JP5334548B2 - Filling method for the base plate of the base isolation device - Google Patents

Filling method for the base plate of the base isolation device Download PDF

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JP5334548B2
JP5334548B2 JP2008304319A JP2008304319A JP5334548B2 JP 5334548 B2 JP5334548 B2 JP 5334548B2 JP 2008304319 A JP2008304319 A JP 2008304319A JP 2008304319 A JP2008304319 A JP 2008304319A JP 5334548 B2 JP5334548 B2 JP 5334548B2
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filler
filling
base plate
hopper
concrete
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JP2010127033A (en
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誠治 金森
英 野中
孝一 佐藤
淳一 田中
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Kumagai Gumi Co Ltd
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Description

本発明は、事務所ビル、工場あるいは集合住宅などの建築物の基礎において、免震装置を設置する際に、免震装置のベースプレートの下部に高流動コンクリートまたはグラウト材（モルタル）などの充填材を充填する充填方法に関する。   The present invention provides a filler such as high-fluidity concrete or grout material (mortar) in the lower part of the base plate of the seismic isolation device when the seismic isolation device is installed on the foundation of a building such as an office building, factory or apartment house. The present invention relates to a filling method.

免震装置を据え置く基礎（土台）となる免震基礎の上面に免震装置の下部のベースプレートを設置する作業は以下のように行われている。まず、建築物の床版コンクリートを形成し、床版コンクリート上の所定の位置に型枠を組み立て、型枠内にコンクリートを打設して免震基礎の下部コンクリートを形成する。下部コンクリート上にベースプレートを受ける架台を設置するとともに、免震基礎を補強するはかま筋を組み立てる。ベースプレートは、円形や多角形に形成された厚さ１０〜３０ｍｍ程度の鉄板のような平板である。架台の上部にはベースプレート設置面を形成するための３個以上のベースプレート支持体が設けられており、架台に設けられたベースプレート支持体の上下移動機構を操作してベースプレート支持体の上下位置を調整することによってベースプレート設置面の水平レベルを調整する。架台上部に形成された水平レベル調整後のベースプレート設置面にベースプレートの下面を載置し、ベースプレートの上面が水平面となるように設置する。ベースプレートの中央部には、ベースプレートの上下面に貫通する注入孔が形成されている。
グラウト材のような充填材やコンクリートを、ホッパー及び自動突き棒装置を備えた充填装置を用いて注入孔よりベースプレート下に注入する。この際、ホッパーの充填材排出口とベースプレートの注入孔とが合うようにベースプレートの上面に充填装置が設置される。まず、コンクリートがホッパー内からホッパーの充填材排出口及びベースプレートの注入孔を経由して型枠で囲まれたベースプレート下に打設されることによって先行コンクリートが形成される。この際、先行コンクリートの天端がベースプレートの下面より下方に約３０〜５０ｍｍ程度の位置まで来るようにする。即ち、先行コンクリートの天端とベースプレートの下面との間に約３０〜５０ｍｍ程度の充填材充填用空間が形成される。そして、充填材がホッパー内からホッパーの充填材排出口及びベースプレートの注入孔を経由して充填材充填用空間内に打設供給されて上端部充填材層が形成される（例えば、特許文献１等参照）。
特開平１１−２９３９３３号公報 The work of installing the base plate at the bottom of the seismic isolation device on the upper surface of the seismic isolation foundation that will be the base (base) on which the seismic isolation device is installed is performed as follows. First, floor slab concrete of a building is formed, a formwork is assembled at a predetermined position on the floor slab concrete, and concrete is placed in the formwork to form the lower concrete of the seismic isolation foundation. A base for receiving the base plate will be installed on the lower concrete, and a hoop will be assembled to reinforce the base for seismic isolation. The base plate is a flat plate such as an iron plate having a thickness of about 10 to 30 mm formed in a circular or polygonal shape. Three or more base plate supports for forming the base plate installation surface are provided on the top of the base, and the vertical position of the base plate support is adjusted by operating the vertical movement mechanism of the base plate support provided on the base. To adjust the horizontal level of the base plate installation surface. The lower surface of the base plate is placed on the base plate installation surface after the horizontal level adjustment formed on the gantry, and the upper surface of the base plate is installed so as to be a horizontal plane. An injection hole penetrating the upper and lower surfaces of the base plate is formed at the center of the base plate.
A filler such as a grout material or concrete is poured under the base plate from the filling hole using a filling device including a hopper and an automatic thrusting device. At this time, the filling device is installed on the upper surface of the base plate so that the filler discharge port of the hopper and the injection hole of the base plate are aligned. First, prior concrete is formed by placing concrete from the inside of the hopper through the filler discharge port of the hopper and the injection hole of the base plate and under the base plate surrounded by the formwork. At this time, the top end of the preceding concrete is made to reach a position of about 30 to 50 mm below the lower surface of the base plate. That is, a filler filling space of about 30 to 50 mm is formed between the top end of the preceding concrete and the lower surface of the base plate. Then, the filler is driven and supplied from the inside of the hopper through the filler discharge port of the hopper and the injection hole of the base plate into the filler filling space to form an upper end filler layer (for example, Patent Document 1). Etc.).
JP 11-293933 A

従来の免震装置のベースプレート下部への充填材の充填方法によれば、ベースプレート９０下に落下する流動速度の遅い充填材を使用した場合や、充填材が途切れ途切れに投入されたりした場合など、図１６に示すように、充填材が先行コンクリート９５の天端９５ｔより上方向に山状に盛り上がるように積み重なりにくく、先行コンクリート９５の天端９５ｔに落下した充填材がすぐに周辺に拡がって面状になり、広い面を形成したままベースプレート９０の下面９２に面接触するため、その下面９２の真下に存在する空気が充填材により押出されないまま充填材が充填されるので、充填材内への空気の巻き込みが多くなる。即ち、充填材が盛り上がるよりも先に周辺に拡がってしまうため、ベースプレート９０の下面９２と充填材充填用空間６９に充填される充填材との境界に空気溜まりが生じやすくなる。
本発明は上記問題点に鑑みてなされたもので、ベースプレートの下面と充填材充填用空間に充填される充填材との境界での空気溜まりを生じにくくできる免震装置のベースプレート下部への充填材の充填方法を提供する。 According to the filling method of the base material in the lower part of the base plate of the conventional seismic isolation device, when using a slow flow rate filler that falls below the base plate 90, or when the filler is thrown intermittently, As shown in FIG. 16, the filler is difficult to stack so as to rise in a mountain shape above the top end 95 t of the preceding concrete 95, and the filler that has fallen on the top end 95 t of the preceding concrete 95 immediately spreads to the periphery. Since the surface is in surface contact with the lower surface 92 of the base plate 90 while forming a wide surface, the filler is filled without the air present directly below the lower surface 92 being extruded by the filler. Increased air entrainment. In other words, since the filler spreads to the periphery before it rises, an air pocket tends to be generated at the boundary between the lower surface 92 of the base plate 90 and the filler filled in the filler filling space 69.
The present invention has been made in view of the above problems, and a filler for the lower portion of the base plate of the seismic isolation device that is less likely to cause air accumulation at the boundary between the lower surface of the base plate and the filler filled in the filler filling space. A filling method is provided.

本発明によれば、免震基礎を構築する型枠を配置するとともに、注入孔を有するベースプレートを上記型枠で規定される空間の上端部に設置し、この型枠内に先行コンクリートを打設して先行コンクリートの上面とベースプレートの下面との間に充填材充填用空間を設けた後、充填装置を用いて、ベースプレートの注入孔を介して充填材充填用空間に充填材を充填する充填方法において、充填装置は、充填材充填用空間の容積よりも大きい容積を有したホッパーと、開閉装置とを備え、ホッパーは、円錐状筒壁部と当該円錐状筒壁部の円錐の頂点部に形成された他端開口と連通する円筒部とを備え、円筒部の他端開口により形成された充填材排出口の周縁には、ベースプレートの上面に接触する設置板を備え、開閉装置が、円筒部の筒の内側により形成された内部通路を開閉可能に設けられており、
充填装置を用いて充填材充填用空間に充填材を充填する際には、ホッパーの設置板の下面をベースプレートの上面に接触させ、かつ、充填材排出口とベースプレートの注入孔とを合わせ、開閉装置で円筒部の内部通路を閉じておいて、ホッパー内に充填材充填用空間に充填される充填材の量よりも多い量の充填材を貯留し、充填材内の空気が脱気されるのに必要な所定時間を経過した場合に開閉装置を開けて、ホッパー内から充填材充填用空間内に充填材を連続して充填することにより、上記注入孔の近傍において先行コンクリートの上面からベースプレートの下面まで充填材を盛り上げた後、充填材が同心円状に外側に拡大しながら充填材充填用空間に充填されるようにしたので、充填材が先行コンクリートの天端より上方向に山状に盛り上がるように積み重ねられた後にベースプレートの下面に接する山ができた後に放射状に周囲に拡がるので、充填材が充填材充填用空間の空気を押出しながら充填されるため、充填材とベースプレートの下面との間の空気を少なくできる。よって、充填材充填用空間に対する充填材の充填性が向上し、充填材が密実に充填されて空気溜まりの少ない上端部充填材層を形成できる。つまり、ベースプレートの下面と充填材充填用空間に充填される充填材との境界に空気溜まりが生じにくくなり、ベースプレートの下面と充填材との密着性が保たれた高品質の免震基礎を提供できる。また、ホッパーの円錐状筒壁部と円筒部とを介して充填材を充填材充填用空間に連続して供給したので、充填材充填用空間に連続して流下する充填材の圧力及び充填材の流動速度が速くなるので、充填材充填用空間への充填材の充填性が良くなって、ベースプレートの下面と充填材との密着性が保たれた高品質の免震基礎を提供できる。
上記充填材として、内径５ｃｍ、長さ１０ｃｍの円筒を平面に直立させた状態で円筒内に充填された後、円筒が引き上げられてから５分後に平面上に円状に広がった充填材の円状の径の平均が２５０ｍｍ±２０ｍｍである流動特性を有した充填材を用いたので、上述したように、充填材が先行コンクリートの天端より上方向に山状に盛り上がるように積み重ねられた後にベースプレートの下面に接する山ができた後に放射状に周囲に拡がるので、充填材が充填材充填用空間の空気を押出しながら充填されるため、充填材とベースプレートの下面との間の空気を少なくできる。
上記充填材として、セメントと膨張材粉末とから成る結合材と、カチオン性界面活性剤から選ばれる第１の水溶性低分子化合物から成る第１の粉体とアニオン性芳香族化合物から選ばれる第２の水溶性低分子化合物から成る第２の粉体とから成る増粘材と、細骨材と、セメント混和剤粉末と、水とが混ぜ合わされて形成され、単位水量が３８０〜４４０ｋｇ／ｍ3、水と結合材との比が３４．０〜６０．０％、第１の粉体の量と第２の粉体の量との和が２．５０〜４．００ｋｇ／ｍ3、セメント混和剤粉末の量が０．９０〜２．００ｋｇ／ｍ3であるモルタルを用いたので、充填材が先行コンクリートの天端より上方向に山状に盛り上がるように積み重ねられた後にベースプレートの下面に接する山ができた後に放射状に周囲に拡がるので、充填材が充填材充填用空間の空気を押出しながら充填されるため、充填材とベースプレートの下面との間の空気を少なくできる。 According to the present invention, the mold for constructing the base for base isolation is arranged, the base plate having the injection hole is installed at the upper end of the space defined by the mold, and the preceding concrete is placed in the mold. Then, after providing a filler filling space between the upper surface of the preceding concrete and the lower surface of the base plate, a filling method of filling the filler into the filler filling space through the injection hole of the base plate using a filling device The filling device includes a hopper having a volume larger than the volume of the filler filling space, and an opening / closing device, and the hopper is provided at a conical cylindrical wall portion and a conical apex portion of the conical cylindrical wall portion. A cylindrical portion that communicates with the other end opening formed, and a periphery of the filler discharge port formed by the other end opening of the cylindrical portion is provided with an installation plate that contacts the upper surface of the base plate. Inside the tube Provided openably an internal passageway which is more formed,
When filling the filler filling space using the filling device, the lower surface of the hopper installation plate is brought into contact with the upper surface of the base plate, and the filler outlet and the injection hole of the base plate are aligned and opened and closed. With the apparatus, the internal passage of the cylindrical portion is closed, a larger amount of filler than the amount of filler filled in the filler filling space is stored in the hopper, and the air in the filler is deaerated. The base plate is opened from the upper surface of the preceding concrete in the vicinity of the injection hole by opening the opening / closing device when a predetermined time required for the operation has elapsed and continuously filling the filler into the filler filling space from the hopper. After filling up the filler to the lower surface of the filler, the filler is filled in the filler filling space while expanding concentrically outward, so that the filler is mountain-shaped upward from the top edge of the preceding concrete Prime After the piles are formed so that they come into contact with the bottom surface of the base plate, the filler spreads radially, so that the filler is filled while extruding the air in the filler filling space. You can reduce the air between. Therefore, the filling property of the filler with respect to the filler filling space is improved, and the upper filler layer with a small amount of air accumulation can be formed by filling the filler densely. In other words, air pools are less likely to form at the boundary between the bottom surface of the base plate and the filler filled in the filler filling space, and a high-quality seismic isolation base that maintains the adhesion between the bottom surface of the base plate and the filler is provided. it can. Further, since the filler is continuously supplied to the filler filling space via the conical cylindrical wall portion and the cylindrical portion of the hopper, the pressure of the filler and the filler continuously flowing down to the filler filling space Therefore, the filling property of the filler into the filler filling space is improved, and a high quality seismic isolation base in which the adhesion between the lower surface of the base plate and the filler is maintained can be provided.
As the filler, a cylinder having an inner diameter of 5 cm and a length of 10 cm is filled in the cylinder in an upright plane, and then the filler is expanded circularly on the plane 5 minutes after the cylinder is pulled up. Since the filler having a flow characteristic with an average shape diameter of 250 mm ± 20 mm was used, as described above, after the filler was stacked so as to rise in a mountain shape above the top edge of the preceding concrete, Since a crest that touches the lower surface of the base plate is spread radially, the filler is filled while extruding the air in the filler filling space, so that the air between the filler and the lower surface of the base plate can be reduced.
As the filler, a binder composed of cement and an expanding material powder, a first powder composed of a first water-soluble low-molecular compound selected from cationic surfactants, and an anionic aromatic compound selected from It is formed by mixing a thickener consisting of a second powder composed of two water-soluble low molecular weight compounds, a fine aggregate, a cement admixture powder, and water, with a unit water amount of 380 to 440 kg / m. 3 , the ratio of water to binder is 34.0 to 60.0%, the sum of the amount of the first powder and the amount of the second powder is 2.50 to 4.00 kg / m 3 , cement Since the mortar with an amount of admixture powder of 0.90 to 2.00 kg / m 3 was used, the filler was stacked on the lower surface of the base plate after being piled up in a mountain shape upward from the top edge of the preceding concrete. After the mountain that touches it, it spreads radially around it, Since Hama material is filled with extruded air filling material filling the space, it can be reduced air between the lower surface of the filler and the base plate.

最良の形態１
図１乃至図５は最良の形態１を示し、図１は充填装置の断面図を示し、図２は充填材のフロー試験を示し、図３はフロー試験を行った充填材の流動特性を示し、図４は充填材の組成を示し、図５は充填装置の充填材の充填を示す。 Best form 1
1 to 5 show the best mode 1, FIG. 1 shows a cross-sectional view of the filling device, FIG. 2 shows a flow test of the filler, and FIG. 3 shows the flow characteristics of the filler subjected to the flow test. 4 shows the composition of the filler, and FIG. 5 shows the filling of the filler in the filling device.

まず、図１乃至図５を参照し、ベースプレート９０の構成、ベースプレート９０の設置作業、免震装置のベースプレート下部への充填材の充填方法の概要について説明する。
図外の免震装置を据え置く基礎（土台）となる免震基礎１６の上面１６ａに設置されることになるベースプレート９０は、例えば厚さ１０〜３０ｍｍ程度の鉄板により形成され、ベースプレート９０の表面（以下、上面という）９１と裏面（以下、下面という）９２とに貫通する注入孔９３を備える。
このベースプレート９０の設置作業は、まず、建築物の床版コンクリート１００を形成し、床版コンクリート１００上の所定の位置に型枠１０５を組み立て、型枠内９４にコンクリートを打設して先行下部コンクリート９５ａを形成する。先行下部コンクリート９５ａ上にベースプレート９０を受ける架台９６を設置するとともに、免震基礎１６を補強する図外の鉄筋をはかま筋として組み立てる。架台９６の上部にはベースプレート設置面９８を形成するための３個以上のベースプレート支持体９９が設けられており、架台９６に設けられたベースプレート支持体９９の上下移動機構１０１（ねじ式上下機構など）を操作してベースプレート支持体９９の上下位置を調整することによってベースプレート設置面９８の水平レベルを調整する。架台９６の上部に形成された水平レベル調整後のベースプレート設置面９８にベースプレート９０の下面９２を載置し、ベースプレート９０の上面９１が水平面となるように設置固定する。
そして、充填装置１を用い、ベースプレート９０の注入孔９３を介して型枠内９４にコンクリートを打設して先行上部コンクリート９５ｂを形成する。この場合、先行上部コンクリート９５ｂの天端９５ｔ（先行コンクリートの上面）とベースプレート９０の下面９２との間に充填材充填用空間６９を残すように、先行上部コンクリート９５ｂを形成する。尚、充填装置１を用いずに、先行下部コンクリート９５ａや先行上部コンクリート９５ｂを形成するコンクリートを、ベースプレート９０の外周縁９０ａと型枠１０５との間Ｄや注入孔９３より直接打設してもよい。この場合、コンクリートがベースプレート９０の下面９２に付着しないように打設する。その後、充填装置１を用い、充填材をベースプレート９０の注入孔９３を介して充填材充填用空間６９に充填する。 First, with reference to FIG. 1 thru | or FIG. 5, the structure of the baseplate 90, the installation work of the baseplate 90, and the outline | summary of the filling method of the filler to the baseplate lower part of a seismic isolation apparatus are demonstrated.
The base plate 90 to be installed on the upper surface 16a of the seismic isolation base 16 serving as a foundation (base) on which the seismic isolation device (not shown) is installed is formed of, for example, an iron plate having a thickness of about 10 to 30 mm. Hereinafter, an injection hole 93 penetrating through an upper surface 91 and a rear surface (hereinafter referred to as a lower surface) 92 is provided.
The base plate 90 is installed by first forming a floor slab concrete 100 of a building, assembling a mold 105 at a predetermined position on the floor slab concrete 100, and placing the concrete in the mold 94 to lower the preceding lower part. Concrete 95a is formed. A base 96 for receiving the base plate 90 is installed on the preceding lower concrete 95a, and a reinforcing bar (not shown) for reinforcing the seismic isolation foundation 16 is assembled as a stirrup. Three or more base plate supports 99 for forming a base plate installation surface 98 are provided on the top of the gantry 96, and a vertical movement mechanism 101 (such as a screw type vertical mechanism) of the base plate support 99 provided on the gantry 96. ) To adjust the horizontal level of the base plate installation surface 98 by adjusting the vertical position of the base plate support 99. The lower surface 92 of the base plate 90 is placed on the base plate installation surface 98 after the horizontal level adjustment formed on the upper part of the gantry 96, and is installed and fixed so that the upper surface 91 of the base plate 90 becomes a horizontal plane.
Then, using the filling device 1, concrete is placed in the mold 94 through the injection hole 93 of the base plate 90 to form the preceding upper concrete 95 b. In this case, the preceding upper concrete 95b is formed so as to leave a filler filling space 69 between the top end 95t of the preceding upper concrete 95b (the upper surface of the preceding concrete) and the lower surface 92 of the base plate 90. Even if the concrete forming the leading lower concrete 95a and the leading upper concrete 95b is directly placed from the outer peripheral edge 90a of the base plate 90 and the mold 105 or through the injection hole 93 without using the filling device 1. Good. In this case, the concrete is placed so as not to adhere to the lower surface 92 of the base plate 90. Thereafter, using the filling device 1, the filler is filled into the filler filling space 69 through the injection hole 93 of the base plate 90.

本発明では、上記充填材として、５分フロー試験の計測値が２５０ｍｍ±２０ｍｍである特性を有した充填材を用いた。５分フロー試験は、図２に示すように、内径５ｃｍ、長さ１０ｃｍの円筒１１を用い、当該円筒１１を平面１２に直立させた状態で円筒１１内に充填材を充填した後、円筒１１を引き上げることによって平面上に円状に広がった引き上げ５分後の充填材の円状の最大径の長さａと、当該最大径と直交する方向における充填材の円状の径（直交径）の長さｂとを測定し、その最大径の長さと直交径の長さとの平均値を５分フロー試験の計測値とした。
即ち、内径５ｃｍ、長さ１０ｃｍの円筒１１を平面１２に直立させた状態で円筒１１内に充填された後、円筒１１が引き上げられてから５分後に平面上に円状に広がった充填材の円状の径の平均が２５０ｍｍ±２０ｍｍである流動特性を有した充填材を用いた。 In the present invention, a filler having a characteristic that a measured value of a 5-minute flow test is 250 mm ± 20 mm is used as the filler. In the 5-minute flow test, as shown in FIG. 2, a cylinder 11 having an inner diameter of 5 cm and a length of 10 cm is used, and after filling the cylinder 11 with the cylinder 11 standing upright on the plane 12, the cylinder 11 The length a of the circular maximum diameter of the filler after 5 minutes of lifting and the circular diameter of the filler in the direction orthogonal to the maximum diameter (orthogonal diameter) The length b was measured, and the average value of the length of the maximum diameter and the length of the orthogonal diameter was taken as the measurement value of the 5-minute flow test.
That is, after filling the cylinder 11 in a state where the cylinder 11 having an inner diameter of 5 cm and a length of 10 cm stands upright on the plane 12, the filler spread in a circular shape on the plane 5 minutes after the cylinder 11 is pulled up. A filler having flow characteristics having an average circular diameter of 250 mm ± 20 mm was used.

具体的には、図３に示すように、５分フロー試験の計測値が平均２４８ｍｍ、１分フロー試験の計測値が平均２４０ｍｍ、２０ｃｍ到達時間が９秒という流動特性を有した充填材を用いた。
１分フロー試験は、内径５ｃｍ、長さ１０ｃｍの円筒を用い、当該円筒１１を平面１２に直立させた状態で円筒１１内に充填材を充填した後、円筒１１を引き上げることによって平面１２上に円状に広がった引き上げ１分後の充填材の円状の最大径の長さと、当該最大径と直交する方向における充填材の円状の径（直交径）の長さとを測定し、その最大径の長さと直交径の長さとの平均値を１分フロー試験の計測値とした。
２０ｃｍ到達時間は、フロー試験において円筒１１が引き上げられてから充填材の円状の最大径が２０ｃｍになるまでに要した時間である。 Specifically, as shown in FIG. 3, a filler having a flow characteristic in which the measurement value of the 5-minute flow test is 248 mm on average, the measurement value of the 1-minute flow test is 240 mm on average, and the arrival time of 20 cm is 9 seconds is used. It was.
In the 1-minute flow test, a cylinder having an inner diameter of 5 cm and a length of 10 cm is used. After filling the cylinder 11 with the cylinder 11 standing upright on the plane 12, the cylinder 11 is pulled up to bring the cylinder 11 up onto the plane 12. Measure the length of the circular maximum diameter of the filler one minute after lifting up in a circular shape and the length of the circular diameter (orthogonal diameter) of the filler in the direction perpendicular to the maximum diameter. The average value of the length of the diameter and the length of the orthogonal diameter was taken as the measurement value of the 1 minute flow test.
The 20 cm arrival time is the time required for the circular maximum diameter of the filler to reach 20 cm after the cylinder 11 is pulled up in the flow test.

５分フロー試験の計測値が平均２４８ｍｍであった充填材の組成を図４に示す。図４中の、Ｗ／Ｂは水と結合材との比（以下、水結合材比（Ｗ／Ｂ）という）、Ｗは単位水量、Ｂは結合材（セメント（Ｃ）＋膨張材粉末（ＣＳＡ））の単位量、Ｃはセメント（住友大阪社製、普通ポルトランドセメント、密度３．１６ｇ／ｃｍ3）の単位量、ＣＳＡは膨張材粉末（電気化学鉱業社製、商品名「デンカパワーＣＳＡ」、ρ＝３．１０ｇ／ｃｍ3）の単位量、Ｓは細骨材（竹折鉱業社製、岐阜県瑞浪産珪砂５号、密度＝２．５８ｇ／ｃｍ3）の単位量、Ｖｔは増粘材（花王社製、製品名「ビスコトップ２００Ｐ」）の単位量、ＳＰは高性能減水材（花王社製、商品名「マイテイ２１Ｐ」ρ＝２．３０ｇ／ｃｍ3）の単位量、Ａｄ２は消泡材粉末（日本トレーディング社製、商品名「ＦＳアンチフォームＤＣ２−４２４８Ｓ」）の単位量、Ａｄ１は膨張材（アルミ粉）の単位量である。
５分フロー試験の計測値が平均２４８ｍｍであった充填材は、図４に示すように、Ｗ／Ｂが３５％、Ｗが４２５ｋｇ／ｍ3、Ｂが１２１４ｋｇ／ｍ3、Ｃが１１９４ｋｇ／ｍ3、ＣＳＡが２０ｋｇ／ｍ3、Ｓが４８５ｋｇ／ｍ3、Ｖｔが３．７０ｋｇ／ｍ3、ＳＰが１．６５ｋｇ／ｍ3、Ａｄ２が０．２ｋｇ／ｍ3、Ａｄ１が０．０２０ｋｇ／ｍ3の充填材である。 FIG. 4 shows the composition of the filler whose average value for the 5-minute flow test was 248 mm. In FIG. 4, W / B is a ratio of water and binder (hereinafter referred to as water binder ratio (W / B)), W is a unit water amount, and B is binder (cement (C) + expansion material powder ( CSA)), C is a unit quantity of cement (Sumitomo Osaka Co., Ltd., ordinary Portland cement, density 3.16 g / cm 3 ), CSA is an expanded material powder (Electrochemical Mining Co., Ltd., trade name “Denka Power CSA” ”, Ρ = 3.10 g / cm 3 ), S is a fine aggregate (manufactured by Takeori Mining Co., Ltd., Mizunami Silica No. 5 from Gifu Prefecture, density = 2.58 g / cm 3 ), Vt is Unit amount of thickening material (product name “Visco Top 200P” manufactured by Kao Corporation), SP is a unit amount of high performance water reducing material (product name “Mighty 21P” ρ = 2.30 g / cm 3 ) manufactured by Kao Corporation, Ad2 is a defoaming powder (made by Nippon Trading Co., Ltd., trade name “FS Antifoam DC2-4248S”) The unit amount, Ad1, is a unit amount of the expansion material (aluminum powder).
Measurement of 5 minutes flow test was averaged 248mm fillers, as shown in FIG. 4, W / B is 35%, W is 425 kg / m 3, B is 1214kg / m 3, C is 1194kg / m 3, CSA is 20kg / m 3, S is 485kg / m 3, Vt is 3.70kg / m 3, SP is 1.65kg / m 3, Ad2 is 0.2kg / m 3, Ad1 the 0.020kg / m 3 filler.

充填装置１は、ホッパー２Ａと、開閉装置４Ａとを備える。ホッパー２Ａは、例えば、金属により形成され、一端開口が充填材入口２１となる大径円筒部２２と、他端開口が充填材排出口２３となる漏斗部２４とを備える。漏斗部２４は、円錐状筒壁部２５と、円錐状筒壁部２５の円錐の頂点部に形成された他端開口２６と連通する小径円筒部２７とを備える。大径円筒部２２よりも筒の内径が小さい小径円筒部２７は、大径円筒部２２の筒の中心及び円錐状筒壁部２５の円錐の中心と同軸に設けられる。充填材排出口２３の周縁には、ベースプレート９０の上面９１に接触する設置板１８を備える。設置板の下面は小径円筒部２７の中心軸と直交する平面で、かつ、充填材排出口２３の下端面と同一平面に形成される。
即ち、大径円筒部２２の他端開口２８の縁部と円錐状筒壁部２５の底面側に位置する一端開口２９の縁部とが溶接などの連結手段で連結され、かつ、円錐状筒壁部２５の他端開口２６の縁部と小径円筒部２７の一端開口３０の縁部とが溶接などの連結手段で互いに連結されることによって、充填材が大径円筒部２２の筒内及び円錐状筒壁部２５の円錐状筒内を経由して小径円筒部２７の筒内に移動可能に形成され、小径円筒部２７の他端開口が充填材排出口２３を形成する。充填材排出口２３の口径は、注入孔９３の孔径よりも小さく形成される。また、ホッパー２Ａは、充填材充填用空間６９の容積よりも大きい容積を有したホッパー２Ａを用いる。ホッパー２Ａは、大径円筒部２２の一端開口が上端となるように支持されることにより、充填材入口２１から投入された充填材を、大径円筒部２２の内部、漏斗部２４の円錐状筒壁部２５の内部、漏斗部２４の小径円筒部２７の内部を通過させて小径円筒部２７の他端開口である充填材排出口２３から排出する構成を備える。
開閉装置４Ａは、小径円筒部２７の筒の内側により形成された内部通路１７を開閉する。 The filling device 1 includes a hopper 2A and an opening / closing device 4A. The hopper 2 </ b> A is made of, for example, metal, and includes a large-diameter cylindrical portion 22 whose one end opening is a filler inlet 21, and a funnel portion 24 whose other end opening is a filler outlet 23. The funnel portion 24 includes a conical cylindrical wall portion 25 and a small-diameter cylindrical portion 27 communicating with the other end opening 26 formed at the apex portion of the conical cylindrical wall portion 25. The small-diameter cylindrical part 27 whose inner diameter is smaller than that of the large-diameter cylindrical part 22 is provided coaxially with the center of the cylinder of the large-diameter cylindrical part 22 and the center of the cone of the conical cylindrical wall part 25. An installation plate 18 that contacts the upper surface 91 of the base plate 90 is provided at the periphery of the filler discharge port 23. The lower surface of the installation plate is formed in a plane perpendicular to the central axis of the small diameter cylindrical portion 27 and in the same plane as the lower end surface of the filler discharge port 23.
That is, the edge of the other end opening 28 of the large diameter cylindrical portion 22 and the edge of the one end opening 29 located on the bottom surface side of the conical tube wall 25 are connected by a connecting means such as welding, and the conical tube. The edge part of the other end opening 26 of the wall part 25 and the edge part of the one end opening 30 of the small diameter cylindrical part 27 are connected to each other by connection means such as welding, so that the filler is in the cylinder of the large diameter cylindrical part 22 and The small diameter cylindrical portion 27 is formed so as to be movable through the conical tube wall 25 and into the small diameter cylindrical portion 27, and the other end opening of the small diameter cylindrical portion 27 forms the filler discharge port 23. The diameter of the filler discharge port 23 is formed smaller than the diameter of the injection hole 93. The hopper 2A is a hopper 2A having a volume larger than that of the filler filling space 69. The hopper 2 </ b> A is supported so that one end opening of the large-diameter cylindrical portion 22 is at the upper end, thereby allowing the filler charged from the filler inlet 21 to be conical in the large-diameter cylindrical portion 22 and the funnel portion 24. The inside of the cylindrical wall part 25 and the inside of the small diameter cylindrical part 27 of the funnel part 24 are passed, and the structure discharged | emitted from the filler discharge port 23 which is the other end opening of the small diameter cylindrical part 27 is provided.
The opening / closing device 4 </ b> A opens and closes the internal passage 17 formed by the inside of the cylinder of the small diameter cylindrical portion 27.

充填装置１を用いた免震装置のベースプレート下部への充填材の充填方法を説明する。
ホッパー２Ａの設置板１８の下面１９をベースプレートの上面９１に接触させ、かつ、充填材排出口２３と注入孔９３とを合わせ、ホッパー２Ａの内側にコンクリートを入れる。この際、開閉装置４Ａで小径円筒部２７の内部通路１７を閉じておいて、ホッパー２Ａ内にコンクリートを貯留した後に、開閉装置４Ａを開けると、コンクリートがホッパー２の充填材排出口２３及びベースプレート９０の注入孔９３を経由して型枠内９４に打設されて先行下部コンクリート９５ａ及び先行上部コンクリート９５ｂが形成される。この際、先行上部コンクリート９５ｂの天端９５ｔがベースプレート９０の下面９２より下方に約３０ｍｍ〜５０ｍｍ程度の位置まで来るようにする。尚、上述したように、先行下部コンクリート９５ａ及び先行上部コンクリート９５ｂを形成するコンクリートの打設は、ベースプレート９０の外周縁９０ａと型枠１０５との間Ｄや注入孔９３より直接打設してもよい。
先行上部コンクリート９５ｂがまだ固化しておらずコンクリートの初期沈下がおさまった状態において、先行上部コンクリート９５ｂの天端９５ｔとベースプレート９０の下面９２との隙間により形成された充填材充填用空間６９に、充填装置１を用いて上記充填材を充填する。この場合も、ホッパー２Ａの設置板１８の下面１９をベースプレートの上面９１に接触させ、かつ、充填材排出口２３と注入孔９３とを合わせ、ホッパー２Ａの内側に充填材を入れる。この際、開閉装置４Ａで小径円筒部２７の内部通路１７を閉じておいて、ホッパー２Ａ内に充填材を貯留しておく。ホッパー２Ａ内に貯留する充填材の量は、少なくとも充填材充填用空間６９に充填される充填材の量よりも多くしておいて、ホッパー２Ａ内から充填材充填用空間６９内に充填材を連続して充填できるようにしておく。 A method of filling the filler into the lower part of the base plate of the seismic isolation device using the filling device 1 will be described.
The lower surface 19 of the installation plate 18 of the hopper 2A is brought into contact with the upper surface 91 of the base plate, the filler discharge port 23 and the injection hole 93 are aligned, and concrete is put inside the hopper 2A. At this time, when the opening / closing device 4A is opened after the internal passage 17 of the small-diameter cylindrical portion 27 is closed by the opening / closing device 4A and the concrete is stored in the hopper 2A, the concrete is opened by the filler discharge port 23 and the base plate of the hopper 2. A leading lower concrete 95a and a leading upper concrete 95b are formed by being placed in the mold 94 through 90 injection holes 93. At this time, the top end 95t of the preceding upper concrete 95b is positioned below the lower surface 92 of the base plate 90 to a position of about 30 mm to 50 mm. As described above, the concrete that forms the leading lower concrete 95a and the leading upper concrete 95b may be placed directly between the outer peripheral edge 90a of the base plate 90 and the mold 105 or from the injection hole 93. Good.
In the state where the preceding upper concrete 95b has not yet solidified and the initial settlement of the concrete has been suppressed, in the filler filling space 69 formed by the gap between the top end 95t of the preceding upper concrete 95b and the lower surface 92 of the base plate 90, The filler is filled using the filling device 1. Also in this case, the lower surface 19 of the installation plate 18 of the hopper 2A is brought into contact with the upper surface 91 of the base plate, the filler discharge port 23 and the injection hole 93 are aligned, and the filler is put inside the hopper 2A. At this time, the internal passage 17 of the small diameter cylindrical portion 27 is closed by the opening / closing device 4A, and the filler is stored in the hopper 2A. The amount of the filler stored in the hopper 2A is set to be at least larger than the amount of the filler filled in the filler filling space 69, and the filler is put into the filler filling space 69 from the hopper 2A. Keep filling continuously.

ホッパー２Ａ内に充填材を貯留しておくことで、ホッパー２Ａ内に貯留された充填材の自重により充填材内に巻き込んだ空気（気泡）が脱気される。即ち、ホッパー２Ａ内への投入時またはポンプによる圧送時に充填材中に巻き込んだ空気（気泡）を脱気できる。充填材内に空気（気泡）が含有されていると、充填材充填用空間６９に充填材が充填された後、充填材内に含まれていた空気（気泡）が上昇してベースプレート９０の下面９２と充填材充填用空間６９に充填される充填材との境界に溜まってしまって、ベースプレート９０の下面９２と充填材との密着性が保たれず、免震装置の性能を低下させてしまうという問題があるが、最良の形態１では、ホッパー２Ａ内に貯留された充填材の自重により充填材内の空気が脱気されるので、当該問題を解消できる。ホッパー２Ａ内に一定量の充填材を貯留した後に充填材内の空気が脱気されるのに必要な所定時間を経過した場合に、開閉装置４Ａを開けると、充填材がホッパー２Ａの充填材排出口２３及びベースプレート９０の注入孔９３を経由して充填材充填用空間６９に打設充填されて上端部充填材層１１０が形成される。この際、ホッパー２Ａ内の充填材に充填材の高さに応じた圧力が加わるので、その後開閉装置４Ａを開けることにより、脱気された充填材がスムーズに充填材排出口２３より排出されて上記充填材充填用空間６９に充填されるので、ベースプレート９０の下面９２と充填材との間の空隙が形成されにくくなり、高品質の免震基礎を施工できる。また、ホッパー２Ａ内から充填材充填用空間６９内に充填材が連続して充填されるため、打設された充填材内に空気がとりこまれにくくなる。よって、最良の形態１では、貯留により脱気された充填材を充填材充填用空間６９内に送り込めるとともに、充填材を充填材充填用空間６９に一度に一気に打設できるため充填材内に空気がとりこまれにくくなるので、ベースプレート９０の下面９２と充填材充填用空間６９に充填される充填材との境界に空気溜まりが生じにくくなり、ベースプレート９０の下面９２と充填材との密着性が保たれた高品質の免震基礎を提供できるようになる。   By storing the filler in the hopper 2A, the air (bubbles) entrained in the filler is degassed by the weight of the filler stored in the hopper 2A. That is, the air (bubbles) entrained in the filler can be degassed when charged into the hopper 2A or pumped by the pump. If air (bubbles) is contained in the filler, after the filler filling space 69 is filled with the filler, the air (bubbles) contained in the filler rises and the lower surface of the base plate 90 92 and the filler filled in the filler filling space 69, the adhesion between the lower surface 92 of the base plate 90 and the filler is not maintained, and the performance of the seismic isolation device is deteriorated. However, in the best mode 1, since the air in the filler is degassed by the weight of the filler stored in the hopper 2A, the problem can be solved. When a predetermined time necessary for the air in the filler to be deaerated has elapsed after storing a certain amount of filler in the hopper 2A, the filler becomes the filler of the hopper 2A when the opening / closing device 4A is opened. An upper end filler layer 110 is formed by filling and filling the filler filling space 69 via the discharge port 23 and the injection hole 93 of the base plate 90. At this time, since pressure corresponding to the height of the filler is applied to the filler in the hopper 2A, the degassed filler is smoothly discharged from the filler outlet 23 by opening the opening / closing device 4A thereafter. Since the filler filling space 69 is filled, a gap between the lower surface 92 of the base plate 90 and the filler is hardly formed, and a high-quality seismic isolation foundation can be constructed. Further, since the filler is continuously filled from the hopper 2A into the filler filling space 69, it is difficult for air to be taken into the placed filler. Therefore, in the best mode 1, the filler deaerated by storage can be fed into the filler filling space 69 and the filler can be placed in the filler filling space 69 at a time, so that the filler is put into the filler. Since it becomes difficult for air to be taken in, air accumulation is less likely to occur at the boundary between the lower surface 92 of the base plate 90 and the filler filled in the filler filling space 69, and adhesion between the lower surface 92 of the base plate 90 and the filler is improved. It will be possible to provide a high-quality seismic isolation base that is maintained.

充填材の充填作業は、ベースプレート９０の注入孔９３の上端まで充填材が満たされてベースプレート９０の下面９２と充填材とが密着された状態となるまで行われるが、充填材が充填材充填用空間６９に充填されたか否かの具体的な確認方法は、ベースプレート９０の外周縁９０ａと型枠１０５との間Ｄから覗いて上端部充填材層１１０の天端１１５がベースプレート９０の下面９２よりも上方に到達していることを確認することにより可能である。   The filling operation of the filler is performed until the filler is filled up to the upper end of the injection hole 93 of the base plate 90 until the lower surface 92 of the base plate 90 and the filler are in close contact with each other. The filler is used for filling the filler. A specific method for confirming whether or not the space 69 has been filled is as follows. The top end 115 of the upper end filler layer 110 is seen from the lower surface 92 of the base plate 90 as viewed from the space D between the outer peripheral edge 90 a of the base plate 90 and the mold 105. Is also possible by confirming that it has reached the top.

最良の形態１では、内径５ｃｍ、長さ１０ｃｍの円筒１１を平面１２に直立させた状態で円筒１１内に充填された後、円筒１１が引き上げられてから５分後に平面上に円状に広がった充填材の円状の径の平均が２５０ｍｍ±２０ｍｍである流動特性を有した充填材を用い、注入孔９３の近傍において先行上部コンクリート９５ｂの天端９５ｔ（上面）からベースプレート９０の下面９２まで充填材を盛り上げた後、充填材が同心円状に外側に拡大しながら充填材充填用空間６９に充填されるようにした。これにより、充填材が先行上部コンクリート９５ｂの天端９５ｔより上方向に山状に盛り上がるように積み重ねられた後にベースプレート９０の下面９２に接する山ができ、その後に放射状に周囲に拡がるので、充填材が充填材充填用空間６９の空気を押出しながら充填されるため、充填材内への空気の巻き込みを少なくできる（図５（ａ），図５（ｂ）参照）。よって、充填材充填用空間６９に対する充填材の充填性が向上し、充填材が密実に充填されて空気溜まりの少ない上端部充填材層１１０を形成できる。つまり、ベースプレート９０の下面９２と充填材充填用空間６９に充填される充填材との境界に空気溜まりが生じにくくなり、ベースプレート９０の下面９２と充填材との密着性が保たれた高品質の免震基礎を提供できる。   In the best mode 1, a cylinder 11 having an inner diameter of 5 cm and a length of 10 cm is filled in the cylinder 11 in an upright state on the plane 12, and then spreads circularly on the plane 5 minutes after the cylinder 11 is pulled up. From the top end 95t (upper surface) of the preceding upper concrete 95b to the lower surface 92 of the base plate 90 in the vicinity of the injection hole 93, using a filler having flow characteristics with an average circular diameter of 250 mm ± 20 mm. After the filling material was raised, the filling material 69 was filled in the filling material filling space 69 while concentrically expanding outward. As a result, the filler material is piled up so as to rise in a mountain shape upward from the top end 95t of the preceding upper concrete 95b, and then a mountain is formed that contacts the lower surface 92 of the base plate 90, and then spreads radially to the periphery. Is filled while extruding the air in the filler filling space 69, so that the entrainment of air into the filler can be reduced (see FIGS. 5A and 5B). Therefore, the filling property of the filling material into the filling material filling space 69 is improved, and the filling material is densely filled so that the upper end filling material layer 110 with less air accumulation can be formed. That is, an air pool is less likely to be generated at the boundary between the lower surface 92 of the base plate 90 and the filler filled in the filler filling space 69, and the adhesiveness between the lower surface 92 of the base plate 90 and the filler is maintained. Can provide seismic isolation foundation.

最良の形態１によれば、ホッパー２Ａ内に充填材を貯留するための開閉装置４Ａを備えたので、充填材内の空気を脱気でき、ベースプレート９０の下面９２と充填材充填用空間６９に充填される充填材との境界に空気溜まりが生じにくくなり、ベースプレート９０の下面９２と充填材との密着性が保たれた高品質の免震基礎を提供できるようになる。また、開閉装置４Ａが小径円筒部２７の内部通路１７を開通させる状態に設定された場合、ホッパー２Ａ内に貯留されていた充填材の高さ位置に応じた圧力が、排出圧力となって充填材に加わるので、充填材が充填材排出口２３よりスムーズに排出されるようになって、充填作業時間を短くでき、作業性が向上する。   According to the best mode 1, since the opening / closing device 4A for storing the filler in the hopper 2A is provided, the air in the filler can be degassed, and the lower surface 92 of the base plate 90 and the filler filling space 69 are provided. Air accumulation is less likely to occur at the boundary with the filler to be filled, and a high-quality seismic isolation base in which the adhesion between the lower surface 92 of the base plate 90 and the filler is maintained can be provided. When the opening / closing device 4A is set to open the internal passage 17 of the small-diameter cylindrical portion 27, the pressure corresponding to the height position of the filler stored in the hopper 2A becomes the discharge pressure and is filled. Since the filler is added to the material, the filler is smoothly discharged from the filler discharge port 23, the filling operation time can be shortened, and workability is improved.

最良の形態１によれば、充填材充填用空間６９の容積よりも大きい容積を有したホッパー２Ａを備えて、充填材充填用空間６９に充填される充填材の量より多い一定量の充填材をホッパー２Ａ内に貯留しておいて、充填材充填用空間６９に充填材が充填されるまで充填材充填用空間６９に充填材を連続して供給するので、ホッパー２Ａ内から充填材充填用空間６９内に充填材を連続して充填できるため、充填材充填用空間６９に供給された充填材内に空気がとりこまれにくくなるので、ベースプレート９０の下面９２と充填材充填用空間６９に充填される充填材との境界に空気溜まり（空隙）が生じにくくなり、ベースプレート９０の下面９２と充填材との密着性が保たれた高品質の免震基礎を提供できる。   According to the best mode 1, the hopper 2A having a volume larger than the volume of the filler filling space 69 is provided, and a certain amount of filler larger than the amount of filler filled in the filler filling space 69 is obtained. Is stored in the hopper 2A, and the filler is continuously supplied to the filler filling space 69 until the filler filling space 69 is filled with the filler. Since the filler can be continuously filled in the space 69, air is not easily taken into the filler supplied to the filler filling space 69, so the lower surface 92 of the base plate 90 and the filler filling space 69 are filled. Therefore, an air reservoir (gap) is less likely to be generated at the boundary with the filler, and a high-quality seismic isolation base in which the adhesion between the lower surface 92 of the base plate 90 and the filler is maintained can be provided.

最良の形態１によれば、ホッパー２Ａの円錐形状の漏斗部２４により、円錐状筒壁部２５から小径円筒部２７に流下する充填材の圧力を大きくする圧力付与部が構成される。即ち、充填材の流下する方向に向けて流路径が漸次小さくなるように形成された円錐状筒壁部２５を備えているので、充填材が円錐状筒壁部２５の流路径の大きい部分から流路径の漸次小さくなる円錐状筒壁部２５内を経由して流路径の小さい小径円筒部２７内に流下するため、ベルヌーイの法則によって小径円筒部２７内に連続して流下する充填材の圧力が増し、充填材排出口２３より落下する充填材の流動速度が速くなるので、ベースプレート９０の充填材充填用空間６９への充填材の充填性が良くなって、ベースプレート９０の下面９２と充填材との密着性が保たれた高品質の免震基礎を提供できる。   According to the best mode 1, the conical funnel portion 24 of the hopper 2A constitutes a pressure applying portion that increases the pressure of the filler flowing down from the conical cylindrical wall portion 25 to the small diameter cylindrical portion 27. That is, since the conical cylindrical wall portion 25 is formed so that the flow path diameter gradually decreases in the direction in which the filler flows down, the filler starts from the portion of the conical cylindrical wall portion 25 where the flow path diameter is large. The pressure of the filler that continuously flows down into the small-diameter cylindrical portion 27 according to Bernoulli's law because it flows into the small-diameter cylindrical portion 27 with a small flow-path diameter through the conical cylindrical wall portion 25 with a gradually decreasing flow-path diameter. Since the flow rate of the filler falling from the filler discharge port 23 is increased, the filling property of the filler into the filler filling space 69 of the base plate 90 is improved, and the lower surface 92 of the base plate 90 and the filler Can provide high quality seismic isolation bases that maintain close contact with

最良の形態１によれば、ホッパー２Ａが上述した圧力付与部を備えるため、小径円筒部２７内に流下する充填材の圧力が増し、充填材排出口２３より落下する充填材の流動速度がさらに速くなるため、充填材内への空気の巻き込みをさらに少なくできるので、さらに空気溜まりの少ない上端部充填材層１１０を形成でき、ベースプレート９０の下面９２と充填材との密着性が保たれたより高品質の免震基礎を提供できる。   According to the best mode 1, since the hopper 2A includes the pressure applying portion described above, the pressure of the filler flowing down into the small diameter cylindrical portion 27 is increased, and the flow rate of the filler falling from the filler discharge port 23 is further increased. Since the speed is increased, air can be further reduced from being entrained in the filler, so that the upper end filler layer 110 with less air accumulation can be formed, and the adhesion between the lower surface 92 of the base plate 90 and the filler is maintained higher. Can provide quality seismic isolation base.

最良の形態１によれば、充填材排出口２３の孔径は、ベースプレート９０に形成された注入孔９３の孔径よりも小さく形成されたので、注入孔９３の孔の中心Ｂと充填材排出口２３の孔の中心Ａとが一致するように位置合わされた状態で充填材が注入される場合に、充填材が注入孔９３の周囲に位置するベースプレート９０の注入孔９３近傍の上面９１に接触せず、注入孔９３近傍の上面９１に充填材が付着するのを防止できる。   According to the best mode 1, since the hole diameter of the filler discharge port 23 is smaller than the hole diameter of the injection hole 93 formed in the base plate 90, the center B of the hole of the injection hole 93 and the filler discharge port 23 are formed. When the filler is injected in a state of being aligned with the center A of the hole, the filler does not contact the upper surface 91 in the vicinity of the injection hole 93 of the base plate 90 positioned around the injection hole 93. The filler can be prevented from adhering to the upper surface 91 in the vicinity of the injection hole 93.

最良の形態１によれば、ホッパー２Ａが、小径円筒部２７を備えたので、角管を用いた場合に比べて、充填材が筒内をスムーズに流れるので、充填作業時間を短くでき、作業性が向上する。   According to the best mode 1, since the hopper 2A includes the small-diameter cylindrical portion 27, the filling material flows smoothly in the cylinder as compared with the case where the square tube is used. Improves.

最良の形態２
図６を参照し、充填材充填用空間６９に充填材を充填する充填装置１の構成について詳説する。充填装置１は、ホッパー２と、ホッパー支持台３と、シャッターバルブ装置４とを備え、ホッパー２とホッパー支持台３とが分離可能に構成される。 Best form 2
With reference to FIG. 6, the configuration of the filling device 1 for filling the filler filling space 69 with the filler will be described in detail. The filling device 1 includes a hopper 2, a hopper support base 3, and a shutter valve device 4, and is configured such that the hopper 2 and the hopper support base 3 are separable.

ホッパー２は、例えば、金属により形成され、一端開口が充填材入口２１となる大径円筒部２２と、他端開口が充填材排出口２３となる漏斗部２４とを備える。漏斗部２４は、円錐状筒壁部２５と、円錐状筒壁部２５の円錐の頂点部に形成された他端開口２６と連通する小径円筒部２７とを備える。大径円筒部２２よりも筒の内径が小さい小径円筒部２７は、大径円筒部２２の筒の中心及び円錐状筒壁部２５の円錐の中心と同軸に設けられる。
即ち、大径円筒部２２の他端開口２８の縁部と円錐状筒壁部２５の底面側に位置する一端開口２９の縁部とが後述するリング平板を介して溶接などの連結手段で連結され、かつ、円錐状筒壁部２５の他端開口２６の縁部と小径円筒部２７の一端開口３０の縁部とが溶接などの連結手段で互いに連結されることによって、充填材が大径円筒部２２の筒内及び円錐状筒壁部２５の円錐状筒内を経由して小径円筒部２７の筒内に移動可能に形成され、小径円筒部２７の他端開口が充填材排出口２３を形成する。
大径円筒部２２の他端開口２８の口内径ｄ１は、円錐状筒壁部２５の一端開口２９の開口の口内径ｄ２よりも大径であり、大径円筒部２２の他端開口２８の縁部２８ａと円錐状筒壁部２５の一端開口２９の縁部２９ａとの間を塞ぐようにリング平板３１が配置される。上記大径円筒部２２の他端開口２８の縁部２８ａとリング平板３１の外周縁部側上面とが溶接などの連結手段により連結され、円錐状筒壁部２５の一端開口２９の縁部２９ａとリング平板３１の内周縁部側下面とが溶接などの連結手段により連結されることによって、当該リング平板３１の下面３２が後述のホッパー受面５０に載置される面となる。
つまり、ホッパー２は、大径円筒部２２の一端開口が上端となるようにホッパー支持台３に載置されることにより、大径円筒部２２の一端開口である充填材入口２１から投入された充填材を、大径円筒部２２の内部、漏斗部２４の円錐状筒壁部２５の内部、漏斗部２４の小径円筒部２７の内部を通過させて小径円筒部２７の他端開口である充填材排出口２３から排出する構成を備える。 The hopper 2 is formed of, for example, metal, and includes a large-diameter cylindrical portion 22 whose one end opening is a filler inlet 21 and a funnel portion 24 whose other end opening is a filler outlet 23. The funnel portion 24 includes a conical cylindrical wall portion 25 and a small-diameter cylindrical portion 27 communicating with the other end opening 26 formed at the apex portion of the conical cylindrical wall portion 25. The small-diameter cylindrical part 27 whose inner diameter is smaller than that of the large-diameter cylindrical part 22 is provided coaxially with the center of the cylinder of the large-diameter cylindrical part 22 and the center of the cone of the conical cylindrical wall part 25.
That is, the edge of the other end opening 28 of the large-diameter cylindrical portion 22 and the edge of the one end opening 29 positioned on the bottom surface side of the conical cylindrical wall portion 25 are connected by a connecting means such as welding via a ring flat plate described later. In addition, the edge of the other end opening 26 of the conical cylindrical wall portion 25 and the edge of the one end opening 30 of the small diameter cylindrical portion 27 are connected to each other by connection means such as welding, so that the filler has a large diameter. It is formed so as to be movable in the cylinder of the small diameter cylindrical portion 27 via the inside of the cylinder of the cylindrical portion 22 and the conical cylinder of the conical cylindrical wall portion 25, and the other end opening of the small diameter cylindrical portion 27 is the filler discharge port 23. Form.
The mouth inner diameter d1 of the other end opening 28 of the large diameter cylindrical portion 22 is larger than the mouth inner diameter d2 of the opening of the one end opening 29 of the conical cylindrical wall portion 25. The ring flat plate 31 is disposed so as to block between the edge portion 28a and the edge portion 29a of the one end opening 29 of the conical cylindrical wall portion 25. The edge 28a of the other end opening 28 of the large-diameter cylindrical portion 22 and the outer peripheral edge side upper surface of the ring flat plate 31 are connected by connecting means such as welding, and the edge 29a of the one-end opening 29 of the conical cylindrical wall portion 25 is connected. And the lower surface 32 of the ring flat plate 31 are connected to each other by connecting means such as welding, so that the lower surface 32 of the ring flat plate 31 becomes a surface to be placed on a hopper receiving surface 50 described later.
In other words, the hopper 2 is loaded from the filler inlet 21 which is one end opening of the large diameter cylindrical portion 22 by being placed on the hopper support 3 so that the one end opening of the large diameter cylindrical portion 22 becomes the upper end. The filling material is passed through the inside of the large diameter cylindrical portion 22, the inside of the conical cylindrical wall portion 25 of the funnel portion 24, and the inside of the small diameter cylindrical portion 27 of the funnel portion 24 to fill the other end opening of the small diameter cylindrical portion 27. A structure for discharging from the material discharge port 23 is provided.

尚、充填材排出口２３の口径は、注入孔９３の孔径よりも小さく形成される。また、ホッパー２は、充填材充填用空間６９の容積よりも大きい容積を有したホッパー２を用いる。   The diameter of the filler discharge port 23 is smaller than the diameter of the injection hole 93. The hopper 2 is a hopper 2 having a volume larger than the volume of the filler filling space 69.

ホッパー支持台３は、前記型枠１０５を跨ぐように設置されるものであり、支持脚３５と、梁受筒部３６と、梁部３７と、ホッパー受枠３８とを備える。
支持脚３５は、型枠１０５の中心を挟んで対称に対向するように２つ設けられる。支持脚３５は、垂直面に平行な四角枠により構成され、四角枠の縦辺部を形成する脚柱部３９の下端に車輪４０を備える。梁受筒部３６は、脚柱部３９及び四角枠の横辺部を形成する連結部４１と直交する方向に延長するように、一端部４２が、脚柱部３９の上端に溶接などの連結手段で連結される。
梁部３７は、各支持脚３５の脚柱部３９の上端に設けられて互いに向かい合う梁受筒部３６の他端開口４３から梁受筒部３６の筒内に収納される両端部を備えた互いに平行に向かい合う一対の支持梁４４と、当該一対の支持梁４４同士を連結する２つの連結梁４５とを備える。２つの連結梁４５は、一対の支持梁４４の中央部を連結するために所定間隔隔てて平行に設けられる。
ホッパー受枠３８は、リング枠体４６により形成される。リング枠体４６は、一対の支持梁４４の上面４７と連結梁４５の上面４８に跨って載置されて、リング枠体４６の下面６６と上面４７；４８とが溶接などの連結手段により固定状態に連結される。
リング枠体４６の上面４９におけるリングの内径は、ホッパー２の漏斗部２４が通過可能で、かつ、ホッパー２の大径円筒部２２が通過不可能な大きさに形成される。
つまり、ホッパー２の漏斗部２４がリング枠体４６の上側からリングの内側を通過し、ホッパー２のリング平板３１の外面がリング枠体４６の上面４９により形成されたホッパー受面５０に載置される。即ち、ホッパー２がリング平板３１を備え、ホッパー受枠３８がホッパー２のリング平板３１の外面を安定に載置可能なホッパー受面５０を備えたので、ホッパー２をホッパー受枠３８の所定の位置に容易かつ正確に設置できる。 The hopper support 3 is installed so as to straddle the mold 105 and includes a support leg 35, a beam receiving cylinder portion 36, a beam portion 37, and a hopper receiving frame 38.
Two support legs 35 are provided so as to face each other symmetrically across the center of the mold 105. The support leg 35 is configured by a rectangular frame parallel to a vertical plane, and includes a wheel 40 at the lower end of a leg column portion 39 that forms a vertical side portion of the square frame. One end portion 42 is connected to the upper end of the leg column portion 39 by welding or the like so that the beam receiving cylinder portion 36 extends in a direction orthogonal to the leg column portion 39 and the connection portion 41 that forms the lateral side portion of the square frame. Connected by means.
The beam portion 37 includes both end portions that are provided at the upper end of the leg column portion 39 of each support leg 35 and are accommodated in the tube of the beam receiving tube portion 36 from the other end opening 43 of the beam receiving tube portion 36 facing each other. A pair of support beams 44 facing in parallel with each other and two connection beams 45 for connecting the pair of support beams 44 to each other are provided. The two connecting beams 45 are provided in parallel at a predetermined interval in order to connect the central portions of the pair of support beams 44.
The hopper receiving frame 38 is formed by the ring frame 46. The ring frame 46 is placed across the upper surface 47 of the pair of support beams 44 and the upper surface 48 of the connecting beam 45, and the lower surface 66 and the upper surface 47; 48 of the ring frame 46 are fixed by connecting means such as welding. Linked to the state.
The inner diameter of the ring on the upper surface 49 of the ring frame 46 is formed such that the funnel portion 24 of the hopper 2 can pass and the large-diameter cylindrical portion 22 of the hopper 2 cannot pass.
That is, the funnel portion 24 of the hopper 2 passes through the inside of the ring from the upper side of the ring frame body 46, and the outer surface of the ring flat plate 31 of the hopper 2 is placed on the hopper receiving surface 50 formed by the upper surface 49 of the ring frame body 46. Is done. That is, since the hopper 2 includes the ring flat plate 31 and the hopper receiving frame 38 includes the hopper receiving surface 50 on which the outer surface of the ring flat plate 31 of the hopper 2 can be stably placed, the hopper 2 is placed at a predetermined position on the hopper receiving frame 38. Easy and accurate installation.

一対の支持脚３５は、互いに向かい合う型枠１０５の一対の側面の外側にそれぞれ配置される。一対の支持脚３５は、梁受筒部３６と支持梁４４との嵌め合いが解除されるまで、互いに離れる方向に支持脚３５間の距離を調整可能であり、また、一対の支持脚３５は、梁受筒部３６の他端開口４３の縁部と連結梁４５とが衝突するまで、互いに近づく方向に支持脚３５間の距離を調整可能である。即ち、梁受筒部３６と支持梁４４との嵌め合い長さが、支持脚３５；３５間の距離可変長さとなり、梁受筒部３６と支持梁４４との嵌め合い機構が、支持脚間距離長さ可変機構を形成する。   The pair of support legs 35 are respectively disposed outside the pair of side surfaces of the mold 105 facing each other. The pair of support legs 35 can adjust the distance between the support legs 35 in a direction away from each other until the fitting between the beam receiving cylinder portion 36 and the support beam 44 is released. The distance between the support legs 35 can be adjusted in a direction approaching each other until the edge of the other end opening 43 of the beam receiving cylinder portion 36 and the connecting beam 45 collide with each other. That is, the fitting length between the beam receiving cylinder portion 36 and the support beam 44 is a variable distance between the support legs 35; 35, and the fitting mechanism between the beam receiving cylinder portion 36 and the support beam 44 is used as a support leg. An inter-distance length variable mechanism is formed.

支持脚３５は、高さ位置可変機構を備える。高さ位置可変機構は、例えば、ねじ式の脚柱部３９や、短管を脚柱部３９の下端に継ぎ足したり外したりする等の手段により実現できる。例えば、脚柱部３９の下端面より脚柱部３９の上方内部に延長する雌ねじ部と、車輪支持部の上部プレートより上方に突出するように設けられた雄ねじ部とにより実現可能である。脚柱部３９の下端に継ぎ足したり外されたりする短管は、車輪支持部の上部プレートとの連結部を備えた構成とすればよい。
高さ位置可変機構により、ホッパー受枠３８の高さ位置を調整できるようにすることによって、ホッパー２の充填材排出口２３とベースプレート９０の注入孔９３との間の間隔を小さくしたり、ホッパー２の充填材排出口２３とベースプレート９０の上面９１とを接触させることができ、充填材がホッパー２の充填材排出口２３、及び、注入孔９３を経由して充填材充填用空間６９内に良好に充填される。 The support leg 35 includes a height position variable mechanism. The height position variable mechanism can be realized by, for example, a screw-type pedestal portion 39 or a means for adding or removing a short pipe to or from the lower end of the pedestal portion 39. For example, it is realizable by the internal thread part extended from the lower end surface of the leg pillar part 39 to the upper inside of the leg pillar part 39, and the external thread part provided so that it might protrude upwards from the upper plate of a wheel support part. The short pipe that is added to or removed from the lower end of the pedestal 39 may be configured to include a connecting portion with the upper plate of the wheel support portion.
By enabling the height position of the hopper receiving frame 38 to be adjusted by the height position variable mechanism, the interval between the filler discharge port 23 of the hopper 2 and the injection hole 93 of the base plate 90 can be reduced, or the hopper 2 The filler discharge port 23 and the upper surface 91 of the base plate 90 can be brought into contact with each other, and the filler is good in the filler filling space 69 via the filler discharge port 23 and the injection hole 93 of the hopper 2. Filled.

シャッターバルブ装置４は、ホッパー２の小径円筒部２７の筒路を開通または閉鎖する機構であり、シャッター板５１、シャッター板操作棒５２を備える。図７に示すように、シャッター板５１は、平板５１ａと、平板５１ａの一端部に形成されて後述する両端開口筒状通路６２の一端開口６３の縁面に接触するストッパ部５１ｂとを備える。平板５１ａは、小径円筒部２７の筒の内径よりも大きい径の円貫通孔により形成された開通路５３と、遮断面５４とを備える。   The shutter valve device 4 is a mechanism that opens or closes the tube path of the small diameter cylindrical portion 27 of the hopper 2, and includes a shutter plate 51 and a shutter plate operating rod 52. As shown in FIG. 7, the shutter plate 51 includes a flat plate 51 a and a stopper portion 51 b that is formed at one end of the flat plate 51 a and contacts an edge surface of one end opening 63 of a both-end opening cylindrical passage 62 described later. The flat plate 51 a includes an open passage 53 formed by a circular through hole having a diameter larger than the inner diameter of the cylinder of the small diameter cylindrical portion 27, and a blocking surface 54.

小径円筒部２７は、上下に分割された上筒部５５及び下筒部５６と、シャッター板挿入部５７とを備える。シャッター板挿入部５７は、上筒部５５の下端開口の縁部より延長して上筒部５５の中心軸と直交するように設けられた上フランジ５９と、下筒部５６の上端開口の縁部より延長して下筒部５６の中心軸と直交するように設けられた下フランジ６１と、上下のフランジ５９；６１の側縁同士を繋ぐ側板５８；５８（図８参照）とで形成された矩形状の両端開口筒状通路６２により形成される。シャッター板挿入部５７を形成する両端開口筒状通路６２の通路高さは、シャッター板５１の板厚より大きい寸法に形成され、シャッター板５１が両端開口筒状通路６２内を移動可能である。両端開口筒状通路６２の一端開口６３がシャッター板５１の出入口となり、シャッター板５１は当該出入口を介して両端開口筒状通路６２内に挿入される。
図６；８に示すように、シャッター板５１の平板５１ａの他端部側が両端開口筒状通路６２内に挿入され、シャッター板操作棒５２によりシャッター板５１のストッパ部５１ｂが押圧されて、図７に示すように、両端開口筒状通路６２の一端開口６３の縁面とストッパ部５１ｂとが接触した状態となった場合に、開通路５３を形成する円貫通孔の中心と上筒部５５及び下筒部５６の中心とが一致して、この状態での上筒部５５の筒内と開通路５３と下筒部５６の筒内とにより、漏斗部２４内の充填材を充填材排出口２３に導く小径円筒部２７の筒路が形成される。小径円筒部２７の筒路を介した充填作業を終了する場合には、図６に示すように、シャッター板操作棒５２によりシャッター板５１の平板５１ａの他端部が押圧され、シャッター板５１の平板５１ａの遮断面５４が上筒部５５の筒内と下筒部５６の筒内との間を遮断することによって、充填材排出口２３からの充填材の排出が停止する。尚、シャッター板５１とシャッター板操作棒５２とを一体にしてシャッター板操作棒５２を引く操作をする場合、充填材の重さなどでシャッター板操作棒５２を引けないので、ここでは、シャッター板５１の平板５１ａの一端部側と他端部側とをシャッター板操作棒５２により押圧して小径円筒部２７の筒路を開閉するようにしている。 The small-diameter cylindrical part 27 includes an upper cylinder part 55 and a lower cylinder part 56 that are divided into upper and lower parts, and a shutter plate insertion part 57. The shutter plate insertion portion 57 includes an upper flange 59 provided so as to extend from the edge of the lower end opening of the upper tube portion 55 and orthogonal to the central axis of the upper tube portion 55, and an edge of the upper end opening of the lower tube portion 56. The lower flange 61 is provided so as to extend from the lower portion and orthogonal to the central axis of the lower cylinder portion 56, and the side plates 58; 58 (see FIG. 8) connecting the side edges of the upper and lower flanges 59; It is formed by a cylindrical passage 62 having both ends opened in a rectangular shape. The passage height of the both-end opening cylindrical passage 62 forming the shutter plate insertion portion 57 is formed to be larger than the plate thickness of the shutter plate 51, and the shutter plate 51 can move in the both-end opening tubular passage 62. The one-end opening 63 of the both-end opening cylindrical passage 62 becomes an entrance / exit of the shutter plate 51, and the shutter plate 51 is inserted into the both-end opening cylindrical passage 62 through the entrance / exit.
As shown in FIGS. 6 and 8, the other end side of the flat plate 51a of the shutter plate 51 is inserted into the both-end opening cylindrical passage 62, and the stopper portion 51b of the shutter plate 51 is pressed by the shutter plate operating rod 52. 7, when the edge surface of the one end opening 63 of the both-end opening cylindrical passage 62 comes into contact with the stopper portion 51 b, the center of the circular through hole forming the open passage 53 and the upper cylindrical portion 55. The center of the lower cylinder part 56 coincides with the inside of the upper cylinder part 55, the open passage 53 and the inside of the lower cylinder part 56 in this state, so that the filler in the funnel part 24 is discharged. A cylindrical path of a small diameter cylindrical portion 27 leading to the outlet 23 is formed. When the filling operation via the cylindrical path of the small diameter cylindrical portion 27 is finished, the other end portion of the flat plate 51a of the shutter plate 51 is pressed by the shutter plate operating rod 52 as shown in FIG. When the blocking surface 54 of the flat plate 51a blocks between the inside of the upper cylinder portion 55 and the inside of the lower cylinder portion 56, the discharge of the filler from the filler discharge port 23 is stopped. Note that when the shutter plate 51 and the shutter plate operating rod 52 are integrated to pull the shutter plate operating rod 52, the shutter plate operating rod 52 cannot be pulled due to the weight of the filler. One end side and the other end side of the flat plate 51a 51 are pressed by a shutter plate operating rod 52 to open and close the tube path of the small diameter cylindrical portion 27.

充填装置１を用いた免震装置のベースプレート下部への充填材の充填方法を説明する。
まず、型枠１０５を跨いでホッパー受枠３８がベースプレート９０の注入孔９３の上方に位置されるようにホッパー支持台３を設置する。そして、ホッパー２をホッパー支持台３のホッパー受枠３８に支持されるように設置する。この場合、ホッパー受枠３８に設置したホッパー２の充填材排出口２３の中心軸とベースプレート９０の注入孔９３の中心軸とが一致するように、支持脚間距離長さ可変機構を調節してホッパー２の充填材排出口２３とベースプレート９０の注入孔９３との間の間隔を調整する。このように位置決めされた場合、充填材排出口２３の口径が、注入孔９３の孔径よりも小さく形成されていることから、充填材排出口２３より充填材が排出された場合に、注入孔９３周りのベースプレート９０の上面９１に充填材がこぼれにくくなり、充填材を充填材充填用空間６９に効率的に充填できる。
尚、ホッパー２とホッパー支持台３とを分離し、ホッパー支持台３を上記型枠１０５を跨いだ状態で設置し、コンクリート供給場所に移動させたホッパー２内にコンクリートを投入してそのホッパー２をホッパー支持台３に据え置いてホッパー２内のコンクリートを型枠内９４に打設したり、ホッパー受枠３８にホッパー２を設置した状態でホッパー２の内側に圧送管などを用いてコンクリートを投入することでコンクリートを型枠内９４に打設して、先行下部コンクリート９５ａ及び先行上部コンクリート９５ｂを形成する。即ち、コンクリート供給場所においてコンクリートを収容したホッパー２をクレーン等の揚重機で吊上げてホッパー受枠３８に設置することで、ホッパー受枠３８にホッパー２及びコンクリートの荷重を支持させるか、ホッパー受枠３８にホッパー２を設置した状態でホッパー２の内側に圧送管などを用いてコンクリートを投入することで、ホッパー受枠３８にホッパー２及びコンクリートの荷重を支持させる。この際、シャッターバルブ装置４を閉じておく。そして、ホッパー受枠３８に設置されたホッパーのシャッターバルブ装置４を開状態とすることで、コンクリートがホッパー２の充填材排出口２３及びベースプレート９０の注入孔９３を経由して型枠内９４に打設されて先行下部コンクリート９５ａ及び先行上部コンクリート９５ｂが形成される。この際、先行上部コンクリート９５ｂの天端９５ｔがベースプレート９０の下面９２より下方に約３０ｍｍ〜５０ｍｍ程度の位置まで来るようにする。 A method of filling the filler into the lower part of the base plate of the seismic isolation device using the filling device 1 will be described.
First, the hopper support 3 is installed so that the hopper receiving frame 38 is positioned above the injection hole 93 of the base plate 90 across the mold 105. Then, the hopper 2 is installed so as to be supported by the hopper receiving frame 38 of the hopper support 3. In this case, the support leg distance length variable mechanism is adjusted so that the central axis of the filler discharge port 23 of the hopper 2 installed in the hopper receiving frame 38 and the central axis of the injection hole 93 of the base plate 90 coincide with each other. The distance between the second filler discharge port 23 and the injection hole 93 of the base plate 90 is adjusted. When positioned in this way, since the diameter of the filler discharge port 23 is formed smaller than the diameter of the injection hole 93, the injection hole 93 is discharged when the filler is discharged from the filler discharge port 23. The filler is unlikely to spill on the upper surface 91 of the surrounding base plate 90, and the filler can be efficiently filled into the filler filling space 69.
The hopper 2 and the hopper support 3 are separated from each other, the hopper support 3 is installed in a state of straddling the formwork 105, and concrete is poured into the hopper 2 moved to the concrete supply place. Is placed on the hopper support 3 and the concrete in the hopper 2 is placed in the mold 94, or the concrete is thrown into the hopper 2 using a pressure pipe or the like while the hopper 2 is installed in the hopper receiving frame 38. Thus, the concrete is placed in the mold 94 to form the preceding lower concrete 95a and the preceding upper concrete 95b. That is, the hopper 2 containing concrete in a concrete supply place is lifted by a lifting machine such as a crane and installed on the hopper receiving frame 38, so that the hopper receiving frame 38 supports the load of the hopper 2 and concrete, or the hopper receiving frame 38 supports the hopper. In a state where 2 is installed, concrete is put into the hopper 2 using a pressure feeding pipe or the like, so that the hopper receiving frame 38 supports the load of the hopper 2 and the concrete. At this time, the shutter valve device 4 is closed. Then, by opening the shutter valve device 4 of the hopper installed in the hopper receiving frame 38, the concrete is driven into the inside 94 of the mold via the filler discharge port 23 of the hopper 2 and the injection hole 93 of the base plate 90. Thus, the preceding lower concrete 95a and the preceding upper concrete 95b are formed. At this time, the top end 95t of the preceding upper concrete 95b is positioned below the lower surface 92 of the base plate 90 to a position of about 30 mm to 50 mm.

先行上部コンクリート９５ｂがまだ固化しておらずコンクリートの初期沈下がおさまった状態において、先行上部コンクリート９５ｂの天端９５ｔとベースプレート９０の下面９２との隙間により形成された充填材充填用空間６９に、高流動コンクリートやモルタルやセメントペーストのような充填材を注入して充填する。この場合も、ホッパー２とホッパー支持台３とを分離し、ホッパー支持台３を上記型枠１０５を跨いだ状態で設置し、充填材供給場所に移動させたホッパー２内に充填材を投入してそのホッパー２をホッパー支持台３に据え置いてホッパー２内の充填材を充填材充填用空間６９に充填したり、ホッパー受枠３８にホッパー２を設置した状態でホッパー２の内側に圧送管などを用いて充填材を投入することで充填材を充填材充填用空間６９に充填することで上端部充填材層１１０を形成する。即ち、充填材供給場所において充填材を収容したホッパー２をクレーン等の揚重機で吊上げてホッパー受枠３８に設置することで、ホッパー受枠３８にホッパー２及び充填材の荷重を支持させるか、ホッパー受枠３８にホッパー２を設置した状態でホッパー２の内側に圧送管などを用いて充填材を投入することで、ホッパー受枠３８にホッパー２及び充填材の荷重を支持させる。この際、シャッターバルブ装置４を閉じておいて、ホッパー２内に充填材を貯留しておく。ホッパー２内に貯留する充填材の量は、少なくとも充填材充填用空間６９に充填される充填材の量よりも多くしておいて、ホッパー２内から充填材充填用空間６９内に充填材を一度に充填できるようにしておく。ホッパー２内に充填材を貯留しておくことで、上述したように、ホッパー２内に貯留された充填材の自重により充填材内の空気が脱気される。そして、ホッパー２内に一定量の充填材を貯留した後に充填材内の空気が脱気されるのに必要な所定時間を経過した場合に、ホッパー受枠３８に設置されたホッパー２のシャッターバルブ装置４のシャッター板５１を開状態とすることで、充填材がホッパーの充填材排出口２３及びベースプレート９０の注入孔９３を経由して充填材充填用空間６９に打設充填されて上端部充填材層１１０が形成される。この際、最良の形態１と同様に、ホッパー２内から充填材充填用空間６９内に充填材が一度に充填されるため、打設された充填材内に空気がとりこまれにくくなる。よって、最良の形態２では、貯留により脱気された充填材を充填材充填用空間６９内に送り込めるとともに、充填材を充填材充填用空間６９に一度に連続して打設できるため充填材内に空気がとりこまれにくくなるので、ベースプレート９０の下面９２と充填材充填用空間６９に充填される充填材との境界に空気溜まりが生じにくくなり、ベースプレート９０の下面９２と充填材との密着性が保たれた高品質の免震基礎を提供できるようになる。   In the state where the preceding upper concrete 95b has not yet solidified and the initial settlement of the concrete has been suppressed, in the filler filling space 69 formed by the gap between the top end 95t of the preceding upper concrete 95b and the lower surface 92 of the base plate 90, Fill with filling material such as high fluid concrete, mortar or cement paste. Also in this case, the hopper 2 and the hopper support base 3 are separated, the hopper support base 3 is installed across the mold 105, and the filler is put into the hopper 2 moved to the filler supply place. The hopper 2 is placed on the hopper support 3 and the filler in the hopper 2 is filled into the filler filling space 69, or a pressure feed pipe is installed inside the hopper 2 with the hopper 2 installed in the hopper receiving frame 38. The upper filler layer 110 is formed by filling the filler 69 into the filler filling space 69 by using the filler. That is, the hopper 2 containing the filler is lifted by a lifting machine such as a crane at the filler supply place and installed on the hopper receiving frame 38 so that the hopper receiving frame 38 supports the load of the hopper 2 and the filler, or the hopper receiving frame. In a state where the hopper 2 is installed on the hopper 38, a filler is introduced into the hopper 2 using a pressure feed pipe or the like, so that the hopper receiving frame 38 supports the loads of the hopper 2 and the filler. At this time, the shutter valve device 4 is closed and the filler is stored in the hopper 2. The amount of the filler stored in the hopper 2 is set to be at least larger than the amount of the filler filled in the filler filling space 69, and the filler is put into the filler filling space 69 from the hopper 2. Keep filling at once. By storing the filler in the hopper 2, as described above, the air in the filler is degassed by the weight of the filler stored in the hopper 2. The shutter valve device of the hopper 2 installed in the hopper receiving frame 38 when a predetermined time necessary for the air in the filler to be deaerated has elapsed after storing a certain amount of the filler in the hopper 2. 4 in the open state, the filler is cast and filled into the filler filling space 69 via the filler discharge port 23 of the hopper and the injection hole 93 of the base plate 90, and the upper end filler. Layer 110 is formed. At this time, similarly to the best mode 1, since the filler is filled from the hopper 2 into the filler filling space 69 at a time, it is difficult for air to be taken into the placed filler. Therefore, in the best mode 2, since the filler deaerated by storage can be fed into the filler filling space 69 and the filler can be continuously placed in the filler filling space 69 at a time, the filler. Since it is difficult for air to be taken in, air accumulation is less likely to occur at the boundary between the lower surface 92 of the base plate 90 and the filler filled in the filler filling space 69, and the lower surface 92 of the base plate 90 and the filler are in close contact with each other. It will be possible to provide high-quality seismic isolation foundations that maintain their characteristics.

最良の形態１と同じように、充填材が充填材充填用空間６９に充填されたことを確認した後に、次の充填箇所である免震装置のベースプレート下部に充填材を充填するために、車輪４０を走行させてホッパー２及びホッパー支持台３を次の充填箇所まで移動させたり、あるいは、ホッパー２とともにホッパー支持台３をクレーン等の揚重機で吊上げてホッパー２及びホッパー支持台３を次の充填箇所まで移動させた後に、上述した充填作業を行う。   In the same manner as in the best mode 1, after confirming that the filler is filled in the filler filling space 69, the wheel is used to fill the filler under the base plate of the seismic isolation device that is the next filling point. 40 is moved to move the hopper 2 and the hopper support base 3 to the next filling position, or the hopper support base 3 together with the hopper 2 is lifted by a crane or other hoisting machine, and the hopper 2 and the hopper support base 3 are moved to the next place. After moving to the filling location, the above-described filling operation is performed.

最良の形態２では、上述した最良の形態１と同じ効果が得られるとともに、ホッパー２及び充填材の重量がベースプレート９０に加わらないように、充填材を収容したホッパー２を支持するホッパー支持台３を備えたので、ホッパー２の自重及び充填材の重量をホッパー支持台３が負担するのでベースプレート９０に撓みなどの変形が生じず、ベースプレート９０に弾性復元によるベースプレート９０の下面９２と充填材との間の空隙が形成されない。即ち、ベースプレート９０に撓みを発生させずに充填作業を行えて、ベースプレート９０の下面９２と充填材との間の空隙発生を防止可能な免震装置のベースプレート下部への充填材の充填方法を提供できるとともに、この方法を実現するための充填装置１を提供できるので、ベースプレート９０の下面９２と充填材との密着性が保たれた高品質の免震基礎を提供できる。
また、ホッパー２とホッパー支持台３とを分離し、ホッパー支持台３を型枠１０５を跨いだ状態で設置し、ホッパー２内に充填材を投入してそのホッパー２をホッパー支持台３に据え置いてホッパー２内の充填材を充填材充填用空間６９に充填したので、ホッパー２だけを充填材供給場所に移動させることにより、充填材供給作業を容易に行える。
また、ホッパー支持台３が車輪４０を備えるので、車輪４０を走行させてホッパー支持台３を次の充填箇所まで移動させる移動作業が容易となる。 In the best mode 2, the same effect as the best mode 1 described above can be obtained, and the hopper support 3 for supporting the hopper 2 containing the filler so that the weight of the hopper 2 and the filler is not applied to the base plate 90. Since the hopper support 3 bears the weight of the hopper 2 and the weight of the filler, the base plate 90 is not deformed such as bending, and the base plate 90 is elastically restored to the lower surface 92 of the base plate 90 and the filler. No gaps are formed between them. That is, a filling method for filling the lower portion of the base plate of the seismic isolation device that can perform the filling operation without causing the base plate 90 to bend and prevent the gap between the lower surface 92 of the base plate 90 and the filling material is provided. In addition, since the filling device 1 for realizing this method can be provided, it is possible to provide a high-quality seismic isolation base in which the adhesion between the lower surface 92 of the base plate 90 and the filler is maintained.
Further, the hopper 2 and the hopper support 3 are separated, the hopper support 3 is installed in a state of straddling the formwork 105, a filler is put into the hopper 2, and the hopper 2 is placed on the hopper support 3 Since the filler in the hopper 2 is filled in the filler filling space 69, the filler supply operation can be easily performed by moving only the hopper 2 to the filler supply place.
Moreover, since the hopper support base 3 is equipped with the wheel 40, the movement operation | movement which moves the wheel 40 and moves the hopper support base 3 to the following filling location becomes easy.

最良の形態２によれば、シャッターバルブ装置４が、シャッター板５１を備えたので、開通路５３の口径の異なるシャッター板５１を用意しておけば、注入孔９３の口径に応じて、当該注入孔９３の口径より小さい径の開通路５３を有したシャッター板５１を使用することで、ベースプレート９０の注入孔９３近傍の上面９１に充填材が付着するのを防止できる。   According to the best mode 2, since the shutter valve device 4 includes the shutter plate 51, if the shutter plate 51 having a different diameter of the open passage 53 is prepared, the injection is performed according to the diameter of the injection hole 93. By using the shutter plate 51 having the open passage 53 having a diameter smaller than the diameter of the hole 93, it is possible to prevent the filler from adhering to the upper surface 91 in the vicinity of the injection hole 93 of the base plate 90.

最良の形態３
図９に示すように、最良の形態２で説明したホッパー２の小径円筒部２７の下端部に打設管１２０を取付けるようにしてもよい。打設管１２０は、充填材排出口２３と注入孔９３との間の距離に応じた長さで、かつ、充填材排出口２３と注入孔９３との間の充填材通過路として機能する管を用いればよい。
最良の形態３によれば、高さ位置可変機構そのもの、あるいは、高さ位置可変機構によるホッパー受枠３８の高さ位置調整作業を不要とでき、ホッパー２の充填材排出口２３とベースプレート９０の注入孔９３との間の間隔を小さくしたり、ホッパー２の充填材排出口２３と注入孔９３とを連通させる作業を容易にできる。 Best form 3
As shown in FIG. 9, the placing tube 120 may be attached to the lower end portion of the small diameter cylindrical portion 27 of the hopper 2 described in the best mode 2. The casting tube 120 has a length corresponding to the distance between the filler discharge port 23 and the injection hole 93 and functions as a filler passage between the filler discharge port 23 and the injection hole 93. May be used.
According to the best mode 3, the height position variable mechanism itself or the height position adjustment work of the hopper receiving frame 38 by the height position variable mechanism can be eliminated, and the filling material discharge port 23 of the hopper 2 and the injection of the base plate 90 can be performed. The interval between the holes 93 can be reduced, and the work of connecting the filler discharge port 23 of the hopper 2 and the injection hole 93 can be facilitated.

最良の形態４
図１０（ａ），（ｂ）に示すように、最良の形態２で説明したホッパー２の小径円筒部２７の下端部に設けられた打設管１２０を、充填材排出口２３よりも下方に延長可能で、かつ、充填材排出口２３の位置に復帰させることの可能な伸縮管１２１により構成してもよい。伸縮管１２１は、例えば、蛇腹管、あるいは、小径円筒部２７とで二重管を形成する内管あるいは外管により形成すればよい。伸縮管１２１は、充填時以外は、吊上手段１２５により充填材排出口２３側に位置され、充填時には、吊上手段１２５が解除されることで自重で降下して注入孔９３の周囲のベースプレート９０の上面９１に位置される。
最良の形態４によれば、小径円筒部２７が伸縮管１２１を備えたことにより、充填材排出口２３とベースプレート９０の注入孔９３との間の距離を伸縮管１２１の伸縮距離の範囲で調整可能となり、高さ位置可変機構そのもの、あるいは、高さ位置可変機構によるホッパー受枠３８の高さ位置調整作業を不要とでき、ホッパーの充填材排出口２３とベースプレート９０の注入孔９３との間の間隔を小さくしたり、ホッパー２の充填材排出口２３と注入孔９３とを連通させる作業を容易にできる。
また、伸縮管１２１は、蛇腹管または二重管であるので、伸縮管１２１を直線状に垂直方向に移動でき、伸縮管１２１に曲線部ができないため円滑な充填作業が可能となる。
尚、伸縮管１２１の下端開口１２２と注入孔９３とが離れないように外部から伸縮管１２１を注入孔９３側に押え付けたり、伸縮管１２１の下端開口縁部をベースプレート９０の上面９１に固定することで、安定な充填作業を行える。 Best form 4
As shown in FIGS. 10A and 10B, the placement tube 120 provided at the lower end of the small-diameter cylindrical portion 27 of the hopper 2 described in the best mode 2 is disposed below the filler discharge port 23. You may comprise the expansion-contraction pipe | tube 121 which can be extended and can be returned to the position of the filler discharge port 23. FIG. The telescopic tube 121 may be formed of, for example, a bellows tube or an inner tube or an outer tube that forms a double tube with the small diameter cylindrical portion 27. The expansion tube 121 is positioned on the filler outlet 23 side by the lifting means 125 except during filling, and when filling, the base plate around the injection hole 93 is lowered by its own weight by releasing the lifting means 125. 90 is located on the upper surface 91.
According to the best mode 4, the small-diameter cylindrical portion 27 includes the expansion / contraction tube 121, so that the distance between the filler discharge port 23 and the injection hole 93 of the base plate 90 is adjusted within the range of the expansion / contraction distance of the expansion / contraction tube 121. The height position variable mechanism itself or the height position adjustment work of the hopper receiving frame 38 by the height position variable mechanism can be eliminated, and the gap between the filler discharge port 23 of the hopper and the injection hole 93 of the base plate 90 can be reduced. The operation | work which makes a space | interval small or makes the filler discharge port 23 of the hopper 2 and the injection hole 93 communicate can be made easy.
Further, since the expansion / contraction tube 121 is a bellows tube or a double tube, the expansion / contraction tube 121 can be moved linearly in the vertical direction, and since the expansion / contraction tube 121 does not have a curved portion, a smooth filling operation is possible.
The expansion tube 121 is pressed against the injection hole 93 from the outside so that the lower end opening 122 of the expansion tube 121 and the injection hole 93 are not separated from each other, or the lower end opening edge of the expansion tube 121 is fixed to the upper surface 91 of the base plate 90. By doing so, a stable filling operation can be performed.

最良の形態５
図１１（ａ），（ｂ）に示すように、伸縮管１２１が、下端部に重り（カウンターウエイト）を備えた構成としてもよい。重りは、例えば、伸縮管１２１の下端開口１２２の縁部より下端開口１２２より離れる方向でかつ伸縮管１２１の中心軸と直交する方向に延長するように設けられたフランジ状の鋼板材１２６により形成される。重りは、充填時以外は、吊上手段１２５により充填材排出口２３側に位置され、充填時には、吊上手段１２５が解除されることで自重で降下して注入孔９３の周囲のベースプレート９０の上面９１に位置される。この際、伸縮管１２１が伸びて、充填材排出口２３とベースプレート９０の注入孔９３とが伸縮管１２１により連通するので、充填材は、充填材排出口２３、伸縮管１２１、注入孔９３を介してベースプレート９０下の充填材充填用空間６９に充填される。重りは、伸縮管１２１内を通過する充填材の圧力で移動することなく、伸縮管１２１の位置を安定に維持できる重量のものを用いる。 Best form 5
As shown in FIGS. 11A and 11B, the telescopic tube 121 may have a weight (counterweight) at the lower end. The weight is formed by, for example, a flange-shaped steel plate material 126 provided so as to extend in a direction away from the lower end opening 122 from the edge of the lower end opening 122 of the expansion tube 121 and in a direction orthogonal to the central axis of the expansion tube 121. Is done. The weight is positioned on the filler discharge port 23 side by the lifting means 125 except during filling, and when filling, the lifting means 125 is released to drop by its own weight, and the weight of the base plate 90 around the injection hole 93 is reduced. Located on the upper surface 91. At this time, since the expansion / contraction tube 121 extends and the filler discharge port 23 and the injection hole 93 of the base plate 90 communicate with each other through the expansion / contraction tube 121, the filler passes through the filler discharge port 23, the expansion tube 121 and the injection hole 93. The filling material filling space 69 under the base plate 90 is filled. A weight having a weight that can stably maintain the position of the expansion tube 121 without moving by the pressure of the filler passing through the expansion tube 121 is used.

吊上手段１２５としては、重りをロープで吊上げるロープ巻き取り機構、重りを小径円筒部２７にピン等で取付ける機構などを用いればよい。ロープ巻き取り機構を用いる場合、ロープ巻き取り機構を型枠１０５の外側に設置でき、作業者がベースプレート９０上に乗ることなくロープ巻き取り機構を操作できるようになるので、好ましい。   As the lifting means 125, a rope winding mechanism for lifting the weight with a rope, a mechanism for attaching the weight to the small diameter cylindrical portion 27 with a pin or the like may be used. When the rope winding mechanism is used, the rope winding mechanism can be installed outside the formwork 105, and the operator can operate the rope winding mechanism without getting on the base plate 90, which is preferable.

最良の形態５によれば、重りが自重で降下することで、充填材排出口２３とベースプレート９０の注入孔９３とが伸縮管１２１により連通するように、伸縮管１２１の下端とベースプレート９０の上面９１とを密着させることができるので、充填材の充填作業を確実に行うことができる。また、高さ位置可変機構そのもの、あるいは、高さ位置可変機構によるホッパー受枠３８の高さ位置調整作業を不要とできる。   According to the best mode 5, the lower end of the telescopic tube 121 and the upper surface of the base plate 90 are arranged so that the filler discharge port 23 and the injection hole 93 of the base plate 90 communicate with each other by the telescopic tube 121 when the weight is lowered by its own weight. 91 can be brought into close contact with each other, so that the filling work of the filler can be reliably performed. Moreover, the height position adjusting mechanism itself or the height position adjusting operation of the hopper receiving frame 38 by the height position changing mechanism can be eliminated.

最良の形態６
打設管１２０、または、伸縮管１２１の下端に、管路を開閉するバルブを設けてもよい。
最良の形態６によれば、ホッパー２のシャッターバルブ装置４のシャッター板５１の位置から打設管１２０、または、伸縮管１２１の下端までに滞留する充填材をベースプレート９０上に排出してベースプレート９０上に付着させることなく、ホッパー支持台３、または、ホッパー２を移動できるようになる。充填材をベースプレート９０上に付着させたままでは免震装置を水平に設置できない。また、ベースプレート９０上に付着した充填材を除去すればよいが、作業が煩雑である。最良の形態６では、このような問題を解消できる。 Best form 6
You may provide the valve which opens and closes a pipe line in the lower end of the placement pipe | tube 120 or the expansion-contraction pipe | tube 121. FIG.
According to the best mode 6, the filler staying from the position of the shutter plate 51 of the shutter valve device 4 of the hopper 2 to the lower end of the placing tube 120 or the telescopic tube 121 is discharged onto the base plate 90 and discharged. The hopper support 3 or the hopper 2 can be moved without adhering to the top. The seismic isolation device cannot be installed horizontally with the filler attached on the base plate 90. Further, the filler adhering to the base plate 90 may be removed, but the operation is complicated. In the best mode 6, such a problem can be solved.

最良の形態７
図１２に示すように、最良の形態２で説明した充填方法において、ベースプレート９０上に余剰充填材収容容器１３０を設けるようにしてもよい。余剰充填材収容容器１３０は、ベースプレート９０の上面９１に設置される底板１３１と、底板１３１の周縁部より立上るように設けられた壁１３３とを備えた上部開放の箱体により形成される。底板１３１には、注入孔９３の径よりも小径の底孔１３２が形成される。
充填材を充填する際に、余剰充填材収容容器１３０の底板１３１をベースプレート９０の上面９１に置いて、底孔１３２の中心と注入孔９３の中心とが一致するように余剰充填材収容容器１３０を位置決めした後に、例えば、伸縮管１２１の充填材排出口２３と底孔１３２とを連通させて充填材を充填する。尚、余剰充填材収容容器１３０は、例えば、伸縮管１２１や打設管１２０の下端、あるいは、充填材排出口２３からシャッターバルブ装置４のシャッター板５１までの管路の容積よりも大きい容積のものを用いる。
最良の形態７によれば、伸縮管１２１や打設管１２０の下端、あるいは、充填材排出口２３の下端に開閉バルブを設けない場合において、余剰充填材収容容器１３０の底孔１３２の内面より溢れた充填材を余剰充填材収容容器１３０内に捕集できる。また、余剰充填材収容容器１３０内に捕集された充填材は、充填材充填用空間６９内に充填された充填材が何らかの原因で沈下した場合に、充填材充填用空間６９に補充されるので、充填材充填用空間６９内に充填された充填材が何らかの原因で沈下したとしても、ベースプレート９０の下面９２と充填材との密着性が保たれた高品質の免震基礎を提供できる。 Best form 7
As shown in FIG. 12, in the filling method described in the best mode 2, an excess filler container 130 may be provided on the base plate 90. The surplus filling material container 130 is formed by a box having an open top provided with a bottom plate 131 installed on the upper surface 91 of the base plate 90 and a wall 133 provided so as to rise from the peripheral edge of the bottom plate 131. A bottom hole 132 having a diameter smaller than that of the injection hole 93 is formed in the bottom plate 131.
When filling the filler, the bottom plate 131 of the surplus filler container 130 is placed on the upper surface 91 of the base plate 90, and the surplus filler container 130 is placed so that the center of the bottom hole 132 and the center of the injection hole 93 coincide. Is positioned, for example, the filler discharge port 23 of the expansion tube 121 and the bottom hole 132 are communicated with each other to fill the filler. The surplus filling material container 130 has, for example, a volume larger than the lower end of the expansion tube 121 and the placement tube 120 or the volume of the pipe line from the filling material discharge port 23 to the shutter plate 51 of the shutter valve device 4. Use things.
According to the best mode 7, when no open / close valve is provided at the lower end of the telescopic pipe 121 or the placing pipe 120 or the lower end of the filler discharge port 23, the inner surface of the bottom hole 132 of the surplus filler container 130 is The overflowing filler can be collected in the surplus filler container 130. The filler collected in the surplus filler container 130 is replenished to the filler filling space 69 when the filler filled in the filler filling space 69 sinks for some reason. Therefore, even if the filler filled in the filler filling space 69 sinks for some reason, it is possible to provide a high-quality seismic isolation base in which the adhesion between the lower surface 92 of the base plate 90 and the filler is maintained.

最良の形態８
上記余剰充填材収容容器１３０の底孔１３２と注入孔９３との間に薄板を挿入してから、薄板と余剰充填材収容容器１３０とを一緒にベースプレート９０の上面９１から取り除くようにした。
最良の形態８によれば、余剰充填材収容容器１３０内に残った充填材が底孔１３２を介してベースプレート９０の上面９１に落ちるのを防止でき、ベースプレート９０の上面９１を汚さずに余剰充填材収容容器１３０を撤去できるため、充填材がベースプレート９０上に排出されてベースプレート９０上に付着するようなことを防止できる。 Best form 8
After a thin plate was inserted between the bottom hole 132 and the injection hole 93 of the surplus filler container 130, the thin plate and the surplus filler container 130 were removed together from the upper surface 91 of the base plate 90.
According to the best mode 8, it is possible to prevent the filler remaining in the surplus filler container 130 from falling onto the upper surface 91 of the base plate 90 through the bottom hole 132, and to surplusly fill the upper surface 91 of the base plate 90 without contaminating it. Since the material container 130 can be removed, it is possible to prevent the filler from being discharged onto the base plate 90 and attached to the base plate 90.

最良の形態９
最良の形態１；２で説明したホッパー２Ａ；２の大径円筒部２２と漏斗部２４とを分離可能に構成し、この場合において、漏斗部２４を金属製で構成するとともに、大径円筒部２２を防水加工された紙製筒体で構成してもよい。
最良の形態９によれば、容量の大きな大径円筒部２２を使い捨ての紙型枠にすることができ、大径円筒部２２分の重量が減るため、作業所から倉庫などへの台車の運搬作業が容易となる。 Best 9
The large-diameter cylindrical portion 22 and the funnel portion 24 of the hopper 2A; 2 described in the best mode 1; 2 are configured to be separable. In this case, the funnel portion 24 is made of metal and the large-diameter cylindrical portion. You may comprise 22 by the paper-made cylinder body waterproofed.
According to the best mode 9, the large-diameter cylindrical portion 22 having a large capacity can be made into a disposable paper formwork, and the weight of the large-diameter cylindrical portion 22 is reduced, so that the carriage is transported from the work place to a warehouse or the like. Work becomes easy.

最良の形態１０
ホッパー支持台３は、一対の車輪４０つき支持脚３５と、梁受筒部３６と、梁部３７と、ホッパー受枠３８とに、分離可能な構成とすれば、装置の運搬が容易となる。 Best form 10
If the hopper support base 3 is configured to be separable into a pair of support legs 35 with wheels 40, a beam receiving cylinder portion 36, a beam portion 37, and a hopper receiving frame 38, the apparatus can be easily transported.

最良の形態１１
充填材として、次の組成を有したモルタルを用いてもよい。図１３に示したような、セメント（Ｃ）、膨張材粉末（ＣＳＡ）、増粘性混和剤粉末（Ｖｔ）、細骨材（Ｓ）、セメント混和剤粉末（ＳＰ）、消泡剤粉末（Ｅ）、水（Ｗ）が混ぜ合わされて形成されたモルタルであり、図１４に示したように、セメント混和剤粉末の量（ＳＰ使用量）が適正範囲０．９０〜２．００ｋｇ／ｍ3であり、第１の粉体の量と第２の粉体の量との和、即ち、増粘性混和剤粉末の量（Ｖｔ使用量）が適正範囲２．５０〜４．００ｋｇ／ｍ3であり、水結合材比（Ｗ／Ｂ）が適正範囲３４．０〜６０．０％であり、単位水量（Ｗ）が適正範囲３８０〜４４５ｋｇ／ｍ3であるという条件を満たし、かつ、図１５に示した評価値条件を満たす特性を持つモルタルである。即ち、フロー試験の２０ｃｍフロー時間が２０秒〜６０秒、フロー試験の５分フローが２５０±２５ｍｍ、ｐＨ試験の結果が１２．０以下、空気量測定方法で求めた空気量が４．０％以下、ブリーディングが０という条件を満たすモルタルである。 Best form 11
A mortar having the following composition may be used as the filler. As shown in FIG. 13, cement (C), expansion material powder (CSA), thickening admixture powder (Vt), fine aggregate (S), cement admixture powder (SP), defoaming agent powder (E ), Mortar formed by mixing water (W), and as shown in FIG. 14, the amount of cement admixture powder (SP use amount) is within an appropriate range of 0.90 to 2.00 kg / m 3 . Yes, the sum of the amount of the first powder and the amount of the second powder, that is, the amount of the thickening admixture powder (the amount of Vt used) is in an appropriate range of 2.50 to 4.00 kg / m 3 15 satisfies the condition that the water binder ratio (W / B) is in the proper range of 34.0 to 60.0%, and the unit water amount (W) is in the proper range of 380 to 445 kg / m 3 , and FIG. It is a mortar having characteristics that satisfy the evaluation value shown. That is, the 20 cm flow time of the flow test is 20 seconds to 60 seconds, the 5-minute flow of the flow test is 250 ± 25 mm, the result of the pH test is 12.0 or less, and the air amount obtained by the air amount measurement method is 4.0%. Hereinafter, the mortar satisfies the condition that bleeding is 0.

増粘材としての増粘性混和剤粉末（Ｖｔ）は、第１の粉体と第２の粉体とからなる。第１の粉体は、カチオン性界面活性剤から選ばれる第１の水溶性低分子化合物の粉体や、第１の水溶性低分子化合物を含む液体を乾燥させたことにより形成された第１の水溶性低分子化合物の粉体を用いた。第２の粉体は、アニオン性芳香族化合物から選ばれる第２の水溶性低分子化合物の粉体や、第２の水溶性低分子化合物を含む液体を乾燥させたことにより形成された第２の水溶性低分子化合物の粉体を用いた。セメント混和剤粉末（ＳＰ）は、増粘性混和剤粉末（Ｖｔ）と相溶性に優れたカルボキシル基含有ポリエーテル系減水剤粉末を用いた。セメント（Ｃ）と膨張材粉末（ＣＳＡ）とにより結合材（Ｂ）が形成される。
第１の水溶性低分子化合物としては、４級アンモニウム塩型カチオン性界面活性剤が好ましく、特に、アルキルアンモニウム塩を主成分とする添加剤が好ましい。また、第２の水溶性低分子化合物としては、芳香環を有するスルフォン酸塩が好ましく、特に、アルキルアリルスルフォン酸塩を主成分とする添加剤が好ましい。セメント（Ｃ）は、石灰石・粘土・酸化鉄などを原料とした普通ポルトランドセメント，早強ポルトランドセメント，中庸熱ポルトランドセメント，白色ポルトランドセメントなどのポルトランドセメントや、高炉セメント，フライアッシュセメント，シリカセメントなどの混合セメントを用いる。細骨材（Ｓ）は、川砂から得られた珪砂などを用いる。膨張材粉末（ＣＳＡ）は、石灰複合系膨張材粉末を用いる。消泡剤粉末（Ｅ）は、シリコン系の消泡剤粉末を用いる。消泡剤粉末（Ｅ）は、混練の際に泡が発生してモルタルの空気量が多くなって強度の低下や比重の減少等が起こることを防止するために、用いる方が好ましい。 The thickening admixture powder (Vt) as the thickening material is composed of a first powder and a second powder. The first powder is formed by drying a powder of a first water-soluble low-molecular compound selected from cationic surfactants or a liquid containing the first water-soluble low-molecular compound. The water-soluble low molecular weight compound powder was used. The second powder is formed by drying a powder of a second water-soluble low molecular compound selected from anionic aromatic compounds or a liquid containing the second water-soluble low molecular compound. The water-soluble low molecular weight compound powder was used. As the cement admixture powder (SP), a carboxyl group-containing polyether water reducing agent powder excellent in compatibility with the thickening admixture powder (Vt) was used. The binder (B) is formed by the cement (C) and the expansion material powder (CSA).
As the first water-soluble low molecular weight compound, a quaternary ammonium salt type cationic surfactant is preferable, and an additive mainly composed of an alkyl ammonium salt is particularly preferable. The second water-soluble low molecular weight compound is preferably a sulfonate having an aromatic ring, and particularly preferably an additive having an alkylallyl sulfonate as a main component. Cement (C) includes ordinary Portland cement, early-strength Portland cement, medium-heated Portland cement, white Portland cement such as limestone, clay and iron oxide, blast furnace cement, fly ash cement, silica cement, etc. Use mixed cement. As the fine aggregate (S), silica sand or the like obtained from river sand is used. The expansion material powder (CSA) uses a lime composite expansion material powder. As the defoamer powder (E), a silicon-based defoamer powder is used. The defoamer powder (E) is preferably used in order to prevent bubbles from being generated during kneading and an increase in the amount of air in the mortar, resulting in a decrease in strength and a decrease in specific gravity.

最良の形態１１に示したモルタルを充填材として使用した場合でも、最良の形態１で述べたような、内径５ｃｍ、長さ１０ｃｍの円筒を平面に直立させた状態で円筒内に充填された後、円筒が引き上げられてから５分後に平面上に円状に広がった充填材の円状の径の平均が２５０ｍｍ±２０ｍｍである流動特性を有した充填材を使用した場合と同様の効果が得られる。   Even when the mortar shown in the best form 11 is used as a filler, after filling the cylinder in the state where the cylinder having an inner diameter of 5 cm and a length of 10 cm is upright on the plane as described in the best form 1 The same effect as when using a filler having a flow characteristic in which the average of the circular diameter of the filler spread circularly on the plane 5 minutes after the cylinder is pulled up is 250 mm ± 20 mm is obtained. It is done.

尚、先行コンクリート９５ａ；９５ｂの注入時に使用するホッパー２Ａ，２と、充填材の充填時に使用するホッパー２Ａ，２とを別々に用意しておいて、ホッパー２Ａ，２を取り替えることにより、充填材と先行コンクリート９５ａ；９５ｂとが混合することを防止できる。   It should be noted that the hoppers 2A, 2 used when injecting the preceding concrete 95a; 95b and the hoppers 2A, 2 used when filling the filler are prepared separately, and the hoppers 2A, 2 are replaced, thereby replacing the filler. And the preceding concrete 95a; 95b can be prevented from mixing.

充填装置の断面図（最良の形態１）。Sectional drawing of a filling apparatus (best form 1). 充填材のフロー試験を示す図（最良の形態１）。The figure which shows the flow test of a filler (best form 1). フロー試験を行った充填材の流動特性を示す図。（最良の形態１）。The figure which shows the flow characteristic of the filler which performed the flow test. (Best Mode 1). 充填材の組成を示す図。（最良の形態１）。The figure which shows the composition of a filler. (Best Mode 1). 充填装置の充填材の充填を示す図（最良の形態１）。The figure which shows filling with the filler of a filling apparatus (best form 1). 充填装置の断面図（最良の形態２）。Sectional drawing (best form 2) of a filling apparatus. 充填装置の要部拡大図（最良の形態２）。The principal part enlarged view of a filling apparatus (best form 2). 充填装置の斜視図（最良の形態２）。The perspective view of a filling apparatus (best form 2). ホッパーに打設管を取付けた図（最良の形態３）。The figure which attached the casting pipe to the hopper (the best form 3). ホッパーに伸縮管を取付けた図（最良の形態４）。The figure which attached the expansion-contraction tube to the hopper (best form 4). 伸縮管の下端部に重りを備えた構成を示す図（最良の形態５）。The figure which shows the structure provided with the weight in the lower end part of an expansion-contraction tube (best form 5). ベースプレート上に余剰充填材収容容器を備えた構成を示す図（最良の形態７）。The figure which shows the structure provided with the surplus filler storage container on the baseplate (best form 7). 充填材として使用するモルタルを組成する使用材料の詳細を示す表（最良の形態１１）。The table | surface which shows the detail of the use material which comprises the mortar used as a filler (the best form 11). 充填材として使用するモルタルのＳＰ使用量、Ｖｔ使用量、水結合材比、単位水量の適正範囲を示す表（最良の形態１１）。The table | surface which shows the appropriate range of SP usage-amount of mortar used as a filler, Vt usage-amount, a water binder ratio, and unit water amount (the best form 11). 充填材として使用するモルタルの評価試験での評価項目、試験方法、評価値を示す表（最良の形態１１）。The table | surface which shows the evaluation item, the test method, and evaluation value in the evaluation test of the mortar used as a filler (best form 11). 充填材充填用空間に充填される充填材が面状に充填された状態を示す図（従来）。The figure which shows the state with which the filler with which the filler filling space is filled is planar (conventional).

符号の説明Explanation of symbols

２４ 漏斗部、６９ 充填材充填用空間、９０ ベースプレート、
９２ ベースプレートの下面、９３ 注入孔、
９５ａ 先行下部コンクリート（先行コンクリート）、
９５ｂ 先行上部コンクリート（先行コンクリート）、１０５ 型枠。 24 funnel, 69 filling space, 90 base plate,
92 bottom surface of base plate, 93 injection hole,
95a Leading lower concrete (preceding concrete),
95b Preceding upper concrete (preceding concrete), 105 formwork.

Claims (3)

免震基礎を構築する型枠を配置するとともに、注入孔を有するベースプレートを上記型枠で規定される空間の上端部に設置し、この型枠内に先行コンクリートを打設して先行コンクリートの上面とベースプレートの下面との間に充填材充填用空間を設けた後、充填装置を用いて、ベースプレートの注入孔を介して充填材充填用空間に充填材を充填する充填方法において、
充填装置は、充填材充填用空間の容積よりも大きい容積を有したホッパーと、開閉装置とを備え、
ホッパーは、円錐状筒壁部と当該円錐状筒壁部の円錐の頂点部に形成された他端開口と連通する円筒部とを備え、
円筒部の他端開口により形成された充填材排出口の周縁には、ベースプレートの上面に接触する設置板を備え、
開閉装置が、円筒部の筒の内側により形成された内部通路を開閉可能に設けられており、
充填装置を用いて充填材充填用空間に充填材を充填する際には、ホッパーの設置板の下面をベースプレートの上面に接触させ、かつ、充填材排出口とベースプレートの注入孔とを合わせ、開閉装置で円筒部の内部通路を閉じておいて、ホッパー内に充填材充填用空間に充填される充填材の量よりも多い量の充填材を貯留し、充填材内の空気が脱気されるのに必要な所定時間を経過した場合に開閉装置を開けて、ホッパー内から充填材充填用空間内に充填材を連続して充填することにより、上記注入孔の近傍において先行コンクリートの上面からベースプレートの下面まで充填材を盛り上げた後、充填材が同心円状に外側に拡大しながら充填材充填用空間に充填されるようにしたことを特徴とする免震装置のベースプレート下部への充填材の充填方法。 Place the formwork to build the seismic isolation foundation, install the base plate with the injection hole at the upper end of the space defined by the above formwork, place the preceding concrete in this formwork, and place the upper surface of the preceding concrete In the filling method of filling the filler filling space through the injection hole of the base plate using the filling device after providing the filler filling space between the base plate and the lower surface of the base plate,
The filling device includes a hopper having a volume larger than the volume of the filler filling space, and an opening / closing device.
The hopper includes a conical cylindrical wall portion and a cylindrical portion communicating with the other end opening formed at the apex of the conical cylindrical wall portion,
At the periphery of the filler discharge port formed by the other end opening of the cylindrical portion, an installation plate that contacts the upper surface of the base plate is provided.
An opening and closing device is provided so as to be able to open and close an internal passage formed by the inside of the cylinder of the cylindrical portion,
When filling the filler filling space using the filling device, the lower surface of the hopper installation plate is brought into contact with the upper surface of the base plate, and the filler outlet and the injection hole of the base plate are aligned and opened and closed. With the apparatus, the internal passage of the cylindrical portion is closed, a larger amount of filler than the amount of filler filled in the filler filling space is stored in the hopper, and the air in the filler is deaerated. The base plate is opened from the upper surface of the preceding concrete in the vicinity of the injection hole by opening the opening / closing device when a predetermined time required for the operation has elapsed and continuously filling the filler into the filler filling space from the hopper. After filling up the filler to the lower surface of the base, the filler is filled in the space for filling the filler while concentrically expanding to the outside. Method. 上記充填材として、内径５ｃｍ、長さ１０ｃｍの円筒を平面に直立させた状態で円筒内に充填された後、円筒が引き上げられてから５分後に平面上に円状に広がった充填材の円状の径の平均が２５０ｍｍ±２０ｍｍである流動特性を有した充填材を用いたことを特徴とする請求項１に記載の免震装置のベースプレート下部への充填材の充填方法。 As the filler, a cylinder having an inner diameter of 5 cm and a length of 10 cm is filled in the cylinder in an upright plane, and then the filler is expanded circularly on the plane 5 minutes after the cylinder is pulled up. The method for filling a filler in a lower part of a base plate of a seismic isolation device according to claim 1, wherein a filler having a flow characteristic having an average shape diameter of 250 mm ± 20 mm is used. 上記充填材として、セメントと膨張材粉末とから成る結合材と、カチオン性界面活性剤から選ばれる第１の水溶性低分子化合物から成る第１の粉体とアニオン性芳香族化合物から選ばれる第２の水溶性低分子化合物から成る第２の粉体とから成る増粘材と、細骨材と、セメント混和剤粉末と、水とが混ぜ合わされて形成され、単位水量が３８０〜４４０ｋｇ／ｍ3、水と結合材との比が３４．０〜６０．０％、第１の粉体の量と第２の粉体の量との和が２．５０〜４．００ｋｇ／ｍ3、セメント混和剤粉末の量が０．９０〜２．００ｋｇ／ｍ3であるモルタルを用いたことを特徴とする請求項１に記載の免震装置のベースプレート下部への充填材の充填方法。 As the filler, a binder composed of cement and an expanding material powder, a first powder composed of a first water-soluble low-molecular compound selected from cationic surfactants, and an anionic aromatic compound selected from It is formed by mixing a thickener consisting of a second powder composed of two water-soluble low molecular weight compounds, a fine aggregate, a cement admixture powder, and water, with a unit water amount of 380 to 440 kg / m. 3 , the ratio of water to binder is 34.0 to 60.0%, the sum of the amount of the first powder and the amount of the second powder is 2.50 to 4.00 kg / m 3 , cement filling method for filling material to the base plate lower part of the seismic isolation device according to claim 1 in which the amount of admixture powder is characterized by using a mortar is 0.90~2.00kg / m 3.
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