JP2002371550A - Construction method of soil cement composite precast pile - Google Patents
Construction method of soil cement composite precast pileInfo
- Publication number
- JP2002371550A JP2002371550A JP2001182896A JP2001182896A JP2002371550A JP 2002371550 A JP2002371550 A JP 2002371550A JP 2001182896 A JP2001182896 A JP 2001182896A JP 2001182896 A JP2001182896 A JP 2001182896A JP 2002371550 A JP2002371550 A JP 2002371550A
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- Prior art keywords
- pile
- soil cement
- diameter
- soil
- spiral
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、土木，建築構造物
の基礎杭に関し、特に、ソイルセメント柱体の中にらせ
ん状羽根を有する既製杭を挿入してなるソイルセメント
合成既製杭の施工方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foundation pile for civil engineering and building structures, and more particularly to a method for constructing a soil cement composite ready pile by inserting a ready pile having spiral blades into a soil cement column. It is about.
【０００２】[0002]
【従来の技術】従来、地盤改良によって造成されたソイ
ルセメント柱体の中に、補強部材としての鋼管等を挿入
して杭とする工法がある。このような工法の代表的な例
としては、特開昭60-238515号公報に開示された技術
（第１公知例）や、特許第2731806号の技術（第２公知
例）がある。第１公知例の技術は、土質固化ミルクを充
填しながら杭埋設孔を掘削し、杭埋設孔の下端部を拡大
掘削した後、少なくとも下端部にらせん翼を設けた基礎
杭を回転させながら貫入させるものである。2. Description of the Related Art Conventionally, there has been a method of forming a pile by inserting a steel pipe or the like as a reinforcing member into a soil cement column formed by soil improvement. Representative examples of such a method include a technique disclosed in Japanese Patent Application Laid-Open No. 60-238515 (first known example) and a technique disclosed in Japanese Patent No. 2731806 (second known example). The technique of the first known example is to excavate a pile burial hole while filling the soil with solidified milk, expand and excavate the lower end of the pile burial hole, and then penetrate while rotating a foundation pile provided with a spiral wing at least at the lower end. It is to let.
【０００３】また第２公知例の技術は、地盤とセメント
ミルク等の固化材を攪拌して削孔内を所定深度までソイ
ルセメント化し、削孔底部を、底まで注入した固化材よ
りも固化後の圧縮強度が大きくなる固化材で充満させ、
掘削・攪拌ロッドを引き上げて、内周面の下部に固化材
との付着力を向上させるための突起を有し且つ少なくと
も１枚のらせん翼が下端部に設けられている鋼管をソイ
ルセメント化した削孔内に挿入するものである。[0003] Further, the technique of the second known example is to agitate the solidified material such as cement milk and the like to make the inside of the drill hole soil-cement to a predetermined depth, and to solidify the bottom of the drilled hole more than the solidified material injected to the bottom. Filled with solidified material that increases the compressive strength of
The excavation / stirring rod was pulled up, and a steel pipe having a projection at the lower part of the inner peripheral surface for improving the adhesive force with the solidified material and having at least one spiral wing provided at the lower end was made into soil cement. It is to be inserted into the hole.
【０００４】[0004]
【発明が解決しようとする課題】上記公知例の技術で
は、掘削孔に土質固化ミルクを充填してのち、基礎杭を
貫入させるので、掘削時のみならず杭沈設時に掘削穴か
ら掘削土砂が排出し多くの産業廃棄物を生ずる問題があ
った。In the technique of the above-mentioned known example, the excavation hole is filled with soil-solidified milk, and then the foundation pile is penetrated. There is a problem that generates a lot of industrial waste.
【０００５】[0005]
【課題を解決するための手段】本発明は下記の通りであ
る。 １） らせん状羽根付既製杭を、機械式深層混合処理工
法によって造成されたソイルセメント柱体にねじり込み
貫入するソイルセメント合成既製杭の施工方法であっ
て、らせん状羽根付既製杭が杭頭部近傍および下端部近
傍にらせん状羽根を、さらにそれらの中間にも少なくと
も１枚のらせん状羽根を有し、ソイルセメント柱体上端
部と地表面の間に、ソイルセメント柱体直径の半分の深
さ以上の非造成層を設けることを特徴とするソイルセメ
ント合成既製杭の施工方法。The present invention is as follows. 1) A method for constructing a prefabricated pile with a spiral blade, in which a prefabricated pile with a spiral blade is screwed and penetrated into a soil-cement column built by a mechanical deep mixing method. Near the bottom and near the lower end, and at least one spiral blade in the middle between them, between the top of the soil cement column and the ground surface, half the diameter of the soil cement column diameter A method for constructing a prefabricated soil cement composite pile, comprising providing a non-formation layer having a depth equal to or greater than a depth.
【０００６】２） らせん状羽根付既製杭本体の直径を
ｄ、最大径を有するらせん状羽根の直径をＤ、ソイルセ
メント柱体の直径をＤｃとしたとき、前記最大径を有す
るらせん状羽根の直径Ｄの範囲が既製杭本体の直径ｄの
１．５倍乃至３．０倍であり、ソイルセメント柱体の直
径Ｄｃの範囲が最大径を有するらせん状羽根の直径Ｄの
１．２倍乃至２．５倍であることを特徴とする１）に記
載のソイルセメント合成既製杭の施工方法。2) When the diameter of the prefabricated pile body with spiral blades is d, the diameter of the spiral blade having the maximum diameter is D, and the diameter of the soil cement column is Dc, the diameter of the spiral blade having the maximum diameter is as follows. The range of the diameter D is 1.5 to 3.0 times the diameter d of the ready-made pile body, and the range of the diameter Dc of the soil cement column is 1.2 to 300 times the diameter D of the spiral blade having the maximum diameter. The method for constructing a prefabricated soil cement composite pile according to 1), wherein the pile is 2.5 times.
【０００７】[0007]
【発明の実施の形態】以下、図により本発明の施工方法
の好ましい実施形態について説明する。図１は本実施例
に係る施工方法の施工工程の概要を示す地盤の断面図で
ある。先ず、同図（ａ）に示すように、地盤１に於ける
目的の位置にソイルセメント柱体造成装置５を設置し、
機械式深層混合処理工法によってソイルセメント柱体３
を造成する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the construction method of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view of the ground showing an outline of a construction process of a construction method according to the present embodiment. First, as shown in FIG. 1A, a soil cement column forming device 5 is installed at a target position on the ground 1,
Soil cement column 3 by mechanical deep mixing method
Create
【０００８】ここで、機械式深層混合処理工法とは、セ
メント或いはセメントを主成分とした固化材と水を混練
して作製したスラリーを地盤中に注入しながら、掘削翼
と攪拌翼を備えた攪拌混合装置により、地盤とスラリー
を機械的に攪拌混合してソイルセメント柱体を造成する
地盤改良工法のことをいうものである。柱体造成装置５
を地中に貫入させるにあたり、地表部分にソイルセメン
ト柱体３を造成しない所定深さの非造成層６を設け、こ
こではセメントミルクや水も使用しない。柱体造成装置
５が非造成層６以上の深さに達したらソイルセメント柱
体２の造成を開始する。同図（ｂ）に示すように、ソイ
ルセメント柱体３を完成させるにあたり柱体造成装置５
を引き上げるとき地表面に近い非造成層６では回転やセ
メントミルク注入を止めて引き抜く。[0008] Here, the mechanical deep mixing method refers to a method in which a slurry prepared by kneading cement or a solidifying material containing cement as a main component and water is injected into the ground while excavating blades and stirring blades are provided. This is a ground improvement method in which soil and a slurry are mechanically stirred and mixed by a stirring and mixing device to form a soil cement column. Column building device 5
In order to penetrate into the ground, a non-formation layer 6 having a predetermined depth that does not form the soil cement pillar 3 is provided on the surface of the ground, and no cement milk or water is used here. When the column forming device 5 reaches the depth of the non-formed layer 6 or more, the formation of the soil cement column 2 is started. As shown in FIG. 2B, in completing the soil cement column 3, a column forming device 5 is used.
In the non-formation layer 6 close to the ground surface, the rotation and the injection of the cement milk are stopped when the water is pulled out.
【０００９】同図（ｃ）に示すように、所定位置に複数
のらせん状羽根４を設けたらせん状羽根付既製杭（以
下、単に「既製杭」という）２を回転させつつ未硬化の
ソイルセメント柱体３にねじり込み貫入させる。既製杭
２をソイルセメント柱体３に貫入させて両者を一体化す
ることよって、同図（ｄ）に示すようなソイルセメント
合成既製杭が造成される。本発明で用いられる既製杭と
しては、鋼管杭、コンクリート杭等が挙げられる。強度
の点で鋼管杭が特に好ましい。As shown in FIG. 1C, a plurality of spiral blades 4 are provided at predetermined positions, and an uncured soil is prepared by rotating a spiral pile-mounted ready pile (hereinafter simply referred to as a "prefabricated pile") 2. The cement column 3 is screwed and penetrated. By making the ready-made pile 2 penetrate into the soil cement pillar 3 and integrating them, a soil-cement composite ready-made pile as shown in FIG. Examples of the ready-made pile used in the present invention include a steel pipe pile and a concrete pile. Steel pipe piles are particularly preferred in terms of strength.
【００１０】既製杭２は、杭頭部近傍および下端部近傍
にらせん状羽根を、さらにそれらの中間にも少なくとも
１枚のらせん状羽根を有している。従って、既製杭２に
は少なくとも３枚のらせん状羽根４が設けられることと
なる。コンクリート杭の場合には、金属製のバンド等を
介してらせん状羽根を取り付けることが好ましい。ま
た、らせん状羽根の直径は、同一でなくてもかまわな
い。ここで、杭頭部近傍とは、既製杭２が接続されてい
るフーチング、或いは布基礎の底面からソイルセメント
柱体３の直径Ｄｃと等しい範囲内をいうものとする。The ready-made pile 2 has spiral blades near the pile head and near the lower end, and at least one spiral blade between them. Therefore, at least three spiral blades 4 are provided on the ready-made pile 2. In the case of a concrete pile, it is preferable to attach a spiral blade via a metal band or the like. The diameters of the spiral blades need not be the same. Here, the vicinity of the pile head refers to a footing to which the ready-made pile 2 is connected, or an area within the range equal to the diameter Dc of the soil cement column 3 from the bottom surface of the cloth foundation.
【００１１】また杭下端部近傍とは、杭下端部先端から
ソイルセメント柱体３の直径Ｄｃと等しい範囲内をいう
ものとする。一般に土木・建築構造物の基礎杭には、杭
頭部に於いて最も大きな鉛直荷重が作用する。このた
め、既製杭２の杭頭部近傍にらせん状羽根４を有してい
ると、らせん状羽根４の押さえ効果により該らせん状羽
根４の下方のソイルセメント柱体３が圧縮され、鉛直荷
重に対して既製杭３のみならず、ソイルセメント柱体３
と共に抵抗することが可能となる。更に、水平荷重に対
しても、らせん状羽根４の押さえ効果と、ソイルセメン
ト柱体３による拘束効果とにより水平剛性を高めること
が可能となる。[0011] The vicinity of the lower end of the pile means within a range equal to the diameter Dc of the soil cement column 3 from the tip of the lower end of the pile. Generally, the largest vertical load acts on the foundation pile of civil engineering and building structures at the pile head. For this reason, if the prefabricated pile 2 has the spiral blades 4 near the pile head, the soil cement column 3 below the spiral blades 4 is compressed by the pressing effect of the spiral blades 4, and the vertical load is increased. Not only ready-made piles 3 but also soil cement columns 3
Together with it. Furthermore, even for a horizontal load, the horizontal rigidity can be increased by the pressing effect of the spiral blade 4 and the restraining effect of the soil cement column 3.
【００１２】従って、本実施例に係るソイルセメント合
成既製杭にあっては、既製杭２の杭頭部近傍及び下端部
近傍に夫々らせん状羽根４を設けると共に、両者の間に
も少なくとも１枚のらせん状羽根４を設けているため、
荷重が各らせん状羽根４から分散し、全体の鉛直支持荷
重を大きくすることが可能である。尚、既製杭２の杭頭
部の近傍及び下端部近傍に設けたらせん状羽根４の間に
於けるらせん状羽根４の設置間隔は特に限定するもので
はなく、１ｍ〜３ｍ程度で適宜設定することが好まし
い。Accordingly, in the prefabricated soil cement composite pile according to the present embodiment, the spiral blades 4 are provided near the pile head and the lower end of the prefabricated pile 2, respectively, and at least one wing is provided between the two. Since the spiral blade 4 is provided,
The load is dispersed from each helical blade 4, and the overall vertical supporting load can be increased. In addition, the installation interval of the spiral blades 4 between the spiral blades 4 provided in the vicinity of the pile head and the lower end portion of the ready-made pile 2 is not particularly limited, and is appropriately set to about 1 m to 3 m. Is preferred.
【００１３】尚、本実施例では、既製杭２の下端部近
傍，杭頭部近傍以外に２枚のらせん状羽根４が設けられ
ており、全体では４枚のらせん状羽根４が設けられてい
る。本発明では非造成層６が存在することによりこれが
蓋となり、掘削時に掘削土砂がほとんど地上へ排出しな
い。また、杭埋設も回転による埋設であるから地盤を乱
すことなく羽根のピッチで貫入するので、非造成層は蓋
として十分機能し、杭貫入によって土砂が地上へ排出さ
れることはほとんどない。In the present embodiment, two spiral blades 4 are provided in the vicinity of the lower end of the ready-made pile 2 and near the pile head, and four spiral blades 4 are provided as a whole. I have. In the present invention, the existence of the non-formation layer 6 serves as a lid, and excavated earth and sand hardly discharges to the ground during excavation. In addition, since piles are also buried by rotation, they penetrate at the pitch of the blades without disturbing the ground, so that the non-formation layer functions sufficiently as a lid, and the piles hardly discharge earth and sand to the ground.
【００１４】非造成層６の厚みはソイルセメント柱体の
外径の半分以上であり、好ましくは外径以上である。ま
た既製杭２は、単体で用いる場合もあるが、必ずしも単
体での使用に限定するものではなく、長手方向に連続さ
せて溶接或いはネジ込み等の手段によって複数本を接続
した継杭を用いても良い。上記の如く構成された既製杭
２では、下端部が底板によって閉塞されていれば既製杭
２がソイルセメント柱体３に貫入するのに従って貫入し
た体積分のソイルセメントが加圧され、ソイルセメント
の強度を増加させることが可能である。The thickness of the non-formation layer 6 is at least half of the outer diameter of the soil cement column, preferably at least the outer diameter. In addition, the ready-made pile 2 may be used alone, but is not necessarily limited to the use of a single body, and a plurality of piles connected to each other by means such as welding or screwing in the longitudinal direction are used. Is also good. In the prefabricated pile 2 configured as described above, if the lower end is closed by the bottom plate, as the prefabricated pile 2 penetrates the soil cement column 3, the volume of soil cement penetrated is pressurized, and It is possible to increase the strength.
【００１５】また、空洞状態である既製杭２内部に、良
質なセメントミルク、モルタル、コンクリートを充填す
ることも可能であり、既製杭２の内部に充填物を充填す
ると、既製杭２の有効断面積を大きくすると共に断面形
状の変形を防止することが可能である。この結果、ソイ
ルセメント合成杭が負担し得る鉛直荷重や水平荷重をよ
り大きくすることができる。It is also possible to fill the hollow prefabricated pile 2 with high quality cement milk, mortar and concrete. When the filling is filled inside the prefabricated pile 2, the effective cutting of the prefabricated pile 2 can be achieved. It is possible to increase the area and prevent deformation of the cross-sectional shape. As a result, the vertical load and the horizontal load that the soil cement composite pile can bear can be further increased.
【００１６】図２は、ソイルセメント合成既製杭に於け
るソイルセメント柱体３と既製杭２との関係を説明する
図である。ソイルセメント柱体３と既製杭２との一体性
や、鉛直荷重の分散性を効率的にするためには、図２に
示すように、既製杭２の本体の直径をｄとし、最大径を
有するらせん状羽根４の直径をＤとし、ソイルセメント
柱体３の直径をＤｃとしたとき、最大径を有するらせん
状羽根４の直径Ｄは、荷重の分散および既製杭とソイル
セメントの一体効果の観点から既製杭２の直径ｄの１．
５倍以上が好ましく、らせん状羽根４に発生する曲げ応
力を抑制する観点から３．０倍以下の範囲が好ましい。
ソイルセメント柱体３と既製杭２との一体性や鉛直荷重
の分散性を効率的にするには、ソイルセメント柱体３の
直径Ｄｃを最大径を有するらせん状羽根４の直径Ｄの
１．２倍〜２．５倍の範囲にすることが好ましく、１．
５倍〜２．５倍の範囲にすることがより好ましい。FIG. 2 is a diagram for explaining the relationship between the soil cement column 3 and the ready-made pile 2 in the soil-cement composite ready-made pile. In order to efficiently integrate the soil cement column 3 with the ready-made pile 2 and to disperse the vertical load efficiently, as shown in FIG. Assuming that the diameter of the spiral blade 4 is D and the diameter of the soil cement column 3 is Dc, the diameter D of the spiral blade 4 having the largest diameter is the dispersion of the load and the effect of integrating the ready-made pile and the soil cement. From the point of view, the diameter d of the ready-made pile 2 is 1.
The range is preferably 5 times or more, and more preferably 3.0 times or less from the viewpoint of suppressing the bending stress generated in the spiral blade 4.
In order to efficiently integrate the soil cement column 3 with the ready-made pile 2 and to disperse the vertical load efficiently, the diameter Dc of the soil cement column 3 is set equal to the diameter D of the spiral blade 4 having the maximum diameter. Preferably, the range is 2 to 2.5 times.
More preferably, the range is 5 times to 2.5 times.
【００１７】既製杭２のソイルセメント柱体３への貫入
速度をＶｐ（ｍ／分）、既製杭２のねじり込み時の回転
数をＲｐ（回／分）、らせん状羽根４のらせんピッチを
ｔｐ（ｍ）としたとき、既製杭２をソイルセメント柱体
２に貫入させる方法としては既製杭２が１回転する間に
らせん状羽根４のピッチ分、或いはピッチ分以下だけ貫
入させる方法、即ち、既製杭２のソイルセメント柱体２
への貫入速度Ｖｐを、Ｖｐ≦Ｒｐ・ｔｐとすることが望
ましい。既製杭２の貫入速度を前記の如く設定すること
で、既製杭２とソイルセメント柱体３との一体性を効果
的に確保することができる。また、本発明においてソイ
ルセメント柱体と既製杭の頭部は一致させる必要が無
く、既製杭頭部はソイルセメント柱体から飛び出て、地
表付近まで出てきてもかまわない。The penetration speed of the ready-made pile 2 into the soil cement column 3 is Vp (m / min), the number of revolutions when the ready-made pile 2 is screwed is Rp (times / min), and the spiral pitch of the spiral blade 4 is When tp (m) is used, a method for penetrating the ready-made pile 2 into the soil cement column 2 is a method of penetrating the spiral-shaped blade 4 by one pitch or less than the pitch while the ready-made pile 2 makes one rotation. , Ready-made pile 2 of soil cement column 2
It is desirable to set the penetration speed Vp to Vp ≦ Rp · tp. By setting the penetration speed of the ready-made pile 2 as described above, the integrity of the ready-made pile 2 and the soil cement column 3 can be effectively secured. Further, in the present invention, it is not necessary to match the head of the soil cement pillar with the head of the ready-made pile, and the head of the ready-made pile may protrude from the soil cement pillar and come out near the ground surface.
【００１８】[0018]
【発明の効果】以上詳細に説明したように本発明に係る
ソイルセメント合成既製杭の施工方法では、ソイルセメ
ント柱体と既製杭とが一体化し、らせん状羽根から滑ら
かに荷重が伝達されるため、地盤との間で大きな摩擦力
を発揮することができ、さらに掘削時、杭沈設時の掘削
土砂の排出を少なくすることができる。またソイルセメ
ント柱体に貫入される既製杭は下端部が底板によって閉
塞されている場合、該既製杭がソイルセメント柱体に貫
入した体積分、ソイルセメントを加圧し、これによりソ
イルセメントの強度を向上させることができ、また既製
杭の内部に形成された中空部にセメントミルク，モルタ
ル，コンクリートを充填することで、鉛直耐力のみなら
ず、水平耐力をも向上させることが出来る。As described in detail above, in the method for constructing a soil cement composite ready-made pile according to the present invention, since the soil cement column and the ready-made pile are integrated, the load is smoothly transmitted from the spiral blade. Therefore, a large frictional force can be exerted with the ground, and the discharge of excavated earth and sand at the time of excavation and pile setting can be reduced. When the lower end of the ready-made pile penetrated into the soil cement column is closed by the bottom plate, the volume of the ready-made pile penetrated the soil cement column, pressurizing the soil cement, thereby reducing the strength of the soil cement. By filling the hollow portion formed inside the ready-made pile with cement milk, mortar, or concrete, not only the vertical strength but also the horizontal strength can be improved.
【図１】本実施例に係る施工方法の施工工程の概要を示
す地盤の断面図である。FIG. 1 is a sectional view of a ground showing an outline of a construction process of a construction method according to the present embodiment.
【図２】ソイルセメント合成既製杭に於けるソイルセメ
ント柱体３と既製杭２との関係を説明する図である。FIG. 2 is a diagram for explaining the relationship between a soil cement column 3 and a ready-made pile 2 in a soil-cement composite ready-made pile.
Ｄ 最大径を有するらせん
状羽根４の直径 ｄ 既製杭の本体の直径 Ｄｃ ソイルセメント柱体の
直径 １ 地盤 ２ 既製杭 ３ ソイルセメント柱体 ４ らせん状羽根 ５ ソイルセメント柱体造
成装置 ６ 非造成層D Diameter of spiral blade 4 having the largest diameter d Diameter of main body of ready-made pile Dc Diameter of soil cement column 1 Ground 2 Pre-made pile 3 Soil cement column 4 Spiral blade 5 Soil cement column forming device 6 Non-stratified layer
Claims (2)
合処理工法によって造成されたソイルセメント柱体にね
じり込み貫入するソイルセメント合成既製杭の施工方法
であって、らせん状羽根付既製杭が杭頭部近傍および下
端部近傍にらせん状羽根を、さらにそれらの中間にも少
なくとも１枚のらせん状羽根を有し、ソイルセメント柱
体上端部と地表面の間に、ソイルセメント柱体直径の半
分の深さ以上の非造成層を設けることを特徴とするソイ
ルセメント合成既製杭の施工方法。The present invention relates to a method for constructing a prefabricated pile with a spiral-cement, in which a prefabricated pile with a spiral-shaped blade is screwed into a soil-cement column formed by a mechanical deep mixing method and penetrates. Has a spiral blade near the head and lower end of the pile, and at least one spiral blade in the middle between them, and has a diameter of the soil cement column between the upper end of the soil cement column and the ground surface. A method of constructing a prefabricated soil cement composite pile, comprising providing a non-creation layer having a depth of half or more of the pile.
最大径を有するらせん状羽根の直径をＤ、ソイルセメン
ト柱体の直径をＤｃとしたとき、前記最大径を有するら
せん状羽根の直径Ｄの範囲が既製杭本体の直径ｄの１．
５倍乃至３．０倍であり、ソイルセメント柱体の直径Ｄ
ｃの範囲が最大径を有するらせん状羽根の直径Ｄの１．
２倍乃至２．５倍であることを特徴とする請求項１に記
載のソイルセメント合成既製杭の施工方法。2. The diameter of a prefabricated pile body with spiral blades is d,
Assuming that the diameter of the spiral blade having the maximum diameter is D and the diameter of the soil cement column is Dc, the range of the diameter D of the spiral blade having the maximum diameter is 1.
5 to 3.0 times, the diameter D of the soil cement column
The range of c is the diameter D of the spiral blade having the largest diameter.
The method according to claim 1, wherein the pile is 2 to 2.5 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001182896A JP2002371550A (en) | 2001-06-18 | 2001-06-18 | Construction method of soil cement composite precast pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001182896A JP2002371550A (en) | 2001-06-18 | 2001-06-18 | Construction method of soil cement composite precast pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002371550A true JP2002371550A (en) | 2002-12-26 |
Family
ID=19022913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001182896A Pending JP2002371550A (en) | 2001-06-18 | 2001-06-18 | Construction method of soil cement composite precast pile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002371550A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104863146A (en) * | 2015-06-04 | 2015-08-26 | 邓亚光 | Composite construction spraying and mixing method for high-strength quick-setting cement soil mass |
| CN104947655A (en) * | 2015-05-14 | 2015-09-30 | 中国能源建设集团广东电力工程局有限公司 | Construction technology and equipment for cement mixing pile |
| CN112942313A (en) * | 2021-01-26 | 2021-06-11 | 上海兴庚基础工程有限公司 | Cement-mixed soil-implanted prefabricated reinforced concrete pile enclosure wall and construction method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2731806B2 (en) * | 1990-11-20 | 1998-03-25 | 新日本製鐵株式会社 | Construction method of soil cement composite pile |
| JP2001081770A (en) * | 1999-09-16 | 2001-03-27 | Toyo Constr Co Ltd | Pile foundation work |
-
2001
- 2001-06-18 JP JP2001182896A patent/JP2002371550A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2731806B2 (en) * | 1990-11-20 | 1998-03-25 | 新日本製鐵株式会社 | Construction method of soil cement composite pile |
| JP2001081770A (en) * | 1999-09-16 | 2001-03-27 | Toyo Constr Co Ltd | Pile foundation work |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104947655A (en) * | 2015-05-14 | 2015-09-30 | 中国能源建设集团广东电力工程局有限公司 | Construction technology and equipment for cement mixing pile |
| CN104863146A (en) * | 2015-06-04 | 2015-08-26 | 邓亚光 | Composite construction spraying and mixing method for high-strength quick-setting cement soil mass |
| CN112942313A (en) * | 2021-01-26 | 2021-06-11 | 上海兴庚基础工程有限公司 | Cement-mixed soil-implanted prefabricated reinforced concrete pile enclosure wall and construction method thereof |
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