JP4402543B2 - A guide jig for alignment and a method of longitudinal joining of piles using them. - Google Patents

A guide jig for alignment and a method of longitudinal joining of piles using them. Download PDF

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JP4402543B2
JP4402543B2 JP2004240901A JP2004240901A JP4402543B2 JP 4402543 B2 JP4402543 B2 JP 4402543B2 JP 2004240901 A JP2004240901 A JP 2004240901A JP 2004240901 A JP2004240901 A JP 2004240901A JP 4402543 B2 JP4402543 B2 JP 4402543B2
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pile
guide jig
piles
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晃一 永見
隆 森
扶樹 岡
優任 高木
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Kubota Corp
Nippon Steel Corp
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Nippon Steel Corp
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Description

本発明は、鋼管杭やコンクリートパイル等の杭の縦継ぎ(胴継ぎ)において使用する位置合わせ用のガイド冶具及びそれらを用いた杭の縦継ぎ方法に関するものである。 The present invention relates to jointed method of pile with their guide冶Gu及 beauty for alignment for use in jointed piles, such as steel pipe piles or concrete piles (trunk joint).

杭どうしの縦継ぎは従来一般に溶接により行われてきた。この溶接による縦継ぎは、現場が広い場合は横倒し状態で行われるが、現場が狭い場合は、埋設孔に挿入した杭(下杭)に他の杭(上杭)を突き合わせて溶接している。しかし、溶接による縦継ぎ作業は、高度な技能が要求されるとともに、屋外作業のため天候の影響を受けることから、近頃は溶接によることなく、杭を機械的に接続する方法も提案されている。   Conventionally, vertical connection between piles has been generally performed by welding. Longitudinal joining by welding is performed in a laid-down state when the site is wide, but when the site is small, another pile (upper pile) is butted against the pile inserted in the buried hole (lower pile). . However, since the longitudinal joining work by welding requires high skill and is affected by the weather due to outdoor work, a method of mechanically connecting the piles without using welding has recently been proposed. .

杭を機械的に接続する方法には各種あるが、例えば、外周の縦方向に継手部材を有する杭を縦継ぎで行う場合は、継ぎ合わせる上杭と下杭の軸線上の位置合わせばかりでなく、上杭と下杭の継手部材の位置を合わせるための管周方向の位置合せが必要であり、従来は、上杭の下端部にナイロンスリング等の荷役運搬具を掛けて、上杭を回転させて行っている。   There are various methods for mechanically connecting the piles.For example, when a pile having joint members in the longitudinal direction of the outer periphery is used as a longitudinal joint, not only the alignment of the upper pile and the lower pile on the axis line but also the joint Alignment in the pipe circumferential direction is necessary to align the joint members of the upper pile and lower pile. Conventionally, the upper pile is rotated by hanging a cargo handling equipment such as nylon sling on the lower end of the upper pile. Let me go.

また、上杭と下杭の各接続部外周に、その周方向複数個所に、上下に対向してそれぞれ位置合わせ用の突起体を固着し、他方、上杭に固着された突起体の導入係合溝を設けた位置合わせ用のガイド冶具を形成し、これを、下杭に固着された突起体に嵌着、立設した後、建て込まれた下杭上に、吊上げた上杭を降下して、その突起体を導入係合溝に挿入し、上杭を下杭上に接合させる杭の縦継ぎ方法もある。(特許文献1)   In addition, on the outer periphery of each connection part of the upper pile and the lower pile, fixing protrusions are fixed to each other in a plurality of positions in the circumferential direction so as to face each other, and the protrusions fixed to the upper pile are introduced. After forming a guide jig for alignment with a groove and fitting it to a protrusion fixed to the lower pile and standing it, lower the suspended upper pile on the built-in lower pile Then, there is also a pile longitudinal joining method in which the protrusion is inserted into the introducing engagement groove and the upper pile is joined onto the lower pile. (Patent Document 1)

しかし、この従来の方法では、上杭の設置時に発生する下杭の裏当てリングとの摩擦により、上杭を容易にcm,mm単位で回転させることが困難であるとともに、吊り下げた上杭の揺れも影響するため、位置合わせに多くの労力と時間を要しており、縦継ぎの作業の改善が要望されていた。   However, with this conventional method, it is difficult to rotate the upper pile in units of cm and mm due to friction with the backing ring of the lower pile that is generated when the upper pile is installed, and the suspended upper pile Because of the influence of shaking, much labor and time are required for alignment, and improvement of the longitudinal joining work has been demanded.

また、海工事又は港湾工事の場合、通常、杭は海上輸送となるため1本もので輸送されることが多い。当然、この場合、杭が重量物であるため、杭打ち機、輸送用台船、クレーンなど大型化になりコストが大となる。
そこで、これらの施工機をコンパクトにするため現地での接合方式をとることになる。
また、海が荒れていても施工しなければならない場合があり、その場合は杭の吊り込み、継手嵌合等の作業は作業船からの作業であるため、作業船が揺動するので、上杭と下杭の嵌合が非常に困難であった。
In the case of sea construction or port construction, piles are usually transported by sea, so they are often transported as a single piece. Naturally, in this case, since the pile is heavy, the size of the pile driving machine, the transportation carrier, the crane, etc. is increased and the cost is increased.
Therefore, in order to make these construction machines compact, a local joining method will be adopted.
Even if the sea is rough, it may be necessary to carry out construction.In this case, the work such as hanging the piles and fitting the joints is work from the work ship. It was very difficult to fit the pile and the lower pile.

そこで、杭の縦継ぎ作業において、位置合せを容易にするためにガイド冶具を用いて行う方法が提案されている。この方法は、下杭の端部外周に、複数のガイド部材を締付具により取付けるようにしたものである(特許文献2,3)。しかしながらこの方法でも、各ガイド部材で形成される案内巾が狭いため、この中に接続する杭を吊り込むのは、困難な作業となる。   In view of this, a method has been proposed in which a guide jig is used in order to facilitate alignment in the longitudinal connection work of piles. In this method, a plurality of guide members are attached to the outer periphery of the end portion of the lower pile by a fastening tool (Patent Documents 2 and 3). However, even in this method, since the guide width formed by each guide member is narrow, it is difficult to hang a pile to be connected therein.

また、杭は垂直に建て込まれるものとは限らず、地震時の水平方向の荷重や、港湾の岸壁が船によって受ける衝撃荷重などの水平方向の荷重に対して、斜め杭が用いられる。このような斜め杭における縦継ぎでは、上杭を傾斜した吊り状態で杭の接合を行わねばならないため、その位置合わせが一層困難なことになる。そのため、斜め杭の縦継ぎを容易にするための冶具等の提供が強く求められていた。しかし、このような冶具等についての提案はなされていないのが実情である。   In addition, piles are not necessarily built vertically, but diagonal piles are used for horizontal loads such as horizontal loads during earthquakes and impact loads received by ships on the quay of a port. In such a longitudinal joint in an oblique pile, since the piles must be joined in a suspended state in which the upper pile is inclined, the alignment becomes more difficult. Therefore, provision of a jig or the like for facilitating the longitudinal connection of the diagonal pile has been strongly demanded. However, the actual situation is that no proposal for such jigs has been made.

特許第3031659号公報Japanese Patent No. 3031659 特開平9−13367号公報Japanese Patent Laid-Open No. 9-13367 特開2000−328557号公報JP 2000-328557 A

本発明の目的は、杭の縦継ぎ方法において、動揺が生じている作業現場等でも、上杭と下杭との縦継ぎを容易にすることである。
また、本発明の目的は、杭の縦継ぎを容易にするための位置合わせ用ガイド冶具を提供すること及び、縦継ぎが容易にできるようにした、ガイド冶具を有する杭を提供することにある。更に本発明の目的は、斜め杭の施工においても、その縦継ぎが容易かつ確実に行えるようにすることである。
An object of the present invention is to facilitate the longitudinal connection between an upper pile and a lower pile even in a work site where fluctuation has occurred in the longitudinal connection method of piles.
Another object of the present invention is to provide an alignment guide jig for facilitating the longitudinal connection of piles and to provide a pile having a guide jig that can be easily longitudinally connected. . Furthermore, it is an object of the present invention to enable easy and reliable longitudinal joining even in the construction of diagonal piles.

請求項の発明は、杭の縦継ぎのために使用する位置合わせ用のガイド具であって、縦継ぎする一方の杭の端部外周面に、杭の長手方向に杭端より長く突出して取り付けられる少なくとも一つの縦材からなり、前記縦材中部に縦材と杭端部外周面の間のクリアランスを狭くする補助部材を設けた、ことを特徴とする、位置合わせ用ガイド具である。
The invention of claim 1 is a guide jig for alignment used for longitudinal connection of piles, and protrudes longer than the pile end in the longitudinal direction of the pile on the outer peripheral surface of the end of one pile to be longitudinally connected. The positioning guide jig is characterized in that an auxiliary member that narrows the clearance between the vertical member and the outer peripheral surface of the pile end is provided in the middle of the vertical member. It is.

請求項の発明は、杭の縦継ぎのために使用する位置合わせ用のガイド具であって、縦継ぎする一方の杭の端部外周面に、杭の長手方向に杭端より長く突出して取り付けられる少なくとも一つの縦材からなり、前記縦材に外から抱き込むように取り付けた環状部材に縦材の垂直度を調整する調整ボルトを設置した、ことを特徴とする、位置合わせ用ガイド具である。
The invention of claim 2 is a guide jig for alignment used for longitudinal connection of piles, and protrudes longer than the end of the pile in the longitudinal direction of the pile on the outer peripheral surface of the end of one pile to be longitudinally connected. The alignment guide is characterized in that an adjustment bolt that adjusts the verticality of the vertical member is installed on an annular member that is attached to the vertical member so as to be held from the outside. It is a jig .

請求項に係る発明は、請求項1又は2に記載の位置合わせ用ガイド具を、垂直または傾斜して建て込まれた下杭又はそれに縦継ぎする上杭のどちらか一方の杭の端部に取り付け、前記ガイド具を案内として、上杭を下降させ、上杭を下杭に接合させる、ことを特徴とする、杭の縦継ぎ方法である。
The invention according to claim 3 is the end of one of the piles of the lower pile built vertically or inclined or the upper pile vertically connected to the alignment guide jig according to claim 1 or 2. attached to the part, as a guide the guide jig, is lowered over the pile, thereby joining the upper pile down piles, characterized in that a jointed way the pile.

請求項の発明によれば、クリアランスを狭くし、上下の杭の位置決めがし易くすることができる。
According to invention of Claim 1 , a clearance can be narrowed and it can make it easy to position an up-and-down pile.

請求項の発明によれば、縦材の垂直度を調整することができる。
According to invention of Claim 2 , the perpendicularity of a vertical member can be adjusted.

請求項の発明によれば、杭どうしの位置合わせ、芯合せ、接合が円滑、容易にでき、縦継ぎ全体が容易、確実、迅速に行えることになり、施工性が大巾に向上されることになる。
According to the invention of claim 3 , the positioning, centering and joining of the piles can be performed smoothly and easily, and the entire longitudinal connection can be performed easily, surely and quickly, and the workability is greatly improved. It will be.

本発明は、鋼管杭、コンクリートパイルや鋼管とコンクリートの複合杭等の既製杭の縦継ぎにおいて実施される。以下、本発明の実施態様について図面を参照して説明する。   The present invention is implemented in a longitudinal connection of a prefabricated pile such as a steel pipe pile, a concrete pile or a composite pile of steel pipe and concrete. Embodiments of the present invention will be described below with reference to the drawings.

杭の縦継ぎの方法は、従来のような溶接手段によるものと、機械式継手によって結合する方法が実施されるようになってきた。以下、機械式継手によるものを示すが、溶接継手であってもよい。   As a method for longitudinally connecting piles, a conventional method of welding and a method of connecting by a mechanical joint have been implemented. Hereinafter, a mechanical joint is shown, but a welded joint may be used.

図3は、鋼管杭の機械式による縦継ぎ装置の好適な例を示したものである。縦継ぎする一方の杭(上杭)1には、雌形のボックス継手材3を溶接部1aで溶接し、また、他方の杭(下杭)2には、雄形のピン継手材を溶接部2aで溶接する。ピン継手材4の嵌挿部13の外周面には円弧キー10を契合する外溝条13aが周設されている。また、ボックス継手材3の嵌受部14の内周面に前記外溝条13aより深く形成した内溝条14aが周設されている。各内溝条14aには、ボックス継手材3の外周より、周方向に間隔をおいて設けられた複数のネジ孔8aが連通されているとともに、その各内溝条14a内には、ネジ孔8aに螺合させたセット用ボルト8の操作によって、内溝条14a内から、嵌挿部13の外溝条13a内と嵌受部14の内溝条14a内に跨る位置まで螺進する円弧キー10が収容されている。セット用ボルト8の操作により円弧キー10を前記外溝条13a内と前記内溝条14a内に跨る位置まで螺進させることにより鋼管の下杭2と上杭1とが接合される。なお、鋼管杭の機械式による縦継ぎ装置は前記の構造に限定されるものでない。   FIG. 3 shows a preferred example of a mechanical longitudinal joining device for steel pipe piles. One pile (upper pile) 1 to be longitudinally welded is welded with a female box joint material 3 at a welded portion 1a, and the other pile (lower pile) 2 is welded with a male pin joint material. Welding at part 2a. An outer groove 13 a that engages the arc key 10 is provided around the outer peripheral surface of the insertion portion 13 of the pin joint material 4. Further, an inner groove 14a formed deeper than the outer groove 13a is provided on the inner peripheral surface of the fitting receiving portion 14 of the box joint material 3. Each inner groove 14a communicates with a plurality of screw holes 8a spaced from each other in the circumferential direction from the outer periphery of the box joint material 3, and each inner groove 14a has a screw hole in the inner groove 14a. A circular arc that is screwed from the inner groove 14a to the position straddling the inner groove 14a of the fitting receiving portion 14 and the inner groove 14a of the fitting receiving portion 14 by the operation of the set bolt 8 screwed to the 8a. A key 10 is accommodated. The lower pile 2 and the upper pile 1 of the steel pipe are joined by screwing the arc key 10 to the position straddling the inner groove 14a and the inner groove 14a by operating the setting bolt 8. In addition, the longitudinal connection apparatus by the mechanical type of a steel pipe pile is not limited to the said structure.

図5、図6はコンクリート杭の場合における機械式の縦継ぎ装置を例示したもので、結合の要部が示されている。このコンクリート杭の場合は、一方の杭例えば上杭1にはその端部に、雌形のボックス継手部3が形成され、また、他方の杭例えば下杭2には、雄形のピン継手部4が形成され、それら各継手部3,4は補強板18により被覆されている。そして、鋼管杭の縦継ぎ装置におけると同様に、ピン継手部4の外周面とボックス継手部3の内周面には円弧キー10を契合する外溝条13a、内溝条14aが周設され、それら内溝条14aには、外部からのセットボルト8の操作によって、内外両溝条13a,14aに跨る位置まで螺進する円弧キー10が収容されており、円弧キー10を介して上杭1と下杭2とが分離不能に結合されるようになっている。なお、コンクリート杭における縦継ぎ装置は、前記の構造に限定されるものではない。   5 and 6 exemplify a mechanical longitudinal joining device in the case of a concrete pile, and the main part of the connection is shown. In the case of this concrete pile, a female box joint portion 3 is formed at one end of one pile such as the upper pile 1, and a male pin joint portion is formed on the other pile such as the lower pile 2. 4 is formed, and each of the joint portions 3 and 4 is covered with a reinforcing plate 18. As in the case of the steel pipe pile longitudinal connection device, the outer groove 13a and the inner groove 14a for engaging the arc key 10 are provided around the outer peripheral surface of the pin joint portion 4 and the inner peripheral surface of the box joint portion 3. The inner groove 14a accommodates an arc key 10 that is screwed up to a position straddling the inner and outer grooves 13a, 14a by the operation of the set bolt 8 from the outside. 1 and the lower pile 2 are connected so as not to be separated. In addition, the longitudinal joining apparatus in a concrete pile is not limited to the said structure.

(位置合わせ用ガイド冶具及びこれを取り付けた杭)
図1、図2は鋼管杭の縦継ぎ方法に使用する位置合わせ用ガイド冶具とこれを取り付けた鋼管杭の実施態様を例示したものである。位置合わせ用ガイド冶具6は、図1に示すように、上下に長い複数のアングル材等による、縦材7と分割されたアングル材等よりなる環状部材5からなり、縦材7の下部は建て込まれた下杭2の上部周面に間隔を隔てて略杭の軸方向に平行に、かつ、下杭2より上方に長く突出して取り付けられる。その取り付け手段は、鋼管下杭2の上部周面に設けたボルト孔とボルト9aにより取り付ける。
(Guide jig for positioning and piles with this)
FIG. 1 and FIG. 2 illustrate an embodiment of a guide jig for alignment used in a longitudinal joining method of steel pipe piles and a steel pipe pile attached thereto. As shown in FIG. 1, the alignment guide jig 6 is composed of an annular member 5 made up of a vertical member 7 and an angle member divided by a plurality of angle members that are vertically long, and the lower part of the vertical member 7 is built. It is attached to the upper peripheral surface of the inserted lower pile 2 so as to protrude substantially in parallel to the axial direction of the pile and to be longer upward than the lower pile 2 with a space therebetween. The attachment means is attached by a bolt hole and a bolt 9a provided on the upper peripheral surface of the steel pipe lower pile 2.

また、前記複数の縦材(縦アングル材)7の少なくとも1つの上部には外側に縦材7を外方に屈曲する等して傾斜部7aを設ける。その傾斜面7bが下降する上杭1を下杭2の上端に導くガイドになる。また、縦材7の中部にはクリアランスを狭くする補助部材7cを設け、下杭2に上杭1を安定的に取り付ける。前記縦材7を下杭周面に取り付けた後、縦材7の上下部間に環状部材5を取り付ける。環状部材5には調整ボルトにより縦材7の垂直度を調整する。 Further, an inclined portion 7 a is provided on at least one upper portion of the plurality of vertical members (vertical angle members) 7 by bending the vertical member 7 outwardly, for example. The inclined pile 7b serves as a guide for guiding the upper pile 1 descending to the upper end of the lower pile 2. Further, an auxiliary member 7 c that narrows the clearance is provided in the middle of the vertical member 7, and the upper pile 1 is stably attached to the lower pile 2. After the vertical member 7 is attached to the lower pile peripheral surface, the annular member 5 is attached between the upper and lower portions of the vertical member 7. The vertical degree of the vertical member 7 is adjusted to the annular member 5 with an adjusting bolt.

前記ガイド冶具6を建て込まれた鋼管下杭2に取り付けるには、上杭1と接続される下杭2の上部周面に、縦材7を間隔を隔てて略水平方向に固定ボルト9aにより取り付ける。前記縦材7を鋼管下杭周面に取り付けたとき、縦材7の上下部間に設けた縦材7の受台12に、環状アングル材5を分割した弧状片5bが載置され、弧状片5bの端部に設けた鍔体11を固定ボルト9により締め付けることにより、縦材7と環状部材5とかつ一体に取り付けられることになる。これによって、ガイド治具の強度、剛性が高まる。なお、このガイド治具6は上杭1の方に取り付けても良い。 In order to attach the guide jig 6 to the built-in steel pipe lower pile 2, the vertical members 7 are spaced substantially horizontally by fixing bolts 9a on the upper peripheral surface of the lower pile 2 connected to the upper pile 1. Install. When the vertical member 7 is attached to the circumferential surface of the pile below the steel pipe, the arc-shaped piece 5b obtained by dividing the annular angle member 5 is placed on the pedestal 12 of the vertical member 7 provided between the upper and lower portions of the vertical member 7, By fastening the casing 11 provided at the end of the piece 5b with the fixing bolt 9, the longitudinal member 7 and the annular member 5 are attached integrally. This increases the strength and rigidity of the guide jig. The guide jig 6 may be attached to the upper pile 1.

(杭の縦継ぎ方法)
次に、前記上杭1と下杭2との縦継ぎ方法について説明する。ま、杭建て込み用の掘削孔内に下杭2が挿入され、その上部で所要の長さ地上に突出した下杭2の上部周面に前記縦材7を、間隔を隔てて略平行に取り付け、縦材7の上下部間に設けた受台12に、分割した弧状片5bを載置し、鍔体11をボルト9により締め付けることにより、縦材7と環状材5とを取り付ける。このようにしてガイド冶具を取り付けた下杭2の直上に、クレーン等で吊り下げられた上杭1を運び、縦材7の上部傾斜面7bにより、上杭1が誘導されて、ほぼ軸線方向の位置合せを行いながら、降下させて、上杭1の下端と下杭2の上端とを接合させる。その後、上下の杭は機械式継手で結合され、言いかえれば、上杭1のボックス継手3が下杭2のピン継手4に結合される。結合後は、位置合わせ用ガイド冶具を上下鋼管杭から取り外し、施工が終了する。そして前記ガイド冶具は施工後、取り外して反復使用することができ、一層のコスト低減が図れる。上記の方法により、下杭2に対する上杭1の位置決めがほぼ行われることになるが、各部材の製作精度や施工性の関係から、前記ガイド冶具6の誘導により、上杭1は正確な位置合わせができることになる。なお、この場合も、ガイド治具6は上杭1の方に取り付けてもよい。
(Pile vertical connection method)
Next, a longitudinal joining method between the upper pile 1 and the lower pile 2 will be described. Also not a, is inserted Shitakui 2 within the wellbore for like an anchor pile, said longitudinal member 7 on the upper circumferential surface of the lower pile 2 which projects required length ground at its top, substantially parallel spaced apart The vertical member 7 and the annular member 5 are attached by mounting the divided arc-shaped pieces 5 b on the cradle 12 provided between the upper and lower parts of the vertical member 7 and fastening the casing 11 with the bolts 9. In this way, the upper pile 1 suspended by a crane or the like is carried directly above the lower pile 2 to which the guide jig is attached, and the upper pile 1 is guided by the upper inclined surface 7b of the vertical member 7 so as to be substantially axial. The lower end of the upper pile 1 and the upper end of the lower pile 2 are joined while being lowered. Thereafter, the upper and lower piles are joined by mechanical joints, in other words, the box joint 3 of the upper pile 1 is joined to the pin joint 4 of the lower pile 2. After joining, the alignment guide jig is removed from the upper and lower steel pipe piles, and the construction is completed. And the said guide jig can be removed and used repeatedly after construction, and the further cost reduction can be aimed at. According to the above method, positioning of the upper pile 1 with respect to the lower pile 2 is almost performed. From the relationship of manufacturing accuracy and workability of each member, the upper pile 1 is accurately positioned by the guidance of the guide jig 6. You can match. In this case as well, the guide jig 6 may be attached to the upper pile 1.

コンクリート杭における上杭1と下杭2との縦継ぎの場合には、図5に示すように、下杭2の上部外周部にあらかじめ縦材7取り付け用のナット部材19を設けておき、前記したようにボルト9aをナット部材19に螺合して縦材7の取り付けを行う。また、縦材7は図に示すように杭の内周側に取り付けることもできる。その他位置合わせ用ガイド冶具の構成については、さきに説明したガイド冶具と同様であるから、その説明は省略する。 In the case of a longitudinal connection between the upper pile 1 and the lower pile 2 in the concrete pile, as shown in FIG. 5, a nut member 19 for attaching the vertical member 7 is provided in advance on the upper outer peripheral portion of the lower pile 2, As described above, the vertical member 7 is attached by screwing the bolt 9 a to the nut member 19. The vertical member 7 may be attached to the inner periphery of the pile, as shown in FIG. Since the configuration of the other alignment guide jig is the same as that of the guide jig described above, the description thereof is omitted.

位置合わせ用ガイド冶具は、杭の内周面例えば上杭の内周面に取り付けることもできる。図4は、上杭の内周面に位置合わせ用ガイド冶具を取り付けた例を示したものである。図4に基づいて説明すると、上杭1の下部内面にブラケット17cを介して、位置合わせ用ガイド冶具17の複数の縦材17dの上部を上杭1の下部内面に間隔を隔てて略平行に取り付ける。この縦材17dには、下降する上杭1を建て込まれた下杭の上端面に導く縦材17dの下部を中心部に傾斜させて傾斜面17aを設けられている。そして、複数の縦材17d間の傾斜面17a近くの上方には補強材17bを取り付け、傾斜面17bにより上杭1の下端を下杭の上端に案内するようになっている。なお、この位置合わせ用ガイド冶具及びその取り付けは、コンクリート杭においても適用できる。また、前記ガイド治具は下杭2の方に取り付けてもよい。   The alignment guide jig can be attached to the inner peripheral surface of the pile, for example, the inner peripheral surface of the upper pile. FIG. 4 shows an example in which an alignment guide jig is attached to the inner peripheral surface of the upper pile. Referring to FIG. 4, the upper portions of the plurality of vertical members 17 d of the alignment guide jig 17 are substantially parallel to the lower inner surface of the upper pile 1 via the bracket 17 c on the lower inner surface of the upper pile 1. Install. The vertical member 17d is provided with an inclined surface 17a with the lower part of the vertical member 17d leading to the upper end surface of the lower pile in which the descending upper pile 1 is built inclined toward the center. And the reinforcement material 17b is attached above the inclination surface 17a vicinity between several vertical members 17d, and the lower end of the upper pile 1 is guided to the upper end of a lower pile by the inclination surface 17b. The alignment guide jig and its attachment can also be applied to concrete piles. Further, the guide jig may be attached to the lower pile 2.

本発明では、前記の各位置合わせ用ガイド冶具は、杭縦継ぎの施工現場において取り付けを行うばかりでなく、これをあらかじめ杭に取り付けておき、位置合わせ用ガイド冶具付きの既製杭として縦継ぎに使用することができる。この場合、位置合わせ用ガイド冶具の縦材等は杭に対し溶接で取り付けるようにしてもよい。位置合わせ用ガイド冶具を現場で取り付けるようにするか、同ガイド冶具付きの杭を用いて施工するかは、施工全体の作業性や経済性を勘案して適宜選択される。   In the present invention, each of the above-mentioned alignment guide jigs is not only installed at the construction site of the longitudinal connection of the pile, but is also attached in advance to the pile, and is used as a ready-made pile with the alignment guide jig for longitudinal connection. Can be used. In this case, the vertical member of the alignment guide jig may be attached to the pile by welding. Whether to install the alignment guide jig on site or use the pile with the guide jig is appropriately selected in consideration of the workability and economics of the entire construction.

(斜め杭の縦継ぎ)
斜め杭の縦継ぎは、傾斜して建て込まれた下杭に対し、上杭を下杭の傾斜に合せて行わなければならないので、垂直杭の縦継ぎよりも難度が高くなる。図7〜図15は、この斜め杭の縦継ぎを容易、確実に行えるようにした実施態様を示したものである。図7〜図11は杭(斜め杭)に位置合わせ用ガイド冶具を取り付けた実施態様を示し、図12〜図16は、斜め杭の縦継ぎ方法を説明する図である。実施態様で示したように、斜め杭の縦継ぎにおいては、杭に取り付けるガイド治具は、上杭を吊り降ろしたときに邪魔にならないように、そのガイド治具と杭径方向の反対側のガイド治具を短くしたり、折り曲げたり、設置しなかったりする。
(Vertical connection of diagonal piles)
Longitudinal piles with diagonal piles are more difficult than vertical piles because the upper piles must be aligned with the slopes of the lower piles. FIGS. 7 to 15 show an embodiment in which the longitudinal piles can be connected easily and reliably. 7 to 11 show an embodiment in which an alignment guide jig is attached to a pile (an oblique pile), and FIGS. 12 to 16 are diagrams for explaining a longitudinal joining method of the oblique pile. As shown in the embodiment, in the longitudinal joint of the diagonal pile, the guide jig attached to the pile is on the opposite side of the pile radial direction with the guide jig so that it does not get in the way when the upper pile is suspended. Shorten, bend, or not install the guide jig.

図7、図8は位置合わせ用ガイド冶具を取り付けた杭の一実施例を示したもので、2は下杭、6はガイド冶具で、アングル材等により長く形成された複数の縦材7よりなり、それらの縦材7は杭の上部外周面の一側部に間隔を隔てて平行かつ軸心方向に対し直立状態で、その下部をボルト9aあるいは溶接により上部は杭端より上方に長く突出して取り付けられている。図9、図10は前記に代わる別の実施態様を示したもので、縦材7は例えば巾広の平板を弯曲して下杭2の外周面に沿うように平面弧形に形成されており、その下部は杭上部外周面の一側部にボルト9aあるいは溶接により、上部を杭端より上方に長く突出して取り付けられている。なお、前記の縦材7は図示のような単一ではなく複数のものを間隔を隔てて取り付けるようにしてもよい。   FIG. 7 and FIG. 8 show an embodiment of a pile to which an alignment guide jig is attached. 2 is a lower pile, 6 is a guide jig, and a plurality of longitudinal members 7 formed long by an angle material or the like. These vertical members 7 are parallel to and spaced from one side of the upper outer peripheral surface of the pile and are upright with respect to the axial direction, and the upper portion protrudes longer than the pile end by bolts 9a or welding. Attached. 9 and 10 show another embodiment instead of the above, and the vertical member 7 is formed in a plane arc shape so as to bend a wide flat plate and follow the outer peripheral surface of the lower pile 2. The lower part is attached to one side part of the outer peripheral surface of the upper part of the pile by a bolt 9a or welding so that the upper part protrudes longer than the end of the pile. The longitudinal members 7 are not single as shown in the figure, but a plurality of them may be attached at intervals.

図11は、位置合わせ用のガイド冶具6を杭2の内周面に取り付けた実施態様を示したものである。この冶具6も少なくとも一本の縦材7よりなり、下部を杭の上部内周面に上部を杭端より上方に長く突出させて軸心方向に対し直立状態にボルト9aあるいは溶接により取り付けられる。縦材7を複数用いる場合は、杭内周の側部に間隔を隔てて取り付けるようにする。   FIG. 11 shows an embodiment in which a guide jig 6 for alignment is attached to the inner peripheral surface of the pile 2. This jig 6 is also made of at least one vertical member 7, and is attached by bolts 9a or welding in an upright state with respect to the axial direction with the lower part protruding longer from the upper inner peripheral surface of the pile and the upper part extending upward from the pile end. When using a plurality of vertical members 7, they are attached to the side of the inner periphery of the pile with a gap.

なお、前記の実施態様は、位置合わせ用ガイド冶具6を下杭2に取り付けているが、このガイド冶具は上杭の方に取り付けても実施できるものである。   In the above embodiment, the alignment guide jig 6 is attached to the lower pile 2, but this guide jig can be implemented even if attached to the upper pile.

本発明の斜め杭の縦継ぎ方法は、前記各実施態様のいずれかを用いて行われる。図12〜図15はそれぞれ異なる実施態様を示した概略説明図である。   The method for longitudinally connecting diagonal piles according to the present invention is performed using any one of the above embodiments. 12 to 15 are schematic explanatory views showing different embodiments.

図12に示す実施態様は、傾斜して建て込まれた下杭2の地盤より突出した上部の外周面に、図7,8に示すように位置合わせ用ガイド冶具6を取り付ける。この場合、その縦材7は複数用いるのがよく、それら縦材7は下杭2の傾斜下側(図7、図8参照)に間隔を隔てて取り付けるのがよい。また、図9、図10に示す位置合わせ用ガイド冶具を用いる場合は、縦材7は複数にする必要はない。前記の下杭2に対し上杭1は、図12(イ)に示すように、ほぼ直立した状態にして下杭2の上端に向けて吊り降ろして行き、図12(ロ)に示すように、縦7の上部内側に当接aさせる。そして、図12(ハ)に示すように、杭端を縦材7に接触させ滑らせるようにして下降させ杭端の当接部aの対向部bを下杭2の杭端に当接させ、上杭1の当接部aと縦材7及び対向部bと下杭2との接触を保ちながら上杭1を矢印cのように傾動させて行って、図12(ニ)に示すように下杭2の傾斜に合せて上杭1の下端を下杭2の上端に接合させるのである。 The embodiment shown in FIG. 12 attaches the alignment guide jig 6 as shown in FIGS. 7 and 8 to the outer peripheral surface of the upper part protruding from the ground of the lower pile 2 built at an inclination. In this case, the longitudinal members 7 may that employs multiple, they stringer 7 is inclined lower side of the lower pile 2 (see FIGS. 7 and 8) may be attached at intervals in the. Further, when the alignment guide jig shown in FIGS. 9 and 10 is used, it is not necessary to use a plurality of vertical members 7. As shown in FIG. 12 (a), the upper pile 1 is suspended in an almost upright state toward the upper end of the lower pile 2, as shown in FIG. 12 (b). Then, a contact is made with the upper inner side of the vertical member 7. Then, as shown in FIG. 12 (c), the pile end is brought into contact with the longitudinal member 7 and lowered so as to slide, and the opposing portion b of the contact portion a of the pile end is brought into contact with the pile end of the lower pile 2. The upper pile 1 is tilted as shown by the arrow c while maintaining the contact between the contact portion a of the upper pile 1 and the vertical member 7 and the facing portion b and the lower pile 2 as shown in FIG. In accordance with the inclination of the lower pile 2, the lower end of the upper pile 1 is joined to the upper end of the lower pile 2.

なお、この場合、上杭1はその下端が縦材7に当接aした初期あるいは中期の段階で下杭1の傾斜に合わせて傾動させた後、その傾斜方向に沿って上杭2を斜めに下降させることもできる。上、下両杭1,2が接合した際は、上杭1の下部は縦材7に接合しているので、その後の上下両杭の縦継ぎ作業が終了するまで上杭1は下杭2に安定して支持されることになる。 In this case, after the upper pile 1 is tilted in accordance with the inclination of the lower pile 1 at the initial or middle stage when the lower end of the upper pile abuts against the vertical member 7, the upper pile 2 is inclined along the inclination direction. Can also be lowered. When the upper and lower piles 1 and 2 are joined, the lower part of the upper pile 1 is joined to the vertical member 7, so the upper pile 1 is connected to the lower pile 2 until the subsequent longitudinal joining of the upper and lower piles is completed. Will be supported stably.

図13に示す実施態様は、さきの実施態様とは反対に、図13(イ)に示すように、位置合わせ用ガイド冶具6を上杭1の方に取り付け、これを傾斜して建て込まれた下杭2に吊り降ろして接合する。まず、図13(ロ)に示すように、上杭1をその縦材7が傾斜の上方側に位置した状態にして下降させて行き、縦材7の先端(下端)を、下杭2の端部外周面の傾斜の上方側に当接aさせる。そして、縦材7を下杭2の外周面に接触させながら上杭1を下降させて行き、上、下両杭1,2の杭端が近接したら、図13(ハ)に示すように、上杭1を矢印cのように傾動させながらさらに下降させて、図13(ニ)に示すように、下杭2の傾斜に合わせて上杭1の下端を下杭2の上端に接合させるのである。この場合も、上杭1の傾動開始は、縦材7と下杭1の当接aした初期あるいは中期の段階で行うことができる。 In the embodiment shown in FIG. 13, in contrast to the previous embodiment, as shown in FIG. 13 (a), the alignment guide jig 6 is attached to the upper pile 1, and this is built in an inclined manner. It is suspended from the lower pile 2 and joined. First, as shown in FIG. 13 (b), the upper pile 1 that the longitudinal member 7 is gradually lowered in the state of being positioned on the upper side of the slope of the longitudinal member 7 tip (lower end) of the lower pile 2 It is made to contact | abut to the upper side of the inclination of an outer peripheral surface of an edge part. Then, when the vertical pile 7 is brought into contact with the outer peripheral surface of the lower pile 2 and the upper pile 1 is lowered and the pile ends of the upper and lower piles 1 and 2 are close to each other, as shown in FIG. Since the upper pile 1 is further lowered while being tilted as shown by the arrow c, the lower end of the upper pile 1 is joined to the upper end of the lower pile 2 in accordance with the inclination of the lower pile 2 as shown in FIG. is there. In this case as well, the tilting of the upper pile 1 can be performed at the initial or middle stage where the vertical member 7 and the lower pile 1 are in contact with each other.

図14に示す実施態様は、位置合わせ用ガイド冶具6を図11に示すように、下杭2の傾斜方向上側の内周面に取り付けて実施するものである。この場合、縦材7は一本でも足りるが、複数本を間隔を隔てて取り付けるようにすることもできる。下杭2は傾斜して建て込まれる。上杭1は、図14(イ)に示すように、ほぼ直立した状態にして、下杭2に向けて吊り降ろして行き、図14(ロ)に示すように、その下端内面を縦材7の上部外側面を当接aさせる。そして図14(ハ)に示すように、杭端を縦材7に接触させ滑らせるようにして下降させながら矢印cのように傾動させて行き、図14(ニ)に示すように、下杭2の傾斜に合わせて上杭1の下端を下杭2の上端に接合させるのである。 The embodiment shown in FIG. 14 is implemented by attaching the alignment guide jig 6 to the inner peripheral surface on the upper side in the inclination direction of the lower pile 2 as shown in FIG. In this case, only one longitudinal member 7 is sufficient, but a plurality of longitudinal members 7 may be attached at intervals. The lower pile 2 is built with an inclination. Upper pile 1, as shown in FIG. 14 (a), in the state of being substantially upright, go down hanging towards the bottom pile 2, as shown in FIG. 14 (b), longitudinal members 7 and the lower end inner surface The upper outer surface of the contact is made a. Then, as shown in FIG. 14 (c), the pile end is tilted as shown by arrow c while being lowered so as to come into contact with the longitudinal member 7 and slide, and as shown in FIG. According to the inclination of 2, the lower end of the upper pile 1 is joined to the upper end of the lower pile 2.

図15に示す実施態様では、図15(イ)に示すように、位置合わせ用ガイド冶具を上杭1の方に取り付け、これを傾斜して建て込まれた下杭1に向けて吊り降ろして接合する。まず図15(ロ)に示すように、上杭1をその縦材7が傾斜の下側に位置した状態にして下降させて行き、縦材7の下端を下杭2の端部内周面の傾斜の下方側に当接aさせる。そして、縦材7を下杭2の内周面に接触させながら上杭1を下降させて行くとともに、図15(ハ)に示すように上杭1を矢印cのように傾動させて行き、図15(ニ)に示すように、下杭2の傾斜に合わせて上杭1の下端を下杭2の上端に接合させるのである。 In the embodiment shown in FIG. 15, as shown in FIG. 15 (a), an alignment guide jig is attached to the upper pile 1, and this is suspended toward the lower pile 1 built in an inclined manner. Join. First, as shown in FIG. 15 (b), the upper pile 1 that the longitudinal member 7 is gradually lowered in the state of being positioned on the lower side of the inclined, the longitudinal member 7 the lower end of the lower pile 2 in the end peripheral surface It abuts on the lower side of the slope. And while making the vertical member 7 contact the inner peripheral surface of the lower pile 2, the upper pile 1 is lowered, and the upper pile 1 is tilted as shown by an arrow c as shown in FIG. As shown in FIG. 15 (d), the lower end of the upper pile 1 is joined to the upper end of the lower pile 2 in accordance with the inclination of the lower pile 2.

前記各実施態様では、上杭1を直立状態にして吊り降ろすようにしているが、この吊り降ろしは、図16に示すように、上杭1を斜めの状態に吊って行ってもよい。なお、図16はガイド治具の取り付けを省略している。また、各図面では、地面が水平となっているが、地面は水平に限らず傾斜地や法面等のような傾斜面であってもよい。   In each of the above embodiments, the upper pile 1 is suspended in the upright state, but this suspension may be performed by suspending the upper pile 1 in an oblique state as shown in FIG. In FIG. 16, the guide jig is not attached. In each drawing, the ground is horizontal, but the ground is not limited to horizontal, and may be an inclined surface such as an inclined ground or a slope.

鋼管杭の縦継ぎ方法に使用する位置合わせ用ガイド冶具を説明するための側面図である。It is a side view for demonstrating the guide jig for alignment used for the longitudinal joining method of a steel pipe pile. 図2は図1に示された位置合わせ用ガイド冶具の平面図である。FIG. 2 is a plan view of the alignment guide jig shown in FIG. 鋼管杭の縦継ぎ装置の機械式継手を説明するための分解した斜視図である。It is the disassembled perspective view for demonstrating the mechanical coupling of the longitudinal connection apparatus of a steel pipe pile. 鋼管上杭に取り付けた位置合わせ用ガイド冶具を説明するための側段面図である。It is a side step view for demonstrating the alignment guide jig attached to the steel pipe upper pile. コンクリート杭の縦継ぎ継手と縦杆の取り付け状態の一例を示す要部側断面図である。It is a principal part sectional side view which shows an example of the attachment state of the vertical joint and vertical gutter of a concrete pile. 同他の例を示す要部側断面図である。It is principal part sectional drawing which shows the other example. 斜め杭の縦継ぎ方法に使用する位置合わせガイド冶具の取り付け状態の一例を示す平面図である。It is a top view which shows an example of the attachment state of the alignment guide jig used for the longitudinal joining method of a diagonal pile. 図7の矢視Aの方向からの要部側面図である。It is a principal part side view from the direction of arrow A of FIG. 同他の例を示す平面図である。It is a top view which shows the other example. 同要部側面図である。It is the principal part side view. 同さらに他の例を示す要部側断面図である。It is a principal part sectional side view which shows the other example. 斜め杭の縦継ぎ方法の一実施態様を段階を追って示す説明図である。It is explanatory drawing which shows one embodiment of the longitudinal joining method of a diagonal pile later on. 同他の実施態様を段階を追って示す説明図である。It is explanatory drawing which shows the other embodiment later on in steps. 同さらに他の実施態様を段階を追って示す説明図である。It is explanatory drawing which shows the embodiment further same as the above step by step. 同さらに他の実施態様を段階を追って示す説明図である。It is explanatory drawing which shows the embodiment further same as the above step by step. 上杭を斜めに吊って降ろす実施態様を示す説明図である。It is explanatory drawing which shows the embodiment which hangs an upper pile diagonally and lowers.

符号の説明Explanation of symbols

1・・・鋼管上杭、2・・・鋼管下杭、3・・・ボックス継手材、4・・・ピン継手材、5・・・環状アングル材(環状部材)、6・・・位置合わせ用ガイド冶具、7・・・縦アングル材(縦材)、7b・・・傾斜面、8・・・セット用ボルト、9・・・ボルト、10・・・円弧キー、11・・・鍔材、12・・・受台、13・・・嵌挿部、13a・・・外溝条、14・・・嵌受部、14a・・・内溝条、17・・・位置合わせ用ガイド冶具、18・・・補強板、19・・・ナット部材。 DESCRIPTION OF SYMBOLS 1 ... Steel pipe upper pile, 2 ... Steel pipe lower pile, 3 ... Box joint material, 4 ... Pin joint material, 5 ... Annular angle material (annular member), 6 ... Positioning Guide jig, 7 ... vertical angle material (vertical material), 7b ... inclined surface, 8 ... set bolt, 9 ... bolt, 10 ... arc key, 11 ... saddle material , 12 ... Receiving base, 13 ... Insertion part, 13a ... Outer groove, 14 ... Insertion part, 14a ... Inner groove, 17 ... Positioning guide jig, 18 ... reinforcing plate, 19 ... nut member.

Claims (3)

杭の縦継ぎのために使用する位置合わせ用のガイド具であって、
縦継ぎする一方の杭の端部周面に、杭の長手方向に杭端より長く突出して取り付けられる少なくとも一つの縦材からなり、
前記縦材の中部に縦材と杭端部外周面の間のクリアランスを狭くする補助部材を設けた、
ことを特徴とする、位置合わせ用ガイド具。
A guide jig for alignment used for longitudinal connection of piles,
The end outside circumferential surface of one of the piles to be jointed, Ri Do at least one longitudinal member mounted to protrude longer than Kuitan in the longitudinal direction of the pile,
An auxiliary member that narrows the clearance between the vertical member and the outer peripheral surface of the pile end is provided in the middle of the vertical member,
An alignment guide jig characterized by that.
杭の縦継ぎのために使用する位置合わせ用のガイド治具であって、
縦継ぎする一方の杭の端部外周面に、杭の長手方向に杭端より長く突出して取り付けられる少なくとも一つの縦材からなり、
前記縦材に外から抱き込むように取り付けた環状部材に縦材の垂直度を調整する調整ボルトを設置した、
ことを特徴とする、位置合わせ用ガイド具。
A guide jig for alignment used for longitudinal connection of piles,
It consists of at least one longitudinal member attached to the outer peripheral surface of the end of one pile to be longitudinally connected to the longitudinal direction of the pile so as to protrude longer than the pile end,
An adjustment bolt that adjusts the verticality of the vertical member is installed on the annular member that is attached to the vertical member so as to be held from the outside.
Characterized in that, position aligning guide jig.
請求項1又は2に記載の位置合わせ用ガイド治具を、垂直または傾斜して建て込まれた下杭又はそれに縦継ぎする上杭のどちらか一方の杭の端部に取り付け、
前記ガイド治具を案内として、上杭を下降させ、上杭を下杭に接合させる、
ことを特徴とする、杭の縦継ぎ方法
The alignment guide jig according to claim 1 or 2 is attached to an end of either one of a lower pile built up vertically or inclined or an upper pile vertically connected thereto,
Using the guide jig as a guide, lowering the upper pile and joining the upper pile to the lower pile,
A method for longitudinally connecting piles .
JP2004240901A 2003-08-28 2004-08-20 A guide jig for alignment and a method of longitudinal joining of piles using them. Active JP4402543B2 (en)

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JP2004240901A JP4402543B2 (en) 2003-08-28 2004-08-20 A guide jig for alignment and a method of longitudinal joining of piles using them.

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JP4648959B2 (en) * 2008-03-10 2011-03-09 株式会社エムオーテック Steel pipe support and method of connecting steel pipes
JP5642988B2 (en) * 2010-03-31 2014-12-17 Jfeスチール株式会社 Detachable guide jig and steel pipe pile construction method using the same
JP5287803B2 (en) * 2010-07-29 2013-09-11 新日鐵住金株式会社 Diagonal pile joint jig, pile with jig, oblique pile joint method, and structure manufacturing method
JP5321549B2 (en) * 2010-07-30 2013-10-23 新日鐵住金株式会社 Oblique pile joint jig, oblique pile joint method using the jig and structure manufacturing method

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