JP3321138B2 - Joint structure for steel pile and method of building steel pile - Google Patents
Joint structure for steel pile and method of building steel pileInfo
- Publication number
- JP3321138B2 JP3321138B2 JP2000054049A JP2000054049A JP3321138B2 JP 3321138 B2 JP3321138 B2 JP 3321138B2 JP 2000054049 A JP2000054049 A JP 2000054049A JP 2000054049 A JP2000054049 A JP 2000054049A JP 3321138 B2 JP3321138 B2 JP 3321138B2
- Authority
- JP
- Japan
- Prior art keywords
- pile
- steel
- joint
- steel plate
- steel pile
- 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.)
- Expired - Fee Related
Links
Landscapes
- Piles And Underground Anchors (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、鋼杭用の継手構造
と鋼杭建て込み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 joint structure for a steel pile and a method for building a steel pile.
【０００２】[0002]
【従来の技術】鋼杭において、従来の鋼材（鋼杭）を全
長にわたり引き抜く方法としては、鋼材を打込む前に予
め、鋼材に滑材（ワックス状）を塗布したり、鋼材にプ
ラスチックカバーを取りつけて、バイブロハンマーなど
により杭を引き抜き撤去している（例えば、特開平０６
−２４０６７０号公報参照）。他に、鋼材の上部のみ撤
去する方法として、杭が必要なくなった時点で杭体の周
囲を掘削して切断する方法や、引き抜き力により容易に
壊れる構造の継手を設けておく方法があった。2. Description of the Related Art A conventional method of pulling out a steel material (steel pile) over its entire length from a steel pile is to apply a lubricating material (wax-like) to the steel material before driving the steel material or apply a plastic cover to the steel material. After mounting, the pile is pulled out and removed with a vibro hammer or the like.
-240670). In addition, as a method of removing only the upper part of the steel material, there has been a method of cutting by cutting around the pile body when the pile is no longer necessary, or a method of providing a joint having a structure easily broken by a pulling force.
【０００３】[0003]
【発明が解決しようとする課題】しかし、鋼材を全長に
わたり引き抜く方法としては、杭長の短いものに対して
は有効的であるが、継杭などして杭長の長いものには杭
の長さに伴って引き抜き抵抗が加わる。このため、大型
の反力装置が必要になったり、振動・打撃を与える必要
があり、市街地などの狭小な場所での作業が困難であっ
たり、振動、騒音などの問題が発生するなどの問題があ
った。また、継杭などの杭長の長いものを土留め壁に用
いた場合には、土留め内部の掘削時外側からの土圧・水
圧により土留め壁が変形するので、鋼材も変形すること
になり、引き抜き抵抗力が増加して引き抜けないことが
あった。また、何本かの鋼材をボルトないし溶接でつな
いで１本の長い鋼材にしていた場合、継手の鋼板やボル
トがあるため、引き抜き時の抵抗力が増し、引き抜けな
い場合があった。さらに、杭の全長に滑材（ワックス
状）を塗布したり、鋼材にプラスチックカバーを取りつ
けたりするには大変な手間がかかっていた。一方、鋼材
の上部のみ撤去する方法に対しても杭体の周囲を掘削す
るため、周辺に別な土留め壁が必要になったり、掘削に
よる周辺構造物への沈下・傾斜等の影響が生じたりして
いた。また、容易に壊れる継手を使用する場合には、杭
体としての構造に問題が生じ、大きな土圧・水圧に抵抗
できなくなったり杭や土留め壁の変位が大きくなったり
していた。なお、特開平１１−０１３０５８号公報に
は、鋼管杭やコンクリート杭など円形管を対象としたも
ので、接続管内で杭軸方向に相対移動可能としたものが
開示されている。しかし、これでは、上下杭を連結状態
として一括して吊り込んで建て込むことができない。However, as a method of pulling out the steel material over the entire length, it is effective for a pile having a short pile length. Accordingly, a pull-out resistance is added. For this reason, a large reaction force device is required, and it is necessary to apply vibrations and impacts, making it difficult to work in a narrow place such as an urban area, and causing problems such as vibration and noise. was there. In addition, if a long pile, such as a joint pile, is used for the retaining wall, the retaining wall will be deformed due to earth pressure and water pressure from the outside during excavation inside the retaining wall. In some cases, pull-out resistance increased and pull-out did not occur. Further, when several steel materials are connected to each other by bolts or welding to form one long steel material, the steel plate or the bolt of the joint may increase the resistance at the time of pulling out, and may not be able to pull out. Furthermore, it took a lot of trouble to apply a sliding material (wax-like) to the entire length of the pile and attach a plastic cover to the steel material. On the other hand, the method of removing only the upper part of the steel material also requires excavation around the pile body, so another retaining wall is needed around the pile body, and the excavation may affect the surrounding structures due to settlement and inclination. Or was. In addition, when a joint that breaks easily is used, a problem occurs in the structure of the pile body, and it becomes impossible to withstand large earth pressure and water pressure, and displacement of the pile and the retaining wall is increased. Japanese Patent Application Laid-Open No. 11-013058 discloses a circular pipe such as a steel pipe pile or a concrete pile, which is relatively movable in a pile axis direction in a connection pipe. However, in this case, the upper and lower stakes cannot be connected and suspended in a lump.
【０００４】本発明の課題は、鋼杭に関して、引き抜き
時に支障がなく容易に上杭のみ引き抜くことができるよ
うにすることである。また、本発明は、上下杭を連結状
態として一括して吊り込んで建て込むことができるよう
にすることも併せて課題としている。[0004] It is an object of the present invention to make it possible to easily pull out only the upper pile without any trouble at the time of pulling out the steel pile. Another object of the present invention is to allow the upper and lower piles to be suspended and assembled at once in a connected state.
【０００５】[0005]
【課題を解決するための手段】以上の課題を解決するた
め、請求項１記載の発明は、例えば、図１及び図２に示
すように、鋼杭１０、２０用の継手構造であって、下杭
１０または上杭２０の一方の鋼杭１０に端部から突出さ
せて固定した継手鋼鈑３０と、継手鋼鈑３０の鋼杭１０
端部からの突出部に形成した通し孔３３と、下杭１０ま
たは上杭２０の他方の鋼杭２０の端部に形成した通し孔
２３と、継手鋼鈑３０に他方の鋼杭２０の端部を重ねた
状態で両通し孔２３、３３に通され、かつ、両通し孔２
３、３３で折り曲げられて上杭２０の上方まで延びる連
結材４０と、からなることを特徴とする。Means for Solving the Problems To solve the above problems, the invention according to claim 1 is, for example, a joint structure for steel piles 10 and 20 as shown in FIGS. A joint steel plate 30 protruding from one end of one of the lower pile 10 and the upper pile 20 and fixed to the steel pile 10, and a steel pile 10 of the joint steel plate 30
A through hole 33 formed at a protruding portion from the end, a through hole 23 formed at an end of the other steel pile 20 of the lower pile 10 or the upper pile 20, and an end of the other steel pile 20 at the joint steel plate 30. passed through both through holes 23, 33 in a state where part was overlaid, and both the through-holes 2
And a connecting material 40 bent at 3, 33 and extending above the upper pile 20 .
【０００６】請求項４記載の発明は、請求項１から３の
いずれか記載の継手構造を用い、例えば、図１及び図２
に示すように、上端部に継手鋼鈑３０が固定された鋼杭
１０を削孔部１内に建て込む下杭建て込み工程と、下杭
１０上端部の継手鋼鈑３０に上杭２０の下端部を重ねて
両通し孔２３、３３に連結材４０を通す上下杭接続工程
と、削孔部１内に上杭２０を建て込む上杭建て込み工程
と、両通し孔２３、３３から連結材４０を引き抜く連結
材引き抜き工程と、からなる鋼杭建て込み方法を特徴と
する。A fourth aspect of the present invention uses the joint structure according to any one of the first to third aspects.
As shown, the lower pile like an anchor process Tatekomu steel piles 10 fitting steel plate 30 is fixed to the upper end into the drilled section 1, of the upper pile 20 to the joint steel sheet 30 of the lower pile 10 upper section An upper and lower pile connection process in which the lower end is overlapped and the connecting material 40 is passed through the through holes 23 and 33, an upper pile building process in which the upper pile 20 is built in the drilled portion 1, and connection is made from the both through holes 23 and 33. And a connecting member extracting step of extracting the member 40, and a method of building a steel pile.
【０００７】請求項１記載の発明及び請求項４記載の発
明によれば、下杭の建て込み後、下杭または上杭の一方
の鋼杭に端部から突出させて固定した継手鋼鈑に他方の
鋼杭の端部を重ねた状態で、継手鋼鈑の鋼杭端部からの
突出部の通し孔と他方の鋼杭の端部の通し孔に連結材を
通すことにより、下杭に上杭を接続してから、上杭を建
て込む。その後、連結材を引き上げる等して通し孔から
引き抜いておくことにより、必要な時期に、上杭を容易
に引き抜くことができる。According to the first and fourth aspects of the present invention, after the lower pile is erected, the joint steel plate is fixed to one of the lower pile or the upper pile by projecting from one end thereof. In the state where the end of the other steel pile is piled up, the connecting material is passed through the through-hole of the projecting part of the joint steel plate from the end of the steel pile and the through-hole at the end of the other steel pile, so that the lower pile is passed through. Connect the upper pile and then build the upper pile. Then, by pulling up the connecting member and pulling it out of the through hole, the upper pile can be easily pulled out at a necessary time.
【０００８】ここで、鋼杭としては、Ｈ形鋼、Ｉ形鋼、
鋼矢板、溝形鋼、鋼管が含まれる。継手鋼鈑としては、
溝形鋼、山形鋼、平鋼やその他の任意の加工形状のもの
も含まれる。連結材としては、ワイヤが挙げられるが、
ワイヤに限らず、チェーンやロープ、またはワイヤの先
端に付けたフックでもよい。Here, as the steel pile, H-shaped steel, I-shaped steel,
Includes steel sheet pile, channel steel, and steel pipe. As a joint steel plate,
Also included are channel steel, angle iron, flat steel and any other machined shapes. Examples of the connecting material include a wire,
Not limited to the wire, a chain, a rope, or a hook attached to the tip of the wire may be used.
【０００９】請求項２記載の発明は、請求項１記載の鋼
杭用の継手構造であって、例えば、図１及び図２に示す
ように、平板部１１、２１を有する鋼杭１０、２０の平
板部１１、２１端部の両面に重ねる一対の継手鋼鈑３０
を備えることを特徴とする。According to a second aspect of the present invention, there is provided a joint structure for a steel pile according to the first aspect, for example, as shown in FIGS. 1 and 2, steel piles 10, 20 having flat plate portions 11, 21. A pair of joint steel plates 30 to be overlapped on both sides of the end portions of the flat plate portions 11 and 21
It is characterized by having.
【００１０】請求項３記載の発明は、請求項１記載の鋼
杭用の継手構造であって、例えば、図２に示すように、
連結材は吊りワイヤ４０やロープやチェーン等の索具で
あることを特徴とする。A third aspect of the present invention is a joint structure for a steel pile according to the first aspect, for example, as shown in FIG.
The connecting material is a hanging wire 40 or a rigging device such as a rope or a chain.
【００１１】請求項５記載の発明は、請求項１から３の
いずれか記載の継手構造を用い、鋼杭１０の上端部に固
定して備えられた継手鋼鈑３０に他の鋼杭２０の下端部
を重ねて両通し孔２３、３３に連結材４０を通す上下杭
接続工程と、継手鋼鈑３０及び連結材４０を介して連結
状態の上下杭１０、２０を一括して吊り上げて削孔部１
内に建て込む上下杭建て込み工程と、両通し孔２３、３
３から連結材４０を引き抜く連結材引き抜き工程と、か
らなる鋼杭建て込み方法を特徴とする。According to a fifth aspect of the present invention, there is provided the joint structure according to any one of the first to third aspects, wherein another steel pile 20 is fixed to a joint steel plate 30 fixedly provided at the upper end of the steel pile 10. An upper and lower pile connection process in which the lower end portions are overlapped and the connecting material 40 is passed through the through holes 23 and 33, and the upper and lower piles 10 and 20 in the connected state are collectively lifted and drilled through the joint steel plate 30 and the connecting material 40. Part 1
Pile-building process to be built in
And a connecting member extracting step of extracting the connecting member 40 from Step 3.
【００１２】請求項５記載の発明によれば、鋼杭上端部
に固定して備えられた継手鋼鈑に他の鋼杭の下端部を重
ねて両通し孔に連結材を通すことにより、上下杭を連結
状態としてから、その連結状態の上下杭を一括して吊り
上げて削孔部内に建て込むことができる。その後、請求
項１または４記載の発明と同様に、連結材を引き上げる
等して通し孔から引き抜いておくことにより、必要な時
期に、上杭を容易に引き抜くことができる。According to the fifth aspect of the present invention, the lower end of another steel pile is superimposed on the joint steel plate fixedly provided at the upper end of the steel pile, and the connecting material is passed through both through holes, thereby making it possible to move the steel pile vertically. After the piles are in the connected state, the upper and lower piles in the connected state can be lifted at once and built into the drilled portion. Then, similarly to the first or fourth aspect of the present invention, the upper pile can be easily pulled out at a necessary time by pulling out the connecting member and pulling out the connecting member from the through hole.
【００１３】[0013]
【発明の実施の形態】以下、図を参照して本発明の実施
の形態の一例を詳細に説明する。まず、本発明の鋼杭用
の継手構造の構成を説明する。図１に示すように、下杭
１０と上杭２０を杭軸の方向に挿脱可能に接続する継手
鋼鈑１が設けられている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. First, the configuration of the joint structure for steel piles of the present invention will be described. As shown in FIG. 1, a joint steel plate 1 is provided for connecting the lower pile 10 and the upper pile 20 so as to be able to be inserted and removed in the direction of the pile axis.
【００１４】下杭１０と上杭２０は、Ｈ形鋼杭で、ウエ
ブ（平板部）１１、２１及びフランジ（平板部）１２、
２２を有する。下杭１０のウエブ１１の上端部には継手
鋼鈑３０が取り付けられている。上杭２０のウエブ２１
の下端部に略円形状の通し孔２３が形成されている。The lower pile 10 and the upper pile 20 are H-shaped steel piles, and webs (flat portions) 11, 21 and flanges (flat portions) 12,
22. A joint steel plate 30 is attached to the upper end of the web 11 of the lower pile 10. Web 21 of upper pile 20
A substantially circular through hole 23 is formed at the lower end of the.
【００１５】継手鋼鈑３０は、溝形鋼で、ウエブ（平板
部）３１及びフランジ（平板部）３２を有する。この継
手鋼鈑３０が一対用意され、ウエブ３１は下杭及び上杭
であるＨ形鋼杭１０、２０のウエブ１１、２１の表面に
それぞれ重なり、フランジ３２はＨ形鋼杭１０、２０の
フランジ１１、２１の内側面にそれぞれ重なるものであ
る。そして、継手鋼鈑３０のウエブ３１の一端部には、
略円形状の通し孔３３が形成されている。この通し孔３
３は上杭２０のウエブ２１下端部の通し孔２３に対応す
るものである。The joint steel plate 30 is a channel steel and has a web (flat portion) 31 and a flange (flat portion) 32. A pair of the joint steel plates 30 are prepared, the web 31 overlaps the surfaces of the webs 11 and 21 of the H-shaped steel piles 10 and 20 as the lower pile and the upper pile, respectively, and the flange 32 is a flange of the H-shaped steel piles 10 and 20. 11 and 21 respectively. And, at one end of the web 31 of the joint steel plate 30,
A substantially circular through hole 33 is formed. This through hole 3
Reference numeral 3 corresponds to the through hole 23 at the lower end of the web 21 of the upper pile 20.
【００１６】以上の継手鋼鈑３０は、そのウエブ３１及
びフランジ３２の下半部が下杭１０の上端部のウエブ１
１及びフランジ１２に重ね合わせた状態で、その全周を
溶接することにより、下杭１０上端部に一体化されてい
る。なお、継手鋼鈑３０を下杭１０上端部にボルトやリ
ベット等により、杭の打設、引き抜きの際、支障となら
ないように固定してもよい。The above joint steel sheet 30 has a web 31 and a lower half of the flange 32 whose upper half is located at the upper end of the lower pile 10.
In the state of being superimposed on the flange 1 and the flange 12, the entire periphery thereof is welded to be integrated with the upper end of the lower pile 10. The joint steel plate 30 may be fixed to the upper end of the lower pile 10 with bolts, rivets, or the like so as not to hinder the driving or pulling of the pile.
【００１７】ここで、鋼杭としては、コンクリート杭は
含まないものとする。すなわち、実施の形態では、Ｈ形
鋼としているが、Ｉ形鋼や溝形鋼、山形鋼、鋼矢板、鋼
管杭などでもよい。また、実施の形態では、継手鋼鈑を
溝形鋼としたが、山形鋼、球平形鋼、平鋼、径の異なる
鋼管などとしてもよい。Here, the concrete pile is not included as the steel pile. That is, in the embodiment, an H-section steel is used, but an I-section steel, a channel steel, an angle iron, a steel sheet pile, a steel pipe pile, or the like may be used. Further, in the embodiment, the joint steel plate is a channel steel, but may be an angle steel, a spherical steel, a flat steel, a steel pipe having a different diameter, or the like.
【００１８】次に、本発明の鋼杭建て込み方法を説明す
る。まず、下杭建て込み工程では、図２（ａ）に示すよ
うに、削孔機（不図示）を用いて予め削孔部１を施工し
ておく。そして、一対の継手鋼鈑３０が上端部に備えら
れた下杭１０を、継手鋼鈑３０の通し孔３３にワイヤ
（ワイヤ４０参照）を通して、杭吊り機（不図示）によ
り削孔部１に吊り降ろす。この場合、下杭１０の上端部
が地面より突出するようにして、所定の高さまで吊り降
ろして、地上に設置した図示しない固定装置により固定
しておく。Next, a method for installing a steel pile according to the present invention will be described. First, in the lower pile building process, as shown in FIG. 2A, the drilling unit 1 is previously constructed using a drilling machine (not shown). Then, the lower pile 10 provided with the pair of joint steel plates 30 at the upper end is passed through a wire (see the wire 40) through the through hole 33 of the joint steel plate 30, and is passed through the hole 1 by a pile lifting machine (not shown). Hang it down. In this case, the lower pile 10 is suspended from a predetermined height so that the upper end of the lower pile 10 protrudes from the ground, and is fixed by a fixing device (not shown) installed on the ground.
【００１９】次の上下杭接続工程では、図２（ｂ）に示
すように、地上に突出して固定状態の下杭１０の上方
に、杭吊り機により上杭２０を吊り上げて接続を行う。
下杭１０上端部の一対の継手鋼鈑３０のウエブ３１の背
面同士の隙間に、上杭２０のウエブ２１下端部を挿入す
る。続いて、図２（ｃ）に示すように、重なり合った状
態の継手鋼鈑３０上端部の通し孔３３と上杭２０下端部
の通し孔２３に、連結部材をなすワイヤ４０を通してお
く。このワイヤ４０は、通し孔３３、２３で折り曲げて
上杭２０の上方まで延び、杭吊り機に吊り上げられる吊
りワイヤを兼ねている。なお、上杭２０の表面には、図
示しないが、その全面または部分的に予め、滑材を塗布
し、またはプラスチックカバーなどの引き抜き補助材を
設けておく。In the next step of connecting the upper and lower piles, as shown in FIG. 2 (b), the upper pile 20 is lifted by a pile lifting machine and connected above the lower pile 10 which is fixed above the ground.
The lower end of the web 21 of the upper pile 20 is inserted into the gap between the backs of the webs 31 of the pair of joint steel plates 30 at the upper end of the lower pile 10. Subsequently, as shown in FIG. 2C, a wire 40 serving as a connecting member is passed through the through hole 33 at the upper end of the joint steel plate 30 and the through hole 23 at the lower end of the upper pile 20 in the overlapping state. The wire 40 is bent at the through holes 33 and 23 and extends above the upper pile 20, and also serves as a suspension wire suspended by the pile suspension machine. Although not shown, a sliding material is applied to the entire surface or a part of the surface of the upper pile 20 in advance, or a pull-out auxiliary material such as a plastic cover is provided.
【００２０】次の上杭建て込み工程では、下杭１０の固
定を解除して、図２（ｄ）に示すように、上杭２０を杭
吊り機により吊り降ろして、下杭１０を着底させる。こ
こで、下杭１０を着底させない場合は、塩化ビニル管等
の容易に壊れる筒またはカバーの中に、ワイヤ４０を通
して固定しておくこともできる。In the next step of building the upper pile, the fixing of the lower pile 10 is released, and as shown in FIG. 2 (d), the upper pile 20 is suspended by a pile lifting machine, and the lower pile 10 is settled. Let it. Here, when the lower pile 10 is not settled, the wire 40 can be fixed in a tube or cover that is easily broken such as a vinyl chloride tube.
【００２１】次の連結材引き抜き工程並びにコンクリー
ト打設工程において、図２（ｅ）に示すように、通し孔
３３、２３に通してあったワイヤ４０を引き上げて通し
孔３３、２３から引き抜く。続いて、削孔部１の空隙を
埋めるためにコンクリート２を打設する。その後、コン
クリート２が固結するのを待つ。なお、下杭１０を着底
させない場合は、前記と逆に、コンクリート２を打設し
て、そのコンクリート２が固結した後に、ワイヤ４０を
引き抜く。また、モルタル混合土、コンクリート等を先
に削孔孔内に充填し、後から杭を建て込む場合も同様で
ある。As shown in FIG. 2 (e), the wire 40 that has passed through the through holes 33 and 23 is pulled up and pulled out from the through holes 33 and 23 in the subsequent connecting material pulling step and concrete placing step. Subsequently, concrete 2 is cast to fill the void in the drilled portion 1. Then, it waits for the concrete 2 to solidify. In the case where the lower pile 10 is not settled, the wire 2 is pulled out after the concrete 2 is cast and the concrete 2 is solidified. The same applies to the case where mortar mixed soil, concrete, and the like are filled in the borehole first, and piles are built later.
【００２２】以上により杭の建て込みを完了する。その
後、上杭２０または地表近くの土留め壁が不要になった
ときに、図２（ｆ）に示すように、上杭２０を杭引き抜
き機（不図示）を用いて引き抜く。With the above, the installation of the pile is completed. Thereafter, when the upper pile 20 or the retaining wall near the ground surface becomes unnecessary, the upper pile 20 is pulled out using a pile pulling machine (not shown) as shown in FIG.
【００２３】このように、上杭１１のみを容易に引き抜
くことができる。従って、以下の利点が得られる。 （１）長い鋼材でも上部のみ引き抜けるため必要な長さ
の範囲を確実に引き抜くことができ、別な掘削や土留め
を行う必要がない。 （２）継手部分で杭材の抵抗力が減少しないため、土留
め壁の場合の変位が一本ものと同様となるほか、例え
ば、上杭と下杭で鋼材の種類を変えられるため、土圧・
水圧の大きさに応じて経済的な土留め壁とすることがで
きる。 （３）上杭のみを引き抜き機を用いて引き抜き可能とす
ることで、土留めの場合の変形が大きくない部分のみ引
き抜けるため、鋼材の再利用が可能となる。また、振動
や騒音を従来工法より削減できて容易に引き抜くことが
できる。 （４）下杭１０に取り付けた継手鋼鈑３０が、上杭２０
のせん断方向の移動を制限しているので、せん断方向へ
のずれを防止することができ、確実に下杭１０が上杭２
０を支持して、上杭２０の上方への相対移動のみを可能
とし、上杭２０の下方への相対移動を阻止することがで
きる。Thus, only the upper pile 11 can be easily pulled out. Therefore, the following advantages are obtained. (1) Even a long steel material can be pulled out only in the upper part, so that the necessary length range can be reliably pulled out, and there is no need to perform another excavation or earth retaining. (2) Since the resistance of the pile material does not decrease at the joint, the displacement in the case of the retaining wall is the same as that of a single retaining wall. For example, since the type of steel material can be changed between the upper pile and the lower pile, Pressure
An economical retaining wall can be provided according to the magnitude of the water pressure. (3) By making it possible to pull out only the upper pile using a pulling-out machine, only the portion where deformation in the case of earth retaining is not large is pulled out, so that the steel material can be reused. In addition, vibration and noise can be reduced compared to the conventional method, and it can be easily pulled out. (4) The joint steel plate 30 attached to the lower pile 10 is
Is restricted in the shear direction, so that the shift in the shear direction can be prevented, and the lower pile 10 can be securely connected to the upper pile 2.
By supporting 0, only the relative movement of the upper stake 20 upward is allowed, and the relative movement of the upper stake 20 downward can be prevented.
【００２４】なお、以上の鋼杭建て込み方法の他、下杭
建て込み工程を省略し、上下杭接続工程、上下杭建て込
み工程を経て、連結材引き抜き工程並びにコンクリート
打設工程に至るようにすることも可能である。すなわ
ち、下杭建て込み工程を省略した上下杭接続工程では、
予め、下杭となるＨ形鋼杭１０の上端部に継手鋼鈑３０
を固定しておき、その継手鋼鈑３０に上杭となるＨ形鋼
杭２０の下端部を重ねて両通し孔２３、３３にワイヤ４
０を通しておく。そして、次の上下杭建て込み工程にお
いて、このように継手鋼鈑３０及びワイヤ４０を介して
連結状態の上下杭１０、２０を杭吊り機により一括して
吊り上げて削孔部１に吊り降ろす。すなわち、上杭２０
の上端部及びワイヤ４０を杭吊り機により吊り上げるこ
とで、継手鋼鈑３０及びワイヤ４０により連結状態の上
下杭１０、２０を一括して吊り上げてから削孔部１内に
建て込む。その後は、前述と同様の連結材引き抜き工程
並びにコンクリート打設工程に至る。In addition to the above-described steel pile building method, the lower pile building process is omitted, and the connection member pulling process and the concrete placing process are performed through the upper and lower pile connecting processes and the upper and lower pile building processes. It is also possible. In other words, in the upper and lower pile connection process that omitted the lower pile building process,
The joint steel plate 30 is previously placed on the upper end of the H-shaped steel pile 10 serving as the lower pile.
Is fixed, the lower end of the H-shaped steel pile 20 serving as the upper pile is overlapped on the joint steel plate 30 and the wire 4 is inserted into the through holes 23 and 33.
Pass through 0. Then, in the next step of building the upper and lower piles, the upper and lower piles 10 and 20 connected in this way via the joint steel plate 30 and the wire 40 are lifted all together by a pile lifting machine and lowered to the drilled portion 1. That is, the upper pile 20
The upper and lower piles 10 and 20 connected by the joint steel plate 30 and the wire 40 are lifted together by lifting the upper end portion of the wire 40 and the wire 40 by a pile lifting machine, and then built into the drilled portion 1. After that, the process proceeds to the same connection material drawing step and concrete placing step as described above.
【００２５】次に他の継手構造例を説明する。図３にお
いて、点線はＨ形鋼杭を示し、実線は継手鋼鈑を示す。
図３（ａ）は、Ｈ形鋼杭の四周を囲む角筒状の継手鋼鈑
５０を示したものである。図３（ｂ）は、Ｈ形鋼杭のフ
ランジを囲む折り返し形状の継手鋼鈑６０と、Ｈ形鋼杭
のウエブの両面に重なる平板状の継手鋼鈑６１とを示し
たものである。図３（ｃ）は、Ｈ形鋼杭のウエブ及びフ
ランジを包み込むように外周を覆う中抜きＨ形筒状の継
手鋼鈑７０を示したものである。図３（ｄ）は、Ｈ形鋼
杭のウエブ及びフランジが連続する直角部の内側面に溝
形鋼による継手鋼鈑８０を重ねたもので、この継手鋼鈑
８０を四カ所に設けたものである。図３（ｅ）は、Ｈ形
鋼杭のウエブ及びフランジが連続する直角部の内側面に
山形鋼による継手鋼鈑９０を重ねたもので、この継手鋼
鈑９０を四カ所に設けたものである。以上の継手鋼鈑
は、Ｈ形鋼杭の平板部に溶接またはボルト・ナットやリ
ベット等で固定する。Next, another example of the joint structure will be described. In FIG. 3, a dotted line indicates an H-shaped steel pile, and a solid line indicates a joint steel plate.
FIG. 3A shows a rectangular tubular joint steel plate 50 surrounding four circumferences of an H-shaped steel pile. FIG. 3B shows a folded joint steel plate 60 surrounding the flange of the H-shaped steel pile and a flat joint steel plate 61 overlapping both surfaces of the web of the H-shaped steel pile. FIG. 3C shows a hollow H-shaped tubular joint steel sheet 70 covering the outer periphery so as to wrap the web and flange of the H-shaped steel pile. FIG. 3 (d) is a diagram in which a joint steel plate 80 made of a channel steel is superposed on an inner side surface of a right angle portion where a web and a flange of an H-shaped steel pile are continuous, and the joint steel plate 80 is provided in four places. It is. FIG. 3 (e) shows an H-shaped steel pile in which a joint steel plate 90 made of angle iron is superposed on the inner surface of a right-angled portion where the web and flange are continuous, and the joint steel plate 90 is provided at four places. is there. The above-mentioned joint steel plate is fixed to the flat plate portion of the H-shaped steel pile by welding, bolts, nuts, rivets, or the like.
【００２６】次に、他の鋼杭用の継手構造例を説明す
る。図４において、点線で鋼管杭１００を示しており、
実線で継手鋼鈑を示している。図４（ａ）は、鋼管杭１
００の内周面において、直径方向に対向して重なる対を
なす湾曲板部１１１とその間を繋ぐ平行する平板部１１
２による継手鋼鈑１１０を示したものである。図４
（ｂ）は、鋼管杭１００の内周面に重なる円筒状の継手
鋼鈑１２０を示したものである。図４（ｃ）は、鋼管杭
１００の外周面に重なる円筒状の継手鋼鈑１３０を示し
たものである。Next, another example of a joint structure for a steel pile will be described. In FIG. 4, the steel pipe pile 100 is shown by a dotted line,
The joint steel plate is indicated by a solid line. FIG. 4A shows the steel pipe pile 1.
00, a pair of curved plate portions 111 diametrically opposed to each other and a parallel plate portion 11 connecting the curved plate portions 111 to each other.
2 shows a joint steel plate 110 according to FIG. FIG.
(B) shows the cylindrical joint steel plate 120 overlapping the inner peripheral surface of the steel pipe pile 100. FIG. 4C shows a cylindrical joint steel plate 130 overlapping the outer peripheral surface of the steel pipe pile 100.
【００２７】なお、以上の実施の形態においては、下杭
に継手鋼鈑を設けたが、本発明はこれに限定されるもの
ではなく、上杭に継手鋼鈑を設けてもよい。また、その
他、具体的な細部構造や手法についても適宜に変更可能
であることは勿論である。In the above embodiment, a joint steel plate is provided on the lower pile, but the present invention is not limited to this, and a joint steel plate may be provided on the upper pile. In addition, it goes without saying that specific detailed structures and methods can be appropriately changed.
【００２８】[0028]
【発明の効果】本発明によれば、鋼杭の継手構造部にお
いて、連結材を引き上げる等して通し孔から引き抜いて
おくことにより、必要な時期に、上杭を容易に引き抜く
ことができる。また、本発明によれば、継手鋼鈑及び連
結材により連結状態の上下杭を一括して吊り上げて削孔
部内に建て込むことができる。According to the present invention, the upper pile can be easily pulled out at the required time by pulling out the connecting member from the through hole by pulling up the connecting member in the joint structure of the steel pile. Further, according to the present invention, the upper and lower piles in the connected state can be lifted at once by the joint steel plate and the connecting member and can be built in the drilled portion.
【図１】本発明を適用した一実施の形態の鋼杭（Ｈ形
鋼）の継手構造部を示す分解斜視図である。FIG. 1 is an exploded perspective view showing a joint structure of a steel pile (H-section steel) according to an embodiment of the present invention.
【図２】本発明の鋼杭建て込み方法の施工手順を工程毎
（ａ）〜（ｆ）に示した図である。FIG. 2 is a view showing a construction procedure of a method for building a steel pile according to the present invention for each step (a) to (f).
【図３】他の継手構造例（ａ）〜（ｅ）を示した概略平
面図である。FIG. 3 is a schematic plan view showing another example of the joint structure (a) to (e).
【図４】他の鋼杭（鋼管）用の継手構造例（ａ）〜
（ｃ）を示した概略平面図である。FIG. 4 shows examples of joint structures (a) to other steel piles (steel pipes).
It is the schematic plan view which showed (c).
１ 削孔部 ２ 打設コンクリート １０ 下杭（鋼杭；Ｈ形鋼） １１ 平板部（ウエブ） １２ 平板部（フランジ） ２０ 上杭（鋼杭；Ｈ形鋼） ２１ 平板部（ウエブ） ２２ 平板部（フランジ） ２３ 通し孔 ３０ 継手鋼鈑 ３１ 平板部（ウエブ） ３２ 平板部（フランジ） ３３ 通し孔 ４０ 連結材（ワイヤ） ５０、６０、６１、７０、８０、９０ 継手鋼鈑 １００ 鋼杭（鋼管） １１０、１２０、１３０ 継手鋼鈑 DESCRIPTION OF SYMBOLS 1 Drilling part 2 Casting concrete 10 Lower pile (steel pile; H-shaped steel) 11 Flat part (web) 12 Flat part (flange) 20 Upper pile (steel pile; H-shaped steel) 21 Flat part (web) 22 Flat Part (flange) 23 Through hole 30 Joint steel plate 31 Flat plate part (web) 32 Flat plate part (flange) 33 Through hole 40 Connecting material (wire) 50, 60, 61, 70, 80, 90 Joint steel plate 100 Steel pile ( Steel pipe) 110, 120, 130 Fitting steel plate
Claims (5)
した継手鋼鈑と、 継手鋼鈑の鋼杭端部からの突出部に形成した通し孔と、 下杭または上杭の他方の鋼杭の端部に形成した通し孔
と、 継手鋼鈑に他方の鋼杭の端部を重ねた状態で両通し孔に
通され、かつ、両通し孔で折り曲げられて上杭の上方ま
で延びる連結材と、からなることを特徴とする鋼杭用の
継手構造。1. A joint structure for a steel pile, comprising: a joint steel plate fixed to one of a lower pile and an upper pile by projecting from an end thereof; and a protrusion of the joint steel plate from the end of the steel pile. Through hole formed at the end of the other steel pile of the lower pile or the upper pile, and the through hole formed at the end of the other steel pile on the joint steel plate. And it is bent by both through holes and
Joint structure for steel piles, wherein the coupling member, in that it consists of extending.
重ねる一対の継手鋼鈑を備えることを特徴とする請求項
１記載の鋼杭用の継手構造。2. The joint structure for a steel pile according to claim 1, further comprising a pair of joint steel plates superposed on both sides of an end of the flat plate portion of the steel pile having the flat plate portion.
の索具であることを特徴とする請求項１記載の鋼杭用の
継手構造。3. The joint structure for a steel pile according to claim 1, wherein the connecting member is a rigging device such as a suspension wire, a rope or a chain.
造を用い、 上端部に継手鋼鈑が固定された鋼杭を削孔部内に建て込
む下杭建て込み工程と、 下杭上端部の継手鋼鈑に上杭下端部を重ねて両通し孔に
連結材を通す上下杭接続工程と、 削孔部内に上杭を建て込む上杭建て込み工程と、 両通し孔から連結材を引き抜く連結材引き抜き工程と、 からなることを特徴とする鋼杭建て込み方法。4. A lower pile mounting step of using a joint structure according to any one of claims 1 to 3 to build a steel pile having a joint steel plate fixed at an upper end into a drilled hole, and a lower pile upper end. pulling the superimposed over pile lower end the joint steel sheet and the upper and lower pile connection step of passing the coupling member to both the through-holes, a step like an anchor pile on Tatekomu the Uekui the drilling portion, the coupling member from both the through-holes A method for building a steel pile, comprising: a connecting material extracting step;
を用い、 鋼杭の上端部に固定して備えられた継手鋼鈑に他の鋼杭
の下端部を重ねて両通し孔に連結材を通す上下杭接続工
程と、 継手鋼鈑及び連結材を介して連結状態の上下杭を一括し
て吊り上げて削孔部内に建て込む上下杭建て込み工程
と、 両通し孔から連結材を引き抜く連結材引き抜き工程と、
からなることを特徴とする鋼杭建て込み方法。5. The joint structure according to any one of claims 1 to 3, wherein a lower end of another steel pile is overlapped with a joint steel plate fixed to an upper end of the steel pile and provided in both through holes. An upper and lower pile connection process that passes through the connecting material, a vertical pile building process in which the connected upper and lower piles are lifted together through the joint steel plate and the connecting material, and built into the drilled hole, and the connecting material is removed from both through holes A connecting material extracting process for extracting,
A method for installing a steel pile, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000054049A JP3321138B2 (en) | 2000-02-29 | 2000-02-29 | Joint structure for steel pile and method of building steel pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000054049A JP3321138B2 (en) | 2000-02-29 | 2000-02-29 | Joint structure for steel pile and method of building steel pile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001241037A JP2001241037A (en) | 2001-09-04 |
| JP3321138B2 true JP3321138B2 (en) | 2002-09-03 |
Family
ID=18575355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000054049A Expired - Fee Related JP3321138B2 (en) | 2000-02-29 | 2000-02-29 | Joint structure for steel pile and method of building steel pile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3321138B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4626431B2 (en) * | 2005-07-25 | 2011-02-09 | 鹿島建設株式会社 | Steel pipe sheet pile joint, steel pipe sheet pile joint structure, and steel pipe sheet pile construction method |
| JP5235748B2 (en) * | 2009-03-25 | 2013-07-10 | 新日鐵住金株式会社 | Wall metal fittings and underground continuous wall construction method |
| JP5268732B2 (en) * | 2009-03-25 | 2013-08-21 | 株式会社テノックス | Wall member for underground continuous wall, underground continuous wall construction method, and underground continuous wall |
| JP5210221B2 (en) * | 2009-03-30 | 2013-06-12 | 大成建設株式会社 | Separation structure of core material and method for constructing start shaft of shield excavator using the same |
| JP6461457B2 (en) * | 2013-08-09 | 2019-01-30 | 株式会社大林組 | Pile and pile construction method |
| JP6548515B2 (en) * | 2015-08-26 | 2019-07-24 | 大成建設株式会社 | Sampling method and sampling tube |
| JP7486392B2 (en) | 2020-09-29 | 2024-05-17 | 戸田建設株式会社 | How to insert the H-shaped retaining steel |
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2000
- 2000-02-29 JP JP2000054049A patent/JP3321138B2/en not_active Expired - Fee Related
Also Published As
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| JP2001241037A (en) | 2001-09-04 |
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