JP2000017642A - Working method for pile head portion of diagonally assembled pile - Google Patents
Working method for pile head portion of diagonally assembled pileInfo
- Publication number
- JP2000017642A JP2000017642A JP10185077A JP18507798A JP2000017642A JP 2000017642 A JP2000017642 A JP 2000017642A JP 10185077 A JP10185077 A JP 10185077A JP 18507798 A JP18507798 A JP 18507798A JP 2000017642 A JP2000017642 A JP 2000017642A
- Authority
- JP
- Japan
- Prior art keywords
- pile
- pile head
- half precast
- slanted
- head
- 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.)
- Granted
Links
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、海上等に人工地
盤を高く支持するため実海域に構築された斜組杭の杭頭
部を一体化処理する技術分野に属し、更に云えば高所作
業となる斜組杭の杭頭部の一体化処理をハーフプレキャ
スト版を用いて無足場、無支保工で安全、確実、迅速に
低コストで施工する杭頭部施工方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of integrated processing of a pile head of a crossed pile constructed in an actual sea area for supporting an artificial ground at a high sea level or the like. The present invention relates to a pile head construction method for safely, reliably, quickly and inexpensively constructing an integrated process of a pile head of a diagonally set pile using a half precast plate with no scaffolding and no support.
【０００２】[0002]
【従来の技術】従来、海上等に人工地盤を高く支持する
ため実海域に構築された斜組杭の杭頭部を一体化処理す
る技術としては、下記の工法が考えられ実施されてい
る。 斜組杭の杭頭部に受け金具を取り付け、同受け金具
で型枠（ハーフプレキャスト版）等に仮置き、支持させ
る工法。 斜組杭の周囲（海上）に支保工及び足場を設け、支
保工で型枠（ハーフプレキャスト版）等を支持させる工
法。2. Description of the Related Art Conventionally, the following construction method has been considered and implemented as a technique for integrally processing a pile head of an inclined pile pile constructed in an actual sea area in order to highly support an artificial ground at sea or the like. A mounting method in which a receiving bracket is attached to the pile head of an angled pile, temporarily placed on a formwork (half precast version), etc., and supported by the receiving bracket. A method of providing supports and scaffolding around the crossed piles (at sea) and supporting the formwork (half precast version) etc. with the supports.
【０００３】[0003]
【本発明が解決しようとする課題】しかしながら、前記
の工法は、受け金具が型枠等の重量を杭との摩擦力の
みで支持する構造なので、受け金具自体も大規模な構造
になり、受け金具の取り付け、取り外しが困難で、仮設
工事に手間と時間が掛かるという問題があった。また、
前記の工法は、支保工を製作し、海底等から立ち上げ
た形に設置する作業が生じるので、仮設工事に多大の作
業時間を要し、コストが嵩むという問題点があった。However, according to the above-mentioned construction method, since the receiving bracket supports the weight of the formwork or the like only by the frictional force with the pile, the receiving bracket itself has a large-scale structure. There was a problem that it was difficult to attach and detach the metal fittings, and it took time and effort for temporary construction. Also,
According to the above-mentioned construction method, there is a problem that a work for manufacturing a shoring work and installing the shoring work on the sea floor or the like is required.
【０００４】したがって、本発明の目的は、ハーフプレ
キャスト版そのものを作業足場に利用し、斜組杭の杭頭
部を無足場、無支保工で安全、確実、迅速に低コストで
施工できる斜組杭の杭頭部施工方法を提供することであ
る。Accordingly, an object of the present invention is to use a half-precast plate itself as a work scaffold, and to install a slanted pile pile head safely, reliably, quickly and at low cost with no scaffolding and no support. An object of the present invention is to provide a pile head construction method for a pile.
【０００５】[0005]
【課題を解決するための手段】上述の課題を解決するた
めの手段として、請求項１に記載した発明に係る斜組杭
の杭頭部施工方法は、少なくとも２本の斜杭の杭頭部を
集合させ各杭頭部に巻き付けた杭頭部補強板同士を連結
プレートで互いに接合して斜組杭とする工程と、前記斜
組杭の各杭頭部の上面を水平化処理する工程と、前記斜
組杭の杭頭部を包囲する環状体で内側に作業用床部を有
し同斜組杭の杭頭部の上面へ仮置きする仮置き材を付設
して成るハーフプレキャスト版を、クレーン等の重機で
吊り、前記斜組杭の杭頭部を包囲する高さ位置に前記仮
置き材により略水平に仮置きし、位置、レベルを調整す
る工程と、前記斜組杭の杭頭部と前記ハーフプレキャス
ト版とをアングル等の本つなぎ材で接合する工程と、前
記ハーフプレキャスト版の下端開口部に底型枠を設ける
工程と、前記斜組杭の杭頭部及び前記ハーフプレキャス
ト版の内部の配筋作業を行い、同ハーフプレキャスト版
の内部にコンクリートを打設して前記斜組杭の杭頭部と
ハーフプレキャスト版とを一体化させる工程と、から成
ることをそれぞれ特徴とする。According to a first aspect of the present invention, there is provided a method for constructing a pile head of a slanted pile according to the present invention. A step of joining the pile head reinforcing plates wound around each pile head together to form a slanted pile by connecting plates, and a step of leveling the upper surface of each pile head of the slanted pile. A half-precast plate comprising a ring body surrounding the pile head of the slanted pile, a work floor on the inner side, and a temporary placing material for temporary placement on the upper surface of the pile head of the slanted pile. Suspending with a heavy machine such as a crane, temporarily placing the pile head in a substantially horizontal position with the temporary placing material at a height position surrounding the pile head, and adjusting the position and level; Joining the head and the half precast plate with a permanent connecting material such as an angle; A step of providing a bottom formwork at the lower end opening of the slab, and performing a reinforcing work inside the pile head of the diagonal pile and the half precast slab, and placing concrete inside the half precast slab. Integrating the pile head of the diagonal pile and the half precast plate.
【０００６】請求項２に記載した発明に係る斜組杭の杭
頭部施工方法は、少なくとも２本の斜杭の杭頭部を集合
させ各杭頭部に巻き付けた杭頭部補強板同士を連結プレ
ートで互いに接合して斜組杭とする工程と、前記斜組杭
の各杭頭部の上面を水平化処理する工程と、前記水平化
処理した斜組杭の杭頭部の上面にＨ鋼桁を設ける工程
と、前記斜組杭の杭頭部を包囲する環状体で内側に作業
用床部とアンカー筋等の接合部材を有する形態のハーフ
プレキャスト版を、クレーン等の重機で吊り、前記斜組
杭の杭頭部を包囲する高さ位置に略水平に仮置きし、位
置、レベルを調整する工程と、前記Ｈ鋼桁と前記ハーフ
プレキャスト版のアンカー筋等の接合部材とを接合する
工程と、前記ハーフプレキャスト版の下端開口部に底型
枠を設ける工程と、前記斜組杭の杭頭部及び前記ハーフ
プレキャスト版の内部の配筋作業を行い、同ハーフプレ
キャスト版の内部にコンクリートを打設して前記斜組杭
の杭頭部とハーフプレキャスト版とを一体化させる工程
と、から成ることをそれぞれ特徴とする。According to a second aspect of the present invention, there is provided a method of constructing a pile head of a slanted pile according to the present invention, wherein pile pile heads of at least two slant piles are assembled and wound around each pile head. A step of joining to each other with a connecting plate to form a stake pile, a step of leveling the upper surface of each pile head of the stake pile, and a step of placing H on the upper surface of the pile head of the leveled stake pile. A step of providing a steel girder, and a half precast plate in the form of a ring body surrounding the pile head of the diagonal pile and having a joining member such as a working floor and an anchor bar inside, suspended by a heavy machine such as a crane, A step of temporarily placing the pile head in a substantially horizontal position at a height position surrounding the pile head, adjusting a position and a level, and joining the H steel girder to a joining member such as an anchor bar of the half precast plate. And a step of providing a bottom mold at the lower end opening of the half precast plate, Reinforcing the pile head of the skewed pile and the inside of the half precast slab, casting concrete inside the half precast slab, and integrating the pile head of the skewed pile with the half precast slab And a step of forming
【０００７】請求項３に記載した発明に係る斜組杭の杭
頭部施工方法は、請求項１に記載した仮置き材は、ハー
フプレキャスト版の位置に突出されたアンカーボルトを
基礎として組み立てた複数のアーチと、相対峙するアー
チの下方に通したＨ鋼桁とで構成されることを特徴とす
る。請求項４に記載した発明に係る斜組杭の杭頭部施工
方法は、請求項１又は２に記載した斜杭を２本用い、同
２本の斜杭を平面的に略１８０度向きを変えて対称的に
配設し、同２本の斜杭の杭頭部に巻き付けた杭頭部補強
板同士を連結プレートで互いに接合して斜組杭とするこ
とを特徴とする。According to a third aspect of the present invention, there is provided a method for constructing a pile head of an inclined pile according to the invention, wherein the temporary placing material is assembled on the basis of an anchor bolt protruding at a position of a half precast plate. It is characterized by comprising a plurality of arches and an H-steel girder extending below the opposing arches. A method for constructing a pile head of a slanted pile according to the invention described in claim 4 uses two of the slanted piles described in claim 1 or 2, and turns the two slanted piles approximately 180 degrees in a plane. Alternatively, the pile head reinforcing plates wound around the pile heads of the two slanted piles are joined to each other with a connecting plate to form a slanted pile.
【０００８】請求項５に記載した発明に係る斜組杭の杭
頭部施工方法は、請求項１又は２に記載した斜組杭を構
成する各杭頭部の上面の高さ位置を略同等レベルに水平
化処理することを特徴とする。請求項６に記載した発明
に係る斜組杭の杭頭部施工方法は、請求項１又は２に記
載した底型枠は斜組杭の杭頭部に吊り支持させることを
特徴とする。According to a fifth aspect of the present invention, there is provided a method for constructing a pile head of an inclined pile according to the invention, wherein the height positions of the upper surfaces of the pile heads constituting the inclined pile are substantially equal. It is characterized in that leveling processing is performed on a level. According to a sixth aspect of the present invention, there is provided a method for constructing a pile head of a slanted pile, wherein the bottom formwork according to the first or second aspect is suspended and supported on a pile head of the slanted pile.
【０００９】[0009]
【発明の実施の形態及び実施例】以下に、図示した本発
明の実施形態及び実施例を説明する。図１Ａは、実海域
の海底深くに構築し海上にまで立ち上げられた２本の斜
杭１，１が、水平面に対し約６５度傾けられ、これを平
面的に見れば略１８０度向きを変えて対称的に配置さ
れ、各斜杭１，１の杭頭部が海上で集合した形態を示
し、更に前記２本の斜杭１，１の各杭頭部に杭頭部補強
板２を巻き付けた段階を示している。図１Ｂは、２本の
斜杭１，１の前記杭頭部補強板２，２同士を連結プレー
ト３で互いに接合して斜組杭１０とした段階を示してい
る。図中の符号４は海面を示している。なお、前記斜杭
１は海底地盤のみならず、陸地の地中に設置し空中高く
構築した場合にも本発明を同様に実施することができ
る。また、斜杭１の傾斜角度は前記した約６５度に限定
されず、地震等の水平力に十分抵抗可能な範囲で決定さ
れる。更に、この実施例では斜杭１を２本用いて実施し
ているが、これに限定されない。斜杭１の杭頭部が集合
可能な範囲で３本でも４本でも実施できる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the illustrated embodiments and examples of the present invention will be described. FIG. 1A shows that two inclined piles 1, 1 built deep in the seabed of the actual sea area and raised up to the sea are tilted at about 65 degrees with respect to the horizontal plane, and when viewed in a plane, they are oriented at about 180 degrees. Alternately, the pile heads of the slanted piles 1 and 1 are arranged symmetrically, and the pile heads of the two slanted piles 1 and 1 show a pile head reinforcing plate 2 on each pile head. The winding stage is shown. FIG. 1B shows a stage in which the pile head reinforcing plates 2, 2 of two slant piles 1, 1 are joined to each other with a connecting plate 3 to form a slanted pile 10. Reference numeral 4 in the figure indicates the sea surface. The present invention can be similarly implemented not only in the case of the seabed ground but also in the case where the slanted pile 1 is installed underground on the land and constructed high in the air. Further, the inclination angle of the inclined pile 1 is not limited to the above-mentioned about 65 degrees, and is determined within a range capable of sufficiently resisting a horizontal force such as an earthquake. Furthermore, in this embodiment, two slanted piles 1 are used, but the present invention is not limited to this. Three or four pile heads can be implemented as long as the pile heads of the inclined pile 1 can be assembled.
【００１０】図２は、前記斜組杭の各杭頭部の上面をコ
ンクリートカッター等で切断して水平化処理する段階を
示している。このとき、斜組杭の各杭頭部の上面の高さ
位置は、ハーフプレキャスト版に付設された仮置き材を
仮置きし易いように略同等レベルに形成する。図３は、
前記斜組杭１０の杭頭部を包囲する環状体で、内側に作
業用床部５ａを有し、斜組杭の杭頭部へ仮置きする仮置
き材６を付設して成るハーフプレキャスト版５を、クレ
ーンのワイヤ１７で吊り、斜組杭１０の杭頭部の上方か
ら斜組杭の杭頭部を包囲する高さ位置まで吊り込む（下
降させる）直前の段階を示している。前記ワイヤ１７
は、前記ハーフプレキャスト版５の上部に設けた吊り部
５ｂに連結される。前記ハーフプレキャスト版５に付設
された仮置き材６は、図４Ａ，Ｂに示した例の場合は、
前記ハーフプレキャスト版５の作業用床部５ａの位置に
突出されたアンカーボルト８を基礎として組み立てたア
ーチ１２を４体設け、相対峙する二つのアーチ１２，１
２の下に通したＨ鋼桁７とで構成される。FIG. 2 shows a step of cutting the upper surface of each pile head of the diagonal pile with a concrete cutter or the like and performing a leveling process. At this time, the height position of the upper surface of each pile head of the inclined pile is formed at substantially the same level so that the temporary placing material attached to the half precast plate is easily placed temporarily. FIG.
A half-precast plate which is an annular body surrounding the pile head of the slanted pile 10 and has a working floor 5a on the inner side and a temporary placing material 6 for temporarily placing the piled pile on the pile head. 5 shows a stage immediately before hanging (lowering) 5 from the top of the pile head of the diagonal pile 10 to the height position surrounding the pile head of the diagonal pile 10 by hanging the wire 5 of the crane. The wire 17
Is connected to a suspending portion 5b provided above the half precast plate 5. The temporary placing material 6 attached to the half precast plate 5 is, in the case of the example shown in FIGS.
Four arches 12 assembled on the basis of the anchor bolts 8 protruding from the half precast plate 5 at the position of the working floor 5a are provided, and the two arches 12, 1 facing each other are provided.
2 and an H steel girder 7 passed underneath.
【００１１】前記Ｈ鋼桁７は、予め作業用床部５ａにお
ける斜組杭１０の杭頭部へ当接する位置に載置される。
図示例の場合、２本のＨ鋼桁７はそれぞれ斜組杭１０の
配設方向と略直角方向にバランス良く載置して実施して
いる。前記Ｈ鋼桁７の長手方向の長さは、作業用床部５
ａの上に載り、前記ハーフプレキャスト版５の下端開口
部から落下する虞が全く無い十分な長さとされる。The H steel girder 7 is previously placed on the working floor 5a at a position where it comes into contact with the pile head of the slanted pile 10.
In the case of the illustrated example, the two H steel girders 7 are mounted with good balance in a direction substantially perpendicular to the direction in which the slanted piles 10 are arranged. The longitudinal length of the H steel girder 7 is
The half precast plate 5 has a sufficient length so as not to fall from the lower end opening of the half precast plate 5 at all.
【００１２】前記アーチ１２は、前記Ｈ鋼桁７の両側縁
近傍位置の作業用床部５ａから立ち上げた２本のアンカ
ーボルト８，８を、その上端部位置で横つなぎとしての
鋼製プレート９をナット１１により一体的に結合した構
造である。前記各アンカーボルト８は、前記ハーフプレ
キャスト版５を前記斜組杭１０の杭頭部に仮置きするに
適した長さとされ、その上部にレベル調整用のネジ切り
部を有する。なお、前記Ｈ鋼桁７の本数及び配置は、ハ
ーフプレキャスト版を前記斜組杭１０の杭頭部を包囲す
る高さ位置に仮置きするに適した本数及び配置であれば
良く、図示例の限りではない。また、前記Ｈ鋼桁７と鋼
製プレート９は予め溶接しておいても良い。The arch 12 is a steel plate serving as a horizontal link between two anchor bolts 8, 8 raised from the work floor 5a near the both side edges of the H steel girder 7 at the upper end thereof. 9 is integrally connected by a nut 11. Each of the anchor bolts 8 has a length suitable for temporarily placing the half precast plate 5 on the pile head of the slanted pile 10, and has a threaded portion for level adjustment at an upper portion thereof. The number and arrangement of the H steel girders 7 may be any number and arrangement suitable for temporarily placing the half precast plate at a height position surrounding the pile head of the slanted pile 10, as shown in the illustrated example. Not as long. Further, the H steel girder 7 and the steel plate 9 may be welded in advance.
【００１３】図５は、前記ハーフプレキャスト版５を前
記斜組杭１０の杭頭部を包囲する高さ位置へ吊り込み、
略水平に仮置きした段階を示している。前記仮置きと
は、クレーンのワイヤ１７でハーフプレキャスト版５を
下降させ、前記斜組杭１０の各杭頭部が前記Ｈ鋼桁７へ
当接しつつ更に下降を進め、同Ｈ鋼桁７を前記鋼製プレ
ート９へ当接するまで下降させて、前記ハーフプレキャ
スト版５の高さ（レベル）及び水平位置を適正に調整す
ることを云う。微細なレベル差の調整は、前記アンカー
ボルト８へねじ込んだナット１１の操作で行う。前記仮
置きに際して、作業員は前記ハーフプレキャスト版５の
作業用床部５ａに乗り込む。FIG. 5 shows that the half precast plate 5 is suspended at a height position surrounding the pile head of the slanted pile 10,
This shows a stage that is temporarily placed substantially horizontally. The temporary placing means that the half precast plate 5 is lowered by the wire 17 of the crane, and each pile head of the diagonal pile 10 is further lowered while being in contact with the H steel girder 7. It means that the height (level) and the horizontal position of the half precast plate 5 are properly adjusted by lowering the plate until it comes into contact with the steel plate 9. Fine adjustment of the level difference is performed by operating the nut 11 screwed into the anchor bolt 8. At the time of the temporary placement, a worker gets on the working floor 5a of the half precast plate 5.
【００１４】前記ハーフプレキャスト版５は、横が３７
００ｍｍ程度、縦が３５００ｍｍ程度、高さは１４００
ｍｍ程度の大きさの直方体形状のＲＣ造環状体で、斜組
杭を避けた位置に作業用床部５ａ（図４Ａ参照）が設け
られている。前記ハーフプレキャスト版５の内側には便
宜上図示を省略した打ち込み鉄筋が露出されている。図
６は、前記の位置決め後に、前記斜組杭１０の杭頭部と
前記位置決めされたハーフプレキャスト版５とをアング
ル等の本つなぎ材１３を用いて溶接接合してハーフプレ
キャスト版５の位置を固定（確定）し、その後クレーン
のワイヤ１７を撤去した段階を示している。本つなぎ材
１３は、ハーフプレキャスト版５に用意した連結部と杭
頭部補強板２の連結部とを連結している。前記本つなぎ
材１３の本数及び配置は、前記斜組杭１０の杭頭部とハ
ーフプレキャスト版５とをしっかり接合できる本数及び
配置であれば良い。前記の接合手段は溶接には限らず、
ボルト止め等でも良い。The half precast plate 5 has a width of 37
About 00mm, length about 3500mm, height 1400
A work floor part 5a (see FIG. 4A) is provided at a position avoiding the diagonal pile, which is a rectangular parallelepiped RC annular body having a size of about mm. A driving reinforcing bar (not shown) is exposed inside the half precast plate 5 for convenience. FIG. 6 shows the position of the half precast plate 5 by welding and joining the pile head of the diagonal pile 10 and the positioned half precast plate 5 using a permanent connecting material 13 such as an angle after the positioning. It shows a stage in which the wire 17 of the crane has been fixed (fixed) and then removed. The connecting member 13 connects the connecting portion prepared on the half precast plate 5 and the connecting portion of the pile head reinforcing plate 2. The number and arrangement of the connecting members 13 may be any number and arrangement that can firmly join the pile head of the diagonal pile 10 and the half precast plate 5. The joining means is not limited to welding,
It may be bolted or the like.
【００１５】図６はまた、前記ハーフプレキャスト版５
の下端開口部に底型枠１５を敷設し、これを斜組杭１０
の杭頭部から吊り下げたワイヤ１４で支持させた段階も
示している。前記底型枠１５は、２本の斜杭１，１の水
平な断面形状を切り抜いた長方形状の鉄板を、ハーフプ
レキャスト版５の長手方向（図６の左右方向）に略二分
した二つの底型枠片を図６の紙面の垂直方向へ差し入れ
て両先端を当接させ、同当接面を溶接接合して敷設す
る。そして、斜組杭１０の杭頭部から吊り下げた複数本
のワイヤ１４により吊り支持させる。FIG. 6 also shows the half precast plate 5
A bottom formwork 15 is laid in the opening at the lower end of the
Also shows a stage supported by wires 14 suspended from the pile head. The bottom formwork 15 is formed by cutting a rectangular iron plate obtained by cutting out the horizontal cross-sectional shape of the two inclined piles 1, into approximately two parts in the longitudinal direction of the half precast plate 5 (the left-right direction in FIG. 6). The mold piece is inserted in the direction perpendicular to the plane of the paper of FIG. 6, the two ends are brought into contact, and the contact surfaces are laid by welding. Then, the wire is suspended and supported by a plurality of wires 14 suspended from the pile head of the slanted pile 10.
【００１６】図７は、前記斜組杭１０の杭頭部及び前記
ハーフプレキャスト版５の内部に鉄筋２０の配筋作業を
行った段階を示す。図８は、前記ハーフプレキャスト版
５の内部にコンクリート１６を打設して前記斜組杭１０
の杭頭部とハーフプレキャスト版５との一体化処理を行
い、斜組杭１０の杭頭部施工の工程を完了した段階を示
している。FIG. 7 shows a stage in which a reinforcing bar 20 is arranged in the pile head of the slanted pile 10 and the inside of the half precast plate 5. FIG. 8 shows a concrete precast 16 placed inside the half precast plate 5 and
2 shows a stage in which the integration process of the pile head and the half precast plate 5 is performed to complete the process of pile head construction of the slanted pile 10.
【００１７】こうして上記の各工程を経て一体化処理さ
れる斜組杭１０の杭頭部は、前記ハーフプレキャスト版
５の作業用床部５ａが足場及び支保工を兼ねるので、無
足場、無支保工で実施できる。また、受け金具や支保工
を製作し設置する工程が無いので、迅速に低コストで実
施できる。更に、本つなぎ材１３を複数本用いて斜組杭
１０の杭頭部とハーフプレキャスト版５をしっかり接合
しているので、安全、且つ確実に実施できる。The pile head of the slanted pile 10 that is thus integrated through the above-described steps is free from scaffolding and unsupported because the working floor 5a of the half precast plate 5 also serves as a scaffold and a support. It can be carried out by engineering. In addition, since there is no step of manufacturing and installing a receiving bracket or a shoring, it can be implemented quickly and at low cost. In addition, since the pile head of the diagonally assembled pile 10 and the half precast plate 5 are firmly joined by using a plurality of the connecting members 13, the operation can be performed safely and reliably.
【００１８】次に、図９Ａ，Ｂは異なる実施例を示して
いる。この実施例は、水平化処理した斜組杭の杭頭部の
上面、特に２本の斜杭の上面に架設する２本のＨ鋼桁１
８を仮置きし、一方、ハーフプレキャスト版５はクレー
ンのワイヤで吊ったまま高さ（レベル）及び水平位置を
適正に調整した後、前記Ｈ鋼桁１８とハーフプレキャス
ト版５とをアンカー鉄筋１９で溶接接合することを特徴
とする。その後底型枠を敷設し、鉄筋を配筋し、コンク
リート打設する一連の工程を経て一体化処理される。な
お、必要に応じて、２本のＨ鋼桁１８同士を相互に剛結
して実施しても良い。本実施例の場合もハーフプレキャ
スト版５の作業用床部５ａが足場及び支保工を兼ねるの
で、無足場、無支保工で実施できる。また、受け金具や
支保工を製作し設置する工程が無いので、迅速に低コス
トで実施できる。更に、本つなぎ材１３を複数本用いて
斜組杭１０の杭頭部とハーフプレキャスト版５をしっか
り接合しているので、安全、且つ確実に実施できる。Next, FIGS. 9A and 9B show different embodiments. In this embodiment, two H steel girders 1 erected on the upper surface of the pile head of the leveled diagonal pile, especially on the upper surface of two diagonal piles are shown.
8 while the half precast plate 5 is suspended by a crane wire and the height (level) and the horizontal position are properly adjusted, and then the H steel girders 18 and the half precast plate 5 are connected to the anchor reinforcing bars 19. It is characterized in that it is welded and joined. After that, it is integrated through a series of steps of laying the bottom formwork, arranging reinforcing steel, and placing concrete. If necessary, the two H steel girders 18 may be rigidly connected to each other. Also in the case of the present embodiment, since the work floor 5a of the half precast plate 5 also serves as a scaffold and a support, it can be carried out without a scaffold or a support. In addition, since there is no step of manufacturing and installing a receiving bracket or a shoring, it can be implemented quickly and at low cost. In addition, since the pile head of the diagonally assembled pile 10 and the half precast plate 5 are firmly joined by using a plurality of the connecting members 13, the operation can be performed safely and reliably.
【００１９】[0019]
【本発明が奏する効果】本発明の斜組杭の杭頭部施工方
法によれば、 ハーフプレキャスト版の作業用床部が足場及び支保
工を兼ねるので、無足場、無支保工で実施できる。ま
た、受け金具や支保工を製作し、設置する工程が無いの
で、迅速に低コストで実施できる。 本つなぎ材を複数本用いて斜組杭の杭頭部とハーフ
プレキャスト版をしっかり接合しているので、安全、且
つ確実に実施できる。もちろん、斜組杭の杭頭部及び前
記ハーフプレキャスト版の内部の配筋作業も安全に行い
得る。[Effects of the present invention] According to the method for constructing a pile head of an inclined pile according to the present invention, since the work floor of the half precast plate doubles as a scaffold and a support, it can be carried out without a scaffold or a non-support. In addition, since there is no step of manufacturing and installing a receiving fitting or a shoring, it can be implemented quickly and at low cost. Since the pile head and the half precast slab of the diagonal pile are firmly joined by using a plurality of the connecting members, the operation can be performed safely and reliably. Of course, the work of arranging the bars inside the pile head of the diagonal pile and the half precast plate can be performed safely.
【図１】Ａは、２本の斜杭を海上で集合させる形態を示
した正面図であり、Ｂは、２本の斜杭の杭頭部を連結プ
レートで互いに接合する段階を示した正面図である。FIG. 1A is a front view showing a form in which two slanted piles are assembled on the sea, and FIG. 1B is a front view showing a stage in which pile heads of two slanted piles are joined to each other by a connecting plate. FIG.
【図２】斜組杭の杭頭部の上面を水平化処理した段階を
示した正面図である。FIG. 2 is a front view showing a stage in which the upper surface of the pile head of the inclined pile is leveled.
【図３】ハーフプレキャスト版をクレーン等により斜組
杭の杭頭部の高さ位置に下降させる段階を示した断面図
である。FIG. 3 is a sectional view showing a stage of lowering a half precast plate to a height position of a pile head of a diagonal pile by a crane or the like.
【図４】Ａは、ハーフプレキャスト版を示した平面図で
あり、Ｂは、ＡのＢ−Ｂ線矢視断面図である。FIG. 4A is a plan view showing a half precast plate, and FIG. 4B is a sectional view of A taken along line BB.
【図５】ハーフプレキャスト版を斜組杭の杭頭部に仮置
きした段階を示した断面図である。FIG. 5 is a cross-sectional view showing a stage in which a half precast plate is temporarily placed on a pile head of a diagonal pile.
【図６】斜組杭の杭頭部とハーフプレキャスト版とを本
つなぎ材で固定し底型枠を敷設した段階を示した断面図
である。FIG. 6 is a cross-sectional view showing a stage in which a pile head of a diagonal pile and a half precast plate are fixed with a connecting member and a bottom formwork is laid.
【図７】斜組杭の杭頭部及びハーフプレキャスト版の鉄
筋の配筋作業を行った段階を示した断面図である。FIG. 7 is a cross-sectional view showing a stage in which a reinforcing head of a pile head of a diagonally assembled pile and a reinforcing bar of a half precast slab are subjected to work.
【図８】ハーフプレキャスト版の内部にコンクリートを
打設した段階を示した断面図である。FIG. 8 is a cross-sectional view showing a stage in which concrete is cast inside a half precast plate.
【図９】Ａは、異なる実施例を示した平面図であり、Ｂ
は、ＡのＢ−Ｂ線矢視断面図である。FIG. 9A is a plan view showing a different embodiment, and FIG.
FIG. 3 is a sectional view taken along line BB of A.
１ 斜杭 ２ 杭頭部補強板 ３ 連結プレート ４ 海面 ５ ハーフプレキャスト版 ５ａ 作業用床部 ５ｂ 吊り部 ６ 仮置き材 ７ Ｈ鋼桁 ８ アンカーボルト ９ 鋼製プレート １０ 斜組杭 １１ ナット １２ アーチ １３ 本つなぎ材 １４ ワイヤ １５ 底型枠 １６ コンクリート １７ ワイヤ １８ Ｈ鋼桁 １９ アンカー鉄筋 ２０ 鉄筋 DESCRIPTION OF SYMBOLS 1 Inclined pile 2 Pile head reinforcing plate 3 Connecting plate 4 Sea surface 5 Half precast plate 5a Working floor 5b Suspension 6 Temporary placing material 7 H steel girder 8 Anchor bolt 9 Steel plate 10 Oblique pile 11 Nut 12 Arch 13 Main connecting material 14 Wire 15 Bottom formwork 16 Concrete 17 Wire 18 H steel girder 19 Anchor reinforcing bar 20 Reinforcing bar
───────────────────────────────────────────────────── フロントページの続き (71)出願人 000201504 前田製管株式会社 山形県酒田市上本町６番７号 (71)出願人 000146869 株式会社森長組 兵庫県三原郡南淡町賀集823番地 (72)発明者 大木 紀通 東京都中央区銀座八丁目21番１号 株式会 社竹中工務店東京本店内 (72)発明者 河原林 英彰 東京都中央区銀座八丁目21番１号 株式会 社竹中土木内 (72)発明者 大岩 健治郎 東京都港区港南一丁目８番27号 日本コン クリート工業株式会社内 (72)発明者 笠原 浩 東京都江東区東陽三丁目23番21号 前田製 管株式会社東京統括支店内 (72)発明者 橋本 拓也 兵庫県三原郡南淡町賀集823番地 株式会 社森長組南淡町本社内 Ｆターム(参考） 2D041 AA02 BA17 BA20 DB03 FA15 ──────────────────────────────────────────────────続 き Continuing from the front page (71) Applicant 000201504 Maeda Seisakusho Co., Ltd. 6-7, Uehonmachi, Sakata-shi, Yamagata (71) Applicant 000146869 Morinagagumi Co., Ltd.823, Kashu, Minamiawamachi, Mihara-gun, Hyogo (72) Inventor Noriyuki Oki 8-21-1, Ginza, Chuo-ku, Tokyo Inside the Takenaka Corporation Tokyo Head Office (72) Inventor Hideaki Kawaharabayashi 8-21-1, Ginza, Chuo-ku, Tokyo Co., Ltd. (72) Inventor Kenjiro Oiwa 1-8-27 Konan, Minato-ku, Tokyo Japan Concrete Industry Co., Ltd. (72) Inventor Hiroshi Kasahara 3-231-21, Toyo, Koto-ku, Tokyo Supervisor of Tokyo, Maeda Seisaku Co., Ltd. Inside the branch (72) Inventor Takuya Hashimoto 823 Minamiawamachi Kashu, Mihara-gun, Hyogo F-term (Reference) 2D041 AA02 BA17 BA20 DB03 FA15
Claims (6)
各杭頭部に巻き付けた杭頭部補強板同士を連結プレート
で互いに接合して斜組杭とする工程と、 前記斜組杭の各杭頭部の上面を水平化処理する工程と、 前記斜組杭の杭頭部を包囲する環状体で内側に作業用床
部を有し同斜組杭の杭頭部の上面へ仮置きする仮置き材
を付設して成るハーフプレキャスト版を、クレーン等の
重機で吊り、前記斜組杭の杭頭部を包囲する高さ位置に
前記仮置き材により略水平に仮置きし、位置、レベルを
調整する工程と、 前記斜組杭の杭頭部と前記ハーフプレキャスト版とをア
ングル等の本つなぎ材で接合する工程と、 前記ハーフプレキャスト版の下端開口部に底型枠を設け
る工程と、 前記斜組杭の杭頭部及び前記ハーフプレキャスト版の内
部の配筋作業を行い、同ハーフプレキャスト版の内部に
コンクリートを打設して前記斜組杭の杭頭部とハーフプ
レキャスト版とを一体化させる工程と、から成ることを
それぞれ特徴とする、斜組杭の杭頭部施工方法。1. A step of assembling pile heads of at least two slant piles and joining pile head reinforcing plates wound around the pile heads to each other with a connecting plate to form a slanted pile. A step of leveling the upper surface of each pile head of the pile, and an annular body surrounding the pile head of the diagonal pile having a work floor inside and to the upper surface of the pile head of the diagonal pile A half precast plate attached with a temporary placing material to be temporarily placed is suspended by a heavy machine such as a crane, and is temporarily placed substantially horizontally by the temporary placing material at a height position surrounding the pile head of the diagonal pile, Adjusting the position and level; joining the pile head of the diagonal pile to the half precast plate with a permanent joining material such as an angle; providing a bottom formwork at the lower end opening of the half precast plate Steps and rebar arrangement work inside the pile head of the diagonal pile and the half precast plate A step of casting concrete inside the half-precast slab and integrating the pile head of the skewed pile with the half-precast slab, respectively. Department construction method.
各杭頭部に巻き付けた杭頭部補強板同士を連結プレート
で互いに接合して斜組杭とする工程と、 前記斜組杭の各杭頭部の上面を水平化処理する工程と、 前記水平化処理した斜組杭の杭頭部の上面にＨ鋼桁を設
ける工程と、 前記斜組杭の杭頭部を包囲する環状体で内側に作業用床
部とアンカー筋等の接合部材を有する形態のハーフプレ
キャスト版を、クレーン等の重機で吊り、前記斜組杭の
杭頭部を包囲する高さ位置に略水平に仮置きし、位置、
レベルを調整する工程と、 前記Ｈ鋼桁と前記ハーフプレキャスト版のアンカー筋等
の接合部材とを接合する工程と、 前記ハーフプレキャスト版の下端開口部に底型枠を設け
る工程と、 前記斜組杭の杭頭部及び前記ハーフプレキャスト版の内
部の配筋作業を行い、同ハーフプレキャスト版の内部に
コンクリートを打設して前記斜組杭の杭頭部とハーフプ
レキャスト版とを一体化させる工程と、から成ることを
それぞれ特徴とする、斜組杭の杭頭部施工方法。2. A step of assembling pile heads of at least two slant piles and joining pile head reinforcing plates wound around each pile head to each other with a connecting plate to form a slanted pile. A step of leveling the upper surface of each pile head of the pile, a step of providing an H steel girder on the upper surface of the leveled piled pile head, and surrounding the pile head of the angled pile. A half precast plate of a form having a joining member such as a working floor and an anchor bar inside on an annular body is suspended by a heavy machine such as a crane, and substantially horizontally at a height position surrounding the pile head of the diagonal pile. Temporarily put, position,
Adjusting the level; joining the H steel girder to a joining member such as an anchor bar of the half precast plate; providing a bottom formwork at a lower end opening of the half precast plate; A step of performing a reinforcing work on the pile head of the pile and the inside of the half precast plate, casting concrete inside the half precast plate, and integrating the pile head of the slanted pile with the half precast plate And a method for constructing a pile head of a slanted pile.
に突出されたアンカーボルトを基礎として組み立てた複
数のアーチと、相対峙するアーチの下方に通したＨ鋼桁
とで構成されることを特徴とする、請求項１に記載した
斜組杭の杭頭部施工方法。3. The temporary placing material is constituted by a plurality of arches assembled on the basis of anchor bolts protruding at the position of the half precast plate, and an H steel girder extending below the opposing arches. The method for constructing a pile head of a slanted pile according to claim 1, wherein:
えて対称的に配設し、同２本の斜杭の杭頭部に巻き付け
た杭頭部補強板同士を連結プレートで互いに接合して斜
組杭とすることを特徴とする、請求項１又は２に記載し
た斜組杭の杭頭部施工方法。4. The two slanted piles are arranged symmetrically with a substantially 180-degree change in direction in a plane, and the pile head reinforcing plates wound around the pile heads of the two slanted piles are connected to each other by a connecting plate. 3. The method according to claim 1, wherein the pile is joined to each other to form an angled pile.
置を略同等レベルに水平化処理することを特徴とする、
請求項１又は２に記載した斜組杭の杭頭部施工方法。5. The method according to claim 1, wherein the height position of the upper surface of each pile head constituting the slanted pile is leveled to substantially the same level.
The pile head construction method for a slanted pile according to claim 1 or 2.
ことを特徴とする、請求項１又は２に記載した斜組杭の
杭頭部施工方法。6. The method according to claim 1, wherein the bottom formwork is suspended and supported on a pile head of the slanted pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18507798A JP4060948B2 (en) | 1998-06-30 | 1998-06-30 | Pile head construction method for diagonally assembled piles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18507798A JP4060948B2 (en) | 1998-06-30 | 1998-06-30 | Pile head construction method for diagonally assembled piles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000017642A true JP2000017642A (en) | 2000-01-18 |
| JP4060948B2 JP4060948B2 (en) | 2008-03-12 |
Family
ID=16164425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18507798A Expired - Fee Related JP4060948B2 (en) | 1998-06-30 | 1998-06-30 | Pile head construction method for diagonally assembled piles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4060948B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113089646A (en) * | 2021-04-15 | 2021-07-09 | 上海工程技术大学 | Concrete combined pile and manufacturing method thereof |
| JP2021107631A (en) * | 2019-12-27 | 2021-07-29 | 丸栄コンクリート工業株式会社 | Construction of on-water structure |
| CN114892698A (en) * | 2022-06-13 | 2022-08-12 | 中交第二航务工程局有限公司 | Assembly type template for asymmetric double-inclined-pile cast-in-place bearing platform and construction method |
-
1998
- 1998-06-30 JP JP18507798A patent/JP4060948B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021107631A (en) * | 2019-12-27 | 2021-07-29 | 丸栄コンクリート工業株式会社 | Construction of on-water structure |
| JP7037825B2 (en) | 2019-12-27 | 2022-03-17 | 丸栄コンクリート工業株式会社 | Construction of floating structures |
| CN113089646A (en) * | 2021-04-15 | 2021-07-09 | 上海工程技术大学 | Concrete combined pile and manufacturing method thereof |
| CN114892698A (en) * | 2022-06-13 | 2022-08-12 | 中交第二航务工程局有限公司 | Assembly type template for asymmetric double-inclined-pile cast-in-place bearing platform and construction method |
| CN114892698B (en) * | 2022-06-13 | 2024-05-17 | 中国海洋大学 | Assembled template for asymmetric double-inclined-pile cast-in-situ bearing platform and construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4060948B2 (en) | 2008-03-12 |
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