JP2006169917A - Method of forming foundation - Google Patents

Method of forming foundation Download PDF

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JP2006169917A
JP2006169917A JP2004367582A JP2004367582A JP2006169917A JP 2006169917 A JP2006169917 A JP 2006169917A JP 2004367582 A JP2004367582 A JP 2004367582A JP 2004367582 A JP2004367582 A JP 2004367582A JP 2006169917 A JP2006169917 A JP 2006169917A
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foundation
pile
vertical cylinder
foundation pile
construction
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Eisaku Kawai
栄作 河合
Kazuto Nakahira
和人 中平
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Takenaka Komuten Co Ltd
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Takenaka Komuten Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To enable the construction of a foundation part to be effectively performed within a short time. <P>SOLUTION: The method of forming a foundation integrally connects a substructure part B1 to a foundation pile B2, and the substructure part B1 is constructed by a foundation beam 1 or a foundation slab. When the substructure part B1 is formed, a connecting vertical tube 2, which can be freely and integrally connected to the foundation pile B2, is provided in a position where the foundation pile B2 is to be provided. The connecting vertical tube 2 is provided in a state that it is stably fixed to the substructure part B1. Then the execution for providing the foundation pile B2 is performed through the inner hollow part of the connecting vertical tube 2, and the foundation pile B2 and the connecting vertical tube 2 are stably fixed to each other. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、基礎梁又は基礎スラブからなる基礎構造部と、基礎杭とを一体に連結する基礎形成方法に関する。   The present invention relates to a foundation forming method for integrally connecting a foundation structure made of a foundation beam or a foundation slab and a foundation pile.

従来、この種の基礎形成方法としては、基礎杭の上端部に多数の定着用鉄筋が露出した状態に基礎杭を打設し、それらの定着用鉄筋の間を通して基礎構造部の主鉄筋等の鉄筋を配筋し、それら各鉄筋を一体に被う状態に基礎構造部のコンクリートを打設して硬化させることで前記基礎杭と前記基礎構造部とが一体となった基礎を形成する方法（以後、第一方法と言う）があった。
また、この方法（第一方法）においては、基礎構造部の配筋の際に、基礎杭の定着用鉄筋間の狭い隙間に鉄筋を配置する作業に非常に手間が掛かることから、それを解消する基礎形成方法として、外周面に基礎構造部への定着用スタッドジベルを溶接した接合縦筒を、打設した基礎杭の上端部に外嵌する状態に配置し、接合縦筒内にコンクリートを打設することで杭と接合縦筒とを一体化すると共に、接合縦筒の外周部に、基礎構造部の配筋を行ってコンクリートを打設することで、基礎構造部と接合縦筒とを一体化し、結果的に、接合縦筒を介して杭と基礎構造部とを一体的に連結する方法（以後、第二方法と言う）があった（例えば、特許文献１参照）。
また、基礎杭が鋼管杭（又は鋼管巻きコンクリート杭）である場合には、鋼管杭の上端部に、基礎構造部の鉄筋を挿通できる挿通孔を形成しておき、基礎杭を打設した後、その挿通孔に基礎構造部の鉄筋を挿通配置し、基礎杭や各鉄筋を一体に被う状態に基礎構造部のコンクリートを打設して硬化させることで前記基礎杭と前記基礎構造部とが一体となった基礎を形成する方法（以後、第三方法と言う）があった（例えば、特許文献２、特許文献３参照）。この第三方法に類似した方法として、前記挿通孔を基礎杭の上端部に形成するのに替えて、基礎杭の上端部に外嵌自在な接合縦筒に挿通孔を形成したものを使用する方法（以後、第四方法と言う）もあった（例えば、特許文献４参照）。 Conventionally, as this type of foundation formation method, foundation piles are placed in a state where a large number of anchoring reinforcing bars are exposed at the upper end of the foundation pile, and the main reinforcing bars of the foundation structural part are passed through these anchoring reinforcing bars. A method of forming a foundation in which the foundation pile and the foundation structure part are integrated by placing reinforcing bars and setting the concrete of the foundation structure part in a state of covering each of the reinforcing bars integrally and hardening it. Hereinafter, it was referred to as the first method).
In addition, this method (first method) eliminates the need for placing the reinforcing bars in the narrow gaps between the reinforcing bars for anchoring the foundation pile when placing the foundation structure. As a foundation forming method, a joint vertical cylinder welded with a stud gibber for fixing to the foundation structure part on the outer peripheral surface is placed in a state of being externally fitted to the upper end of the placed foundation pile, and concrete is placed in the joint vertical cylinder. By placing the pile and the joining vertical cylinder, the foundation structure section and the joining vertical cylinder are arranged by placing concrete in the outer periphery of the joining vertical cylinder by placing the foundation structure section. As a result, there has been a method (hereinafter referred to as a second method) in which a pile and a foundation structure are integrally connected via a joining vertical cylinder (see, for example, Patent Document 1).
In addition, when the foundation pile is a steel pipe pile (or steel pipe-wrapped concrete pile), after forming the insertion hole through which the reinforcing bar of the foundation structure part can be inserted in the upper end of the steel pipe pile, and driving the foundation pile The foundation pile and the foundation structure are placed by inserting and reinforcing the reinforcement of the foundation structure into the insertion hole, and placing and hardening the concrete of the foundation structure in a state of covering the foundation pile and each reinforcement integrally. There is a method (hereinafter referred to as a third method) for forming a foundation in which the two are integrated (see, for example, Patent Document 2 and Patent Document 3). As a method similar to the third method, instead of forming the insertion hole in the upper end portion of the foundation pile, a method in which an insertion hole is formed in a joining vertical cylinder that can be fitted to the upper end portion of the foundation pile is used. There was also a method (hereinafter referred to as a fourth method) (see, for example, Patent Document 4).

特開２０００−３５５９４１号公報（図６、図９）Japanese Patent Laid-Open No. 2000-355941 (FIGS. 6 and 9) 特開２０００−３３６６６４号公報（図１、図３）JP 2000-336664 A (FIGS. 1 and 3) 特開２００２−２２７２２０号公報（図１）JP 2002-227220 A (FIG. 1) 特開２００１−３０３５８４号公報（図１、図２）Japanese Patent Laid-Open No. 2001-303588 (FIGS. 1 and 2)

上述した従来の基礎形成方法によれば、第一〜第四の何れの方法についても、基礎杭を施工した後に、基礎構造部の施工に移る手順で作業が進められる。従って、基礎杭の施工が終了してからでないと基礎構造部の施工に掛かることが困難であると共に、基礎構造部上で実施される設備工事等の後工程も当然の事ながら基礎杭・基礎構造部の施工の後に実施する必要があり、基礎部分の建設におけるクリティカルパスの短縮が困難であった。   According to the conventional foundation forming method described above, in any of the first to fourth methods, after the foundation pile is constructed, the work proceeds in a procedure that shifts to the construction of the foundation structure portion. Therefore, it is difficult to start the construction of the foundation structure only after the construction of the foundation pile has been completed. It was necessary to carry out after the construction of the structural part, and it was difficult to shorten the critical path in the construction of the foundation part.

従って、本発明の目的は、上記問題点を解消し、基礎部分の建設を効率よく短い期間で実施できる基礎形成方法を提供するところにある。   Accordingly, an object of the present invention is to provide a foundation forming method capable of solving the above-described problems and efficiently constructing a foundation portion in a short period of time.

本発明の第１の特徴構成は、基礎梁又は基礎スラブからなる基礎構造部と、基礎杭とを一体に連結する基礎形成方法において、前記基礎構造部を形成する際に、前記基礎杭の設置予定位置に、前記基礎杭と一体接合自在な接合縦筒を、前記基礎構造部に定着する状態に設けておき、前記接合縦筒の内空部を通して前記基礎杭の設置施工を行い、前記基礎杭と前記接合縦筒とを定着させるところにある。   A first characteristic configuration of the present invention is a foundation forming method for integrally connecting a foundation structure portion made of a foundation beam or a foundation slab and a foundation pile, and when the foundation structure portion is formed, the foundation pile is installed. In a predetermined position, a joining vertical cylinder that can be integrally joined with the foundation pile is provided in a state to be fixed to the foundation structure portion, and the foundation pile is installed through the inner space of the joining vertical cylinder, and the foundation It is in the place which fixes a pile and the said joining vertical cylinder.

本発明の第１の特徴構成によれば、前記基礎構造部を形成する際に、前記基礎杭の設置予定位置に、前記基礎杭と一体接合自在な接合縦筒を、前記基礎構造部に定着する状態に設けておき、前記接合縦筒の内空部を通して前記基礎杭の設置施工を行い、前記基礎杭と前記接合縦筒とを定着させるから、前記接合縦筒は、基礎構造部、及び、基礎杭の両方に一体的に定着される。即ち、基礎構造部と基礎杭とは、接合縦筒を介して一体に連結され、所定の連結強度を発揮する状態に基礎構造を形成することが可能となる。
そして、基礎杭の施工は、基礎構造部上に施工装置を設置して実施することになり、施工装置の足下は、精度良く形成された基礎構造部で構成されているから、施工装置の設置精度も良くなる。その結果、精度の高い杭を、スムースに設置することが可能となる。
また、杭施工以外のスペースにおいては、杭施工と並行して基礎構造部上で他の作業（例えば、設備工事等の後工程）を実施することが可能となり、基礎部分の建設におけるクリティカルパスの短縮を図ることができる。
即ち、本発明の第１の特徴構成によれば、基礎部分の建設を効率よく短い期間で実施できるようになる。 According to the 1st characteristic structure of this invention, when forming the said foundation structure part, the joining vertical cylinder which can be joined integrally with the said foundation pile is fixed to the said foundation structure part in the installation planned position of the said foundation pile. Since the foundation pile is installed through the inner space of the joining vertical cylinder and the foundation pile and the joining vertical cylinder are fixed, the joining vertical cylinder includes the foundation structure portion, and , Fixed integrally on both foundation piles. That is, the foundation structure portion and the foundation pile are integrally connected via the joining vertical cylinder, and the foundation structure can be formed in a state in which a predetermined connection strength is exhibited.
And the construction of the foundation pile will be carried out by installing the construction equipment on the foundation structure part, and the feet of the construction equipment are composed of the foundation structure part formed with high precision. Accuracy is also improved. As a result, a highly accurate pile can be installed smoothly.
Also, in spaces other than pile construction, it is possible to perform other work (for example, post-processes such as equipment construction) on the foundation structure in parallel with pile construction. Shortening can be achieved.
That is, according to the first characteristic configuration of the present invention, the foundation can be constructed efficiently in a short period of time.

本発明の第２の特徴構成は、前記接合縦筒は、前記基礎杭の施工用のスタンドパイプを兼用するものであるところにある。   The 2nd characteristic structure of this invention exists in the place where the said joining vertical cylinder serves also as the stand pipe for construction of the said foundation pile.

本発明の第２の特徴構成によれば、本発明の第１の特徴構成による上述の作用効果を叶えることができるのに加えて、接合縦筒を設置する一度の手間で基礎杭施工用のスタンドパイプの設置も完了するから、基礎杭の施工工程をより短縮することが可能となる。   According to the second characteristic configuration of the present invention, in addition to being able to achieve the above-described operational effects according to the first characteristic configuration of the present invention, it is possible to perform foundation pile construction with a single effort of installing the joining vertical cylinder. Since the installation of the standpipe is completed, the construction process of the foundation pile can be further shortened.

以下に本発明の実施の形態を図面に基づいて説明する。尚、図面において従来例と同一の符号で表示した部分は、同一又は相当の部分を示している。   Embodiments of the present invention will be described below with reference to the drawings. In the drawings, the parts indicated by the same reference numerals as those in the conventional example indicate the same or corresponding parts.

図１、図２は、本発明の基礎形成方法の一実施態様で形成した建物基礎Ｂの要部を示すもので、建物基礎Ｂは、基礎梁１（又は基礎スラブ）からなる基礎構造部Ｂ１と、基礎杭Ｂ２とを鋼管製の接合縦筒２を介して一体に連結して構成されている。
尚、図には示さないが、基礎杭Ｂ２の設置箇所の直上に柱が一体に設けられることが多い。 1 and 2 show the main part of a building foundation B formed by one embodiment of the foundation forming method of the present invention. The building foundation B is a foundation structure B1 composed of a foundation beam 1 (or foundation slab). And foundation pile B2 is integrally connected via the joining pipe | tube 2 made from a steel pipe, and is comprised.
In addition, although not shown in a figure, a pillar is often provided integrally just above the installation location of foundation pile B2.

前記接合縦筒２は、図１に示すように、前記基礎梁１の高さ寸法と同じ長さ寸法の鋼管で構成された筒本体２ａと、その筒本体２ａの外周部に一体に溶接された複数の定着鉄筋２ｂとを備えて構成してある。
前記筒本体２ａは、本実施形態においては、基礎杭Ｂ２の外形寸法以上の内径寸法に形成したものを使用してある。
前記各定着鉄筋２ｂは、筒本体２ａの外周面の内、各基礎梁１の主鉄筋にそれぞれ重なる位置に溶接で固定されており、筒本体２ａを、基礎梁１内に固定するに足りる定着長以上の長さで、且つ、基礎梁１の主鉄筋との重ね継手部を構成できる定着長以上の長さに形成してある。 As shown in FIG. 1, the joining vertical cylinder 2 is integrally welded to a cylinder main body 2a composed of a steel pipe having the same length as the height of the foundation beam 1 and an outer peripheral portion of the cylinder main body 2a. And a plurality of fixing reinforcing bars 2b.
In the present embodiment, the cylinder body 2a is formed with an inner diameter dimension equal to or larger than the outer dimension of the foundation pile B2.
The fixing reinforcing bars 2b are fixed by welding at positions overlapping the main reinforcing bars of the foundation beams 1 in the outer peripheral surface of the cylinder main body 2a, and the fixing is sufficient to fix the cylinder main body 2a in the foundation beam 1. It is longer than the length and longer than the fixing length that can form the lap joint with the main reinforcing bar of the foundation beam 1.

前記基礎梁１は、長手方向に沿ってそれぞれ配置された複数の主鉄筋１ａと、それら主鉄筋１ａを取り囲む状態に設けられた複数の肋筋１ｂと、それらの鉄筋を一体に包み込む状態に打設されたコンクリート１ｃとを備えて構成されている。
また、各基礎梁１の配置は、本実施形態においては、前記接合縦筒２を中心として、平面図で十文字となるように配置されており（図２参照）、前述のように、前記接合縦筒２の定着鉄筋２ｂと、基礎梁１の主鉄筋１ａとが所定寸法にわたって重なる状態に位置するように形成されている。これら両鉄筋どうしの継手は、重ね継手に限らず、溶接継手や機械継手を採用することもできる。
従って、基礎梁１のコンクリート１ｃの打設によって、前記接合縦筒２と基礎梁１とは、応力伝達自在な状態に一体連結されている。 The foundation beam 1 has a plurality of main reinforcing bars 1a arranged along the longitudinal direction, a plurality of reinforcing bars 1b provided so as to surround the main reinforcing bars 1a, and a state in which the reinforcing bars are integrally wrapped. It is provided with the concrete 1c provided.
In addition, in the present embodiment, the foundation beams 1 are arranged so as to be cross-shaped in a plan view centering on the joining vertical cylinder 2 (see FIG. 2). The fixing rebar 2b of the vertical cylinder 2 and the main rebar 1a of the foundation beam 1 are formed so as to overlap each other over a predetermined dimension. The joint between these two reinforcing bars is not limited to a lap joint, and a welded joint or a mechanical joint can also be adopted.
Therefore, the joining vertical cylinder 2 and the foundation beam 1 are integrally connected in a state where stress can be transmitted by placing the concrete 1 c of the foundation beam 1.

前記基礎杭Ｂ２は、本実施形態においては、場所打ち杭で構成してあり、例えば、対象地盤Ｇを杭掘削機で穿孔した後、その掘削孔内に杭主鉄筋３を篭状に組んだ鉄筋篭を挿入してコンクリート４を打設することで形成することができる。
そして、前記杭主鉄筋３は、前記接合縦筒２の筒内部にまで達する状態に設けられており、前記コンクリート４によって、接合縦筒２と基礎杭Ｂ２とは応力伝達自在な状態に一体連結されている。 In the present embodiment, the foundation pile B2 is constituted by a cast-in-place pile. For example, after drilling the target ground G with a pile excavator, the pile main rebar 3 is assembled in a bowl shape in the excavation hole. It can be formed by inserting a reinforcing bar and placing concrete 4 therethrough.
And the said pile main reinforcing bar 3 is provided in the state which reaches even inside the cylinder of the said joining vertical cylinder 2, and the joining vertical cylinder 2 and the foundation pile B2 are integrally connected by the said concrete 4 in the state which can transmit stress freely. Has been.

次に、当該建物基礎Ｂの形成手順について説明する。
［１］ 基礎杭Ｂ２の打設予定位置に、前記接合縦筒２を配置すると共に、その周りに、基礎梁１の各鉄筋を配置した状態で、梁型枠と接合縦筒２とで囲まれた梁範囲にコンクリート１ｃを打設して、接合縦筒２が一体に埋め込まれた基礎構造部Ｂ１を形成する（図３参照）。但し、基礎梁１の施工に並行して、基礎梁１で囲まれた範囲には、基礎スラブ（不図示）を形成する。
［２］ 前記接合縦筒２を通して、基礎杭Ｂ２を施工する（図４参照）。そして、接合縦筒２内に杭の杭主鉄筋３とコンクリート４とが位置して定着された状態に形成する。
この基礎杭Ｂ２の施工時には、基礎杭施工スペースの他の部分においては、例えば、設備工事等の別工程を実施することができる。 Next, the formation procedure of the building foundation B will be described.
[1] The joint vertical cylinder 2 is disposed at the planned placement position of the foundation pile B2, and the reinforcing bars of the foundation beam 1 are disposed around the joint vertical cylinder 2 and surrounded by the beam formwork and the joint vertical cylinder 2. Concrete 1c is placed in the beam range thus formed to form a foundation structure portion B1 in which the joining vertical cylinders 2 are integrally embedded (see FIG. 3). However, in parallel with the construction of the foundation beam 1, a foundation slab (not shown) is formed in a range surrounded by the foundation beam 1.
[2] The foundation pile B2 is constructed through the joining vertical cylinder 2 (see FIG. 4). And the pile main reinforcement 3 and concrete 4 of a pile are located in the joining vertical cylinder 2, and it forms in the state fixed.
At the time of construction of the foundation pile B2, in another part of the foundation pile construction space, for example, another process such as facility construction can be performed.

本実施形態の基礎形成方法によれば、基礎構造部Ｂ１と基礎杭Ｂ２とは、接合縦筒２を介して一体に連結されるから所定の連結強度を発揮する状態に建物基礎Ｂを形成することが可能となる。そして、基礎杭の施工は、精度の良い基礎構造部Ｂ１上から実施できるから、精度の高い杭を、スムースに設置することが可能となる。
また、杭施工と他の作業（例えば、設備工事等の後工程）を並行して実施することが可能となり、基礎部分の建設におけるクリティカルパスの短縮を図ることができ、基礎部分の建設を効率よく短い期間で実施できるようになる。 According to the foundation forming method of the present embodiment, the foundation structure B1 and the foundation pile B2 are integrally connected via the joining vertical cylinder 2, so that the building foundation B is formed in a state in which a predetermined connection strength is exhibited. It becomes possible. And since construction of a foundation pile can be implemented from the foundation structure part B1 with a sufficient precision, it becomes possible to install a highly accurate pile smoothly.
In addition, pile construction and other work (for example, post-processes such as equipment construction) can be performed in parallel, and the critical path in the foundation construction can be shortened. Can be implemented in a short period of time.

〔別実施形態〕
以下に他の実施の形態を説明する。 [Another embodiment]
Other embodiments will be described below.

〈１〉 前記基礎構造部Ｂ１は、先の実施形態で説明した基礎梁１に限るものではなく、例えば、基礎スラブによる構成や、基礎梁１と基礎スラブの両方を備えた構成であってもよく、それらを含めて、基礎構造部と総称する。
〈２〉 前記基礎杭Ｂ２は、先の実施形態で説明した場所打ち杭に限るものではなく、例えば、成型品の杭であってもよい。従って、鋼管杭や、杭等鋼管コンクリート杭等であってもよい。それらを含めて基礎杭と総称する。
〈３〉 また、接合縦筒２と、基礎杭Ｂ２との径寸法の関係に関しては、先の実施形態で説明したように、杭の外形寸法より大きい内径の接合縦筒を用いることに限らず、例えば、両者が同じ寸法であったり、又は、大小関係が逆となる寸法であってもよい。即ち、杭の掘削そのものが、例えば、高圧ジェットを用いた地中掘削によって基礎杭を形成する方式や、地盤内で拡径する掘削翼を用いた地中掘削によって基礎杭を形成する方式においては、地盤内の基礎杭径が接合縦筒より大きい径となることもある。
〈４〉 前記接合縦筒２は、先の実施形態で説明した筒本体２ａの外周に定着鉄筋２ｂを一体に設けたものに限るものではなく、例えば、図５に示すように、定着鉄筋に替えて、複数のスタッドジベル５を設けた構成であってもよい。
また、接合縦筒２の長さ寸法を、図６に示すように、下端部側が地盤内に入り込む長さに形成しておけば、基礎杭Ｂ２の形成時に、孔壁安定や、周辺地盤への影響を遮断するためのスタンドパイプとしてそのまま兼用することが可能となる。 <1> The foundation structure portion B1 is not limited to the foundation beam 1 described in the previous embodiment. For example, the foundation structure B1 may be configured by a foundation slab or a configuration including both the foundation beam 1 and the foundation slab. Often, they are collectively referred to as the foundation structure.
<2> The foundation pile B2 is not limited to the cast-in-place pile described in the previous embodiment, and may be a molded product pile, for example. Therefore, a steel pipe pile or a steel pipe concrete pile such as a pile may be used. These are collectively referred to as foundation piles.
<3> Moreover, regarding the relationship between the radial dimensions of the joining vertical cylinder 2 and the foundation pile B2, as described in the previous embodiment, the invention is not limited to using a joining vertical cylinder having an inner diameter larger than the outer dimension of the pile. For example, both dimensions may be the same dimension, or the dimensions may be reversed. That is, the pile excavation itself is, for example, a method in which a foundation pile is formed by underground excavation using a high-pressure jet, or a method in which a foundation pile is formed by underground excavation using an excavating blade that expands in the ground. The foundation pile diameter in the ground may be larger than the joining vertical cylinder.
<4> The joining vertical cylinder 2 is not limited to the one in which the fixing reinforcing bar 2b is integrally provided on the outer periphery of the cylinder main body 2a described in the previous embodiment. For example, as illustrated in FIG. Instead, a configuration in which a plurality of stud dowels 5 are provided may be employed.
Moreover, if the length dimension of the joining vertical pipe | tube 2 is formed in the length which a lower end part enters in the ground as shown in FIG. 6, at the time of formation of foundation pile B2, a hole wall stability or to surrounding ground It can be used as it is as a stand pipe for blocking the influence of the above.

尚、上述のように、図面との対照を便利にするために符号を記したが、該記入により本発明は添付図面の構成に限定されるものではない。また、本発明の要旨を逸脱しない範囲において、種々なる態様で実施し得ることは勿論である。   In addition, as mentioned above, although the code | symbol was written in order to make contrast with drawing convenient, this invention is not limited to the structure of an accompanying drawing by this entry. In addition, it goes without saying that the present invention can be carried out in various modes without departing from the gist of the present invention.

基礎を示す断面図Sectional view showing the foundation 基礎を示す斜視図Perspective view showing the foundation 基礎形成手順を説明する断面図Sectional view explaining the foundation formation procedure 基礎形成手順を説明する断面図Sectional view explaining the foundation formation procedure 別実施形態の接合縦筒を示す斜視図The perspective view which shows the joining vertical cylinder of another embodiment. 別実施形態の基礎を示す断面図Sectional drawing which shows the foundation of another embodiment

符号の説明Explanation of symbols

１ 基礎梁（又は基礎スラブ）
２ 接合縦筒
Ｂ１ 基礎構造部
Ｂ２ 基礎杭 1 Foundation beam (or foundation slab)
2 Joint vertical cylinder B1 Foundation structure B2 Foundation pile

Claims (2)

基礎梁又は基礎スラブからなる基礎構造部と、基礎杭とを一体に連結する基礎形成方法であって、
前記基礎構造部を形成する際に、前記基礎杭の設置予定位置に、前記基礎杭と一体接合自在な接合縦筒を、前記基礎構造部に定着する状態に設けておき、前記接合縦筒の内空部を通して前記基礎杭の設置施工を行い、前記基礎杭と前記接合縦筒とを定着させる基礎形成方法。 A foundation forming method for integrally connecting a foundation structure composed of a foundation beam or a foundation slab and a foundation pile,
When forming the foundation structure portion, a joint vertical cylinder that can be integrally joined to the foundation pile is provided at a position where the foundation pile is planned to be fixed to the foundation structure portion. A foundation forming method in which the foundation pile is installed through an inner space and the foundation pile and the joining vertical cylinder are fixed. 前記接合縦筒は、前記基礎杭の施工用のスタンドパイプを兼用するものである請求項１に記載の基礎形成方法。   The foundation forming method according to claim 1, wherein the joining vertical cylinder also serves as a stand pipe for the construction of the foundation pile.
JP2004367582A 2004-12-20 2004-12-20 Method of forming foundation Pending JP2006169917A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020111905A (en) * 2019-01-09 2020-07-27 清水建設株式会社 Pile head joining structure and construction method therefor
JP2020133174A (en) * 2019-02-15 2020-08-31 株式会社安藤・間 Pile foundation structure
JP2021080677A (en) * 2019-11-15 2021-05-27 株式会社安藤・間 Pile foundation structure

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Publication number Priority date Publication date Assignee Title
JPS5462605A (en) * 1977-10-26 1979-05-19 Kawasaki Steel Co Method of building foundation
JPH09242067A (en) * 1996-03-11 1997-09-16 ▲高▼松建設株式会社 Building method for cast-in-place concrete pile
JP2000355941A (en) * 1999-06-16 2000-12-26 Shimizu Corp Building and its construction method
JP2001303584A (en) * 2000-04-20 2001-10-31 Nippon Steel Corp Connection structure between foundation pile head and footing

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5462605A (en) * 1977-10-26 1979-05-19 Kawasaki Steel Co Method of building foundation
JPH09242067A (en) * 1996-03-11 1997-09-16 ▲高▼松建設株式会社 Building method for cast-in-place concrete pile
JP2000355941A (en) * 1999-06-16 2000-12-26 Shimizu Corp Building and its construction method
JP2001303584A (en) * 2000-04-20 2001-10-31 Nippon Steel Corp Connection structure between foundation pile head and footing

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020111905A (en) * 2019-01-09 2020-07-27 清水建設株式会社 Pile head joining structure and construction method therefor
JP2020133174A (en) * 2019-02-15 2020-08-31 株式会社安藤・間 Pile foundation structure
JP7232660B2 (en) 2019-02-15 2023-03-03 株式会社安藤・間 pile foundation structure
JP2021080677A (en) * 2019-11-15 2021-05-27 株式会社安藤・間 Pile foundation structure
JP7416606B2 (en) 2019-11-15 2024-01-17 株式会社安藤・間 pile foundation structure

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