JP2004300819A - Non-blocking type reinforcing structure - Google Patents

Non-blocking type reinforcing structure Download PDF

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Publication number
JP2004300819A
JP2004300819A JP2003096318A JP2003096318A JP2004300819A JP 2004300819 A JP2004300819 A JP 2004300819A JP 2003096318 A JP2003096318 A JP 2003096318A JP 2003096318 A JP2003096318 A JP 2003096318A JP 2004300819 A JP2004300819 A JP 2004300819A
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JP
Japan
Prior art keywords
reinforcing structure
sheet pile
sheet piles
blocking type
bridge girder
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
Application number
JP2003096318A
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Japanese (ja)
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JP4121411B2 (en
Inventor
Masayuki Kanda
政幸 神田
Hidetoshi Nishioka
英俊 西岡
Osamu Murata
修 村田
Junji Sakimoto
純治 崎本
Junichi Hirao
淳一 平尾
Masato Ito
政人 伊藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Obayashi Corp
Railway Technical Research Institute
Original Assignee
Obayashi Corp
Railway Technical Research Institute
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Priority to JP2003096318A priority Critical patent/JP4121411B2/en
Publication of JP2004300819A publication Critical patent/JP2004300819A/en
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Publication of JP4121411B2 publication Critical patent/JP4121411B2/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a non-blocking type reinforcing structure capable of easily carrying out construction work of a reinforcing structure of a footing. <P>SOLUTION: The reinforcing structure is so constituted that sheet piles 1 are only driven into two surfaces opposed to each other as shown in Figures 1 to 3. The sheet piles 1 are driven in parallel with the direction of a bridge girder as shown in Fig. 4. A pier can be thereby prevented from slantly falling sideways thereof like Great Hanshin Earthquake. Two sheet piles 1 are sufficient, and since the sheet piles 1 are not required for connecting them to each other, the construction work is also easily and simply carried out at a low cost. There is no overhead clearance in the case it is shown in Fig. 4. In other word, each sheet pile 1 is driven sideways from the bridge girder, the bridge girder does not exist upward so that a heavy industrial machine can be installed. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、特に既設の構造物基礎の補強に好適な非閉塞型補強構造に係る技術に属する。
【０００２】
【従来の技術】
従来、矢板を用いた補強構造としては種々のものが開発提供されている（例えば、特許文献１参照）。
【特許文献１】
特開平１１―２００３９５号公報（図１参照）
いずれの発明においても、平面視において閉じるように矢板同士を連結している。
【０００３】
【発明が解決しようとする課題】
しかしながら、矢板同士を連結する作業は非常に大変であり、特に、既設フーチングを補強する場合には地盤中に打設して連結作業を行う為、特に最後の連結作業は困難を極めていた。
本発明は斯かる問題点を鑑みてなされたものであり、その目的とするところは、上記問題点を解決できる技術を提供する点にある。
【０００４】
【課題を解決するための手段】
本発明は上記課題を解決すべく、以下に掲げる構成とした。
請求項１記載の発明の要旨は、矢板を用いて構造物基礎を補強する非閉塞型補強構造であって、平面視において矢板が全辺にないことを特徴とする非閉塞型補強構造に存する。
請求項２記載の発明の要旨は、前記矢板は、対向する２面にのみに矢板が設けられていることを特徴とする請求項１記載の非閉塞型補強構造に存する。
請求項３記載の発明の要旨は、前記矢板は橋桁と平行に設けられていることを特徴とする請求項２記載の非閉塞型補強構造に存する。
請求項４記載の発明の要旨は、前記矢板は、１辺又は３辺にのみ設けられていることを特徴とする請求項１記載の非閉塞型補強構造に存する。
請求項５記載の発明の要旨は、矢板を用いて構造物基礎を補強する非閉塞型補強構造であって、平面視において矢板が全周にないことを特徴とする非閉塞型補強構造に存する。
【０００５】
【発明の実施の形態】
以下、本発明の実施の形態を図面に基づいて詳細に説明する。
図１乃至３に示すように、本実施の形態に係る補強構造は、対向する２面のみに矢板１が設けられている。矢板１は、図４に示すように橋桁方向と平行に設けられている。
【０００６】
既設フーチングＦの施工方法は、フーチングＦが露出するように掘削し、矢板１を打ち込む。当該矢板１とフーチングＦとを結合する（結合しなくても良い）。その後、埋め戻す。以上により補強構造を施工できる。
【０００７】
当該構成により、阪神大震災の時のような橋脚の側方への傾倒を防止することができる。
２枚の矢板１で足り、且つ矢板１同士の連結も必要でないので、安価且つ施工も容易・簡便である。
また、図４に示す場合には、空頭制限が無い。すなわち、矢板１を橋桁の側方から打ち込むことになるが、上方に橋桁が存しないので、重機を設置できる。
【０００８】
なお、上記構成部材の数、位置、形状等は上記実施の形態に限定されず、本発明を実施する上で好適な数、位置、形状等にすることができる。
例えば、図５或いは図６に示すように３面にすることもできる。図５の場合は隣接する矢板１同士を接続している。図６においては接続していない。
また、上記実施の形態では、矩形のフーチングＦに適用したが、多角形のフーチングＦにも適用可能である。
また、図７や図８に示すように円形のフーチングＦにも適用可能である。
また、矢板１自身水平断面の形状は、コルゲート、波形等を問わない。
また、上記実施の形態は、既設について記載したが、本発明は新設のものにも適用可能である。
また、本発明は、平面視において矢板１が閉じられていない点を特徴とし、フーチングＦの形状、矢板１の枚数には限定されない。
また、橋脚のみならず、橋台その他の構造物の基礎にも適用可能である。
なお、各図において、同一構成要素には同一符号を付している。
【０００９】
【発明の効果】
本発明は以上のように矢板を閉じないので、施工が非常に容易にすることができる。
【図面の簡単な説明】
【図１】本発明の実施の形態に係る補強構造の斜視図である。
【図２】図１の側面図である。
【図３】図１の平面図である。
【図４】走行状態を示す側面図である。
【図５】本発明の他の実施の形態を示す平面図である。
【図６】本発明のその他の実施の形態を示す平面図である。
【図７】本発明の他の実施の形態を示す平面図である。
【図８】本発明のその他の実施の形態を示す平面図である。
【符号の説明】
１ 矢板
Ｆ フーチング[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention belongs to a technique relating to a non-blocking type reinforcing structure particularly suitable for reinforcing an existing structure foundation.
[0002]
[Prior art]
Conventionally, various reinforcement structures using a sheet pile have been developed and provided (for example, see Patent Document 1).
[Patent Document 1]
JP-A-11-200395 (see FIG. 1)
In any of the inventions, the sheet piles are connected so as to close in a plan view.
[0003]
[Problems to be solved by the invention]
However, the work of connecting the sheet piles is very difficult, and especially when the existing footing is reinforced, the work is performed by driving the sheet pile into the ground, so that the last connection work is extremely difficult.
The present invention has been made in view of such a problem, and an object of the present invention is to provide a technique capable of solving the above problem.
[0004]
[Means for Solving the Problems]
The present invention has the following configurations in order to solve the above problems.
The gist of the invention according to claim 1 is a non-blocking type reinforcing structure for reinforcing a structural foundation using a sheet pile, wherein the sheet pile is not on all sides in plan view. .
The gist of the invention according to claim 2 resides in the non-blocking type reinforcing structure according to claim 1, wherein the sheet pile is provided only on two opposing surfaces.
The gist of the invention according to claim 3 resides in the non-blocking reinforcing structure according to claim 2, wherein the sheet pile is provided in parallel with the bridge girder.
The gist of the invention described in claim 4 is that the sheet pile is provided on only one side or three sides, and the present invention resides in the non-blocking reinforcing structure according to claim 1.
The gist of the invention according to claim 5 is a non-blocking type reinforcing structure for reinforcing a structural foundation using a sheet pile, wherein the sheet pile is not provided on the entire circumference in plan view. .
[0005]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
As shown in FIGS. 1 to 3, in the reinforcing structure according to the present embodiment, the sheet piles 1 are provided only on two opposing surfaces. The sheet pile 1 is provided in parallel with the bridge girder direction as shown in FIG.
[0006]
The construction method of the existing footing F is such that the footing F is excavated and the sheet pile 1 is driven. The sheet pile 1 and the footing F are joined (they need not be joined). Then backfill. Thus, the reinforcing structure can be constructed.
[0007]
With this configuration, it is possible to prevent the pier from tilting to the side as in the case of the Great Hanshin Earthquake.
Since two sheet piles 1 are sufficient, and connection between the sheet piles 1 is not necessary, the construction is inexpensive and the construction is easy and simple.
In addition, in the case shown in FIG. That is, the sheet pile 1 is driven from the side of the bridge girder, but since there is no bridge girder above, heavy equipment can be installed.
[0008]
Note that the number, position, shape, and the like of the constituent members are not limited to the above-described embodiment, but can be set to a number, position, shape, and the like suitable for carrying out the present invention.
For example, as shown in FIG. 5 or FIG. In the case of FIG. 5, adjacent sheet piles 1 are connected. In FIG. 6, it is not connected.
In the above embodiment, the present invention is applied to the rectangular footing F, but the present invention is also applicable to a polygonal footing F.
Further, as shown in FIGS. 7 and 8, the present invention can be applied to a circular footing F.
Further, the shape of the horizontal cross section of the sheet pile 1 itself may be corrugated or corrugated.
Further, the above embodiment has been described with respect to the existing one, but the present invention is also applicable to a new one.
Further, the present invention is characterized in that the sheet pile 1 is not closed in plan view, and is not limited to the shape of the footing F and the number of sheet piles 1.
In addition, the present invention can be applied to not only a pier but also a foundation of an abutment and other structures.
In the drawings, the same components are denoted by the same reference numerals.
[0009]
【The invention's effect】
Since the present invention does not close the sheet pile as described above, the construction can be made very easy.
[Brief description of the drawings]
FIG. 1 is a perspective view of a reinforcing structure according to an embodiment of the present invention.
FIG. 2 is a side view of FIG.
FIG. 3 is a plan view of FIG. 1;
FIG. 4 is a side view showing a running state.
FIG. 5 is a plan view showing another embodiment of the present invention.
FIG. 6 is a plan view showing another embodiment of the present invention.
FIG. 7 is a plan view showing another embodiment of the present invention.
FIG. 8 is a plan view showing another embodiment of the present invention.
[Explanation of symbols]
1 Yaita F footing

Claims (5)

矢板を用いて構造物基礎を補強する非閉塞型補強構造であって、平面視において矢板が全辺にないことを特徴とする非閉塞型補強構造。What is claimed is: 1. A non-blocking type reinforcing structure for reinforcing a structural foundation using a sheet pile, wherein the sheet pile is not on all sides in plan view. 前記矢板は、対向する２面にのみに矢板が設けられていることを特徴とする請求項１記載の非閉塞型補強構造。The non-blocking type reinforcement structure according to claim 1, wherein the sheet pile is provided with a sheet pile only on two opposing surfaces. 前記矢板は橋桁と平行に設けられていることを特徴とする請求項２記載の非閉塞型補強構造。The non-blocking reinforcement structure according to claim 2, wherein the sheet pile is provided in parallel with the bridge girder. 前記矢板は、１辺又は３辺にのみ設けられていることを特徴とする請求項１記載の非閉塞型補強構造。The non-blocking type reinforcing structure according to claim 1, wherein the sheet pile is provided only on one or three sides. 矢板を用いて構造物基礎を補強する非閉塞型補強構造であって、平面視において矢板が全周にないことを特徴とする非閉塞型補強構造。What is claimed is: 1. A non-blocking type reinforcing structure for reinforcing a structural foundation using a sheet pile, wherein the sheet pile is not provided on the entire circumference in plan view.
JP2003096318A 2003-03-31 2003-03-31 Non-occlusive reinforcement structure Expired - Fee Related JP4121411B2 (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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JP4121411B2 JP4121411B2 (en) 2008-07-23

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010209548A (en) * 2009-03-09 2010-09-24 Nippon Steel Corp Steel sheet pile foundation structure and method for reinforcing foundation

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09158212A (en) * 1995-12-08 1997-06-17 Hazama Gumi Ltd Foundation reinforcing structure for structure group
JP2000178997A (en) * 1998-12-16 2000-06-27 Shimizu Corp Structure for coping with ground lateral flow
JP2001214465A (en) * 2000-01-31 2001-08-07 Sumitomo Metal Ind Ltd Reinforcing structure for underground construction

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09158212A (en) * 1995-12-08 1997-06-17 Hazama Gumi Ltd Foundation reinforcing structure for structure group
JP2000178997A (en) * 1998-12-16 2000-06-27 Shimizu Corp Structure for coping with ground lateral flow
JP2001214465A (en) * 2000-01-31 2001-08-07 Sumitomo Metal Ind Ltd Reinforcing structure for underground construction

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010209548A (en) * 2009-03-09 2010-09-24 Nippon Steel Corp Steel sheet pile foundation structure and method for reinforcing foundation

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