JP3052021B2 - Underground beam erection method - Google Patents
Underground beam erection methodInfo
- Publication number
- JP3052021B2 JP3052021B2 JP4168212A JP16821292A JP3052021B2 JP 3052021 B2 JP3052021 B2 JP 3052021B2 JP 4168212 A JP4168212 A JP 4168212A JP 16821292 A JP16821292 A JP 16821292A JP 3052021 B2 JP3052021 B2 JP 3052021B2
- Authority
- JP
- Japan
- Prior art keywords
- pile
- pipe
- ground
- piles
- underground beam
- 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
- Foundations (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、線路や河川等の下部に
地中梁を構築する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 method for constructing an underground beam under a track or a river.
【０００２】[0002]
【従来の技術】図６に示すように、鉄道駅上にビル等の
構造物ａを構築する場合は、ホ−ムｂ部分の下方に杭ｃ
を施工し、この杭ｃ上に柱を立てて建設する方法が、一
般的に用いられている。この際に、杭ｃだけでは強度が
十分でないため、杭ｃ間を梁ｄにより水平方向に連結す
る必要がある。しかし、梁ｄは線路ｅの下部を横断する
ため、杭ｃのように地上から構築することはできない。
そこで、従来、この梁ｄを架設する方法として、推進機
ｆにより杭ｃ群の横側から鋼管を押し出し、杭ｃと結合
した後に鋼管内にコンクリ−トを打設して地中梁を構築
する方法がとられている。2. Description of the Related Art As shown in FIG. 6, when a structure a such as a building is constructed on a railway station, a pile c is provided below a home b.
In general, a method of constructing by constructing a pillar on the pile c is used. At this time, since the pile c alone does not have sufficient strength, it is necessary to connect the piles c horizontally with the beam d. However, since the beam d crosses the lower part of the track e, it cannot be constructed from the ground like the pile c.
Therefore, conventionally, as a method of erection of the beam d, a steel pipe is extruded from the side of the pile c group by the propulsion device f, and after joining with the pile c, concrete is poured into the steel pipe to construct an underground beam. The way to do it is taken.
【０００３】[0003]
【発明が解決しようとする課題】上記の従来技術には、
次のような問題点が存在する。即ち、梁ｄに鋼管を用い
た場合、梁ｄの剛性を高めるためには、大口径の鋼管を
用いる必要がある。従って、コンクリ−トの打設量が増
大し、梁施工のコストが高くなる。また、大口径の鋼管
を押し出し工法で施工するのは容易でなく、施工性が問
題となる。SUMMARY OF THE INVENTION The above prior arts include:
The following problems exist. That is, when a steel pipe is used for the beam d, it is necessary to use a large-diameter steel pipe in order to increase the rigidity of the beam d. Accordingly, the amount of concrete to be cast increases, and the cost of beam construction increases. Further, it is not easy to construct a large-diameter steel pipe by the extrusion method, and the workability becomes a problem.
【０００４】[0004]
【課題を解決するための手段】本発明は、上記のような
問題点を解決するためになされたもので、施工コストの
低減及び施工性の向上を図ることができる地中梁の架設
方法を提供することを目的とする。即ち、本発明は、地
中に鉛直方向に構築した複数の杭間に水平方向に梁を架
設する方法において、上下方向に間隔をおいて平行に配
置した複数の管体と、これらの管体間を連結する鋼板と
よりなる梁を用いて、前記管体内に掘削手段を収納し、
梁を地中に水平方向に推進させて杭間に架設することを
特徴とした、地中梁の架設方法である。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a method of erection of an underground beam capable of reducing construction costs and improving workability. The purpose is to provide. That is, the present invention relates to a method of erection of a beam in a horizontal direction between a plurality of piles constructed vertically in the ground, comprising: a plurality of pipes arranged in parallel at intervals in a vertical direction; Using a beam made of a steel plate connecting between the two, storing the excavation means in the pipe,
An underground beam erection method characterized in that the beam is propelled horizontally in the ground and installed between piles.
【０００５】[0005]
【実施例】以下、図面を参照しながら、本発明の一実施
例について説明する。 ＜イ＞杭の構築（図２） 構造物の基礎となる杭１を、地中に鉛直方向に複数構築
する。この杭１は、鉄道のホ−ム２の下部に構築するた
め、地上から公知の施工方法で構築することができる。
即ち、ホ−ム２のコンクリ−ト躯体部を貫通させて地中
に鉛直方向に孔を掘削し、鉄筋籠を立て込んだ後にコン
クリ−トを打設する方法等で行われる。この際に、杭１
の頭部には、地中梁と結合させるための溝１１を設け
る。An embodiment of the present invention will be described below with reference to the drawings. <B> Construction of piles (Fig. 2) Pile 1 which is the foundation of the structure is constructed vertically in the ground. Since this pile 1 is constructed under the railway home 2, it can be constructed from the ground by a known construction method.
That is, a method of drilling a hole vertically in the ground by penetrating the concrete frame of the home 2 and setting up a steel cage and then placing concrete is performed. At this time, pile 1
Is provided with a groove 11 for coupling with an underground beam.
【０００６】＜ロ＞梁の構造（図３、４） 図３、４に本発明に用いる梁３の構造を示す。この梁３
は、上下方向に間隔をおいて平行に配置した上部管３１
と下部管３２との間を、鋼製のウェブプレ−ト３３で連
結する構造である。上部管３１及び下部管３２は、いず
れも両端開放型の管体である。また、ウェブプレ−ト３
３は、その推進先端部に刃先３４を設け、押し出し抵抗
の低減を図る。このように構成した梁３の曲げ剛性は、
上部管３１及び下部管３２の径と肉厚、及びウェブプレ
−ト３３の高さ寸法により調整する。また、ウェブプレ
−ト３３の厚さは、剪断力に耐え得る厚さとし、加えて
腐食代を考慮して決定する。なお、本実施例では管体を
２本用いて梁を構成した場合について説明するが、３本
以上用いて構成する場合も考えられる。<B> Beam Structure (FIGS. 3 and 4) FIGS. 3 and 4 show the structure of the beam 3 used in the present invention. This beam 3
Is an upper tube 31 arranged in parallel at intervals in the vertical direction.
And the lower tube 32 are connected by a steel web plate 33. Both the upper tube 31 and the lower tube 32 are open-ended tubes. Web plate 3
No. 3 is provided with a cutting edge 34 at the propulsion front end to reduce the pushing resistance. The bending rigidity of the beam 3 configured as described above is
It is adjusted by the diameter and thickness of the upper tube 31 and the lower tube 32 and the height of the web plate 33. The thickness of the web plate 33 is determined in consideration of the corrosion allowance in addition to the thickness that can withstand the shearing force. In this embodiment, a case where a beam is formed by using two pipes will be described. However, a case where three or more pipes are used may be considered.
【０００７】＜ハ＞掘削手段の収納（図３） 梁３の推進の準備として、上部管３１及び下部管３２内
に、公知の掘削手段を収納する。この掘削手段として
は、例えば管内に沿ってスクリュ−コンベア４を配置
し、その掘削先端部にカッタ−ヘッド４１を設ける構造
等を採用する。<C> Storage of excavation means (FIG. 3) In preparation for propulsion of the beam 3, known excavation means is stored in the upper pipe 31 and the lower pipe 32. As the excavating means, for example, a structure in which the screw conveyor 4 is arranged along the inside of the pipe and the cutter head 41 is provided at a tip of the excavation is adopted.
【０００８】＜ニ＞梁の押し出し（図５） 杭１群の側方に立坑を掘削し、その内部に公知の推進機
５を設置する。次に、上記のように構成した梁３を順次
接続しながら、この推進機５により地中に水平方向に押
し出す。そして、各杭１の溝１１内に梁３を通しなが
ら、反対側まで推進させる。<D> Extrusion of Beam (FIG. 5) A shaft is excavated on the side of the group of piles 1, and a well-known propulsion device 5 is installed therein. Next, while sequentially connecting the beams 3 configured as described above, the beams 3 are extruded horizontally into the ground by the propulsion device 5. Then, the pile 3 is propelled to the opposite side while passing the beam 3 through the groove 11.
【０００９】＜ホ＞梁と杭との結合 梁３の推進が終了した後、梁３と杭１との結合を行う。
この場合、溝１１部分の上部管３１及び下部管３２を切
断し、両管３１、３２内に配置した鉄筋と、溝１１に露
出する杭１の鉄筋とを接合する。また、ウェブプレ−ト
３３にはジベルを突設する。そして、上部管３１及び下
部管３２内と、溝１１内にコンクリ−トを打設して、両
者を一体に結合する。なお、上部管３１及び下部管３２
を切断しないで、それらの表面にジベルを突設して、コ
ンクリ−トを打設しても良い。これらの鉄筋やジベルに
よって、梁３と杭１との力の伝達が良好に行われる。杭
１と梁３が一体に結合した後に、図１に示すように、杭
１に柱２２を立ち上げて、構造物２３を構築する。<E> Connection of Beam and Pile After the propulsion of the beam 3 is completed, the connection of the beam 3 and the pile 1 is performed.
In this case, the upper pipe 31 and the lower pipe 32 in the groove 11 are cut, and the reinforcing steel arranged in the two pipes 31 and 32 and the reinforcing steel of the pile 1 exposed in the groove 11 are joined. A dowel is provided on the web plate 33. Then, concrete is cast in the upper tube 31 and the lower tube 32 and in the groove 11, and the two are integrally joined. The upper pipe 31 and the lower pipe 32
Instead of cutting, a dowel may be protrudingly provided on the surface and a concrete may be cast. The transmission of the force between the beam 3 and the pile 1 is favorably performed by these rebars and dowels. After the stake 1 and the beam 3 are integrally joined, as shown in FIG. 1, the pillar 22 is set up on the stake 1 to construct the structure 23.
【００１０】[0010]
【本発明の効果】本発明は以上説明したようになるた
め、次のような効果を得ることができる。 ＜イ＞本発明の梁構造は、小口径の鋼管と鋼板との組み
合わせによりなるため、従来の大口径の鋼管を用いた構
造と比較すると、コンクリ−トの打設量が最小限で済
み、コストの低減を図ることができる。 ＜ロ＞また、上記のような梁構造であるため、掘進断面
も最小限で済み、施工を容易に行うことができる。Since the present invention has been described above, the following effects can be obtained. <A> Since the beam structure of the present invention is composed of a combination of a small-diameter steel pipe and a steel plate, compared with a conventional structure using a large-diameter steel pipe, the amount of concrete to be cast is minimized. Cost can be reduced. <B> In addition, since the beam structure is as described above, the excavated cross section is minimized, and the construction can be easily performed.
【図１】 梁と杭との結合状態を示めす説明図FIG. 1 is an explanatory view showing a connection state between a beam and a pile.
【図２】 杭の構築工程の説明図FIG. 2 is an explanatory view of a pile construction process.
【図３】 梁構造の説明図FIG. 3 is an explanatory view of a beam structure.
【図４】 梁構造の説明図FIG. 4 is an explanatory view of a beam structure.
【図５】 梁の押し出し工程の説明図FIG. 5 is an explanatory view of a beam extrusion process.
【図６】 従来技術の説明図FIG. 6 is an explanatory view of a conventional technique.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) E02D 27/48 E02D 27/00 E21D 9/06 311 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. 7 , DB name) E02D 27/48 E02D 27/00 E21D 9/06 311
Claims (1)
水平方向に梁を架設する方法において、 上下方向に間隔をおいて平行に配置した複数の管体と、
これらの管体間を連結する鋼板とよりなる梁を用いて、 前記管体内に掘削手段を収納し、 梁を地中に水平方向に推進させて杭間に架設することを
特徴とした、 地中梁の架設方法。1. A method of laying a beam in a horizontal direction between a plurality of piles constructed vertically in the ground, comprising: a plurality of pipes arranged in parallel at intervals in a vertical direction;
By using a beam made of a steel plate connecting these pipes, the excavating means is housed in the pipe, and the beam is propelled horizontally in the ground to be installed between the piles. Construction method of the center beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4168212A JP3052021B2 (en) | 1992-06-04 | 1992-06-04 | Underground beam erection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4168212A JP3052021B2 (en) | 1992-06-04 | 1992-06-04 | Underground beam erection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05339950A JPH05339950A (en) | 1993-12-21 |
| JP3052021B2 true JP3052021B2 (en) | 2000-06-12 |
Family
ID=15863868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4168212A Expired - Fee Related JP3052021B2 (en) | 1992-06-04 | 1992-06-04 | Underground beam erection method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3052021B2 (en) |
-
1992
- 1992-06-04 JP JP4168212A patent/JP3052021B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05339950A (en) | 1993-12-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |