JPH07133700A - Method of building shield tunnel - Google Patents
Method of building shield tunnelInfo
- Publication number
- JPH07133700A JPH07133700A JP5304820A JP30482093A JPH07133700A JP H07133700 A JPH07133700 A JP H07133700A JP 5304820 A JP5304820 A JP 5304820A JP 30482093 A JP30482093 A JP 30482093A JP H07133700 A JPH07133700 A JP H07133700A
- Authority
- JP
- Japan
- Prior art keywords
- segment
- temporary
- tension member
- segments
- column
- 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
- Lining And Supports For Tunnels (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、シールドトンネルの構
築方法に係り、特にシールドトンネルのセグメントに、
引張部材を広い作業空間で取り付けることができるよう
にしたシールドトンネルの構築方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of constructing a shield tunnel, and more particularly to a shield tunnel segment.
The present invention relates to a method for constructing a shield tunnel that allows a tensile member to be attached in a wide working space.
【０００２】[0002]
【従来の技術】一般に、シールドトンネルのセグメント
において、セグメントに働く曲げモーメントを軽減する
目的で、引張部材を設置する。そして、従来はシールド
機のテール部内でセグメントを組み立てた後、特別仮柱
等で支えることなく直接引張部材を取り付けるようにし
ている。2. Description of the Related Art Generally, in a shield tunnel segment, a tension member is installed in order to reduce a bending moment acting on the segment. Then, conventionally, after assembling the segments in the tail portion of the shield machine, the tensile member is directly attached without being supported by a special temporary column or the like.
【０００３】[0003]
【発明が解決しようとする課題】前述のごとく、従来技
術ではシールド機のテール部内でセグメントを組み立て
後、引張部材を直接取り付けるようにしているので、次
のような問題があった。 （１） シールド機のテール部内という狭い作業空間の
中で引張部材を取り付けなければならず、作業環境が悪
い。 （２） セグメントにおける荷重が作用して内側に変形
する部分が発生するので、セグメントの組み立て作業に
時間が掛かる。As described above, in the prior art, the tensile member is directly attached after the segments are assembled in the tail portion of the shield machine, so that there are the following problems. (1) The tension member must be installed in a narrow working space such as the tail portion of the shield machine, and the working environment is bad. (2) Since a load acts on the segment to generate a portion that is deformed inward, it takes time to assemble the segment.
【０００４】本発明は、上記のことに鑑みなされたもの
で、その目的とするところは、セグメントに引張部材を
広い作業空間で取り付けることができ、かつセグメント
の組み立ておよび引張部材の取り付けを能率良く行い得
るシールドトンネルの構築方法を提供することにある。The present invention has been made in view of the above circumstances, and an object of the present invention is to attach a tension member to a segment in a wide working space, and to assemble the segment and attach the tension member efficiently. It is to provide a method of constructing a shield tunnel that can be performed.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するた
め、本発明はシールドトンネル３のセグメント４におけ
る荷重が作用し内側に変形する部位に仮柱５を設置し、
この仮柱５の後方で引張部材６を取り付ける前あるいは
取り付けた後に、仮柱５を撤去し、本体構造物として仮
柱５から引張部材６に盛り替えるようにしたものであ
る。In order to achieve the above object, the present invention installs a temporary column 5 at a portion of a segment 4 of a shield tunnel 3 which is deformed inward by a load.
Before or after attaching the tension member 6 behind the temporary column 5, the temporary column 5 is removed, and the temporary column 5 is replaced with the tension member 6 as a main body structure.
【０００６】[0006]
【作用】本発明では、シールド機１のテール部２でセグ
メント４を組み立て、そのセグメント４における荷重が
作用し内側に変形する部位に仮柱５を設置し、セグメン
ト４を１リング構築する。In the present invention, the segment 4 is assembled by the tail portion 2 of the shield machine 1, and the temporary column 5 is installed at a portion of the segment 4 which is subjected to a load to be deformed inward to construct the segment 4 as one ring.
【０００７】以上の作業を適宜数回繰り返し、シールド
トンネル３を掘削して行き、仮柱５を設置したセグメン
ト４内を、シールド機１の後続設備の通過後あるいは通
過前に、仮柱５の後方でセグメント４に働く曲げモーメ
ントを軽減するための引張部材６を取り付ける。そし
て、前記引張部材６を取り付ける前あるいは後に、仮柱
５を撤去し、本体構造物を仮柱５から引張部材６に盛り
替える。The above work is repeated a number of times to excavate the shield tunnel 3 and to move the temporary pillar 5 inside the segment 4 in which the temporary pillar 5 is installed, before or after the passage of the succeeding equipment of the shield machine 1. A tension member 6 is attached to reduce the bending moment acting on the segment 4 at the rear. Then, before or after attaching the tension member 6, the temporary column 5 is removed, and the main body structure is replaced with the tension member 6 from the temporary column 5.
【０００８】これにより、本発明では引張部材６の取り
付けを、シールド機１の狭いテール部２で行う必要がな
く、シールド機１の後続設備が仮柱５を立てたセグメン
ト４を通過後あるいは通過前に、十分な間隔を取って、
広い作業空間内でセグメント４に引張部材６を取り付け
ることができるので、安全にかつ確実に取り付け作業を
行うことができる。Therefore, according to the present invention, it is not necessary to attach the tension member 6 to the narrow tail portion 2 of the shield machine 1, and the succeeding equipment of the shield machine 1 passes through or passes through the segment 4 on which the temporary column 5 is erected. Before, take a sufficient interval,
Since the tension member 6 can be attached to the segment 4 in a large work space, the attachment work can be performed safely and reliably.
【０００９】また、シールド機１のテール部２では、セ
グメント４を組み立て、そのセグメント４における荷重
の作用で内側に変形する部位に仮柱５を立てて行うた
め、セグメント４の組み立て作業を能率良く行うことが
できるし、引張部材６の取り付けは広い作業空間で行い
得るので、引張部材６の取り付け作業も能率良く行うこ
とが可能となる。Further, in the tail portion 2 of the shield machine 1, the segment 4 is assembled, and the temporary column 5 is erected at the portion of the segment 4 which is deformed inward by the action of the load, so that the segment 4 can be assembled efficiently. Since the pulling member 6 can be attached in a wide working space, the pulling member 6 can be attached efficiently.
【００１０】[0010]
【実施例】以下、本発明の実施例を図面に基づいて説明
する。Embodiments of the present invention will be described below with reference to the drawings.
【００１１】図１〜図３は本発明の一実施例を示すもの
で、図１はシールドトンネルの掘削状態を示す縦断側面
図、図２は図１のＡ−Ａ線断面図、図３は図１のＢ−Ｂ
線断面図である。1 to 3 show an embodiment of the present invention. FIG. 1 is a vertical cross-sectional side view showing an excavated state of a shield tunnel, FIG. 2 is a sectional view taken along line AA of FIG. 1, and FIG. BB of FIG.
It is a line sectional view.
【００１２】これらの図に示す実施例では、図１に示す
ように、シールド機１で地山を掘削し、シールド機１の
テール部２でセグメント４を組み立て、形状保持装置
（図示せず）等によりテール部２内でセグメント４の形
状を保持する。In the embodiment shown in these figures, as shown in FIG. 1, the shield machine 1 excavates the ground, the tail portion 2 of the shield machine 1 assembles the segments 4, and a shape retaining device (not shown) is used. The shape of the segment 4 is retained in the tail portion 2 by the above.
【００１３】ついで、図１および図２に示すように、セ
グメント４における荷重が作用し内側に変形する部位に
仮柱５を設置し、セグメント４の１リングを構築する。
前記仮柱５には、形鋼，鋼管，コンクリート柱等を用い
る。なお、この実施例では前記仮柱５を、トンネルの幅
方向に互いに間隔をおいて２本設置しているが、セグメ
ント４の１リング当たりの仮柱５の本数は、シールドト
ンネル３の形状，寸法，施工条件等により適宜決定す
る。Then, as shown in FIGS. 1 and 2, a temporary column 5 is installed at a portion of the segment 4 which is deformed inward by a load to construct a ring of the segment 4.
As the temporary column 5, a shaped steel, a steel pipe, a concrete column or the like is used. In this embodiment, the two temporary columns 5 are installed at intervals in the width direction of the tunnel, but the number of the temporary columns 5 per ring of the segment 4 depends on the shape of the shield tunnel 3. Appropriately determined according to dimensions, construction conditions, etc.
【００１４】以上の作業を適宜数回繰り返して行い、シ
ールドトンネル３を掘削して行く。そして、仮柱５を立
てたセグメント４内にシールド機１の後続設備（図示せ
ず）を通過させた後、十分な間隔をおき、広い作業空間
を確保したうえで、図１および図３に示すように、仮柱
５の後方で、セグメント４に働く曲げモーメントを軽減
するための引張部材６を取り付ける。この引張部材６に
は、形鋼，鋼管，鋼棒等を用いる。The above work is repeated appropriately several times to excavate the shield tunnel 3. Then, after passing through a subsequent facility (not shown) of the shield machine 1 into the segment 4 in which the temporary pillar 5 is erected, a sufficient working space is provided to secure a wide working space, and then, as shown in FIGS. As shown, behind the temporary column 5, a tension member 6 for reducing a bending moment acting on the segment 4 is attached. As the tensile member 6, a shaped steel, a steel pipe, a steel rod or the like is used.
【００１５】そして、セグメント４に引張部材６を取り
付ける前あるいは取り付けた後に、仮柱５を取り外し、
本体構造物を仮柱５から引張部材６に順次盛り替えて行
く。Then, before or after attaching the tension member 6 to the segment 4, the temporary column 5 is removed,
The main body structure is sequentially replenished from the temporary column 5 to the tension member 6.
【００１６】以上のように、この実施例では引張部材６
の取り付けを、シールド機１のテール部２内では行わ
ず、後続設備が通り過ぎた広い作業空間で行うことがで
きるので、引張部材６の取り付け作業を安全にかつ確実
に行うことができる。As described above, the tension member 6 is used in this embodiment.
Since the attachment can be performed in the large work space where the subsequent equipment has passed without performing the attachment in the tail portion 2 of the shield machine 1, the attachment work of the tension member 6 can be performed safely and reliably.
【００１７】また、セグメント４に作用する荷重で内側
に変形する部位に仮柱５を立てて行うようにしているの
で、セグメント４の組み立て作業を能率良く行うことが
できる。また、引張部材６の取り付けは後続設備の通過
後あるいは通過前の広い作業空間で行い得るので、この
引張部材６の取り付け作業も能率良く行うことができ
る。Further, since the temporary column 5 is erected at the portion which is deformed inward by the load acting on the segment 4, the segment 4 can be assembled efficiently. Further, since the tension member 6 can be attached in a wide working space after or before the passage of the subsequent equipment, the attachment work of the tension member 6 can be efficiently performed.
【００１８】次に、図４および図５は本発明の他の実施
例を示すもので、図４はシールドトンネルの掘削状態の
縦断面図、図５は図４のＣ−Ｃ線断面図である。Next, FIGS. 4 and 5 show another embodiment of the present invention. FIG. 4 is a longitudinal sectional view of a shield tunnel in an excavated state, and FIG. 5 is a sectional view taken along line CC of FIG. is there.
【００１９】これらの図に示す実施例では、セグメント
４における荷重が作用し内側に変形する部位としての、
トンネルの幅方向のほぼ中央部に、仮柱５を設置してい
る。In the embodiments shown in these drawings, the load acting on the segment 4 is a portion which is deformed inward,
A temporary pillar 5 is installed at a substantially central portion in the width direction of the tunnel.
【００２０】この実施例にように、掘削されたトンネル
の形態によっては、トンネルの幅方向のほぼ中央部に仮
柱５を１本設置しても、セグメント４に掛かる荷重を支
え、セグメント４の変形を防止することができる。As shown in this embodiment, depending on the form of the excavated tunnel, even if one temporary column 5 is installed in the central portion in the width direction of the tunnel, the load applied to the segment 4 is supported and the segment 4 is supported. Deformation can be prevented.
【００２１】この実施例の他の構成，作用については、
前記図１〜図３に示す実施例と同様である。Regarding other constitution and operation of this embodiment,
This is similar to the embodiment shown in FIGS.
【００２２】[0022]
【発明の効果】以上説明したように、本発明ではシール
ドトンネル３のセグメント４における荷重が作用し内側
に変形する部位に仮柱５を設置し、この仮柱５の後方で
引張部材６を取り付ける前あるいは取り付けた後に、仮
柱５を撤去し、本体構造物として仮柱５から引張部材６
に盛り替えるようにしており、引張部材６の取り付け
を、シールド機１の狭いテール部２で行う必要がなく、
シールド機１の後続設備が仮柱５を立てたセグメント４
を通過後あるいは通過前に、十分な間隔を取って、広い
作業空間内でセグメント４に引張部材６を取り付けるこ
とができるので、引張部材６の取り付け作業を安全にか
つ確実に行い得る効果がある。As described above, according to the present invention, the temporary column 5 is installed at a portion of the segment 4 of the shield tunnel 3 which is deformed inward by the load, and the tension member 6 is attached behind the temporary column 5. Before or after mounting, the temporary pillar 5 is removed, and the temporary pillar 5 is pulled from the temporary pillar 5 as a main body structure.
Therefore, it is not necessary to attach the tension member 6 in the narrow tail portion 2 of the shield machine 1,
Subsequent equipment of the shield machine 1 is a segment 4 with a temporary column 5
Since the tension member 6 can be attached to the segment 4 within a wide working space with a sufficient space after or before passing through, the attachment work of the tension member 6 can be performed safely and surely. .
【００２３】また、シールド機１のテール部２でセグメ
ント４を組み立て、そのセグメント４における荷重が作
用し内側に変形する部位に仮柱５を立てて組み立てるよ
うにしているので、セグメント４の組み立て作業を能率
良く行い得る効果があり、引張部材６の取り付けを広い
作業空間で行い得るので、この引張部材６の取り付け作
業も能率良く行い得る効果がある。Further, since the segment 4 is assembled by the tail portion 2 of the shield machine 1 and the temporary column 5 is erected at a portion of the segment 4 which is deformed inward by a load, the segment 4 is assembled. Since the tension member 6 can be mounted in a wide working space, the tension member 6 can be mounted efficiently.
【図１】本発明の一実施例を示すもので、シールドトン
ネルの掘削状態を示す縦断側面図である。FIG. 1 is a vertical sectional side view showing an excavated state of a shield tunnel according to an embodiment of the present invention.
【図２】図１のＡ−Ａ線断面図である。FIG. 2 is a sectional view taken along the line AA of FIG.
【図３】図１のＢ−Ｂ線断面図である。FIG. 3 is a sectional view taken along line BB of FIG.
【図４】本発明の他の実施例を示すもので、シールドト
ンネルの掘削状態を示す縦断側面図である。FIG. 4 is a vertical sectional side view showing an excavated state of a shield tunnel according to another embodiment of the present invention.
【図５】図４のＣ−Ｃ線断面図である。5 is a cross-sectional view taken along line CC of FIG.
１ シールド機 ２ シールド機のテール部 ３ シールドトンネル ４ セグメント ５ 仮柱 ６ 引張部材 1 Shield Machine 2 Shield Machine Tail Part 3 Shield Tunnel 4 Segment 5 Temporary Pillar 6 Tensile Member
───────────────────────────────────────────────────── フロントページの続き (72)発明者 井上 正巳 東京都中央区新川１丁目24番４号 大豊建 設株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masami Inoue 1-24-4 Shinkawa, Chuo-ku, Tokyo Daitoken Construction Co., Ltd.
Claims (1)
ける荷重が作用し内側に変形する部位に仮柱５を設置
し、この仮柱５の後方で引張部材６を取り付ける前ある
いは取り付けた後に、仮柱５を撤去し、本体構造物とし
て仮柱５から引張部材６に盛り替えることを特徴とする
シールドトンネルの構築方法。1. A temporary pillar 5 is installed at a position where a load acts on a segment 4 of a shield tunnel 3 and is deformed inward, and before or after a tension member 6 is mounted behind the temporary pillar 5, a temporary pillar 5 is installed. Is removed and the temporary structure 5 is replaced with the tension member 6 as the main body structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5304820A JP2514904B2 (en) | 1993-11-10 | 1993-11-10 | How to build a shield tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5304820A JP2514904B2 (en) | 1993-11-10 | 1993-11-10 | How to build a shield tunnel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07133700A true JPH07133700A (en) | 1995-05-23 |
| JP2514904B2 JP2514904B2 (en) | 1996-07-10 |
Family
ID=17937652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5304820A Expired - Fee Related JP2514904B2 (en) | 1993-11-10 | 1993-11-10 | How to build a shield tunnel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2514904B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010101023A (en) * | 2008-10-21 | 2010-05-06 | Ohbayashi Corp | Method and structure for reinforcing segment |
| JP2012172336A (en) * | 2011-02-18 | 2012-09-10 | Ohbayashi Corp | Vertical crush prevention structure of shield tunnel, vertical crush prevention method of shield tunnel, and shield tunnel |
| JP2014201909A (en) * | 2013-04-02 | 2014-10-27 | 株式会社大林組 | Segment assembly method of shield tunnel and tunnel boring machine used therefor |
| CN109057809A (en) * | 2018-08-02 | 2018-12-21 | 中交第二航务工程局有限公司 | The technique for being conveniently replaceable the sliding section of jurisdiction of shield tail brush and replacing shield tail brush using it |
| CN112459805A (en) * | 2020-12-30 | 2021-03-09 | 中铁二十五局集团有限公司 | Shield segment dismounting construction method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03212599A (en) * | 1990-01-17 | 1991-09-18 | Daiho Constr Co Ltd | Segment |
| JPH0518192A (en) * | 1991-02-13 | 1993-01-26 | Ishikawajima Constr Materials Co Ltd | Construction method for tunnel and lining segment |
-
1993
- 1993-11-10 JP JP5304820A patent/JP2514904B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03212599A (en) * | 1990-01-17 | 1991-09-18 | Daiho Constr Co Ltd | Segment |
| JPH0518192A (en) * | 1991-02-13 | 1993-01-26 | Ishikawajima Constr Materials Co Ltd | Construction method for tunnel and lining segment |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010101023A (en) * | 2008-10-21 | 2010-05-06 | Ohbayashi Corp | Method and structure for reinforcing segment |
| JP4661937B2 (en) * | 2008-10-21 | 2011-03-30 | 株式会社大林組 | Segment reinforcing method and segment reinforcing structure |
| JP2012172336A (en) * | 2011-02-18 | 2012-09-10 | Ohbayashi Corp | Vertical crush prevention structure of shield tunnel, vertical crush prevention method of shield tunnel, and shield tunnel |
| JP2014201909A (en) * | 2013-04-02 | 2014-10-27 | 株式会社大林組 | Segment assembly method of shield tunnel and tunnel boring machine used therefor |
| CN109057809A (en) * | 2018-08-02 | 2018-12-21 | 中交第二航务工程局有限公司 | The technique for being conveniently replaceable the sliding section of jurisdiction of shield tail brush and replacing shield tail brush using it |
| CN112459805A (en) * | 2020-12-30 | 2021-03-09 | 中铁二十五局集团有限公司 | Shield segment dismounting construction method |
| CN112459805B (en) * | 2020-12-30 | 2022-05-20 | 中铁二十五局集团有限公司 | Shield segment dismounting construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2514904B2 (en) | 1996-07-10 |
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