JPH02153196A - Tunnel excavation method and shield excavation - Google Patents
Tunnel excavation method and shield excavationInfo
- Publication number
- JPH02153196A JPH02153196A JP30628488A JP30628488A JPH02153196A JP H02153196 A JPH02153196 A JP H02153196A JP 30628488 A JP30628488 A JP 30628488A JP 30628488 A JP30628488 A JP 30628488A JP H02153196 A JPH02153196 A JP H02153196A
- Authority
- JP
- Japan
- Prior art keywords
- shield
- tunnel
- station
- excavator
- excavators
- 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
- 238000000034 method Methods 0.000 title claims description 12
- 238000009412 basement excavation Methods 0.000 title claims description 11
- 230000008878 coupling Effects 0.000 abstract 2
- 238000010168 coupling process Methods 0.000 abstract 2
- 238000005859 coupling reaction Methods 0.000 abstract 2
- 230000005641 tunneling Effects 0.000 description 23
- 238000010276 construction Methods 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明はトンネル掘削方法およびシールド掘進機に関す
る。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a tunnel excavation method and a shield excavator.
従来の技術
従来、シールド工法において、地下鉄の駅を構築する場
合、第１４図に示すように、２台のシールド掘進機で２
本の路線用トンネル３１を掘削後、両トンネル３１間の
上部に２本のかんざし状の桁材３２を圧入し、そして両
トンネル３１の内側セグメント３１ａを解体した後、第
１５図に示すように桁材３２の下部を拡げて駅用トンネ
ル３３を構築していた。また、第１６図に示すように、
２本のトンネル４１間の上方部にルーフシールド機４２
を配置して上方部を掘削後、上記同様にその下部を掘削
して駅用トンネル４３を構築していた。Conventional technology Conventionally, when constructing a subway station using the shield method, two shield excavators are used to construct two subway stations, as shown in Figure 14.
After excavating the main line tunnel 31, press-fitting two hairpin-shaped girder members 32 into the upper part between both tunnels 31, and dismantling the inner segments 31a of both tunnels 31, as shown in FIG. A station tunnel 33 was constructed by expanding the lower part of the girder 32. Also, as shown in Figure 16,
A roof shield machine 42 is installed in the upper part between the two tunnels 41.
After arranging and excavating the upper part, the station tunnel 43 was constructed by excavating the lower part in the same manner as described above.
発明が解決しようとする課題。The problem that the invention aims to solve.
上記従来の工法によると、トンネル貫通後に、駅の構築
を行なうため工期が長くなるとともに、かんざし状の桁
材の下方を掘削する際に、上水のだめの薬液注入、圧気
工法などの補助工法が必要となり、特に大深度の掘削と
なると、地下水圧が高くなり上記の構築方法では困難に
なるという課題があった。According to the above-mentioned conventional construction method, the construction period is longer because the station is constructed after the tunnel has been penetrated, and auxiliary construction methods such as chemical injection into the water reservoir and pressurized air construction are required when excavating below the hairpin-shaped girder. When excavation becomes necessary, particularly at great depths, groundwater pressure increases, making it difficult to use the construction method described above.
そこで１本発明は上記課題を解消し得るトンネル掘削方
法およびシールド掘進機を提供することを目的とする。Therefore, one object of the present invention is to provide a tunnel excavation method and a shield excavator that can solve the above problems.
課題を解決するための手段
上記課題を解決するため、本発明のトンネル掘削方法は
、２本の地下鉄路線用トンネルを並列に掘削する２台の
第１シールド掘進機間に、かつ駅部手前で第２のシール
ド掘進機を連結配置して、駅用トンネルと路線用トンネ
ルとを同時に掘削する方法である。Means for Solving the Problems In order to solve the above problems, the tunnel excavation method of the present invention provides a method for excavating tunnels between two first shield excavators that excavate two subway line tunnels in parallel and in front of the station. This is a method in which a second shield excavator is connected and arranged to simultaneously excavate a station tunnel and a route tunnel.
また、上記トンネル掘削方法に使用されるシールド掘進
機は、シールド本体の左右いずれかの側部が取外し可能
に構成された２台の第１シールド掘進機と、これら第１
シールド掘進機の取外し側部間に配置されるとともにシ
ールド゛本体の両側部が解放された第２シールド掘進機
と、上記各第１シールド掘進機の取外し側部と第２シー
ルド掘進機の各解放側部とを連結する連結部材とから構
成したものである。Further, the shield tunneling machine used in the tunnel excavation method described above includes two first shield tunneling machines each having a shield body configured such that either the left or right side portion is removable, and the first
A second shield excavator is disposed between the detachable sides of the shield excavator and both sides of the shield main body are released, and each of the detachable side sections of the first shield excavator and the second shield excavator is released. and a connecting member that connects the side portions.
作用
上記の構成においＴ、地下鉄の駅を構築する場合、路線
用トンネルを掘削する２台の第１シールド掘進機間に、
駅用トンネルを掘削する第２シールド掘進機を挿入し、
そして少なくとも第１シールド掘進機のシールド本体の
取外し側部を外すとともに連結部材により３台のシール
ド掘進機を互いに一体的に連結する。そして、この状態
で掘削すれば、駅用トンネルと路線用トンネルとを同時
にかつ安全に形成することができる。Operation In the above configuration, when constructing a subway station, between the two first shield excavators that excavate the route tunnel,
Insert the second shield excavator to excavate the station tunnel,
Then, the detachable side portion of the shield main body of at least the first shield tunneling machine is removed, and the three shield tunneling machines are integrally connected to each other by the connecting member. By excavating in this state, a station tunnel and a route tunnel can be formed simultaneously and safely.
実施例
以下、本発明の一実施例を第１図〜第７図に基づき説明
する。EXAMPLE Hereinafter, an example of the present invention will be described based on FIGS. 1 to 7.
まず、２本の路線用トンネルとこれら両トンネル間に設
けられる駅用トンネル（コンコース用トンネル）とを同
時に掘削するシールド掘進機について説明する。First, a shield excavator that simultaneously excavates two route tunnels and a station tunnel (concourse tunnel) provided between these two tunnels will be described.
このシールド掘進機は、第１図に示すように、２本の地
下鉄路線用トンネルを掘削する２台の小径用第１シール
ド掘進機１と、これら両筒１シールド掘進機１間に配置
されるとともに駅用トンネルを掘削する大径用第２シー
ルド掘進機２と、両筒１シールド掘進機１と第２シール
ド掘進機２とを連結する連結ブロック（連結部材）３と
から構成されている。上記各シールド掘進機１，２は、
第４図に示すように、シールド本体４．５と、その前部
に回転自在に設けられたカッタヘッド６゜７と、シール
ド本体４，５内に配置されたカッタヘッド６．７用の回
転駆動装置８．９とから構成され、さらに各シールド本
体４，５は、フード部１０．１１ガ一ダ部１２，１３お
よびテール部１４．１５とから構成されている。そして
、第５図〜第７図に示すように、第１シールド掘進機１
のシールド本体４すなわちフード部１０、ガーダ部１２
、テール部１４の左右どちらかの各側部１０ａ 、 １
２ａ 、 １４ａが所定範囲に亘って取外し可能にされ
るとともに、第２シールド掘進機２のシールド本体５の
ガーダ部１３およびテール部１５の両側部１３ａ、１５
ａが所定範囲に亘って取外し可能にされている。また、
連結ブロック３は、シールド本体４，５同士を接続する
上部接続材３ａおよび下部接続材３ｂと、これら上下部
接続材３ａ、３ｂ同士を接続する複数本（例えば２本）
の支柱３ｃとから構成されている。なお、第２シールド
掘進機２のカッタヘット７は、第１シールド掘進機１の
カッタヘッド６よりも前方に配置されるため、取外し部
分はない。また、上記連結ブロック３の接続材３ａ、３
ｂにも、シールドジヤツキ１６が配置されている。As shown in Fig. 1, this shield tunneling machine is arranged between two small-diameter first shield tunneling machines 1 that excavate tunnels for two subway lines, and these two-tube 1 shield tunneling machines 1. It also includes a large-diameter second shield excavator 2 that excavates a station tunnel, and a connecting block (connecting member) 3 that connects the double-tube single shield excavator 1 and the second shield excavator 2. Each of the above-mentioned shield tunneling machines 1 and 2 is
As shown in FIG. 4, a shield main body 4.5, a cutter head 6.7 rotatably provided in the front part of the shield main body 4.5, and a rotary cutter head 6.7 disposed within the shield main bodies 4, 5. Each shield body 4, 5 further comprises a hood part 10.11, a girder part 12, 13 and a tail part 14.15. Then, as shown in FIGS. 5 to 7, the first shield excavator 1
The shield main body 4, that is, the hood part 10, the girder part 12
, each side portion 10a on either the left or right side of the tail portion 14, 1
2a, 14a are made removable over a predetermined range, and both sides 13a, 15 of the girder part 13 and tail part 15 of the shield body 5 of the second shield excavator 2 are made removable over a predetermined range.
a is made removable over a predetermined range. Also,
The connecting block 3 includes an upper connecting member 3a and a lower connecting member 3b that connect the shield bodies 4 and 5, and a plurality of pieces (for example, two pieces) that connect the upper and lower connecting members 3a and 3b.
It is composed of a pillar 3c. In addition, since the cutter head 7 of the second shield excavator 2 is arranged in front of the cutter head 6 of the first shield excavator 1, there is no part to be removed. In addition, the connecting members 3a, 3 of the connecting block 3 are
A shield jack 16 is also arranged at b.
次に、地下鉄の駅部の掘削方法を第２図および第３図に
基づき説明する。Next, a method for excavating a subway station area will be explained based on FIGS. 2 and 3.
２台の第１シールド掘進機１により２本の路線用トンネ
ルＡが駅構築予定位置に達すると、両筒１シールド掘進
機１と、一方の立坑りから挿入されて一方のエスカレー
タ用トンネルＣを形成した第２シールド掘進機２とを連
結する。すなわち、第７図に示すように、各第１シール
ド掘進機１のシールド本体（フード部ｌＯ，ガーダ部１
２、テール部１４）４の互いの対向端部（駅用）の取外
し側部１０ａ 、 １２ａ 、 １４ａおよび第２シー
ルド掘進機２のシールド本体（ガーダ部１３、テール部
１５）５の両側の取外し側部（解放側部） １３ａ 、
Ｌ５ａを取外し、その後両シールド本体４，５間に連
結ブロック３を挿入連結（例えばボルトにより）して３
台のシールド掘進機１，２を第１図に示すように一体化
させる。そして、この状態でシールド掘進機１゜２を前
進させて掘削を行なえば、第３図に示すように、２本の
路線用トンネルＡと中間の駅用トンネルＢとが同時に掘
削される。そして、所定長さ掘削されると１両連結ブロ
ック３を取外した後。When the two line tunnels A reach the planned station construction position using the two first shield excavators 1, the double-tube one shield excavator 1 is inserted from one vertical shaft to open one escalator tunnel C. The formed second shield excavator 2 is connected. That is, as shown in FIG.
2. Removal of mutually opposing ends (for stations) of the tail portion 14) 4. Removal of both sides of the side portions 10a, 12a, 14a and the shield body (girder portion 13, tail portion 15) 5 of the second shield excavator 2. Side part (released side part) 13a,
Remove L5a, then insert and connect the connecting block 3 between both shield bodies 4 and 5 (for example, with bolts).
The shield tunneling machines 1 and 2 of the platform are integrated as shown in FIG. If the shield tunneling machine 1.degree. 2 is moved forward and excavation is performed in this state, the two route tunnels A and the intermediate station tunnel B are simultaneously excavated, as shown in FIG. After a predetermined length has been excavated, the one-car connecting block 3 is removed.
各シールド掘進機１，２の取外し側部１０ａ、１２ａ。Removal side parts 10a, 12a of each shield tunneling machine 1, 2.
１４ａ 、 １３ａ 、 １５ａを元に戻して、第１シ
ールド掘進機１により２本の路線用トンネルＡの掘削を
続行し、また第２シールド掘進機２により他方のエスカ
レータ用トンネルＣを掘削した後、他方の立坑（図示せ
ず）より取出せばよい。14a, 13a, and 15a are returned to their original positions, and the first shield excavator 1 continues to excavate the two route tunnels A, and the second shield excavator 2 excavates the other escalator tunnel C, and then It can be taken out from the other shaft (not shown).
ところで、上記実施例においては、駅部における路線用
トンネルＡの口径を変更しなかったが、例えば駅部にお
ける路線用トンネルＡの口径を大きくしたい場合、第８
図〜第１３図に示すように。By the way, in the above embodiment, the diameter of the route tunnel A in the station area was not changed, but for example, if it is desired to increase the diameter of the route tunnel A in the station area, the eighth
As shown in FIGS.
各第１シールド掘進機１のシールド本体４外周部（勿論
、この場合、取外し側部は外されている）に増設用フー
ド部ブｐツク２１、増設用ガーダ部ブロック２２および
増設用テール部ブロック２３が取付けられるとともに、
カッタヘッド６の外周にも増設用面板部ブロック２４が
取付けられる。なお、増設用ガーダ部ブロック２２およ
び連結ブロック２５には、シールドジヤツキ２６が配置
される。また、増設用の各ブロック２１〜２４はシール
ド本体４およびカッタヘッド６にボルトにより連結され
るが、テール部ブロック２３の外面スキンプレート部２
３ａの対向端面同士は溶接される。On the outer periphery of the shield main body 4 of each first shield excavator 1 (of course, in this case, the removal side part is removed) are an expansion hood block 21, an expansion girder block 22, and an expansion tail block. 23 is installed,
An extension face plate block 24 is also attached to the outer periphery of the cutter head 6. Note that a shield jack 26 is arranged on the expansion girder block 22 and the connection block 25. Each of the expansion blocks 21 to 24 is connected to the shield body 4 and the cutter head 6 by bolts, and the outer skin plate portion 2 of the tail block 23
Opposing end surfaces of 3a are welded together.
また、上記実施例においては、駅用トンネルＢの前後部
に、エスカレータ用トンネルＣを形成することにより、
第２シールド掘進機２を両筒１シールド掘進機１間に案
内したが、例えば立坑りを深く掘り、この立坑りから直
接に第２シールド掘進機２を両筒１シールド掘進機１間
に挿入するようにしてもよい。この場合、第２シールド
掘進機２のシールド本体５の取外し側部１３ａ、１５ａ
は不要である。In addition, in the above embodiment, by forming the escalator tunnel C at the front and rear of the station tunnel B,
The second shield tunneling machine 2 was guided between the two cylinders and one shield tunneling machine 1, but for example, a deep shaft was dug and the second shield tunneling machine 2 was directly inserted between the two cylinders and one shield tunneling machine 1 from this shaft. You may also do so. In this case, the removal side parts 13a, 15a of the shield body 5 of the second shield excavator 2
is not necessary.
発明の効果
以上のように、本発明のトンネル掘削方法およびシール
ド掘進機によれば、地下鉄の駅用！・ンネルと両側の路
線用トンネルとを同時に掘削することができ、したがっ
て短時間で駅部を構築でき、また従来のような特別な補
助工法を使用しなくても済むとともに、大深度でも安全
に掘削することができる。Effects of the Invention As described above, the tunnel excavation method and shield tunneling machine of the present invention can be used for subway stations!・The tunnel and route tunnels on both sides can be excavated at the same time, making it possible to construct the station section in a short time, eliminating the need for special auxiliary construction methods as in the past, and ensuring safety even at great depths. Can be excavated.
第１図〜第７図は本発明の一実施例を示すもので、第１
図はシールド掘進機の全体斜視図、第２図は駅部トンネ
ルの斜視図、第３図は同断面図、第４図は第１または第
２シールド掘進機の縦断面図、第５図は第１および第２
シールド掘進機の平面図、第６図は第５図の１−１断面
図、第７図は第１シールド掘進機の分解斜視図、第８図
〜第１３図は他の実施例を示すもので、第８図は第１シ
ールド掘進機の縦断面図、第９図は第１および第２シー
ルド掘進機の平面図、第１０図は第９図の■−■断面図
、第１１図〜第１３図は増設用ブロックの斜視図、第１
４図〜第１６図は従来工法を説明する断面図である。
■・・・第１シールド掘進機、２・・・第２シールド掘
進機、３・・・連結ブロック、４，５・・・シールド本
体、１．０ 、１１ ・・・フード部、１Ｏａ−側部、
１２．１３−・・ガーダ部、１２ａ 、 １３ａ−側部
、１４．１５−・・テール部、１４ａ。
１５ａ・・・側部６
代理人 森 本 義 弘
第３図
Ｂ
第４図
１ビ２
第６図
第６図
第７図
第８図
第９図
乍
＼
第１Ｉ図
第１２図
４１３図
第１４図
第１５図
？２
第１６図Figures 1 to 7 show one embodiment of the present invention.
The figure is an overall perspective view of the shield tunneling machine, Figure 2 is a perspective view of the station tunnel, Figure 3 is a sectional view of the same, Figure 4 is a longitudinal sectional view of the first or second shield tunneling machine, and Figure 5 is a vertical sectional view of the first or second shield tunneling machine. 1st and 2nd
A plan view of the shield tunneling machine, FIG. 6 is a 1-1 sectional view of FIG. 5, FIG. 7 is an exploded perspective view of the first shield tunneling machine, and FIGS. 8 to 13 show other embodiments. FIG. 8 is a longitudinal sectional view of the first shield tunneling machine, FIG. 9 is a plan view of the first and second shield tunneling machines, FIG. 10 is a sectional view taken along the line ■-■ of FIG. Figure 13 is a perspective view of the expansion block,
4 to 16 are cross-sectional views illustrating the conventional construction method. ■...First shield excavator, 2...Second shield excavator, 3...Connection block, 4, 5...Shield body, 1.0, 11...Hood part, 1Oa- side Department,
12.13--Girder part, 12a, 13a-Side part, 14.15--Tail part, 14a. 15a...Side part 6 Agent Yoshihiro MorimotoFigure 3B Figure 41B2 Figure 6Figure 6Figure 7Figure 8Figure 9＼Figure 1IFigure 12Figure 413Figure 14 Figure 15? 2 Figure 16
Claims (1)
の第１シールド掘進機間に、かつ駅部手前で第２のシー
ルド掘進機を連結配置して、駅用トンネルと路線用トン
ネルとを同時に掘削することを特徴とするトンネル掘削
方法。 ２、シールド本体の左右いずれかの側部が取外し可能に
構成された２台の第１シールド掘進機と、これら第１シ
ールド掘進機の取外し側部間に配置されるとともにシー
ルド本体の両側部が解放された第２シールド掘進機と、
上記各第１シールド掘進機の取外し側部と第２シールド
掘進機の各解放側部とを連結する連結部材とから構成し
たことを特徴とする請求項１に記載のトンネル掘削方法
に使用するシールド掘進機。[Claims] A second shield excavator is connected between two first shield excavators that excavate one or two tunnels for subway lines in parallel, and in front of the station. A tunnel excavation method characterized by simultaneously excavating a tunnel and a route tunnel. 2. Two first shield excavators configured such that either the left or right sides of the shield bodies can be removed; The released second shield excavator,
The shield used in the tunnel excavation method according to claim 1, further comprising a connecting member that connects the detachable side portions of the first shield excavators and the release side portions of the second shield excavators. digging machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30628488A JPH0694789B2 (en) | 1988-12-03 | 1988-12-03 | Tunnel excavation method and shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30628488A JPH0694789B2 (en) | 1988-12-03 | 1988-12-03 | Tunnel excavation method and shield machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02153196A true JPH02153196A (en) | 1990-06-12 |
| JPH0694789B2 JPH0694789B2 (en) | 1994-11-24 |
Family
ID=17955244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30628488A Expired - Fee Related JPH0694789B2 (en) | 1988-12-03 | 1988-12-03 | Tunnel excavation method and shield machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0694789B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0347397A (en) * | 1989-07-13 | 1991-02-28 | Taisei Corp | Shield excavation method |
| JPH0347398A (en) * | 1989-07-13 | 1991-02-28 | Taisei Corp | Shield excavation method |
| JPH04179796A (en) * | 1990-11-14 | 1992-06-26 | Teito Kousokudo Kotsu Eidan | Shield tunnel excavation method of underground railroad |
| JPH04179795A (en) * | 1990-11-14 | 1992-06-26 | Teito Kousokudo Kotsu Eidan | Shield excavator |
| CN112253140A (en) * | 2020-11-06 | 2021-01-22 | 中铁四院集团西南勘察设计有限公司 | Rail transit structure and construction method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985018A (en) * | 2019-12-26 | 2020-04-10 | 中铁工程装备集团有限公司 | Three-circle shield main machine and shield machine for underground excavation of subway station and construction method |
-
1988
- 1988-12-03 JP JP30628488A patent/JPH0694789B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0347397A (en) * | 1989-07-13 | 1991-02-28 | Taisei Corp | Shield excavation method |
| JPH0347398A (en) * | 1989-07-13 | 1991-02-28 | Taisei Corp | Shield excavation method |
| JPH04179796A (en) * | 1990-11-14 | 1992-06-26 | Teito Kousokudo Kotsu Eidan | Shield tunnel excavation method of underground railroad |
| JPH04179795A (en) * | 1990-11-14 | 1992-06-26 | Teito Kousokudo Kotsu Eidan | Shield excavator |
| CN112253140A (en) * | 2020-11-06 | 2021-01-22 | 中铁四院集团西南勘察设计有限公司 | Rail transit structure and construction method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0694789B2 (en) | 1994-11-24 |
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