Deprecated: The each() function is deprecated. This message will be suppressed on further calls in /home/zhenxiangba/zhenxiangba.com/public_html/phproxy-improved-master/index.php on line 456
JP3595465B2 - Shield machine, tunnel construction method and tunnel - Google Patents
[go: Go Back, main page]

JP3595465B2 - Shield machine, tunnel construction method and tunnel - Google Patents

Shield machine, tunnel construction method and tunnel Download PDF

Info

Publication number
JP3595465B2
JP3595465B2 JP18328099A JP18328099A JP3595465B2 JP 3595465 B2 JP3595465 B2 JP 3595465B2 JP 18328099 A JP18328099 A JP 18328099A JP 18328099 A JP18328099 A JP 18328099A JP 3595465 B2 JP3595465 B2 JP 3595465B2
Authority
JP
Japan
Prior art keywords
tunnel
shield machine
mortar
shield
water
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
Application number
JP18328099A
Other languages
Japanese (ja)
Other versions
JP2001011875A (en
Inventor
康夫 森光
康之 早川
裕 石丸
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.)
Kajima Corp
Original Assignee
Kajima Corp
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
Application filed by Kajima Corp filed Critical Kajima Corp
Priority to JP18328099A priority Critical patent/JP3595465B2/en
Publication of JP2001011875A publication Critical patent/JP2001011875A/en
Application granted granted Critical
Publication of JP3595465B2 publication Critical patent/JP3595465B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)

Description

【0001】
【発明の属する技術分野】
本発明はシールド機、トンネルの構築方法およびトンネルに関するものである。
【0002】
【従来の技術】
従来、水底下のシールドトンネルの施工において、道路トンネルならびに、鉄道トンネル等で、トンネルの勾配が制限などにより、シールドトンネルの上面の一部が水底より露出する場合、トンネル切羽や水底面の安定を保持するため、水底を埋める方法やトンネル自体を全体的に深くする方法等により対処してきた。
【0003】
【発明が解決しようとする課題】
ところで、この場合、水底を埋める工程が余分に必要となったり、あえて深い所を掘進しなければならないという問題点がある。
【0004】
本発明はこのような問題を鑑みてなされたものでその目的とするところは、水底に一部露出するシールドトンネルにおいて、シールドの掘削と同時にシールドトンネルの安定を保持できるシールド機、トンネルの構築方法およびトンネルを提供することにある。
【0005】
【課題を解決するための手段】
前述した目的を達成するための第1の発明は、水底に一部露出するシールドトンネルの構築方法であって、外部に対して注入材を放出する注入部を上部に有するシールド機を用い、前記シールド機は、水底より一部露出した状態で地盤を掘削しつつ、セグメントを構築すると同時に、前記セグメントの露出部に前記注入部より水中不分離モルタルに急結材を混入した注入材を被せつつ前進させることを特徴とするトンネルの構築方法である。
【0006】
第2の発明は、第1の発明によるトンネルの構築方法によって構築されたトンネルである。
【0007】
【発明の実施の形態】
以下、図面に基づいて本発明の実施の形態を詳細に説明する。図1は、シールド機1の一部断面を含む側面図であり、図2は、図1のシールド機1のA方向矢視図である。
図1、図2に示すように、シールド機1は、上部に注入部7を備えている。注入部7は、内部にモルタルをセグメント上部に被せるための注入管9、注入管9の内部を清掃するための管清掃ジャッキ11を具備している。
【0008】
シールド機1の内部には、注入管9へモルタルを供給する管10が設けられている。管10に注入するモルタルは、水中不分離モルタルとし、セグメント上面を急速にカバーするため、水ガラス等の急結材を配管途中で混入する。
尚、3は、シールドジャッキを、5は、リングガータを、13は、テールシールを示す。
【0009】
図3は、ベッセル21の側面図であり、図4は、ベッセル21の正面図である。図3、図4に示すように、ベッセル21は、トンネル内を走行し、シールド機1にモルタルを運搬する。
ベッセル21は、モルタルを貯蔵するためのモルタル貯蔵部27とモルタルを供給するためのモルタルポンプ25を具備し、車輪23でトンネル内を走行する。
【0010】
そして、シールド機1内で、モルタルポンプ25を用いて、管10にモルタルを送り込む。
【0011】
次に、シールド機1により、トンネルを構築する手順について説明する。
図5は、シールド機1によって構築されたトンネルの断面図であり、図6は、図5のX−X断面図である。
図5、図6に示すように、シールド機1は、水底39より一部露出した状態で、地盤を掘削しつつ、セグメント33を構築すると同時に、シールド機1の上部に設けられた注入部7の注入管9より、水中不分離モルタル及び急結材35をセグメント33の露出部に被せつつ前進する。31は、水面、37は、裏込材を示す。 水中不分離モルタル及び急結材35は、注入部7から外部に放出され、セグメント33上で急速に固化する。
【0012】
以上のように、シールド機1による、セグメント33の構築と同時に水中不分離モルタル及び急結材35をセグメント33の露出部に被せることにより、覆工たるセグメント33を保護することが出来、水底39面より一部露出したトンネルを構築することができる。
【0013】
尚、本発明は、前述した実施の形態に限られるものではない。例えば、注入管9の本数は、図2に示されるもの以外でもよいし、注入部7をもう少し大きくし、トンネルの横部あたりまでモルタルを被せるようにしてもよい。
また、急結材としては、水ガラス以外の材料を用いてもよい。
【0014】
【発明の効果】
以上、詳細に説明したように本発明によれば、水底に一部露出するシールドトンネルにおいて、シールドの掘削と同時にシールドトンネルの安定を保持できるシールド機、トンネルの構築方法およびトンネルを提供することができる。
【図面の簡単な説明】
【図1】シールド機1の一部断面を含む側面図
【図2】図1のシールド機1のA方向矢視図
【図3】ベッセル21の側面図
【図4】ベッセル21の正面図
【図5】シールド機1によるトンネルの断面図
【図6】図5のX−X断面図
【符号の説明】
1………シールド機
7………注入部
9………注入管
11………管清掃ジャッキ
33………セグメント
35………水中不分離モルタル+急結材
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a shield machine, a tunnel construction method, and a tunnel.
[0002]
[Prior art]
Conventionally, when constructing a shield tunnel under the water bottom, if the slope of the tunnel is limited, such as in a road tunnel or a railway tunnel, the upper surface of the shield tunnel is partially exposed from the water bottom, the stability of the tunnel face and the water bottom will be reduced. In order to maintain the water level, a method of filling the bottom of the water or a method of deepening the entire tunnel itself has been used.
[0003]
[Problems to be solved by the invention]
By the way, in this case, there is a problem that an extra step of filling the water bottom is required or that a deep place must be dug.
[0004]
The present invention has been made in view of such a problem, and an object of the present invention is to provide a shield machine and a tunnel construction method capable of maintaining the stability of a shield tunnel simultaneously with excavation of a shield in a shield tunnel partially exposed to the water bottom. And to provide tunnels.
[0005]
[Means for Solving the Problems]
A first invention for achieving the above-mentioned object is a method of constructing a shield tunnel partially exposed at the bottom of a water, using a shield machine having an injection portion for discharging an injection material to the outside at an upper portion, The shield machine excavates the ground in a state where it is partially exposed from the bottom of the water, and at the same time as constructing the segment, while covering the exposed portion of the segment with the injected material mixed with the quick-setting material in the underwater inseparable mortar from the injected portion. This is a tunnel construction method characterized by moving forward.
[0006]
A second invention is a tunnel constructed by the tunnel construction method according to the first invention.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a side view including a partial cross section of the shield machine 1, and FIG. 2 is a view of the shield machine 1 in FIG.
As shown in FIGS. 1 and 2, the shield machine 1 includes an injection unit 7 at an upper part. The injection section 7 includes an injection pipe 9 for covering the upper portion of the segment with mortar, and a pipe cleaning jack 11 for cleaning the inside of the injection pipe 9.
[0008]
Inside the shield machine 1, a pipe 10 for supplying mortar to the injection pipe 9 is provided. The mortar to be injected into the pipe 10 is a non-separable mortar in water, and a quick-setting material such as water glass is mixed in the middle of the pipe to quickly cover the upper surface of the segment.
3 indicates a shield jack, 5 indicates a ring gutter, and 13 indicates a tail seal.
[0009]
FIG. 3 is a side view of the vessel 21, and FIG. 4 is a front view of the vessel 21. As shown in FIGS. 3 and 4, the vessel 21 travels in a tunnel and transports mortar to the shield machine 1.
The vessel 21 includes a mortar storage unit 27 for storing mortar and a mortar pump 25 for supplying mortar, and runs in a tunnel with wheels 23.
[0010]
Then, the mortar is fed into the pipe 10 using the mortar pump 25 in the shield machine 1.
[0011]
Next, a procedure for constructing a tunnel by the shield machine 1 will be described.
FIG. 5 is a sectional view of the tunnel constructed by the shield machine 1, and FIG. 6 is a sectional view taken along line XX of FIG.
As shown in FIGS. 5 and 6, the shield machine 1 constructs the segment 33 while excavating the ground in a state where the shield 33 is partially exposed from the water bottom 39, and at the same time, the injection unit 7 provided on the upper part of the shield machine 1. From the injection pipe 9, the mortar and the quick-setting material 35 are moved forward while covering the exposed portion of the segment 33. 31 indicates a water surface, and 37 indicates a backing material. The in-water non-separable mortar and quick-setting material 35 are discharged to the outside from the injection part 7 and rapidly solidify on the segments 33.
[0012]
As described above, the underwater non-separable mortar and the quick-setting material 35 are put on the exposed portion of the segment 33 at the same time as the construction of the segment 33 by the shield machine 1, so that the lining segment 33 can be protected. A tunnel partially exposed from the surface can be constructed.
[0013]
Note that the present invention is not limited to the above-described embodiment. For example, the number of the injection pipes 9 may be other than that shown in FIG. 2, and the injection part 7 may be slightly larger and covered with mortar around the side of the tunnel.
Further, a material other than water glass may be used as the quick setting material.
[0014]
【The invention's effect】
As described above in detail, according to the present invention, it is possible to provide a shield machine, a tunnel construction method, and a tunnel capable of maintaining stability of a shield tunnel at the same time as excavation of a shield in a shield tunnel partially exposed to the water bottom. it can.
[Brief description of the drawings]
1 is a side view including a partial cross section of the shield machine 1. FIG. 2 is a view of the shield machine 1 in FIG. 1 as viewed in the direction of arrow A. FIG. 3 is a side view of the vessel 21. FIG. FIG. 5 is a sectional view of a tunnel by the shield machine 1. FIG. 6 is a sectional view taken along line XX of FIG.
1 Shielding machine 7 Injecting section 9 Injecting pipe 11 Pipe cleaning jack 33 Segment 35 Inseparable mortar in water + quick setting material

Claims (2)

水底に一部露出するシールドトンネルの構築方法であって、A method of constructing a shield tunnel that is partially exposed to the bottom of the water,
外部に対して注入材を放出する注入部を上部に有するシールド機を用い、前記シールド機は、水底より一部露出した状態で地盤を掘削しつつ、セグメントを構築すると同時に、前記セグメントの露出部に前記注入部より水中不分離モルタルに急結材を混入した注入材を被せつつ前進させることを特徴とするトンネルの構築方法。  Using a shield machine having an injection portion at the top for discharging the injection material to the outside, the shield machine excavates the ground in a state where it is partially exposed from the water bottom, at the same time as constructing a segment, and simultaneously exposing the segment The tunnel construction method further comprises a step of moving the mortar into the water-insoluble separable mortar with an injection material mixed with a quick-setting material.
請求項1記載のトンネルの構築方法によって構築されたトンネル。A tunnel constructed by the tunnel construction method according to claim 1.
JP18328099A 1999-06-29 1999-06-29 Shield machine, tunnel construction method and tunnel Expired - Fee Related JP3595465B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18328099A JP3595465B2 (en) 1999-06-29 1999-06-29 Shield machine, tunnel construction method and tunnel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18328099A JP3595465B2 (en) 1999-06-29 1999-06-29 Shield machine, tunnel construction method and tunnel

Publications (2)

Publication Number Publication Date
JP2001011875A JP2001011875A (en) 2001-01-16
JP3595465B2 true JP3595465B2 (en) 2004-12-02

Family

ID=16132900

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18328099A Expired - Fee Related JP3595465B2 (en) 1999-06-29 1999-06-29 Shield machine, tunnel construction method and tunnel

Country Status (1)

Country Link
JP (1) JP3595465B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4531298B2 (en) * 2001-06-26 2010-08-25 ジャパントンネルシステムズ株式会社 Underwater shield shield machine
CN111350515A (en) * 2020-05-09 2020-06-30 徐州工程学院 A shield structure for effectively controlling surface subsidence

Also Published As

Publication number Publication date
JP2001011875A (en) 2001-01-16

Similar Documents

Publication Publication Date Title
JP2003206691A (en) Shield machine arrival construction method
JPH04343995A (en) Middle part covering structure of juxtaposed tunnels
JP3595465B2 (en) Shield machine, tunnel construction method and tunnel
JP4660822B2 (en) Construction method of support structure in branching junction
JPS621356Y2 (en)
JP3098208B2 (en) Simultaneous backfilling device for shield machine
JPH02176093A (en) Vertical shaft for shield construction
JPH0868293A (en) Underground tunnel connection method and segment
JP2001011849A (en) Soil liquefaction prevention structure, its construction method and ground improvement method
JP4037237B2 (en) Underground welding shield machine
JP4211362B2 (en) Connecting method of shield tunneling machine
JP2005220563A (en) Stabilizing method of excavation object earth in shielding construction method
JPH08270392A (en) How to stop water at pipe propulsion wellhead
JPH0213698A (en) Shield work method and shield excavating machine
JPH0216440B2 (en)
JPH0643799B2 (en) Lining sealing method in cast-in-place lining shield method
JP2005083007A (en) Method for laying square pipe
JPS61137999A (en) Back injection of shield construction method
JP6052855B2 (en) Backing material injection method
JPS5927095A (en) Method of shield tunnel construction
JPS6322995A (en) Structure of penetration chamber of underground joining typeshield machine
JPH108886A (en) Method and apparatus for constructing large section tunnel
JPH0431355Y2 (en)
JPH0238698A (en) Sealing device for shield machine
JPH0390797A (en) Joining method of tunnels

Legal Events

Date Code Title Description
A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20040527

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20040608

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20040728

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20040831

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20040903

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees