JP2001040981A - Tunnel water stopping method in master-slave shield tunneling method - Google Patents

Tunnel water stopping method in master-slave shield tunneling method

Info

Publication number
JP2001040981A
JP2001040981A JP11217158A JP21715899A JP2001040981A JP 2001040981 A JP2001040981 A JP 2001040981A JP 11217158 A JP11217158 A JP 11217158A JP 21715899 A JP21715899 A JP 21715899A JP 2001040981 A JP2001040981 A JP 2001040981A
Authority
JP
Japan
Prior art keywords
shield
space
master
air
assembled
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.)
Withdrawn
Application number
JP11217158A
Other languages
Japanese (ja)
Inventor
Koichiro Onoe
宏一郎 尾上
Etsuo Suzuki
悦雄 鈴木
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.)
MITSUI KYODO KENSETSU CONSULTA
MITSUI KYODO KENSETSU CONSULTANT KK
Mitsui Engineering and Shipbuilding Co Ltd
Original Assignee
MITSUI KYODO KENSETSU CONSULTA
MITSUI KYODO KENSETSU CONSULTANT KK
Mitsui Engineering and Shipbuilding Co Ltd
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 MITSUI KYODO KENSETSU CONSULTA, MITSUI KYODO KENSETSU CONSULTANT KK, Mitsui Engineering and Shipbuilding Co Ltd filed Critical MITSUI KYODO KENSETSU CONSULTA
Priority to JP11217158A priority Critical patent/JP2001040981A/en
Publication of JP2001040981A publication Critical patent/JP2001040981A/en
Withdrawn legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

PROBLEM TO BE SOLVED: To reliably stop water at a low cost and to dispense with the removal of a filler when a branch pipe is connected by pressurizing the space surrounded by large and small segments assembled by master and slave shield machines with air after the master and slave shield machines are separated from each other. SOLUTION: After a slave shield machine 2 is separated from a master shield machine 1, the tubular space 5 surrounded by a large-diameter segment assembled by the master shield machine 1 and a small-diameter segment assembled by the slave shield machine 2 is pressurized with air (a). The compressed air (a) is filled from a nozzle 7 fitted to an annular bulkhead 8a for air pressurization. This air pressurization can prevent the sediment and water of the natural ground from intruding into the space 5 in spite of its very simple and easy method. The cost can be sharply reduced as compared with the conventional chemical injection method. A branch pipe can be simply connected by utilizing the space 5. The construction period is shortened, and the cost can be reduced.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、親子シールド工法
において、親機シールドから子機シールドが離脱後、親
機シールドによって組み立てられた大径のセグメント
と、子機シールドによって組み立てられた小径のセグメ
ントによって囲まれた空間に地山の土砂や水が侵入しな
いようにする親子シールド工法におけるトンネル止水方
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 parent-child shield construction method, in which a large-diameter segment assembled by a parent device shield and a small-diameter segment assembled by a child device shield after the child device shield is detached from the parent device shield. The present invention relates to a method for stopping water in a tunnel in a parent-child shield construction method for preventing earth and sand or water in a ground mountain from entering a space surrounded by the tunnel.

【0002】[0002]

【従来の技術】親機シールドから子機シールドが離脱
後、親機シールドによって組み立てられた大径のセグメ
ントと、子機シールドによって組み立てられた小径のセ
グメントによって囲まれた空間の止水は、従来、同空間
の地山側周囲を薬液注入によって固めるか、或いは、上
記空間に裏込材などの充填材を充填することにより行な
われていた。
2. Description of the Related Art After a slave unit shield is detached from a master unit shield, the water stoppage of a space surrounded by a large-diameter segment assembled by the master unit shield and a small-diameter segment assembled by the slave unit shield is conventionally known. This has been done by solidifying the surroundings of the space on the ground side by injecting a chemical solution, or by filling the space with a filler such as a backing material.

【0003】[0003]

【発明が解決しようとする課題】親機シールドから子機
シールドが離脱後、親機シールド及び子機シールドによ
って組み立てられた大小二つのセグメントによって囲ま
れた空間に地山の土砂や水が侵入しないようにする場
合、上記空間の地山側周囲を薬液注入によって固める方
法は、地山の土砂や水が侵入しないようにすることが可
能でも費用が嵩み過ぎるという問題がある。
After the slave unit shield is detached from the master unit shield, earth and sand and water from the ground do not enter the space surrounded by the large and small segments assembled by the master unit shield and the slave unit shield. In this case, the method of solidifying the surrounding area of the space by the injection of a chemical solution has a problem that the cost is too high even though it is possible to prevent earth and sand or water from entering the space.

【0004】一方、上記空間に裏込材などの充填材を注
入する方法は、同空間を利用して枝管を接続させる時
に、同空間に注入した充填材の撤去が大変であるばかり
でなく、充填材撤去のための期間を必要とするほか、そ
の分の費用が嵩むという問題がある。
On the other hand, the method of injecting a filling material such as a backing material into the space is not only difficult when removing the filling material into the space when connecting a branch pipe using the space. In addition, there is a problem that a period for removing the filler is required and the cost is increased accordingly.

【0005】本発明は、かかる従来の問題を解消するた
め、親機シールドから子機シールドが離脱後、親機シー
ルド及び子機シールドによって組み立てられた大小二つ
のセグメントによって囲まれた空間の止水を薬液注入で
固める方法より安価に行なうことができる一方、同空間
を利用して枝管を接続させる時に、同空間に注入した充
填材をハツリ撤去することなく、同空間を容易に、か
つ、直ちに利用できる親子シールド工法における止水方
法を提供することにある。
According to the present invention, in order to solve such a conventional problem, after the slave unit shield is detached from the master unit shield, water is stopped in a space surrounded by two large and small segments assembled by the master unit shield and the slave unit shield. Can be performed at a lower cost than the method of solidifying by filling with a chemical solution, but when connecting branch pipes using the same space, without removing the filler injected into the same space, the same space is easily and, An object of the present invention is to provide a water stoppage method in a parent-child shield method that can be used immediately.

【0006】[0006]

【課題を解決するための手段】上記の課題を達成するた
め、本発明の親子シールド工法におけるトンネル止水方
法は、親子シールド工法において、親機シールドから子
機シールドを離脱させた後、親機シールドによって組み
立てられた大径のセグメントと、子機シールドによって
組み立てられた小径のセグメントによって囲まれた空間
を空気で加圧し、止水することを特徴としている。
In order to achieve the above object, the present invention provides a method for stopping water in a tunnel in a parent-child shield method, which comprises separating a child device shield from a parent device shield in a parent-child shield method. A space surrounded by a large-diameter segment assembled by a shield and a small-diameter segment assembled by a slave unit shield is pressurized with air to stop water.

【0007】このように、親機シールドで組み立てた大
径のセグメントと、子機シールドて組み立てた小径のセ
グメントによって囲まれた空間を空気で加圧し、止水す
ることにより、非常に簡単で、かつ、簡便な方法にも係
わらず、地山の土砂や水の侵入を確実に防ぐことができ
る。
As described above, the space surrounded by the large-diameter segment assembled with the master unit shield and the small-diameter segment assembled with the slave unit shield is pressurized with air to stop water, so that it is very simple. In addition, in spite of the simple method, intrusion of earth and sand or water in the ground can be surely prevented.

【0008】[0008]

【発明の実施の形態】以下、図面を参照しながら本発明
の実施の形態について説明する。
Embodiments of the present invention will be described below with reference to the drawings.

【0009】図1に示すように、親子シールドを用いた
トンネル工法において、親機シールド1から子機シール
ド2が離脱した後、親機シールド1によって組み立てら
れた大径のセグメント3と、子機シールド2によって組
み立てられた小径のセグメント4によって囲まれた筒形
の空間5を空気aで加圧する。
As shown in FIG. 1, in a tunnel construction method using a parent-child shield, after a child device shield 2 is detached from a parent device shield 1, a large-diameter segment 3 assembled by the parent device shield 1 and a child device A cylindrical space 5 surrounded by small-diameter segments 4 assembled by the shield 2 is pressurized with air a.

【0010】この止水方法によれば、上記空間5が空気
aで加圧されているため、上記空間5に地山の土砂や水
が侵入しなくなる。
According to this water stopping method, since the space 5 is pressurized with the air a, earth and sand and water from the ground do not enter the space 5.

【0011】上記空間5を空気aで加圧するには、同空
間5にノズル7から所定の圧力に加圧された加圧空気a
を充填することにより簡単に実施することができる。こ
の例の場合、ノズル7は、子機シールド2の反力を支え
る環状の隔壁8aに取り付けられているが、子機シール
ド2によって組み立てられたセグメント4に取り付けて
も差し支えがない。
To pressurize the space 5 with air a, pressurized air a pressurized to a predetermined pressure from the nozzle 7
Can be easily carried out by filling. In the case of this example, the nozzle 7 is attached to the annular partition wall 8 a that supports the reaction force of the slave unit shield 2, but may be attached to the segment 4 assembled by the slave unit shield 2.

【0012】上記隔壁8aは、親機シールド1によって
組み立てられた大径の隣接する二つのセグメント3,3
間、すなわち、セグメント3a及び3bの間に挟持され
ている環状の内側フランジ9aに取り付けられている。
また、隣接する二つのセグメント3b及び3cの間に挟
持されている環状の内側フランジ9bにも隔壁8bが取
り付けられている。
The bulkhead 8a is composed of two adjacent large-diameter segments 3 and 3 assembled by the main unit shield 1.
It is attached to an annular inner flange 9a sandwiched between the segments, that is, between the segments 3a and 3b.
The partition 8b is also attached to an annular inner flange 9b sandwiched between two adjacent segments 3b and 3c.

【0013】そして、隔壁8a及び8bを補強するため
に、前後する二つの隔壁8a,8b間にリブ10aを放
射方向に取り付けると共に、隔壁8bの後方にリブ10
bを放射方向に取り付けている。
In order to reinforce the partition walls 8a and 8b, a rib 10a is radially mounted between the two preceding and succeeding partition walls 8a and 8b, and the rib 10a is provided behind the partition wall 8b.
b is mounted in the radial direction.

【0014】上記隔壁8aと子機シールド2によって組
み立てられた小径のセグメント4の後端面との間の隙間
は、図示しないシール部材によって完全にシールされて
いる。
The gap between the partition wall 8a and the rear end face of the small diameter segment 4 assembled by the slave unit shield 2 is completely sealed by a sealing member (not shown).

【0015】なお、図中、符号6は地山側周辺、11は
親機シールド1のシールドジャッキ、12は子機シール
ド2のカッターヘッド、13は子機シールド2のシール
ドジャッキを示している。
In the drawing, reference numeral 6 denotes a ground side, a reference numeral 11 denotes a shield jack of the master unit shield 1, a reference numeral 12 denotes a cutter head of the slave unit shield 2, and a reference numeral 13 denotes a shield jack of the slave unit shield 2.

【0016】上記のように、本発明は、親機シールド1
から子機シールド2が離脱した後、親機シールド1によ
って組み立てられた大径のセグメント3と、子機シール
ド2によって組み立てられた小径のセグメント4によっ
て囲まれた筒形の空間5を空気aで加圧し、止水してい
るため、非常に簡単で、かつ、簡便な方法にも係わら
ず、地山の土砂や水の侵入を確実に防ぐことができる。
As described above, the present invention provides the master unit shield 1
After the child device shield 2 is detached from the air conditioner, a cylindrical space 5 surrounded by the large-diameter segment 3 assembled by the parent device shield 1 and the small-diameter segment 4 assembled by the child device shield 2 is filled with air a. Since the water is pressurized and the water is stopped, it is possible to reliably prevent intrusion of earth and sand or water in the ground even though the method is very simple and simple.

【0017】[0017]

【発明の効果】上記のように、本発明は、親機シールド
から子機シールドが離脱後、親機シールドによって組み
立てられた大径のセグメントと、子機シールドによって
組み立てられた小径のセグメントによって囲まれた筒形
の空間を空気で加圧し、止水しているため、非常に簡単
で、かつ、簡便な方法にも係わらず、地山の土砂や水の
侵入を確実に防ぐことができる。このため、従来の地山
側周囲を薬液注入によって固めたり、或いは、裏込材な
どの充填材を充填する方法に比べて大幅に経費の節減を
計ることができる。
As described above, according to the present invention, after the slave unit shield is detached from the master unit shield, it is surrounded by the large-diameter segment assembled by the master unit shield and the small-diameter segment assembled by the slave unit shield. Since the closed cylindrical space is pressurized with air to stop the water, it is possible to reliably prevent intrusion of earth and sand or water in the ground even though it is a very simple and simple method. For this reason, it is possible to greatly reduce the cost as compared with the conventional method of solidifying the surroundings of the ground side by injecting a chemical solution or filling a filler such as a backing material.

【0018】また、本方法によれば、上記空間は、空隙
になっているため、同空間を利用して枝管を接続させる
時に、枝管を簡単に接続させることができる。このた
め、工期の短縮、経費の節減を計ることができる。
Further, according to the present method, since the space is a space, the branch pipe can be easily connected when connecting the branch pipe using the space. For this reason, it is possible to reduce the construction period and the cost.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明に係るトンネル止水方法の説明図であ
る。
FIG. 1 is an explanatory view of a tunnel water stopping method according to the present invention.

【符号の説明】[Explanation of symbols]

1 親機シールド 2 子機シールド 3 親機シールドによって組み立てられたセグメント 4 子機シールドによって組み立てられたセグメント 5 空間 a 空気 DESCRIPTION OF SYMBOLS 1 Master unit shield 2 Slave unit shield 3 Segment assembled by master unit shield 4 Segment assembled by slave unit shield 5 Space a Air

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 親子シールド工法において、親機シール
ドから子機シールドを離脱させた後、親機シールドによ
って組み立てられた大径のセグメントと、子機シールド
によって組み立てられた小径のセグメントによって囲ま
れた空間を空気で加圧し、止水することを特徴とする親
子シールド工法におけるトンネル止水方法。
In a parent-child shield method, after detaching a child unit shield from a parent unit shield, the child unit shield is surrounded by a large-diameter segment assembled by the parent unit shield and a small-diameter segment assembled by the child unit shield. A tunnel water stopping method in the parent-child shield method, wherein the space is pressurized with air and water is stopped.
JP11217158A 1999-07-30 1999-07-30 Tunnel water stopping method in master-slave shield tunneling method Withdrawn JP2001040981A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11217158A JP2001040981A (en) 1999-07-30 1999-07-30 Tunnel water stopping method in master-slave shield tunneling method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11217158A JP2001040981A (en) 1999-07-30 1999-07-30 Tunnel water stopping method in master-slave shield tunneling method

Publications (1)

Publication Number Publication Date
JP2001040981A true JP2001040981A (en) 2001-02-13

Family

ID=16699773

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11217158A Withdrawn JP2001040981A (en) 1999-07-30 1999-07-30 Tunnel water stopping method in master-slave shield tunneling method

Country Status (1)

Country Link
JP (1) JP2001040981A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015083750A (en) * 2013-10-25 2015-04-30 鹿島建設株式会社 Reaction receiving apparatus for shield machine, and shield tunnel construction method
CN105298503A (en) * 2015-09-16 2016-02-03 中铁十局集团第三建设有限公司 Separate launching construction method of shield tunneling machine in narrow space
CN108756954A (en) * 2018-06-08 2018-11-06 中交公局厦门工程有限公司 A kind of shield method of reseptance assisting high hydraulic pressure formation condition using globality steel structure sleeve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015083750A (en) * 2013-10-25 2015-04-30 鹿島建設株式会社 Reaction receiving apparatus for shield machine, and shield tunnel construction method
CN105298503A (en) * 2015-09-16 2016-02-03 中铁十局集团第三建设有限公司 Separate launching construction method of shield tunneling machine in narrow space
CN108756954A (en) * 2018-06-08 2018-11-06 中交公局厦门工程有限公司 A kind of shield method of reseptance assisting high hydraulic pressure formation condition using globality steel structure sleeve

Similar Documents

Publication Publication Date Title
JP2001040981A (en) Tunnel water stopping method in master-slave shield tunneling method
JP2008169648A (en) Ground improvement method
CN101298837A (en) Apparatus for reducing friction resistance between shield machine shield body and tunneling wall
JP4734541B2 (en) Method of recovering shield machine and shield machine using the method
CN202752285U (en) Isobaric aeration sealing connector device for inner wall cleaning of tube material
JPH1122367A (en) Connecting method of tunnel by use of different diameter-shielding excavator
JP2003214085A (en) Mouth forming method on arrival of shield machine and shield machine
CN202580019U (en) Main shaft sealing structure of heading device
CN101629489B (en) Tunnel portal sealing device for shield break-in and break-out simulation test
JPH0387412A (en) Natural ground consolidation process and combined pipes to be used for same process
CN102494136A (en) Seal structure of main shaft of excavating equipment
JP3184456B2 (en) How to receive shield machine into the arrival shaft
JP2636139B2 (en) Wellhead sealing device
JP4890390B2 (en) Entrance seal device
JP2009084860A (en) Injection filling apparatus and injection filling method for solidifier
JPH0633454A (en) Method and device for pulling-out casing pipe for anchor
JP2002194988A (en) Receiving method of tunnel excavator to arrival shaft and facility for it
JPH1054482A (en) Replacing work method for buried pipe
JP3061586B2 (en) Segment with water stop device and method of assembling the same
JPH10102980A (en) Tunnel reaching port sealing device
JPH08128039A (en) Anchor construction method
JP2954307B2 (en) Crack injection equipment
JP2006152680A (en) Joining construction method for shield tunnel and structure of shield tunnel by its construction method
JPS62276197A (en) Method of replacing construction of buried residual pipe
JPH0791184A (en) Tunnel rear surface filling device

Legal Events

Date Code Title Description
A300 Withdrawal of application because of no request for examination

Free format text: JAPANESE INTERMEDIATE CODE: A300

Effective date: 20061003