JP2809372B2 - Underground joining shield machine - Google Patents
Underground joining shield machineInfo
- Publication number
- JP2809372B2 JP2809372B2 JP13808693A JP13808693A JP2809372B2 JP 2809372 B2 JP2809372 B2 JP 2809372B2 JP 13808693 A JP13808693 A JP 13808693A JP 13808693 A JP13808693 A JP 13808693A JP 2809372 B2 JP2809372 B2 JP 2809372B2
- Authority
- JP
- Japan
- Prior art keywords
- shield
- cutter
- main body
- hood
- shield machine
- 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
- Excavating Of Shafts Or Tunnels (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、２台のシールド掘進機
を互いに反対方向から掘進させて連続したトンネルを掘
削する地中接合用のシールド掘進機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shield excavator for underground joining for excavating a continuous tunnel by excavating two shield excavators from opposite directions.
【０００２】[0002]
【従来の技術】地上から深い場所にトンネルを形成する
場合、２台のシールド掘進機を用い、一方のシールド掘
進機で一方側から地山を掘進すると共に、他方のシール
ド掘進機で反対側から地山を掘進し、２台のシールド掘
進機のカッタを対向させて停止させる。そして、カッタ
等の掘削機を取外した後、別に設けた立坑もしくはシー
ルド掘進機内から連結部のボーリングを行ない、凍結管
もしくは固化剤注入管を取付けて地盤改良を行なう。そ
の後、連結部の掘削を行ない、２台のシールド掘進機を
地中で接合して掘削されたトンネルを連結し、連続した
トンネルとしている。2. Description of the Related Art When forming a tunnel deep from the ground, two shield excavators are used, and one shield excavator excavates the ground from one side, and the other shield excavator starts from the other side. Excavate the ground and stop the cutters of the two shield excavators facing each other. Then, after removing the excavator such as a cutter, the connecting portion is drilled from a shaft or shield excavator separately provided, and a freezing pipe or a solidifying agent injection pipe is attached to perform soil improvement. After that, the connecting portion is excavated, and the two excavated tunnels are joined underground to connect the excavated tunnels to form a continuous tunnel.
【０００３】[0003]
【発明が解決しようとする課題】２台のシールド掘進機
を地中で接合して連続したトンネルを形成する場合、接
合部に立坑を設ける等して凍結管や固化剤注入管を取付
けて地盤改良を行なっている。このため、地中での接合
作業は大規模な土木作業となり、多大な労力と時間を必
要とし、また危険を伴なう作業となっていた。When a continuous tunnel is formed by joining two shield excavators in the ground to form a continuous tunnel, a freezing tube or a solidifying agent injection tube is attached to the joint to form a ground. Improvements have been made. For this reason, the joining work underground is a large-scale civil engineering work, requiring a great deal of labor and time, and is a dangerous work.
【０００４】また、２台のシールド掘進機に接合用装置
を設け、接合用装置を介してシールド掘進機を接合させ
るものもあるが、この場合、特別な接合用装置を備えた
シールド掘進機が２台必要となりコスト高になってしま
う。しかも、シールド掘進機が接合位置に到達した後
に、連結部の地盤改良を行なうためのボーリング作業等
が必要で、大規模な土木作業を避けることはできない。Further, there is a type in which a joining device is provided on two shield excavators and the shield excavating device is joined via the joining device. In this case, a shield excavating machine equipped with a special joining device is used. Two units are required and the cost increases. Moreover, after the shield machine reaches the joining position, a boring operation or the like for improving the ground of the connecting portion is required, and a large-scale civil engineering work cannot be avoided.
【０００５】[0005]
【課題を解決するための手段】上記課題を解決するため
の本発明の構成は、２台のシールド掘進機のカッタを突
き合わせて連続したトンネルを掘削する際に用いられる
地中接合用のシールド掘進機であって、一方のシールド
掘進機は、カッタを本体の前面側に出没自在とすると共
に径方向に伸縮自在とし、前記本体の前面外周にフード
部を突設してなり、他方のシールド掘進機は、カッタを
含む本体前部の外周が前記フード部に嵌合自在となり、
前記フード部に凍結工法用の凍結管及び固化剤注入用の
注入管を設けたことを特徴とする。According to the present invention, there is provided a shield excavator for underground joining used when excavating a continuous tunnel by abutting cutters of two shield excavators. In one shield excavator, the cutter is made to be able to protrude and retract in the front side of the main body and is also expandable and contractible in the radial direction, and a hood portion is provided on the outer periphery of the front surface of the main body, and the other shield excavation machine is provided. In the machine, the outer periphery of the front part of the main body including the cutter can be freely fitted to the hood part,
The hood is provided with a freezing tube for a freezing method and an injection tube for injecting a solidifying agent.
【０００６】[0006]
【作用】２台のシールド掘進機を互いに反対から掘進さ
せ、カッタを対向させて停止させる。一方のシールド掘
進機のカッタを径方向に縮めると共にチャンバ内に没動
させ、フード部に他方のシールド掘進機の本体前部を嵌
合し、２台のシールド掘進機を地中で接合する。フード
部の凍結管を用いて凍結を実施すると共に注入管から、
固化剤を注入し、連結部の地盤改良を行なう。The two shield excavators are dug from opposite sides, and the cutters are stopped facing each other. The cutter of one shield machine is shrunk in the radial direction and retracted into the chamber, the front of the body of the other shield machine is fitted to the hood, and the two shield machines are joined underground. Perform freezing using the freezing tube in the hood and from the injection tube,
Inject the solidifying agent to improve the ground at the connection.
【０００７】[0007]
【実施例】図１には本発明の一実施例に係る地中接合用
シールド掘進機の側面、図２には図１中のII−II線矢
視、図３には２台のシールド掘進機を接合した状態の側
面、図４には図３中の矢印IV部の拡大状態を示してあ
る。1 is a side view of a shield excavator for underground connection according to an embodiment of the present invention, FIG. 2 is a view taken along the line II-II in FIG. 1, and FIG. FIG. 4 shows an enlarged side view of an arrow IV in FIG.
【０００８】一方（図１，図３中右側）のシールド掘進
機１の本体には開口部３が形成され、本体２にはカッタ
駆動装置４が設けられている。カッタ駆動装置４はスラ
イドジャッキ５により本体２の軸方向（図１中矢印で示
す）に移動自在に支持され、カッタ駆動装置４にはカッ
タとしてのカッタヘッド６が設けられている。カッタ駆
動装置４が往復移動することで、カッタヘッド６は開口
部３から出没動する。カッタヘッド６には径方向に伸長
自在なカッタとしてのカッタスポーク７が設けられ、カ
ッタスポーク７はジャッキ８により伸縮する。カッタヘ
ッド６の前面及びカッタスポーク７の前面にはカッタビ
ット９が取付けられ、カッタ駆動装置４の駆動によりカ
ッタヘッド６を回転させることで地山の切削を行なう。
本体２の前面外周にはフード部１０が突設され、フード
部１０には、図４に示すように、凍結工法用の凍結管１
１及びフード部１０の内径側に注入口１２ａが形成され
た固化剤注入用の注入管１２が設けられている。尚、図
中１３は、セグメントピース１４を押してシールド掘進
機１を掘進させるジャッキである。An opening 3 is formed in the main body of one of the shield machines 1 (right side in FIGS. 1 and 3), and a cutter driving device 4 is provided in the main body 2. The cutter driving device 4 is supported by a slide jack 5 so as to be movable in the axial direction of the main body 2 (indicated by an arrow in FIG. 1), and the cutter driving device 4 is provided with a cutter head 6 as a cutter. As the cutter driving device 4 reciprocates, the cutter head 6 moves out of the opening 3 and moves. A cutter head 6 is provided with a cutter spoke 7 as a cutter that can be extended in the radial direction, and the cutter spoke 7 is expanded and contracted by a jack 8. A cutter bit 9 is attached to the front surface of the cutter head 6 and the front surface of the cutter spoke 7, and the cutter head 6 is rotated by driving the cutter driving device 4 to cut the ground.
A hood portion 10 is protruded from the outer periphery of the front surface of the main body 2. As shown in FIG.
An injection pipe 12 for injecting a solidifying agent, having an injection port 12a formed on the inner diameter side of the hood portion 10 is provided. In addition, 13 in the figure is a jack for pushing the segment piece 14 to make the shield machine 1 excavate.
【０００９】他方（図１，図３中左側）のシールド掘進
機２１の本体２２には開口部２３が形成され、本体２２
にはカッタ駆動装置２４が設けられている。カッタ駆動
装置２４にはカッタとしてのカッタヘッド２５が設けら
れ、カッタヘッド２５の前面にはカッタビット２６が取
付けられている。カッタヘッド２５の外径は本体２２の
外径と略同寸法となり、カッタ駆動装置２４の駆動によ
りカッタヘッド２５を回転させることで本体２２と略同
径の穴の切削を行なう。本体２２及びカッタヘッド２５
の外径寸法は、シールド掘進機１のフード部１０の内径
寸法より若干小さく設定され、カッタヘッド２５を含む
本体２２の前部がフード部１０に嵌合自在になってい
る。尚、図中２７は、セグメントピース２８を押してシ
ールド掘進機２１を推進させるジャッキである。An opening 23 is formed in the main body 22 of the shield machine 21 on the other side (left side in FIGS. 1 and 3).
Is provided with a cutter driving device 24. The cutter driving device 24 is provided with a cutter head 25 as a cutter, and a cutter bit 26 is attached to a front surface of the cutter head 25. The outer diameter of the cutter head 25 is substantially the same as the outer diameter of the main body 22, and the cutter head 25 is rotated by driving the cutter driving device 24 to cut a hole having the same diameter as the main body 22. Main body 22 and cutter head 25
Is set slightly smaller than the inner diameter of the hood section 10 of the shield machine 1 so that the front portion of the main body 22 including the cutter head 25 can be fitted to the hood section 10. In the figure, reference numeral 27 denotes a jack for pushing the segment piece 28 to propel the shield machine 21.
【００１０】上述した地中接合用シールド掘進機の作用
を説明する。The operation of the above described underground shield shield machine will be described.
【００１１】シールド掘進機１のカッタヘッド６を開口
部３から突出させると共にカッタスポーク７を伸長さ
せ、カッタ駆動装置４の駆動によってカッタヘッド６を
回転させ、一方側から掘削を行なう。シールド掘進機２
１のカッタ駆動装置２４の駆動によりカッタヘッド２５
を回転させ、反対側から掘削を行なう。The cutter head 6 of the shield machine 1 is protruded from the opening 3 and the cutter spoke 7 is extended, and the cutter head 6 is rotated by the drive of the cutter driving device 4 to perform excavation from one side. Shield machine 2
The cutter head 25 is driven by the first cutter driving device 24.
And excavate from the opposite side.
【００１２】シールド掘進機１，２１での掘進により、
カッタヘッド６，２５が対向した状態でシールド掘進機
１，２１を停止させる。シールド掘進機１のカッタスポ
ーク７を縮めると共に、カッタ駆動装置４を移動させて
カッタヘッド６を開口部３から本体２内に没動させる。
ジャッキ１３，２７によってシールド掘進機１，２１を
更に接近させ、フード部１０にカッタヘッド２５を含む
本体２２の前部を嵌合させる（図３，図４の状態）。By excavating with the shield excavators 1 and 21,
The shield machines 1 and 21 are stopped with the cutter heads 6 and 25 facing each other. The cutter spoke 7 of the shield machine 1 is contracted, and the cutter driving device 4 is moved to move the cutter head 6 from the opening 3 into the main body 2.
The shield excavators 1 and 21 are further approached by the jacks 13 and 27, and the front portion of the main body 22 including the cutter head 25 is fitted to the hood portion 10 (the state of FIGS. 3 and 4).
【００１３】フード部１０と本体２２を嵌合した後、凍
結管１１を用いて接合部の凍結を実施し、更に、注入管
１２から固化剤を本体２内に注入して接合部の止水を行
なう。After the hood 10 and the main body 22 are fitted together, the joint is frozen using the freezing tube 11, and a solidifying agent is injected into the main body 2 from the injection pipe 12 to stop water from the joint. Perform
【００１４】接合部の地盤改良の後、カッタヘッド６，
２５等の解体を行ない、トンネルの接合作業を行なって
連続したトンネルを形成する。After the ground improvement at the joint, the cutter head 6,
25 and the like are dismantled, and a tunnel joining operation is performed to form a continuous tunnel.
【００１５】従って、一方側のシールド掘進機１に出没
自在且つ伸縮自在なカッタヘッド６及びカッタスポーク
７を設けると共にフード部１０を設けたことにより、他
方側のシールド掘進機２１に接合のための装置を不要に
して２台のシールド掘進機１，２１の接合作業が行なえ
る。また、フード部に凍結管１１及び注入管１２を設け
たことにより、ボーリング作業や配管設置等の大規模な
作業を実施することなく連結部の凍結及び止水が行なえ
る。Therefore, by providing the cutter head 6 and the cutter spoke 7 which are retractable and extendable on the shield excavator 1 on one side and the hood portion 10, the shield excavator 1 on the other side is joined to the shield excavator 21 on the other side. The joining work of the two shield excavators 1 and 21 can be performed without using any equipment. Further, since the freezing pipe 11 and the injection pipe 12 are provided in the hood, freezing and water stopping of the connecting portion can be performed without performing a large-scale operation such as a boring operation and a pipe installation.
【００１６】[0016]
【発明の効果】本発明の地中接合用シールド掘進機は、
一方側のシールド掘進機に、出没自在且つ伸縮自在なカ
ッタを設けると共にフード部を設け、フード部に他方側
のシールド掘進機を嵌合自在としたことにより、他方側
のシールド掘進機に接合のための装置を不要にして２台
のシールド掘進機の接合作業が行なえる。また、フード
部に凍結管及び注入管を設けたことにより、大規模な土
木作業を実施することなく連結部の地盤改良が行なえ
る。この結果、地中でのトンネルの接合作業を安全且つ
容易に行なうことができる。According to the shield excavator for underground joining of the present invention,
The shield excavator on one side is provided with a retractable and retractable cutter and a hood, and the shield excavator on the other side can be freely fitted to the hood, so that it can be joined to the shield excavator on the other side. And the joining work of the two shield excavators can be performed without the need for any additional equipment. In addition, the provision of the freezing tube and the injection tube in the hood allows the ground of the connecting portion to be improved without performing large-scale civil engineering work. As a result, the underground tunnel joining operation can be performed safely and easily.
【図１】本発明の一実施例に係る地中接合用シールド掘
進機の側面図。FIG. 1 is a side view of a shield machine for underground connection according to an embodiment of the present invention.
【図２】図１中のII−II線矢視図。FIG. 2 is a view taken along the line II-II in FIG.
【図３】２台のシールド掘進機を接合した状態の側面
図。FIG. 3 is a side view of a state where two shield excavators are joined.
【図４】図３中の矢印IV部の拡大図。FIG. 4 is an enlarged view of an arrow IV part in FIG. 3;
１，２１ シールド掘進機 ２，２２ 本体 ３，２３ 開口部 ４，２４ カッタ駆動装置 ５ スライドジャッキ ６，２５ カッタヘッド ７ カッタスポーク ９，２６ カッタビット １０ フード部 １１ 凍結管 １２ 注入管 1,21 shield machine 2,22 main body 3,23 opening 4,24 cutter driving device 5, slide jack 6,25 cutter head 7, cutter spoke 9,26 cutter bit 10 hood portion 11, freezing tube 12, injection tube
───────────────────────────────────────────────────── フロントページの続き (72)発明者 井上 年史 兵庫県神戸市兵庫区和田崎町一丁目１番 １号 三菱重工業株式会社 神戸造船所 内 (72)発明者 金子 ▲迪▼弌 東京都新宿区西新宿一丁目25番１号 大 成建設株式会社内 (72)発明者 金子 研一 東京都新宿区西新宿一丁目25番１号 大 成建設株式会社内 (72)発明者 上原 俊明 愛知県知多市北浜町11番の１ 石川島播 磨重工業株式会社内 (72)発明者 伊藤 広幸 愛知県知多市北浜町11番の１ 石川島播 磨重工業株式会社内 (56)参考文献 特開 平６−73976（ＪＰ，Ａ) 特開 昭63−47499（ＪＰ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) E21D 9/06 301──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Toshifumi Inoue 1-1-1, Wadazakicho, Hyogo-ku, Kobe City, Hyogo Prefecture Inside Mitsubishi Heavy Industries, Ltd., Kobe Shipyard (72) Inventor Kaneko, Shinjuku, Tokyo 1-25-1, Nishishinjuku-ku, Taisei Construction Co., Ltd. (72) Inventor Kenichi Kaneko 1-25-1, Nishishinjuku, Shinjuku-ku, Tokyo Taisei Construction Co., Ltd. (72) Inventor Toshiaki Uehara Chita, Aichi 11-1 Kitahama-cho, Ishikawajima-Mari Heavy Industry Co., Ltd. (72) Inventor Hiroyuki Ito 11-1 Kitahama-cho, Chita-shi, Aichi Prefecture Ishikawajima-Mari Heavy Industry Co., Ltd. (56) References JP-A-6-73976 ( JP, A) JP-A-63-47499 (JP, A) (58) Fields investigated (Int. Cl. 6 , DB name) E21D 9/06 301
Claims (1)
わせて連続したトンネルを掘削する際に用いられる地中
接合用のシールド掘進機であって、一方のシールド掘進
機は、カッタを本体の前面側に出没自在とすると共に径
方向に伸縮自在とし、前記本体の前面外周にフード部を
突設してなり、他方のシールド掘進機は、カッタを含む
本体前部の外周が前記フード部に嵌合自在となり、前記
フード部に凍結工法用の凍結管及び固化剤注入用の注入
管を設けたことを特徴とする地中接合用シールド掘進
機。1. A shield excavator for underground joining used when a continuous tunnel is excavated by abutting cutters of two shield excavators, wherein one shield excavator has a cutter attached to a front surface of a main body. The hood part is provided on the outer periphery of the front surface of the main body, and the outer periphery of the front part of the main body including the cutter fits into the hood part. A shield excavator for underground joining, wherein a freezing pipe for a freezing method and an injection pipe for injecting a solidifying agent are provided in the hood portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13808693A JP2809372B2 (en) | 1993-06-10 | 1993-06-10 | Underground joining shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13808693A JP2809372B2 (en) | 1993-06-10 | 1993-06-10 | Underground joining shield machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06346686A JPH06346686A (en) | 1994-12-20 |
| JP2809372B2 true JP2809372B2 (en) | 1998-10-08 |
Family
ID=15213632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13808693A Expired - Fee Related JP2809372B2 (en) | 1993-06-10 | 1993-06-10 | Underground joining shield machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2809372B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321646B (en) * | 2013-07-01 | 2016-04-13 | 上海隧道工程有限公司 | Ground suction/discharge type shield excavation machine |
-
1993
- 1993-06-10 JP JP13808693A patent/JP2809372B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06346686A (en) | 1994-12-20 |
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