JPH06240981A - Accessible method in shield machine - Google Patents
Accessible method in shield machineInfo
- Publication number
- JPH06240981A JPH06240981A JP5505293A JP5505293A JPH06240981A JP H06240981 A JPH06240981 A JP H06240981A JP 5505293 A JP5505293 A JP 5505293A JP 5505293 A JP5505293 A JP 5505293A JP H06240981 A JPH06240981 A JP H06240981A
- Authority
- JP
- Japan
- Prior art keywords
- cutter
- reaching
- wall
- inner cylinder
- outer cylinder
- 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
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、到達壁に対するシール
ド掘進機における到達方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for reaching a reaching wall in a shield machine.
【0002】[0002]
【従来の技術】従来、シールド機や推進機の到達方法
は、あらかじめ到達部分に地盤改良を行い、到達部分の
地山の自立を図り、その部分にシールド掘進機を到達さ
せ、到達立坑内に到達坑口を設置し、到達部の土留め部
分を撤去し、到達立坑内に押し込む方法が採られてい
る。2. Description of the Related Art Conventionally, the method of reaching shield machines and propulsion machines has been to improve the ground in advance to reach the ground, to make the ground in the reaching area self-sustaining, and to reach that portion with a shield machine to reach the shaft. The method of installing the entrance shaft, removing the earth retaining part of the reaching part, and pushing it into the reaching shaft is adopted.
【0003】[0003]
【発明が解決しようとする課題】しかし、前記従来技術
には次のような問題があった。 (1)従来のシールド機や推進機では、カッタビットと
掘進機本体の間に大きな隙間があるため、シールド掘進
機が到達立坑に入るまでに時間が掛かり、切羽崩壊の危
険がある。 (2)到達時に、地盤改良のための補足注入が多く必要
になる。However, the above-mentioned conventional technique has the following problems. (1) In the conventional shield machine and propulsion machine, since there is a large gap between the cutter bit and the excavator body, it takes time for the shield machine to enter the reaching shaft, and there is a risk of face collapse. (2) Upon arrival, a lot of supplemental injection for ground improvement is required.
【0004】本発明は、上記の点に鑑み提案されたもの
で、その目的とするところは、到達壁の撤去時に地山の
崩壊や地下水の浸入を最少限に抑えることができ、しか
もシールド機や推進機の到達時の補足注入を少量でまか
ない得るシールド掘進機における到達方法を提供しよう
とするものである。The present invention has been proposed in view of the above points, and an object of the present invention is to minimize the collapse of the ground and the intrusion of groundwater at the time of removal of the reaching wall, and moreover, the shield machine. The present invention aims to provide a method for reaching a shield machine, in which a small amount of supplementary injection is not required when reaching a propulsion machine.
【0005】本発明の他の目的は、シールド機や推進機
の到達後、外筒部から内筒部を切り離し、カッタ部や駆
動部分を含んだ内筒部を回収し、再利用することが可能
なシールド掘進機における到達方法を提供しようとする
ものである。Another object of the present invention is to separate the inner cylinder part from the outer cylinder part after the shield machine or the propulsion machine arrives, and to collect and reuse the inner cylinder part including the cutter part and the driving part. It is intended to provide a possible reach method in a shield machine.
【0006】[0006]
【課題を解決するための手段】上記目的を達成するた
め、本発明は外筒部1と内筒部2とを互いに結合,切り
離し可能に構成し、かつ内筒部2の前側にカッタ部11
を設け、このカッタ部11のカッタスポークの少なくと
も1本を伸縮可能に構成したシールド機や推進機を用
い、カッタ部11が到達壁30に到達するまでは、外筒
部1と内筒部2とを一体に結合するとともに、伸縮可能
なカッタスポーク15を伸長させた状態で掘進し、カッ
タ部11が到達壁30に到達後、伸縮可能なカッタスポ
ーク15を縮小させ、かつ外筒部1と内筒部2とを切り
離したのち外筒部1のみを推進させ、外筒部1の前端面
を到達壁30に到達させるようにしたものである。In order to achieve the above object, the present invention is configured such that the outer cylinder portion 1 and the inner cylinder portion 2 can be connected to and separated from each other, and the cutter portion 11 is provided on the front side of the inner cylinder portion 2.
A shield machine or a propulsion machine is provided in which at least one of the cutas pork of the cutter portion 11 is expandable and contractable, and the outer cylinder portion 1 and the inner cylinder portion 2 are used until the cutter portion 11 reaches the arrival wall 30. While integrally connecting and, the expandable cutaway pork 15 is dug in a stretched state, after the cutter portion 11 reaches the reaching wall 30, the expandable cutaway pork 15 is reduced and the outer tubular portion 1 and After disconnecting the inner tubular portion 2, only the outer tubular portion 1 is propelled so that the front end face of the outer tubular portion 1 reaches the reaching wall 30.
【0007】[0007]
【作用】本発明では、外筒部1と内筒部2とを互いに結
合,切り離し可能に構成し、かつ内筒部2の前側にカッ
タ部11を設け、このカッタ部11のカッタスポークの
少なくとも1本を伸縮可能に構成したシールド機や推進
機を用いる。According to the present invention, the outer tubular portion 1 and the inner tubular portion 2 are configured to be connectable to and detachable from each other, and the cutter portion 11 is provided on the front side of the inner tubular portion 2, and at least the cutas pork of the cutter portion 11 is provided. A shield machine or propulsion machine, which is configured to be expandable and contractible, is used.
【0008】そして、カッタ部11が到達壁30に到達
するまでの掘削時には、外筒部1と内筒部2とを一体に
結合し、かつ伸縮可能なカッタスポーク15を伸長させ
た状態で掘進する。During excavation until the cutter portion 11 reaches the reaching wall 30, the outer cylinder portion 1 and the inner cylinder portion 2 are integrally connected, and the extendable cutas pork 15 is extended. To do.
【0009】ついで、カッタ部11が到達壁30に到達
したのちは、伸縮可能なカッタスポーク15を縮小さ
せ、かつ外筒部1と内筒部2とを切り離す。その後、外
筒部1を推進させ、外筒部1の前端面を到達壁30に到
達させるようにしている。Then, after the cutter portion 11 reaches the arrival wall 30, the expandable and contractible cutas pork 15 is contracted and the outer cylinder portion 1 and the inner cylinder portion 2 are separated from each other. After that, the outer tubular portion 1 is propelled so that the front end face of the outer tubular portion 1 reaches the reaching wall 30.
【0010】このように、本発明では到達壁30に外筒
部1の前端面を臨設させるようにしているので、到達壁
の撤去時に地山の崩壊や地下水の浸入を最少限に抑える
ことができる。また、到達時の補足注入を少量でまかな
うことが可能となる。As described above, according to the present invention, since the front end face of the outer tubular portion 1 is provided on the reaching wall 30, the collapse of the ground and the intrusion of groundwater can be suppressed to the minimum when the reaching wall is removed. it can. In addition, it becomes possible to provide supplemental injection on arrival with a small amount.
【0011】さらに、本発明では前記外筒部1の前端面
を到達壁30に押し当てて密着させたのち、再び外筒部
1と内筒部2とを結合する。ついで、シールド機や推進
機を到達立坑内に押し込むかあるいは、外筒部1を到達
立坑内に押し込むようにしている。Further, in the present invention, the outer cylinder 1 and the inner cylinder 2 are joined again after the front end surface of the outer cylinder 1 is pressed against the reaching wall 30 and brought into close contact therewith. Then, the shield machine or the propulsion device is pushed into the reaching shaft, or the outer cylinder part 1 is pushed into the reaching shaft.
【0012】これにより、シールド機や推進機の到達
後、カッタ部11や駆動部分を含んだ内筒部2をそっく
り回収し、再利用することができる。As a result, after the shield machine or the propulsion machine arrives, the inner cylinder part 2 including the cutter part 11 and the drive part can be completely recovered and reused.
【0013】[0013]
【実施例】以下、本発明の実施例を図面に基づいて説明
する。図1および図2は本発明の第1実施例を示すもの
で、図1は到達壁にシールド機のカッタ部が到達したと
きの状態を示す一部縦断面図、図2は到達壁にシールド
機が到達後、外筒部を押し当てた状態を示す一部縦断面
図である。Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show a first embodiment of the present invention. FIG. 1 is a partial vertical cross-sectional view showing a state in which a cutter portion of a shield machine reaches a reaching wall, and FIG. 2 shows a shield on the reaching wall. It is a partial longitudinal cross-sectional view showing a state in which the outer cylinder portion is pressed after the machine arrives.
【0014】これらの図に示す第1実施例では、外筒部
1と、内筒部2と、この内筒部2の前面側に設けられた
カッタ部11と、このカッタ部11の駆動装置21と、
シールドジャッキ26と、排土装置29とを備えたシー
ルド機を用いて横坑を掘削し、到達壁30に到達するよ
うにしている。In the first embodiment shown in these drawings, an outer cylinder portion 1, an inner cylinder portion 2, a cutter portion 11 provided on the front side of the inner cylinder portion 2, and a drive device for the cutter portion 11. 21,
A horizontal shaft is excavated by using a shield machine provided with a shield jack 26 and an earth discharging device 29 so as to reach the reaching wall 30.
【0015】前記シールド機の外筒部1は、隔壁3と、
摺動部5とを有している。前記隔壁3は、リング状に形
成され、外筒部1の前端部寄りの内側に固定されてい
る。前記摺動部5は、内径が隔壁3の内径と面一の筒状
に形成され、前端部は隔壁3の後面に固定され、後端部
はリング状の支持部材7により外筒部1に固定されてい
る。The outer cylinder portion 1 of the shield machine has a partition wall 3 and
It has a sliding part 5. The partition wall 3 is formed in a ring shape and is fixed to the inside of the outer tubular portion 1 near the front end portion. The sliding portion 5 is formed in a cylindrical shape having an inner diameter flush with the inner diameter of the partition wall 3, a front end portion fixed to the rear surface of the partition wall 3, and a rear end portion attached to the outer cylindrical portion 1 by a ring-shaped support member 7. It is fixed.
【0016】一方、前記内筒部2は隔壁4と、摺動部6
とを有している。前記隔壁4は、前記外筒部1の隔壁3
に内接する円板状に形成されている。前記摺動部6は、
前記外筒部1の摺動部5に内接する筒状に形成されてお
り、また隔壁4の後面に固定され、さらにリブ状の支持
部材8により支持されている。そして、前記隔壁4の中
心部にはカッタ部11の回転軸用の軸受10が取り付け
られ、下端部には土砂の入口28が設けられている。On the other hand, the inner cylindrical portion 2 has a partition wall 4 and a sliding portion 6.
And have. The partition wall 4 is the partition wall 3 of the outer cylinder part 1.
Is inscribed in a disk shape. The sliding portion 6 is
It is formed in a tubular shape that is inscribed in the sliding portion 5 of the outer tubular portion 1, is fixed to the rear surface of the partition wall 4, and is supported by a rib-shaped support member 8. A bearing 10 for the rotary shaft of the cutter 11 is attached to the center of the partition wall 4, and an inlet 28 for earth and sand is provided at the lower end.
【0017】前記外筒部1と内筒部2とは、摺動部5,
6の長さ方向に間隔をおいて設けられたボルト通し穴に
挿通されかつ締結される推力伝達ボルト9を介して一体
に結合され、また推力伝達ボルト9を取り外し,切り離
すことにより、摺動部5,6を介して外筒部1が内筒部
2に対して摺動可能に構成されている。The outer cylinder part 1 and the inner cylinder part 2 are slidable parts 5, 5.
6 are integrally coupled via a thrust transmission bolt 9 which is inserted and fastened in bolt through holes provided at intervals in the length direction of 6, and the thrust transmission bolt 9 is removed and separated to form a sliding portion. The outer tubular portion 1 is configured to be slidable with respect to the inner tubular portion 2 via 5, and 6.
【0018】前記カッタ部11は、回転軸12と、これ
の前端部に設けられたボス13と、固定のカッタスポー
ク14および伸縮可能なカッタスポーク15とを有して
いる。前記回転軸12は、内筒部2の隔壁4に取り付け
られた軸受10に支持され、かつ駆動装置21に連結さ
れている。前記ボス13は、回転軸12の前端部に設け
られており、このボス13の前面には中央先行切削ビッ
ト17が設けられている。前記固定のカッタスポーク1
4は、ボス13の外周に間隔をおいて複数本取り付けら
れている。前記伸縮可能なカッタスポーク15は、この
実施例ではボス13の外周に1本設けられており、内部
に組み込まれたカッタスポーク伸縮ジャッキ16を介し
て内筒部2の半径方向に伸縮し得るようになっている。
前記固定のカッタスポーク14および伸縮可能なカッタ
スポーク15の外側の面にはそれぞれビット18が設け
られ、内側の面である切羽室20側の面にはそれぞれ練
り混ぜ翼19が設けられている。The cutter portion 11 has a rotary shaft 12, a boss 13 provided at a front end portion of the rotary shaft 12, a fixed cutlass pork 14 and an expandable and contractable cuttus pork 15. The rotating shaft 12 is supported by a bearing 10 attached to the partition wall 4 of the inner cylindrical portion 2 and is connected to a driving device 21. The boss 13 is provided at the front end of the rotary shaft 12, and a central leading cutting bit 17 is provided on the front surface of the boss 13. The fixed Katta pork 1
A plurality of 4 are attached to the outer periphery of the boss 13 at intervals. In this embodiment, one expandable and contractible Kattus pork 15 is provided on the outer circumference of the boss 13 so that it can be expanded and contracted in the radial direction of the inner tube portion 2 via the Kattus spoke expansion and contraction jack 16 incorporated therein. It has become.
Bits 18 are provided on the outer surfaces of the fixed cutas pork 14 and the expandable cutas pork 15, respectively, and kneading blades 19 are provided on the inner surface, that is, the face facing the facet 20.
【0019】前記駆動装置21は、内筒部2の隔壁4の
後面側に固定されたフレーム22と、このフレーム22
に支持されたモータ23と、このモータ23に連結され
たピニオン24と、回転軸12に取り付けられかつピニ
オン24にかみ合わされたギヤ25とを有して構成され
ている。The drive device 21 includes a frame 22 fixed to the rear surface side of the partition wall 4 of the inner cylinder portion 2, and the frame 22.
The motor 23 supported by the motor 23, the pinion 24 connected to the motor 23, and the gear 25 attached to the rotary shaft 12 and meshed with the pinion 24.
【0020】前記シールドジャッキ26は、外筒部1の
内部側に設置され、シールド機内の後方で組み立てられ
たセグメント27に反力を取り、外筒部1の摺動部5の
支持部材7を押すようになっている。The shield jack 26 is installed on the inner side of the outer cylinder part 1 and applies a reaction force to the segment 27 assembled in the rear of the shield machine to support the support member 7 of the sliding part 5 of the outer cylinder part 1. It is supposed to be pushed.
【0021】前記排土装置29は、内筒部2の内部に設
置されており、掘削土砂を、内筒部2の隔壁4に設けら
れた土砂の入口28を通じて取り込み、シールド機の後
方に搬送するようになっている。The earth unloading device 29 is installed inside the inner cylinder portion 2, and takes in the excavated earth and sand through the earth and sand inlet 28 provided in the partition wall 4 of the inner cylinder portion 2 and conveys it to the rear of the shield machine. It is supposed to do.
【0022】次に、前記シールド機を使って行う到達方
法について説明する。Next, an arrival method performed by using the shield machine will be described.
【0023】まず、到達壁30に到達するまでは、図1
に示すように、外筒部1と内筒部2とを、摺動部5,6
に設けられたボルト通し穴に挿通され,締結された推力
伝達ボルト9により一体に結合している。また、カッタ
部11のボス13に設けられた伸縮可能なカッタスポー
ク15を、カッタスポーク伸縮ジャッキ16を介して外
筒部1の外径に合わせて伸長させる。First, until reaching the reaching wall 30, as shown in FIG.
As shown in FIG. 2, the outer tubular portion 1 and the inner tubular portion 2 are connected to the sliding portions 5, 6
It is inserted into the bolt through hole provided in the and is integrally connected by the tightened thrust transmission bolt 9. In addition, the expandable Kattus pork 15 provided on the boss 13 of the cutter unit 11 is extended via the Cutas pork expansion / contraction jack 16 according to the outer diameter of the outer cylinder unit 1.
【0024】この状態で、駆動装置21のモータ23を
駆動し、ピニオン24およびギヤ25を通じて回転軸1
2を回転させる。これにより、カッタ部11のボス13
の前面に設けられた中央先行切削ビット17により地山
が他のビット18に先行して掘削され、続いてボス13
の外周に取り付けられた固定のカッタスポーク14およ
び伸縮可能なカッタスポーク15に設けられたビット1
8により、中央先行切削ビット17の周りの地山が掘削
される。In this state, the motor 23 of the drive unit 21 is driven, and the rotary shaft 1 is driven through the pinion 24 and the gear 25.
Rotate 2. As a result, the boss 13 of the cutter unit 11
A central leading cutting bit 17 provided on the front surface of the ground excavates the ground ahead of the other bits 18, and subsequently the boss 13
Bit 1 on fixed cutas pork 14 and stretchable cutas pork 15 attached to the outer circumference of
8 excavates the ground around the central leading cutting bit 17.
【0025】しかして、掘削された土砂には必要により
ベントナイト等の作泥材が注入され、ついで切羽室20
に取り込まれ、ここで固定のカッタスポーク14および
伸縮可能なカッタスポーク15に設けられた練り混ぜ翼
19により攪拌され、掘削された土砂と作泥材とが混練
され、切羽を押さえるに足る塑性と流動性とを持った土
砂が作られる。さらに、掘削土砂は内筒部2の隔壁4に
設けられた入口28を通じて排土装置29に取り込ま
れ、シールド機の後方へ搬送される。If necessary, a mud making material such as bentonite is injected into the excavated earth and sand, and then the face chamber 20.
It is taken in by and is agitated by the mixing blades 19 provided on the fixed cutas pork 14 and the expandable cutas pork 15, and the excavated earth and sand and the mud material are kneaded, and the plasticity is sufficient to hold down the face. Sediment with fluidity is made. Further, the excavated earth and sand is taken into the earth discharging device 29 through the inlet 28 provided in the partition wall 4 of the inner tubular portion 2 and conveyed to the rear of the shield machine.
【0026】前述の掘削中、シールド機の後方でセグメ
ント27が築造される。そして、外筒部1の内部側に設
置されたシールドジャッキ26を伸長させ、セグメント
27に反力を取って外筒部1の摺動部5の支持部材7を
押す。この状態では、前述のごとく、外筒部1と内筒部
2とは推力伝達ボルト9を介して摺動部5,6同士が結
合されているため、外筒部1の摺動部5の支持部材7が
押されることにより、外筒部1と内筒部2とが一体とな
って推進され、前記動作を繰り返し行うことによって、
到達壁30にカッタ部11の中央先行切削ビット17が
当接する。During the aforementioned excavation, a segment 27 is built behind the shield machine. Then, the shield jack 26 installed on the inner side of the outer tubular portion 1 is extended, a reaction force is applied to the segment 27, and the supporting member 7 of the sliding portion 5 of the outer tubular portion 1 is pushed. In this state, as described above, the sliding portions 5 and 6 of the outer tubular portion 1 and the inner tubular portion 2 are coupled to each other through the thrust transmission bolts 9, so that the sliding portion 5 of the outer tubular portion 1 is By pushing the support member 7, the outer tubular portion 1 and the inner tubular portion 2 are integrally propelled, and by repeating the above operation,
The central leading cutting bit 17 of the cutter portion 11 contacts the reaching wall 30.
【0027】到達壁30にカッタ部11の中央先行切削
ビット17が到達したときは、推力伝達ボルト9を取り
外し、外筒部1と内筒部2とを切り離す。また、伸縮可
能なカッタスポーク15をカッタスポーク伸縮ジャッキ
16により縮小させ、外筒部1を押し出したときに伸縮
可能なカッタスポーク15に当たらないようにする。When the central leading cutting bit 17 of the cutter portion 11 reaches the reaching wall 30, the thrust transmission bolt 9 is removed and the outer cylinder portion 1 and the inner cylinder portion 2 are separated. Also, the expandable Kattus pork 15 is contracted by the Cutas pork expansion jack 16 so that it does not hit the expandable Kattus pork 15 when the outer cylinder part 1 is pushed out.
【0028】ついで、シールドジャッキ26を伸長さ
せ、このときもセグメント27に反力を取って外筒部1
の摺動部5の支持部材7を押す。この状態では、外筒部
1と内筒部2とが切り離され、しかも内筒部2に設けら
れたカッタ部11の中央先行切削ビット17が到達壁3
0に当接しているので、外筒部1のみが前方に押し出さ
れ、図2に示すように、外筒部1の前端面が到達壁30
に臨設される。Then, the shield jack 26 is extended, and the reaction force is applied to the segment 27 at this time as well, and the outer cylinder 1
The support member 7 of the sliding portion 5 is pushed. In this state, the outer tubular portion 1 and the inner tubular portion 2 are separated from each other, and the central leading cutting bit 17 of the cutter portion 11 provided on the inner tubular portion 2 is attached to the reaching wall 3
Since it is in contact with 0, only the outer tubular portion 1 is pushed forward, and as shown in FIG.
Will be installed in.
【0029】その後、外筒部1と内筒部2とを再び推力
伝達ボルト9により摺動部5,6を介して一緒に結合
し、シールドジャッキ26を伸長させ、外筒部1と内筒
部2とを一緒に到達立坑内に押し込むあるいは、外筒部
1のみを到達立坑内に押し込む。After that, the outer cylinder portion 1 and the inner cylinder portion 2 are again joined together by the thrust transmission bolts 9 via the sliding portions 5 and 6, and the shield jack 26 is extended to extend the outer cylinder portion 1 and the inner cylinder. The part 2 is pushed together into the reaching shaft, or only the outer cylinder part 1 is pushed into the reaching shaft.
【0030】以上のように、この第1実施例では到達壁
30にシールド機の外筒部1の前端面を臨設させるよう
にしているので、到達壁撤去時に地山の崩壊や地下水の
浸入を最少限に抑え、安全に到達させることができる。As described above, in this first embodiment, the front end face of the outer cylinder portion 1 of the shield machine is provided on the reaching wall 30 so as to prevent collapse of the ground and intrusion of groundwater when the reaching wall is removed. It can be reached safely with a minimum.
【0031】また、シールド機の到達時に、地盤改良の
ための補足注入を少量に抑えることが可能となり、経済
的に到達させることができる。Further, when the shield machine arrives, supplementary injection for ground improvement can be suppressed to a small amount, which can be economically achieved.
【0032】さらに、シールド機の到達後、到達立坑内
で、カッタ部11や駆動部分である駆動装置21を含ん
だ内筒部2をそっくり回収し、再利用することが可能と
なる。また、到達立坑内に作業スペースがない場合、内
筒部分のみを発進側に引き抜いて、再利用が可能とな
る。Further, after the shield machine arrives, the inner cylinder portion 2 including the cutter portion 11 and the driving device 21 as the driving portion can be completely recovered and reused in the reaching shaft. Also, when there is no working space in the reaching shaft, only the inner cylinder part can be pulled out to the starting side and reused.
【0033】ついで、図3および図4は本発明の第2実
施例を示すもので、図3は到達壁に推進機のカッタ部が
到達したときの状態を示す一部縦断面図、図4は到達壁
に推進機が到達後、外筒部を押し込んだ状態を示す一部
縦断面図である。Next, FIGS. 3 and 4 show a second embodiment of the present invention. FIG. 3 is a partial longitudinal sectional view showing a state where the cutter portion of the propulsion machine reaches the reaching wall. FIG. 6 is a partial vertical cross-sectional view showing a state in which the outer cylinder portion is pushed in after the propulsion device reaches the reaching wall.
【0034】これらの図に示す第2実施例では、外筒部
1と内筒部2の組の後方にヒューム管31が設置されて
いる。前記ヒューム管31の前端部には外郭部32が取
り付けられており、後方には元押しジャッキまたは中押
しジャッキ(いずれも図示せず)等が配備されている。
前記外郭部32の内部と内筒部2の内部にわたって、内
郭部33が配置されている。前記内郭部33と内筒部2
間には、方向修正ジャッキ41が設けられている。前記
外郭部32の前端部には、外筒部1の方向に向かって中
間筒42が固定されている。In the second embodiment shown in these figures, the fume pipe 31 is installed behind the set of the outer cylinder portion 1 and the inner cylinder portion 2. An outer shell portion 32 is attached to the front end portion of the fume pipe 31, and an original push jack or an intermediate push jack (neither is shown) or the like is provided on the rear side.
An inner shell portion 33 is arranged across the inside of the outer shell portion 32 and the inside of the inner tubular portion 2. The inner shell 33 and the inner cylinder 2
A direction correction jack 41 is provided between them. An intermediate cylinder 42 is fixed to the front end of the outer shell 32 in the direction of the outer cylinder 1.
【0035】前記外郭部32は、ヒューム管31の前端
部の外側に固定された外郭筒34と、リング状に形成さ
れかつ外郭筒34の前端部の内周に固定された前側端板
36と、同じリング状に形成されかつヒューム管31の
前端面に当接されて外郭筒34の内周に固定された後側
端板37と、筒状に形成されかつ前側端板36および後
側端板37間の内径に合わせて固定された外郭摺動部3
8とを有している。The outer shell 32 includes an outer shell 34 fixed to the outside of the front end of the fume tube 31, and a front end plate 36 formed in a ring shape and fixed to the inner circumference of the front end of the outer shell 34. , A rear end plate 37 formed in the same ring shape and fixed to the inner circumference of the outer casing 34 by abutting on the front end surface of the fume tube 31, and a front end plate 36 and a rear end formed in a tubular shape. Outer shell sliding part 3 fixed according to the inner diameter between the plates 37
8 and.
【0036】前記内郭部33は、外郭摺動部38に内接
可能な筒状に形成された内郭摺動部39と、内筒部2の
摺動部6に内接する筒状に形成されかつ内郭摺動部39
に連結された内郭筒35とを有している。The inner shell portion 33 is formed in a tubular shape so as to be inscribed in the outer shell sliding portion 38 and in a tubular shape so as to be inscribed in the sliding portion 6 of the inner tubular portion 2. And inner shell sliding portion 39
And an inner casing 35 connected to the.
【0037】前記外郭部32と内郭部33とは、外郭摺
動部38および内郭摺動部39の長さ方向に間隔をおい
て設けられたボルト通し穴に挿通され,締結される推力
伝達ボルト40を介して一体に結合され、また推力伝達
ボルト40を取り外すことにより切り離し、内郭部33
に対して外郭部32を相対的に前方へ摺動させ得るよう
になっている。The outer shell portion 32 and the inner shell portion 33 are inserted into bolt through holes provided at intervals in the lengthwise direction of the outer shell sliding portion 38 and the inner shell sliding portion 39 and fastened to each other for fastening. The thrust transmission bolts 40 are integrally connected via the transmission bolts 40, and the thrust transmission bolts 40 are removed to separate the inner portion 33.
The outer shell 32 can be slid forward relative to the outer shell 32.
【0038】前記方向修正ジャッキ41は、内郭部33
の内郭筒35の内部と、内筒部2の摺動部6の内部にわ
たって取り付けられている。The direction correcting jack 41 has an inner shell 33.
It is attached over the inside of the inner shell 35 and the inside of the sliding portion 6 of the inner cylinder 2.
【0039】前記中間筒42は、外筒部1の外径よりも
小径に形成され、かつ外郭部32側に接続され、外筒部
1の方向に伸びているが、外筒部1に固定されてはいな
い。前記外筒部1の外郭部32側に突出された部分1′
と、中間筒42間の周隙には、シール部材43が介装さ
れている。The intermediate cylinder 42 is formed to have a smaller diameter than the outer diameter of the outer cylinder part 1, is connected to the outer shell part 32 side, and extends in the direction of the outer cylinder part 1, but is fixed to the outer cylinder part 1. Not been done. A portion 1'protruding toward the outer shell portion 32 side of the outer tubular portion 1
A seal member 43 is provided in the circumferential space between the intermediate cylinders 42.
【0040】この第2実施例の他の構成については、前
記第1実施例と同様である。The other structure of the second embodiment is the same as that of the first embodiment.
【0041】次に、この第2実施例の推進機を用いて行
う到達方法について説明する。Next, an arrival method performed by using the propulsion device of the second embodiment will be described.
【0042】到達壁30に推進機が到達するまでは、図
3に示すように、外筒部1と内筒部2とを、摺動部5,
6に設けられたボルト通し穴に推力伝達ボルト9を挿通
し,締結することによって一体に結合し、ヒューム管3
1の外郭部32と内郭部33とは、外郭摺動部38と内
郭摺動部39に設けられたボルト通し穴に推力伝達ボル
ト40を挿通し,締結することによって一体に結合す
る。また、カッタ部11の伸縮可能なカッタスポーク1
5を、カッタスポーク伸縮ジャッキ16により外筒部1
や外郭筒34の外径に合わせて伸長させる。Until the propulsion machine reaches the arrival wall 30, as shown in FIG. 3, the outer cylinder portion 1 and the inner cylinder portion 2 are connected to the sliding portions 5, 5.
The thrust transmission bolts 9 are inserted into the bolt through holes provided in 6 and fastened together to be integrally joined, and the fume pipe 3
The outer shell portion 32 and the inner shell portion 33 of No. 1 are integrally coupled by inserting and fastening the thrust transmission bolts 40 into the bolt through holes provided in the outer shell sliding portion 38 and the inner shell sliding portion 39. In addition, the cutter part 11 has an expandable and contractible cutlet pork 1
5 by means of the Kattaspoke expansion and contraction jack 16
And the outer cylinder 34 is expanded according to the outer diameter of the outer cylinder 34.
【0043】この状態で、前記第1実施例と同様、駆動
装置21により回転軸12を回転させ、カッタ部11の
中央先行切削ビット17と、固定のカッタスポーク14
および伸縮可能なカッタスポーク15に設けられたビッ
ト18とにより地山を掘削し、ついで固定のカッタスポ
ーク14および伸縮可能なカッタスポーク15に設けら
れた練り混ぜ翼19により切羽室20内で掘削土砂と作
泥材とを混練する。さらに、内筒部2の隔壁4に設けら
れた入口28を通じて排土装置29に掘削土砂を取り込
み、推進機の後方へ搬送する。In this state, as in the first embodiment, the rotary shaft 12 is rotated by the drive device 21, and the central leading cutting bit 17 of the cutter portion 11 and the fixed cutlass pork 14 are provided.
And the ground 18 is excavated by the bit 18 provided on the expandable Kattus pork 15, and then the excavated earth and sand in the face chamber 20 by the mixing blades 19 provided on the fixed Cutas pork 14 and the expandable Kattus pork 15. And knead the mud making material. Further, the excavated earth and sand is taken into the earth discharging device 29 through the inlet 28 provided in the partition wall 4 of the inner cylindrical portion 2 and conveyed to the rear of the propulsion device.
【0044】掘削の途中で推進方向を修正する際、この
実施例では上向きに方向修正する場合は方向修正ジャッ
キ41を短縮させ、下向きに方向修正する場合は方向修
正ジャッキ41を伸長させて行う。When the propulsion direction is corrected during excavation, in this embodiment, the direction correction jack 41 is shortened when the direction is corrected upward, and the direction correction jack 41 is extended when the direction is corrected downward.
【0045】ついで、元押しジャッキまたは中押しジャ
ッキ等によりヒューム管31を押し、推進機をカッタ部
11の中央先行切削ビット17が到達壁30に当接する
まで押し込む。Then, the fume pipe 31 is pushed by the source push jack or the middle push jack, and the propulsion device is pushed until the central leading cutting bit 17 of the cutter portion 11 abuts on the reaching wall 30.
【0046】到達壁30にカッタ部11の中央先行切削
ビット17が到達後は、外筒部1と内筒部2の摺動部
5,6を結合している推力伝達ボルト9を取り外し、外
筒部1と内筒部2とを切り離す。また、外郭部32の外
郭摺動部38と内郭部33の内郭摺動部39とを結合し
ている推力伝達ボルト40を取り外し、外郭部32と内
郭部33とを切り離す。さらに、カッタ部11の伸縮可
能なカッタスポーク15をカッタスポーク伸縮ジャッキ
16により縮小させ、外筒部1を押し出したときに伸縮
可能なカッタスポーク15に当たらないようにする。After the center leading cutting bit 17 of the cutter portion 11 reaches the reaching wall 30, the thrust transmission bolt 9 connecting the sliding portions 5 and 6 of the outer tubular portion 1 and the inner tubular portion 2 is removed to remove it from the outside. The tubular portion 1 and the inner tubular portion 2 are separated. Further, the thrust transmission bolt 40 connecting the outer shell sliding portion 38 of the outer shell portion 32 and the inner shell sliding portion 39 of the inner shell portion 33 is removed to separate the outer shell portion 32 and the inner shell portion 33. Further, the expandable Kattus pork 15 of the cutter unit 11 is reduced by the Cutas pork expansion / contraction jack 16 so as not to hit the expandable Kattus pork 15 when the outer cylinder unit 1 is pushed out.
【0047】その後、元押しジャッキまたは中押しジャ
ッキ等によりヒューム管31を押すと、外郭部32およ
び中間筒42を通じて外筒部1のみが押し出され、図4
に示すように、到達壁30に外筒部1の前端面が押し当
てられ、臨設する。After that, when the fume pipe 31 is pushed by the original push jack or the middle push jack, only the outer cylinder part 1 is pushed out through the outer shell part 32 and the intermediate cylinder 42.
As shown in, the front end surface of the outer tubular portion 1 is pressed against the reaching wall 30 and is provided in a standing manner.
【0048】到達壁30に外筒部1の前端面を臨設させ
たのち、再び外筒部1と内筒部2の摺動部5,6を推力
伝達ボルト9で結合し、外郭部32の外郭摺動部38と
内郭部33の内郭摺動部39とを推力伝達ボルト40に
より結合し、また到達立坑の内側から到達部分を撤去
し、元押しジャッキまたは中押しジャッキ等によりヒュ
ーム管31を押し、到達立坑内へ推進機を押し込むある
いは、外筒部分を到達立坑内へ押し込むAfter the front end surface of the outer cylinder portion 1 is provided on the reaching wall 30, the sliding portions 5 and 6 of the outer cylinder portion 1 and the inner cylinder portion 2 are again connected by the thrust transmission bolts 9 to form the outer shell portion 32. The outer shell sliding portion 38 and the inner shell sliding portion 39 of the inner shell portion 33 are connected by a thrust transmission bolt 40, and the reaching portion is removed from the inside of the reaching shaft, and the fume pipe 31 is fed by a source push jack or an intermediate push jack. Press to push the propulsion unit into the reaching shaft, or push the outer cylinder into the reaching shaft.
【0049】この第2実施例においても、到達壁30に
推進機の外筒部1の前端面を臨設させるようにしている
ので、到達壁撤去時に地山の崩壊や地下水の浸入を最少
限に抑え、安全に到達させることができる。Also in this second embodiment, since the front end face of the outer cylinder portion 1 of the propulsion unit is provided on the reaching wall 30, the collapse of the ground and the intrusion of groundwater are minimized when the reaching wall is removed. It can be suppressed and safely reached.
【0050】また、到達時に地盤改良のための補足注入
を少量に抑えることができ、経済的に到達させることが
可能となる。In addition, supplementary injection for ground improvement can be suppressed to a small amount at the time of arrival, and it can be economically achieved.
【0051】さらに、推進機の到達後、到達立坑内でカ
ッタ部11や駆動装置21を含んだ内筒部2、および内
郭部33をそっくり回収し、あるいは到達立坑側に作業
スペースがない場合は発進側に内筒部分を引き抜き、再
利用することも可能となる。Further, when the inner cylinder portion 2 including the cutter portion 11 and the drive device 21 and the inner shell portion 33 are completely recovered in the arrival shaft after the arrival of the propulsion device, or there is no working space on the arrival shaft side. It is also possible to pull out the inner cylinder part to the starting side and reuse it.
【0052】なお、前記第1,第2実施例とも、到達立
坑の側壁部分にシールド機または推進機の外径よりやや
大きい箱抜き部分を作っておき、その中に外筒部1を押
し込むように到達させるようにすれば、より一層安全に
到達させることが可能となる。In both the first and second embodiments, a box-extracting part is formed in the side wall of the reaching shaft, which is slightly larger than the outer diameter of the shield machine or the propulsion machine, and the outer cylinder part 1 is pushed into it. If it is reached, it will be possible to reach it even more safely.
【0053】また、第1,第2実施例とも、カッタスポ
ークの1本のみを伸縮可能に構成したものに限らず、全
部のカッタスポークを伸縮可能に構成したシールド機や
推進機を用いてもよい。In addition, in both the first and second embodiments, not only one of the cut-and-spokes can be expanded and contracted, but a shield machine and a propulsion machine in which all the cut-and-spokes can be expanded and contracted can also be used. Good.
【0054】[0054]
【発明の効果】以上のように、本発明では外筒部1と内
筒部2とを互いに結合,切り離し可能に構成し、かつ内
筒部2の前側にカッタ部11を設け、このカッタ部11
のカッタスポークの少なくとも1本を伸縮可能に構成し
たシールド機や推進機を用い、カッタ部11が到達壁3
0に到達するまでは、外筒部1と内筒部2とを一体に結
合するとともに、伸縮可能なカッタスポーク15を伸長
させた状態で掘進し、カッタ部11が到達壁30に到達
後、伸縮可能なカッタスポーク15を縮小させ、かつ外
筒部1と内筒部2とを切り離したのち外筒部1のみを推
進させ、外筒部1の前端面を到達壁30に到達させるよ
うにしているので、到達壁の撤去時に地山の崩壊や地下
水の浸入を最少限に抑えることができ、したがって安全
に到達し得る効果を有する外、シールド機や推進機の到
達時の補足注入が少量で足りるので、経済的に到達し得
る効果がある。As described above, according to the present invention, the outer cylinder portion 1 and the inner cylinder portion 2 are configured to be connectable to and separable from each other, and the cutter portion 11 is provided on the front side of the inner cylinder portion 2. 11
Using a shield machine or a propulsion machine in which at least one of the cutass porks of FIG.
Until it reaches 0, the outer cylinder part 1 and the inner cylinder part 2 are integrally joined, and the expandable cutas pork 15 is dug in a stretched state, and after the cutter part 11 reaches the arrival wall 30, The expandable Kattus pork 15 is contracted, and the outer cylinder part 1 and the inner cylinder part 2 are separated, and then only the outer cylinder part 1 is propelled so that the front end face of the outer cylinder part 1 reaches the reaching wall 30. Therefore, it is possible to minimize the collapse of the ground and the intrusion of groundwater when the reaching wall is removed, and therefore, it has the effect that it can be safely reached.In addition, a small amount of supplementary injection when the shield machine or propulsion machine arrives. Since it is sufficient, there is an effect that can be economically reached.
【0055】また、本発明では、シールド機または推進
機の如きマシンが到達側の立坑内に到達後、カッタスポ
ーク15と共に駆動部分を含んだ内筒部を外筒部から切
り離すことができ、そっくり完成された坑内を通して内
筒部側を発進立坑側に回収し、再利用が可能となり、設
備を有効的に再利用でき、無駄を省くことができる。Further, in the present invention, after a machine such as a shield machine or a propulsion machine has reached the inside of the shaft on the arrival side, the inner cylinder part including the drive part together with the Kattus spoke 15 can be separated from the outer cylinder part. The inner cylinder side can be recovered to the starting vertical shaft side through the completed mine and reused, the equipment can be effectively reused, and waste can be eliminated.
【図1】本発明の第1実施例を示すもので、到達壁にシ
ールド機のカッタ部が到達したときの状態を示す一部縦
断面図である。FIG. 1 is a partial vertical cross-sectional view showing a first embodiment of the present invention and showing a state when a cutter portion of a shield machine reaches a reaching wall.
【図2】第1実施例において、到達壁にシールド機のカ
ッタ部が到達後、外筒部を押し込んだ状態を示す一部縦
断面図である。FIG. 2 is a partial vertical cross-sectional view showing a state in which the outer cylinder portion is pushed in after the cutter portion of the shield machine reaches the reaching wall in the first embodiment.
【図3】本発明の第2実施例を示すもので、到達壁に推
進機のカッタ部が到達したときの状態を示す一部縦断面
図である。FIG. 3 is a partial vertical cross-sectional view showing a second embodiment of the present invention and showing a state when the cutter portion of the propulsion machine reaches the reaching wall.
【図4】第2実施例において、到達壁に推進機のカッタ
部が到達後、外筒部および外郭部を押し込んだ状態を示
す一部縦断面図である。FIG. 4 is a partial vertical cross-sectional view showing a state in which the outer cylinder portion and the outer shell portion are pushed in after the cutter portion of the propulsion device reaches the reaching wall in the second embodiment.
1 外筒部 2 内筒部 3,4 隔壁 5,6 摺動部 9 推力伝達ボルト 11 カッタ部 12 回転軸 13 ボス 14 固定のカッタスポーク 15 伸縮可能なカッタスポーク 16 カッタスポーク伸縮ジャッキ 17 中央先行切削ビット 18 ビット 21 駆動装置 26 シールドジャッキ 27 セグメント 29 排土装置 30 到達壁 31 ヒューム管 32 外郭部 33 内郭部 34 外郭筒 35 内郭筒 38 外郭摺動部 39 内郭摺動部 40 推力伝達ボルト 42 中間筒 1 outer cylinder part 2 inner cylinder part 3,4 partition wall 5,6 sliding part 9 thrust transmission bolt 11 cutter part 12 rotating shaft 13 boss 14 fixed Kattus spoke 15 expandable Kattus spoke 16 cutter spoke telescopic jack 17 center precutting Bit 18 Bit 21 Drive device 26 Shield jack 27 Segment 29 Soil removal device 30 Reaching wall 31 Fume tube 32 Outer shell portion 33 Inner shell portion 34 Outer shell tube 35 Inner shell tube 38 Outer shell sliding portion 39 Inner shell sliding portion 40 Thrust transmission bolt 42 Intermediate tube
Claims (1)
り離し可能に構成し、かつ内筒部2の前側にカッタ部1
1を設け、このカッタ部11のカッタスポークの少なく
とも1本を伸縮可能に構成したシールド機や推進機を用
い、カッタ部11が到達壁30に到達するまでは、外筒
部1と内筒部2とを一体に結合するとともに、伸縮可能
なカッタスポーク15を伸長させた状態で掘進し、カッ
タ部11が到達壁30に到達後、伸縮可能なカッタスポ
ーク15を縮小させ、かつ外筒部1と内筒部2とを切り
離したのち外筒部1のみを推進させ、外筒部1の前端面
を到達壁30に到達させることを特徴とするシールド掘
進機における到達方法。1. An outer cylinder part 1 and an inner cylinder part 2 are configured to be connectable to and separable from each other, and a cutter part 1 is provided on the front side of the inner cylinder part 2.
1 is used, and at least one of the cut-and-spokes of the cutter unit 11 is configured to be expandable / contractible by using a shield machine or a propulsion device, and the outer cylinder unit 1 and the inner cylinder unit are used until the cutter unit 11 reaches the reaching wall 30. When the cutter portion 11 reaches the reaching wall 30, the expandable cutaway pork 15 is contracted while the elastic cuttable pork 15 is contracted while the two are integrally connected to each other and the expandable cutaway pork 15 is extended. And the inner cylinder portion 2 are separated from each other, and then only the outer cylinder portion 1 is propelled so that the front end surface of the outer cylinder portion 1 reaches the arrival wall 30.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP05505293A JP3361139B2 (en) | 1993-02-19 | 1993-02-19 | Shield machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP05505293A JP3361139B2 (en) | 1993-02-19 | 1993-02-19 | Shield machine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH06240981A true JPH06240981A (en) | 1994-08-30 |
JP3361139B2 JP3361139B2 (en) | 2003-01-07 |
Family
ID=12987912
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP05505293A Expired - Lifetime JP3361139B2 (en) | 1993-02-19 | 1993-02-19 | Shield machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3361139B2 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001098887A (en) * | 1999-10-01 | 2001-04-10 | Kumagai Gumi Co Ltd | Tunnel construction method |
JP2011032794A (en) * | 2009-08-04 | 2011-02-17 | Ihi Corp | Intermediate pushing device |
JP2011074752A (en) * | 2009-09-04 | 2011-04-14 | Itochu Construction Machinery Co Ltd | Tunneling machine |
CN103711500A (en) * | 2013-12-30 | 2014-04-09 | 上海市机械施工集团有限公司 | Cutting cutter head structure of rectangular shield tunneling machine |
CN108561142A (en) * | 2018-04-03 | 2018-09-21 | 上海隧道工程有限公司 | high-pressure water jet shield machine |
KR20190028836A (en) * | 2017-09-11 | 2019-03-20 | 최희숙 | Tunneling machine for non-open cut type tunnel pressing |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP4931635B2 (en) * | 2007-02-23 | 2012-05-16 | 大豊建設株式会社 | How to reassemble the excavator |
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1993
- 1993-02-19 JP JP05505293A patent/JP3361139B2/en not_active Expired - Lifetime
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2001098887A (en) * | 1999-10-01 | 2001-04-10 | Kumagai Gumi Co Ltd | Tunnel construction method |
JP2011032794A (en) * | 2009-08-04 | 2011-02-17 | Ihi Corp | Intermediate pushing device |
JP2011074752A (en) * | 2009-09-04 | 2011-04-14 | Itochu Construction Machinery Co Ltd | Tunneling machine |
CN103711500A (en) * | 2013-12-30 | 2014-04-09 | 上海市机械施工集团有限公司 | Cutting cutter head structure of rectangular shield tunneling machine |
KR20190028836A (en) * | 2017-09-11 | 2019-03-20 | 최희숙 | Tunneling machine for non-open cut type tunnel pressing |
CN108561142A (en) * | 2018-04-03 | 2018-09-21 | 上海隧道工程有限公司 | high-pressure water jet shield machine |
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