JP2007239377A - Method for extracting and demolish tunnel lining from entrance with gradient - Google Patents

Method for extracting and demolish tunnel lining from entrance with gradient Download PDF

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JP2007239377A
JP2007239377A JP2006065887A JP2006065887A JP2007239377A JP 2007239377 A JP2007239377 A JP 2007239377A JP 2006065887 A JP2006065887 A JP 2006065887A JP 2006065887 A JP2006065887 A JP 2006065887A JP 2007239377 A JP2007239377 A JP 2007239377A
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gradient
wellhead
centle
tunnel lining
entrance
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JP4642677B2 (en
JP2007239377A5 (en
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Katsunori Miura
勝則 三浦
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Maeda Corp
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Maeda Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To extract a tunnel lining form to the outside along a gradient from an entrance with the gradient, move the tunnel lining form to a horizontal position, and safely demolish the tunnel lining form. <P>SOLUTION: When the tunnel lining form 2 is to be drawn out from the entrance 1 with the gradient after the completion of lining works and demolished, rails 3 are underlaid along the gradient from the entrance 1 to the outside and extended and underlaid to a horizontal location. After the tunnel lining form 2 is moved over the rails 3 and drawn out along the outside gradient from the entrance 1 to the horizontal location, the tunnel lining form 2 is demolished at the horizontal location. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、勾配付きの坑口から覆工完了後のセントルを外部に引き出して解体する方法に関する。   The present invention relates to a method for pulling out a centle after completion of lining from a wellhead with a slope to dismantle it.

トンネルの築造において、覆工のために移動式のセントルが用いられる(例えば特許文献1参照)。覆工完了後、坑内でセントルの解体ができない場合、セントルは坑口から外部に引き出されて解体される。
特開2003−410171号公報
In the construction of a tunnel, a mobile centle is used for lining (see, for example, Patent Document 1). When the centle cannot be dismantled in the mine after completion of the lining, the centle is pulled out from the well hole and dismantled.
JP 2003-410171 A

ところで、勾配付きの坑口の場合、勾配に沿って外部の地面に敷設したレール上を移動させてセントルを外部に引き出した状態で解体するのは不安定な作業を強いることになる。   By the way, in the case of a wellhead with a slope, disassembling in a state where the center is pulled out and moved on a rail laid on the external ground along the slope forces an unstable work.

本発明の課題は、勾配付きの坑口において、勾配に沿って外部に引き出したセントルを水平な位置まで移動して安全な解体作業を可能とすることである。   An object of the present invention is to enable a safe dismantling operation by moving a centle drawn outside along a gradient to a horizontal position at a wellhead with a gradient.

以上の課題を解決するため、本発明は、勾配付きの坑口から覆工完了後のセントルを引き出して解体する方法であって、坑口から外部に勾配に沿ってレールを敷設するとともに、水平個所までレールを延長して敷設しておき、坑口から外部の勾配に沿ったレール上を移動させてセントルを引き出して水平個所まで移動した後、その水平個所においてセントルを解体することを特徴とする。   In order to solve the above problems, the present invention is a method of pulling out a centle after lining from a sloped wellhead and dismantling it, laying rails along the slope from the wellhead to the outside, and to a horizontal location The rail is extended and laid, and the center is moved from the wellhead along the outer gradient along the rail, the center is pulled out and moved to a horizontal location, and then the center is disassembled at the horizontal location.

本発明によれば、勾配付きの坑口からセントルを外部の勾配に沿ったレール上を移動させて引き出して水平個所まで移動した後、その水平個所においてセントルを解体するため、坑内での解体ができなく、かつ勾配付きの坑口の場合でも、坑口から外部の勾配に沿って引き出したセントルを水平個所において安全でスムーズに解体できる。   According to the present invention, the centle is moved from the sloped wellhead on the rail along the external slope and pulled to the horizontal location, and then the centle is disassembled at the horizontal location. Even in the case of a wellhead with a slope, it is possible to safely and smoothly dismantle the centles drawn from the wellhead along an external slope at a horizontal location.

以下、図を参照して本発明を実施するための最良の形態を詳細に説明する。
図1は本発明を適用した一実施形態を示すもので、1は勾配付きの坑口、2はセントル、3はレール、4はコンクリートブロック、5はコンクリート道床である。
実施例において、勾配付きの坑口1は、周回道路の直下にあり、構造上、複鉄筋(アーチ及びインバート)区間となるため、インバートの後施工ができない状況である。そのため、勾配付きの坑口1の前でセントル2を水平にするクリアランスが確保できず、勾配付きの坑口1から同一勾配で外部にセントルを引き出して解体する必要がある。
Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.
FIG. 1 shows an embodiment to which the present invention is applied. 1 is a wellhead with a slope, 2 is a centle, 3 is a rail, 4 is a concrete block, and 5 is a concrete roadbed.
In an Example, since the wellhead 1 with a gradient is directly under a round road and becomes a double rebar (arch and invert) section on a structure, it is the situation which cannot perform post-invert construction. Therefore, the clearance for leveling the centle 2 in front of the wellhead 1 with the slope cannot be secured, and it is necessary to draw out the centle from the wellhead 1 with the slope to the outside with the same slope.

従って、実施例では、勾配付きの坑口1から外部に、同一勾配の盛土をして、その盛土の勾配に沿ってレール3を敷設しておく。具体的には、図3に示すように、勾配付きの坑口1から同一勾配の盛土を水平盤までしておき、レール3の固定は現場の残コンで製作したコンクリートブロック4を枕として使用することによりレール3を敷設しておくことで、セントル2の移動時の反力がとれるようにした。
そして、勾配摺り付け区間は、セントル2の移動時の反力が大きくなることから、現場の捨てコンを打設して、図2に示すように、コンクリート道床5を水平盤まで敷設した。このコンクリート道床5に直にレール3を敷設した。
さらに、水平盤において、レール3を延長して敷設しておく。具体的には、図3に示すように、残コンで製作したコンクリートブロック4を枕としてレール3を敷設した。
Therefore, in an Example, the bank of the same gradient is carried out from the well opening 1 with a gradient to the exterior, and the rail 3 is laid along the gradient of the bank. Specifically, as shown in FIG. 3, a bank with the same slope is provided from the wellhead 1 with a slope to a horizontal board, and the rail 3 is fixed by using a concrete block 4 made of the remaining concrete on the site as a pillow. By laying the rail 3 by this, the reaction force at the time of movement of the centle 2 can be taken.
And since the reaction force at the time of the movement of the centle 2 becomes large in the slope-grinding section, an abandoned concrete at the site was placed and the concrete roadbed 5 was laid to a horizontal board as shown in FIG. The rail 3 was laid directly on the concrete roadbed 5.
Furthermore, the rail 3 is extended and laid on the horizontal board. Specifically, as shown in FIG. 3, the rails 3 were laid using the concrete blocks 4 made of the remaining components as pillows.

次に、以上の勾配付きの坑口1から覆工完了後のセントル2を外部に引き出して解体する方法について説明する。
これに先立ち、覆工完了後は、坑内のレール上に移動させてセントル2を勾配付きの坑口1の付近に戻しておく。
そして、図1及び図2に示すように、勾配付きの坑口1からセントル2を外部の勾配に沿ったレール3上に移動させて引き出し、続いて、図3に示すように、セントル2を水平盤まで移動させる。
その後、その水平盤において、図示しないが、クレーン等を用いてセントル2を解体する。
Next, the method of pulling out the centle 2 after the completion of the lining from the wellhead 1 with the above gradient and dismantling it will be described.
Prior to this, after the lining is completed, the centre 2 is moved back to the vicinity of the wellhead 1 with the gradient by moving it on the rail in the mine.
Then, as shown in FIGS. 1 and 2, the centle 2 is moved from the wellhead 1 with the slope to the rail 3 along the external slope and pulled out. Subsequently, as shown in FIG. Move to the board.
Then, although not shown in the figure, the center 2 is disassembled using a crane or the like.

このように、坑内での解体ができなく、かつ勾配付きの坑口1の場合において、坑口1から外部の勾配に沿って引き出したセントル2を水平盤にてスムーズに解体できて、作業の安全を確保できるものとなる。   In this way, in the case of a wellhead 1 with a slope that cannot be dismantled in the mine shaft, the centle 2 pulled out from the wellhead 1 along the external gradient can be smoothly dismantled on a horizontal plate, so that work safety is ensured. It can be secured.

なお、以上の実施形態においては、坑口から外部に向かって上る勾配としたが、本発明はこれに限定されるものではなく、坑口から外部に向かって下る勾配であっても良い。
また、坑口の周辺部の条件等も任意であり、その他、具体的な細部構成等についても適宜に変更可能であることは勿論である。
In the above-described embodiment, the gradient rising from the wellhead to the outside is used. However, the present invention is not limited to this, and may be a gradient descending from the wellhead to the outside.
Moreover, the conditions of the peripheral part of a wellhead, etc. are also arbitrary, and it is needless to say that other specific detailed configurations can be appropriately changed.

本発明を適用した一実施形態を示すもので、外部から坑口側を見た概略斜視図である。1 shows an embodiment to which the present invention is applied, and is a schematic perspective view of a wellhead side as viewed from the outside. 地面へのコンクリート打設を示した概略斜視図である。It is the schematic perspective view which showed concrete placement to the ground. セントルの移動中を示した概略斜視図である。It is the schematic perspective view which showed the movement of a centle.

符号の説明Explanation of symbols

1 勾配付きの坑口
2 セントル
3 レール
4 コンクリートブロック
5 コンクリート道床
1 Wellhead with slope 2 Centle 3 Rail 4 Concrete block 5 Concrete roadbed

Claims (1)

勾配付きの坑口から覆工完了後のセントルを引き出して解体する方法であって、
坑口から外部に勾配に沿ってレールを敷設するとともに、水平個所までレールを延長して敷設しておき、
坑口から外部の勾配に沿ったレール上を移動させてセントルを引き出して水平個所まで移動した後、
その水平個所においてセントルを解体することを特徴とする勾配付き坑口からのセントル引き出し解体方法。
It is a method of pulling out the centle after lining is completed from a wellhead with a slope and dismantling it,
While laying the rail along the gradient from the wellhead to the outside, extend the rail to a horizontal location,
After moving on the rail along the external gradient from the wellhead and pulling the centle to the horizontal location,
A method for withdrawing a centle from a sloped wellhead, wherein the centle is disassembled at the horizontal location.
JP2006065887A 2006-03-10 2006-03-10 Centr pulling out from sloped wellhead Active JP4642677B2 (en)

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JP2007239377A true JP2007239377A (en) 2007-09-20
JP2007239377A5 JP2007239377A5 (en) 2010-10-14
JP4642677B2 JP4642677B2 (en) 2011-03-02

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5652295A (en) * 1979-10-02 1981-05-11 Kajima Corp Inclined shaft excavation of excavating jumbo
JPH03151497A (en) * 1989-11-07 1991-06-27 Kumagai Gumi Co Ltd Segment transfer device used in shield method
JPH0430094A (en) * 1990-05-26 1992-02-03 Kumagai Gumi Co Ltd Starting device and starting method of shield excavator for inclined shaft
JP2004171549A (en) * 2002-11-06 2004-06-17 Univ Niigata Random number generation method and random number generation device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5652295A (en) * 1979-10-02 1981-05-11 Kajima Corp Inclined shaft excavation of excavating jumbo
JPH03151497A (en) * 1989-11-07 1991-06-27 Kumagai Gumi Co Ltd Segment transfer device used in shield method
JPH0430094A (en) * 1990-05-26 1992-02-03 Kumagai Gumi Co Ltd Starting device and starting method of shield excavator for inclined shaft
JP2004171549A (en) * 2002-11-06 2004-06-17 Univ Niigata Random number generation method and random number generation device

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