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A construction method and auxiliary device for removing segment in a hole

A construction method and technology of segment assembling machine, which are applied in vertical shaft equipment, earthwork drilling, wellbore lining, etc., can solve the problem that segment connecting pins are not easy to be disassembled, etc., so as to improve construction safety factor, reduce downtime, and promote high promotion. effect of value

Active Publication Date: 2021-11-30
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Claims
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Problems solved by technology

[0005] In view of the deficiencies in the above-mentioned background technology, the present invention proposes a construction method for removing the segment in the hole and the auxiliary device used, which solves the problem that the connecting pin of the segment in the hole is not easy to disassemble in the prior art

Method used

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  • A construction method and auxiliary device for removing segment in a hole
  • A construction method and auxiliary device for removing segment in a hole
  • A construction method and auxiliary device for removing segment in a hole

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Embodiment 2

[0047] Embodiment 2: A construction method for removing segments in a hole, the steps are as follows:

[0048] S1: Set the segment to be removed as the target segment 1, and set the propulsion cylinder located in front of the target segment 1 and corresponding to the target segment as the target propulsion cylinder 5; the central axis of the target propulsion cylinder 5 and the target segment The center line of the center line coincides, the propulsion cylinder is located in the shield body 4, and the layout of the target propulsion cylinder and the target segment is the existing segment laying method;

[0049] S2: Install the first tooling on the suction cup 701 of the segment assembly machine 7, the first tooling 8 is detachably connected to the suction cup for supporting the boots, and then push the target into the oil cylinder 5 through the segment assembly machine 7 and the first tooling 8 The stay shoe 6 on the removal, such as figure 1 shown.

[0050] S3: Disassemble ...

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Abstract

The invention discloses a construction method for removing a segment in a hole and an auxiliary device used therefor. The steps of the construction method are as follows: S1: Set the segment to be removed as the target segment, and set the segment located in front of the target segment and opposite to the target segment. The corresponding propulsion cylinder is set as the target propulsion cylinder; S2: install the first tooling on the suction cup of the segment assembly machine, and remove the shoe on the target propulsion cylinder through the segment assembly machine and the first tooling. The invention installs a shoe plate device, a connecting device and a removal pin at the end of the propulsion cylinder, utilizes the recovery tension of the propulsion cylinder, and cooperates with the axial force of the segment assembly machine to realize rapid and safe removal and replacement of the segments to be removed in the holes. Through the above method, the operation of dismantling the segments in the hole can be completed in time and quickly, reducing the downtime due to the operation and reducing the economic loss.

Description

technical field [0001] The invention relates to the technical field of dismantling tunnel segments, in particular to a construction method for dismantling segments in a tunnel and an auxiliary device used therefor. Background technique [0002] During the tunnel excavation, the tunnel boring machine is digging forward while laying segments to support the protective soil layer and confined water. When one of the following situations occurs in the tunnel, it is necessary to dismantle the segment of the upper ring that has been assembled in the hole: 1. After the segment of the last ring is laid, when it is inspected, it may be found that a certain piece or Some segments are damaged and cannot be repaired by normal treatment methods. The damaged segment needs to be removed and replaced with a new segment; 2. When the assembly sequence of the segments is wrong, the assembled 3. When slurry leakage is found in the shield tail during excavation, when the shield tail brush needs t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/40E21D11/08E21D11/00
CPCE21D11/003E21D11/08E21D11/40
Inventor 冯志鹏赵雅琨庞培彦任丽娜杨承璋贾金建郝凛然翟国强
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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