Disintegration method of anterior shield of shield machine

A technology of shield machine and shield shell, which is applied in the direction of earth drilling, mining equipment, tunnels, etc. It can solve the problems of cumbersome operation, high restoration cost, and damage to the front shield center ring, etc., and achieve the effect of convenient operation and reduced restoration cost

Inactive Publication Date: 2018-10-23
CHINA CONSTR EIGHT ENG DIV CORP LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects of the prior art, provide a method for dismantling the front shield of the shield machine, solve the problem that the center ring of the front shield is destroyed in the existing front shield disassembly method, and the main bearing and the shield body need to be removed The cumbersome operation caused by turning over many times and the high recovery cost in the later period

Method used

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  • Disintegration method of anterior shield of shield machine
  • Disintegration method of anterior shield of shield machine
  • Disintegration method of anterior shield of shield machine

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0031] refer to image 3 , the present invention provides a method for dismantling the front shield of a shield machine, which is used to solve the existing problems of dividing the front shield in half or asymmetrical half-cut into two parts, and remove the main bearing to make the shield turn over times. Many problems, cumbersome operation and high recovery cost in the later stage. The disassembly method of the present invention divides the front shield into three parts: left, middle and right. The left and right sides are approximately symmetrical. The middle part completely retains the center ring and the opening on the soil tank panel, which avoids damage to the center ring and does not need to dismantle the main shield. The bearing avoids the turning operation of the shield body, can make the disassembly of the front shield more convenie...

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Abstract

The invention relates to a disintegration method of an anterior shield of a shield tunneling machine. The method comprises the following steps: the anterior shield of the shield tunneling machine is detached after the tunneling construction by a shield tunneling machine is completed; two dividing lines are arranged on the anterior shield and two dividing lines are arranged on both sides of a center ring of the anterior shield; the anterior shield is divided into three parts along the two dividing lines, thus completing the disintegration of the anterior shield of the shield machine. The anterior shield is divided into three parts, which protects the integrity of the central ring, and eliminates the shield body turning-over operation without dismantling the main bearing, which makes the anterior shield disintegration more convenient. The recovery cost can be greatly reduced in the later period, and the goal of safely and smoothly dismantling the shield tunneling machine from the tunnelcan be achieved.

Description

technical field [0001] The invention relates to the technical field of shield tunneling, in particular to a method for dismantling the front shield of a shield tunneling machine. Background technique [0002] After the tunneling of the section is completed, the shield machine enters the receiving shaft, and the shield machine needs to be hoisted out from the receiving shaft. Since there is no adjustment for hoisting in the receiving shaft, the existing method is to disassemble the shield machine in the receiving shaft and divide it into several parts, and then use the transport trolley to transport each part back to the originating shaft along the excavated tunnel and hoist it out. [0003] In the prior art, there are two methods for dismantling the front shield, one is the centrosymmetric split method, such as figure 1 As shown, a cutting line 21 passing through the center of the circle is set on the end face of the front shield 10, and the cutting line 21 is set through t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/08
CPCE21D9/08
Inventor 李海刘后华姜玉骆小芳朱顺鸿赵仁勇李焕
Owner CHINA CONSTR EIGHT ENG DIV CORP LTD
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