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Shield machine jamming monitoring and preventing device based on measurement of expanding excavation gap

A technology of shield jamming and clearance, which is applied in the direction of measuring devices, mechanical clearance measurement, force/torque/power measuring instruments, etc., which can solve the problems of insufficient machine jam monitoring and preventive measures, so as to reduce the risk of machine jamming and improve safety Sexuality, the effect of solving monitoring difficulties

Pending Publication Date: 2022-03-01
SHENZHEN METRO CONSTR GRP CO LTD +1
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to provide a shield machine jam monitoring and prevention device based on measuring the excavation gap to solve the problem of insufficient jam monitoring and preventive measures in the existing shield tunnel excavation process

Method used

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  • Shield machine jamming monitoring and preventing device based on measurement of expanding excavation gap
  • Shield machine jamming monitoring and preventing device based on measurement of expanding excavation gap
  • Shield machine jamming monitoring and preventing device based on measurement of expanding excavation gap

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Embodiment Construction

[0027] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0028] Such as figure 1 As shown, a shield machine jam monitoring and prevention device based on measuring the excavation expansion gap includes a monitoring mechanism 2 arranged inside the shield shell 1 and used to monitor the change of the excavation expansion gap and a monitoring mechanism 2 arranged on the shield shell 1 The prevention mechanism 3 inside and used to prevent the jamming of the shield machine. The monitoring mechanism 2 installs the vault, spandrel and arch waist of the word shield respectively, and monitors the change trend of the excavation expansion gap and the earth pressure value at key positions. affect the normal construction of the tunnel.

[0029] Such as figure 2 As shown, the monit...

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Abstract

The invention discloses a shield machine jamming monitoring and preventing device based on measurement of an expanding excavation gap. The shield machine jamming monitoring and preventing device comprises a monitoring mechanism and a preventing mechanism, wherein the monitoring mechanism is arranged in a shield shell of a shield and used for monitoring change pairs of the expanding excavation gap, and the preventing mechanism is arranged in the shield shell of the shield and used for preventing the shield machine jamming; the monitoring mechanism comprises a shell and a monitoring assembly arranged in the shell through a rolling assembly, and a metal probe of the monitoring assembly extends out of the outer side of the shield shell of the shield and makes contact with surrounding rock. The device is a monitoring device which reflects the change of the expanding excavation gap according to the compression amount of the spring, and can also measure the soil pressure on the surface of the shield shell through a soil pressure sensor arranged on the device; shield tunneling can be manually suspended through the supporting assembly at the shield tail of the shield tunneling machine, the size of the expanding excavation gap around a tunnel is kept, it is guaranteed that bin opening and tool changing work has enough time, operation is reliable, and use is convenient and fast.

Description

technical field [0001] The invention relates to the technical field of shield tunnel excavation construction, in particular to a shield machine jam monitoring and prevention device based on measuring the excavation gap. Background technique [0002] With the continuous development of my country's urban rail transit construction, a large number of subway tunnel projects passing through hard rock strata have appeared in various places. When lithological strata appear in the construction section, due to the large jacking force required for the shield to penetrate the rock mass, the large amount of tool wear and the impact of the extrusion deformation of the surrounding rock, machine jamming may occur. For the shield and TBM commonly used in subway engineering, the jacking force comes from the reaction force between the jack at the end of the shield and the lining of the segment, and the TBM that directly exerts reaction force on the rock mass around the tunnel by using the supp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/00E21D9/06G01B5/14G01L5/00
CPCE21D9/003E21D9/06E21D9/0635G01L5/0028G01B5/14
Inventor 宋天田马杲宇黄际政姚超凡杨军伍何川何刚王士民刘晓阳娄永录罗晓明
Owner SHENZHEN METRO CONSTR GRP CO LTD
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