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A real-time monitoring device for the convergence deformation of the surrounding rock in the shield area of ​​the shield machine

A technology of convergence deformation and real-time monitoring, applied in measurement devices, optical devices, slitting machinery, etc., to achieve the effect of ensuring reliability

Active Publication Date: 2021-04-02
WUHAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention aims to solve the problem of monitoring the deformation of the surrounding rock at the shield of the double-shield type shield machine by using emerging technical means. The monitoring device for the deformation of the surrounding rock at the shield of the double-shield type shield machine has good real-time performance , Easy installation, remote wireless operation, less interference to the construction process, etc.

Method used

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  • A real-time monitoring device for the convergence deformation of the surrounding rock in the shield area of ​​the shield machine
  • A real-time monitoring device for the convergence deformation of the surrounding rock in the shield area of ​​the shield machine
  • A real-time monitoring device for the convergence deformation of the surrounding rock in the shield area of ​​the shield machine

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Embodiment example

[0035] Two, the following is an introduction to a specific implementation case of the present invention, mainly including the first section, the assembly of the laser radar and the lifting device

[0036] Such as figure 2As shown, the laser radar 8 is connected to the push rod motor 17 through the push rod connector 23 and the radar connection plate 15, and the push rod connector 23 is combined with the push rod 24 of the push rod motor 17 by external threads. The push rod motor 17 is fixed on the chassis mounting plate 12 through the motor fixing plate 26 . 25 is the motor of push rod motor.

[0037] Wherein the detail figure that lidar 8 is connected with push rod motor 17 is as follows image 3 As shown, the laser radar 8 is fixed with the radar connector 15 by screws through the four M3 threaded holes of its base. The plate 15 rotates about the screw 22 as an axis. The radar positioning plate 29 and the L-shaped groove of the push rod connector 23 jointly position the...

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Abstract

The invention relates to a real-time monitoring device for the convergence and deformation of the surrounding rock in the shield area of ​​the shield machine. The device consists of a push rod motor, an H bridge circuit, an ARM chip and a power module fixed on the mounting plate in the protective box, and fixed on the motor push rod. The laser radar, the hardware part such as the portable WIFI module embedded in the side wall of the protective box, and the software part such as the control program and communication protocol written for this device, and the measurement data are filtered through signal processing and other technologies and curve fitting algorithms , to reproduce the cross-sectional shape of the surrounding rock. The box is embedded in the inner wall of the shield with the hanging ears on both sides, and the lidar measures by pushing the tempered glass on the top of the box to protrude out of the shield. The present invention can obtain accurate surrounding rock change curves in real time, monitor and warn shield machine jams caused by extrusion deformation of surrounding rocks, and reduce huge economic losses caused by jamming. The device is easy to assemble and disassemble, and the overall volume is small. It adopts wireless transmission mode and is suitable for various complex geological environments.

Description

technical field [0001] The invention relates to a monitoring device for surrounding rock deformation in a shield area of ​​a shield machine, in particular to a laser radar-based real-time monitoring device for the convergence deformation of surrounding rock in the shield area of ​​a double-shield type shield machine. [0002] technical background [0003] Shield boring machine is a large-scale equipment for tunnel and subway construction. Among them, the shield-type shield machine is particularly widely used in caverns with loose soil, high ground stress and weak surrounding rock. During tunnel excavation, the surrounding rock in the shield area of ​​the shield-type shield machine will deform with the excavation. When the deformation reaches a certain level and the resistance caused by the stress of the surrounding rock acting on the shield exceeds the escape thrust of the shield machine , it will cause the shield of the shield machine to be stuck, resulting in a jamming acc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/16
CPCG01B11/16G01S7/4813G01S17/88E21D9/003E21C35/24E21D9/004E21D9/108G01S17/42G01S17/89
Inventor 许贤泽郑通徐逢秋刘泉声张晓平
Owner WUHAN UNIV
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