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Shield attitude-adjustable laser target continuous measurement system

A technology of shield attitude and laser target, which is applied in mining equipment, earthwork drilling, tunnels, etc., can solve the problems of large measurement error, inability to achieve continuous measurement, and easy damage to the front floor.

Active Publication Date: 2021-05-28
CCFEB CIVIL ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this guiding system is that the light spot is easy to be irregular, the post-processing of the image is more difficult, and the front pad is easy to be damaged, resulting in a slightly larger measurement error; moreover, in the process of shield tunneling, the distance between the fixed laser target and the total station will become larger and larger. The farther away, the laser target will not be able to receive the laser signal after measuring for a period of time, so it needs to be shut down and moved. Therefore, the conventional laser target method cannot realize continuous measurement during shield tunneling, which affects the efficiency of measurement and tunneling

Method used

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  • Shield attitude-adjustable laser target continuous measurement system
  • Shield attitude-adjustable laser target continuous measurement system
  • Shield attitude-adjustable laser target continuous measurement system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A shield attitude adjustment laser target continuous measurement system, please refer to Figure 1-Figure 3 , including a PLC controller 11, a navigation computer system 10, a moving laser target 2 set on the shield 8 in the shield machine, a rearview prism 7 set on the tunnel segment 6, and a gyroscope set in the supporting system 9 behind the shield machine Total station 5, alarm device 12; Wherein, mobile laser target 2 comprises laser receiving device 202, signal processing device 205, the laser gyroscope 207 that is connected with signal processing device 205 and quartz pendulum accelerometer 208, is arranged on laser receiving device Convex lens 201 between 202 and signal processing device 205; Signal processing device 205 comprises imaging mechanism 204, inclinometer 206; Mobile laser target 2 is connected with navigation computer system 10 by data line, and gyro total station 5 is by data line and navigation computer system 10 connection;

[0043] The gyro tota...

Embodiment 2

[0053] The working process of the shield posture adjustment laser target continuous measurement system of the present invention is as follows:

[0054] (1) Please refer to figure 1 , during the shield excavation process, the backsight prism 7 is fixed on the tunnel segment 6, and at the beginning of the measurement, the geodetic coordinates of the backsight prism 7 (X 1 ,Y 1 ,Z 1 );

[0055] (2) See image 3 , the laser information (laser beam) sent by the gyro total station 5 shoots to the rear-view prism 7, and after the laser information returns through the rear-view prism 7, the gyro total station 5 converts the returned laser signal into a digital signal and transmits it to the navigation computer system 10, the navigation computer system 10 calculates the geodetic coordinate (X 2 ,Y 2 ,Z 2 );

[0056] (3) Please refer to Figure 1-Figure 3 , the gyro total station 5 rotates 180 ° to search for the moving laser target 2, and sends the laser information (laser bea...

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Abstract

The invention discloses a shield attitude-adjustable laser target continuous measurement system. The system involves a PLC, a navigation computer system, a mobile laser target, a rearview prism and a gyroscopic total station, and is characterized by further comprising an alarm device; and the mobile laser target comprises a laser receiving device, a signal processing device, and a laser gyroscope and a quartz pendulum accelerometer which are connected with the signal processing device. According to the system, the laser gyroscope and the quartz pendulum accelerometer are arranged in the mobile laser target, so that when the total station cannot receive a return signal of the rearview prism, a shield tunneling machine can be continuously measured and navigated, the shield tunneling machine does not need to be stopped to move the station, and thus the measuring and tunneling efficiency can be improved.

Description

technical field [0001] The invention belongs to the technical field of shield tunneling automatic guidance, and in particular relates to a laser target continuous measurement system for shield attitude adjustment. Background technique [0002] The shield method is one of the most advanced construction methods for constructing underground tunnels. [0003] With the rapid development of my country's economy, the process of urbanization is accelerating, and the scale of cities is also increasing. As a result, the requirements for shield tunneling technology are also increasing. Tunnel shield machine is a kind of large-scale equipment specially used for tunnel construction. It concentrates the technology of many disciplines at the same time, such as: machinery, hydraulic pressure, material, control, measurement, etc. It is a kind of equipment with very complicated operation principle. [1] . During the construction process of the shield machine, while controlling the stability...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/00
CPCE21D9/003
Inventor 张胥吴波孙文涛黄仁蒙国往谢铁军周志强何彭黄宗辉邹广庚董波
Owner CCFEB CIVIL ENG
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