Real-time observation device for surrounding rock displacement of underground engineering

Abstract

The invention relates to the field of underground engineering monitoring and measuring devices and particularly provides a real-time observation device for surrounding rock displacement of underground engineering. The real-time observation device for surrounding rock displacement of underground engineering comprises a displacement transfer rod and an internal anchoring end connected with the displacement transfer rod; the displacement transfer rod is also connected with a displacement data acquisition device inside the surrounding rock; the displacement data acquisition device inside the surrounding rock comprises a bracket, a laser transmitting and receiving vertical column and a mirror device; the mirror device is hinged between the bracket and the left end of the displacement transfer rod; the laser transmitting and receiving vertical column comprises a laser transmitter, a laser sensor, a display and a length scale arranged along the longitudinal direction; the laser sensor and the display are in signal connection with a microprocessor respectively; the microprocessor is in signal connection with a wireless communication module; and the wireless communication module is in wireless signal connection with a monitoring host. The internal displacement data of the surrounding rock of the underground engineering can be monitored accurately and in real time, the displacement data can be transmitted to the monitoring host in a remote monitoring room, and an engineering person can perform real-time monitoring conveniently.

Description

technical field [0001] The invention relates to the field of underground engineering monitoring and measuring devices, in particular to a real-time observation device for underground engineering surrounding rock displacement. Background technique [0002] Due to the excavation of underground caverns or tunnels and other underground works, the stress change and corresponding deformation of the surrounding rock are different at different depths from the free surface. The internal displacement measurement of the surrounding rock, that is, the observation of the relative displacement between the surface of the surrounding rock and the internal measuring points, can better reflect the stress state of the surrounding rock, the disturbance and relaxation range of the rock mass. Through this displacement measurement, the relationship between the displacement of the surrounding rock and the depth can be determined, the range of the relaxation zone, strength drop zone and elastic zone...

AI Technical Summary

Problems solved by technology

[0003] At present, the internal displacement gauges of surrounding rocks used in the industry are divided into two types: electrical measuring and mechanical. Due to the combined influence of various factors, the stability is poor, the embedding is difficult and the cost is high

For other types of mechanical internal displacement gauges, the internal anchoring ends are mostly wedge seam type, expansion shell type, support type, etc., which have disadvantages such as complicated process, high cost, and easy damage.

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