Coal mine tunnel support normalization auxiliary monitoring device and system based on anchor rod linkage

Abstract

The invention discloses a coal mine tunnel support normalization auxiliary monitoring device and system based on anchor rod linkage, and relates to the technical field of coal mine tunnel support. According to the invention, a conductive stay wire in a tensioned state is sequentially connected among a plurality of anchor rods, the conductive stay wire comprises stranded wire bodies which are distributed among the plurality of anchor rods in a staggered manner, the conductive stay wire forms a closed loop at the position of the anchor rod at the tail end, and a loop wire outlet end and a wire inlet end of the conductive stay wire are jointly connected to a main processing module; and a main fixing base body is connected to an exposed rod of the anchor rod in a matched and reinforced mode, and side fixing rods are fixedly and symmetrically arranged on the two sides of the main fixing base body. According to the method, standard electric energy information is collected when the tensioned electric conduction stay wire is installed, state comparison, analysis and judgment are conducted when any anchor rod in a loop in the electric conduction stay wire is abnormal subsequently, linkage type and spreading type multi-anchor-rod-point rock-soil state monitoring is formed by arranging the electric conduction stay wire loop in a targeted mode, and the overall safety monitoring of the roadway is realized.

Description

technical field [0001] The invention belongs to the technical field of coal mine roadway support, and in particular relates to a normalized auxiliary monitoring device and system for coal mine roadway support based on bolt linkage. Background technique [0002] Underground mining is the main method of coal mining in my country. Underground mining requires a large number of tunnels to be excavated underground. Using tunnel support to keep the tunnel smooth and the surrounding rock stable is of great significance to the construction and production of coal mines. The basic purpose of supporting the roadway is to ease and reduce the movement of surrounding rock, so that the section of the roadway will not be excessively reduced, and at the same time prevent the scattered and damaged surrounding rock from falling. [0003] In the support structure of the coal mine roadway, the bolt is the most basic part of the roadway support in the contemporary coal mine. The bolt strengthens t...

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Problems solved by technology

[0004] However, the rock and soil around the roadway are affected by some unstable factors, and a certain amount of deviation occurs in the surrounding rock of the roadway, which easily leads to a certain amount of state and position changes of the bolt along with the surrounding rock. Although some knowledge of the local surrounding rock and anchor There will be a certain amount of state and position changes of the pole, but there will be a big safety hazard for the overall support of the roadway

[0005] There are also some bolts that are not stable enough during installation. When there are factors such as mining and blasting in the roadway or around the rock and soil, the anchor rods that are not installed firmly will also shift a small amount, which will also affect the current position of the roadway. Maintain overall safety performance

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