Monitoring device for mine pressure of coal mine stope

Abstract

The invention discloses a monitoring device for mine pressure of a coal mine stope. The monitoring device comprises a fixing column, a pressure equalizing monitoring device, a side monitoring device and top end monitoring devices, wherein the side monitoring device is arranged on the inner side of a roadway side plate; the fixing column is fixed in the center of the lower end surface of a roadway top plate; the lower end of the fixing column is connected with the pressure equalizing monitoring device; a vertical strip-shaped sliding groove is formed in the lower end of the fixing column; the top end monitoring devices are symmetrically arranged on the left side and the right side above the pressure equalizing monitoring device; a sliding rail is fixed on the bottom end surface of a supporting shell in the pressure equalizing monitoring device; a supporting column is connected to the sliding rail in a sliding mode; the supporting column is located on the inner side of the side monitoring device; and a point monitoring assembly is further arranged in the roadway top plate. According to the monitoring device, different pressures borne by the surfaces of the roadway top plate and the roadway side plate are monitored, so that the pressure equalizing monitoring device can collect and record the monitored pressure values.

Description

technical field [0001] The invention relates to the technical field of coal mine mining, in particular to a monitoring device for mine pressure in a coal mine stope. Background technique [0002] Before the ore body is mined, the rock mass is in a state of equilibrium. When the ore body is mined, an underground space is formed, which destroys the original stress of the rock mass, causes the stress of the rock mass to redistribute, and continues until a new balance is formed in the rock mass. In the process of stress redistribution, the surrounding rock is deformed, moved, and destroyed, thereby exerting pressure on the working face, roadway and surrounding rock. Usually, the force produced by the rock movement caused by the mining process on the supporting surrounding rock is called mine pressure. The installation and use process of the existing mine pressure monitoring device is complicated, and it is easy to be damaged and inconvenient to replace when used for a long tim...

AI Technical Summary

Problems solved by technology

The installation and use process of the existing mine pressure monitoring device is complicated, and it is easy to be damaged and inconvenient to replace when used for a long time; and it cannot be closely attached to the ore body, resulting in inaccurate mine pressure measurement; The structure is not a relatively regular structure, and the generated pressure is oriented in various directions, resulting in uneven pressure received by the pressure receiving device, which may easily cause damage to the monitoring device

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