A roadway mine pressure monitoring and early warning method

Abstract

The invention discloses a roadway mine ground pressure monitoring and early warning method. Two items of data of the stress of a bolt cable of a roadway roof and a separation layer value of the roadway roof are monitored in real time, analysis is conducted by combining the two items of data, arithmetic of a plurality of related indexes of the two items of data is conducted to identify hidden danger of a roof fall roadway, and the hidden danger grade of the roadway roof fall is evaluated. By effectively combining roof separation layer monitoring with bolt cable stress monitoring, roadway mine ground pressure monitoring and early warning are conducted, the reliability of roadway roof fall early warning is greatly improved, and more accurate and more concrete data can be provided for a roadway supporting and protecting design and roadway parameter optimization.

Description

technical field [0001] The invention belongs to the technical field of mine roadway early warning, and in particular relates to a roadway mine pressure monitoring and early warning method. Background technique [0002] In recent years, my country's mining industry has developed rapidly, and the level of mechanization and management has gradually improved. However, mine safety issues have not been solved well. Among them, roadway roof fall accidents account for a high proportion. Therefore, early warning and monitoring of roadway roof fall It is very important to monitor the occurrence of roadway mine pressure. At present, the monitoring and early warning of the mine pressure in the roadway are mainly through the monitoring of the roof separation layer or the force monitoring of the bolt and anchor cable, but the roof separation layer monitoring alone cannot specifically understand the support of the anchor rod and the anchor cable state, and monitoring the force of the bolt ...

AI Technical Summary

Problems solved by technology

At present, the monitoring and early warning of roadway mine pressure are mainly through two methods of monitoring the roof separation layer or the force monitoring of the anchor bolt and cable, but the roof separation monitoring alone cannot specifically understand the support of the anchor rod and the anchor cable In addition, monitoring the force of anchor rods and cables alone cannot understand the situation of roof separation. Both of them are not ideal for the reliability of roadway roof fall warning, and they cannot better understand the mine pressure in roadways.

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