Instant rockburst monitoring and early warning system and method

Abstract

The invention discloses an instant rockburst monitoring and early warning system and method. The system comprises an infrasound microphone, a central processing module, a data acquisition unit and a microcomputer, the infrasound microphone is movably arranged on the to-be-monitored working face and used for receiving rockburst inoculation infrasound signals of the to-be-monitored working face andthe vicinity of the to-be-monitored working face and converting the rockburst inoculation infrasound signals into electric signals; the central processing module is connected with the infrasound microphone and is used for amplifying and filtering the electric signal after receiving the electric signal; the data acquisition unit is connected with the central processing module and is used for converting the electric signal processed by the central processing module into a digital signal; and the microcomputer is connected with the data acquisition unit and is used for analyzing and processing the digital signal after receiving the digital signal and sending an alarm instruction according to a processing result. The movable monitoring infrasound microphone is used for collecting rock mass fracture state infrasound signals in the rock burst inoculation process, more accurate monitoring data can be obtained, and rock burst can be accurately monitored.

Description

technical field [0001] The invention belongs to the technical field of rockburst monitoring, and in particular relates to an instant rockburst monitoring and early warning system and method. Background technique [0002] With the rapid development of my country's industrial economy, the shallow resources of domestic metal minerals tend to be exhausted, and many mines have made plans and strategies to explore ore deep. With the continuous increase of mining depth, the possibility, frequency and intensity of rockbursts in high-stress areas increase simultaneously. The occurrence of rock burst has caused the surrounding rock to slide and bounce off the rock shelf, which will not only cause a delay in the construction period, but also seriously affect the lives and property of underground personnel and the safety of instruments and equipment. [0003] The "immediate" rockburst is the stress jump and energy concentration of the local surrounding rock during the process of redist...

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Problems solved by technology

[0006] Embodiments of the present invention provide an instant rockburst monitoring and early warning system and method, which are used to at least solve the "instant" rockburst that occurs in a short period of time. If a long-term acoustic emission and microseismic monitoring and early warning system is established at a fixed position in the tunneling direction , as the excavation face advances, the prediction accuracy of the monitoring system becomes lower and lower; if a short-term acoustic emission and microseismic monitoring and early warning system is established in different positions with the excavation progress, then there will be problems caused by the difficulty in recovering the sensors. Monitoring cost-prohibitive technical issues

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