ARES-5/E地音监测系统在冲击地压监测预警中的应用

Application of ARES-5/E Ground Sound Monitoring System in Monitoring and Early Warning of Ground Pressure

基于ARES-5/E地音监测系统,通过对40205掘进工作面运输顺槽在一段时间内的能量变化值及结合现场实际情况进行了研究分析。研究结果表明:在地音监测能量出现"驼峰"式的变化特点时,表明巷道围岩内部已处于活化状态,应及时对工作面采取预警措施;巷道产生大的动力现象是滞后于巷道围岩内部能量最高点,表现出由"高频低能"向"低频高能"的状态转化;通过12月28日-12月31日的能量数据分析,提前4个班进行有效预警,并采取相应措施,为工作面冲击地压防治提供技术理论支撑。

Based on the ARES-5/E geophone monitoring system, a research and analysis is performed on the energy change value of the transport trough along the 40205 tunneling face over a period of time and the actual situation on site. The research results show that: when the hump-like change characteristic of the ground sound monitoring energy appears, the inside of the surrounding rock of the roadway is already in an activated state, and early warning measures should be taken on the working face;the large dynamic phenomenon of the roadway lags behind the surrounding rock The highest point of internal energy, showing the transition from "high-frequency and low-energy" to "low-frequency and high-energy";through energy data analysis from December 28 to December 31, effective early warning was performed 4 shifts in advance, and corresponding measures were taken provide technical theoretical support for the prevention and control of working surface impact pressure.