矿山微震监测数据应用与研究

随着采深增大,某矿山地压问题逐渐凸显,开采中出现顶板冒落、矿柱片帮等岩体动力灾害,同时存在周边矿山越界开采活动,不明采掘作业影响矿岩结构系统稳定性。为此矿山建立了一套微震监测系统,通过数据处理辨别并定位微震与爆破事件。以某时段监测数据为基础,总结了岩体破裂活动时空活动规律,分析了采区围岩的应力分布特征,掌握了越界开采作业时间与位置,本监测分析方法可在今后矿山地压管控中应用与推广。

Application and research of mine microseismic monitoring data

In a mine, with the increase of mining depth, the problem of ground pressure gradually becomes prominent, and dynamic disasters such as roof caving, pillar wall and other rock mass occur during mining. At the same time, there are cross-border mining activities of surrounding mines, and unknown mining operations affect the stability of rock structure system. Therefore, the microseismic monitoring system was established to identify and locate microseismic and blasting events through data processing. Based on the monitoring data of a certain period of time, the temporal and spatial activity law of rock mass fracture activity was summarized, the stress distribution characteristics of surrounding rock in the mining area was analyzed, and the time and location of cross-border mining operation was mastered. This monitoring and analysis method can be applied and popularized in the mine pressure control in the future.