基于奇异值分解法的古山矿微震系统监测能力优化

Optimization of monitoring ability of microseismic system in Gushan Mine based on singular value decomposition method

微震监测系统已成为古山煤矿矿山动力灾害的主要监测手段。为了保证微震系统定位和能量计算的准确性,采用奇异值分解法对古山煤矿微震监测系统的现用台网监测能力进行评价,从而发现了微震系统定位误差较大区域,由此制定监测系统优化方案,并对微震系统的台网布置进行优化。最后采用现场爆破试验对优化结果进行校验,结果表明微震系统的监测误差明显下降。

Microseismic monitoring system had been the main monitoring method of mine dynamic disaster in Gushan Coal Mine. To ensure the system localization and energy calculation, singular value decomposition was adopted to evaluate the monitoring ability of current network of microseismic system, which had found out the area with larger location error, so monitoring system optimum proposal for network layout was worked out. Field blasting tests for verifying the optimizing results showed that the monitoring error of microseismic system declined obviously.