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深井上、下山煤柱区巷道围岩应力高度集中,矿压显现剧烈,是煤矿动力灾害多发区。通过FLAC2D数值模拟软件及微震监测等对深井上、下山煤柱区巷道围岩响应特征进行研究。针对不同的开采阶段及矿压显现,提出针对性的煤柱区动力灾害控制措施。
Surrounding rocks in the upper and lower coal pillar areas of the deep shaft are highly concentrated in stress and intense in mine pressure, which is a frequent area of dynamic disaster in coal mines. Through FLAC2D numerical simulation software and microseismic monitoring, the response characteristics of surrounding rock in the upper and lower coal pillar area of deep mine are studied. According to the different mining stages and the occurrence of mine pressure, aiming at the dynamic control measures of coal pillar area dynamic disasters.