微震监测在煤矿开采优化及灾害防治中的应用  

Application of microseismic monitoring in coal mining optimization and disaster prevention

作　　者：张会军[1] 杨磊[1] 

机构地区：[1]天地科技股份有限公司开采设计事业部,北京市朝阳区100013

出　　处：《中国煤炭》2016年第3期24-27,86,共5页China Coal

基　　金：国家自然科学基金资助项目(51474128);天地科技股份有限公司技术创新基金资助项目(KJ-2015-TDKC-05)

摘　　要：微震监测技术是一种先进的动力灾害实时监测技术,目前在我国众多冲击地压矿井得到应用,但其主要用于动载、矿震的监测,作用并没有得到充分的发挥。针对这一问题,通过成功实例研究了微震监测技术在煤矿开采优化及灾害防治中的应用,研究结果表明,微震监测可以为工作面开采确定合理的推进度,以此来控制围岩活动及矿压显现;微震事件的分布从一定程度上揭示了工作面煤岩破裂范围及应力分布特征.为卸压过程、支护设计以及煤柱留设等工程提供了准确的指导依据;应用微震6值、η值、M_m值评价冲击危险取得了较好的效果。Microseismic monitoring technology was an advanced real-time monitoring technology for dynamic disasters,currently it had been applied in many mines with rock burst in our country,but it was mainly used for monitoring dynamic loads and mine earthquakes,its functions had not been fully exploited.Aiming at the problem,the authors studied the applications of microseismic monitoring technology in coal mining optimization and disaster prevention through successful examples.The research results showed that microseismic monitoring could determine a reasonable advance progress for working face mining,so it could control the surrounding rock activities and strata behaviors.The distribution of microseismic events revealed the rock fracture range and stress distribution characteristics in working face to a certain extent,provided exact guidance for pressure relief,supporting design and coal pillar setting.The b-value,η-value and M_m-value of microseismic had achieved good effects in impact danger evaluation.

关 键 词：微震监测 开采优化 灾害防治 冲击危险评价 

分 类 号：TD324[矿业工程—矿井建设]