摘要
针对淮北矿业集团海孜煤矿762综采工作面顶板岩层存在巨厚火成岩侵入的特殊覆岩结构,对工作面开采过程中可能存在的冲击矿压危险性进行了分析与评价,并利用SOS微震监测系统对工作面开采全过程中火成岩的运移、破断状态进行了监测。研究结果表明:火成岩断裂释放的能量较低,没有对工作面的安全开采构成极大威胁。
A special overlying strata structure, extremely thick igneous rock lie over 762 full-mechanized mining face in Haizi Colliery of Huaibei Mining Group. Rock-burst danger in mining was analyzed and evaluated. Displacement, failure state of igneous rock was monitored by SOS micro-seismic system. Results showed that energy released from igneous rock was low and didn＇t pose a large threat to safe mining.
出处
《煤矿开采》
北大核心
2012年第3期83-85,共3页
Coal Mining Technology
基金
全国优秀博士论文作者专项基金资助项目(2010044)
教育部新世纪优秀人才支持计划项目(NCET-10-0769)
江苏省"333"高层次人才培养工程资助项目(BRA2011183)
关键词
火成岩
冲击矿压
危险性评价
微震监测
igneous rock
rock-burst
danger evaluation
micro-seismic monitoring
