煤矿深部采区冲击矿压典型案例及防治探讨  

Study on Typical Cases and Prevention of Rock-burst in Deep Working Area of Coal Mine

作　　者：郭兴明[1] 刘振江[2] 

机构地区：[1]山西大同大学煤炭工程学院,山西大同037003 [2]六盘水师范学院矿业工程系,贵州六盘水553004

出　　处：《煤炭技术》2017年第4期177-179,共3页Coal Technology

摘　　要：基于某矿区两矿发生的冲击矿压案例,利用理论分析、数值模拟、微震监测分析,提出针对性的深部冲击灾害控制措施。结果表明:该矿区冲击危险性整体较高,主要影响因素为大采深、煤柱、强冲击倾向性等;矿震使处于极限条件下的上下山煤柱区应力增加打破平衡状态诱发冲击矿压;现场微震监测揭示了煤柱区矿震空间演化规律,验证了结论的合理性。Analysises typical cases of rock-burst which occurred in two coal mine of a mining area by theoretical analysis and numerical simulation and microseismic monitoring system, meanwhile proposes targeted controlling measures of dynamical disasters in deep mine. The integral rock burst hazard of the mining area is relatively serious, of which main influence factors include large mining depth and coal pillar and strong impact tendentious etc.The dynamic loads disturbance makes the roadway stress increase and break balance state which leads to the occurrence of floor rock-burst in downhill roadway coal pillar area under ultimate conditions,namely the rock-burst mechanism induced by dynamic and static load superposition that the high static loads play a dominant effect while strong dynamic loads play a induced function.The field microseismic monitoring reveals spatial evolution rules of mine tremor in uphill and downhill coal pillar area, which verifies reasonableness of conclusions.

关 键 词：深部采区 典型冲击矿压 矿震 

分 类 号：TD324[矿业工程—矿井建设]