深部高应力异常集中区冲击矿压动态防治实践  

Practice of rockburst dynamic prevention in deep high-stress concentration district

作　　者：陆菜平[1,2] 刘海顺[3] 刘彪[1] 范军[1] 

机构地区：[1]中国矿业大学矿业工程学院,江苏徐州221116 [2]中国矿业大学煤炭资源与安全开采国家重点实验室,江苏徐州221008 [3]中国矿业大学理学院,江苏徐州221116

出　　处：《煤炭学报》2010年第12期1984-1989,共6页Journal of China Coal Society

基　　金：国家重点基础研究发展计划(973)项目(2010CB226805);中央高校基本科研业务费专项资金资助项目;"青蓝工程"资助项目

摘　　要：针对采动煤岩体的应力和储能的"时-空"演化特征,以徐州三河尖煤矿深部高应力异常集中的9202工作面及其轨道巷为试验区,提出了冲击矿压的动态防治技术体系:①分析冲击危险的地质和开采因素,特别是垂直应力梯度的分布规律,进行冲击矿压危险的"时-空"预区划;②针对不同的冲击危险区,制订相应的煤岩体强度弱化参数;③利用微震、电磁辐射以及钻屑法等多参量监测手段及时检验卸压治理的效果,如果检测指标超标,则继续进行卸压解危,直至指标明显突降。防治过程始终遵循"危险监测—卸压解危—效果检验"的动态循环。这一技术目前已在我国多个高冲击危险工作面进行推广应用。The ＂time-space＂ evolution of stress and energy accumulated in the mining coal and rock materials is dynamic,taking the deep high-stress concentration 9202 working face and its headentry as test zone,the rockburst dynamic prevention technology was put foreword,which was followed that：① Analysis on the geological and mining factors of rockburst danger,particularly the distribution law of vertical stress gradient,and the ＂time-space＂ distribution of rockburst danger was pre-zoned;② According to the different dangerous district,the appropriate design and parameters of coal and rock strength weakening was developed;③ Using the multi-parameter monitoring methods such as microseism（MS）,electromagnetic emission（EME） and drilling bits,the effect of rockburst prevention was checked.If the test indexes exceeded the critical value,the relieve-shots was continued until the indexes monitored obviously dropped.Rockburst prevention process always followed the dynamic cycle of danger monitoring-relief prevention-effects check.Now,the technology was popularized and applied in many high rockburst dangerous districts in China.

关 键 词：深部 高应力集中区 冲击矿压 动态防治 

分 类 号：TD324.2[矿业工程—矿井建设]