埋深千米工作面应力异常区域冲击地压防治技术研究  

Study on prevention and control technology of rock burst in deep stress area of working face with kilometer depth

作　　者：陈洪章 

机构地区：[1]中煤集团大屯公司孔庄煤矿,江苏徐州221611

出　　处：《煤炭科技》2017年第4期40-43,共4页Coal Science & Technology Magazine

摘　　要：根据孔庄煤矿7435工作面微震数据与CT反演可知,7435工作面存在应力异常区域。随着7435工作面回采区域的不断增加,与7433工作面形成的采空区范围逐渐增大,致使7433采空区上方高位岩层发生断裂,导致应力异常区域的发生。针对此应力异常区域实施煤体爆破卸压与顶板深孔爆破卸压,现场应用后取得显著效果,为矿井安全有效生产奠定了基础。According to the microseismic data and CT inversion of 7435 working face, it is found that the 7435 working face has the abnormal stress area. With the increase of the mining area on 7435 working face, the goaf area formed by 7433 working face gradually increases, resulting in the fracture of the high rock layer above the 7433 goaf, which leads to the occurrence of the stress abnormal area. In view of the coal seam blasting pressure relief and roof deep hole blasting pressure relief in the abnormal stress area, remarkable effect has been achieved after field application, which lays a foundation for safe and effective production of coal mine.

关 键 词：微震 煤体爆破 深孔爆破 支护 

分 类 号：TD324[矿业工程—矿井建设]