爆破卸压技术在深部煤层防治冲击地压中的应用  

Application of blasting destressing technology in preventing and controlling rock burst in deep coal seam

作　　者：宋焕虎[1] 魏辉[2] 

机构地区：[1]开滦(集团)有限责任公司唐山矿业分公司,河北省唐山市063000 [2]山东科技大学矿业与安全工程学院,山东省青岛市266000

出　　处：《中国煤炭》2015年第12期53-56,共4页China Coal

摘　　要：以唐山矿Y484工作面为例,采用爆破卸压技术对巷道进行了冲击地压防治技术的研究。在对工作面具体地质条件及冲击倾向性分析的基础上,研究了爆破前后工作面上覆岩层的应力分布情况,并结合RFPA数值模拟对比爆破卸压前后煤体的集中应力分布和能量转移范围。试验证明爆破卸压使煤体应力峰值向煤体深部转移了10 m左右,降低了巷道煤壁侧的冲击地压危险。并在工作面成功应用了爆破卸压技术,取得了较好的卸压效果。For Y484 working face of Tangshan Mine, the research on prevention and control of rock burst was carried out with blasting distressing technology. Based on analysis of geological conditions and rock burst tendency in working face, stress distribution in overlying strata before and after blasting was researched, and the concentrated stress distribution and energy transfer range before and after blasting and stress releasing were contrasted using RFPA numerical simu- lation method. Tests had proved that blasting distressing technology let the position of peak stress move towards deep part of coal about 10 m, and reduced the risk of rock burst in the coal wall side. The blasting distressing technology was applied successfully in working face and a- chieved preferable destressing effect.

关 键 词：深部巷道 爆破卸压 RFPA数值模拟 冲击地压防治 

分 类 号：TD353[矿业工程—矿井建设]