单家村煤矿834工作面顶板深孔预裂爆破研究与应用  

Research and Application of Deep Hole Pre-splitting Blasting for the 834 Working Face Roof in Shanjiacun Coal Mine

作　　者：刘帅 刘晋歌 李建 Liu Shuai;Liu Jinge;Li Jian(Qufu City Emergency Management Bureau,Qufu 273100,China)

机构地区：[1]曲阜市应急管理局,山东曲阜273100

出　　处：《山东煤炭科技》2025年第4期36-40,46,共6页Shandong Coal Science and Technology

摘　　要：为解决单家村煤矿834工作面煤层顶板冲击地压难题,工作面顶板采取深孔预裂爆破技术,释放顶板岩体能量,实现改变煤岩体的承载结构,降低煤岩体的承载能力。在834工作面进风顺槽布置初次来压2个、首次见方2个、应力异常区域2个共6个钻孔,回风顺槽布置初次来压1个、首次见方1个共2个钻孔,进行预裂爆破,有效地缓解煤岩体应力集中,减小冲击地压发生的可能性,实现工作面的安全回采,有利于促进类似条件矿井冲击地压防治技术的扩展与提升。In order to solve the difficult problem of coal seam roof rock burst in the 834 working face of Shanjiacun Coal Mine,deep hole pre-splitting blasting technology is adopted for the roof of the working face to release the energy of the roof rock mass,change the bearing structure of the coal rock mass,and reduce the bearing capacity of the coal rock mass.A total of 6 boreholes are arranged in the 834 working face's air inlet crossheading:2 boreholes for first weighting,2 boreholes for initial square,and 2 boreholes for stress abnormal areas.A total of 2 boreholes are arranged in the return air crossheading:1 borehole for first weighting,and 1 borehole for initial square.Pre-splitting blasting is carried out to effectively reduce stress concentration in the coal rock mass,reduce the possibility of rock burst occurrence,and achieve safe mining of the working face.This is conducive to promoting the expansion and improvement of rock burst prevention and control technology in mines with similar conditions.

关 键 词：预裂爆破 冲击地压 弹性能 应力集中 回采 

分 类 号：TD235.33[矿业工程—矿井建设]