摘要
以九采区二水平上部87层右二片回采工作面过断层为例,介绍了回采工作面过断层时,断层上山巷道顶板预应力支护技术及所取得的经济效益。
Taking passing faults at right No.2 face in No.87 coal seam,No.2 level uphill,in No.9 mining area,as an example,the roof pre-stressed support technology of faults uphill roadways,and its economic effect are introduced.
出处
《煤炭技术》
CAS
北大核心
2009年第5期99-101,共3页
Coal Technology
关键词
断层上山
断层交面线
预应力锚杆
补强锚索
fault uphill
cross-surface line of fault
pre-stressed bolt
cable reinforcement
