摘要
炮采工作面过断层大致有两种方法:一是断层落差较小时进行平推硬过,即是采取挑顶破底,平推硬过;二是断层落差较大时进行跳压回采,即是提前做好跳压切眼,回采至断层处后直接收作,在跳压切眼重新安装工作面,跳过断层继续向前回采。上述两种方法都存在一定的弊端,现提出分段"Z"型留巷和跳压反采的回采方式,对该方式进行了系统分析,投入到68南翼煤柱工作面中应用,并取得了明显的经济效益。
There are two ways of crossing faults in blasting face：one is horizontal advance and forced cross by ripping and floor damage in low -drop fault and another is direct finishing after stoping to the fault ,resettling working face at step-pressure cut laid in advance and stoping forward passing through fault .Aiming at the dis‐advantages of the two above-mentioned methods ,the author present the method of crossing fault by Z -type retaining roadway and step-pressure stoping ,which has been put into use at working face of 68 -Nanyi coal pillar with great economic benefits .
出处
《江西煤炭科技》
2015年第1期25-26,共2页
Jiangxi Coal Science & Technology
