板集煤矿F_(33)断层岩体工程性质及导水性研究

Research on Rock Engineering Properties and Transmissivity of F_(33) Fault in Banji Coal Mine

板集煤矿煤系地层上覆新生界松散含水层,下伏太原组灰岩岩溶水,F_(33)断层切入太原组灰岩地层。若该断层导水性较强,巷道掘进至断层时,将会造成突水事故。采用抽水试验和压水试验相结合的方法,定性和定量地研究了F_(33)断层的导水性,结果表明该断层渗透性较弱、导水性较差。

Coal measure strata is overlying Cenozoic loose aquifer and underlying the Taiyuan formation limestone karst water in Banji mine. F33 fault cuts into the Taiyuan formation limestone strata. If the fault has strong transmissivity, it will cause water inrush accident when tunneling to fault. Gives qualitative and quantitative research on transmissivity of F33 fault, by using the method of pumping test and water pressure test in combination. The results show that the permeability of the fault is weak, and the transmissivity is poor.