西合煤矿10号煤层带压开采可行性评价

Feasibility Assessment of No.10 Coal Seam Mining Under Safe Water Pressure of Aquifer in Xihe Coal Mine

西合煤矿10号煤层属于奥灰水带压开采,承压水对矿井生产有较大的影响。在分析该矿的矿井水文地质条件基础上,对矿井构造导水性及煤层底板隔水性进行了评价。采用突水系数法对10号煤层进行了带压开采分区,进行了带压开采可行性评价,并提出了奥灰水的防治措施。

The mining of No. 10 coal seam belongs to mining under pressure of ordovician limestone,and the confined groundwater has great influence on the production of coal mine. Based on analysing hydrogeological condition of Xihe Coal Mine,water conductivity of structure and the water resisting property of coal seam floor were evaluated in the paper, partitions of mining with pressure were determined for No. 10 coal seam by using water bursting coefficient,feasibility assessment of mining with water pressure were carried out. Some countermeasures were also proposed about the control of the ordovician limestone.