李雅庄矿区断裂构造对地下水控制影响研究

Research on Effect of Groundwater Control in Faulted Structure of Liyazhuang Mining Area

李雅庄矿区断裂构造较为发育,断层分布广、密度大,具有近东北-西南向平行阵列式分布特征,且呈现出自西向东多个条带状构造块段;陷落柱规模小,但密度较大,呈现零散点状分布特征。矿区居于区域岩溶水强径流区,岩溶水水位高于所有开采煤层底板,矿区内太原组和奥陶系岩溶含水层富水性一般较强。因此,开采煤层存在岩溶水突水危险。通过对矿区断裂构造富水性及导水性的分析研究,表明矿区断裂构造是控制和影响地下水贮存分布的主要因素,也是矿井充水的主要途径。

The faulted structure is more development in Liyazhuang coal mine, the fault distribution is wide, high density, with nearly northeast - southwest parallel array type distribution, and present a plurality of banded structure block from west to east. Collapse column is small scale, but the density is larger, present scattered punctate distribution characteristics. The mining area is in regional karst water strong runoff zone, karst water level is higher than that of the all mining coal seam floor, Taiyuan group and the 0rdovician Karst water - bearing layer generally is strong in the mining area. Therefore, mining coal seam has karst water inrush risk. Through analysis and study of wa- ter rich and water conductivity of faulted structure in the mining area, it is indicated that the faulted structure is the main factor of control and influence of groundwater storage distribution, also is the main way of mine water filling.