黄陵二号煤矿充水因素分析

通过对黄陵二号煤矿充水因素的分析,结合矿井实际涌水量,认为矿井在开采延安组2号煤层时,延安组中部含水层为矿井的直接充水含水层,直罗组下段含水层为矿井主要的间接充水含水层;上部的洛河组砂岩水是矿井井筒充水的主要水源,也是矿井充水的间接充水含水层;矿井的主要充水通道为开采沉陷裂隙,充水方式为顶板进水。最后指出,该矿井开采2号煤层的最大隐患是直罗组下段砂岩顶板突水和井筒洛河组砂岩涌水。

Huangling No.2 Coalmine Water Filling Factor Analysis

Based on the Huangling No.2 coalmine water filling factor analysis,combined with actual water inflow,and considered that the direct water filling aquifer is the middle Yanan Formation aquifer,while the lower Zhiluo Formation aquifer is the indirect water filling aquifer during the mining of No.2 coal seam in the formation.The upper part Luohe Formation sandstone water is the main source of shaft water inflow,also the indirect water filling aquifer of the coalmine.The main water filling channel is mining subsidence fractures,water filling mode is coal roof intake.Finally,the ultimate hidden troubles will be the coal roof water bursting come from lower Zhiluo Formation sandstone and shaft water inflow from Luohe Formation sandstone during the mining of No.2 coal seam.