中文摘要：

为了探查母杜柴登煤矿2-2中煤顶板砂岩含水层的水文地质条件，采用井下放水试验以获取渗透系数。根据临时煤仓放水试验数据资料，分别采用稳定流和非稳定流计算渗透系数，并通过对比分析，最终确定其渗透系数，为下一步计算矿井涌水量提供基础数据。

英文摘要：

In order to explore the hydro-geological conditions of the sandstone aquifer in 2-2 coal seam roof in Muduchaideng Mine, the permeability coefficient was obtained by underground dewatering tests. Based on the dewatering test data of the temporary bin, the steady flow and unsteady flow were respectively used to calculate the permeability coefficients, and through the contrast analysis, the permeability coefficient was finally determined, which thus provided the basic data for the calculation of mine water inflow.