通过对大城勘查区水文地质条件分析,认为影响煤层开采主要直接充水含水层为各主要煤层顶板和底板砂岩裂隙含水层,奥灰和新近系含水层等为间接充水含水层;第四系底部含水层可做为今后井田开发的主要供水水源。 Based on the analysis of the hydrogeological conditions in the Dacheng Prospecting Area, it is concluded that the main direct water-filled aquifers that affect the coal mining are the aquifers of the fractured sandstone roof of the main coal beds and the bottom sandstone, and the indirect aquifers of the Ordovician and Neogene aquifers. The Quaternary The bottom aquifer can be used as the main source of water for future field development.