Prediction of the Water-Bearing Capacity of Coal Strata by Using the Macro and Micro Pore Structure Parameters of Aquifers

Accurate prediction of the water-bearing capacity aquifers is crucial for protecting surface ecological environment and ensuring safety during coal mining. In this study, a macro–micro combination was used to investigate bedrock aquifers. At micro-level, micro pore parameters various sandstones were determined through cast sheeting. macro-level, porosity water absorption rate experimentally. After that, new index weighting method proposed comprehensively evaluate sandstone. According method, in Guojiahe coalmine evaluated. The research results revealed that sandstone mainly related its connectivity, Luo’he Zhi’luo formation considerably greater than Yan’an formation. bearing strata eastern part mining area lower western area. can provide considerable money savings protect groundwater resources region.