Application of Water-retaining Mining in Mine Confined Water Treatment
In view of the serious problem of water resources destruction caused by coal mining,the mining depth increases gradually,the floor limestone confined water has been a major hidden danger to the safety of coal mining.Based on the topography and geomorphology of confined mine,water system environment,geological structure type,overlying strata structure composition and coal seam occurrence conditions,"three equivalent"water-retaining mining,water disaster prevention and control was taken as the cut-in point of water-retaining mining,the shallow surface water,roof water and floor water were considered as a whole,tightly around the"shallow water quality and quantity,roof water resources utilization,floor water in situ protection"this main line.To form a water-conserving mining model system that can be replicated and popularized,and to form a set of water-conserving mining technology system suitable for similar mines,which is"safe,efficient,economical and in harmony with the ecological environment",to realize the double goals of safe mining and water-preserved mining,to build the green mining(water-preserved mining)project demonstration base of confined limestone water mine,and to provide feasible guidance for water-preserved mining in China.
lithologywater conservation miningaquiferthree equivalentequivalent water resistancetarget horizondirectional technology
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