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报废煤矿造成的不良现象和过程是近10年来采煤区域最迫切的问题。不良现象和过程主要是指地下水。最主要的是:地面被淹没和成为沼泽地,地下水和地表水化学成分的变化,巷道上部
The bad phenomena and the process caused by scrapping the coal mines are the most urgent problems in the mining area in the past 10 years. Adverse phenomena and processes are primarily groundwater. The main thing is: the ground is submerged and become wetlands, groundwater and surface water chemical composition changes, the upper part of the roadway