论文部分内容阅读
我国有190多座煤炭城市,遍布全国15个省、自治区。这些城市在生产大量煤炭的同时,大多要进行矿井疏于工作,排出大量矿井废水。如双鸭山矿区,年产煤炭1020万吨,排矿井废水1960万吨,吨煤排水量2吨;鸡西矿区吨煤排水量3.5吨;焦作矿区的吨煤排水量达60吨。煤炭生产向地下延深及疏干排水,导致地下水位下降、地面变形、地下水断流,使一
China has more than 190 coal-based cities in 15 provinces and autonomous regions across the country. While producing large amounts of coal in these cities, most of the cities are going to carry out mine neglect work and discharge large amounts of mine waste water. Such as Shuangyashan mining area, with an annual output of 10.2 million tons of coal, waste mine drainage 19.6 million tons, tons of coal displacement of 2 tons; Jixi mine tons of coal displacement 3.5 tons; Jiaozuo mine tons of coal displacement of 60 tons. The deepening of coal production and drainage of dry drainage, resulting in the decline of groundwater levels, surface deformation, groundwater flow, so that one