科研之友
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摘要
With the development of coal exploitation intensifying, the surface starts to collapse in large area; the problems on geo-ecological environment become more serious. When studying the conditions of mining collapse, the distribution of soil water in unsaturated zone and the phenomenon of freeze-thaw erosion are important. Through theoretical analysis, this paper discusses the adverse effects of coal mining subsidence on the local ecology. Then, in the melting process of frozen soil in subsidence area, this paper studied the changes of freeze-thaw erosion made by soil moisture change. It is found that the influence of mining subsidence on the variability of soil water is great. The areas with low content of soil water are located in the collapse pits in the collapse area, which proves that the collapse pits and holes on the surface will promote the occurrence of freeze-thaw erosion. Finally, based on the effects above, that is, the dynamic process, this paper puts forward the prevention and control measures in order to reduce the damage of freeze-thaw erosion in the coal mining subsidence area in china.
- 出版日期2017-2
- 单位内蒙古农业大学
