露天矿闭坑环境地质灾害危险性分区研究

基于露天矿闭坑前后地质灾害的分析，总结出我国露天煤矿开采至闭坑前环境地质问题与灾害主要有3个方面：① 露天煤矿开采将形成深大的矿坑及废弃矸石排土场.② 露天采矿形成的矿坑边坡及排土场边坡，由于地质构造、边坡岩体、地表水与地下水作用，采矿工程活动等原因诱发一系列诸如滑坡、塌陷、泥石流、周边地面变形、地裂缝等突发性或缓变性地质灾害.③ 露天矿开采引发生态环境恶化及缓变性的灾害.提出了露天矿闭坑环境地质灾害危险性分区的方法.并根据以上研究以抚顺西露天煤矿闭坑（矿坑）环境地质灾害危险性分区为实例进行了分区，得到了符合实际的结果.

Environmental geological disasters dangers s tudy by zones after the ending of mining in open pit coal mine

Based on the analysis for the geological disasters in front and behind the ending of the mining in open pit coal mine， summarized the disasters of the environment geology problem， mainly have three aspects:① The deep big pit and dump due to open cut mining will form. ② As a result of the geologic structure， the rock mass in slope， the function to the surface water and groundwater， mining engineering activities， and other factors， open cut mining formed the pit slope and the dump slope induced a series of sudden or slow geological disasters such as sliding， to cave in， mud-rock flow， surrounding ground deformation. ③ Open cut mining induced deterioration of the ecological environment and the slow change characteristic disasters. Put forward the methods used in environmental geological disasters danger by zones after the ending of mining in open pit coal mine.  According to above study， taking by zones of environmental geological disasters danger of Fushun Western Open-pit Coal Mine after the ending of mining as an actual case， obtained results conform to the actual.