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矿山边坡包括露天矿边坡、尾矿库坝体边坡和排土场边坡。我国有露天矿山约7万座,随着露天矿采剥及采场不断延深,会形成高陡边坡,滑体规模逐渐变大,滑坡风险越来越高。我国有尾矿库约1.2万座,且多数下游人口密集,随着尾矿库坝体不断增高,库容日益扩大,事故风险不断升高,一旦溃坝后果严重。我国有排土场约10万余座,大多靠近居民区和耕地,当受大气降雨或地表水浸润,易发生滑坡、泥石流等灾害,危及矿山和周围群众安全。
Mine slope including open pit slope, dam tailings and dump tailings slope. There are about 70,000 open-pit mines in our country. As the open-cut mines and stopes continue to be deepened, high-steep slopes will be formed. The size of the slides will gradually increase and the risk of landslides will become higher and higher. There are about 12,000 tailings reservoirs in our country, and most of the downstream are densely populated. With the increasing tailings dam body, the storage capacity is expanding day by day, and the risk of accidents is continuously increasing. Once the dam failure results serious. There are about 100,000 dumpsites in our country. Most of them are close to residential areas and cultivated land. When subjected to rainfall or surface water infiltration, landslides and mudslides are easy to occur and endanger the safety of mines and surrounding communities.