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从露天矿形成边坡开始,由于岩体应力原始平衡条件被破坏,就使边坡存在变形、破坏以至滑坡的潜在因素。滑坡事故对露天矿生产来说,轻则影响采掘工作的正常进行;重则造成人身设备事故,恶化采掘技术经济指标,缩短露天矿的开采年限,甚至使整个矿山生产中断。1970年,美国西南部某矿发生一次严重的边坡破坏事故,极大地破坏了生产;在南美某矿,一次严重的滑坡事故,使该矿的铁路运输系统干线遭受破坏而中断了全矿生产;澳大利亚的一个大型露天铁矿,由于长达1公里的边坡破坏,使其采矿工作中断了三年多。
Starting from the formation of open pit mine slope, due to the original balance of rock mass stress conditions are destroyed, so that the slope deformation, damage and potential factors of landslides. Landslide accidents affect the normal operation of excavation for open-pit mines; heavy cause of personal equipment accidents, deterioration of mining technology and economic indicators, shortening the mining life of open-pit mines, or even the entire mine production interruption. In 1970, a serious slope failure in a mine in the southwestern United States severely damaged production; a major landslide incident in a mine in South America disrupted the rail transport system mainline at the mine and interrupted the entire mine production ; A large open-pit iron ore mine in Australia, which has interrupted its mining work for more than three years due to the destruction of a 1-kilometer slope.