中文摘要：

地下的采矿活动和降雨在斜坡变丑的开始和复活上有潜在的重要影响，特别在陡峭的岩石斜坡上。在这份报纸，用分离元素方法(UDEC ) ，数字模拟被执行在采矿活动和降雨中调查变丑特征和陡峭的岩石斜坡的失败机制。一个陡峭的岩石斜坡数字模型在重庆城市里在 Wulong 区域基于案例研究被创造，中国。岩石团的机械参数被 situ 大小和实验室大小决定了。监视系统的一个初步的地点被认识到，瞄准得到结构运动和在最重要的断绝的不稳定的岩石群众的压力。根据基于监视数据校准的数字模型的意见，操作条件的四种类型被设计在陡峭的岩石斜坡的变丑上揭示采矿挖掘和极端降雨的效果。

英文摘要：

Underground mining activities and rainfall have potential important influence on the initiation and reactivation of the slope deformations,especially on the steep rock slope. In this paper,using the discrete element method（UDEC）,numerical simulation was carried out to investigate deformation features and the failure mechanism of the steep rock slope under mining activities and rainfall. A steep rock slope numerical model was created based on a case study at the Wulong area in Chongqing city,China. Mechanical parameters of the rock mass have been determined by situ measurements and laboratory measurements. A preliminary site monitoring system has been realized,aiming at getting structure movements and stresses of unstablerock masses at the most significant discontinuities. According to the numerical model calibrated based on the monitoring data,four types of operation conditions are designed to reveal the effect of mining excavation and extreme rainfall on the deformation of the steep rock slope.