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高速远程滑坡的演化机制与运动过程受控于岩体结构.以重庆市武隆县鸡尾山滑坡为例,采用地面激光扫描技术,获取岩体结构面几何信息,基于离散元数值模拟方法,考虑岩体结构特征,分析高速远程滑坡演化过程及其致灾范围.研究结果表明:(1)岩体结构特征由岩体内部发育的结构面所决定,针对点云数据开展空间几何计算与聚类分析,可以快速精细地获取岩体结构面产状信息,从而进行岩体结构面识别与组别划分;(2)将岩体结构特征评价结果导入离散元模型中,能够实现高速远程滑坡致灾范围的快速评价目的,并且取得了与实际滑动距离较为吻合的结果.
The evolution mechanism and movement process of high-speed remote landslides are controlled by the rock mass structure.With the Jimaoshan landslide in Wulong County of Chongqing Municipality as an example, the geometry information of rock mass structural plane is obtained by ground laser scanning technology. Based on the discrete element numerical simulation method, The results show that: (1) The rock mass structural characteristics are determined by the structural plane developed in the rock mass, and the spatial geometry calculation and clustering are carried out for the point cloud data (2) The result of structural feature evaluation of rock mass is introduced into the discrete element model, which can realize the effect of high-speed remote landslide-caused disaster Range of rapid evaluation purposes, and made with the actual sliding distance more consistent results.