Stability evaluation of rock collapses in Nangang village with 3D laser scanning
Rock collapse is the most frequent type of sudden geological hazards in Beijing area. Mostly developed on high-steep slopes, this kind of collapses is difficult to investigate through the traditional contact survey method. In this paper, the three-dimensional (3D) laser scanning is used to investigate Nangang rock collapse in Mentougou District, Beijing. By combining the point cloud data and high-definition image data, the 3D space model of the Nangang collapse is constructed. On this Basis, the de-velopment characteristics of structural planes in the study area are analyzed, and three typical dangerous rock masses are selected for characteristic parameters. These parameters provide data support for the stability analysis of dangerous rock masses. Rockfall software is used to simulate and analyze the movement track of these typically dangerous rock masses, and the danger posed by rock collapses to nearby houses is studied. The results of this work provide important references for the exploration and stability evaluation of rock collapses in Beijing.
3D laser scanningNangang collapsedangerous rock massstability evaluation
万方数据
维普
