【摘要】 藏东南地区由于其特殊的地质、气候条件,滑坡灾害频发。为评估藏东南地区天摩沟内部边坡的稳定性,采用无人机飞行数据对研究区进行三维建模,将三维建模结果导入CAD截取多个剖面进行极限平衡法数值分析。结果表明无人机三维建模可以在人迹罕至或不具备人工现场勘查条件的地区快速形成三维影像,具有较高的效率和准确性;将无人机影像的边坡精细化建模技术应用于边坡稳定性分析,通过对多个断面的模拟,可以更快速的反映边坡的稳定性情况。更多还原

【Abstract】 Due to the special geological and climatic conditions, landslide disasters frequently occur in southeastern Tibet. In this paper, a three-dimensional modeling was conducted based on the images of an unmanned aerial vehicle to determine the stability of the middle slope of the Tianmo gully in Bomi County. The obtained data were imported into the interception section of a CAD system for performing numerical analysis using the limit balance methods. The results show that the three-dimensional modeling of UAV can quickly form three-dimensional images in areas that are inaccessible or do not have the conditions for manual on-site investigation with high efficiency and acceptable accuracy. In this paper, the refined slope modeling technology of UAV images is also applied to slope stability analysis. Through the simulation of multiple sections, the stability of the slope can be reflected quickly.更多还原