地质科技通报2025，Vol.44Issue(4)：330-339,10.DOI:10.19509/j.cnki.dzkq.tb20230667
基于点云数据的高陡岩质边坡结构面识别与稳定性分析
Recognition of structural planes and stability analysis of highly steep rock slopes on 3D point cloud data
摘要
Abstract
[Objective]The distribution of structural planes plays a significant role in determining the engineering and mechanical properties of rock masses.Accurately obtaining information of structural planes is crucial for analyzing the characteristics and stability of rock masses.[Methods]3D point cloud data of a highly steep rock slope were acquired via 3D laser scanning technology.After filtering and preprocessing of the point cloud data,the open-source program Discontinuity Set Extractor(DSE)was then used to semiautomatically recognize and classify the point cloud data,obtaining key parameters and clustering information of the structural planes of rock slopes,such as attitude,trace length,and spacing.By fitting the point cloud clustering information,a probability distribution model was created,and a discrete fracture network(DFN)model was established.Furthermore,a 3D block discrete element model of the steep slope was developed via the"Rhino-Griddle-3DEC"integrated modeling method,which is based on point cloud data.The model investigated the stability of the slope and potential failure areas.[Results]Under gravity conditions,the safety factor of the entire slope is approximately 1.5,and the potentially unstable area is the dangerous rock mass located at the top of the slope.[Conclusion]Therefore,the structural plane parameters identified by this method can better reflect the engineering properties of the rock mass,providing important guidance for the analysis and evaluation of the stability of highly steep rock slopes.关键词
高陡岩质边坡/点云数据/结构面识别/离散裂隙网络模型/稳定性分析Key words
highly steep rock slope/point cloud data/structural plane recognition/discrete fracture network/stability analysis分类
天文与地球科学引用本文复制引用
奚望,陈宜伟,张文广,边林松,门林,梁鹏飞,周博..基于点云数据的高陡岩质边坡结构面识别与稳定性分析[J].地质科技通报,2025,44(4):330-339,10.基金项目
中铁十九局集团有限公司项目"基于BIM数字孪生技术的岩溶地区桥梁桩基精细化设计与智慧施工"(0231242361) （0231242361）
