基于无人机倾斜摄影技术的核电厂高陡边坡地质编录方法研究

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中图分类号：P231；P642.2 文献标志码：A 文章编号:1003-5168(2025)24-0118-06

DOI:10.19968/j.cnki.hnkj.1003-5168.2025.24.020

Research on the Geological Mapping Method of High and Steep Slopes of Nuclear Power Plant Based on UAV Oblique Photogrammetry Technology

CHANGXiaolei (China Nuclear Power Engineering Co.,Ltd. Zhengzhou Branch, ZhengZhou 45oo52,China)

Abstract:[Purposes] To address the issues of low efficiency,high risk,and great difficulty in measurement when manually mapping high and steep slopes,as well as the inability to measure some inaccessible structural planes, which leads to incomplete acquisition of slope structural plane parameters and affects the final slope stability calculation results,a method for efciently obtaining structural plane parameters is proposed.[Methods] Taking a certain rock slope of a nuclear power plant as an example,the application and workflow of unmanned aerial vehicle (UAV) oblique photography technology in geological mapping are described.The point cloud data and real three-dimensional model of the slope are obtained through the UAV oblique photography method. Combined with manual structural plane identification, the trace length,spacing,and lithology of the structural planes are obtained on the real threedimensional model. The dip and dip direction of the structural planes are automaticall calculated using the point cloud coordinate information of the structural planes.[Findings] 28 sets of structural plane parameters and the spatial distribution map of the structural planes were obtained.By comparing with the manually measured structural plane parameters and the manually compiled distribution map,the errors of the structural plane parameters obtained by the two methods are within the acceptable range,and the spatial distribution of the structural planes is almost the same.[Conclusions] The geological mapping of high and steep slopes in nuclear power plants can be caried out using the real three-dimensional model obtained by UAV oblique photography technology.The accuracy is reliable and the precision is beter than manual mapping.To some extent, it can replace manual mapping work.

Keywords:unmanned aerial vehicle oblique photography; structural plane attitude; point cloud model; geological mapping

0 引言

在核电厂工程建设中，为使核安全相关的建筑物坐落于稳定的地基上，多需要对核电建设场地进行广挖、深挖以揭露良好的基础持力层，因此，高陡岩质边坡稳定性评价问题也随之出现。（剩余8894字）