基于无人机贴近摄影技术的高陡边坡形变监测方法研究

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中图分类号：TP277；TQ571 文献标识码：A 文章编号：1001-5922（2025）12-0295-04

Research on deformation monitoring method of high and steep slope based on UAV close-to-photography technology

LIU Kunjin （Wuzhou Surveying and Mapping Geographic Information Institute，Wuzhou 543O02，Guangxi China）

Abstract： Inorder to study the deformation monitoring method of high and steep slope based on UAVclose-to-photogrammetry technology，this paper proposes a high and steep slope deformation monitoring method combining UAV close-to-photogrammetry technology and 3D model reconstruction method based on SFM algorithm.Firstly， the UAV close-to-photogrammetry technology isused to colect the sequence images of monitoring high and steep slopes，and then the SFM algorithm uses the two-dimensional images collcted by the UAV to reconstruct the three-dimensionalmodel.Finally，the experimentalresultsshow thatdue tothehastyconstructionof theexperimental environment，there are many error points in the final model，buttheerror value isverysmall.The maximum error values in the three directions of X，Y and Z do not exceed 1.O cm，indicating that the three-dimensional coordinate solutionofthecheckpointbasedontheSFMalgorithmisveryaccurate.Itisfeasibleandefective tocombine the UAVclose-to-photogrammetry technologyand the three-dimensional model reconstruction method based onthe SFMalgorithm.Subsequently，the same operation was performed on the high-steep slopeat diferenttimes to obtain three-dimensional modelingat diferent time periods.Bycomparing the modeling beforeand after，itcan beseen whetherthe high-steep slope is deformed，and the deformation monitoring of the high-steep slope is realized.

Key words： UAVclose-to-photography;highand steep slope deformation monitoring;SFM algorithm;three-dimensional modeling

随着各种大型基础设施的开发与建设，高陡边坡的规模也在不断扩张，而对高陡边坡项目进行安全监测，判断其是否发生形变以及形变程度，可以提前避免灾害事故发生，是保证在施工过程中工作人员安全、项目完成后设施安全、人民财产安全的关键。（剩余4900字）