水土保持研究2024，Vol.31Issue(4)：59-66,85,9.DOI:10.13869/j.cnki.rswc.2024.04.013
黄土高原半干旱区淤地坝安全监测方法
Safety Monitoring Method of Check Dams in Semi-arid Area of the Loess Plateau
摘要
Abstract
[Objective]The aims of this study are to monitor the deformation degree of check dam after flood season in semi-arid area of the Loess Plateau and find the abnormal condition of check dam timely and accurately,and to provide a more scientific and reliable technical method for the safety monitoring of check dams in the semi-arid region of the Loess Plateau.[Methods]The two check dams were scanned by a 3D laser scanner,and high-density,high-precision,continuous and complete 3D point cloud data were obtained.Then,the point cloud data were imported into HD Scene software for point cloud pre-processing,and finally,modeling and comparative analysis were performed by Cloud Compare and Geomagic Control software.[Results]The comparison of point cloud models between the two periods showed that the offset of a large number of point clouds in the Donggou check dam model was less than 0.05 cm,and a small number of point clouds reached the maximum offset of 0.2 cm.The offset of a large number of point clouds in the Xigou check dam model was less than 0.1 cm,and a very small number of point clouds reached the maximum offset of 0.4 cm.The precipitation in flood season accounted for 77.34％of the whole year.After flood season,both of the two check dams had small settlement and horizontal displacement,but the deformation of Xigou check dam was more obviously affected by water pressure component.[Conclusion]The application of 3D laser scanning technology to the safety monitoring of check dams in semi-arid areas of the Loess Plateau can quickly and accurately know whether the deformation occurs after flood season and the degree of deformation,which makes the safety monitoring of check dams more accurate and reliable.关键词
淤地坝安全监测/点云/3D偏差位移量/坝体形变/司家沟流域Key words
safety monitoring of check dam/point cloud/3D deviation displacement/dam body deformation/Sijiagou watershed分类
农业科技引用本文复制引用
高雅玉,黄枭,宋玉,何文博,华荣祥,高金芳,吕喜玺..黄土高原半干旱区淤地坝安全监测方法[J].水土保持研究,2024,31(4):59-66,85,9.基金项目
甘肃省重点研发计划(22YF7FA165,18YF1NA031) （22YF7FA165,18YF1NA031）
高端外国专家引进计划(22JR10KA006) （22JR10KA006）
甘肃省重点人才计划(甘组通字[2019]39号) （甘组通字[2019]39号）
甘肃省水利科学试验研究及推广计划(甘水建管发[2024]78、[2023]67号、[2022]59号). （甘水建管发[2024]78、[2023]67号、[2022]59号）
