| 三维激光扫描进行隧道变形探测的可行性研究 |
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| 引用本文： | 丁鸽,陈艳华,燕立爽,彭健. 三维激光扫描进行隧道变形探测的可行性研究[J]. 城市勘测, 2022, 0(1): 127-130. DOI: 10.3969/j.issn.1672-8262.2022.01.029 |
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| 作者姓名： | 丁鸽 陈艳华 燕立爽 彭健 |
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| 作者单位： | 济南市勘察测绘研究院,山东 济南 250013,济南市房产测绘研究院,山东 济南 250001 |
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| 摘 要： | 针对隧道区域变形特点,研究利用三维激光扫描技术进行隧道变形探测的可行性。根据基准面与隧道内壁点云法向量及地面的关系,获取点云数据的切片,然后应用改进的ICP算法对不同测站切片数据进行配准,使用KNNS搜索算法得出隧道可探变形区域的最小面积。实验结果表明:在明确区域变形临界值的情况下,利用三维激光扫描技术可以对隧道的变形区域进行探测,对于隧道变形监测有一定的指导意义。
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| 关 键 词： | 三维激光扫描 切片提取 KNNS算法 ICP算法配准 可探变形区域 |
Research on Feasibility to Detect the Tunnel Deformation Based on 3D Laser Scanning |
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| Ding Ge,Chen Yanhua,Yan Lishuang,Peng Jian. Research on Feasibility to Detect the Tunnel Deformation Based on 3D Laser Scanning[J]. Urban Geotechnical Investigation & Surveying, 2022, 0(1): 127-130. DOI: 10.3969/j.issn.1672-8262.2022.01.029 |
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| Authors: | Ding Ge Chen Yanhua Yan Lishuang Peng Jian |
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| Affiliation: | (Ji’nan Institute of Surveying and Mapping Survey,Ji’nan 250013,China;Ji’nan Real Estate Institute of Surveying and Mapping,Ji’nan 250001,China) |
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| Abstract: | Based on the zonal deformation characteristics of tunnels,the method of using three-dimensional laser scanning technology for detecting the tunnel deformation has been proposed.This paper gets the point cloud slice,according to the relationship between the datum plane,the normal vector of the tunnel inwall point cloud and the ground surface.Then it gets the slice data of different stations fitted using the improved ICP algorithm,and based on the KNNS search algorithm explores the minimum area of the tunnel deformation zone.The experimental result shows that in the case of a clear regional deformation threshold,3D laser scanning technology can detect the deformation zone of the tunnel and has certain guiding significance for tunnel deformation monitoring. |
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| Keywords: | 3D laser scanning slice extraction KNNS algorithm ICP algorithm registration detectable deformation zone |
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