激光扫描与传统测量方法在隧道收敛的对比验证
胡国金1夏才初2倪世昊1吴廷3李航天3
Comparative Validation of Laser Scanning and Traditional Measurement Methods for Tunnel Convergence
HU Guojin1XIA Caichu2NI Shihao1WU Ting3LI Hangtian3
-
作者信息:1.绍兴文理学院土木工程学院，312099，绍兴
2.宁波大学岩石力学研究所，315211，宁波
3.上海市建筑科学研究院有限公司，200032，上海
-
Affiliation:1.School of Civil Engineering, Shaoxing University of Arts and Sciences, 312099, Shaoxing, China
2.Institute of Rock Mechanics, Ningbo University, 315211, Ningbo, China
3.Shanghai Building Research Institute Co., Ltd., 200032, Shanghai, China
-
关键词:
-
Key words:
-
DOI:10.16037/j.1007-869x.2025.03.019
-
中图分类号/CLCN:U231；TP3
-
栏目/Col:研究报告
摘要:
［目的］传统单点测量方法在地铁隧道监测中虽具有高精度优势，但因其耗费大量人力、物力与财力，无法实现经济效益的最大化，已难以满足现代化地铁隧道的监测需求。因此，研究一种既能满足快速测量需求又能保证测量精度的新方法显得尤为重要。［方法］以上海市轨道交通收敛监测项目为例，提出了一种对比验证的思路。通过利用人工全站仪单点测量的高精度优势，反向验证自动化三维激光扫描仪的测量精度。这一方面可以确定特定型号的激光扫描仪在特定工况条件下的具体精度，另一方面也进一步验证了三维激光扫描技术在地铁隧道变形监测中的可行性。同时，三维激光扫描仪所获取的点云数据经过处理后，可生成隧道平铺展开图，用于分析隧道渗漏水等病害。通过双向对比验证，较好地平衡了三维激光扫描技术与传统测量技术各自的不足。虽然三维激光扫描技术能连续获取隧道点云信息，但在单点测量精度上仍不及传统测量技术。两者的结合使用能进一步提高数据的可靠性。［结果及结论］基于上海市轨道交通8号线、15号线的数据验证试验结果表明：在分辨率1/8、质量3X模式下，FAROS70激光扫描仪精度的平均偏差为4.24%，可靠性最低为93.63%，满足地铁变形监测的要求。
Abstracts:
［Objective］ Although traditional single-point measurement methods offer high accuracy in metro tunnel monitoring, their high labor, material, and financial costs limit economic benefit maximization, difficult to meet the monitoring needs of modern metro tunnels. Therefore, it is crucial to develop a new method that satisfies the need for rapid measurement while ensuring accuracy. ［Method］ Using the convergence monitoring project of Shanghai rail transit as a case study, a comparative verification method is proposed. The high-accuracy advantage of manual total station single-point measurements is used to reversely validate the measurement accuracy of automated 3D laser scanners. On one hand, the specific accuracy of a particular laser scanner model under specific conditions can be determined; on the other hand, the feasibility of 3D laser scanning technology for metro tunnel deformation monitoring is further verified. Meanwhile, the point cloud data obtained by the 3D laser scanner, after processing, can generate tunnel unfolded maps, useful for analyzing tunnel issues such as water leakage. This bidirectional comparative validation could effectively balance the limitations of 3D laser scanning technology and traditional measurement methods. Though the 3D laser scanning technology provides continuous tunnel point cloud information, its single-point measurement accuracy is still inferior to traditional methods. Combining both methods can further improve the reliability of the data. ［Result & Conclusion］ Validation tests based on data from Shanghai Rail Transit Line 8 and Line 15 demonstrate that under the condition of a resolution of 1/8 and a quality mode of 3X, the FARO S70 laser scanner presents the average deviation of 4.24% in accuracy, with a minimum reliability of 93.63%, meeting the requirements for metro deformation monitoring.
- 上一篇: 高铁物流运输模式及其可行性
- 下一篇: 城市轨道交通车辆开放型智慧实训中心的设计与实现
过刊浏览
资料下载
友情链接