| 一种隧道整体变形监测方法及其应用 |
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| 引用本文： | 刘绍堂, 刘文锴, 周跃寅. 一种隧道整体变形监测方法及其应用[J]. 武汉大学学报 ( 信息科学版), 2014, 39(8): 981-986. DOI: 10.13203/j.whugis20120122 |
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| 作者姓名： | 刘绍堂 刘文锴 周跃寅 |
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| 作者单位： | 1 河南工程学院土木工程学院,河南 郑州,451191;2 同济大学测量与地理信息学院,上海,200092 |
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| 基金项目： | 河南省重点科技攻关计划资助项目(122102210421);河南省教育厅科技攻关计划资助项目(2010A420001)~~ |
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| 摘 要： | 目的 提出了采用隧道多点整体监测取代传统单点监测的方法,将三维激光扫描技术应用于隧道变形监测领域,介绍了作业流程和作业中应注意的问题,讨论了点云配准和坐标转换问题,给出了应用实例。研究表明,采用ICP配准方法在隧道进行外业扫描的测站距离不能超过隧道直径,外业扫描的合理分辨率以高分辨率为宜,当扫描遮挡率过大时,为了避开障碍物影响需要在隧道中心线两侧分别扫描;采用本方法可以一次快速、全面地获取隧道表面的完整数据,克服了传统方法的不足。
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| 关 键 词： | 隧道变形监测 三维激光扫描 收敛监测 隧道变形分析 |
| 收稿时间： | 2013-01-22 |
| 修稿时间： | 2014-08-05 |
A Tunnel Overall Deformation MonitoringMethod and Its Application |
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| LIU Shaotang, LIU Wenkai, ZHOU Yueyin. A Tunnel Overall Deformation MonitoringMethod and Its Application[J]. Geomatics and Information Science of Wuhan University, 2014, 39(8): 981-986. DOI: 10.13203/j.whugis20120122 |
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| Authors: | LIU Shaotang LIU Wenkai ZHOU Yueyin |
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| Affiliation: | 1School of Civil Engineering,Henan Institute of Engineering,Zhengzhou 451191,China;2School of Surveying and Geoinformatics,Tongji University,Shanghai 200092,China |
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| Abstract: | Objective In order to applied the three-dimensional laser scanning technology to tunnel deformationfield,this paper proposed the overall tunnel deformation monitoring methods to replace the traditionalsingle-point monitoring with engineering experimental research tools.Described the operation proces-ses and pointed out what should pay attention to,discussed the point cloud registration and coordi-nates conversion problems.The study showed that the scanning stations distance can not exceed thediameter of the tunnel if ICP registration is taken,and set the reasonable scanning resolution to highresolution grade is appropriate.In order to avoid obstacles impact it is needed to scan on both sides ofthe tunnel centerline as scanning shielding rate is too large.The new method gives a fast,full accessto get the complete deformation data of the tunnel surface and overcomes the shortcomings of the tra-ditional methods. |
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| Keywords: | tunnel deformation monitoring 3Dlaser scanning convergence monitoring tunnel de-formation analysis |
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