一种隧道整体变形监测方法及其应用  

A Tunnel Overall Deformation Monitoring Method and Its Application

作　　者：刘绍堂[1] 刘文锴[1] 周跃寅[2] 

机构地区：[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

出　　处：《武汉大学学报（信息科学版）》2014年第8期981-986,共6页Geomatics and Information Science of Wuhan University

基　　金：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)~~

摘　　要：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。In order to applied the three-dimensional laser scanning technology to tunnel deformation field, this paper proposed the overall tunnel deformation monitoring methods to replace the traditional single-point monitoring with engineering experimental research tools. Described the operation processes and pointed out what should pay attention to, discussed the point cloud registration and coordinates conversion problems. The study showed that the scanning stations distance can not exceed the diameter of the tunnel if ICP registration is taken, and set the reasonable scanning resolution to high resolution grade is appropriate. In order to avoid obstacles impact it is needed to scan on both sides of the tunnel centerline as scanning shielding rate is too large. The new method gives a fast, full access to get the complete deformation data of the tunnel surface and overcomes the shortcomings of the traditional methods.

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 

分 类 号：P258[天文地球—测绘科学与技术]