移动三维激光扫描系统在地下隧道工程病害检测中的应用  

Application of Mobile 3D Laser Scanning System in Underground Tunnel Engineering Disease Detection

作　　者：胡玉祥 赵亚波 张洪德 韩磊 孟庆年 HU Yuxiang;ZHAO Yabo;ZHANG Hongde;HAN Lei;MENG Qingnian(Qingdao Surveying&Mapping Institute,Qingdao 266032,China;West Coast Geomatics Center of Qingdao Co.,Ltd.,Qingdao 266000,China;Qingdao Engineering Research Center of Geographical Information of Underground Space,Qingdao 266032,China)

机构地区：[1]青岛市勘察测绘研究院,山东青岛266032 [2]青岛市西海岸基础地理信息中心有限公司,山东青岛266000 [3]青岛市地下空间地理信息工程研究中心,山东青岛266032

出　　处：《测绘与空间地理信息》2022年第12期230-232,235,共4页Geomatics & Spatial Information Technology

摘　　要：随着环境变化及结构劣化,地下隧道工程投入运营后不可避免会出现病害。如何快速准确获取地下隧道工程裂缝、渗漏水、管片错台等病害信息成为工程重点和难点。作为实景复制技术,三维扫描能够对扫描场景进行高精度的还原,基于多源传感器获取的地下隧道点云数据,借助智能识别算法及人工判读,进行深度挖掘分析,可以很好获取相关位置病害信息。以青岛地铁2号线为例,借助移动三维激光扫描(螺旋扫描)+线扫描相机+其他传感器等设备,探讨外业采集和数据处理过程关键技术方法,分析其在地下隧道工程病害检测及原始数据存档方面的综合应用,最终建立地下隧道三维信息数据库,实现快速检测和评估,从而预测隧道病害发展趋势,减少病害带来的损失,为类似项目提供了良好借鉴。With the change of environment and the deterioration of structure,the diseases of underground tunnel are inevitable after it is put into operation.How to quickly and accurately obtain the disease information of underground tunnel engineering,such as cracks,leakage,segment dislocation and so on,has become the focus and difficulty of the project.As a real scene replication technology,3D scanning can restore the scanning scene with high accuracy.Based on the point cloud data of underground tunnel obtained by multisource sensors,with the help of intelligent recognition algorithm and artificial interpretation,the depth mining analysis can obtain the relevant location disease information.Taking Qingdao Metro Line 2 as an example,with the help of mobile 3D laser scanning(spiral scanning)+line scanning camera+other sensors and other equipment,this paper discusses the key technical methods of field acquisition and data processing,analyzes its comprehensive application in underground tunnel engineering disease detection and original data archiving,and finally establishes the underground tunnel 3D information database to realize rapid detection and evaluation.The prediction of the development trend of tunnel disease and the reduction of the loss caused by the disease provide a good reference for similar projects.

关 键 词：地下隧道工程 病害 三维激光扫描 多源传感器 技术方法 三维信息数据库 

分 类 号：P225.2[天文地球—大地测量学与测量工程]