基于移动激光扫描技术的隧道断面变形检测方法  

Tunnel section deformation detection method based on mobile laser scanning technology

作　　者：叶龙杰 张卡[1,2,3,4,5] Ye Longjie;Zhang Ka(Key Laboratory of Virtual Geographic Environment(Nanjing Normal University),Ministry of Education,Nanjing 210023,China;School of Geography,Nanjing Normal University,Nanjing 210023,China;Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application,Nanjing 210023,China;State Key Laboratory Cultivation Base of Geographical Environment Evolution(Jiangsu Province),Nanjing 210023,China;Key Laboratory of Urban Land Resources Monitoring and Simulation,Ministry of Natural Resources,Shenzhen 518034,China)

机构地区：[1]南京师范大学虚拟地理环境教育部重点实验室,江苏南京210023 [2]南京师范大学地理科学学院,江苏南京210023 [3]江苏省地理信息资源开发与利用协同创新中心,江苏南京210023 [4]江苏省地理环境演化国家重点实验室培育建设点,江苏南京210023 [5]自然资源部城市国土资源监测与仿真重点实验室,深圳518034

出　　处：《矿山测量》2021年第3期52-57,78,共7页Mine Surveying

基　　金：江苏省自然科学基金项目(BK20201372);自然资源部城市国土资源监测与仿真重点实验室开放基金(KF-2019-04-003);国家自然科学基金(41631175);国家重点研发计划(2017YFB0503500,2017YFB0503504);江苏高校优势学科建设工程资助项目(164320H116)。

摘　　要：文中提出了基于移动激光扫描技术的隧道断面变形检测方法。通过对移动激光扫描车获取的隧道点云数据进行环片提取,并利用改进多边形裁剪算法统计隧道环片的拉伸度及挤压度指标,结合环片各角度形变值综合检测隧道变形状况。采用成都地区的圆形盾构隧道数据进行了方法的验证,实验结果证实了该方法的可行性和有效性。In this paper,the tunnel section deformation detection method was proposed based on the mobile laser scanning technology.Through the ring segment of the tunnel point cloud data obtained by the mobile laser scanning vehicle was extracted,the improved polygon cutting algorithm was used to calculate the stretch and extrusion index of the tunnel ring segment,and the deformation of the tunnel was detected comprehensively by combining the deformation value of each angle of the ring segment.Method was validated by using the circular shield tunnel data in Chengdu area,and the experimental results confirmed the feasibility and effectiveness of the method.

关 键 词：隧道 移动激光扫描 断面提取 改进多边形裁剪 变形检测 

分 类 号：P234[天文地球—摄影测量与遥感]