基于三维激光扫描的隧道变形特征分析  

Analysis of Tunnel Deformation Characteristics Based on 3D Laser Scanning

作　　者：魏小佳[1] 黄润秋[1] 裴向军[1] 韩祥森[1] 

机构地区：[1]成都理工大学地质灾害防治与地质环境保护国家重点实验室,四川成都610059

出　　处：《水电能源科学》2015年第2期111-114,共4页Water Resources and Power

基　　金：国土资源部公益性行业专项项目(201211055);四川省科技创新团队项目(2011JTD012)

摘　　要：鉴于地震条件下二古溪隧道坡体震裂损伤情况,再加上降雨和蓄水的耦合作用,导致坡体出现大变形,造成坡脚二古溪隧道挤压、剪切破坏的问题,基于三维激光扫描技术获取隧道点云影像特征,掌握了隧道全长变形情况,得到隧道变形量值。对比多次扫描得到的隧道变形数据,并分析其影响因素,结果表明,该研究为隧道的变形监测提供了一种方法和手段。According to the shattered damage of slope for Erguxi tunnel under the seismic conditions,the coupling effect of rainfall and water leads to large deformation of slope.And the Erguxi tunnel at slope toe was squeezed and appeared shear failure.Based on 3Dlaser scanning technology,the image feature of tunnel point-cloud is got and the overall length deformation of tunnel is acquired as well as the deformation value of tunnel is determined.The development of tunnel deformation is obtained through comparing multiple scan data.Furthermore,the influencing factors are analyzed.Therefore,the study provides a new method for tunnel deformation monitoring.

关 键 词：隧道 损伤 三维激光扫描 挤压 对比 

分 类 号：U459.2[建筑科学—桥梁与隧道工程]