Analysis of Tunnel Deformation Characteristics Based on 3D Laser Scanning

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.