Application of 3D Laser Scanning Technology in the Evaluation of Tunnel Service Status
To evaluate the service status of subway tunnels,this article uses 3D laser scanning point cloud data,preprocesses point cloud data,fits elliptical models,and combines differential settlement measurement results of tunnels to obtain changes in geometric dimensions of tunnel structures and diseases. By analyzing the current situation of tunnel diseases,the external defects of the tunnel are identified. Based on the results of disease detection and tunnel design data,evaluate the structural condition and driving impact of the tunnel. Finally,taking the current situation detection project of Linzhang section of Fuzhou Metro Line 6 as an example,combined with the evaluation method of tunnel service status,it was evaluated.
3D laserdisease detectiondifferential settlementservice evaluation
NETL
NSTL
万方数据
