三维激光扫描技术在隧道运营状态评价中的应用  

Application of 3D Laser Scanning Technology in the Evaluation of Tunnel Service Status

作　　者：吴乃龙[1] 王钰双 WU Nailong;WANG Yushuang(Fuzhou Investigation and Surveying Institute Co.,Ltd.,Fuzhou 350108,China)

机构地区：[1]福州市勘测院有限公司,福建福州350108

出　　处：《城市勘测》2024年第4期176-179,183,共5页Urban Geotechnical Investigation & Surveying

摘　　要：为评价地铁隧道运营状态,该文利用三维激光扫描点云数据,通过对点云数据预处理、椭圆模型拟合,结合隧道差异沉降测量成果,获取隧道结构几何尺寸变化病害;通过对隧道现状病害判读分析,得到隧道外观病害。根据病害检测成果结合隧道设计资料,对隧道结构状况和行车影响进行评价。最后,以福州地铁6号线林樟区间现状检测项目为例,结合隧道运营状态评价方法对其进行了评价。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.

关 键 词：三维激光 病害检测 差异沉降 服役评价 

分 类 号：P258[天文地球—测绘科学与技术]