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将轨检小车和三维激光扫描仪相结合,进行运营期的地铁隧道断面快速测量,相对传统方法,显著提高了测量效率和测量精度。介绍了Faro Focus 3D扫描仪和螺旋扫描模式,给出了坐标转换的算法和步骤、断面提取算法、断面拟合算法和特定信息的提取方法,结合具体实验对这种变形监测方法的可行性进行了分析,并对后续工作进行了展望。
The combination of rail inspection car and 3D laser scanner for rapid measurement of metro tunnel cross sections in operation period has obviously improved the measurement efficiency and measurement accuracy compared with the traditional method. The Faro Focus 3D scanner and spiral scanning mode are introduced. The algorithms and steps of coordinate transformation, the algorithm of section extraction, the algorithm of section fitting and the extraction of specific information are given. The feasibility of this deformation monitoring method Analyzed, and carried out the prospect of follow-up work.