三维激光扫描仪在隧道工程施工中的应用

Application of 3D laser scanner in tunnel construction discussion

为提高隧道现代化施工技术水平,实现隧道施工开挖、支护、衬砌各阶段施工场景模型化、可视化,利用三维激光扫描仪对隧道三维激光点云数据进行采集、裁剪、去噪、重采样等处理,并应用于隧道施工各环节,为优化开挖钻爆方案、调整预留变形量、优化初支混凝土配合比、杜绝二衬欠厚等质量通病提供了准确、可靠的依据,同时,为隧道工程数量和成本控制、施工质量和变形监测提供了新的技术手段。

In order to improve the technical level of modernizing tunnel construction and realize the modeling and visualization of the construction scenes of tunnel excavation,support and lining,the 3D laser scanner is used to collect,cut,denoise and resample the tunnel 3D laser-point cloud data such that the harvested data are to be applied into all aspects of tunnel construction.Thus,an accurate and reliable basis has been provided for optimizing the drilling and blasting scheme,adjusting the reserved deformation,optimizing the initial concrete blending ratio,and eliminating the unqualified thickness of the second lining.Meanwhile,new technical means have also been supplied for tunnel engineering quantity and cost control,construction quality and deformation detection.