Model construction method and system for tunnel pipe gallery

The invention discloses a model construction method and system for a tunnel pipe gallery, and relates to the technical field of building modeling, and the method comprises the following steps: obtaining the point cloud data of the tunnel pipe gallery, and constructing a next generation model of the tunnel pipe gallery according to the point cloud data; preprocessing the point cloud data, and drawing a topographic map of the tunnel pipe gallery according to the preprocessed point cloud data; and determining a vector polygon of the tunnel pipe gallery contour according to the topographic map and the electronic contour map of the tunnel pipe gallery, and adjusting details of the next generation model according to the vector polygon to obtain a target model. The application defines. According to the method, the next generation modeling technology is used for modeling the tunnel pipe gallery, the problem that high-precision operation of cable equipment dissection and scene simulation cannot be carried out by combi