Tunnel back break detection method and device, terminal equipment and storage medium

The invention discloses a tunnel back break detection method and device, terminal equipment and a storage medium, and belongs to the technical field of building construction, and the method comprises the following steps: carrying out the three-dimensional laser scanning of a tunnel, and obtaining point cloud data; simplifying the point cloud data, and reversely constructing an actual measurement BIM model of the construction site based on the simplified point cloud data; and performing chromatographic visualization comparison on the actually measured BI model and the tunnel design BI model to calculate the tunnel back break degree. According to the method, point cloud data obtained through three-dimensional laser scanning is subjected to reverse modeling, the model is directly fused and compared with a BI model, and an actual point cloud model in the construction stage and the BI model in the design stage are subjected to comparative analysis. Therefore, the position of the back-break is accurately positioned