THE APPLICATION OF THREE-DIMENSIONAL LASER SCANNING TECHNOLOGY IN THE ROCK MASS STRUCTURE RESEARCH OF DARUI RAILWAY HIGH STEEP SLOPE

Three-dimensional laser scanning technology is a new virtual replication topographic technique, which can perform remote non-contact measurement. The high-steep slope crossing both sides of Lantsang River of Darui Railway was investigated to demonstrate the application of the technology in the rock mass structure of Darui high-steep slope. The inVestigation involved the design of station locations, obtaining point cloud data, extracting fissure data, and statistical analysis of the structural plane. Using three-dimensional laser scanning technology, the semi-steep structural planes of developing side slopes were obtained. The results show that the out-dip structural plane of the left bank is the fourth group in its preferred orientation, and the structural plane of the third group in the preferred orientation of the right bank has an out-dip axial side slope, with the structural plane of the fourth group being the out-dip upstream broadside slope. The results can be used as reference to solve challenges faced by similar projects.