Department of Geotechnical Engineering;
Tongji University;
Shanghai;
200092;
China;
Department of Civil Engineering and Engineering Mechanics;
University of Arizona;
Tucson;
AZ;
85721;
USA;
Department of Hydraulic Engineering;
Tongji University;
Shanghai;
200092;
China;
Rock mass; Discontinuity; Three-dimensional point clouds; Trace mapping;