Department of Civil Engineering;
Xi’an Jiaotong University;
Xi’an;
Shaanxi;
710049;
China;
Shaanxi Engineering Research Center of Soil Body;
China Electronic Research Institute of Engineering Investigation and Design;
Xi’an;
Shaanxi;
710054;
China;
Hoek-Brown(HB)strength criterion; Three-dimensional(3D)strength criterion; Intermediate principal stress; Failure envelope;