1. School of Geological Engineering and Geomatics, Chang’an University, Xi’an 710054, China
2. Departamento de Ingeniería Civil, Escuela Politécnica Superior de Alicante, Universidad de Alicante, 03080 Alicante, Spain
3. Key Laboratory of Western China’s Mineral Resources and Geological Engineering, Ministry of Education, Xi’an 710054, China
4. Key Laboratory of Ecological Geology and Disaster Prevention, Ministry of Natural Resources, Xi’an 710054, China