1. School of Civil Engineering, Fujian University of Technology, Fuzhou, China
2. Key Laboratory of Underground Engineering, Fujian Province University, Fuzhou, China
3. Institute of Geotechnical Engineering, Fujian University of Technology, Fuzhou, China
4. School of Civil Engineering, Chongqing University, Chongqing, China
5. Key Laboratory of New Technology for Construction of Cities in Mountain Area (Chongqing University), Ministry of Education, Chongqing, China