1. Department of Geotechnical Engineering Chongqing Jiaotong University Chongqing China
2. State Key Laboratory of Continental Dynamics, Department of Geology Northwest University Xi'an China
3. Chongqing Bureau of Geology and Minerals Exploration Chongqing China
4. College of Civil Engineering Chongqing University of Arts and Sciences Chongqing China
5. China Railway First Survey and Design Institute Group Co. Ltd. Xi'an China