1. Doctor, School of Civil Engineering, Chongqing Jiaotong Univ., Chongqing 400074, China; Lecturer, School of Civil Engineering and Architecture, Chongqing Univ. of Science and Technology, Chongqing 401331, China.
2. Professor, School of Civil Engineering, Chongqing Jiaotong Univ., Chongqing 400074, China.
3. Director, Engineering Monitoring Dept., Chongqing Survey Institute, No. 6 Qingzhu East Rd., Dazhulin St., Liangjiang New Area, Chongqing 401121, China (corresponding author).
4. Master, School of Civil Engineering, Chongqing Jiaotong Univ., Chongqing 400074, China.