1. Northwest Research Institute Co. Ltd. of C.R.E.C, Lanzhou, China
2. Key Laboratory of Disaster Prevention and Mitigation in Civil Engineering, Lanzhou University of Technology, Lanzhou, Gansu, China
3. Key Laboratory of New Technology for Construction of Cities in Mountain Area, School of Civil Engineering, Chongqing University, Chongqing, China
4. Faculty of Architecture and Civil Engineering, Huaiyin Institute of Technology, Huaian, China