198 1- 1984 studied in bridge, tunnel and structural engineering of southwest jiaotong university and obtained a master's degree in engineering;
1986- 1992 On-the-job Ph.D. student in Southwest Traffic Bridge, Tunnel and Structural Engineering, doctor of engineering; He studied under Professor Qian Dongsheng, a famous bridge expert in China;
1994- 1995 went to the department of civil engineering in Imperial College London, London, England to carry out postdoctoral research;
1997 ~ 1998 as the project manager of foreign international road reconstruction and maintenance projects.