1. Engineer, Institute of Defense Engineering, AMS, PLA, Beijing 100850, China.
2. Professor, School of Civil Engineering, Southeast Univ., Nanjing 211189, China (corresponding author).
3. Senior Engineer, Institute of Defense Engineering, AMS, PLA, Beijing 100850, China.
4. Professor, School of Civil Engineering, Southeast Univ., Nanjing 210096, China.
5. Senior Engineer, 32391 Troops of PLA, Guangzhou 510515, China.