1. Key Laboratory of Mechanics on Environment and Disaster in Western China, Ministry of Education, Lanzhou University, Lanzhou 730000, People’s Republic of China
2. Department of Mechanics, School of Civil Engineering and Mechanics, Lanzhou University, Lanzhou 730000, People’s Republic of China
3. School of Electronical and Machanical Engineering, Xidian University, Xi’an, 710071, People’s Republic of China