1. School of Civil Engineering and Transportation, Northeast Forestry University 1 , Harbin 150040, People’s Republic of China
2. Institute of Superconductor Mechanics, Lanzhou University 2 , Lanzhou 730000, People’s Republic of China
3. Department of Mechanics and Engineering Science, College of Civil Engineering and Mechanics, Lanzhou University 3 , Lanzhou 730000, People’s Republic of China
4. Key Laboratory of Mechanics on Environment and Disaster in Western China, The Ministry of Education of China, Lanzhou University 4 , Lanzhou 730000, People’s Republic of China