1. College of Civil Engineering, Nanjing Forestry University, 159 Longpan Rd., Nanjing, Jiangsu 210037, China
2. College of Civil Engineering, Nanjing Forestry University, 159 Longpan Rd., Nanjing, Jiangsu 210037, China (Corresponding author), e-mail: seuxt@163.com, https://orcid.org/0000-0001-6546-4197