1. Institute of Tunnel and Underground Structure Engineering, College of Civil Engineering, Xi’an University of Architecture and Technology, 13 Yanta Rd., Xi’an 710055, People’s Republic of China (Corresponding author), e-mail: liuyu8345@163.com, https://orcid.org/0000-0002-1042-5040
2. Institute of Tunnel and Underground Structure Engineering, College of Civil Engineering, Xi’an University of Architecture and Technology, 13 Yanta Rd., Xi’an 710055, People’s Republic of China