Cheng, Wen-Chieh

Institute of Tunnel and Underground Structure Engineering, School of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an, China

Ni, James C.

Department of Civil Engineering, National Taipei University of Technology, Taipei, Taiwan, Republic of China

Shen, Jack S.

Department of Civil and Construction Engineering, Swinburne University of Technology, Hawthorn, Victoria, Australia Department of Civil and Construction Engineering, Swinburne University of Technology, Hawthorn, Victoria, Australia

Wang, Zhi-Feng

Department of Geotechnical and Tunneling Engineering, School of Highway, Chang’an University, Xi’an, China