[1] Guangzhou Univ, Sch Civil Engn, Guangzhou 510006, Peoples R China
[2] Sun Yat Sen Univ, Sch Civil Engn, Guangzhou 510275, Peoples R China
[3] Guangdong Engn Res Ctr Underground Infrastruct Pro, Guangzhou 510006, Peoples R China
[4] Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai 519082, Peoples R China