[Tang, Yi-Qun; Cui, Zhen-Dong] Tongji Univ, Dept Geotech Engn, Shanghai 200092, Peoples R China.
[Tang, Yi-Qun; Cui, Zhen-Dong] Tongji Univ, Minist Educ, Key Lab Geotech & Underground Engn, Shanghai 200092, Peoples R China.
[Guo, Chang-Qing] Univ S China, Sch Math & Phys, Hengyang 421001, Peoples R China.
[Yuan, Li] Tongji Univ, Sch Aerosp & Appl Mech, Shanghai 200092, Peoples R China.
[Yan, Chun-Ling] Univ S China, Fac Nucl Resources & Safety Engn, Hengyang 421001, Peoples R China.