Courant, Richard, Hilbert, David (university Of K¿nigsberg (2) Timinger, Holger (2) Zang, Zhigang (kyushu University; Chongqing University), Cai, Wensi (university Of Manchester; Chongqing University), Zhou, Yong (chongqing University) (1) Deutsche Gesellschaft Fur Geotechnik (1) Suleimanov, Baghir A. (oil Gas Scientific Research Project Institute (socar), Veliyev, Elchin F. (oil Gas Scientific Research Project Institute (socar) (1)