Relying in national key discipline Nanjing University hydrogeology& engineering geology subject which is leaded by Academician of Chinese Academy of Sciences professor Xue Yuqun, as a production- teaching- research combination, geotechnical branch is both produce& develope entity and research& teaching base. We have several research teams which are leaded by a number of domestic first-class well-known professors. We are unique in theories about geotechnical engineering, looking for water for the new structure, plane theory etc., and we have significant influence in home& abroad.