5Guo W D,Qian H J.Behaviour of stone column foundation[A].Proceedings of the Ninth Asian Regional Conference on Soil Mechanics and Foundation Engineering[C].Thailand:Bangkok,1991.479-482.
6Wan R G; Guo P J.Coupled dilatancy-compaction model for homogeneous and localized deformation of granular materials[A].Pietruszczak &Pande eds,Numerical Models in Geomechanics[M].Rotterdam:Balkema,1997.3-8.