EXPERIMENTAL STUDY ON CREEP BEHAVIOR OF MARINE CLAY IN SHENZHEN

For the search of modern marine clay's creep rule,it was carried out one-dimensional compression creep test and triaxial undrained consolidation shear creep test on marine soft clay in Shenzhen under different consoildatation pressure.The experiment indicates that the marine clay creep's nonlinear feature is remarkable,which is revealed gradually with increase in stress;because of the confinement in the one-dimensional compression creep test,there is no fast creep damage phenomenon;a peak value occurs in the coefficient of secondary consolidation with the increase in consolidation,and the pressure corresponding to the peak value is a consolidation pressure ahead of time.The research also indicate that the consolidation pressure shall be increased as far as possible in the project,the consolidation and drainage of soil shall be accelerated,which may reduce the harm of creep to a building.