Post-cyclic loading undrained strength degradation characteristics of silty clay

On the basis of effective stress strength theory and Henkel s pore-water equation,formulae and relationship ofundrained strength of normally -consolidated saturated clay under various triaxial and plane strain tests are established.

Based on the elasto-plastic model of the marine soil, a relationship has been made between undrained strength and overconsolidated rate Because sample disturbance is inavoidable under present condition of sampling technology,a new method to determine preconsolidated pressure by undrained strength has been introduced.

Research on undrained shear strength tests of soft Lianyungang clay

Prediction of undrained shear strength in soft clays based on fall-cone tests

In addition, the undrained shear strength feature obtained in line with the corresponding assumption is presented.

Two groups of measured data of undrained shear strength were used to validate the proposed models.

For it′s creep behavior,undrained shear strength of saturated clay is related to load rate.

New soil classification chart and undrained shear strength ( c u) based on CPTU are developed in this paper.

The random field analysis model of the spatial variability of undrained shear strength is discuned on condition that soilproperty is varied lineary with depth.

Because of the stress induced anisotropy caused by the initial anisotropic stress state, the undrained shear strength usually displays anisotropic nature.

The undrained shear strength of K0-consolidated clay is provided with the property of stress-induced anisotropy.

Compared to the south side,the piezometric head have slower change,drained strength is smaller,and water-holding capacity is bigger in the soil of the north side as the compacted soil.