UNDRAINED SHEAR CHARACTERISTICS OF OVERCONSOLIDATED PEATS

Theoretical Undrained Shear Behaviour of Unsaturated Soils

Prediction method for undrained shear behaviour of unsaturated soils is discussed in this paper. Based on Original Cam Clay model, authors have proposed constitutive model for unsaturated soils that the effect of water content is incorporated into superloading surface concept. Firstly, stress path of constant volume shear test is formulated under constant void ratio condition. And relationship ...

The undrained shear strength characteristics of silty sand : an experimental study of the eff ect of fi nes

This laboratory investigation has been conducted to elucidate how the fi nes fraction affects the undrained residual shear strength and liquefaction potential of sand-silt mixtures (Algeria). A series of monotonic and cyclic undrained triaxial tests were carried out on undrained, reconstituted, saturated samples of sand with varying fi nes content ranging from 0 to 50%. These were undertaken in...

undrained triaxial shear behavior of grouted carbonate sands

the effects of cementation and the physical properties of grains on the shear behavior of grouted sands are investigated in this paper. the consolidated-undrained triaxial shear behavior of three grouted carbonate sands with different physical properties, including particle size distribution, particle shape and void ratio, was studied. two sands were obtained from the north shores of the persia...

A Simplified Model Describing the Cyclic Behavior of Lightly Overconsolidated Clays in Simple Shear

The geological profile of submerged slopes of the continental shelf typically consists of normally to lightly overconsolidated clays with depths ranging from a few meters to a few hundred meters and very low slope angles. The stability of these slopes is often investigated with pseudo-static methods by reducing the dynamic loading to an equivalent inertial force. The simplifications are such th...

Evaluation of undrained response from drained triaxial shear tests: DEM simulations and Experiments