[1] Pore pressure changes are rigorously included in Coulomb stress calculations for fault interaction studies. These are considered changes under undrained conditions for analyzing very short term postseismic response. The assumption that pore pressure is proportional to faultnormal stress leads to the widely used concept of an effective friction coefficient. We provide an exact expression for...

Abstract The influence of stress anisotropy ( K ) (i.e. the ratio between effective horizontal and vertical stresses) on shear behaviour soils has received significant attention in past studies, but how its depends different values plasticity index (PI) not been properly quantified. In this study, results a series undrained triaxial tests anisotropically consolidated soil at are reported , toge...

This study aims to investigate the impact of initial mean effective stress on thermo-mechanical behavior saturated normally consolidated kaolinite clay. Specifically, a series isotropic thermal triaxial tests in cell equipped with image analysis for volume change tracking was performed understand drained response as well undrained shear strength before and after heating. Anisotropically clay sp...

To investigate the strength and deformation characteristics of gravelly sand on Qinghai-Tibet Plateau under different stress paths, a series triaxial shear tests was conducted confining pressures 50–400 kPa in four types path conditions conventional compression (CTC) (drained undrained), (TC), reduced (RTC). We can see from test results that samples show strain hardening contraction CTC (draine...