Influence of degree of saturation on the dynamic soil properties of a sandy soil

It is commonly assumed that the fully-saturated scenario represents critical shear strength condition for geotechnical structure design; nevertheless, this not case when dynamic of unsaturated soil considered, because water content affects transfer seismic waves through porous medium and into a structure. important to better understand behavior so response during an earthquake could be established prevent damage or failure A series cyclic triaxial tests with controlled matric suction was conducted determine principal parameters sandy different degrees saturation. Finally, assess influence saturation on properties soil, lateral load pile design performed using Reese’s p-y curve method, parameter obtained from laboratory testing were used backcalculate coefficients structural design. Structural designs laterally loaded piles considering demonstrated saturated while subjected does represent analysis.