High Initial Shear Stress Slows Pore-Water Pressure Development in Sands
The initial shear stress and vibration frequency affect the pore-water pressure in saturated sands. Higher initial shear stress leads to slower pore-water pressure development and lower pressure when the sample breaks. The maximum pore-water pressure ratio decreases as consolidation ratio increases. The relationship between dynamic pore-water pressure and vibration time follows a power function. A modified model considering vibration frequency can predict pore-water pressure changes accurately.