SOILS FROM SEISMIC VELOCITIES

In this study, in-situ proctor penetrometer and vane experiments were used to determine the pressure and shear strengths and in-situ seismic cross-hole experiments were used to determine the dynamic properties of soil. Vane and proctor penetrometer experiments were also performed where seismic cross-hole studies were carried out. Multi- parameter experimental relationships were determined from the compressive strength and shear strength which were found from proctor penetrometer and vane, and seismic velocities obtained from seismic cross-hole studies. This study suggests that the pressure and shear strengths of sand and clay predominance soils from in-situ seismic velocities can be estimated. The results show that estimation of pressure and shear strengths by using experimental relationship equations proposed is fairly at good levels.