The average shear-wave velocity in the top 30 m based on travel time from the surface to a depth of 30 m is known as V S30. Dynamic shear modulus or stiffness of the soil G MAX or Go with a knowledge of the soil density r 1 13 14 15. 360 ms 760 ms very dense soil and soft rock.
R -085 log 016 log Vh S 3 A small strain shear modulus is the key benchmark and.
Average Shear Wave Velocity to a Depth of 30 m V S 30 ms 0 100 200 300 400 500 600 700 800 Rayleigh Wave Phase Velocity at a Wavelength of 36 m VR36 ms y 10762x r2 09879-50-40-30-20-10 0 10 20 30 40 50 Residuals ms 0 100 200 300 400 500 600 700 800 Rayleigh Wave Phase Velocity at a Wavelength of 36 m VR36 ms. Go rV S 2 2 The soil density r can be evaluated from the measured shear-wave velocity V S and the depth h 12. Sheeran et al 1967 studied the shear wave velocity of com-compacted clayey soils to compaction water content. The longitudinal wave velocity is 18000 ms 1 and the shear wave velocity is 1300010500 m s 1.