Use of the shear wave velocity to compute the settlement of shallow foundations
This is regarding the use of the shear wave velocity (Vs) to get the shear modulus (G) and hence the initial deformation modulus (Es) of the soil. This latter may be used to compute the immediate settlement of shallow foundations in a multilayered soil assumed to behave as a linearly elastic medium. However, the geophysical tests like the downhole or crosshole tests are indeed non destructive dynamic tests involving the inertia and the damping forces within the soil. These forces will not be mobilized if the soil is statically loaded. Is it therefore correct to use the deformation modulus so derived (by a dynamic test) and use it to analyse the static response of the soil beneath a foundation ?
Soil Mechanics / Geotechnical
Design
Shallow Foundations
Analysis
Geotechnical Investigations & In-Situ Testing
