Question

Difference between the boussinesqs and westergaards theory w r t applied geotechnical engineering sub

Answer 1

Westergaard developed a solution to determine distribution of stress due to point load in soils composed of thin layer of granular material that partially prevent lateral deformation of the soil.

Assumptions:

(1) The soil is elastic and semi-infinite.

(2) Soil is composed of numerous closely spaced horizontal layers of negligible thickness of an infinite rigid material.

(3) The rigid material permits only the downward deformation of mass in which horizontal deformation is zero.

Boussinesq's theory formula is based on following assumptions.

The soil mass is semi-infinite, homogeneous and isotropic.The soil has a linear stress-strain relationship,The soil is weightless.The load is a point load acting on the surface.

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