Boussinesq equations are developed for computing stresses in a homogeneous, isotropic and elastic media due to a point load at the surface. They use the boussinesq solution, which was extended by burminster 2,3 for twolayered and three layered systems, then by schiffman 4 for multilayered systems. Layered theory is applied to the design of a crcp overlay of an existing jointed concrete airport pavement for a series of jumbo jets. Use of linearelastic layered theory for the design of. For computing stresses and deflections in an elastic halfspace material composed of homogeneous, isotropic, and linearly elastic material. Still widely used in soil mechanics and foundation design. Boussinesq equations the original elastic theory published by boussinesq in 1885. Half space is an infinite large area with infinite depth with a top plane on which loads are applied.
Several pavement tests were carried out to evaluate the pertinence of the linear elasticity in pavements design. Pdf use of the boussinesq solution in geotechnical and. The design of overlays for existing pavements, especially rigid pavements, has pre. The boussinesq theory for the distribution of stresses in a halfspace resulting from surface loads is largely used in road engineering. Highwaytransportation lec 21u4pavement design part a4. International conference on the structural design of asphalt pavement, proceedings, university of. Also discussed are the effects on deign of an intermediate asphalt concrete stressrelieving layer between concrete pavements. Use of the boussinesq solution in geotechnical and road engineering. Use of the boussinesq solution in geotechnical and road. It is based on the assumption of linearelastic homogeneous. Boussinesq equations, stress isobar and pressure bulb concept, pressure distribution on horizontal and vertical planes, stresses due to point load, line load, strip load, uniformly loaded circular and rectangular areas. Highwaytransportation lec 21u4pavement design part a4 flexible pavement by bk mahawar. To see more videos on different topic go to playlist for more updates. Boussinesq s theory to determine the stress and deflection, but the soil is more different form assumption of ideal mass material, nonisotropic and inelasticity then elasticity is not constant over depth, however boussinesq s theory could be use estimate the stresses for designing method.
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