Displacement load in soil is due to the pressures exerted by the load force. The distribution of stresses in the soil must be known for realistic estimates of the displacement caused by the applied load on the supporting soil.
The following methods can be used to estimate the stress distribution of the soil for the applied load: Why at the focal point of an area. Practical calculations of settlement are based on these estimates of the stress distribution.
approx 2:1 distribution
An approximate stress distribution assumes that the total applied load on the soil surface is distributed over an area of the same size as the surface loaded area, but increases by an amount equal to the depth below the surface with dimensions, Figure 1,
at depth jade Total weight in feet below ground surface Why The tonnage applied by a structure to the surface of the ground is considered to be uniformly distributed over an area (b + z) By (L+Z), vertical pressure increase DSjade in units of tsf at depth jade for an applied load Why is given by
DSjade = Q / [(B + z) * (L + z)]
b And Took The width and length of the foundation are in feet respectively.
DSjade There is an increase in vertical pressure due to construction.
The vertical stress calculated by the above equation reasonably agrees with Boussinesq’s method.