$580$ Chapter $10$ Shallow Foundations

$10\mathrm{.}34$ Figure P$10\mathrm{.}34$ shows a proposed foundation design $(2\mathrm{.}8m2\mathrm{.}8m)$ on sand. Modulus measurements were

made at four locations below the foundation; these are shown in the figure. Develop a spreadsheet that will

estimate the settlement using the strain influence technique. This spreadsheet should allow the user to vary

foundation shape $($dimensions and $\frac{L}{B}$ value$),$ foundation load, and the time used in the creep correction.

First, analyze the settlement for a foundation load of $800kN,$ a time of $5$ years for the creep correction, and

use a layer thickness of $0\mathrm{.}3m.$ Then repeat the analysis for $4700kN$ and $\frac{L}{B}=4$ with $B=2\mathrm{.}8m.$