IV$.$ Settlements in clay $(22$ points$)$

width of loaded area is $15$ m A site is composed of a clay layer sandwiched between twous on increare in vertical below. Calculate the settlement due to consolidation in the sand layers, as shown and $($ii$)3$D solutions $1$ months after a surface load is applitay layer using the $($i$)1$D an increase in vertical stress of $50$ kPa in the middle of thed. This surface load causes $5$ m from the top of the clay layer$).$ Simplify your analysis by clay layer $($i$.$e$.,$ at a depth of considering a single.