INSTRUCTIONS

$1.$ Solve the following problem using handwritten calculations. All necessary work. diagrams and calculation steps must be shown clearly and neatly presented.

$2.$ Scan and upload on e$-$learning by the required date. Make sure you scan the calculation pages only.

$3.$ The assignment holds a $\backslash (20\backslash \%\backslash )$ weight to the overall grade of the course. Submit following the deadline given on e$-$learning.

RETAINING STRUCTURE PROBLEM

An embedded sheet pile wall will be driven into an excavation to retain the neighbouring soil $($medium to dense sand as shown in the figure below$).$ Determine whether an embedment depth of $3\mathrm{.}00$ m is adequate to prevent failure of the wall according to the geotechnical ultimate limit state $($GEO ULS$)$ of Eurocode $7.$ Suggest a solution if stability is not satisfied and show this in a sketch.

$($Assumptions: The groundwater level is well below toe level. Free$-$earth method maybe applied for the calculations, with wall rotation about the toe$).$