## Appendix A
\begin{table}
\begin{tabular}{c c c c c c c} \hline \hline \multirow{2}{*}{**Shickness(m)**} & \multirow{2}{*}{\(E\) (**kN/m2\({}^{2}\)**)} & \multirow{2}{*}{\(I\) (m4/m)} & \multirow{2}{*}{
\begin{tabular}{c} **Reduction** \\ **Factor** \\ \end{tabular} } & \multirow{2}{*}{\(0.7 EA\)} & \multirow{2}{*}{\(0.7 EI\)} \\  & & & & (kN/m) & (\(\mathbf{k}\)N/m) \\ \hline
0.5E & 371.32 & \(115\%\) & 48.483 & 147\% & 246.1 & 100\% \\
0.75E & 342.43 & \(106\%\) & 38.368 & 117\% & 244.9 & 100\% \\
1.0E & 323.07 & \(100\%\) & 32.872 & 100\% & 245.4 & 100\% \\
1.5E & 297.63 & \(92\%\) & 27.075 & 82\% & 248.2 & 101\% \\
2.0E & 280.69 & \(87\%\) & 23.941 & 73\% & 251.7 & 103\% \\ \hline \hline \end{tabular}
\end{table} 
Table 8: Sensitivity of elastic modulus for sandy layers in PLAXIS and SoilWorks. \begin{table}
\begin{tabular}{c c c c c c c} \hline \hline \multirow{2}{*}{**CL** & \(\mathbf{Mmax}\) & \begin{tabular}{c} **Percentage** \\ **Change** \\ \end{tabular} & \(\mathbf{Dmax}\) & \
\begin{tabular}{c} **Percentage** \\ **Change** \\ \end{tabular} & \(\mathbf{Favg}\) &
\begin{tabular}{c} **Percentage** \\ **Change** \\ \end{tabular} \\ \cline{2-6}
0.5E & 130\% & 135\% & 173\% & 185\% & 106\% & 106\% \\
0.75E & 111\% & 113\% & 125\% & 129\% & 103\% & 102\% \\
1.0E & 100\% & 100\% & 100\% & 100\% & 100\% \\
1.5E & 88\% & 85\% & 74\% & 97\% & 98\% \\
2.0E & 82\% & 76\% & 60\% & 55\% & 96\% & 96\% \\ \hline \hline \end{tabular}
\end{table} 
Table 10: Sensitivity of elastic modulus for clay layers (undrained) in PLAXIS and SoilWorks. \begin{table}
\begin{tabular}{c c c c c c c} \hline \hline \multirow{2}{*}{**CL** & \(\mathbf{Mmax}\) & \begin{tabular}{c} **Percentage** \\ **Change** \\ \end{tabular} & \(\mathbf{Dmax}\) & \
\begin{tabular}{c} **Percentage** \\ **Change** \\ \end{tabular} & \(\mathbf{Favg}\) &
\begin{tabular}{c} **Percentage** \\ **Change** \\ \end{tabular} \\ \cline{2-6}
0.5E & 116\% & 124\% & 152\% & 173\% & 102\% & 104\% \\
0.75E & 107\% & 108\% & 119\% & 125\% & 100\% & 101\% \\
1.0E & 100\% & 100\% & 100\% & 100\% & 100\% & 100\% \\
1.5E & 92\% & 89\% & 81\% & 74\% & 99\% & 99\% \\
2.0E & 87\% & 82\% & 70\% & 61\% & 100\% & 98\% \\ \hline \hline \end{tabular}
\end{table} 
Table 11: Recommended simplified geotechnical parameters for Case Study 3. \begin{table}
\begin{tabular}{c c c c c c c} \hline \hline \multirow{2}{*}{**CL** & \(\mathbf{Mmax}\) & \begin{tabular}{c} **Percentage** \\ **Change** \\ \end{tabular} & \(\mathbf{Dmax}\) & \
\begin{tabular}{c} **Percentage** \\ **Change** \\ \end{tabular} & \(\mathbf{Favg}\) &
\begin{tabular}{c} **Percentage** \\ **Change** \\ \end{tabular} \\ \cline{2-6}
0.5E & 130\% & 135\% & 173\% & 185\% & 106\% & 106\% \\
0.75E & 111\% & 113\% & 125\% & 129\% & 103\% & 102\% \\
1.0E & 100\% & 100\% & 100\% & 100\% & 100\% & 100\% \\
1.5E & 88\% & 85\% & 74\% & 70\% & 97\% & 98\% \\
2.0E & 82\% & 76\% & 60\% & 55\% & 96\% & 96\% \\ \hline \hline \end{tabular}
\end{table} 
Table 12: Sensitivity of elastic modulus for clay layers (drained) in PLAXIS and SoilWorks. \begin{table}
\begin{tabular}{c c c c c c} \hline \hline \multirow{2}{*}{**CL**} & \(\mathbf{Mmax}\) & \begin{tabular}{c} **Percentage** \\ **Change** \\ \end{tabular} & \(\mathbf{Dmax}\) & \
\begin{tabular}{c} **Percentage** \\ **Change** \\ \end{tabular} & \(\mathbf{Favg}\) &
\begin{tabular}{c} **Percentage** \\ **Change** \\ \end{tabular} \\ \cline{2-6}
0.5E & 439.21 & 116\% & 71.259 & 152\% & 260.5 & 102\% \\
0.75E & 403.60 & 107\% & 55.556 & 119\% & 256.3 & 100\% \\
1.0E & 377.30 & 100\% & 46.818 & 100\% & 255.4 & 100\% \\
1.5E & 348.20 & 92\% & 37.725 & 81\% & 253.6 & 99\% \\
2.0E & 327.66 & 87\% & 32.639 & 70\% & 254.3 & 100\% \\ \hline \hline \end{tabular}
\end{table} 
Table 11: Sensitivity of elastic modulus for clay layers (drained) in PLAXIS and SoilWorks.