Question $6($Retaining Wall$)$

A cantilever retaining wall is shown in Fig. $2.$ Determine the factor of safety against $($a$)$ overturning,

$($b$)$ sliding and $($c$)$ bearing capacity. The unit weight of the wall material is $23\mathrm{.}5k\frac{N}{m^3}.$ Use Rankine's

earth pressure theory. $($Use $k_1=k_2=\frac{2}{3})$

$($i$)$ Neglect passive pressure for conservative analysis.

$($ii$)$ Use appropriate tables from class notes.