SIT. Refer to fig

Given: Active earth pressure coefficient $=1/3$

a$=0\mathrm{.}25$m f$=0\mathrm{.}5$m

b$=0\mathrm{.}40$m F$$c$=24$MPa

c$=0\mathrm{.}8$m Fy$=415$MPa

d$=3\mathrm{.}5$m Soil unit weight $=18\mathrm{.}8$ kN$/$m$3$

f$=0\mathrm{.}5$m Concrete unit weight$=24$ kN$/$m$3$

Required Strength of the wall, U$=0\mathrm{.}7$D$+1\mathrm{.}7$E$,$ where D is dead load and E is Earth pressure. Consider per meter strips of wall along its length.

$59.$ Calculate the factor of safety against sliding of the retaining wall consider coefficient of friction at the base $=0\mathrm{.}57$

$1\mathrm{.}6$ B$.1\mathrm{.}3$ C$.1\mathrm{.}77$ D$.1\mathrm{.}45$

$60.$ Calculate the factor of safety against overturning of the retaining wall.

$1\mathrm{.}19$ B$.2\mathrm{.}52$ C$.1\mathrm{.}53$ D$.0\mathrm{.}98$

$61.$ Calculate the max design moment at the stem of the wall

$383\mathrm{.}52$

$483\mathrm{.}3$

$453\mathrm{.}21$

$235\mathrm{.}1$