$1($a$).$ The section of a Solid Gravity Dam built

of concrete $($unit weight $=24kN{m}^{-3})$ is shown

in the figure aside. A tailwater or D$/$S water

depth is $6\mathrm{.}0m$ when the dam reservoir is at its

maximum water level $($MWL$)$ at $86\mathrm{.}0m.$ Taking

the uplift pressure as equal to the hydrostatic

pressure at either ends and considered to act

over $60\%$ of the area of the base section,

evaluate the $($i$)$ net uplift pressure force, $($ii$)$

hydrodynamic force $($as per Zanger's formula$)$

and $($iii$)$ earthquake forces $($horizontal and

vertical$)$ acting on the dam section. The

earthquake forces are equivalent to $0\mathrm{.}10g$ for

horizontal forces and $0\mathrm{.}05g$ for vertical forces.

$($take$,$ unit weight of water $=10kN*m^{-3})$