k $2\mathrm{.}0\backslash$times $10^(-6)($m$)/($sec$)$ and $1\mathrm{.}6\backslash$times $10^(-5)($m$)/($sec$),$ respectively. The upper soil layer possesses a saturated

unit weight of $22$k$($N$)/($m$^(3)),$ while the lower layer has a weight of $18$k$($N$)/($m$^(3)).$ As for the concrete employed in the

construction of the dam, it has a unit weight of $24$k$($N$)/($m$^(3)).$

Figure $1$: Concrete dam $($not to scale$)$

Determine:

$1-$ Quantity of seepage $($Q$)$ under dam in m$^(3)()/($day$)$ per metre run.

$2-$ Average uplift force in kN acting at the base of the dam per metre run.

$3-$ Safety factor against the buoyancy of the dam.

Consider the following methods:

A$-$ Manual calculation $($Isotropic approach$)$: Convert to isotropy condition by calculating equivalent k in x

and y directions and adjusting x$-$scale before calculations and utilise flow nets and corresponding manual

calculations