# The seepage occurring through an earthen dam is represented by a flownet comprising of 10 equipotential drops and 20 flow channels. The coefficient of permeability of the soil is $3 \mathrm{~mm} / \mathrm{min}$ and the head loss is $5 \mathrm{~m}$. The rate of seepage (expressed in $\mathrm{cm}^{3} / \mathrm{s}$ per $\mathrm{m}$ length of the dam) through the earthen dam is

## Question ID - 1 :- The seepage occurring through an earthen dam is represented by a flownet comprising of 10 equipotential drops and 20 flow channels. The coefficient of permeability of the soil is $3 \mathrm{~mm} / \mathrm{min}$ and the head loss is $5 \mathrm{~m}$. The rate of seepage (expressed in $\mathrm{cm}^{3} / \mathrm{s}$ per $\mathrm{m}$ length of the dam) through the earthen dam is

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The soil profile at a site consists of a $5 \mathrm{~m}$ thick sand layer underlain by a $c-\phi$ soil as shown in figure. The water table is found $1 \mathrm{~m}$ below the ground level. The entire soil mass is retained by a concrete retaining wall and is in the active state. The back of the wall is smooth and vertical. The total active earth pressure (expressed in $\mathrm{kN} / \mathrm{m}^{2}$ ) at point $\mathrm{A}$ as per Rankine's theory is  