PRACTICE PROBLEM: $2$

For the Barrage shown in the figure below,

USING LANE Weighted creep theory

$($a$)$Draw H$.$G$.$L$.($hydraulic gradient line$)$ for static head condition

$($b$)$Check the safety against piping failure; assume the bed soil of the river is coarse sand.

$($c$)$ Find the uplift pressure head at point $A$&$B$