A retaining wall is 7.25 m high. Soil supported consists of 4.5 m of sand (Density (1782) kg/m3, 35 degree overlaying a

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A retaining wall is 7.25 m high. Soil supported consists of 4.5
m of sand (Density (1782) kg/m3, 35 degree overlaying a
saturated sandy clay (density (1866) kg/m3, 30 degree
c = (16.82) kN/m2). The ground water table is at the upper
surface of the sandy clay. Make a sketch of the distribution of
active pressure on the wall stating the principal values. Calculate
the thrust per linear meter of the wall, neglecting cohesion and
frictional force on the back of the vertical wall.