Question

A circular well of 7 m external diameter and 5 m internal diameter is embedded to a depth of 13
m below maximum scour level in a sandy soil deposit. The well is subjected to a horizontal force
of 600 kN acting at a height of 5 m above the scour level. The total equivalent resistive force due
to earth pressure, assuming
a) Rotation is about a point above the base
b) Rotation is at the base
Saturated unit weight = 20 kN/m3, Angle of shearing resistance = 30°, FOS = 2.0, Use
Terzaghi's analysis.​

Answer 1

Answer:

I think answer b one rotation is at basic