. It was speculated that failure occurred by bearing capacity failure. Clarify whether this is so or not.

Structural Analysis
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ISBN:9781337630931
Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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A circular foundation of diameter 8 m supports a tank. The base of the foun-dation is at 1 m below the ground surface. The vertical load is 20 MN. The tank foundation is supported by a soil with undrained shear strength equal to 80 kPa and saturated unit weight of 19 kN/m3, dry unit weight of 17.6 kN/m3and angle of internal friction equal to 25°. Ground water table is 4 meters below the surface and assumed to be stable. Fourteen months after the tank was constructed, during a week of intense rainfall, the foundation failed. It was speculated that failure occurred by bearing capacity failure. Clarify whether this is so or not.

 

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