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A three-storey building is to be constructed on a sand beach. Ground water rises to a...

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Civil Engineering

A three-storey building is to be constructed on a sand beach.Ground water rises to a maximum
of 3 m below ground level. The beach sand has the followingproperties: ?d = 17.5 kN/m3
, ? = 32° (Nc = 40,
Nq = 25, N? = 30). The maximum column load will be 700 kN.Determine the sizes of footing for depths of 1
m and 2 m using a factor of safety of 3. Settlement are not tobe considered. Evaluate the two alternatives
from practical consideration (difficulties of construction andcost).

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