Immediate (elastic) settlement of a foundation on clay under undrained conditions is calculated using:
Choose the correct answer
Terzaghi's consolidation theory
Elastic theory (using E_u and ν = 0.5)
Skempton's bearing capacity formula
Proctor's compaction energy formula
Correct Answer
B. Elastic theory (using E_u and ν = 0.5)
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Immediate (undrained) settlement is computed using elastic theory: s_i = q×B×(1-ν²)/E_u × I_s, where E_u = undrained Young's modulus, ν = 0.5 (undrained, incompressible), I_s = influence factor depending on shape and rigidity of footing.
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