Primary consolidation settlement is governed by which theory?
Choose the correct answer
Elastic theory (Hooke''s law only)
Terzaghi''s 1-D consolidation (pore pressure dissipation over time)
Mohr-Coulomb shear failure
Newmark''s influence chart
Correct Answer
B. Terzaghi''s 1-D consolidation (pore pressure dissipation over time)
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Terzaghi''s 1D consolidation theory: excess pore pressure dissipates with time as water drains from voids. Settlement S = Cc/(1+e0) × H × log(σ'f/σ'0). Time rate: U% governed by Tv = cv·t/Hdr². cv = coefficient of consolidation. Settlement and rate are independent of shear strength — purely volumetric.
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