A normally consolidated clay settled 1 cm when effective stress was increased from 100 kN/m^2 to 200 kN/m^2. If the effective stress is further increased from 200 kN/m^2 to 400 kN/m^2, settlement of the same clay is

For normally consolidated clay, settlement is proportional to log(sigma2/sigma1). Both increments are stress doublings, so settlement is the same

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