HKIE Professional Assessment - Geotechnical Discipline Practice Questions - HKIE Professional Assessment - Geotechnical Discipline (Hong Kong Institution Of Engineers) Exam

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A 6.0 m thick normally consolidated clay layer has an initial void ratio e_0 = 0.90, compression index C_c = 0.30, and initial vertical effective stress σ'_{v0} = 100 kPa. An foundation loading induces a vertical stress increment Δσ' = 100 kPa at the mid-depth of the layer. What is the ultimate 1D primary consolidation settlement ΔH of the clay layer?

285.2 mm 570.4 mm 190.1 mm 360.0 mm

Correct Answer:

285.2 mm

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