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

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According to the Mohr-Coulomb failure criterion, what is the effective shear strength τ_f of a soil with effective cohesion c' = 12 kPa, effective friction angle ϕ' = 32°, total stress σ = 180 kPa, and pore water pressure u = 50 kPa?

93.23 kPa 124.47 kPa 81.23 kPa 107.23 kPa

Correct Answer:

93.23 kPa

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