Shear strength Professor: Dr Nor Zurairahetty Mohd Yunus Students:

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Presentation transcript:

Shear strength Professor: Dr Nor Zurairahetty Mohd Yunus Students: Filzah Atikah Binti Yusop Nurul Ashikin binti Mohamed Tee Zi Hou Ong Kai Cheang Wan Nur Afiqah Zamri Nurul Nur Syuhada Binti Hisammudin Siti Sarah A'qilah Binti Sohaimi Patricija Kadagyte Nurul Fasihah Bt Zaidin Razin b Abdul Malik Sauddah Bt Baharom

Mohr Circles And Failure Envelope Cohesion, (C) – the act or state of similar particles sticking together Internal Friction Angle, (φ) - the stress-dependant component which is similar to sliding friction of two or more soil particles Shear Strength at failure: τf= = c + σntanΦ COHESIVE SOIL COHESIONLESS SOIL C = ✔ φ = 0 For example: Clay Silt C = 0 φ = ✔ For example: Sand Gravel

Determination Of Shear Strength In Lab UCS DIRECT SHEAR TRIAXIAL COMPRESSION normal force (P) area of cross section sample = shear resistance develope at sliding surface (S) = area of cross section sample Important equations: