engineering recuitment UKPSC AE Civil 2021 Mock Test (Re-Exam) Soil Mechanics and Foundation Engineering Shear Strength
If s is the shear strength, c and ϕ are shear strength parameters, and σn is the normal stress at failure, then Coulomb’s equation for shear strength of the soil can be represented by:
1
c = s + σn tan ϕ
2
c = s - σn tan ϕ
3
s = σn + c tan ϕ
4
s = c - σn tan ϕ