The bearing capacity factors Nc, Nq and Nγ are the functions of
- AWidth and depth of footing
- BDensity of soil
- CCohesion of soil
- DAngle of internal friction of a soilCorrect
Solution
Concept
Nc, Nq, Nγ depend only on φ
Step-by-step solution
1. Bearing capacity factors Nc, Nq and Nγ are dimensionless numbers. 2. They depend only on the angle of internal friction φ.
Explanation
Terzaghi's, Meyerhof's and other bearing capacity theories give Nc, Nq and Nγ as functions of the angle of shearing resistance φ alone. Width, depth, density and cohesion enter the equation separately.
Shortcut
N-factors = f(φ).
Common mistake
Choosing cohesion because Nc is the cohesion factor.
Correct answer: D) Angle of internal friction of a soil