For a modestly restrained cantilever retaining wall, which lateral earth-pressure state commonly produces larger bending demand than perfectly at‑rest coefficients?
Choices
- (A) Passive pressure regardless of kinematics
- (B) Fully mobilized active state even when wall cannot translate
- (C) Active Coulomb‑style wedges once small wall rotations mobilize shear along failure planes
- (D) Zero lateral thrust no matter embedment
Correct answer: (C)
Active Coulomb‑style wedges once small wall rotations mobilize shear along failure planes
Explanation
Small wall yields unlock active wedges vs at-rest envelopes.