Computer · Soil Mechanics
A vertical smooth rigid retaining wall is supporting horizontal ground with dry cohesionless backfill having a friction angle of 30°. The inclinations of failure planes with respect to the major principal plane for Rankine's active and passive earth pressure conditions, respectively, are:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 130° and 60°
- 260° and 30°✓
- 360° and 60°
- 430° and 30°
Correct answer
60° and 30°
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