Retaining Walls Flashcards
What are Gravity Retaining Walls?
retaining walls that depend on their own weight and any soil resting on the retaining wall for their stability
What are semigravity retaining walls?
gravity retaining walls that use a small amount of steel
(gravity retaining walls depend on their own weight and any soil resting on the retaining wall for their stability)
What are Cantilever retaining walls?
consist of a thin stem and a base slab
What are counterfort retaining walls?
similar to cantilever retaining walls, with a thin vertical concrete slab known as “counterforts” that tie the wall and the base slab together
What causes a SLIDING with respect to rigid retaining walls?
a lack of horizontal friction at its base or lack of soil pressure resistance in front of the toe or shear key
RW slides horizontally away from the retained soil
What causes a OVERTURNING failure with respect to rigid retaining walls?
rotation due to settlement at the toe or moment
RW rotates
What causes a BEARING CAPACITY failure with respect to rigid retaining walls?
settlement and rotation due to inadequate factor of safety against capacity
RW sinks down and tilts away from retained soil
What causes a SETTLEMENT failure with respect to rigid retaining walls?
insufficient bearing capacity of the supporting soil
RW sinks straight down