Reinforced concrete cantilever retaining wall analysis and design aci 318 14 reinforced concrete cantilever retaining walls consist of a relatively thin stem and a base slab.
Cantilever retaining wall reinforcement design.
Assuming that the allowable bearing pressure of the soil is 120 knm 2 the.
Cantilever retaining wall is the most common type of earth retaining structure.
Sketches of the retaining wall forces should be considered to properly distinguish the different forces acting on our retaining wall as tackled in the previous article retaining wall.
For preliminary design considerations the length of heel slab is taken as h k a 3 as according to pillai and menon reinforced concrete design 2011.
It is the length from face of the wall stem to rear end of the base slab which includes the thickness of stem.
The stem may have constant thickness along the length or may be tapered based on economic and construction criteria.
These design methods are discussed in detail in allowable stress design of concrete masonry tek 14 7a and strength design of concrete masonry tek 14 4a refs.
It is constructed of reinforced portland cement.
Cantilever retaining wall are usually of reinforced concrete and work on the principles of leverage.
It has much thinner stem and utilize the weight of the backfill soil to provide most of the resistance to sliding and overturning.
Recommended stem designs for reinforced cantilever retaining walls with no surcharge are contained in tables 1 and 2 for allowable stress design and strength design respectively.