Reinforced concrete design of a cantilever retaining wall

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       In order to proper design the reinforcing of a cantilever retaining wall we recommend studying the  example that you can acces here and follow the design steps calculation needed to perform this task .
Note that at the end you shouldn't have more than 3-4 marks of rebars and the designed diameter of the rebars should be with a difference of min. 4mm on the same design strength(because the rebar configuration tends to be confusing for the simple worker) ,also you should check for the design code needed for your country as the example is made after ACI 318-05 that can be used for U.S.A soil terrain.
 At the end of the design you should have a complete rebar configuration that can be viewed in the image bellow:



For a quick estimation of the rebar configuration you can try using the following application by clicking here .

Gravity retaining wall designs-Concrete elevation

Retaining wall solutions in seismic areas

Although sometimes the real behaviour in earthquake time of different soils can be hard to estimate accurately there are some measures that can be taken that could ensure a long term efficiency of retaining walls.
For this we can take notes from a case study of a road embankment along a river side in an important sesismic area that was designed with a cantilever reinforced concrete retaining wall at the bottom and gabions along the clear path of the embakment to protect the road's embakment for  high waters and also sesimic activities ensuring that the road will last the period of time it was designed for and can sustain high traffic loads in any conditions.

A few details of the design can be visualised more accurately from the typical cross section below: