Excel Sheet For The Design of Cantilever Retaining Wall

Retaining wall is an important structure in civil engineering. A Civil Engineer needs no introduction for a retaining wall but for other’s information I will briefly explain the purpose of a retaining wall. A retaining wall is a supporting structure that retains the unbound and loose soil of unnatural slopes and serves the purpose of aesthetics at the same time. I have prepared a tutorial for my viewers for the design of cantilever retaining wall. A cantilever retaining wall uses much less material than a traditional gravity wall. They are built from steel-reinforced, cast-in-place concrete or mortared masonry.

So first go through highlights for the design of a cantilever retaining wall.

Following is the sketch of the retaining wall with all the dimensions, which I have designed in MS Excel.

cantilever retaining wall

The following data needs to be filled before the start of design.

cantilever retaining wall

 Find out the active and passive earth pressure co-efficients. Then assume thickness of base.

cantilever retaining wall

 Then calculate the base length of the wall.

cantilever retaining wall

 Calculate stem thickness as follows:

cantilever retaining wall

 Now check ‘d’ for shear reinforcement of stem , proceed as follows:

cantilever retaining wall

 Next step is to check factor of safety against overturning.

cantilever retaining wall

 Check factor of safety against settlement and sliding.

cantilever retaining wall

 If the check for sliding is not ok, you need to provide shear key.

cantilever retaining wall

 Design heel of cantilever as follows:

cantilever retaining wall

 Find out the main reinforcement and shear reinforcement.

cantilever retaining wall

 Then find out reinforcement for stem.

cantilever retaining wall

cantilever retaining wall

Here is the excel sheet for the design of Cantilever Retaining wall. You can edit this according to your own case with your own values. Note that you will have to input the data into the figure as well to get the shape for your retaining wall accordingly.

Excel Sheet for Cantilever Retaining Wall

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