Retaining walls which set out a design methodology and safe load tables for these structures.
Block retaining wall design example.
Design the reinforced concrete masonry cantilever retaining wall shown in figure 2.
Traditional retaining wall solutions can be expensive and restrictive for example cast in situ construction is slow and expensive to build and precast retaining wall panels are restricted in height.
Building codes and retaining walls 5.
Learn more about gravity wall construction.
Let s take a fresh look and see how concrete interlocking blocks or more commonly known as concrete lego blocks can be used as the solution.
If you are not sure of your site conditions we recommend being conservative with your retaining wall heights or use geogrid in your retaining wall.
Assume level backfill no surcharge or seismic loading active earth.
Please note that the gravity wall chart provided has specific heights for specific site and soil conditions.
Retaining wall design 10 editionth a design guide for earth retaining structures contents at a glance.
Gravity walls rely on their own weight and setback to hold up the soil behind them.
Based on our example in figure a 1 we have the forces due to soil pressure due to water and surcharge load to consider.
The weight of a building or another retaining wall above and set back from the top of the wall are examples of dead load surcharges.
Retaining walls built from boulders are practical and extremely effective.
The interlocking retaining wall block can be used to build walls up to 24 to 36 inches high depending on the size of the block.
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Take a look to see if you can make one of these styles work for your project.
Follow the block manufacturer s instructions for wall height limits.
There are some great examples of block retaining walls in the photos below from basic cinderblocks to intricate masonry work.
Concrete masonry units concrete blocks manufactured to provide an attractive durable stable face to a retaining wall.
H x 8 in.
The following design example briefly illustrates some of the basic steps used in the allowable stress design of a reinforced concrete masonry cantilever retaining wall.
Avoid having downspouts pointed at the retaining wall and if it s against the house keep soil and mulch well below the siding.
D tan charcol concrete retaining wall block 378 piece pallet model 16253061 1 28 1 28.
Oldcastle mini beltis 3 in.
Soil bearing and stability 8.
Forces on retaining walls 6.
Soil mechanics simplified 4.
Buy 378 or more 1 15.
Earthquake seismic design 7.
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.
Boulder retaining wall ideas.
Design procedure overview 3.