Block Retaining Wall Design Example
Follow the block manufacturer s instructions for wall height limits.
Block retaining wall design example. 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. Oldcastle mini beltis 3 in. 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. Conditions and wall geometry n a design example which demonstrates the use of the australian standard and.
Forces on retaining walls 6. D tan charcol concrete retaining wall block 378 piece pallet model 16253061 1 28 1 28. 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. Design the reinforced concrete masonry cantilever retaining wall shown in figure 2.
W x 4 in. Soil bearing and stability 8. Design relationships table 1 summarizes the influence of increasing the wall batter increasing the unit width increasing the unit s in place density and using better quality backfill on the maximum. Based on our example in figure a 1 we have the forces due to soil pressure due to water and surcharge load to consider.
Retaining wall design 10 editionth a design guide for earth retaining structures contents at a glance. Set your store to see local availability add to cart. 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.
Boulder retaining wall ideas. Soil mechanics simplified 4. Concrete masonry units concrete blocks manufactured to provide an attractive durable stable face to a retaining wall. Assume level backfill no surcharge or seismic loading active earth.
Retaining walls which set out a design methodology and safe load tables for these structures. Buy 378 or more 1 15. 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. Learn more about gravity wall construction.
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. Please note that the gravity wall chart provided has specific heights for specific site and soil conditions. Gravity walls rely on their own weight and setback to hold up the soil behind them. Avoid having downspouts pointed at the retaining wall and if it s against the house keep soil and mulch well below the siding.
Design procedure overview 3. Building codes and retaining walls 5. There are some great examples of block retaining walls in the photos below from basic cinderblocks to intricate masonry work. Take a look to see if you can make one of these styles work for your project.