Retaining wall design 10 editionth a design guide for earth retaining structures contents at a glance.
Hollow block retaining wall design example.
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.
Reference guide for designing retaining walls using interlocking concrete blocks epcl 2017 rwrg 01 p01 june 2017 3 2.
Design for earth loads retaining walls which set out a design methodology and safe load tables for these structures.
Individual units range from 19lbs 8 6kg to 1 700lbs 772 7kg and some.
If someone suggested creating a wall or fence from a wire cage filled with crushed rock you might assume it would be ugly and is only used to save money.
Soil bearing and stability 8.
Built to last unilock manufactured retaining wall systems are engineered to last.
Based on our example in figure a 1 we have the forces due to soil pressure due to water and surcharge load to consider.
Use a plate compactor to consolidate the wall rock directly behind the block then compact in a path parallel to the wall working from the back of the block to the back of the excavated area with a minimum of 2 passes.
In 1990 the concrete masonry association of australia cmaa published masonry walling guide no 4.
Design method this guidance document is primarily concerned with the design of retaining walls rather than free standing walls.
Design procedure overview 3.
Follow the block manufacturer s instructions for wall height limits.
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.
Avoid having downspouts pointed at the retaining wall and if it s against the house keep soil and mulch well below the siding.
Building codes and retaining walls 5.
More information on compacting your retaining wall.
N ultimate load design with material.
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.
Earthquake seismic design 7.
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.
Soil mechanics simplified 4.
Fill a hollow block core and the ability to easily modify blocks on site is a considerable labor savings.
Use infill or approved on site soils to backfill behind the wall rock in lifts of no more than 8 in.
Into hollow concrete blockwork which is built on a reinforced concrete footing.
Check out all of these gabion wall and fence ideas.