Of leveling sand and half the height of the first course of blocks.
Concrete block retaining wall design guide.
Masonry blocks bricks.
Of compacted base 1 in.
They are commonly h or double u configuration.
Concrete masonry units concrete blocks manufactured to provide an attractive durable stable face to a retaining wall.
Forces on retaining walls 6.
Foundation soil preparation for concrete block retaining walls.
Geotextile a permeable polymeric material which may be woven non woven or knitted.
Dig for the first row of block.
The intent of this material is to communicate the best practices for design of segmental retaining walls srw as determined by allan block corporation based on 25 plus years of research design and field experience.
Design procedure overview 3.
However some regulatory and structural issues are discussed.
Proper machines or tools should be selected and used for this.
The table gives you a number of wall heights and the number and size of blocks required for the height of the wall.
Building codes and retaining walls 5.
Earthquake seismic design 7.
The objective of this guideline is to provide information on retaining wall design in accordance with the city of nanaimo the city and the british columbia building code bcbc requirements.
This is not meant to be a final authority as each project has its own set of unique situations.
Tall wall excavate a trench deep enough to accommodate 4 to 6 in.
Construction of concrete block retaining wall with steps excavation work for concrete block retaining walls.
Adjust for sloping ground.
Soil mechanics simplified 4.
For row one knock off the flanges with a hammer and chisel so the.
Whilst all effort is made to produce uniformity in our range of products variation in colour texture and finish can be present.
Soil bearing and stability 8.
Cross section of a retaining wall a cinder block retaining wall is only as straight and solid as the base it s built on.
Segmental retaining walls are modular block retaining walls used for vertical grade change applications.
It is commonly used to separate.
The walls are designed and constructed as either gravity retaining walls conventional or reinforced soil retaining walls.
You can use the concrete lego block retaining wall design table above as a guide.
The focus of the guideline is the geotechnical aspects of retaining wall design.
The system consists of dry cast concrete units that are placed without mortar dry stacked and rely on their unit to unit interface and mass to resist overturning and sliding.
Foundation soil under the basement should be excavated.
The design table above presents for the reinforced block retaining walls are indicative designs based upon a base material with allowable bearing pressure of 200kpa.
Concrete blocks bricks pavers and retaining wall products supplied by national masonry are manufactured using raw materials that inherently vary in nature.
To bury the first row.
With the layout marked you can begin digging the trench.
Prepare the foundation step 1.