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.
Concrete block retaining wall design guide.
Cross section of a retaining wall a cinder block retaining wall is only as straight and solid as the base it s built on.
How to build a concrete wall figure a.
Concrete masonry unitsconcrete blocks manufactured to provide an attractive durable stable face to a retaining wall.
Geotextilea permeable polymeric material which may be woven non woven or knitted.
Retaining wall design 10 editionth a design guide for earth retaining structures contents at a glance.
Follow the block manufacturer s instructions for wall height limits.
The geo mat is attached to the blocks with galvanized steel fixing.
These phases are explained briefly.
Of compacted base 1 in.
Earthquake seismic design 7.
Soil mechanics simplified 4.
The system consists.
Reinforced earth walls can be built to 15 20m high and is a very economical solution to high retaining walls.
Foundation all concrete block walls must rest on a sturdy foundation of poured concrete.
Design procedure overview 3.
Of leveling sand and half the height of the first course of blocks.
The concrete block act as a protective facing to the wall and allow the reinforced earth wall be built safely.
Tall wall excavate a trench deep enough to accommodate 4 to 6 in.
Concrete block retaining wall construction consists of number of phases including excavation foundation soil preparation retaining wall base construction concrete block unit placement grouting and drainage system installation.
They are commonly h or double u configuration.
Concrete block design table you can use the concrete lego block retaining wall design table above as a guide.
The table gives you a number of wall heights and the number and size of blocks required for the height of the wall.
The walls are designed and constructed as either gravity retaining walls conventional or reinforced soil retaining walls.
Forces on retaining walls 6.
An information series from the national authority on concrete masonry technology ncma tek 15 8a 1 guide to segmental retaining walls introduction segmental retaining walls are modular block retaining walls used for vertical grade change applications.
It is commonly used to separate drainage material from other soil.
Soil bearing and stability 8.
The depth and size of the foundation will vary depending on the size of the concrete block wall and the weight it must support but a typical freestanding wall requires a foundation that is about twice as wide as the wall itself and which extends about 1 foot down below the frost line.