Brick masonry stone masonry or plain concrete retaining walls.
Concrete rubble retaining wall.
Design considerations gravity retaining walls will vary in height depending on the application.
Poles are typically spaced between 900 and 1 800 mm and set in concrete see figure 5.
Therefore they are usually not reinforced with steel.
The base of a rubble wall is usually around 1 2 of the height of the wall.
They are built from solid concrete or rock rubble mortared together.
Embedded footing cantilever walls may be built from round or square h5 treated timber or precast concrete poles or i beams.
The lateral forces from backfill is resisted by the weight of wall itself and due to their massive nature they develop little or no tension.
Rubble walls typically have a concrete footing and the footing width is 6 12 wider than the base of the wall.
The stability of the wall depends entirely upon its dead weight.
The wall acts as one mass to resist the thrust from the backing and is much more stronger than dry stone masonry wall.
Wide footing cantilever retaining walls may be built using in situ reinforced concrete or precast masonry blocks.
Gravity walls can be built out of various materials including concrete stone rubble granite rubble gabion baskets or modular block.
Gravity walls are the earliest known retaining structures.
These walls are also provided to support earth loose stone coal etc.
Gravity walls are typically wider at the bottom and taper down as we work to the top of the wall.
See reference 1 pages 13 to 14 in each area you wish to build a section of wall dig and level a space as wide and deep as you wish to plant.