Concrete Rubble Retaining Wall
Gravity walls are typically wider at the bottom and taper down as we work to the top of the wall.
Concrete rubble retaining wall. The base of a rubble wall is usually around 1 2 of the height of the wall. The wall acts as one mass to resist the thrust from the backing and is much more stronger than dry stone masonry wall. Poles are typically spaced between 900 and 1 800 mm and set in concrete see figure 5. 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.
Gravity walls are the earliest known retaining structures. Gravity walls can be built out of various materials including concrete stone rubble granite rubble gabion baskets or modular block. These walls are also provided to support earth loose stone coal etc. Rubble walls are effective retaining wall systems but become more and more costly as the height of the wall increases.
Design considerations gravity retaining walls will vary in height depending on the application. For extra stability put down a layer of gravel or. Wide footing cantilever retaining walls may be built using in situ reinforced concrete or precast masonry blocks. Therefore they are usually not reinforced with steel.
They are built from solid concrete or rock rubble mortared together. 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. Embedded footing cantilever walls may be built from round or square h5 treated timber or precast concrete poles or i beams. The stability of the wall depends entirely upon its dead weight.