Retaining Walls

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It is essential that any large retaining wall is correctly designed (a structural engineer will design) and built to a high standard paying considerable attention to the constructional detail. Grosvenor Buildings and Landscapes are able to offer clients the peace of mind knowing that the retaining wall will meet all of these requirements.

Traditionally a retaining wall is constructed using either, hollow concrete blocks which are then filled with concrete and steel reinforcing bar which extend into a large sized concrete foundation, or by constructing suitable shuttering, installing a matrix of steel reinforcing bars and then filling with concrete. It is normal for both of these structures to then be ‘decorated’ often with a brickwork or a render skin – we have also used Horsham stone, flint and timber screening. It would be normal for a drainage system to be installed to drain the groundwater build up from behind the retaining wall.

A solution that can provide a cost effective alternative is to construct the retaining wall using Tobermore Secura retaining wall blocks. This system uses dry laid interlocking blocks that already have a finished face. There are four sizes of blocks available with three different finishes which are specified according to the height and loadings that are to be retained. Depending on the specific site circumstances, the construction will produce either a gravity retaining wall (for heights up to 1.25m) or a reinforced retaining wall where the reinforcing can be by ‘Geo-grid’ layers, Concrete back filling or by the use of Duckbill Anchors. Another popular method of providing a retaining wall is the Gabion crates. These are wire mesh crates which are stacked and wired together and filled with heavy stone (usually with the face in a decorative stone) providing a solid structure with a modern look.

Where retaining walls are required at lower levels and loads, we have constructed them in timber (usually Chestnut, Oak or pressure treated softwood), Bricks, Dressed or Cropped or as dug walling stone, Flint with brick quoins, dry stone walls (in local Horsham stone or slate or by using a range of proprietary natural / mock stone blocks.