Building A Sound Retaining-Wall Structure
The structure of a retaining wall will depend on the lay of the land and the design presented by the civil engineer. Such a construction is designed to keep a natural slope at bay, allowing for the construction of buildings and roads next to it.
They can also be used as retention ponds on construction sites and at aquaculture farms. The design can call for an open- or closed-face installation, which will once again depend on its function. These walls can also follow natural bends and curves to ensure that the slope is effectively retained.
Seeing that this type of construction’s main function is to retain soil, the wall requires an engineer to draw up the plans for it and it must be approved before construction can commence. The structure’s integrity depends on a sound design that accommodates the natural slope perfectly. Construction begins with the excavation of the foundation. Its depth, width, and compaction will be determined by the length, height, and weight of the finished construction. These numbers will be shown on the engineer’s approved plans.
When excavating the foundation, survey the entire area first to give you the opportunity to precisely plot the excavation limits. It will also give you the means to plan proper accessibility to the work face at different heights and throughout various phases of construction. The structure of the retaining wall is kept in mind when surveying and plotting the area and as with any other construction, the foundation comes first. When filling the excavated areas, ensure that that foundation top is level with the ground. If the plans state differently to accommodate a rotated base, match the base level in accordance with the requirements set out in the engineer’s plan.
Place an initial concrete retaining-wall block on the lowest point of the foundation. Follow this by placing one at each upward-moving point to avoid any unwanted gaps. This will ensure the appropriate structure for the retaining wall; now, construction can commence. With the guidelines placed and the limits plotted, all that remains is laying it out according to the design. Remember to install positive gravity-flow drainpipes to ensure that rainwater drains effectively from it.
MVA Bricks offers a sensible selection of concrete retaining-wall blocks (CRBs) for different layouts and structures to suit your needs. We also offer a selection of concrete kerb blocks and paving bricks. For more information on our CRBs, please contact us with your enquiries. Choose us as your supplier of building materials and concrete blocks and take advantage of our SABS-approved blocks for your next project.