Soil nails are a cost-effective method for long or short-term stabilisation of steep existing or proposed slopes. The stability of the slope is increased with the installation of steel or glass fibre threaded soil nails placed into pre-bored holes or simultaneous drilling and installation techniques. The end results, along with the correct drainage, significantly reduce the chances of a landslide or other ground movements. Typically used to stabilise existing slopes or excavations where top-to-bottom construction, soil nailing is advantageous compared to other retaining wall systems. Soil nail walls are particularly well suited to excavation applications for ground conditions that require vertical or near-vertical cuts.
Soil Nailing is a technique which is used for retaining walls and other projects, as a way of reinforcing the soil. Soil nailing can be used as a solution for both permanent and temporary retaining walls. As part of soil nailing, the slope or wall which is required to be stabilised first needs to be predrilled. Long steel rods are then put in place and grouted in firmly to hold the soil in place. If the soil contains corrosive elements, then the steel rods need to be coated in anti-corrosives to protect them. To give the soil optimum stability, a covering later fixes the rods in place.
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