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Soil Nailing | Underpinning Foundations | Retaining Walls | Slope Stability | Bridge Foundations
Soil Nailing
Soil nailing is a technique for reinforcing a slope by introducing galvanised steel supporting bars that pass through the expected failure plane for the slope. Installed with a slight downward inclination, the ‘nails’ support the soil mass in front of and behind this failure plane.
Therefore this technology is for many different applications, including applications as diverse as –
- Temporary excavation support
- Retaining structures
- Remedial works on old slopes.
Modern soil nailing
With the evolution of soil nail design, helical screw piles; installed to precisely calculated torque, have shown their suitability for this purpose. As a leader in screw pile design, manufacture, supply and installation, FLI Structures have embraced soil nailing as one of its services for civil engineering.
Advantages of screw piles for nailing
A screw pile makes an excellent soil nail for the following reasons:
- High performance under tension (typical for slope stability applications).
- Fast, easy installation.
- Ideal for restricted sites or where ground-up retaining wall construction isn’t possible.
- More cost-effective than traditional grouted soil nails.
- Excellent slope stability with or without grouting.
- Grout-free installation options eliminate wet trades and concrete curing.
For more information, please contact us

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