Soil Nails

Soil nailing is a remedial construction measure to treat unstable natural soil slopes, or a construction technique that allows the safe over-steepening of new or existing soil slopes.

The technique involves the insertion of relatively slender reinforcing elements into the slope – often general-purpose reinforcing bars (rebar), although proprietary solid or hollow-system bars are also available. Solid bars are usually installed into pre-drilled holes and then grouted into place using a separate grout line. In contrast, hollow bars may be drilled and grouted simultaneously using a sacrificial drill bit and by pumping grout down the hollow bar as drilling progresses.