Soil Nails

In-situ steel reinforcement with soil nails stabilizes slopes and cuttings

Soil nailing is a passive system for stabilizing slopes, cuttings and deep excavations where deformations are non-critical. 


  • The load transfer system in soil nails differs significantly from actively tensioned ground anchors 

  • The complete soil is consolidated by the soil nail, increasing its load-bearing capacity

Soil nails are used in

  • Embankment stabilization

  • Deep excavations

  • Slope stabilization

How soil nails work

Soil nails do not act individually, but as a complete nailing system. Their use increases the capacity of a slope or cut face by introducing in-situ steel reinforcement. 

Soil nails are installed into a passive areas of the slope to stabilize the active zone of the slope. As a result, tensile and shear forces act on the soil nail to reinforce the soil, stabilizing the slope.


  • Solid threadbars or self-drilling hollow bars

  • Solid threadbar diameters 25-32mm

  • Self-drilling hollow bar diameters 25-38mm

  • Installed in restricted access locations

  • Tension and shear loadings

  • Permanent or temporary options

Nuclear Power


Tunnels Using Cut-and-cover Method

Retaining Structures, Shoring, Excavations

Slope Stabilization

Temporary soil nails can be used for up to two years. Extended use may be possible, after the prior agreement of involved experts.