Helical Soil Nails

Helical Soil Nails

Soil nailing is a top-down earth retention method that utilizes a grid of individual reinforcing strands or members installed within a soil mass to create an internally stable gravity retaining wall system. This system relies on slight movement of the soil to mobilize the soil shear strength along the lengths of the nails. This movement puts the largest stress in the soil nail near the failure plane and away from the wall face, allowing for more economical wall construction details.

Helical soil nails

Foundation Supportworks utilizes the same solid square bar for soil nails that it uses for its tiebacks, Models HA150 (1.50") and HA175 (1.75"). However, unlike helical tiebacks, helical soil nails utilize helix plates of uniform diameter spaced along their entire length.

For additional information, including technical product specifications, refer to the Supportworks Technical Manual

Resources

Model HS150
Model HS150 consists of 1.5" round corner solid square bar shafts, is available as plain uncoated steel or with a hot-dip galvanized coating, and comes with either 6" or 8" diameter helix plates.

Model HS175
The HS175 system uses 1.75" round corner solid square bar shafts, is available as plain uncoated steel or with a hot-dip galvanized coating, and comes with either 6" or 8" diameter helix plates.