Soil Nailing

Soil nailing is an economical technique for stabilizing slopes and for constructing retaining walls from the top down. This ground reinforcement process uses steel tendons which are drilled and grouted into the soil to create a composite mass similar to a gravity wall. A shotcrete facing is typically applied, though many architectural options such as precast panels or "green" vegetated cells are available for permanent wall facings.

Rembco has a versatile fleet of equipment that is specially designed for soil nailing. We have found soil nail walls to be a very attractive alternative to cut retaining walls.


Nailing Advantages:

Used to follow irregular curves.
Equipment is portable for tight spaces.
The technique is flexible, easily modified.
Creates less noise and traffic obstructions.
Less impact on nearby properties.

Requires minimum shoring space.

Animation

To begin the first segment of a soil nail wall, cut a five foot face along the line of the future wall.

Drill a horizontal row of holes into the cut face on about five foot centers. Drill through the unstable zone and into the stable zone.

Pump grout into each hole, filling it from the bottom-up.

Insert threaded bar or tendon into each hole.

Apply first layer of reinforced shotcrete, leave soil nail heads protruding.

Install bearing plates and locking nuts on each soil nail head.

Apply second coat of reinforced shotcrete, This segment of the soil nail wall is now complete.

Build another wall segment along the same line and directly below the first segment.

Continue adding segments until base of the soil nail wall is at desired elevation.

Slope Stabilization and
Soil Nailing Literature