Is Barbed Wire Effective in Earthbag Retaining Walls?

Earthbag Wall Basics

Earthbag walls are built by stacking polypropylene bags filled with compacted soil and stabilized with barbed wire or geotextile fabrics. When used correctly, barbed wire can help prevent soil erosion and provide additional support to the wall. It’s essential to space the wire at the correct intervals, typically 12-18 inches apart, and ensure it’s tight enough to prevent sagging.

Barbed Wire Installation

To effectively use barbed wire in earthbag retaining walls, start by installing a geotextile fabric at the base of the wall to prevent soil from slipping behind the bags. Next, insert the barbed wire through the fabric and bags at the desired spacing. Use wire ties or clips to secure the wire to the bags and ensure it’s tight enough to prevent sagging. When building a dome or curved wall, use a combination of barbed wire and geotextile fabrics to provide additional support and prevent soil from slipping down the wall.

Plaster and Finishing Touches

Once the earthbag wall is complete, apply a layer of plaster or stucco to protect the bags from the elements and provide a smooth surface. When applying plaster to a barbed wire-reinforced wall, be sure to use a wire brush to remove any debris or dust from the wire before applying the plaster. This will ensure a strong bond between the plaster and the wire, and prevent any damage to the wall.