Rockfall Protection Netting

Rockfall protection netting is a hexagonal woven wire mesh manufactured in the same method as the gabion
mesh fabric.

A woven mesh is preferable to a welded mesh as it can follow the contours of the rock face.
Rockfall protection can be dealt with in two ways:-

• by curtain meshing the rock faces
• by catch walling

By curtain meshing the face, spalling rocks can be either held in place by pinning the mesh to the rock strata or by draping it over the face guiding the falling rocks harmlessly to the base of the escarpment.

The mesh facing normally has vertical and/or horizontal cabling secured to the mesh/rock to provide fixity and
integrity to the jointing of the panels. It is normal to seek advice from specialist installation companies as to the design of this type of work. Additional anchoring of large unstable rock masses on the face may be required.

Catch walling is a freestanding gabion wall of sufficient mass to withstand impact of falling rocks. Location of the catch wall and height of the wall is important to ensure the trajectory of the falling rocks will be impacted on or behind the wall.

Specification

For specification details please download the Rockfall Netting PDF.