Rock and chalk escarpments can be provided with a mesh facing (curtaining) to prevent or guide spalling rocks and debris on the face so that they do not cause injury.
Generally on rock faces the mesh is anchored and cabled at the top and bottom whereby the falling rock is guided to the base of the escarpment.
On chalk escarpments where the particle size is smaller, it is preferable to secure the mesh to the face in a grid pattern to prevent the debris from falling. Where the debris is smaller than the mesh, a secondary finer mesh or biodegradable fabric should be used behind the principle protection mesh.
Specification for mesh fabric is generally as for gabions, but material is supplied in roll form. |
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