Traditionally, when standard and rockfall netting is not able to offer sufficient strength for certain projects, the mesh is reinforced by installing steel cables across the rockface as a secondary operation during installation.

By offering both reinforcement cables and mesh within one product, Maccaferri Steelgrid can significantly reduce installation time and costly 'face time' for the installing contractor. Steelgrid is reinforced with high tensile (1770N/mm²).

8mm diameter steel cables inserted wihtin the mesh at regular intervals in both directions (bioriented) or in one direction only (mono-oriented) to suit your application.

Maccaferri steelgrid is used in both 'passive' and 'active' project applications.

'Passive' rocks are allowed to detach from the rockface and fall, but are controlled by the steelgrid drapery mesh which encapulates the debris.

'Active' rocks are restrained from detaching or falling from the rockface by the presence of the steelgrid which is secured tightly to the rockface, using anchors and spike plates. It is important that the mesh is flexible and 'workable' enough to conform to the rockface without bridging concave areas on the slope.

 Maccaferri steelgrid is supplied in rolls, and being manufactured from our double twist mesh, steelgrid does not unravel when wires in the mesh are damaged or broken by rock impact unlike single twist chain link style or welded meshes. Its felixibility allows steelgrid to be pulled tight into the rock face using anchor plates if required. Although heavier steelgrid is as easy to install as our regular rockfall netting. Further more it will not consertina or 'hang-up' on itself during unrolling on the rock face unlike single twist 'chain-link' style netting.

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Case History

Technical Data Sheet