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Steelgrid: M

In cases where standard rockfall netting is not able to provide sufficient strength for rockfall protection, the DT mesh is reinforced by installing steel cables of 8 mm diameter at regular intervals. By offering both reinforcement cables and mesh within one composite product, Maccaferri Steelgrid can significantly reduce installation time for the installing contractor. The Steelgrid cables can either run longitudinally down the slope (Steelgrid MO) or longitudinally and transversally (Steelgrid BO). Steelgrid is reinforced with high tensile strength (1770N/mm˛) wires.

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 encapsulates 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 flexibility 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 'hang-up' on itself during unrolling on the rock face unlike single twist 'chain-link' style netting.



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Solutions:- Retaining Structures | Reinforced Soil Walls | Reinforced Soil Slopes | Lining Solutions | Piled Embankments/ Basal Reinforcements | Separation/ Filtration/ Drainage |
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