Tarnato Quarry

Maccaferri proposed a 9m high reinforced soil solution using the Terramesh® System. The face of the structure was 75deg from horizontal thereby increasing the available area for the access road. Terramesh® features a gabion fascia unit with an integral woven steel mesh geogrid ‘tail’. This geogrid is placed horizontally between layers of compacted structural backfill, reinforcing it and making the soil perform far better than it would do in its natural ‘unreinforced’ state.

This uniform reinforced block of soil was then capable of accommodating the 20kN/m2 surcharge expected from the delivery trucks. Terramesh® forms flexible reinforced soil structures and can accommodate far greater differential settlements than any concrete block or precast alternative. On taller walls where forces within the embankment are higher, the Terramesh® steel geogrids are supplemented by polymeric Paragrid, installed in conjunction with them.

This solution was accepted by Terranto de Pol. Although they had not installed Terramesh® before, Taranto de Pol had an on-site labour force and decided that following on-site training by Maccaferri personnel, they would construct the wall themselves. This confidence was given to Tarranto, knowing that they had a reputable supplier to whom they could turn if they needed on-site assistance.