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Drilling completed on the Poggio Scudeddaro Tunnel

Drilling finished in the Poggio Scudeddaro tunnel in Messina, Sicily. The tunnel is 1,373 metres in length and work on its construction began in June 2007. In the next few months, the tunnel will be the key to the entry into service of a further section of the 83 km Montalbano Elicona-Messina methane pipeline which, once completed, will permit an increase in the volumes of natural gas imported from North Africa.

The Poggio Scudeddaro tunnel was drilled using a TBM (Tunnel Boring Machine). In this technique, the tunnel walls are lined with segments in reinforced concrete as the cutter head advances through the subsoil. The shielded cutter head used has a diameter of 3.7 m. This technique allowed drilling to progress at a rate of 22 m a day.
 
In addition, using a TBM reduced open excavations in an area populated with many species of tree including chestnuts, Holm oak, cork oak, white willow and white poplar.
At the ends of the tunnel reforestation will be carried out with plants native to the area, with associated landscaping and ancillary planting to make them blend in with the natural vegetation already present.

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updated
05 August 2016 - 16:35 CEST