The Martina tunnel boring machine is a hard rock tunnel boring machine built by Herrenknecht AG. It is the largest hard rock tunnel boring machine in the world and has been used for drilling the Sparvo Tunnel, a part of the larger Variante di Valico project in Italy.[1]
The Martina has a shield diameter of 15.55 metres, an excavation diameter of 15.62 metres, a length of 130 metres, a total weight of 4500 tonnes and an annual operating consumption of 62 million kWh. The machine started work on the Sparvo tunnel in 2011, with drilling of the 2430-metre north tube completed in 2012. The drilling of the 2600-metre south tube was finished in 2013, bringing the 5-kilometre tunneling project to an end.[2][3][4]
martina, tunnel, boring, machine, martina, tunnel, boring, machine, hard, rock, tunnel, boring, machine, built, herrenknecht, largest, hard, rock, tunnel, boring, machine, world, been, used, drilling, sparvo, tunnel, part, larger, variante, valico, project, it. The Martina tunnel boring machine is a hard rock tunnel boring machine built by Herrenknecht AG It is the largest hard rock tunnel boring machine in the world and has been used for drilling the Sparvo Tunnel a part of the larger Variante di Valico project in Italy 1 Contents 1 Specifications and operations 2 See also 3 References 4 External linksSpecifications and operations editThe Martina has a shield diameter of 15 55 metres an excavation diameter of 15 62 metres a length of 130 metres a total weight of 4500 tonnes and an annual operating consumption of 62 million kWh The machine started work on the Sparvo tunnel in 2011 with drilling of the 2430 metre north tube completed in 2012 The drilling of the 2600 metre south tube was finished in 2013 bringing the 5 kilometre tunneling project to an end 2 3 4 See also editList of longest tunnels List of long tunnels by type List of mining companiesReferences edit A Herrenknecht giant reaches its target 17 May 2016 TBM Martina ended Sparvo tunnel tunnelbuilder com News Significant breakthrough at Sparvo TunnelTalk Toto Costruzioni Generali External links edittunneltalk website tunnelbuilder website Retrieved from https en wikipedia org w index php title Martina tunnel boring machine amp oldid 1183963916, wikipedia, wiki, book, books, library,
