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Lonato Tunnel Project – TBM Breaks Through

TBM Breakthrough on Lonato Tunnel

Completion of excavation process on the Lonato del Garda tunnel on Italy’s Brescia-Verona high-speed railway has been announced by Pini Group reports on LinkedIn. The 10m diameter EPBM Martina broke through on Wednesday, completing the second of two single-track tubes.

Tunneling through the Garda Morainic Amphitheatre, comprising glacial and fluvio-glacial deposits and aquifers, and beneath the A4 Milan-Venice motorway where the overburden was low, are the challenges of this project.

The path that this new line with 48km length, being constructed for Rete Ferroviaria Italiana, crosses the regions of Lombardy and Veneto. The tunnels Calcinato II and San Giorgio in Salici are the other two major tunnels of this project, that are due to be dug by conventional method, including cut and cover sections.

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