• GALLERIA DI BASE DELLA FURKA. RISANAMENTO E AMPLIAMENTO DELLA VOLTA
• GALLERIA DI DRENAGGIO DI BRIENZ (GR)
• ALBULA - LOTTO 120
• CEVA - TUNNEL DI PINCHAT
• N2 GALLERIA MELIDE-GRANCIA - Lotto lavori principali
• GALLERIA FERROVIARIA MAGNACUN - ALLARGAMENTO DEL PROFILO LIBERO
• KERENZERBERGTUNNEL LOS 1 SiSto
• GALLERIA DI BASE DEL CENERI - ARMAMENTO FERROVIARIO E LOGISTICA
• VALICO FERROVIARIO DI LUINO - MANUTENZIONE E ADEGUAMENTO SAGOMA
• PASSANTE FERROVIARIO A SAN GALLO - RUCKHALDE
• CUNICOLO CAVI VEZIA CRESPERA - ELETTRODOTTI
• ALBULA LOTTI 103 E 103A
• GALLERIA VEDEGGIO-CASSARATE - LOTTO G10
• GALLERIA DI BASE DEL SAN GOTTARDO - LOTTO 553
• GALLERIA DI BASE DEL SAN GOTTARDO - LOTTO 451
• GALLERIA DI BASE DEL CENERI - LOTTO 751
• GALLERIA DI BASE DEL CENERI - LOTTO 853
• GALLERIA DI BASE DEL CENERI - LOTTO 854
• GALLERIA DI BASE DEL SAN GOTTARDO - LOTTO 360

 

FURKA BASE TUNNEL. RENOVATION AND EXTENSION OF THE TUNNEL VAULT

The following principal activities are planned for the tunnel repair and renovation:

In the areas of wet spots, water penetration and dripping points, the mountain water is collected directly at the entry point and fed to the drain pipe (cutting operations)

Voids in the existing cladding (sprayed mortar, shotcrete)

Concreting operations for recesses, walls, retaining walls, vault

The renovation work on the vault takes place during the night shifts. After each night shift, the tunnel is released for rail traffic.

For the execution of difficult tasks, work trains are planned with special machines and all necessary pieces of equipment. Special attention was paid in the project preparation phase to employ modern technology, in order to master the difficult night operations.