PDF《LZ01-370353-v3》

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2016 LZ01-370353-v3 Drive by tunnel boring machine (TBM) 97.139 km (64 %) Number of machines

4 machines Excavation diameter in tunnel sections with TBM drive ? Erstfeld ? Amsteg ? Faido ? Bodio 9.58 m 9.58 m 9.43 m 8.83 m Length of TBM (incl. trailer) ? Erstfeld and Amsteg ? Faido ? Bodio

441 m

450 m

377 m Weight of TBM ? Erstfeld and Amsteg ? Faido ? Bodio 3'

000 t 3'

400 t 2'

500 t Driving power of TBM (10 motors) 3'

500 kW Total installed power 7'

800 kVA Feeding force 27'

500 kN (at

350 bar) Max. permissible contact pressure drilling head 15'

930 kN Drilling head revolutions Max.

6 rpm Number of roll chisels in the TBM cutter head ? Erstfeld and Amsteg ? Faido ? Bodio

62 roll chisels

66 roll chisels

60 roll chisels AlpTransit Gotthard AG Seite

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9 Project data raw construction Gotthard Base Tunnel June

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2016 LZ01-370353-v3 Advance rates achieved Average advance rate (per theoretical driving day, i.e. incl. downtime) ? Erstfeld east / west ? Amsteg east / west ? Faido ? Bodio Advance rate excl. downtime (per actual driving day = TBM performance) ? Erstfeld east / west ? Amsteg east / west ? Faido ? Bodio Maximum performance ? Erstfeld (18.07.2009 TBM West) on 18/19.7.2009 in

24 h ? Amsteg (09.07.2004 TBM West) ? Faido (09.11.2008 TBM West) ? Bodio (10.12.2005 TBM East) 14.27 / 14.21 m/wd 11.05 / 10.60 m/wd 10.50 / 9.92 m/wd 10.83 / 11.76 m/wd 18.06 / 17.57 m/wd 14.07 / 15.83 m/wd 12.41 / 12.50 m/wd 12.47 / 14.04 m/wd 39.0 m/wd 56.0 m/wd 40.1 m/wd 36.0 m/wd 38.4 m/wd Breakthrough Bodio C Faido east (15 km) Sissi Bodio C Faido west (15 km) Heidi Amsteg C Sedrun east (11,4 km) Gabi I Amsteg C Sedrun west (11,4 km) Gabi II Erstfeld C Amsteg east (7,1 km) Gabi I Erstfeld C Amsteg west (7,1 km) Gabi II Final Breakthrough Faido C Sedrun east (12 km) Sissi Faido C Sedrun west (12 km) Heidi 11.2002 C 06.0........