| Document Date: 2008-09-11 05:03:19
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City Tunnel / / Company Atlas Copco / Yielding Lining Systems / Trapezoidal Segment Systems / Ventilation Systems / / Country Switzerland / Germany / Austria / New Zealand / Netherlands / Italy / / Facility Botlek Tunnel / Manapouri Underwater Tunnel / San Pellegrino Tunnel / Arch Support / Adler Tunnel / Tunnel Support / Tunnel Lining / Tunnel Boring Machine / Tunnel Boring Machines / Zçrich±Thalwil Twin-Track Tunnel / Rennsteig Tunnel / Drainage Tunnel / Tunnel Linings / Nidelbad Zçrich±Thalwil Tunnel / Stuttgart Airport Tunnel / Tunnel Track / Sieberg Tunnel / Lainz Tunnel / Tunnel Excavation / Honeycomb Segments / / Person Blade Gripper / / Position Cutter Head / Shoes and Cutter Head / Mobile Miner / Continuous Miner / / Technology Back-Cutting Technology / /
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Contents 1 Historical Development and Future Challenges . . . . . . . . . . . . . . . . 1