Mechanised Shield Tunnelling - Wiley-VCH

978-3-433-02995-4 Bernhard MaidlMartin HerrenknechtUlrich MaidlGerhard WehrmeyerMechanised Shield Tunnelling2nd EditionMechanised Shield Tunnelling , 2nd Edition B. Maidl, M. Herrenknecht, U. Maidl, G. WehrmeyerCopyright 2011 Ernst & Sohn, Berlin6 The tunnel GeneralThe tunnel lining has to permanently guarantee structural safety, durability and service-ability for the entire duration of the use of the tunnel . It supports the interior against the surrounding ground, forms a barrier against the penetration or emergence of water, transfers the internal loads from installations and trafic and, depending on the design of the TBM, may serve as an abutment for the thrust cylinders. The design and constructional detailing of the lining has to meet the requirements of the tunnel use, the acting loads and the conditions imposed by the construction support with shotcrete and rock bolts is only an option with a gripper TBM.

120 6 The tunnel lining a) b) Figure 6-2 Construction principle of watertight and drained tunnel linings a) Botlek Tunnel, internal diameter 8.65 m, single-layer, pressure-resistant b) Murgenthal Tunnel, internal diameter 10.64 m, double-layer, drained

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  Tunnel, Shield, Lining, Tunnelling, Tunnel lining, Mechanised shield tunnelling, Mechanised

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