1. 150 years reliable railway tunnels – Extending the hybrid method for the long‐term safety assessment.
- Author
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Hellmich, Christian, Pichler, Bernhard, Heissenberger, Roman, and Moritz, Bernd
- Subjects
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TUNNELS , *BUILDING sites , *TUNNEL design & construction , *RAILROADS , *RAILROAD safety measures , *TUNNEL lining , *FORD F-Series trucks - Abstract
Quantification of the level of loading of shotcrete supports from measured displacements of NATM‐driven tunnels is common practice in Austria. At construction sites of the Austrian Federal Railways (OeBB), a hybrid method developed at the TU Wien (Vienna University of Technology) has been successfully applied over the last 15 years. Because OeBB tunnels are designed for a lifetime of 150 years, the long‐term reliability of the support structures is of paramount interest. This provides the motivation for the development of hybrid methods applicable during the entire service life of tunnels, including also inner linings and segmental linings. The required extensions are intended to be carried out within a research program. The paper describes the state‐of‐the‐art and projected future developments. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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