| Issue |
E3S Web Conf.
Volume 371, 2023
International Scientific Conference “Fundamental and Applied Scientific Research in the Development of Agriculture in the Far East” (AFE-2022)
|
|
|---|---|---|
| Article Number | 02029 | |
| Number of page(s) | 11 | |
| Section | Innovations in Energy Efficiency for Buildings and Structures | |
| DOI | https://doi.org/10.1051/e3sconf/202337102029 | |
| Published online | 28 February 2023 | |
Pilot project: applying the Tunnel-in-Tunnel method on DB electrified routes
Institute for Underground Construction, 86692 FH Münster, Germany
* Corresponding author: bodo.tauch@deutschebahn.com
This report deals with the refurbishing of the Petersberg Tunnel. In this connection, for the first time within the scope of the pilot project, the tunnel-in-tunnel method was applied on an electrified line belonging to the DB. The tunnel cross-section was enlarged within the scope of the excavation. These activities were executed with the aid of a tunnel enlargement system (TES). Towards this end, the existing overhead line for electrification of the route had to be integrated in the excavation. Once the driving operations had been completed, the tunnel inner shell made of reinforced concrete was produced. Thanks to this project the spectrum of refurbishing tunnels has been performed.
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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