Errichtung eines Eisenbahntunnels in Deckelbauweise über dem Hauptsammler West der Stadt Stuttgart

Translated title of the contribution: Construction of a railway tunnel above the main drainage tunnel of Stuttgart using the cut-and-cover method

Andreas-Nizar Granitzer*, Franz Tschuchnigg, Wolfgang Summerer, Robert Galler, Thomas Stoxreiter

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

As part of the complete restructuring of the Stuttgart rail node, the suburban railway passage is partially relocated underground. Due to boundary conditions in the area of Block 18 of the cut-and-cover method, the existing main drainage tunnel had to be crossed whereas the remaining overburden approached a minimum value of approximately 1,0 m above the tunnel crown. In order to restrict the excavation-induced tunnel heave to stay below proposed alarm values, different designs were considered. Detailed numerical investigations allowed for an optimized planning of the initial design, thereby lowering the constructional effort significantly.
The first part of this paper discusses selected project constraints as well as the developed design approaches. The main part gives an overview of the conducted numerical analyses and focuses on both, the modelling of the drainage tunnel and the development of bending moments during construction. In the final section, selected aspects of the construction are highlighted.
Translated title of the contributionConstruction of a railway tunnel above the main drainage tunnel of Stuttgart using the cut-and-cover method
Original languageGerman
Pages (from-to)156-164
JournalBauingenieur
Volume96
Issue number5
DOIs
Publication statusPublished - 1 May 2021

Keywords

  • Design approach
  • Tunnel
  • Finite Element Analysis

Fields of Expertise

  • Sustainable Systems

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