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Tunnel Linings
Neu, Gerrit Emanuel; Christ, Florian; Iskhakov, Tagir et al.
2023In Interaction Modeling in Mechanized Tunneling
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Keywords :
Earth and Planetary Sciences (all); Engineering (all)
Abstract :
[en] In this chapter, important research results for the development of a robust and damage- tolerant multimaterial tunnel lining are presented. This includes the production, design and optimization of fiber-reinforced hybrid segmental lining systems based on numerical models and experimental investigations under tunneling loads. In addition, novel tail void grouting materials are developed and optimized regarding their infiltration and hardening behavior while taking the interaction with the surrounding ground into account. In order to expand the applicability of mechanized tunneling regarding soils characterized by significant swelling potential due to water uptake by clay minerals, a deformable segmental lining system is presented. The risk of damage due to high localized loads is reduced by the integration of additional radial protective layers on the lining segments and a compressible annular gap grout, which protect the tunnel structure by undergoing high deformations after reaching a certain yielding load. However, the deformability of such support systems affects the distribution of the stresses around the tunnel which governs the magnitude and buildup of the swelling pressure in the soil. Therefore, the development of damage tolerant lining systems requires a material and structural design which ensures an optimal soil-structure interaction through a synergy of computational and experimental techniques.
Disciplines :
Civil engineering
Author, co-author :
Neu, Gerrit Emanuel ;  Ruhr-Universität Bochum, Bochum, Germany
Christ, Florian ;  Ruhr-Universität Bochum, Bochum, Germany
Iskhakov, Tagir ;  Ruhr-Universität Bochum, Bochum, Germany
Krikelis, Christina;  Ruhr-Universität Bochum, Bochum, Germany
Petraroia, Diego Nicolás ;  Ruhr-Universität Bochum, Bochum, Germany
Plückelmann, Sven;  Ruhr-Universität Bochum, Bochum, Germany
Schoen, Maximilian ;  Ruhr-Universität Bochum, Bochum, Germany
Breitenbücher, Rolf ;  Ruhr-Universität Bochum, Bochum, Germany
ALIMARDANI LAVASAN, Arash  ;  University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE)
Mark, Peter ;  Ruhr-Universität Bochum, Bochum, Germany
Meschke, Günther ;  Ruhr-Universität Bochum, Bochum, Germany
Timothy, Jithender J. ;  Centre for Building Materials, TU Munich, Munich, Germany
External co-authors :
yes
Language :
English
Title :
Tunnel Linings
Publication date :
2023
Main work title :
Interaction Modeling in Mechanized Tunneling
Publisher :
Springer Nature
ISBN/EAN :
978-3-03-124066-9
978-3-03-124065-2
Peer reviewed :
Peer reviewed
Funders :
Ruhr Universität Bochum, Germany
Available on ORBilu :
since 23 December 2023

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