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Type: Conference paper
Title: 2-D and 3-D finite element analyses for the settlement due to soft ground tunnelling
Author: Karakus, M.
Fowell, R.
Citation: Tunnelling and Underground Space Technology, 2006; 21,(3-4):392
Publisher: Elsevier
Publisher Place: Online
Issue Date: 2006
ISSN: 0886-7798
Conference Name: ITA-AITES 2006 World Tunnel Congress and 32nd ITA General Assembly (2006 : Seoul)
Statement of
M. Karakus and R. J. Fowell
Abstract: The objective of this paper is to describe and evaluate two-dimensional and three-dimensional Finite Element analyses for New Austrian Tunnelling Method (NATM) in soft ground. Firstly, 2-D plane strain FE analyses were conducted to predict ground response to NATM tunnelling. In order to take account the deformations prior to lining installation Hypothetical Modulus of Elasticity (HME) soft lining approach were adopted. The best 2-D model whose predictions were in a great agreement with the field measurements was found to be sequential excavation model (SEM), which follows closely the construction sequences used in the field. Secondly, three-dimensional FEM analysis has been carried out to predict transverse and longitudinal settlement profiles. Results from the analyses compared with each other as well as field measurements recorded during construction of Heathrow Express Trial tunnel in London clay.
Description: Safety in the Underground Space - Proceedings of the ITA-AITES 2006 World Tunnel Congress and 32nd ITA General Assembly
DOI: 10.1016/j.tust.2005.12.203
Appears in Collections:Aurora harvest
Civil and Environmental Engineering publications

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