Influence of geometrical and operational machine characteristics on ground movements during EPB tunnelling

Dimitris Litsas, Panagiotis Sitarenios, Michael Kavvadas

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

This paper studies numerically the influence of different: a) steering gap openings; b) tail grouting pressures and; c) steering gap pressure gradients, on surface settlements induced during EPB tunnelling. The numerical study is performed with an advanced 3D finite element model in the Simulia Abaqus program, which provides detailed and realistic simulation of EPB tunnelling. The results reveal a significant effect of the size of the steering gap and its filling conditions (empty, full, partially filled with process liquids), while subsequent tail grouting proves to be incapable to reverse the adverse effects in ground surface settlement caused by various volume loss sources.
Original languageEnglish
Title of host publication EURO:TUN 2017 : computational methods in tunneling and subsurface engineering : proceedings of the Fourth International Conference on Computational Methods in Tunneling and Subsurface Engineering, Innsbruck University, Austria, April 18-20, 2017
Place of PublicationInnsbruck, Austria
PublisherUniversität Innsbruck
Pages143-150
Number of pages8
Volume1
ISBN (Print)9783903030350
Publication statusPublished - Apr 2017
EventIV International Conference on Computational Methods in Tunneling and Subsurface Engineering - Innsbruck, Austria
Duration: 18 Apr 201720 Apr 2017
Conference number: 4

Conference

ConferenceIV International Conference on Computational Methods in Tunneling and Subsurface Engineering
Abbreviated titleEURO:TUN 2017
CountryAustria
CityInnsbruck
Period18/04/1720/04/17

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Litsas, D., Sitarenios, P., & Kavvadas, M. (2017). Influence of geometrical and operational machine characteristics on ground movements during EPB tunnelling. In EURO:TUN 2017 : computational methods in tunneling and subsurface engineering : proceedings of the Fourth International Conference on Computational Methods in Tunneling and Subsurface Engineering, Innsbruck University, Austria, April 18-20, 2017 (Vol. 1, pp. 143-150). Innsbruck, Austria: Universität Innsbruck.