Isogeometric boundary element analysis of underground excavations

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The aim of the paper is to present a novel approach for the analysis of underground excavation problems. Non-Uniform Rational B-Spines (NURBS) are used for the description of the geometry and for the approximation of the unknowns. The resulting equation system with the IGABEM has much fewer unknowns than conventional BEM approaches and an excellent solution quality is obtained. NURBS are also used for the geometrical description of geological inclusions, which can have properties different to the surrounding rock mass and can exhibit inelastic material behaviour. This will be domonstrated on a practical example in geomechanics, a 3-D simulation of a cavern excavation of a hydropower station.

Original languageEnglish
Title of host publicationProceedings of the 6th European Conference on Computational Mechanics
Subtitle of host publicationSolids, Structures and Coupled Problems, ECCM 2018 and 7th European Conference on Computational Fluid Dynamics, ECFD 2018
EditorsRoger Owen, Rene de Borst, Jason Reese, Chris Pearce
PublisherInternational Centre for Numerical Methods in Engineering, CIMNE
Pages2281-2292
Number of pages12
ISBN (Electronic)9788494731167
Publication statusPublished - 1 Jan 2020
Event6th ECCOMAS European Conference on Computational Mechanics: Solids, Structures and Coupled Problems, ECCM 2018 and 7th ECCOMAS European Conference on Computational Fluid Dynamics, ECFD 2018 - Glasgow, United Kingdom
Duration: 11 Jun 201815 Jun 2018

Conference

Conference6th ECCOMAS European Conference on Computational Mechanics: Solids, Structures and Coupled Problems, ECCM 2018 and 7th ECCOMAS European Conference on Computational Fluid Dynamics, ECFD 2018
CountryUnited Kingdom
CityGlasgow
Period11/06/1815/06/18

Keywords

  • Inclusions
  • Isogeometric analysis
  • Non-linear BEM

ASJC Scopus subject areas

  • Computer Science Applications
  • Computational Theory and Mathematics

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