Advanced 3-D Boundary Element analysis of underground excavations

Gernot Beer*, Christian Duenser

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

In this work a novel approach is presented for the Boundary Element analysis of underground excavation problems. Firstly, Non-Uniform Rational B-Spines (NURBS) are used for the description of the geometry and for the approximation of the unknowns. This results in a significant decrease in the number of parameters used for an accurate description of the geometry as well as a decrease in the number of degrees of freedom required for good quality results. Secondly, NURBS are also used for the description of the geometry of geological inclusions, which can have properties different to the rock mass and can experience inelastic behavior.

Original languageEnglish
Pages (from-to)196-207
Number of pages12
JournalComputers and Geotechnics
Volume101
DOIs
Publication statusPublished - Sep 2018

Keywords

  • BEM
  • Elasto-plasticity
  • Inclusions
  • Isogeometric analysis

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Computer Science Applications

Fields of Expertise

  • Advanced Materials Science
  • Information, Communication & Computing

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