Investigation of rock mass stability around tunnels in an underground mine in USA by 3-D numerical modeling

Yan Xing, Pinnaduwa Kulatilake, L. A. Sandbak

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

Abstract

The purpose of this study is to evaluate the rock mass stability around the tunnels by three-dimensional (3-D) numerical modeling. Complex geological and tunnel features have been included in the model using the software package 3DECTM. Based on the available information on stratigraphy, geological structures, and mechanical properties of rock masses and discontinuities from the underground mine, 3-D stress analyses were performed on various cases with different K0 (lateral stress ratio) values, constitutive models, as well as support systems. Relations between these factors and the distributions of stress, displacement, and failure zones around the tunnels were obtained and discussed. Finally, comparisons between the field deformation measurements and numerical simulations are used as validations for the simulations, helping to determine the appropriate K0 value and material constitutive models for the underground mine.

Original languageEnglish (US)
Title of host publication35th International Conference on Ground Control in Mining 2016
PublisherSociety for Mining, Metallurgy and Exploration
Pages213-221
Number of pages9
ISBN (Electronic)9781510860292
StatePublished - Jan 1 2016
Event35th International Conference on Ground Control in Mining 2016 - Morgantown, United States
Duration: Jul 26 2016Jul 28 2016

Other

Other35th International Conference on Ground Control in Mining 2016
CountryUnited States
CityMorgantown
Period7/26/167/28/16

Keywords

  • 3DEC
  • Rock mass stability
  • Strain-softening
  • Support system
  • Underground mine

ASJC Scopus subject areas

  • Geology
  • Mechanical Engineering
  • Geotechnical Engineering and Engineering Geology

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  • Cite this

    Xing, Y., Kulatilake, P., & Sandbak, L. A. (2016). Investigation of rock mass stability around tunnels in an underground mine in USA by 3-D numerical modeling. In 35th International Conference on Ground Control in Mining 2016 (pp. 213-221). Society for Mining, Metallurgy and Exploration.