Rock rheology - Time dependence of dilation and stress around a tunnel

P. Ván, Z. Szarka

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

4 Citations (Scopus)

Abstract

There are several areas of engineering practice where material models considering memory effects play and important role. Among the different rate dependent constitutive laws simplicity and thermodynamic consistency are essential. Here we consider a rock continuum described by the Poynting-Thomson material model and give a new analytic solution around a circular tunnel. The time changes of dilation, strain and stress are calculated as a function of material parameters. One of the important properties of the solution is the existence of prompt dilations after the opening. This important qualitative effect cannot be easily observed, however, it can contribute to the asymptotic behavior of the rock mass. The relation of the results to numerical calculations and more complex geometries is mentioned. The importance in tunnel construction and durability is emphasized.

Original languageEnglish
Title of host publicationProceedings of the International Symposium of the International Society for Rock Mechanics, Eurock 2006 - Eurock 2006 Multiphysics Coupling and Long Term Behaviour in Rock Mechanics
PublisherTaylor and Francis/ Balkema
Pages357-363
Number of pages7
ISBN (Print)0415410010, 9780415410014
DOIs
Publication statusPublished - 2006
EventInternational Symposium of the International Society for Rock Mechanics, Eurock 2006 - Eurock 2006 Multiphysics Coupling and Long Term Behaviour in Rock Mechanics - Liege, Belgium
Duration: May 9 2006May 12 2006

Publication series

NameProceedings of the International Symposium of the International Society for Rock Mechanics, Eurock 2006 - Eurock 2006 Multiphysics Coupling and Long Term Behaviour in Rock Mechanics

Other

OtherInternational Symposium of the International Society for Rock Mechanics, Eurock 2006 - Eurock 2006 Multiphysics Coupling and Long Term Behaviour in Rock Mechanics
CountryBelgium
CityLiege
Period5/9/065/12/06

ASJC Scopus subject areas

  • Geophysics

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    Ván, P., & Szarka, Z. (2006). Rock rheology - Time dependence of dilation and stress around a tunnel. In Proceedings of the International Symposium of the International Society for Rock Mechanics, Eurock 2006 - Eurock 2006 Multiphysics Coupling and Long Term Behaviour in Rock Mechanics (pp. 357-363). (Proceedings of the International Symposium of the International Society for Rock Mechanics, Eurock 2006 - Eurock 2006 Multiphysics Coupling and Long Term Behaviour in Rock Mechanics). Taylor and Francis/ Balkema. https://doi.org/10.1201/9781439833469.ch51