Numerical analysis of the life-time of an abandoned gypsum mine

D. Betti*, G. Buscarnera, R. Castellanza, R. Nova

*Corresponding author for this work

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

2 Scopus citations

Abstract

A numerical analysis of the evolution with time of an abandoned gypsum mine flooded by water is presented. The lay-out of the problem is shown first, together with the experimental results obtained in laboratory tests on gypsum specimens retrieved from site. An elastic-plastic strain-hardening constitutive model, capable of taking weathering effects into account, is sketched next. A chemo-mechanical analysis of the progressive dissolution of a gypsum pillar in contact with water is then presented. It is shown that it is possible to describe the dissolution process until pillar failure under the action of the overburden is achieved. The remaining life-time of the abandoned mine can be therefore estimated and a decision about the possible remedial measures taken on the basis of rational considerations.

Original languageEnglish (US)
Title of host publication12th International Conference on Computer Methods and Advances in Geomechanics 2008
Pages1210-1218
Number of pages9
Volume2
StatePublished - Dec 1 2008
Event12th International Conference on Computer Methods and Advances in Geomechanics 2008 - Goa, India
Duration: Oct 1 2008Oct 6 2008

Other

Other12th International Conference on Computer Methods and Advances in Geomechanics 2008
CountryIndia
CityGoa
Period10/1/0810/6/08

Keywords

  • Bonded geomaterials
  • Chemo-plasticity
  • Collapse
  • Gypsum
  • Mines
  • Weathering

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Applied Mathematics

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