Details
| Original language | English |
|---|---|
| Title of host publication | 44th US Rock Mechanics Symposium and 5th US-Canada Rock Mechanics Symposium 2010 |
| Pages | 378-390 |
| Volume | 1-3 |
| Publication status | Published - 2010 |
| Event | 44th US Rock Mechanics Symposium and the 5th US/Canada Rock Mechanics Symposium - Salt Lake City, United States Duration: 27 Jun 2010 → 30 Jun 2010 |
Abstract
In numerical simulations for the design and stability analysis of underground openings in rock salt, the geomechanical and hydraulic behavior of the host rock is described with constitutive models. In recent decades, various advanced models and procedures for the determination of salt-type specific parameter values and for the handling of numerical simulations have been developed. Between 2004 and 2010, six project partners have been funded by the German Federal Ministry of Education and Research in two joint projects in order to document, check and compare their constitutive models for rock salt. The results of specific benchmark calculations demonstrate that the models describe correctly the relevant deformation phenomena in rock salt under various influences, i.e. transient and steady-state creep, the evolution of dilatancy and damage, short-term failure and long-term creep failure, post-failure behavior and residual strength. This ensures a high reliability of simulation results e.g. in the assessment, proof and long-term prediction of integrity of the geological barrier around an underground repository for hazardous wastes, or in the stability analysis of gas and oil storage caverns. In this contribution, a brief description of the involved constitutive models, some results of the benchmark calculations, and the conclusions from the results are presented.
ASJC Scopus subject areas
- Earth and Planetary Sciences(all)
- Geology
- Earth and Planetary Sciences(all)
- Geotechnical Engineering and Engineering Geology
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44th US Rock Mechanics Symposium and 5th US-Canada Rock Mechanics Symposium 2010. Vol. 1-3 2010. p. 378-390.
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Benchmarking of geomechanical constitutive models for rock salt
AU - Günther, R. M.
AU - Salzer, K.
AU - Minkley, W.
AU - Pudewills, A.
AU - Leuger, B.
AU - Zapf, D.
AU - Staudtmeister, K.
AU - Rokahr, R.
AU - Herchen, K.
AU - Wolters, R.
AU - Lux, K. H.
AU - Schulze, O.
AU - Heemann, U.
AU - Hunsche, U.
AU - Hampel, Andrea
PY - 2010
Y1 - 2010
N2 - In numerical simulations for the design and stability analysis of underground openings in rock salt, the geomechanical and hydraulic behavior of the host rock is described with constitutive models. In recent decades, various advanced models and procedures for the determination of salt-type specific parameter values and for the handling of numerical simulations have been developed. Between 2004 and 2010, six project partners have been funded by the German Federal Ministry of Education and Research in two joint projects in order to document, check and compare their constitutive models for rock salt. The results of specific benchmark calculations demonstrate that the models describe correctly the relevant deformation phenomena in rock salt under various influences, i.e. transient and steady-state creep, the evolution of dilatancy and damage, short-term failure and long-term creep failure, post-failure behavior and residual strength. This ensures a high reliability of simulation results e.g. in the assessment, proof and long-term prediction of integrity of the geological barrier around an underground repository for hazardous wastes, or in the stability analysis of gas and oil storage caverns. In this contribution, a brief description of the involved constitutive models, some results of the benchmark calculations, and the conclusions from the results are presented.
AB - In numerical simulations for the design and stability analysis of underground openings in rock salt, the geomechanical and hydraulic behavior of the host rock is described with constitutive models. In recent decades, various advanced models and procedures for the determination of salt-type specific parameter values and for the handling of numerical simulations have been developed. Between 2004 and 2010, six project partners have been funded by the German Federal Ministry of Education and Research in two joint projects in order to document, check and compare their constitutive models for rock salt. The results of specific benchmark calculations demonstrate that the models describe correctly the relevant deformation phenomena in rock salt under various influences, i.e. transient and steady-state creep, the evolution of dilatancy and damage, short-term failure and long-term creep failure, post-failure behavior and residual strength. This ensures a high reliability of simulation results e.g. in the assessment, proof and long-term prediction of integrity of the geological barrier around an underground repository for hazardous wastes, or in the stability analysis of gas and oil storage caverns. In this contribution, a brief description of the involved constitutive models, some results of the benchmark calculations, and the conclusions from the results are presented.
UR - http://www.scopus.com/inward/record.url?scp=78751534425&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:78751534425
SN - 978-1-61782-089-2
VL - 1-3
SP - 378
EP - 390
BT - 44th US Rock Mechanics Symposium and 5th US-Canada Rock Mechanics Symposium 2010
T2 - 44th US Rock Mechanics Symposium and the 5th US/Canada Rock Mechanics Symposium
Y2 - 27 June 2010 through 30 June 2010
ER -