RATDAMPER - A Numerical Model for Coupling Mechanical and Hydrological Properties within the Disturbed Rock Zone at the Waste Isolation Pilot Plant

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Description

A numerical model for predicting damage and permeability in the disturbed rock zone (DRZ) has been developed. The semi-empirical model predicts damage based on a function of stress tensor invariant. For a wide class of problems hydrologic/mechanical coupling is necessary for proper analysis. The RATDAMPER model incorporates dilatant volumetric strain and permeability. The RATDAMPER model has been implemented in a weakly coupled code, which combines a finite element structural code and a finite difference multi-phase fluid flow code. Using the development of inelastic volumetric strain, a value of permeability can be assigned. This flexibility allows empirical permeability functional relationships to ... continued below

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8 p.

Creation Information

RATH,JONATHAN S.; PFEIFLE,T.W. & HUNSCHE,U. November 27, 2000.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM, and Livermore, CA (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

A numerical model for predicting damage and permeability in the disturbed rock zone (DRZ) has been developed. The semi-empirical model predicts damage based on a function of stress tensor invariant. For a wide class of problems hydrologic/mechanical coupling is necessary for proper analysis. The RATDAMPER model incorporates dilatant volumetric strain and permeability. The RATDAMPER model has been implemented in a weakly coupled code, which combines a finite element structural code and a finite difference multi-phase fluid flow code. Using the development of inelastic volumetric strain, a value of permeability can be assigned. This flexibility allows empirical permeability functional relationships to be evaluated.

Physical Description

8 p.

Notes

INIS; OSTI as DE00768083

Medium: P; Size: 8 pages

Source

  • 4th North American Rock Mechanics Symposium (NARMS), Seattle, WA (US), 07/31/2000--08/03/2000

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  • Report No.: SAND99-2785C
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 768083
  • Archival Resource Key: ark:/67531/metadc716973

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  • November 27, 2000

Added to The UNT Digital Library

  • Sept. 29, 2015, 5:31 a.m.

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  • April 11, 2017, 6:12 p.m.

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RATH,JONATHAN S.; PFEIFLE,T.W. & HUNSCHE,U. RATDAMPER - A Numerical Model for Coupling Mechanical and Hydrological Properties within the Disturbed Rock Zone at the Waste Isolation Pilot Plant, article, November 27, 2000; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc716973/: accessed September 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.