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DOI 10.2172/641084
Title Estimating changes in rock permeability due to thermal-mechanical effects
Creator/Author Wang, H.F. ; Blair, S.C. ; Berge, P.A.
Publication Date1997 Oct 01
OSTI IdentifierOSTI ID: 641084; Legacy ID: DE98057731
Report Number(s)UCRL-JC--128799
DOE Contract NumberW-7405-ENG-48
DOI10.2172/641084
Other Number(s)Other: ON: DE98057731; CNN: W-7405-Eng-48
Resource TypeTechnical Report
Resource RelationOther Information: PBD: 1 Oct 1997
Research OrgLawrence Livermore National Lab., CA (United States)
Sponsoring OrgUSDOE Office of Civilian Radioactive Waste Management, Washington, DC (United States)
Subject58 GEOSCIENCES ;05 NUCLEAR FUELS; ROCKS; PERMEABILITY; YUCCA MOUNTAIN; MATHEMATICAL MODELS; FRACTURES; RADIOACTIVE WASTE STORAGE; GEOLOGY; STRESSES
Description/AbstractThis paper presents results of a modeling study of changes in fracture permeability due to thermal-mechanical effects associated with the potential geological repository at Yucca Mountain. a methodology for estimating changes in permeability is developed and applied to the Drift Scale Test (DST) now being conducted in the Exploratory Studies Facility (ESF) at Yucca Mountain. Temperature, stress, and displacement of rock in the heated zone are presented along with predicted zones where slip on fractures may occur. The zones of predicted fracture slip are used as a basis for predicting where permeability may be changed. this new procedure goes beyond previous models that relate stress to strain or displacement, and provides information about rock response that is needed for design of future tests at Yucca Mountain. Our results also contribute to the understanding of coupled processes in the near-field environment of a repository.
Country of PublicationUnited States
LanguageEnglish
FormatMedium: ED; Size: 6 p.; Other: FDE: PDF; PL:
Availability OSTI as DE98057731
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System Entry Date2008 Feb 05
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