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Title: Evaluation of models for estimating changes in fracture permeability due to thermo-mechanical stresses in host rock surrounding a potential repository

Evaluation of models for estimating changes in fracture permeability due to thermo-mechanical stresses in host rock surrounding a potential repository We provide in this report a methodology to estimate bounds on the changes in fracture permeability due to thermal-mechanical processes associated with excavation of drifts and emplacement of waste. This report is the first milestone associated with Task A of the LLNL initiative to evaluate available methods for estimating chamges in fracture permeability surrounding drifts in the Exploratory Studies Facility (ESF) and the potential repository at Yucca Mountain in response to (1) construction-induced stress changes and (2) subsequent thermal pulse effects due to waste emplacement. These results are needed for modeling changes in repository-level moisture movement and seepage.
Authors: ; ; ;
Publication Date:
OSTI Identifier:3844
Report Number(s):UCRL-ID-131704
Milestone #SPLFIM4; ON: DE00003844
Resource Type:Technical Report
Data Type:
Research Org:Lawrence Livermore National Laboratory, Livermore, CA
Sponsoring Org:USDOE Office of Civilian Radioactive Waste Management (RW)
Country of Publication:United States
Language:English
Subject: 05 NUCLEAR FUELS; 58 GEOSCIENCES; Rocks; Rocks; Stresses; Stresses; Fracture Mechanics; Fracture Mechanics; Permeability; Permeability; Computer Codes; Computer Codes