Estimating changes in rock permeability due to thermal-mechanical effects
Description/Abstract
This 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.
| DOI | 10.2172/641084 |
|---|---|
| Creator/Author: | Wang, H.F. ; Blair, S.C. ; Berge, P.A. |
| Publication Date: | 1997 Oct 01 |
| OSTI Identifier: | OSTI ID: 641084; Legacy ID: DE98057731 |
| Report Number(s): | UCRL-JC--128799 |
| DOE Contract Number: | W-7405-ENG-48 |
| DOI: | 10.2172/641084 |
| Other Number(s): | Other: ON: DE98057731; CNN: W-7405-Eng-48 |
| Resource Type: | Technical Report |
| Resource Relation: | Other Information: PBD: 1 Oct 1997 |
| Research Org: | Lawrence Livermore National Lab., CA (United States) |
| Sponsoring Org: | USDOE Office of Civilian Radioactive Waste Management, Washington, DC (United States) |
| Subject: | 58 GEOSCIENCES ;05 NUCLEAR FUELS; ROCKS; PERMEABILITY; YUCCA MOUNTAIN; MATHEMATICAL MODELS; FRACTURES; RADIOACTIVE WASTE STORAGE; GEOLOGY; STRESSES |
| Country of Publication: | United States |
| Language: | English |
| Format: | Size: 6 p.; Other: FDE: PDF; PL: |
| Availability: | OSTI as DE98057731 To purchase this media from NTIS, click here |
| Update Date: | 2008 Feb 05 |
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