Analysis of thermal-hydrologic-mechanical behavior near an emplacement drift at Yucca Mountain

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Description

A coupled thermal, hydrologic and mechanical (THM) analysis is conducted to evaluate the impact of coupled THM processes on the performance of a potential nuclear waste repository at Yucca Mountain, Nevada. The analysis considers changes in rock mass porosity, permeability, and capillary pressure caused by rock deformations during drift excavation, as well as those caused by thermo-mechanically induced rock deformations after emplacement of the heat-generating waste. The analysis consists of a detailed calibration of coupled hydraulic-mechanical rock mass properties against field experiments, followed by a prediction of the coupled thermal, hydrologic, and mechanical behavior around a potential repository drift. For ... continued below

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33 pages

Creation Information

Rutqvist, Jonny & Tsang, Chin-Fu June 17, 2002.

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Description

A coupled thermal, hydrologic and mechanical (THM) analysis is conducted to evaluate the impact of coupled THM processes on the performance of a potential nuclear waste repository at Yucca Mountain, Nevada. The analysis considers changes in rock mass porosity, permeability, and capillary pressure caused by rock deformations during drift excavation, as well as those caused by thermo-mechanically induced rock deformations after emplacement of the heat-generating waste. The analysis consists of a detailed calibration of coupled hydraulic-mechanical rock mass properties against field experiments, followed by a prediction of the coupled thermal, hydrologic, and mechanical behavior around a potential repository drift. For the particular problem studied and parameters used, the analysis indicates that the stress-induced permeability changes will be within one order of magnitude and that these permeability changes do not significantly impact the overall flow pattern around the repository drift.

Physical Description

33 pages

Notes

INIS; OSTI as DE00838062

Source

  • Journal Name: Journal of Contaminant Hydrology; Journal Volume: 62-3; Journal Issue: SI; Other Information: Submitted to Journal of Contaminant Hydrology: Volume 62-3, No.SI; Journal Publication Date: 04/05/2003

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  • Report No.: LBNL--49951
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 838062
  • Archival Resource Key: ark:/67531/metadc777725

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Creation Date

  • June 17, 2002

Added to The UNT Digital Library

  • Dec. 3, 2015, 9:30 a.m.

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  • April 1, 2016, 8:37 p.m.

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Rutqvist, Jonny & Tsang, Chin-Fu. Analysis of thermal-hydrologic-mechanical behavior near an emplacement drift at Yucca Mountain, article, June 17, 2002; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc777725/: accessed August 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.