Measuring geomechanical properties of Topopah Spring Tuff at the 1-meter scale

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The Yucca Mountain Site Characterization Project is studying physical and chemical properties of Topopah Spring tuff and coupled thermal, mechanical, hydrological, and geochemical processes expected in the near-field environment of the potential waste repository at Yucca Mountain, Nevada. Investigating the suitability of Topopah Spring tuff as a host rock for radioactive waste disposal includes measuring mechanical properties. Since heterogeneities vary with scale, from vugs and cracks at the hand-sample scale to fractures and vertical variations in degree of welding at the outcrop scale, mechanical properties of the tuff depend on scale. The Lawrence Livermore National Laboratory has planned a Large ... continued below

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7 p.

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Blair, S. C. & Berge, P. A. November 1, 1994.

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Description

The Yucca Mountain Site Characterization Project is studying physical and chemical properties of Topopah Spring tuff and coupled thermal, mechanical, hydrological, and geochemical processes expected in the near-field environment of the potential waste repository at Yucca Mountain, Nevada. Investigating the suitability of Topopah Spring tuff as a host rock for radioactive waste disposal includes measuring mechanical properties. Since heterogeneities vary with scale, from vugs and cracks at the hand-sample scale to fractures and vertical variations in degree of welding at the outcrop scale, mechanical properties of the tuff depend on scale. The Lawrence Livermore National Laboratory has planned a Large Block Test (LBT) to investigate rock mass properties and coupled processes at elevated temperatures in Topopah Spring tuff at the scale of a few meters. This paper describes planned laboratory experiments in support of the LBT, to measure elastic properties and mechanical behavior of Topopah Spring tuff at the scale of a few cm to 1 m. The laboratory experiments will include measurement of stress-strain behavior, acoustic emissions during heating, and elastic wave velocities in small blocks of tuff.

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7 p.

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INIS; OSTI as DE95011441

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  • International high-level radioactive waste management conference: progress toward understanding, Las Vegas, NV (United States), 1-5 May 1995

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  • Other: DE95011441
  • Report No.: UCRL-JC--119121
  • Report No.: CONF-950570--18
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 71284
  • Archival Resource Key: ark:/67531/metadc707746

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • November 1, 1994

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  • Sept. 12, 2015, 6:31 a.m.

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  • Feb. 17, 2016, 2:20 p.m.

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Blair, S. C. & Berge, P. A. Measuring geomechanical properties of Topopah Spring Tuff at the 1-meter scale, article, November 1, 1994; California. (digital.library.unt.edu/ark:/67531/metadc707746/: accessed September 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.