Tunneling on the Yucca Mountain Project: Progress and lessons learned

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The Yucca Mountain Site Characterization Project is the US`s effort to confirm the technical acceptability of Yucca Mountain as a repository for high-level nuclear waste. A key part of the site characterization project is the construction of a 7.8-km-long, 7.6-m-diameter tunnel for in-depth geologic and other scientific investigations. The work is governed in varying degrees by the special requirements for nuclear quality assurance, which imposes uncommon and often stringent limitations on the materials which can be used in construction, the tunneling methods and procedures used, and record-keeping for many activities. This paper presents the current status of what has been ... continued below

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8 p.

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Hansmire, W. H.; Rogers, D. J. & Wightman, W. D. June 1, 1996.

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Description

The Yucca Mountain Site Characterization Project is the US`s effort to confirm the technical acceptability of Yucca Mountain as a repository for high-level nuclear waste. A key part of the site characterization project is the construction of a 7.8-km-long, 7.6-m-diameter tunnel for in-depth geologic and other scientific investigations. The work is governed in varying degrees by the special requirements for nuclear quality assurance, which imposes uncommon and often stringent limitations on the materials which can be used in construction, the tunneling methods and procedures used, and record-keeping for many activities. This paper presents the current status of what has been learned, how construction has adapted to meet the requirements, and how the requirements were interpreted in a mitigating way to meet the legal obligations, yet build the tunnel as rapidly as possible. With regard to design methodologies and the realities of tunnel construction, ground support with a shielded Tunnel Boring Machine is discussed. Notable lessons learned include the need for broad design analyses for a wide variety of conditions and how construction procedures affect ground support.

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8 p.

Notes

INIS; OSTI as DE96011908

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  • North American tunneling `96, Washington, DC (United States), 21-24 Apr 1996

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  • Other: DE96011908
  • Report No.: CONF-9604149--1
  • Grant Number: AC08-87NV10576
  • Office of Scientific & Technical Information Report Number: 251281
  • Archival Resource Key: ark:/67531/metadc670359

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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.

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  • June 1, 1996

Added to The UNT Digital Library

  • June 29, 2015, 9:42 p.m.

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  • March 16, 2018, 12:10 p.m.

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Hansmire, W. H.; Rogers, D. J. & Wightman, W. D. Tunneling on the Yucca Mountain Project: Progress and lessons learned, article, June 1, 1996; Las Vegas, Nevada. (digital.library.unt.edu/ark:/67531/metadc670359/: accessed September 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.