Seismic design of circular-section concrete-lined underground openings: Preclosure performance considerations for the Yucca Mountain Site

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Yucca Mountain, the potential site of a repository for high-level radioactive waste, is situated in a region of natural and man-made seismicity. Underground openings excavated at this site must be designed for worker safety in the seismic environment anticipated for the preclosure period. This includes accesses developed for site characterization regardless of the ultimate outcome of the repository siting process. Experience with both civil and mining structures has shown that underground openings are much more resistant to seismic effects than surface structures, and that even severe dynamic strains can usually be accommodated with proper design. This paper discusses the design ... continued below

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20 p.

Creation Information

Richardson, A.M. & Blejwas, T.E. July 1, 1992.

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  • Richardson, A.M. Agapito (J.F.T.) and Associates, Inc., Grand Junction, CO (United States)
  • Blejwas, T.E. Sandia National Labs., Albuquerque, NM (United States)

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

Yucca Mountain, the potential site of a repository for high-level radioactive waste, is situated in a region of natural and man-made seismicity. Underground openings excavated at this site must be designed for worker safety in the seismic environment anticipated for the preclosure period. This includes accesses developed for site characterization regardless of the ultimate outcome of the repository siting process. Experience with both civil and mining structures has shown that underground openings are much more resistant to seismic effects than surface structures, and that even severe dynamic strains can usually be accommodated with proper design. This paper discusses the design and performance of lined openings in the seismic environment of the potential site. The types and ranges of possible ground motions (seismic loads) are briefly discussed. Relevant historical records of underground opening performance during seismic loading are reviewed. Simple analytical methods of predicting liner performance under combined in situ, thermal, and seismic loading are presented, and results of calculations are discussed in the context of realistic performance requirements for concrete-lined openings for the preclosure period. Design features that will enhance liner stability and mitigate the impact of the potential seismic load are reviewed. The paper is limited to preclosure performance concerns involving worker safety because present decommissioning plans specify maintaining the option for liner removal at seal locations, thus decoupling liner design from repository postclosure performance issues.

Physical Description

20 p.

Notes

INIS; OSTI as DE92016452

Source

  • American Society of Civil Engineers (ASCE) symposium on dynamic analysis and design considerations, for high-level nuclear waste repositories, San Francisco, CA (United States), 19-20 Aug 1992

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  • Other: DE92016452
  • Report No.: SAND--92-0279C
  • Report No.: CONF-920866--2
  • Grant Number: AC04-76DP00789
  • Office of Scientific & Technical Information Report Number: 140738
  • Archival Resource Key: ark:/67531/metadc620880

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

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  • July 1, 1992

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • April 14, 2016, 8:08 p.m.

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Richardson, A.M. & Blejwas, T.E. Seismic design of circular-section concrete-lined underground openings: Preclosure performance considerations for the Yucca Mountain Site, article, July 1, 1992; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc620880/: accessed October 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.