Dynamic compaction of salt: Initial demonstration and performance testing

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Reconsolidated crushed salt is proposed as the sole long-term shaft seal between the Waste Isolation Pilot Plant (WIPP) and the biosphere. The concept for a long-term shaft seal for the WIPP repository is to place crushed salt in the four shafts and to develop an effective seal as the surrounding salt creeps into the shafts, reconsolidating the salt. Permeability of the salt components is calculated to achieve performance objectives at some acceptable time in the future, an expectation which is a key to performance assessment calculations for the WIPP. Such a seal has never been constructed, and until now no ... continued below

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6 p.

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Hansen, F.D.; Ahrens, E.H.; Tidwell, V.C.; Tillerson, J.R & Brodsky, N.S. December 31, 1994.

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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

Reconsolidated crushed salt is proposed as the sole long-term shaft seal between the Waste Isolation Pilot Plant (WIPP) and the biosphere. The concept for a long-term shaft seal for the WIPP repository is to place crushed salt in the four shafts and to develop an effective seal as the surrounding salt creeps into the shafts, reconsolidating the salt. Permeability of the salt components is calculated to achieve performance objectives at some acceptable time in the future, an expectation which is a key to performance assessment calculations for the WIPP. Such a seal has never been constructed, and until now no performance measurements have been made on an appropriately large scale. A full understanding of construction methods, achievable initial density and permeability and time-wise performance of reconsolidating salt is required. This paper discusses nearly full-scale dynamic compaction of mine-run WIPP salt, preliminary measurements of density and permeability, and their variability within a relatively large volume of compacted material

Physical Description

6 p.

Notes

INIS; OSTI as DE95004776

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  • 35. US symposium on rock mechanics, South Lake Tahoe, NV (United States), 4-7 Jun 1995

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  • Other: DE95004776
  • Report No.: SAND--94-2313C
  • Report No.: CONF-950655--4
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 39643
  • Archival Resource Key: ark:/67531/metadc679924

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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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  • December 31, 1994

Added to The UNT Digital Library

  • July 25, 2015, 2:20 a.m.

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  • April 13, 2016, 1:36 p.m.

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Hansen, F.D.; Ahrens, E.H.; Tidwell, V.C.; Tillerson, J.R & Brodsky, N.S. Dynamic compaction of salt: Initial demonstration and performance testing, article, December 31, 1994; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc679924/: accessed November 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.