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A Review of the Swedish KBS-3 Plan for Final Storage of Spent Nuclear Fuel (1984) / Chapter Skim
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'Suggestions for Additional Research'
Pages 61-65

The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.


From page 61...
... Suggested research topics are assembled below in these areas: sensitivity analysis, groundwater movement, properties of bentonite, thermochemical data, geologic investigations, and probabilistic risk assessment. The topics are arranged in roughly what the panel considers their order of importance.
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From page 62...
... Essential in attacking this question is the use of interference tests for measuring hydraulic conductivity. A possible approach is the experimental design for interference tests described in TR 80-05, using packers rather than the usual pumping tests.
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From page 63...
... The change occurred at pressures somewhat greater than those expected in a repository, and whether reduced pressure would accelerate or decelerate the reaction is uncertain. Long-term tests under repository conditions seem desirable to test this reaction and also possible slow reactions of wet bentonite with copper or with minerals of the bedrock.
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From page 64...
... The compacted and watersaturated bentonite around a canister will probably serve as an effective cushion for slow deformation, but sudden displacive rock movement in an earthquake might cause both copper and bentonite to act like brittle solids and fracture. How large a sudden displacement could a canister endure without rupture, and how much protection would the bentonite offer?
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From page 65...
... Additional study of evidence for postglacial rock displacements in various parts of the country would be of much scientific interest and might aid in the ultimate choice of a repository site, but there is little chance that it would change the general conclusion that Swedish bedrock is sufficiently stable to ensure long-term repository integrity. Probabilistic Risk Assessment.
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Key Terms

  • sensitivity analysis
  • slow reactions
  • probabilistic risk
  • fractured rock
  • interference tests

  • repository conditions
  • roland pusch
  • hydraulic conductivity
  • groundwater flow
  • proposed seals

  • short duration
  • transient pressure
  • pumping tests
  • slow deformation
  • fractured conditions

  • laboratory results
  • using simulation
  • conditions examined
  • wet bentonite
  • geological survey

  • sufficiently stable
  • pressure response
  • determining hydraulic
  • valid basis
  • kbs scientists

  • brittle solids
  • conceptual model
  • using packers
  • experimental design
  • postglacial rock


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