WIPP shaft seal system parameters recommended to support compliance calculations

Hurtado, L.D.; Knowles, M.K.; Kelley, V.A.; Jones, T.L.; Ogintz, J.B.; Pfeifle, T.W.

doi:10.2172/563218

Cited by 2 publications

(2 citation statements)

References 27 publications

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“…For each parameter (idpram), the roadmaps provide direction to the pertinent section of the package and identify any literature, other reference sources, and supporting data records packages used to develop the parameter. In addition, a separate report (Hurtado et al, 1997) contains specific details regarding the development of the Shaft Seals parameters.…”

Section: 1 22 Shaft Seals Parametersmentioning

confidence: 99%

Guidebook for performance assessment parameters used in the Waste Isolation Pilot Plant compliance certification application. Volume 1: Main report

Howarth¹,

Martell²,

Weiner

et al. 1998

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Section: 1 22 Shaft Seals Parametersmentioning

confidence: 99%

Guidebook for performance assessment parameters used in the Waste Isolation Pilot Plant compliance certification application. Volume 1: Main report

Howarth¹,

Martell²,

Weiner

et al. 1998

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“…The excavated, run-of-mine salt (crushed salt) can be used as backfill material. As the emplacement drifts close due to the creep of the host rock, the crushed salt backfill undergoes a reconsolidation process (Bechthold et al 2004;Callahan et al 1998;Hurtado et al 1997;Wieczorek et al 2012). During this process, porosity decreases from 30-40% to low residual values (< 10% in the long-term), and the mechanical and flow properties of the crushed salt evolve toward the characteristic values of the natural salt host rock.…”

Section: Introductionmentioning

confidence: 99%

Coupled Processes Modeling in Rock Salt and Crushed Salt Including Halite Solubility Constraints: Application to Disposal of Heat-Generating Nuclear Waste

et al. 2018

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This paper presents numerical modeling of coupled thermal, hydraulic and mechanical processes in rock salt and crushed salt considering halite solubility constraints. The TOUGH-FLAC simulator is used, with a recently enhanced Equation-Of-State module that includes the thermodynamic properties of aqueous fluids of variable salinity. Laboratory and field scale tests performed on rock salt and crushed salt under temperature gradients are modeled first to evaluate the capabilities of the simulator to reproduce important features, such as porosity changes induced by halite dissolution/precipitation, and brine and heat migration. Since the results are quite satisfactory, the simulator is used to predict the long-term response of a generic salt repository for heat-generating nuclear waste. To evaluate the impacts of halite solubility on the predictions, two simulations that respectively consider or neglect solubility constraints are performed. In the scenario studied, the results are not significantly affected by dissolution/precipitation, and only some differences are observed due to changes in porosity, but the dominating processes remain the same. With the new provisions, TOUGH-FLAC is more complete in terms of processes occurring around a heat-releasing nuclear waste package and can therefore provide more accurate predictions of the long-term performance of a nuclear waste repository in salt formations.

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WIPP shaft seal system parameters recommended to support compliance calculations

Cited by 2 publications

References 27 publications

Guidebook for performance assessment parameters used in the Waste Isolation Pilot Plant compliance certification application. Volume 1: Main report

Guidebook for performance assessment parameters used in the Waste Isolation Pilot Plant compliance certification application. Volume 1: Main report

Coupled Processes Modeling in Rock Salt and Crushed Salt Including Halite Solubility Constraints: Application to Disposal of Heat-Generating Nuclear Waste

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