B-25 Corrosion Evaluation Summary Report

Dunn, Kerry

doi:10.2172/799678

Cited by 9 publications

(46 citation statements)

References 2 publications

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“…This is consistent with field observations for the B-25 boxes excavated in 2001 (Dunn, 2002;Jones and Li, 2001) and with earlier theoretical studies (Dames and Moore, 1987). …”

Section: Comparison Between Analytical Results and Field Observationssupporting

confidence: 92%

Quasi-Static Analysis for Subsidence of Stacked B-25 Boxes

Jones

Phifer

2005

Volume 7: Operations, Applications, and Components

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This paper presents a quasi-static technique to evaluate the structural deformation of the four stacked B-25 boxes subjected to the static loads of overlaying soil and to determine the effect of corrosion on the deformation. Although the boxes are subjected to a static load, the structural responses of the boxes vary with time. The analytical results indeed show that the deflection, buckling and post buckling of the components of the stacked boxes occur in sequence rather than simultaneously. Therefore, it is more appropriate to treat the problems considered as quasistatic rather than static; namely, the structural response of the stacked boxes are dynamic but with very long duration. Furthermore, the finite-element model has complex contact and slide conditions between the interfaces of the adjoining components, and thus its numerical solution is more tractable by using explicit time integration schemes.The analysis covers the three corrosion scenarios following various time lengths of initial burial under an interim soil cover. The results qualitatively agree with expected differences in deformation for different degrees of corrosion subsidence potential reduction that can be achieved.

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“…This is consistent with field observations for the B-25 boxes excavated in 2001 (Dunn, 2002;Jones and Li, 2001) and with earlier theoretical studies (Dames and Moore, 1987). …”

Section: Comparison Between Analytical Results and Field Observationssupporting

confidence: 92%

Quasi-Static Analysis for Subsidence of Stacked B-25 Boxes

Jones

Phifer

2005

Volume 7: Operations, Applications, and Components

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“…container (over 77 percent of total containers used) is the B‐25 box, a painted and primed steel box constructed out of 12‐gauge low‐carbon steel with a volume of 2.55 m 3 and capable of holding up to 2,720 kg of LLW (Dunn, ; Jones & Li, ; Jones et al., ). A similar waste package used is the B‐12 box, identical in construction but half the volume of a B‐25 box; it can hold up to 2,270 kg.…”

Section: Site Comparison Datamentioning

confidence: 99%

Comparison of LLW Disposal Facilities at Major Department of Energy Sites

Rustick

Kosson²,

Krahn³

et al. 2015

Remediation Journal

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Near surface disposal facility design and management are examined and compared using a systems approach that defines facility performance as a function of three components (or subsystems): the disposal facility design (cover systems and bottom liners); the properties of the waste (waste composition, waste form and waste package); and the site-specific environmental features (climate, geology, and hydrology). We report an evaluation of five DOE near surface disposal facility case studies, selected to provide a "representative" sample that included disposal sites with a range of waste and environmental characteristics across the DOE. The facilities selected were the Savannah River E-Area Engineered Trenches, Hanford Integrated Disposal Facility, Idaho Radioactive Waste Management Complex, Oak Ridge Environmental Management Waste Management Facility, and Nevada National Security Site Area 5. c⃝ 2015 Wiley Periodicals, Inc.

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“…The standard waste package used in this analysis was a steel box with interior dimensions of 1.17 m × 1.83 m and a height of 1.19 m, yielding a total volume of 2.55 m 3 (Dunn, ; Jones & Li, ; Jones & Phifer, ). This type of box (referred to in DOE as a “B‐25”) is not the only type of steel box waste package used at SRS or at other DOE sites, but it is the most common type used in the Engineered Trenches, accounting for approximately 77 percent of waste packages.…”

Section: Introductionmentioning

confidence: 99%

“…This type of box (referred to in DOE as a “B‐25”) is not the only type of steel box waste package used at SRS or at other DOE sites, but it is the most common type used in the Engineered Trenches, accounting for approximately 77 percent of waste packages. Each box is constructed of 12‐gauge carbon (0.15 percent) hot‐rolled, sheet and strip, commercial steel, with a thickness of 2.78 mm (ASTM designation A‐569‐93; Dunn, ). The box lid is sealed with a rubber gasket to reduce liquid infiltration (Jones & Li, ).…”

Section: Introductionmentioning

confidence: 99%

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Application of a Proposed Generic LLW Waste Package Analysis With Changing Infiltration in a Humid Environment

Rustick

Krahn²,

Kosson³

et al. 2016

Remediation

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Corrosion of carbon steel boxes filled with low‐level radioactive waste and buried within a near surface disposal facility in a humid environment was evaluated using an integrated systems approach framework. The time to hydraulic failure from initial burial to development of holes through the wall of a given waste package from pitting corrosion was calculated for four corrosion scenarios under two different corrosion cases. The two corrosion cases chosen were a constant rate of corrosion and a slowing rate of corrosion. Corrosion rates were estimated for carbon steel buried in soil from several historical studies and related to the corrosivity and aeration profile of the soil. The scenarios were chosen to represent a range of possible conditions at current and future U.S. Department of Energy disposal facilities. For each scenario, once the time to hydraulic failure had been estimated, the amount of liquid present in each waste package at the time of failure was calculated as an estimate of leachate available for subsurface transport. The Savannah River E‐Area Engineered Trench was used as a basis for the hypothetical disposal facility. © 2016 Wiley Periodicals, Inc.

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B-25 Corrosion Evaluation Summary Report

Cited by 9 publications

References 2 publications

Quasi-Static Analysis for Subsidence of Stacked B-25 Boxes

Quasi-Static Analysis for Subsidence of Stacked B-25 Boxes

Comparison of LLW Disposal Facilities at Major Department of Energy Sites

Application of a Proposed Generic LLW Waste Package Analysis With Changing Infiltration in a Humid Environment

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