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Park, Jaeyeong
Fuel Cycle and Waste Laboratory
Research Interests
  • Radioactive waste treatment and management; Spent nuclear fuel recycling; Decontamination and Decommissioning; Nuclear Fuel Cycle

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Structural Stability Analysis of Waste Packages Containing Low- and Intermediate-Level Radioactive Waste in a Silo-type Repository

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Title
Structural Stability Analysis of Waste Packages Containing Low- and Intermediate-Level Radioactive Waste in a Silo-type Repository
Author
Byeon, HyeongjinJeong, Gwan YoonPark, Jaeyeong
Issue Date
2021-05
Publisher
KOREAN NUCLEAR SOC
Citation
NUCLEAR ENGINEERING AND TECHNOLOGY, v.53, no.5, pp.1524 - 1533
Abstract
The structural stability of a waste package is essential for containing radioactive waste for the long term in a repository. A silo-type disposal facility would require more severe verification for the structural integrity, because of radioactive waste packages staked with several tens of meters and overburdens of crushed rocks and shotcretes. In this study, structural safety was analyzed for a silo-type repository, located approximately 100 m below sea level in Gyeongju, Korea. Finite element simulation was per -formed to investigate the influence of the loads from the backfilling materials and waste package stacks on the mechanical stress of the disposed of wastes and containers. It was identified that the current design of the waste package and the compressive strength criterion for the solidified waste would not be enough to maintain structural stability. Therefore, an enhanced criterion for the compressive strength of the solidified waste and several reinforced structural designs for the disposal concrete container were proposed to prevent failure of the waste package based on the results of parametric studies.
URI
https://scholarworks.unist.ac.kr/handle/201301/48677
URL
https://www.sciencedirect.com/science/article/pii/S1738573320309128?via%3Dihub
DOI
10.1016/j.net.2020.10.019
ISSN
1738-5733
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NUE_Journal Papers
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