Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT) (방사성폐기물학회지)

Korean Radioactive Waste Society (한국방사성폐기물학회)
권호 표지
DOI QR코드

DOI QR Code

Parametric Study for Structural Reinforcement Methods of Disposal Container for NPP Decommissioning Radioactive Waste

  • Received : 2023.06.20
  • Accepted : 2023.07.06
  • Published : 2023.09.30
Download PDF
⟨ Previous Next ⟩

Abstract

This paper described a method for analyzing the structural performance of a metal container used for disposing radioactive waste generated during the decommissioning of a nuclear power plant, and numerical analysis results of a method for reinforcing the container. The containers to be analyzed were those that can be used in near-surface and landfill disposal facilities scheduled to be operated at the Gyeongju radioactive waste disposal facility. Structural reinforcement of the container was performed by lattice reinforcement, column reinforcement, and bottom plate reinforcement. Accordingly, a total of 14 reinforcement cases were modeled. The external force causing damage to the container was set equivalent to the impact of a 9-m fall, accounting for the height of the vault at the near-surface disposal facility. The reinforcement methods with a high contribution to the structural performance of the container were concluded to be lattice and column reinforcements.

Keywords

Acknowledgement

This work was supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP Project No.2021151010040) and the Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea.

References

  1. International Atomic Energy Agency. June 2022. "Nuclear Power Reactors in the World." Reference Data Series No. 2. Accessed Jun. 20 2023. Available from: https://www.iaea.org/publications/15211/nuclear-power-reactors-in-the-world/RDS-2-42_web.pdf. 
  2. Korea Nuclear Safety and Security Commission. "Permanent Shutdown/Decommissioning." NSSC homepage. Accessed Jun. 20 2023. Available from: https://nsic.nssc.go.kr/nuclear/PermntSuspenDisassemble.do?nppKey=CMN024050101. 
  3. H.R. Bae, "A Study on the Operation Plan of LILW Disposal Facilities by Estimating the Decommissioning Radioactive Waste", Dongguk University Graduate School, Master's thesis (2022). 
  4. Korea Radioactive Waste Agency. "Radioactive Classification and Disposal Method." KORAD homepage. Accessed Jun. 20 2023. Available from: https://www.korad.or.kr/korad/html.do?menu_idx=150. 
  5. M. Kwon, H. Kang, and C. Cho, "Study on Rainfall Infiltration Into Vault of Near-surface Disposal Facility Based on Various Disposal Scenarios", J. Nucl. Fuel Cycle Waste Technol., 19(4), 503-515 (2021).  https://doi.org/10.7733/jnfcwt.2021.042
  6. Y.S, Cho, H. Dho, H. Kang, and C. Cho, "Evaluation of Exposure Dose and Working Hours for Near Surface Disposal Facility", J. Nucl. Fuel Cycle Waste Technol., 20(4), 511-521 (2022).  https://doi.org/10.7733/jnfcwt.2022.039
  7. Korea Nuclear Safety and Security Commission, Standards for Radiation Protection, Public Notification No. 2019-10 (2019). 
  8. Korea Nuclear Safety and Security Commission, Regulations on Radioactive Waste Classification and Self-Disposal Standards, Public Notification No. 2020-6 (2020). 
  9. Korea Nuclear Safety and Security Commission, Regulations on the Packaging and Transportation of Radioactive Materials, Public Notification No. 2021-2 (2021). 
  10. J. Recarte and N. Solente. Waste Acceptance Process and Criteria, French National Radioactive Waste Management Agency (ANDRA) Report (2019). 
  11. Korea Atomic Energy Research Institute. Safety Test and Verification of Container for Decommissioning Waste of Nuclear Power Plant, KAERI Technical Report, KAERI/TR-8803 (2021). 
  12. Korea Radioactive Waste Agency. Decommissioning Radioactive Waste Disposal Container Disposal Procedure and Disposal Suitability Assessment I, KORAD Technical Report, KORAD/TR (2021). 
  13. Korea Radioactive Waste Agency. Decommissioning Radioactive Waste Disposal Container Disposal Procedure and Disposal Suitability Assessment II, KORAD Technical Report, KORAD/TR/2022-13 (2022). 
  14. Livemore Software Technology Corporation, LS-DYNA Theory Manual (2006). 
  15. H. Kang and J. Kim, "Response of a Steel Column-footing Connection Subjected to Vehicle Impact", Struct. Eng. Mech., 63(1), 125-136 (2017). https://doi.org/10.12989/SEM.2017.63.1.125