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2025 Vol.2, Issue 2 Preview Page

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Explosion Load Estimation for Underground Structures in Protective Facility

방폭시설 지하구조의 폭발하중 산정

Jin-Young Park1*
,
Hong-Gun Park2
박 진영1*
,
박 홍근2
1Postdoctoral Researcher, Structural and Seismic Safety Research Division, Korea Atomic Energy Research Institute, Daejeon, 34057, Rep. of Korea
2Professor, Department of Architecture and Architectural Engineering, Seoul National University, Seoul, 08826, Rep. of Korea
1한국원자력연구원 박사후연구원
2서울대학교 건축학과 교수
*Corresponding Author
13 May 2025. pp. 123-132
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Abstract

The growing threat of nuclear weapons, global regional conflicts, and the expansion of high-energy industrial facilities due to industrial development and new energy advancements have increased the demand for protective structures. Particularly, the importance of nuclear and radiation protection has highlighted underground structures as effective defensive facilities, utilizing soil as an additional shield. Consequently, the Explosive Protection Facility Design Standards regulate the design of underground structures for blast protection, and the corresponding guidelines provide related examples. This paper outlines key considerations in underground structure blast protection design, including general aspects, shock pressure, and design load calculation methods. Through this approach, applying the blast load calculation method based on soil type and pressure wave propagation will enable safer and more efficient underground structural designs.

Keywords
underground structure
ground shock
direct wave
reflected wave

최근 북핵 위협의 증가, 전 세계적인 국지전 발생, 그리고 산업 발전 및 신에너지 개발로 인해 고에너지 산업시설의 구축이 확대되면서 방호시설의 필요성이 커지고 있다. 특히, 핵방호와 방사능 방호의 중요성이 강조됨에 따라, 토질을 추가적인 방어막으로 활용할 수 있는 지하구조물이 효과적인 방호시설로 주목받고 있다. 이에 따라 방폭시설설계기준에서는 지하구조물의 방폭설계를 규정하고 있으며, 방폭시설설계기준 예제에서는 관련 예제를 제시하고 있다. 본 논문에서는 해당 기준과 예제 중 지하구조 방폭설계 시 고려해야 할 주요 요소인 일반사항, 충격압, 그리고 설계하중 산정법에 대해 기술한다. 이를 통해 토질의 종류와 압력파의 전파 경로를 고려한 폭발하중 산정법을 적용한 지하구조물 설계가 보다 안전하고 효과적인 구조설계를 가능하게 할 것으로 기대된다.

키워드
지하구조
지하폭발
직접파
반사파
References
1

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TM 5-855-1 (1986) Fundamentals of Protective Design for Conventional Weapons. Washington, D.C.: Headquarters, Department of the Army.

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Zhang, B., Zhao, W., Wang, W., and Zhang, W. (2014) Pressure Characteristics and Dynamic Response of Coal Mine Refuge Chamber with Undergorund Gas Explosion. Journal of Loss Prevention in the Process Industries 30, 37-46.

10.1016/j.jlp.2014.03.009
Information
  • Publisher :Korea Protective Facility Institute
  • Publisher(Ko) :한국방호시설학회
  • Journal Title :Protective Facility
  • Journal Title(Ko) :방호시설
  • Volume : 2
  • No :2
  • Pages :123-132
  • Received Date : 2025-04-05
  • Accepted Date : 2025-04-16
  • DOI :https://doi.org/10.23310/PF.2025.2.2.123
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