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2025 Vol.21, Issue 4 Preview Page

Research Article

Disaster Risk Vulnerability Classification and Priority Assessment of Natural Caves in Gangwon Region

강원지역 천연동굴의 재난위험 취약성 분류 및 우선순위 평가

이기철1ㆍ박정준2ㆍ원덕희3ㆍ홍기권3*

Kicheol Lee1, Jeongjun Park2, Deokhee Won3, Gigwon Hong3*

1Research Professor, RISE Project Group, Halla University, Wonju, Republic of Korea
2Research Professor, Incheon Disaster Prevention Research Center, Incheon National University, Incheon, Republic of Korea
3Assistant Professor, Department of Urban Infra Engineering, Halla University, Wonju, Republic of Korea
31 December 2025. pp. 1084-1091
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Abstract
Purpose: This study proposes a methodology for quantitatively assessing the relative structural vulnerability of natural caves, considering the practical limitations that make detailed investigations of all caves unfeasible. Method: Existing survey data were utilized to refine parameters such as entrance shape, width, height, and development direction, from which the Circularity Index (CI), Arching Index (AI), and Direction Index (DI) were derived. Each indicator was weighted using the CRITIC (Criteria Importance Through Inter criteria Correlation) method and integrated into a composite Disaster Vulnerability Cave Index (DVCI). Result: The results show that the DVCI values range from 0.168 to 0.940, with a mean of 0.474 and a standard deviation of 0.178. The distribution is right-skewed, concentrated mainly between 0.30 and 0.45, indicating that most caves exhibit moderate to high structural stability. Caves with relatively low DVCI values tend to have asymmetric entrances or aligned development directions, suggesting comparatively vulnerable geometric configurations. Conclusion: The proposed DVCI serves as a relative index of structural stability rather than an absolute measure of collapse risk, providing a practical basis for prioritizing cave vulnerability and management under limited data conditions.
Keywords
Natural Cave
Circularity Index
Arching Index
Direction Index
Dvci
연구목적: 본 연구는 모든 천연동굴에 대한 정밀조사가 현실적으로 어려운 점을 고려하여, 상대적 구조 취약성을 정량적으로 평가하기 위한 방법론을 제시하였다. 연구방법: 이를 위해 기존 자료를 활용하여 입구 형상, 폭 ·높이, 발달 방향 정보를 정제하고, 원형성 지표(CI), 아치성지표(AI), 방향지표(DI) 를 산정하였다. 각 지표는 CRITIC(Criteria Importance Through Intercriteria Correlation) 방법을 통해 가중치를 부여하여 통합한 재난 취약성 동굴 동굴 지수(Disaster Vulnerability Cave Index, DVCI) 를 도출하였다. 연구결과: 결과적으로 DVCI는 0.168~0.940 범위에서 분포하였으며, 평균 0.474, 표준편차 0.178로 확인되었다. 분포는 0.30~0.45 구간에 집중된 우편향 형태를 보였으며, 대부분의 동굴이 중간 이상 수준의 안정성을 가지는 것으로 나타났다. 일부 낮은 DVCI 값을 가진 동굴은 입구 비대칭이나 방향 정렬 등으로 인해 상대적으로 취약한 형상적 특성을 보였다. 결론: 본 연구에서 제안한 DVCI는 절대적 붕괴위험도가 아닌 상대적 안정성 지표로서, 제한된 자료 조건에서도 동굴의 취약성 우선순위 결정에 활용될 수 있다.
키워드
천연 동굴
원형성 지표
아치성 지표
방향성 지표
재난 취약성 동굴 지수
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Information
  • Publisher :The Korean Society of Disaster Information
  • Publisher(Ko) :한국재난정보학회
  • Journal Title :Journal of the Society of Disaster Information
  • Journal Title(Ko) :한국재난정보학회논문집
  • Volume : 21
  • No :4
  • Pages :1084-1091
  • DOI :https://doi.org/10.15683/kosdi.2025.12.31.1084
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