Journal of the Korean GEO-environmental Society (한국지반환경공학회 논문집)

Korean Geo-Environmental Society (한국지반환경공학회)
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A Study on Test Method for Performance Evaluation of Rockfall Protection Fence (Post)

낙석방지울타리(지주) 성능평가를 위한 시험방법 연구

  • Received : 2021.10.21
  • Accepted : 2022.01.18
  • Published : 2022.02.01
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Abstract

In this study, a field test was conducted to present a test method for performance evaluation of a rock fall prevention fence, centering on the vertical drop test among the existing test methods of the rock fall prevention fence. A test to determine the support capacity of a rockfall prevention fence in Korea is usually conducted using a combination of wire mesh, poles, and wire rope, and the location of the impact of falling rocks has been conducted centered on the center of the wire mesh. However, in the case of domestic papers and test data, there is no data on direct hit of post. Therefore, the amount of displacement and weak section were analyzed when the impact on 100kJ class rock energy was hit on the post, centering on the Rockfall Protection fence (highway type No. 2).

본 연구는 기존 낙석방지울타리의 시험 방법 중 수직 낙하시험을 중심으로 낙석방지울타리의 성능평가에 대한 시험방법을 제시하기 위해 현장시험을 실시하였다. 국내의 낙석방지울타리 지지 능력을 알아보는 시험은 보통 철망, 지주, 와이어로프를 합친 것으로 시험을 실시하며, 낙석의 충돌위치를 철망의 중앙을 중심으로 실시해 왔다. 하지만 실제 현장에서 낙석이 철망이 아닌 지주에 직접 타격했을 경우, 즉 지주에 직접 타격에 관한 국내 시험적 논문 및 데이터가 전무한 것으로 파악되었다. 따라서 낙석방지울타리(고속도로 형식 2호)를 중심으로 100kJ급의 낙석에너지에 대한 충격을 지주에 타격 했을 시 변위량을 분석하고 기존의 낙석방지울타리 시험과 비교·분석하였다.

Keywords

Acknowledgement

본 연구는 2018년도 상지대학교 교내 연구비 지원과 중소벤처기업부 구매조건부신제품개발사업 구매연계형 과제(기존 설치된 낙석방지울타리에 대한 방호성능보강(110KJ급)기술개발, G21S294865701)의 지원으로 수행되었으며, 이에 깊은 감사를 드립니다.

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