RISS 검색 - 국내학술지논문 상세보기

다국어 초록 (Multilingual Abstract)

In order to ensure the stability of net protection system for debris flow, not only the design of net but also the design of anchor which is supporting whole system is of equal importance. However, as the tensile forces acting in the anchor vary according to the net types and the energy absorption, it is not easy to design the anchor capacity for this protection system. The guidelines for anchor design are also not established yet in Korea. In this study, a specific brake frame was developed for this system and the energy absorption by the brake frame was estimated based on static load test. Based on full scale impact tests, the deformation of net protection system and tensile forces in the anchors were analysed according to impact energy level. Generally, as the impact energy increases, not only the maximum displacement of the protection system and the energy absorption by the brake frame increase, but the tensile forces acting in the anchor also increase. Based on the experimental results, an empirical relationship between the impact energy and tensile force was established which can be used in anchor design. The results obtained from this study are planned to be utilized for design of anchor in the future.

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참고문헌 (Reference)

1 류지협, "토석류 취약지역의 위험성 평가방안에 관한 연구" 한국방재학회 17 (17): 163-171, 2017

2 조성하, "축소모형시험을 이용한 토석류 방지시설 성능평가" 한국방재학회 16 (16): 247-260, 2016

3 Gentilini, C., "Three-dimensional Numerical Modelling of Falling Rock Protection Barriers" 44 : 58-72, 2012

4 Kim, S.T., "Performance Evaluation of Net Type Debris Barrier for High Energy Absortion" 18-19, 2017

5 Sasiharan, N., "Numerical Analysis of the Performance of Wire Mesh and Cable Net Rockfall Protection Systems" 88 (88): 121-132, 2006

6 Gentilini, C., "Design of Falling Rock Protection Barriers Using Numerical Models" 50 : 96-106, 2013

7 Sasiharan, N., "Analysis of Global Stability, Anchor Spacing, and Support Cable Loads in Wire Mesh and Cable Net Slope Protection Systems" 1913 : 205-213, 2005

8 Muhunthan, B., "Analysis and Design of Wire Mesh/Cable Net Slope Protection" Washington State Department of Transportation 2005