Analysis of the Safety Factor of Railway Slopes when Rapid Hardening Composite Mat are Applied

Seongmin Jang; Jinseong Park; Taehee Kang; Hyuksang Jung

doi:10.14481/jkges.2023.24.5.21

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2023 Vol.24, Issue 5 Preview Page

Analysis of the Safety Factor of Railway Slopes when Rapid Hardening Composite Mat are Applied 초속경 복합매트 적용 시 철도 비탈면 안전율 분석

1 May 2023. pp. 21-28

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Abstract

In this paper, an experimental study was conducted to present the properties of rapid hardening composite mat, and a numerical analysis was carried out to analyze the slope protection effect of the mats based on ground conditions, rainfall, slope gradient and soil height. As a result, the application of rapid hardening composite mat increased the slope safety factor in all conditions, and the increase rate of safety factor showed an average of 40% increase both in dry and rainy seasons. Through these research findings, the protective effect of the rapid hardening composite mat on sloping surfaces has been proven, and it is suggested that the rapid hardening composite mat is suitable for application in areas where slope failure or collapse is expected.

Keywords

Railway slope

Safety factor analysis

Rapid hardening composite mat

Slope protection effect

본 논문에서는 시험적 연구를 통해 초속경 복합매트의 물성을 제시하고, 수치해석적 연구를 통해 지반조건, 강우량, 비탈면 기울기, 성토 높이 등에 따른 초속경 복합매트의 비탈면 보호효과를 분석한 연구를 다루었다. 그 결과 모든 조건에서 초속경 복합매트를 적용할 경우 비탈면 안전율은 증가하였으며, 안전율 증가율은 건기 시와 우기 시 모두 평균 40%의 증가율을 보였다. 이러한 연구결과를 통해 초속경 복합매트의 비탈면 보호효과를 입증하였으며, 초속경 복합매트는 비탈면 유실 및 붕괴가 예상되는 구간에 적용하기 적합할 것으로 사료된다.

키워드

철도 비탈면

안전율 분석

초속경 복합매트

비탈면 보호효과

References

Kang, T. H., Jung, H. S., Kim, J. H. and Back, I. C. (2021), Reinforcement effect of rapid hardening composite mat for protect railway slope in operation, Korean Geosynthetics Society, Vol. 20, No. 4, pp. 151~163 (In Korean).

Korea National Railway (2012), KR C-12050, pp. 1~20 (In Korean). 10.15735/kls.2012.20.3.001

Korea National Railway (2020), KR C-04020, pp. 1~15 (In Korean).

Kim, J. S. (2016), An Experimental Study on Protection Performance Improvement of Concrete of Military Facilities using Concrete Canva, Master's Thesis, Hanyang University, pp. 1~18.

Kwak, S. L., Cho, Y. O. and Wang, J. B. (2004), Risk assessment case study for the track worker safety, The Korean Society For Railway, pp. 95~101 (In Korean).

Lee, C. K., Bae, W. S., Kim, S. S. and Han, J. H. (2005), A Case study on vegetation system applied on cutting slope, Korean Geo-Environmental Society, Vol. 6, No. 2, pp. 21~30 (In Korean).

Hui, L., Huisu, C., Fangyuan, Z., Fangyu, H., Tao, L., Wulong, Z. and Yujie, Y. (2016), Application design of concrete canvas (CC) in soil reinforced structure, Geotextiles and Geomembranes, Vol. 44, Issue 4, pp. 557~567. 10.1016/j.geotexmem.2016.03.003

Hui L., Huisu, C., Xiangyu, L. and Fangyuan, Z. (2019), Design and construction application of concrete canvas for slope, Powder Technology, Vol. 344, pp. 937~946. 10.1016/j.powtec.2018.12.075

Shin, M. H., Park, Y. K., Lee, S. H., Kim, H. K., Kim, K. T. (2000), A study on the stability evaluation of railway embankment under rainfall, The Korean Society For Railway, pp. 402~409 (In Korean).

Suched, L., Kittikhun, K. and Gayuh, A. P. (2020), Performance of geosynthetic cementitious composite mat and vetiver on soil erosion control, Journal of Mountain Science, Vol. 17, No. 6, pp. 1410~1422. 10.1007/s11629-019-5926-5

Ngo, T. P., Likitlersuang, S. and Takahashi, A. (2019), Performance of a geosynthetic cementitious composite mat for stabilising Sandy Slopes, Vol. 26, Issue 3, pp. 309~319. 10.1680/jgein.19.00020

Yoo, H. S., Kang, T. H., Jung, H. S. and Back, I. C. (2022), Strength and durability test of rapid hardening composite mat for protect railway slope in operation, Korean Geosynthetics Society, Vol. 21, No. 4, pp. 79~91.

Information

Publisher :Korean Geo-Environmental Society
Publisher(Ko) :한국지반환경공학회
Journal Title :Journal of the Korean Geo-Environmental Society
Journal Title(Ko) :한국지반환경공학회 논문집
Volume : 24
No :5
Pages :21-28
Received Date : 2023-03-23
Revised Date : 2023-03-27
Accepted Date : 2023-04-10
DOI :https://doi.org/10.14481/jkges.2023.24.5.21

Journal of the Korean Geo-Environmental Society ISSN:1598-0820(Print) 2714-1233(Online) 한국지반환경공학회 논문집

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