Journal of the Korean Geosynthetics Society (한국지반신소재학회논문집)

Korean Geosynthetics Society (한국지반신소재학회)
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Reinforcement Effect of Rapid Hardening Composite Mat for Protect Railway Slope in Operation

운영중인 철도비탈면 보호를 위한 초속경 복합매트 보강 효과

  • Kang, Tae-Hee (Dept. of Railroad Construction and Safety Engineering, Dongyang University) ;
  • Jung, Hyuk-Sang (Dept. of Railroad Construction and Safety Engineering, Dongyang University) ;
  • Kim, Jin-Hwan (Dept. of Railroad Construction and Safety Engineering, Dongyang University) ;
  • Back, In-Chul (Dept. of Technology Reserch)
  • Received : 2021.11.05
  • Accepted : 2021.12.25
  • Published : 2021.12.31
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Abstract

This paper is dealt with railway slope stability for slope reinforcement using a geosynthetic concrete composite mat(GCCM). Recently, according to a change in weather caused by global warming, train operation has been restricted by the loss of backfill slope at the roadbed, which is consists of gravel, due to typhoons and heavy rainfall. In addition, the amount of damage is getting more significant than the cost of restoration, and the safety of workers is worried. In order to improve this limitation, a slope stability analysis was applied with a rapid hardening composite mat so that it can quickly secure a construction surface with increased workability and work stability and reduce maintenance costs by preventing re-loss in case of heavy rain and fundamentally blocking vegetation. As a result of the analysis, it was confirmed that the increase in safety factor was confirmed when the rapid harding composite mat was applied.

본 논문에서는 초속경 복합매트를 이용하여 비탈면 보강 시 비탈면 안정해석에 대한 내용을 다루었다. 최근 지구온난화에 따른 기상이변으로 태풍, 집중호우 등에 의해 철도 성토 노반 비탈면 유실로 열차 운행이 제한되고 있다. 또한 복구 비용보다 피해액이 증가하고 있으며 유실로 인한 작업환경 저하로 작업자들의 안전이 우려되고 있다. 이를 위해 기존에 다양한 비탈면 보호공법이 개발되었지만 철도 현장 특성상 중장비의 투입이 곤란하여 적용이 곤란한 실정이다. 따라서 본 연구에서는 시공기면 확보가 용이하여 시공성 및 작업 안정성을 증대시키며 집중호우 시 재유실 방지 및 식생생장을 원천적으로 차단하여 유지보수 비용을 절감할 수 있는 초속경 복합매트를 적용한 비탈면 안정해석을 실시하였다. 해석 결과 초속경 복합매트의 적용시 안전율 증가가 확인되었지만 초속경 복합매트의 두께에 따른 안전율 증가는 미미한 것으로 확인되었다.

Keywords

Acknowledgement

This research was by the Korea Agency for Infrastructure Technology Advancement (KAIA) grant funded by the Ministry of Land, Infrastructure and Transport (Grant 21TBIP-C161320-01).

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