토목섬유 보강재로 보강된 철도 노반의 반복하중 하중지지력 연구 = Load Carrying Capacity of Geosynthetic Reinforced Railway Subgrade Under Cyclic Load

국문 초록 (Abstract)

본 논문에서는 고속철도의 반복하중에 의한 토목섬유로 보강된 철도노반의 지지력 특성을 다루었다. 토목섬유로 보강된 철도노반은 투수성 포장 하부구조의 지반에 지오셀 및 지오그리드 보강을 하여 모사하였다. 포장구조체의 하중지지력 증가효과를 고찰하기 위하여 무보강상태의 지반과 지오셀 보강의 경우, 3층 지오그리드 보강인 경우에 대하여 총 3가지 실험 케이스의 실내 축소모형실험을 진행하였으며 잔류변형량은 초기 동적하중이 작용하는 경우가 2차 동적하중 작용시 보다 크게 나타났다. 지오셀 보강보다 3층 지오그리드 보강된 포장 하부구조에서 더 큰 지지력이 발현 되는 것으로 나타났다.

다국어 초록 (Multilingual Abstract)

This paper studied the characteristics of bearing capacity of railway reinforced with geosynthetic against repetitive loading of train. The railway that was based on the porous pavement substructure ground and reinforced with geosynthetic was copied. In order to analyze load carrying capacity of geosynthetic, we have had 3cases experiments - in the first case, the ground was non reinforced, second case was reinforced geocell and last case was reinforced geogrid - and all of them were reduced-scale laboratory tests. The results of the analyses indicated that the bearing capacity of the reinforced geogrid increases much more than the reinforced geocell. Residual deformation of the initial cyclic loadwas larger than the secondary cyclic loads.

목차 (Table of Contents)

• ABSTRACT
• 요지
• 1. 서론
• 2. 고속철도 노반에 대한 보강재 적용
• 3. 축소모형 재하실험
• 4. 실험결과 및 고찰
• 5. 결론
• References

참고문헌 (Reference)

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2 신은철, "다공성 지오셀을 이용한 지반 보강효과에 관한 연구" 한국토목섬유학회 8 (8): 33-40, 2009

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