• 한국방재학회 논문집
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• 제4권1호
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• pp.65-75
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• 2004

자연재해에 기인한 철도노반의 유실 및 파괴는 유실된 선로복구를 위한 공사가 장기간 소요됨으로써 정상적인 철도운행에 지장을 초래하여 사회적, 경제적으로 많은 비용 및 시간의 손실을 유발시키고 있다. 본 연구에서는 자연재해로 인해 유실된 철도노반에 대한 신속하고 안전한 복구대책으로서 토목섬유로 제조된 Soilbag의 적용성을 평가하고자 정적하중 및 모사반복 열차하중 재하 실대형시험을 수행하였다. 실대형시험을 통해 심도별 연직토압과 침하량을 계측한 결과, 하중분산효과에 기인한 토압 및 침하 저감 효과를 확인할 수 있었으며 시공성과 장기적 안정성을 고려할 때 Soilbag 공법의 현장적용성은 가능할 것으로 판단된다.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2003년도 추계학술대회 논문집(II)
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• pp.92-97
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• 2003

Roadbed failure due to the rainfall may bring out social and economic demage such as the loss of life and property, the consumption of time and cost for recovery, and the delay of logistics in railway. In this study, the method using Geotextile Container was applied to rehabilitation of the railway roadbed which was failed by rainfall. The real scale tests with the simulated train loading were performed in order to evaluate the dynamic performance at the railway roadbed using Geotextile Container. The results of these tests were compared with unreinforced and reinforced cases with Geotextile Container, respectively. The data gathered by various measurement devices from these real scale tests would be useful to evaluate and understand the roadbed with Geotextile Container. Furthermore, the results of this study would be useful to ensure the workability and to save much time for restoration and to be widely applied to practical use.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2003년도 추계학술대회 논문집(II)
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• pp.403-410
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• 2003

Annual roadbed failure due to the rainfall has brought out the social and economic damage such as the loss of life and property, the consumption of time and cost for recovery, and the delay of logistics in railway. However, there was not an appropriate way that could be used as a permanent solution. As a suggestion of the answer to this problem, the method using Geotextile Container was considered for the rehabilitation of the failed railway roadbed, and the numerical analysis is applied for the evaluation of the slope stability. This study focused on the most common case among the roadbed failures. In addition, the investigation for the applicability of this method as a permanent use was made.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2003년도 추계학술대회 논문집(II)
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• pp.79-84
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• 2003

Utilizing of the geotextile container shows several advantages such as standardized construction, factory manufactured products, the control of quality, workability, and economical point of view. Recently this technique can be applied to rehabilitate the loss of rail roadbed due to the heavy rainfall. In this study, a large-scale laboratory test were conducted with simulation of static performance on the geotextile container reinforced rail roadbed. Based on the laboratory test results, the vertical pressure distribution with respect to the depth, and settlement of rail roadbed were measured and compared test results between geotextile container reinforced case and unreinforced case. Thus, the effectiveness of reinforcement was evaluated in terms of its performance and stability.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2002년도 추계학술대회 논문집(I)
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• pp.587-595
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• 2002

Geotextile containers for restoration of slopes form the interface between the containers during the restored to lost slopes, and therefore the relation displacements are developed including the sliding on the surface. Since, the shear strength on these interfaces is less than that of fill material in the container, the characteristics of shear strength on the interface governs the behavior of the restoration slopes. In general, a lot of natural properties of geotexiles is required to evaluate the safty of the geotextiles, Among the properties, the shear characteristics between geotextiles and soil is a important variable to assess the safety. From the results of full scale direct shear test, the residual shear strength is recommanded to use for design factors since a large deformation possibly occures on the geotextile containers.

• 한국지반신소재학회논문집
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• 제16권4호
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• pp.21-31
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• 2017

식생토낭 공법은 토목섬유 콘테이너 공법의 일종으로 옹벽건설시 시공환경에 따른 영향을 최소화할 수 있으며, 자연친화적 공법이다. 본 연구에서는 식생토낭 보강토벽 시공방법을 식생토낭 비다짐 옹벽, 식생토낭 다짐 옹벽, 중력및 일반쌓기 혼용 옹벽, 게비온과 일반쌓기 혼용 옹벽 등 4가지 시공방법 대하여 계측기를 매설하고, 식생토낭 보강토벽의 거동특성을 평가하였다. 시공계측 결과, 식생토낭 일반쌓기 비다짐 구간에서의 변위가 게비온과 식생토낭 혼용구간 보다 최대 30%이상 발생하였다. 또한, 뒤채움부 무보강 2m이상 식생토낭 보강토벽은 변위에 대해 불안정한 것으로 평가되었다. 한편, 토압의 분포는 시공직후 모든 구간 Rankine 및 Coulomb의 주동토압 이내에 분포하는 것으로 나타났다. 그러나 집중강우 이후 일반쌓기 구간은 토압의 증가폭이 크게 나타났으며, 게비온과 일반쌓기 혼용구간이 일반쌓기 구간과 비교하여 보다 안정한 것으로 평가되었다.