Journal of the Korean Geosynthetics Society (한국지반신소재학회논문집)

Korean Geosynthetics Society (한국지반신소재학회)
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A Case Study on the Damage of Reinforced Soil Walls due to Inflow Water

유입수로 인한 보강토옹벽의 피해사례 연구

  • Kwang-Wu, Lee (Dept. of Geotechnical Engineering Research, KICT) ;
  • In-hui, Cho (Geotechnical Engineering Dept., IDEARTH Co., Ltd.) ;
  • Gi-gwon, Hong (Dept. of Civil Engineering, Halla University)
  • Received : 2022.12.09
  • Accepted : 2022.12.25
  • Published : 2022.12.30
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Abstract

The use of reinforced soil walls has grown significantly over the last few decades due to their ease construction and economical efficiency. Many damage cases of the reinforced soil walls have been reported as the use of reinforced soil walls increases. Inappropriate design and construction management mainly induce these problems. This paper describes case study on two damaged geogrid reinforced soil walls. The causes of the damage are investigated through the site investigations and proper countermeasures are proposed.

1990년대 중반 이래로 경제성과 시공성이 우수한 보강토옹벽이 콘크리트 옹벽을 급속도로 대체하였다. 보강토옹벽의 적용이 증가하면서 피해사례 또한 증가하고 있다. 보강토옹벽의 파손은 주로 부적절한 설계와 시공관리에 기인하는 경우가 많다. 본 논문에서는 보강토옹벽 상부 및 배면으로의 유입수로 인해 피해가 발생한 2개소 현장을 대상으로 피해 발생 원인을 검토하고 복구대책을 제안하였다. 일련의 현장 지반조사를 통해 손상된 보강토옹벽의 피해발생 원인과 손상정도를 파악하였으며, 손상 범위 및 정도를 고려하여 쏘일네일링으로 보강토체를 보강하는 방안을 제시하였다.

Keywords

References

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