한국지반신소재학회논문집 (Journal of the Korean Geosynthetics Society)

  • 제7권3호
  • /
  • Pages.25-30
  • /
  • 2008
  • /
  • 2508-2876(pISSN)
  • /
  • 2287-9528(eISSN)
한국지반신소재학회 (Korean Geosynthetics Society)
권호 표지

순환골재 다공질 콘크리트말뚝으로 개량된 복합지반의 침하저감 및 압밀거동 특성

Characteristics of Settlement Reduction and Consolidation Behavior of Composition Ground Improved by Recycled-Aggregate Porous Concrete Pile

  • 유승경 (명지전문대학 토목과) ;
  • 김세원 (고려대학교 건축사회환경공학과) ;
  • 최항석 (고려대학교 건축사회환경공학과) ;
  • 이창민 ((주)평원엔지니어링 기술연구소)
  • You, Seung-Kyong (Dept. of Civil Engineering, Myongji College) ;
  • Kim, Se-Won (Dept. of Civil, Environmental & Architectural, Korea Univ.) ;
  • Choi, Hang-Seok (Dept. of Civil, Environmental & Architectural, Korea Univ.) ;
  • Lee, Chang-Min (Technology Research Institute, Pyeong-Won Engineering)
  • 투고 : 2008.08.08
  • 심사 : 2008.08.28
  • 발행 : 2008.09.30
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초록

본 논문에서는 순환골재 다공질 콘크리트말뚝(RAPP)공법에 대한 실내모형실험의 결과를 바탕으로 RAPP로 개량된 복합지반의 침하 및 압밀 거동 특성을 분석하였다. 이를 위하여 실내모형실험에서 관측된 복합지반의 침하량과 무보강 지반의 침하량을 비교하여 복합지반의 침하저감효과를 분석하였으며 복합지반의 압밀도를 산정하여 RAPP공법으로 인한 압밀촉진효과를 검토 하였다. RAPP공법으로 인한 복합지반의 침하저감효과는 상재하중증분이 증가할수록 감소하였으나 전반적으로 SCP공법에 의한 효과보다 크게 나타났으며 압밀촉진효과는 SCP공법과 유사하게 나타났다.

In this research, the characteristics of settlement and consolidation behavior of the composite ground formation reinforced by Recycled-Aggregate Porous Concrete Pile (RAPP) were evaluated by conducting a series of laboratory chamber tests. The effect of settlement reduction was verified by comparing the settlement of the composite ground formation with that of the unreinforced ground. In addition, it was studied how much the RAPP can accelerate consolidation in assessment of the degree of consolidation in the composite ground formation. The amount of settlement reduction was decreased with an increase on surcharge pressure, but it was greater than that of the SCP method. The RAPP and the SCP showed a similar rate of consolidation.

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