Journal of the Korean Geosynthetics Society (한국지반신소재학회논문집)

Korean Geosynthetics Society (한국지반신소재학회)
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Analysis of Correlation among Various Compaction Evaluation Methods for Estimating of the Bearing Capacity on Subgrades

노상토의 지지력 평가를 위한 다짐평가기법의 상관성 분석

  • Lee, Joonyong (Geotechnical Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology) ;
  • Jeoung, Jae-Hyeung (Geotechnical Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology) ;
  • Choi, Changho (Geotechnical Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology) ;
  • Kim, Jin-Young (Geotechnical Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology) ;
  • Jin, Hyunwoo (Department of Geospace Engineering, Korea University of Science & Technology)
  • Received : 2015.08.20
  • Accepted : 2015.11.09
  • Published : 2015.12.30
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Abstract

Even though the plate bearing test (PBT) to evaluate the load baring capacity and the field density test to evaluate the relative density are mainly used for quality control of soil compaction in Korea, use of the dynamic cone penetrometer test (DCPT) and the dynamic plate bearing test (DPBT) considering economic feasibility, rapidity, and suitability for field conditions increase to use for quality control of soil compaction. In this study, bearing capacity and relative density of subgrade with thickness of 20 cm, 30 cm, and 40 cm are estimated using PBT, DCPT, DPBT and field density test in three field compaction tests, and the relationship among various compaction evaluation methods is analyzed and discussed.

국내에서의 도로 하부지반의 품질 관리는 주로 하중 지지력을 확인하는 평판재하시험과 상대 다짐도를 구하기 위한 현장들밀도시험을 이용하고 있으나, 최근에는 현장 여건에 맞는 적합성과 경제성, 신속성 등을 고려한 동적 콘 관입 시험과 동평판재하시험 등의 이용이 증가하는 상황이다. 이에 본 연구에서는 이러한 여러 다짐평가기법간의 상관성을 분석하기 위하여 실제 도로공사현장 3개소에서 노상두께 20cm, 30cm, 40cm에 대한 평판재하시험, 현장들밀도시험, 동적 콘 관입시험, 동평판재하시험을 이용하여 노상토의 지지력을 평가하였다. 또한, 각각의 다짐평가기법간의 결과를 비교 분석하여, 향후 활용법에 대하여 살펴보았다.

Keywords

References

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