Journal of the Korean Geotechnical Society (한국지반공학회논문집)

Korean Geotechnical Society (한국지반공학회)
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Application of the New Degree of Compaction Evaluation Method

새로운 다짐도 평가기법의 적용성에 관한 연구

  • Park, Keun-Bo (Geotechnical Engineering Research Division, SOC Research Institute, KICT) ;
  • Kim, Ju-Hyong (Geotechnical Engineering Research Division, SOC Research Institute, KICT)
  • 박근보 (한국건설기술연구원 SOC성능연구소 Geo-인프라연구실) ;
  • 김주형 (한국건설기술연구원 SOC성능연구소 Geo-인프라연구실)
  • Received : 2010.06.30
  • Accepted : 2011.12.09
  • Published : 2012.02.29
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Abstract

CMV(Compaction Meter Value) obtained from compaction results using an accelerometer, which measures the impact on the ground and the resilient force of the ground, is compared with the other degree of compaction through regression analysis. As a result, there is no correlation between results from conventional test methods (e.g., the plate load test and field density test) and the degree of compaction evaluated by either the Geogauge or the dyanamic cone penetrometer. To assess the possibility of replacing the conventional test methods with new test methods using CMV, several degrees of compaction tests were carried out. Those results show that the CMV obtained from compaction results using an accelerometer can be used as a substitute for conventional methods to evaluate the stiffness characteristics of compacted soil.

현장 다짐기에 가속도계를 이용한 연속다짐 평가장치를 부착하여 얻은 지반의 지지력 평가값 및 기존의 다짐도 평가장치의 결과 값들을 회귀분석하여 비교하였다. 회귀분석 평가 결과, 특정 성토재료에서 Geogauge와 동적콘관입시험은 기존 다짐도 평가(평판재하시험 및 다짐도시험) 결과와의 상관관계가 거의 없는 것으로 나타났다. 또한 CMV를 이용한 평가법이 기존 다짐도 평가를 대체할 수 있는지를 알아보기 위하여 여러 가지 다짐도 평가를 실시하였다. 그 결과 가속도계를 이용한 CMV는 다져진 지반의 강성 특성을 빠르고 편리하게 평가할 수 있을 것으로 판단된다.

Keywords

References

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