Journal of the Korean Geotechnical Society (한국지반공학회논문집)

Korean Geotechnical Society (한국지반공학회)
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Evaluation of Ground Characteristic Using the New Developed Screw Plate Load Test Device

새롭게 개발된 스크류재하시험장치를 이용한 지반특성 파악

  • Lee, Nam-Woo (Dept. of Civil and Evironment Engrg., Korea Maritime Univ.) ;
  • Hwang, Woong-Ki (Dept. of Civil and Evironment Engrg., Korea Maritime Univ.) ;
  • Choi, Yong-Kyu (Div. of Civil and Environmental Engrg., Kyungsung Univ.) ;
  • Kim, Tae-Hyung (Dept. of Civil and Evironment Engrg., Korea Maritime Univ.)
  • 이남우 (한국해양대학교 토목환경공학과) ;
  • 황웅기 (한국해양대학교 토목환경공학과) ;
  • 최용규 (경성대학교 건설.환경공학부) ;
  • 김태형 (한국해양대학교 토목환경공학과)
  • Received : 2009.11.27
  • Accepted : 2011.01.06
  • Published : 2011.03.31
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Abstract

Sampling disturbance can often introduce considerable errors in the laboratory estimation of geotechnical properties of soils. Accordingly, it causes inappropriative results in analysing field behavior. Therefore, a screw plate load test, one of in-situ test technique, is developed in this study, because in-situ testing techniques have advantages for the estimation of reliable geotechnical parameters. The screw plate load test, which was modified from the plate load test, conducts an experiment underneath ground by inserting a spiral type of auger screw. In this study, the structure and characteristics of the screw plate load test device are introduced in detail and the reliability of the device is examined through the analysis of the laboratory test results.

실내시험의 경우 샘플링으로 인한 시료의 교란은 종종 지반의 공학적 특성을 추정하는데 상당한 오차를 발생시키기 때문에 현장지반의 거동을 분석하는데 있어 부적절한 결과를 초래한다. 따라서 본 연구에서는 원위치시험법 중 하나인 스크류재하시험을 개발하였다. 그 이유는 신뢰성 있는 공학적 파라메터를 산정하기 위해서는 원위치시험법을 채택하는 것이 유리하기 때문이다. 스크류재하시험은 나선형의 오거 재하판을 지반 속에 관입하여 재하시험을 하는 평판 재하시험의 개량된 시험이다. 본 연구를 통해 스크류시험장치에 대한 구조와 특성을 자세히 소개하고 실내시험 결과를 통해 장치에 대한 신뢰성을 검증하였다.

Keywords

References

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