한국농공학회논문집 (Journal of The Korean Society of Agricultural Engineers)

  • 제50권1호
  • /
  • Pages.61-68
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  • 2008
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  • 1738-3692(pISSN)
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  • 2093-7709(eISSN)
한국농공학회 (The Korean Society of Agricultural Engineers)
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Fall Cone을 이용한 풍화도 측정(실트질 모래에 대하여)

Estimation of Weathered Degree Using Fall cone in Weathered Soil ; Silty Sand

  • 손영환 (위스콘신주립대학교 토목 및 환경공학과 연구원) ;
  • 김성필 (서울대학교 지역시스템공학 연구원) ;
  • 장병욱 (서울대학교 지역시스템공학)
  • 발행 : 2008.01.31
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초록

It is essential to analyze and classify the physical characteristics of weathered granite for engineering purposes. This paper is to suggest a physical method to determine the degree of weathering of weathered soils. A new classification method for determining the degree of weathering is suggested, based upon the results from laboratory tests including fall cone test. According to the proposed physical method using fall cone apparatus, the measured values of the samples from the same area show distinctive difference of weathering. The water content tends to increase with increasing the degree of weathering at the same penetration in fall cone test. And relationship between CWI and water content are expressed one equation in Hwaseong area and Ilsan area.

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참고문헌

  1. Feng, T. W., 2000, "Fall-cone penetration and water content relationship of clays", Geotechnique 50, No.2, pp.181-187 https://doi.org/10.1680/geot.2000.50.2.181
  2. Houlsby, G. T., 1982, "Theoretical analysis of the fall cone test", Geotechnique 32, No. 2, pp.111-118 https://doi.org/10.1680/geot.1982.32.2.111
  3. Jayawardena and Eiji, Izawa., 1994, "A New Chemical Index of Weathering for Metamorphic Silicate Rocks in Tropical Regions : A study from Sri Lanka", Engineering Geology, Vol. 36, pp.303-310 https://doi.org/10.1016/0013-7952(94)90011-6
  4. Koumoto, T. and Houlsby, G. T., 2001, "Theory and practice of the fall cone test", Geotechnique 51, No.8, pp.701-712 https://doi.org/10.1680/geot.51.8.701.40475
  5. Park, B. K., Lee, K. C., 1999, "Evaluation Methods of Weathering Degree for Korean Decomposed Granite Soils", Journal of Korean Geotechnical Society Vol.15, No.1, pp.127-140
  6. Reiche, P., 1943, "Reiche, Graphic representation of chemical weathering", Journal of Sedimentary Petrology 13, pp. 58-68
  7. Ruxton, B. P., 1968, "Measures of the degree of chemical weathering of rocks", Journal of Geology 76, pp. 518-527 https://doi.org/10.1086/627357
  8. Sueoka, T., 1988, "Identification and Classification of Granite Residual Soils Using Chemical Weathering Index", Second Int. Conf. Geomech. Trop. Soils, Singapore 1, pp. 55-61
  9. Wood, D. M., 1982, "Cone penetrometer and liquid limit", Cambridge University Engineering Department, Technical notes, pp.152-157
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피인용 문헌

  1. The Estimation of the Extent of Weathering using Fractal Dimension through a Comparison with Chemical Characteristic vol.54, pp.2, 2012, https://doi.org/10.5389/KSAE.2012.54.2.127