Proceedings of the Korean Geotechical Society Conference (한국지반공학회:학술대회논문집)

Korean Geotechnical Society (한국지반공학회)
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Spectrum response of frequency range for the unsaturated soil by salinity concentration

주파수영역 스펙트럼 반응을 이용한 불포화토의 염분농도 측정에 관한 연구

  • Kim, Man-Il (Groundwater & Geotechnics Research Center, Korea Institute of Water and Environment, KOWACO) ;
  • Jeong, Gyo-Cheol (Dept. of Earth & Environmental Science, Andong National University) ;
  • Kim, Hyoung-Soo (Groundwater & Geotechnics Research Center, Korea Institute of Water and Environment, KOWACO) ;
  • Suk, Hee-Jun (Groundwater & Geotechnics Research Center, Korea Institute of Water and Environment, KOWACO)
  • 김만일 (한국수자원공사 수자원연구원 지하수지반연구소) ;
  • 정교철 (안동대학교 자연과학대학 지구환경과학과) ;
  • 김형수 (한국수자원공사 수자원연구원 지하수지반연구소) ;
  • 석희준 (한국수자원공사 수자원연구원 지하수지반연구소)
  • Published : 2005.10.07
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Abstract

In this study we carried out to evaluate the salinity concentration and volumetric water content of unsaturated soil column using frequency domain Reflectometry with vector network analyzer (FDR-V) measurement system. All of experiments were considered to the effect of temperature which ranges from l0$^{\circ}C$ to 50$^{\circ}C$ increasing the interval of l0$^{\circ}C$ controlled by the constant temperature container. From the results the responses of complex dielectric constant which consist of the real part and imaginary parts have the effect of volumetric water content and concentration of salinity at 1GHz. Use of derived equations (1) and (2) can be calculated the physical parameters such as volumetric water content and salinity concentration of unsaturated media by the responses of complex dielectric constant.

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