Evaluation of geotechnical properties of saturated soil using dielectric responses

Man Il Kim, Byung Gon Chae, Makoto Nishigaki

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

In the field of geotechnical environment, physical parameters of soil such as volumetric water content, degree of saturation, porosity and effective porosity are important hydrological factors. Especially, these parameters can be applied to the analysis of slope failure, groundwater recharge and infiltration of various substances into the ground by rainfall. In the case of a landslide induced by heavy rainfall, landslide monitoring is one of important technologies that detects the distribution of volumetric water content, wetting front movement, and infiltration characteristics for the earth materials. The infiltration of water mainly occurs through pores of porous media. Infiltration of fluid substances is controlled by the connectivity of pore spaces. Therefore, it is explained by the concepts of porosity and effective porosity. In this study, the applicability of dielectric methods and proposed dielectric mixing models (DMMs) are discussed, and a soil column laboratory test is performed for measuring effective porosity of fully saturated sand using the permittivity method. This study showed that the ratios of effective porosity to porosity of saturated standard sands and river sands were 0.856 and 0.843, respectively. Based on the experimental results, using the frequency domain reflectometry (FDR) and frequency domain reflectometry with vector network analyzer (FDR-V) systems, the relative effective porosity is almost over 85 % of the relative porosity in the saturated standard sands and river sands. Consequently, the dielectric measurement systems are considered to be effective in measuring the physical parameters of saturated soil. Moreover, this dielectric method can contribute to estimate porosity and effective porosity of saturated porous media because it is easier and faster than the previous in-situ methods.

Original languageEnglish
Pages (from-to)83-93
Number of pages11
JournalGeosciences Journal
Volume12
Issue number1
DOIs
Publication statusPublished - Mar 31 2008

Fingerprint

geotechnical property
porosity
reflectometry
soil
infiltration
sand
porous medium
landslide
evaluation
water content
wetting front
rainfall
permittivity
slope failure
soil column
pore space
river
connectivity
recharge
saturation

Keywords

  • Dielectric constant
  • Dielectric mixing models (DMMs)
  • Effective porosity
  • Porosity
  • Saturated soil

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)
  • Environmental Science(all)

Cite this

Evaluation of geotechnical properties of saturated soil using dielectric responses. / Kim, Man Il; Chae, Byung Gon; Nishigaki, Makoto.

In: Geosciences Journal, Vol. 12, No. 1, 31.03.2008, p. 83-93.

Research output: Contribution to journalArticle

@article{75499aad39cd49e1ae188bca1f43fc1a,
title = "Evaluation of geotechnical properties of saturated soil using dielectric responses",
abstract = "In the field of geotechnical environment, physical parameters of soil such as volumetric water content, degree of saturation, porosity and effective porosity are important hydrological factors. Especially, these parameters can be applied to the analysis of slope failure, groundwater recharge and infiltration of various substances into the ground by rainfall. In the case of a landslide induced by heavy rainfall, landslide monitoring is one of important technologies that detects the distribution of volumetric water content, wetting front movement, and infiltration characteristics for the earth materials. The infiltration of water mainly occurs through pores of porous media. Infiltration of fluid substances is controlled by the connectivity of pore spaces. Therefore, it is explained by the concepts of porosity and effective porosity. In this study, the applicability of dielectric methods and proposed dielectric mixing models (DMMs) are discussed, and a soil column laboratory test is performed for measuring effective porosity of fully saturated sand using the permittivity method. This study showed that the ratios of effective porosity to porosity of saturated standard sands and river sands were 0.856 and 0.843, respectively. Based on the experimental results, using the frequency domain reflectometry (FDR) and frequency domain reflectometry with vector network analyzer (FDR-V) systems, the relative effective porosity is almost over 85 {\%} of the relative porosity in the saturated standard sands and river sands. Consequently, the dielectric measurement systems are considered to be effective in measuring the physical parameters of saturated soil. Moreover, this dielectric method can contribute to estimate porosity and effective porosity of saturated porous media because it is easier and faster than the previous in-situ methods.",
keywords = "Dielectric constant, Dielectric mixing models (DMMs), Effective porosity, Porosity, Saturated soil",
author = "Kim, {Man Il} and Chae, {Byung Gon} and Makoto Nishigaki",
year = "2008",
month = "3",
day = "31",
doi = "10.1007/s12303-008-0010-0",
language = "English",
volume = "12",
pages = "83--93",
journal = "Geosciences Journal",
issn = "1226-4806",
publisher = "Korean Association of Geoscience Societies",
number = "1",

}

TY - JOUR

T1 - Evaluation of geotechnical properties of saturated soil using dielectric responses

AU - Kim, Man Il

AU - Chae, Byung Gon

AU - Nishigaki, Makoto

PY - 2008/3/31

Y1 - 2008/3/31

N2 - In the field of geotechnical environment, physical parameters of soil such as volumetric water content, degree of saturation, porosity and effective porosity are important hydrological factors. Especially, these parameters can be applied to the analysis of slope failure, groundwater recharge and infiltration of various substances into the ground by rainfall. In the case of a landslide induced by heavy rainfall, landslide monitoring is one of important technologies that detects the distribution of volumetric water content, wetting front movement, and infiltration characteristics for the earth materials. The infiltration of water mainly occurs through pores of porous media. Infiltration of fluid substances is controlled by the connectivity of pore spaces. Therefore, it is explained by the concepts of porosity and effective porosity. In this study, the applicability of dielectric methods and proposed dielectric mixing models (DMMs) are discussed, and a soil column laboratory test is performed for measuring effective porosity of fully saturated sand using the permittivity method. This study showed that the ratios of effective porosity to porosity of saturated standard sands and river sands were 0.856 and 0.843, respectively. Based on the experimental results, using the frequency domain reflectometry (FDR) and frequency domain reflectometry with vector network analyzer (FDR-V) systems, the relative effective porosity is almost over 85 % of the relative porosity in the saturated standard sands and river sands. Consequently, the dielectric measurement systems are considered to be effective in measuring the physical parameters of saturated soil. Moreover, this dielectric method can contribute to estimate porosity and effective porosity of saturated porous media because it is easier and faster than the previous in-situ methods.

AB - In the field of geotechnical environment, physical parameters of soil such as volumetric water content, degree of saturation, porosity and effective porosity are important hydrological factors. Especially, these parameters can be applied to the analysis of slope failure, groundwater recharge and infiltration of various substances into the ground by rainfall. In the case of a landslide induced by heavy rainfall, landslide monitoring is one of important technologies that detects the distribution of volumetric water content, wetting front movement, and infiltration characteristics for the earth materials. The infiltration of water mainly occurs through pores of porous media. Infiltration of fluid substances is controlled by the connectivity of pore spaces. Therefore, it is explained by the concepts of porosity and effective porosity. In this study, the applicability of dielectric methods and proposed dielectric mixing models (DMMs) are discussed, and a soil column laboratory test is performed for measuring effective porosity of fully saturated sand using the permittivity method. This study showed that the ratios of effective porosity to porosity of saturated standard sands and river sands were 0.856 and 0.843, respectively. Based on the experimental results, using the frequency domain reflectometry (FDR) and frequency domain reflectometry with vector network analyzer (FDR-V) systems, the relative effective porosity is almost over 85 % of the relative porosity in the saturated standard sands and river sands. Consequently, the dielectric measurement systems are considered to be effective in measuring the physical parameters of saturated soil. Moreover, this dielectric method can contribute to estimate porosity and effective porosity of saturated porous media because it is easier and faster than the previous in-situ methods.

KW - Dielectric constant

KW - Dielectric mixing models (DMMs)

KW - Effective porosity

KW - Porosity

KW - Saturated soil

UR - http://www.scopus.com/inward/record.url?scp=42649127080&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=42649127080&partnerID=8YFLogxK

U2 - 10.1007/s12303-008-0010-0

DO - 10.1007/s12303-008-0010-0

M3 - Article

AN - SCOPUS:42649127080

VL - 12

SP - 83

EP - 93

JO - Geosciences Journal

JF - Geosciences Journal

SN - 1226-4806

IS - 1

ER -