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Journal of Zhejiang University SCIENCE A 2008 Vol.9 No.3 P.293~302

10.1631/jzus.A071620


A new equation for dielectric permittivity of saturated soils based on polarization mechanics


Author(s):  Ren-peng CHEN, Yun-min CHEN, Wei XU, Zhi-gang LIANG, Wei FENG

Affiliation(s):  MOE Key Laboratory of Soft Soils and Geoenvironmental Engineering, Zhejiang University, Hangzhou 310027, China; more

Corresponding email(s):   chenrp@zju.edu.cn, chenyunmin@zju.edu.cn

Key Words:  Dielectric permittivity, Saturated soils, Polarization, Time domain reflectometry (TDR)


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Ren-peng CHEN, Yun-min CHEN, Wei XU, Zhi-gang LIANG, Wei FENG. A new equation for dielectric permittivity of saturated soils based on polarization mechanics[J]. Journal of Zhejiang University Science A, 2008, 9(1): 293~302.

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%A Ren-peng CHEN
%A Yun-min CHEN
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%J Journal of Zhejiang University SCIENCE A
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T1 - A new equation for dielectric permittivity of saturated soils based on polarization mechanics
A1 - Ren-peng CHEN
A1 - Yun-min CHEN
A1 - Wei XU
A1 - Zhi-gang LIANG
A1 - Wei FENG
J0 - Journal of Zhejiang University Science A
VL - 9
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SP - 293
EP - 302
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Y1 - 2008
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Abstract: 
Based on polarization mechanisms, such as electronic, ionic and orientational polarizations, a new equation for dielectric permittivity of soil is proposed to interpret the dielectric behavior of a mixture like soil, in terms of polarization process of its components and the interactions between its components. The dielectric permittivity is expressed in terms of a frequency-dependent part and a frequency-independent part. These two parts correspond to polarizations occurred at different frequency range. It is a new volumetric mixing model with theoretical background. Based on time domain reflectometry (TDR) measurements of saturated soil samples and test data from literature, comparisons of this model with some well established mixing models show that the curves for saturated sand soils and slurries resulted from the new equation, which agree well with TDR measurements, are close to those calculated from Birchak’s model.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

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