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Volume 36 Issue 5
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CAI Guo-qing, SHENG Dai-chao, ZHOU An-nan. Approach for predicting the relative coefficient of permeability of unsaturated soils with different initial void ratios[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(5): 827-835. DOI: 10.11779/CJGE201405004
Citation: CAI Guo-qing, SHENG Dai-chao, ZHOU An-nan. Approach for predicting the relative coefficient of permeability of unsaturated soils with different initial void ratios[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(5): 827-835. DOI: 10.11779/CJGE201405004
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Approach for predicting the relative coefficient of permeability of unsaturated soils with different initial void ratios

  • 1. School of Civil Engineering and Architecture, Beijing Jiaotong University, Beijing 100044, China; 2. ARC Centre of Excellence for Geotechnical Science and Engineering, The University of Newcastle, Newcastle 2308, Australia; 3. School of Civil, Environmental and Chemical Engineering, Royal Melbourne Institute of Technology (RMIT), Melbourne 3001, Australia

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  • Received Date: September 09, 2013
  • Published Date: May 20, 2014
    Graphical Abstract
    • Abstract
  • A simple approach is proposed to quantify the effect of the initial void ratio on the relative coefficient of permeability for unsaturated soils based on the incremental relationship between the degree of saturation and the initial void ratio and the prediction of the permeability function for unsaturated soils by use of the soil-water characteristic curve (SWCC). For a given soil and the SWCC equation, only one additional parameter is introduced, which can be conveniently calibrated by the conventional SWCC tests. The relative coefficient of permeability for the same soil with different initial void ratios can be predicted by this approach. The proposed approach is validated through experimental data from the literatures in which both the SWCCs and the coefficients of permeability with different initial void ratios are measured.
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    • References (32)
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