Underlying parameters affecting estimation of unsaturated permeability of soils

被引:0
|
作者
Rahimi, A. [1 ]
Rahardjo, H. [1 ]
Leong, E. C. [1 ]
机构
[1] Nanyang Technol Univ, Singapore 639798, Singapore
来源
UNSATURATED SOILS: RESEARCH & APPLICATIONS, VOLS 1 AND 2 | 2014年
关键词
WATER CHARACTERISTIC CURVE; HYDRAULIC CONDUCTIVITY;
D O I
暂无
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
To date numerous indirect models have been proposed to estimate unsaturated permeability function of a soil from its Soil-Water Characteristic Curve (SWCC). These models were usually developed by combining a soil-water characteristic curve best-fit equation and a relative permeability (integration method) equation. However, not all the models lead to the same results and they vary significantly from one to another. Therefore, there is a need to investigate the underlying parameters which cause the variation between different models. A comparative study was performed on some existing and new combined estimation models. It was found from the study, that the SWCC best-fit equation and the measurement range of SWCC data greatly affect the estimation of unsaturated permeability of soils as compared to relative permeability equations.
引用
收藏
页码:1073 / 1077
页数:5
相关论文
共 50 条
  • [21] Modification of triaxial apparatus for permeability measurement of unsaturated soils
    Goh, S. G.
    Rahardjo, H.
    Leong, E. C.
    SOILS AND FOUNDATIONS, 2015, 55 (01) : 63 - 73
  • [22] Engineering properties of unsaturated soils (volume change and permeability)
    Premalatha, K
    UNSATURATED SOILS FOR ASIA, 2000, : 353 - 356
  • [23] Validation of a Relative Permeability Model for Bioclogging in Unsaturated Soils
    Mostafa, M.
    Van Geel, P. J.
    VADOSE ZONE JOURNAL, 2012, 11 (01):
  • [24] Permeability function for unsaturated soils with different initial densities
    Cai, Guoqing
    Zhou, Annan
    Sheng, Daichao
    CANADIAN GEOTECHNICAL JOURNAL, 2014, 51 (12) : 1456 - 1467
  • [25] Capillarity, matrix potential and water permeability in unsaturated soils
    Henoegl, O
    PROCEEDINGS OF THE FIFTEENTH INTERNATIONAL CONFERENCE ON SOIL MECHANICS AND GEOTECHNICAL ENGINEERING VOLS 1-3, 2001, : 583 - 587
  • [26] A note on the estimation of permeability of granular soils
    Trenter, NA
    QUARTERLY JOURNAL OF ENGINEERING GEOLOGY, 1999, 32 : 383 - 388
  • [27] A method for determining hydraulic parameters of unsaturated soils
    Chen Hui
    Wei Chang-fu
    Chen Pan
    Yi Pan-pan
    Yan Rong-tao
    ROCK AND SOIL MECHANICS, 2010, 31 (10) : 3348 - 3353
  • [28] Shear Strength Parameters of Unsaturated Residual Soils
    Huat, Bujang B. K.
    Ali, Faisal Hj.
    Abdullah, Affendi
    Mariappan, Saravanan
    Hashim, Soenita
    JURNAL KEJURUTERAAN, 2005, 17 : 33 - 46
  • [29] Estimation of volume change functions for unsaturated soils
    Fredlund, MD
    Fredlund, DG
    Wilson, GW
    UNSATURATED SOILS FOR ASIA, 2000, : 663 - 668
  • [30] Vapour Transport in Low Permeability Unsaturated Soils with Capillary Effects
    S. Olivella
    A. Gens
    Transport in Porous Media, 2000, 40 : 219 - 241