QI Guoqing, HUANG Runqiu. 2004: AN UNIVERSAL MATHEMATICAL MODEL OF SOIL-WATER CHARACTERISTIC CURVE. JOURNAL OF ENGINEERING GEOLOGY, 12(2): 182-186.
    Citation: QI Guoqing, HUANG Runqiu. 2004: AN UNIVERSAL MATHEMATICAL MODEL OF SOIL-WATER CHARACTERISTIC CURVE. JOURNAL OF ENGINEERING GEOLOGY, 12(2): 182-186.

    AN UNIVERSAL MATHEMATICAL MODEL OF SOIL-WATER CHARACTERISTIC CURVE

    • The soil-water characteristic curve is very important for studying the physical and mechanical characteristics of unsaturated soils. Strength, volumetric strain and permeability coefficient, and even moisture-distribution above ground water surface can be determined by the soil-water characteristic curve. A mathematical model of soil-water characteristic curve is established, based on soil, structure and the shape of soil-water characteristic curve. Mathematical models of soil-water characteristic curve differ due to varying physical and mechanical properties of unsaturated soils. It is, thus, necessary to establish universal expression of soil-water characteristic curve. In this paper, mathematical models of soil-water characteristic curve are divided into four types based on the patterns of mathematical models. An universal mathematical model with unified functional pattern is derived. The soil-water characteristic curve of loessal soils in north Shaannxi loess plateau, is used to verify the universal mathematical model.
    • loading

    Catalog

      /

      DownLoad:  Full-Size Img  PowerPoint
      Return
      Return