Study on the Test of Soil Water Characteristic Curve

Article Preview

Abstract:

The test of soil water characteristic curve (SWCC) and its mathematic model are present. The SWCC can describe the relationship between unsaturated soil matric suction and water content. Matric suction is an important parameter to address when studying the engineering properties of unsaturated soil. And while the measurement of substrate attraction is a very difficult issue, it is also one of the biggest obstacles in the engineering applications of unsaturated soil. By analyzing and researching the test data of SWCC researchers can initially establish the mathematic model which is the SWCC equation. The Van Genuchten model and the Fredlund and Xing model were used to simulate better the changes between the volume water content and the matric suction. Predictions were compared with experimental results to determine the simulation capability of the model for the soil of Beijing.

You might also be interested in these eBooks

Info:

Periodical:

Advanced Materials Research (Volumes 261-263)

Pages:

1094-1098

Citation:

Online since:

May 2011

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2011 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] Brooks R.H., and Corey A.T. Hydraulic properties of porous medium. Colorado State University (Fort Collins). Hydrology Paper 3. (1964).

Google Scholar

[2] Van Genuchten M Th. A close-from equation for predicting the hydraulic conductivity of unsaturated soils. Soil Sci. 1980, 44: 892-898.

DOI: 10.2136/sssaj1980.03615995004400050002x

Google Scholar

[3] Fredlund D G, Xing A, Fredlund M D. The relationship of the unsaturated soil shear strength function to the soil-water characteristics. Can. Geotech, 1996, 33(3): 440-448.

DOI: 10.1139/t96-065

Google Scholar

[4] Lebedeff. A. F. The movement of ground and soil waters . Proc. 1st Int. Cong. Soil. 1927, 1: 459-494.

Google Scholar

[5] Sillers W.S. and Fredlund D.G. Statistical assessment of soil-water characteristic curve models for geotechnical engineering, Canadian Geotechnical Journal. 2001, Vol. 38: 1297-1313.

DOI: 10.1139/t01-066

Google Scholar

[6] ZHOU Jian, YU Jianlin . Influences affecting the soil-water characteristic curve, Journal of Zhejiang University SCIENCE. 2005 6A(8): 797-804.

DOI: 10.1631/jzus.2005.a0797

Google Scholar