›› 2006, Vol. 27 ›› Issue (S1): 90-94.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Matric suction of unsaturated soils in one-dimensional steady flow

LI Shun-qun1, ZHAO Shao-fei2, WANG Xue-zhi1   

  1. 1. Department of Civil Engineering, Liaoning Institute of Technology, Jinzhou 121001, China; 2. School of Civil Engineering, Shandong University of Science and Technology, Qingdao 266510, China
  • Received:2006-05-25 Published:2006-12-15

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Abstract: Potential energy of water phase in unsaturated soils and corresponding change during the process of water be soaked into initially completely dry soils are discussed qualitatively. Then, based on water phase continuity requirement, generalized Darcy’s law and Gardner’s empirical equation on relationship between coefficient of hydraulic conductivity and matric suction, formulas are established and solved by finite difference method to calculate matric suction in unsaturated soils along depth in the condition of one-dimensional steady flow, respectively for permeation and for evaporation. Not only matric suction, but also head and coefficient of hydraulic conductivity can be attained easily by the proposed method.

Key words: unsaturated soil, steady flow, matric suction, coefficient of hydraulic conductivity, potential energy of water

CLC Number: 

  • P 64
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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