Paper Title:
Capillary Hysteresis Internal Variable Model of Unsaturated Soils
  Abstract

Soil-water characteristic curve describes the relationship between suction and volumetric water content of unsaturated soils. Air-enter have great influence on the drying scanning curves while the starting points of the scanning curve were at the highly saturated range. Based on capillary hysteresis internal variable model and conventional soil-water characteristics theory of unsaturated soils, a modified model which can simulate soil-water characteristic relationship that could consider the influence of air-enter is proposed. The influence of the air-enter on the drying scanning curves while the starting points were at the highly saturated range could be considered while this model is used. Numerical calculations are carried out on several kinds of soils. The simulating results show that the modified model is able to simulate the drying scanning curves while the starting points of the scanning curve were at the highly saturated range better than the capillary hysteresis internal variable model does.

  Info
Periodical
Edited by
Robert Zhu
Pages
215-220
DOI
10.4028/www.scientific.net/AMM.137.215
Citation
H. A. Li, Q. X. Wang, Y. X. Yang, G. H. Zhu, L. X. Wang, Z. Y. Zhang, "Capillary Hysteresis Internal Variable Model of Unsaturated Soils", Applied Mechanics and Materials, Vol. 137, pp. 215-220, 2012
Online since
October 2011
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