CLC number: TU411
On-line Access: 2024-08-27
Received: 2023-10-17
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ZHOU Jian, YU Jian-lin. Influences affecting the soil-water characteristic curve[J]. Journal of Zhejiang University Science A, 2005, 6(8): 797-804.
@article{title="Influences affecting the soil-water characteristic curve",
author="ZHOU Jian, YU Jian-lin",
journal="Journal of Zhejiang University Science A",
volume="6",
number="8",
pages="797-804",
year="2005",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2005.A0797"
}
%0 Journal Article
%T Influences affecting the soil-water characteristic curve
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%A YU Jian-lin
%J Journal of Zhejiang University SCIENCE A
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%@ 1673-565X
%D 2005
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2005.A0797
TY - JOUR
T1 - Influences affecting the soil-water characteristic curve
A1 - ZHOU Jian
A1 - YU Jian-lin
J0 - Journal of Zhejiang University Science A
VL - 6
IS - 8
SP - 797
EP - 804
%@ 1673-565X
Y1 - 2005
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2005.A0797
Abstract: The soil-water characteristic curve (SWCC) is the primary partially saturated soil information as its behavior and properties can be derived from it. Although there have been many studies of unsaturated soils and the SWCC, there is still no combined constitutive model that can simulate soil characteristics accurately. In cases when hydraulic hysteresis is dominant (e.g. under cyclic loading) it is particularly important to use the SWCC. In the past decades, several mathematical expressions have been proposed to model the curve. There are various influences on the SWCC as a source of information, so the curves obtained from conventional tests often cannot be directly applied; and the mathematical expressions from one scenario cannot be used to simulate another situation. The effects of void ratio, initial water content, stress state and high suction were studied in this work revealing that water content and stress state are more important than the other effects; but that the influences tend to decrease when suction increases. The van Genuchten model was modified to simulate better the changes in the degree of saturation at low values of suction. Predictions were compared with experimental results to determine the simulation capability of the model.
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