| CONSTITUTIVE RELATION OF UNSATURATED SOIL BY USE OF THE MIXTURE THEORY (Ⅱ)-LINEAR CONSTITUTIVE EQUATIONS AND FIELD EQUATIONS |
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| 作者单位： | 1. Science College, Xi’an University of Architecture & Technology, Xi’an 710055, P.R.China;2. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, P.R.China |
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| 摘 要： | The linear constitutive equations and field equations of unsaturated soils were obtained through linearizing the nonlinear equations given in the first part of this work. The linear equations were expressed in the forms similar to Biot’s equations for saturated porous media. The Darcy’s laws of unsaturated soil were proved. It is shown that Biot’s equations of saturated porous media are the simplification of the theory. All these illustrate that constructing constitutive relation of unsaturated soil on the base of mixture theory is rational.
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| 关 键 词： | mixture theory unsaturated soil linear constitutive equation linear field equation Darcy’s law Biot’s equations |
| 收稿时间： | 20 August 2001 |
Constitutive relation of unsaturated soil by use of the mixture theory (II)—linear constitutive equations and field equations |
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| Authors: | Huang Yi Zhang Yin-ke |
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| Institution: | (1) Science College, Xi'an University of Architecture & Technology, 710055 Xi'an, PR China;(2) Department of Geotechnical Engineering, Tongji University, 200092 Shanghai, PR China |
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| Abstract: | The linear constitutive equations and field equations of unsaturated soils were obtained through linearizing the nonlinear
equations given in the first part of this work. The linear equations were expressed in the forms similar to Biot's equations
for saturated porous media. The Darcy's laws of unsaturated soil were proved. It is shown that Biot's equations of saturated
porous media are the simplification of the theory. All these illustrate that constructing constitutive relation of unsaturated
soil on the base of mixture theory is rational.
Foundation items: the National Natural Science Foundation of China (59678003); Special Research Plan of the Education Department of Shaanxi
Province (01JK178)
Biographies: HUANG Yi (1936−) ZHANG Yin-ke (1964−) |
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| Keywords: | mixture theory unsaturated soil linear constitutive equation linear field equation Darcy's law Biot's equations |
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