CONSTITUTIVE RELATION OF UNSATURATED SOIL BY USE OF THE MIXTURE THEORY(Ⅰ)-NONLIN

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CONSTITUTIVE RELATION OF UNSATURATED SOIL BY USE OF THE MIXTURE THEORY(Ⅰ)-NONLINEAR CONSTITUTIVE EQUATIONS AND FIELD EQUATIONS

The nonlinear constitutive equations and field equations of unsaturated soils were cons tructed on the basis of mixture theory. The soils were treated as the mixture composed of three constituents. First, from the researches of soil mechanics, some basic assumptions about the unsaturated soil mixture were made, and the entropy inequality of unsaturated soil mixture was derived. Then, with the common method usually used to deal with the constitutive problems in mixture theory, the nonlinear constitutive equations were obtained. Finally, putting the constitutive equations of constituents into the balance equations of momentum, the nonlinear field equations of constituents were set up. The balance equation of energy of unsaturated soil was also given, and thus the complete equations for solving the thermodynamic process of unsaturated soil was formed.水利论文${ [;a-t+b.Aa

作 者: 黄义 张引科  
作者单位:黄义(Science College, Xi' an University of Architecture & Technology,Xi'an 710055, P.R.China)
Z2w%?#@ NK]_~0张引科(Science College, Xi' an University of Architecture & Technology,Xi'an 710055, P.R.China;Department of Geotechnical Engineering, Tongji University,Shanghai 200092, P.R. China) 
刊 名:应用数学和力学(英文版)  EI SCI
英文刊名:APPLIED MATHEMATICS AND MECHANICS(ENGLISH EDITION) 
年,卷(期):2003 24(2) 
分类号:O359.2 
关键词:mixture theory   unsaturated soil   entropy inequality   constitutive equations   field equations  
机标关键词:MIXTURE THEORYUNSATURATED SOILFIELD EQUATIONSconstitutive equationsunsaturated soilsfield equationsmixture theorythermodynamic processentropy inequalitybalance equationssoil mechanicsdeal with 
基金项目:国家自然科学基金,Special Research Plan of the Education Department of Shaanxi Province 
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