A non linear model for unsaturated soils is presented.
提出了一个较完整的非饱和土的非线性模型。
At last, the effect of soil gradation on the shear strength of unsaturated soils is analyzed qualitatively.
最后分析了土颗粒半径差异、土体平均粒径大小对非饱和土强度的影响。
A theoretical model has been proposed to describe fully coupled moisture, air and heat transfer in unsaturated soils.
旨在介绍一个描述非饱和土孔隙气、水、汽、热耦合运动的理论模型。
Parameter inversion of solute transport inside unsaturated soils was generally solved through a nonlinear operator equation.
非饱和土中溶质迁移参数反演问题可以归结为非线性算子方程的求解问题。
Unsaturated soils water is the connection of surface water and ground water, it is the source that the field crop living depends on.
非饱和土壤中的水分是联系地表水与地下水的纽带，是田间作物赖以生存的源泉。
The procedure of heavy metal cadmium ion transport through unsaturated soils was simulated by virtue of laboratory soil column tests.
采用实验室土柱法研究了重金属镉离子在非饱和土壤中的迁移规律。
The numerical model of one-dimensional solute transport through unsaturated soils is formulated by characteristic finite element method.
建立了一维非饱和土壤中溶质运移的特征有限元数值模型。
The confused concept is clarified; and suitable stress variables in establishing the constitutive model of unsaturated soils are proposed.
旨在澄清目前的混淆概念，为非饱和土本构模型建立提出合理的应力变量。
The numerical model of one-dimensional horizontal solute transport and vertical solute transport through unsaturated soils is formulated by FVM.
建立了一维非饱和土壤中水平和垂向溶质运移的有限体积法数值模型。
Although a number of constitutive models for unsaturated soils exist in the literature, some fundamental questions have not been fully answered.
目前对非饱和土的本构模型进行了很多研究，但有一些基础的问题还没得到很好的解决。
The numerical model of one-dimensional vertical water infiltration through unsaturated soils is constructed by characteristic finite element method.
建立了一维非饱和土壤水分垂向入渗的特征有限元数值模型。
A simplified consolidation theory for unsaturated soils was proposed based on an assumption that pore air pressure equaled to the atmosphere pressure.
基于孔隙气压力等于大气压力的假定，建议了针对非饱和土的简化固结理论。
Based on testing results, the influence of water content on shear strength is analyzed; and shear strength formula of unsaturated soils is established.
根据试验结果分析含水率对非饱和土抗剪强度的影响，建立非饱和土的实用抗剪强度公式。
Based on this absorbed suction concept, the classification of saturation in soil and a principle of effective stress are proposed for unsaturated soils.
基于湿吸力概念，分析并给出了有效应力公式，建议了非饱和土的状态分类及有效应力原理。
But at present, the effect of seepage flow in unsaturated soils is often ignored in slope stability analysis, such as earth DAMS, masonry DAMS and dikes.
但目前，在土石坝渗流安全分析和坝坡稳定分析中较少考虑非饱和土渗流作用的影响。
The thesis studies the theories of water vapor transfer in unsaturated soil, and gets the water contents equations of water vapor transfer in unsaturated soils.
本论文进行了非饱和土气态水迁移的理论研究，得到非饱和土中气态水迁移引起的含水量变化方程。
In this paper, an integrated finite difference method (IFDM) for numerical analysis of transient coupled heat and moisture flow in unsaturated soils is described.
本文介绍了求解非饱和土壤中热量和水分耦合传输问题的一种数值方法——积分有限差分方法(IFDM)。
The basic principle, approach and precautions for measuring both the matric and the total suction of unsaturated soils using the filter paper method are introduced.
介绍了滤纸法量测非饱和土吸力的工作原理，以及滤纸接触法量测土体基质吸力和非接触法量测土体总吸力的试验方法和注意事项。
The formula can appropriately utilize existing engineering experience and data, which is a new way to application of the soils mechanics for unsaturated soils in engineering.
而且广义朗肯土压力公式能够合理利用已有的工程经验和工程数据，为非饱和土力学的工程实用化提供了一条新的思路。
In General, the deformation of Unsaturated Soils (loess, expansive Soil et al.) is complicated with 4 essential effects as follows: loading, wetting, temperature and creeping.
膨胀性或湿陷性非饱和土一般存在四种变形效应，即力效应、水效应、温度效应和流变效应。
The properties of soils, results of measurements and related meteorological information are presented. Some discussions on measurement methods of matrix suction in unsaturated soils are given.
本文提交土性指标、吸力测量的结果和有关气象资料，并对非饱和土基质吸力的量测方法进行讨论。
Based on the constitutive framework of unsaturated soils established by the continuum porous medium soil mechanics, an elastoplastic model for unsaturated soils in triaxial stress state is formulated.
基于连续介质土力学的本构模型框架，提出了一个三轴应力状态下的非饱和土本构模型。
The comparisons between the measured and predicted results indicate that the proposed model can quantitatively predict the hydraulic and mechanical behaviour of unsaturated expansive soils.
预测结果表明该模型能够定量的描述膨胀性非饱和土的水力和力学特性。
Experimental results showed that the resilient modulus of unsaturated cohesive subgrade soils reduced with the increase of deviator stress and the decrease of matric suction.
研究结果显示重复荷载下之偏应力愈大则回弹模量愈小，且回弹模量随基质吸力的增加而增加。
Cracks in unsaturated expansive soils influence the engineering properties of soils. The purpose of this paper is to research the tensile crack propagation depth of unsaturated expansive soils.
膨胀土的裂隙性是膨胀土区别于其他土类的重要特征之一，裂隙的存在严重影响着膨胀土体的工程特性。
Unsaturated soil from a geotechnical engineering viewpoint has different behavior from the soils that are saturated.
作为一种岩土工程材料，土在非饱和状态下的工程性质与其在饱和状态下是不同的。
Unsaturated soil from a geotechnical engineering viewpoint has different behavior from the soils that are saturated.
作为一种岩土工程材料，土在非饱和状态下的工程性质与其在饱和状态下是不同的。
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