非饱和土直剪仪备有15档剪切速率。
The gearbox of the direct shear device may provide 15 shear rates.
提出了一个较完整的非饱和土的非线性模型。
回顾了几十年来非饱和土有效应力研究的主要成果。
The main research results of effective stress principle of unsaturated soil several decades are reviewed.
临界状态模型是非饱和土结构理论中的一个重要的内容。
The critical state model is an important part of unsaturated soil structure theory.
非饱和土中水分迁移通常有液态水和气态水迁移两种形式。
Usually there is two forms of water transfer which is water vapor transfer and liquid water transfer in unsaturated soil.
考虑吸力的非饱和土研究较为精确，但吸力量测起来比较困难。
It is precise for unsaturated soil study to use suction as parameter, however, that brings much difficulty.
文章最后总结归纳了影响非饱和土电阻率的主要的三大类因素。
At the end, the factors affecting the electrical resistivity of soil were summarized and analyzed.
该研究为非饱和土理论应用于工程实践提供了一种新的实用方法。
It provides a new feasible method for application of unsaturated soil theory to engineering practice.
最后探讨了非饱和土中表面裂缝的形成对边坡稳定和变形的影响。
The influence of cracks in clay surface on the stabilization and deformation of slope was discussed.
论证了增湿路径、干密度以及含水量对非饱和土渗透特性的影响。
And it proves that the wetting, dry density and water content have influence on the coefficient of permeability.
由于非饱和土广泛存在于自然界当中，它与基坑工程是密切相关的。
As the unsaturated soil widely existing in nature, it is closely related to the excavation.
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。
A theoretical model has been proposed to describe fully coupled moisture, air and heat transfer in unsaturated soils.
非饱和土的固结变形特性及其分析理论一直是土力学的研究热点问题。
The consolidation deformation characteristics of unsaturated soil and its analysis methods are key issues in the field of soil mechanics.
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。
At last, the effect of soil gradation on the shear strength of unsaturated soils is analyzed qualitatively.
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。
Parameter inversion of solute transport inside unsaturated soils was generally solved through a nonlinear operator equation.
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 confused concept is clarified; and suitable stress variables in establishing the constitutive model of unsaturated soils are proposed.
本文通过室内吸力控制的非饱和土三轴剪切试验，研究上海地区软土的强度特征。
Some tri-axial tests were carried out herein to analyze unsaturated soil strength for Shanghai soft clay.
根据试验结果建立了考虑温度影响的非饱和土抗剪强度公式和切线杨氏模量公式。
The formulas of shear strength and Young's tangent modulus taking account of temperature were proposed.
基于己建立的非饱和土中的波动方程，研究了瞬间扭转荷载作用下桩的动力响应问题。
Based on the wave equation in unsaturated soil, the dynamic response of a pile under transient torsional loading was theoretically investigated.
由于非饱和土的复杂性和多变性，其渗透特性明显不同于饱和土，并且试验难度较大。
For complexity and diversity of unsaturated soil behaviors, there lies a great difference in permeability characteristics between unsaturated soil and saturated soil.
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。
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.
本文在评价了现有非饱和土有效应力参数确定方法的基础上，提出了一种新的求解方法。
Based on the assessment of existing methods for determining the effective stress parameters of unsaturated soil, a new method is proposed.
非饱和土的基质吸力与其中水—气体系的温度、孔隙水的密度和孔隙气的相对湿度有关。
Matric suction is relevant with temperature of water-air system, density of pore-water, and relative humidity of pore-air of unsaturated soil.
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。
Although a number of constitutive models for unsaturated soils exist in the literature, some fundamental questions have not been fully answered.
首先，对非饱和黄土进行了土的吸力测试、抗剪强度试验、结构强度和非饱和土三轴试验。
Firstly, a series of unsaturated loess tests were carried out under matric suction testing, shear strength, structural strength, unsaturated triaxial tests.
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 testing results, the influence of water content on shear strength is analyzed; and shear strength formula of unsaturated soils is established.
然后选取珞珈山土样进行了室内非饱和土的三轴剪切试验，得出试验土样的抗剪强度参数。
Secondly, Luojiashan soil samples were selected for the unsaturated triaxial tests and the shear strength parameters were obtained.
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。
Based on this absorbed suction concept, the classification of saturation in soil and a principle of effective stress are proposed for unsaturated soils.
比较和讨论各种非饱和土吸力量测手段各自的优越性和不足点以及在工程中各自的应用领域。
An attempt is made to compare and discuss the respective advantages and shortcomings of each measuring technique and suggest the best choice in different engineering applications.
比较和讨论各种非饱和土吸力量测手段各自的优越性和不足点以及在工程中各自的应用领域。
An attempt is made to compare and discuss the respective advantages and shortcomings of each measuring technique and suggest the best choice in different engineering applications.
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