Relation between matric suction and water content is notably nonlinear.
基质吸力与含水量呈强非线性关系；
The results show that the matric suction is lose on account of the rainwater infiltration;
分析结果表明：雨水入渗引起土壤基质吸力的大量丧失；
Matric suction is relevant with temperature of water-air system, density of pore-water, and relative humidity of pore-air of unsaturated soil.
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。
As a result, the research on the relationship among water content and matric suction and the soil strength are of value to civil engineering projects.
因而，研究含水量与基质吸力和边坡土体强度的变化规律都具有很重要的工程意义。
Furthermore, the tension suction, which was closely related with but rather different from the matric suction, was presented on the basis of thermodynamics.
然后基于热力学原理，提出了另外一个与基质吸力紧密相关而又不同的吸力概念-张力吸力。
Firstly, a series of unsaturated loess tests were carried out under matric suction testing, shear strength, structural strength, unsaturated triaxial tests.
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。
It is very difficult to resolve or measure matric suction in engineering practice, because the matric suction is not constant especially under undrained condition.
实际工程中求解和测定吸力比较困难，特别在不排水条件下，吸力并非常量，从而难以确定。
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。
It is regarded that the wetting deformation is generated by the loss of matrix suction, and a constitutive relationship between lost matric suction and wetting deformation deduced.
认为湿化变形是由基质吸力丧失而产生，由此推导出丧失基质吸力与湿化变形的定量关系。
Based on the field monitored results of volumetric water content and matric suction, field soil-water characteristic curves for the soils at different depths at the crest are determined.
根据土体体积含水量和吸力值的野外监测结果，得出了边坡坡顶土体不同深度的野外土-水特征曲线。
The stress-strain relationship depends on the combinational style of net normal stress and matric suction, and suction enhances the stress-strain stiffness feature during triaxial shear test.
在剪切试验中，非饱和黏土应力应变关系依赖于净围压和基质吸力的不同组合，基质吸力增强土体应力–应变关系的硬化特性；
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 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。
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