The model in this paper has few parameters and can reflect the aspects of load transfer function, such as hardening, softening and affects of confining stress.
模型具有参数较少且确定简单的特点，能反映荷载传递函数的性质，如硬化与软化，以及围压的影响。
Effect of initial mean effective stress on the behavior is examined by tests under undrained cyclic loading at several initial confining stresses with the same stress rations.
试验初步研究了通过用初始有效平均正应力归一化的有效应力路径，归一化有效应力路径有很好的一致性。
The plastic deformation of expansive clay can be reflected on the height, area and volume changes of soil body, but more significantly on height change due to the confining stress.
在侧限作用下，膨胀土体的范性变形在高度、面积及体积上均有所体现，但在高度方向上的发育最为充分；
Triaxial compression test with the remolded deep clay shows that its fraction Angle is lower than that of the common shallow clay, and the strength envelope deflects with high confining stress.
对深部黏土重塑土的常规三轴试验表明，其内摩擦角较一般浅层黏土低，而且在高围压下强度包线出现向下的转折。
Confining stress and consolidation ratio have little effect on damping ratio of the asphalt concrete, and the damping ratio has decreasing tendency along with the increasing of the temperature.
围压和固结比对沥青混凝土的阻尼比没有多大影响，阻尼比随着温度的升高有着降低的趋势。
The results show that peak stress of rock specimens increases with confining pressure.
研究结果表明，岩样的峰值应力都随着围压的增大而增大。
The pseudo-triaxial compression tests and confining pressure reduction tests were carried out for coal specimen strengths in different stress on servo-controlled testing machine.
基于在伺服试验机对煤样的常规三轴压缩和三轴卸围压试验，分析了煤样在不同应力条件下的强度和变形特征。
That the stress drops of natural earthquakes are not as great as that of laboratory experiment is caused by confining, stiffness.
天然地震应力降低于室内粘滑应力降是由围压介质刚度引起的。
Under the higher confining pressure, the shearing strength and the differential stress between the compression strength and confining pressure tend to be the constant.
至更高围压后，抗压强度与围压的应力差、抗剪强度将趋于某一常数。
The dynamic strength and parameters were determined, and some influential factors, such as particle composition, confining pressure, consolidated stress ratio and dynamic stress, were discussed.
确定了尾矿料的动力强度和动力参数。并探讨了颗粒组成、固结围压、固结压力比、动应力对动强度的影响。
The influence of rubber membrane penetration on volume change in large-scale triaxial tests of granular materials along stress paths with variational confining pressure need to be eliminated.
在围压变化的应力路径上对粗粒料进行大型三轴试验时，需要有效地消除橡皮膜嵌入量对试样体积变形量测的影响。
Granule failure of calcareous sand is very special at low stress level. The effect of confining pressure on granule farlure is analyzed and its deformation mechanism discussed.
针对低应力水平下钙质砂的颗粒破碎现象具有特殊性，分析了围压对钙质土颗粒破碎的影响，揭示其变形过程的力学机制；
The seepage velocity in peak stress decreases with the increase of confining pressure, and indicates obvious linear relationship.
煤样的峰值渗流速度随围压的增加而减小，呈现较明显的线性关系。
The critical dynamic stress decreases linearly with the increase of water content ratio, and increases linearly with the increase of confining pressure and consolidation ratio.
红黏土临界动应力随含水比的增大线性减小，随围压、固结比的增大线性增大。
Based on the conventional triaxial compression test of Three Gorges granites, the crack initiation stress under different confining pressures can be obtained by studying the crack strain curves.
从三峡花岗岩常规三轴实验出发，通过研究裂纹应变的变化规律，得到不同围压下花岗岩的起裂应力。
The dynamical stress produced by superposition or interference of reflected stress wave makes confining pressure reduce and change at low values.
地震动态应力使围压产生低值波动，一方面使围压减小、摩擦力减小；
The tensile and compressive tests can be conducted under three dimensional state of stress with confining pressure and a given temperature.
拉、压试验可以在带国压和温度的三向应力状态下进行。
The larger the confining pressure, the larger the frost heaving strain and stress.
围压越大，冻胀力和冻胀应变越大。
Based on the conventional triaxial compression tests of the Three Gorges granite, the complete stress-strain curves under different confining pressures have been attained.
通过对三峡花岗岩进行常规三轴压缩试验，得到不同围压下的应力—应变全过程曲线。
The results show as follows: Density and confining pressure are important factors affect mechanical properties for one coarse-grained soil, and they decide the stress-strain curve shape.
成果表明：对于同一种粗粒土，密度和围压是影响力学性质的重要因素，它们共同决定了粗粒土的应力应变曲线形态。
Various loading and unloading paths are carried in servo-controlled testing machine to study the relationships among axial stress, strain, confining pressure and circumference deformation.
在伺服试验机上对岩样进行了多种路径的加载、卸载试验，分析岩样轴向应变、环向变形与轴向应力、围压之间的关系。
The results show that creep stress, confining pressure and gas pressure are the important factors affecting the creep properties of the coal specimens;
试验结果显示，蠕变载荷、围压和瓦斯压力是影响含瓦斯煤样蠕变特性的重要因素；
Such additional stress may be explained as caused by the decrease in confining pressure.
附加的张性应力相当于减小围压。
Unloading confining pressure tests could be controlled by stress and deformation.
荷试验包括应力控制和变形控制两种方法。
During the unloading process of confining pressures, the permeability of coal being in the stage of stress flat roof showed an exponential function with the corresponding time.
卸围压开始后煤岩在应力平台阶段的渗透率与卸围压时间呈指数函数关系。
Study shows that there is normalization characteristic about the stress-strain curves of mediate-dense sands in the range of routine confining pressure.
通过研究中密砂三轴压缩的试验曲线，发现其应力–应变关系曲线在常规围压范围内具有归一化特性。
A method was proposed to forecast the stress-strain curves under arbitrary confining pressures based on the stress-strain curves obtained under the limited confining pressures.
对此进行了研究，并提出一套基于有限种围压情况下的应力—应变曲线预测任意围压下应力—应变曲线的方法。
A method was proposed to forecast the stress-strain curves under arbitrary confining pressures based on the stress-strain curves obtained under the limited confining pressures.
对此进行了研究，并提出一套基于有限种围压情况下的应力—应变曲线预测任意围压下应力—应变曲线的方法。
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