碎石桩；复合地基；静载荷实验；桩土应力比。
Gravel pile; Composite foundation; Static load test; Pile-soil stress ratio.
碎石桩；复合地基；静载荷试验；桩土应力比。
讨论了桩土应力比与置换率及桩周土变形模量的关系。
Relationships between the pile-soil stress ratio, the replacement ratio, and the pile lateral soil modulus of deformation are discussed.
文中还研究了粉煤灰桩的桩土应力比及桩身应力传递特性。
The stress ratio between pile and soil of the said pile and stress transmission property of pile are also discussed.
柔性桩轴力有所增加，桩土应力比与桩的荷载分担比变化不明显。
Short-pile axial force increased, pile-soil stress ratio and the pile load distribution ratio did not change significantly.
桩土应力比和桩土差异沉降理论计算值与工程实例实测值对应较好。
The theoretical value of the pile-soil stress ratios and the differential settlement between piles and soil are close to the observed ones.
通过两组试验得到了素混凝土桩复合地基桩土应力分布的一些规律。
The application of composite foundation of plain concrete pile in chemical equipment reformation;
然后对桩土应力、深层土压力、桩身应力应变和沉降测试结果进行分析对比。
Then the test results of the pile-soil stress, the deep soil pressure, stress and strain of the pile and sedimentation are analyzed.
通过对某铁路专用线粉喷桩复合地基承载特性的测试试验，分析了桩、土应力的变化规律。
Through research and test on the composite foundation bearing capacity of cement soil pile used in the railway line, the regulation of piles and soil is analyzed.
褥垫层对桩土应力的调节作用，复合地基的应力随褥垫层的模量和褥垫层的厚度变化规律。
The adjustment function of cushion from its thickness and modulus on the stress of pile and soil was studied.
通过工程实例的分析计算，验证计算模型的合理性，并分析了各因素与桩土应力比的关系。
The model is verified through practical projects, and the relationships of the pile-soil stress ratios with correlative influence factors are analyzed.
分析表明：面积置换率对桩土应力比的取值影响不大，桩土模量比是影响应力比取值的重要因素。
The analysis show that the influence given by the area replacement rate is very little, while the modular ratio of pile and soil is a important influence factor.
结果表明，桩土相互作用阻尼系数随着桩周土应力增大而增大，而且还与土质和土体的含水状态有关。
It was shown that damping coefficient increased with increasing stress of soil around pile and was influenced by soil property and water content.
计算了桩间土应力折减系数，发现荷载超过某一数值以后，桩间土应力折减系数保持在一个稳定的数值附近。
Stress reduction coefficient of pile and nearby soil is calculated, and it is a steadily numerical value at some load.
研究了褥垫层厚度变化对桩身轴力传递、桩侧摩阻力分布、桩端阻力发挥、桩土荷载分担及桩土应力比的影响。
Axial force transmission, distribution of skin friction, tip resistance of pile, as well as tress ratio between pile and soil are changing with pillow.
分析内容主要包括以下几个方面：1、桩体模量对复合地基沉降特性的影响，桩体模量对桩土应力特性的影响；
They are the several aspects as the followings:1 , The influence of the pile modulus on the deformation of CMP composite foundation and on the stress of pile and soil were analyzed;
采用桩土分析法，计算分析在一个荷载周期内，弹性路基内各研究节点的位移、竖向应力、桩土应力比的瞬态响应。
Then, transient response of vertical displacement, vertical stress and pile-soil stress ratio of some nodes in the elastic subgrade are computed in one single load cycle.
在分析带帽刚性桩复合地基试验成果的基础上，提出复合桩土应力比的概念，以合理反映带帽桩复合地基的力学性状。
The conception of stress ratio of composite pile-soil was put forward on the basis of test data of composite foundation of rigid pile with cap to describe its mechanical behavior.
利用分数阶微积分理论提出等应变率加载情况下的软土应力—应变关系。关系式显示应力—应变之间呈乘幂函数关系。
On the basis of the fractional calculus operator theory, the stress-strain relation of soft soil under the condition of loading with constant strain rate is proposed.
利用计算机数值模拟，定量的分析了各种因素对柔性基础下桩体复合地基中等沉面位置、桩土应力比、桩土应力分布的影响。
Numerical simulation had quantitatively analyzed the factors influencing the position of equal subsides, the pile-soil stress ratio, and the distribution of pile-soil stress.
并以桩土应力比为纽带分析桩与桩间土体中应力应变的关系，确定桩体复合地基的竖向变形协调方程，介绍了复合地基的变形与稳定性分析方法。
Analyzed the stress-strain relation of pile and soil by the stress ratio, deduced the vertical deformation and harmony equation, introduced the analysis means of deformation and stabilization.
研究了将功能梯度材料中应力波传播的计算模型应用到土介质中，提出了梯度土介质的概念。
The model of wave propagation in functionally graded material (FGM) is introduced to soil medium, and the concept of functionally graded soil medium is brought forward.
在分析中，考虑土的非线性应力-应变关系、土钉与土体的相互作用，以及分步施工过程。
In this finite model, the nonlinear stress - strain relationship of soil, the soil - nail interaction and the staged construction are all taken into consideration.
土坡稳定问题的塑性极限分析法与惯用的极限平衡分析法不同的是它考虑了土的应力——应变关系，属土坡稳定分析的新技术。
The plasticity analyses for stability problems is differentiated from the conventional limit equilibrium method by the former in consideration of the soil's stress-strain relationship.
通过室内试验，对水泥改良土的物理性质、应力-应变关系、强度特性、压缩特性进行了研究。
Based on indoor tests, the physical properties, stress-strain relationship, intensity behaviors and compressibility of the modified soil with cement are studied in the paper.
根据散体材料桩复合地基荷载传递及变形机理，分析了散体材料桩与桩间土之间的应力应变关系。
Based on the mechanism of load transfer and deformation of discrete material piles, the relationship between stress and strain of pile and soil is analyzed.
其次，指出这种高密度的冰碛土的应力应变特性属于非线性弹、塑性性质。
Next, it was indicated that the stress-strain characteristics of the high density till were nonlinear elastoplastic.
其次，指出这种高密度的冰碛土的应力应变特性属于非线性弹、塑性性质。
Next, it was indicated that the stress-strain characteristics of the high density till were nonlinear elastoplastic.
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