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.
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.
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.
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.
以呼和浩特绕城高速公路碎石桩复合地基为工程依托，通过静载荷试验，对碎石桩复合地基的桩土应力比进行现场测试。
Relied on the project of the gravel pile composite foundation in Huhhot rounding highway, the pile-soil stress ratio was tested by static load test in the field.
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.
通过在路堤下埋设钢弦式压力盒，获得了路堤下低强度砼桩、水泥搅拌桩以及土的应力比数值随时间的变化规律，并分析了三者荷载分担比随时间的变化特性。
Through pressure metre under embankment, the magnitude of pile-soil stress ratio and its variation with the time are measured, and the variation of pile-soil load share ratio with time is analyzed.
通过在路堤下埋设钢弦式压力盒，获得了路堤下低强度砼桩、水泥搅拌桩以及土的应力比数值随时间的变化规律，并分析了三者荷载分担比随时间的变化特性。
Through pressure metre under embankment, the magnitude of pile-soil stress ratio and its variation with the time are measured, and the variation of pile-soil load share ratio with time is analyzed.
应用推荐