| 摘要: |
| 从单桩与桩间土的荷载-沉降曲线出发，采用荷载-沉降的双曲线模型，给出了多元复合地基桩土应力比的解析解。分析表明，桩土应力比随荷载的变化形式有3种，具体的变化形式与桩、桩间土的初始切向压缩模量和极限承载强度有关。实例计算表明，所得解析解与实测桩土应力比值基本吻合。 |
| 关键词: 多元复合地基 双曲线模型 桩土应力比 初始切向压缩模量 极限承载强度 |
| DOI： |
| 分类号: |
| 基金项目:国家自然科学基金项目(10172027) |
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| Stress ratio between piles and soils of multi-element composite foundation |
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| Abstract: |
| The analytical solving of stress ratio between piles and soils for multi-element composite foundation is given by using the hyperbola model of load-settlement based on the curve of load-settlement of the single pile and soil.The paper discusses the effect of applied load upon the stress ratio between piles and soils.There are three types of n-p which are mainly concerned with the limited bearing capacity and initial tangential modulus.The results from the analytical calculation are found to be in agreement with that by actual solution. |
| Key words: multi-element composite foundation hyperbola model stress ratio between piles and soils initial tangential compact modulus limited bearing capacity |
