| 逆做法刚性桩复合地基的作用原理与应用研究 |
| |
| 引用本文： | 黄生根,曹辉.逆做法刚性桩复合地基的作用原理与应用研究[J].岩土力学,2005,26(8):1238-1242. |
| |
| 作者姓名： | 黄生根 曹辉 |
| |
| 作者单位： | 中国地质大学 工程学院，武汉 430074 |
| |
| 摘 要： | 深入分析了逆做法施工刚性桩复合地基在封桩前后的承载特性，推导出桩土应力比和桩身中性点深度计算公式。分析表明，对于逆做法刚性桩复合地基，调节桩土应力比（或桩土荷载分担比）可通过控制桩土间的沉降差（即封桩时 间）、置换率及桩长来实现。进行复合地基设计时应由变形控制。由一工程实例的实测结果验证，计算值与实测值吻合程度很高。
|
| 关 键 词： | 逆做法刚性桩复合地基 桩土应力比 中性点 沉降 |
| 文章编号： | 1000-7598-(2005)08-1238-05 |
| 收稿时间： | 2004-10-26 |
| 修稿时间： | 2004年10月26 |
Study on working principle and application of rigid piles composite foundation by reverse construction process |
| |
| HUANG Sheng-gen,CAO hui.Study on working principle and application of rigid piles composite foundation by reverse construction process[J].Rock and Soil Mechanics,2005,26(8):1238-1242. |
| |
| Authors: | HUANG Sheng-gen CAO hui |
| |
| Institution: | Faculty of Engineering, China University of Geosciences, Wuhan 430074, China |
| |
| Abstract: | The loading behaviors of the rigid piles-composite foundation by reverse construction process before and after sealing piles are analyzed respectively; and equations to calculate the stress ratio and the depth of the neutrality point are deduced. Based on the analysis results, the stress ratio (or load sharing ratio) can be adjusted by controlling the settlement difference between piles and soils, the replacement ratio and length of piles. Deformation is the main factor in design of rigid piles-composite foundation. A practical example shows that the calculation results are satisfied compared with the testing results. |
| |
| Keywords: | rigid piles-composite foundation by reverse construction process stress ratio between piles and soils neutrality point settlement |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《岩土力学》浏览原始摘要信息 |
| 点击此处可从《岩土力学》下载免费的PDF全文 |
