| 超长钻孔桩竖向承载性状的试验研究 |
| |
| 引用本文： | 王陶,马晔.超长钻孔桩竖向承载性状的试验研究[J].岩土力学,2005,26(7):1053-1062. |
| |
| 作者姓名： | 王陶 马晔 |
| |
| 作者单位： | 1. 清华大学,土木水利学院,北京,100084;交通部公路科学研究所,北京,100088
2. 交通部公路科学研究所,北京,100088 |
| |
| 摘 要： | 利用工程桩作为锚桩，并在反力系统中充分应用预应力技术，建立了大吨位静载试验装置。分析了超长桩的承载性能和荷载传递机理，结果表明：超长桩的荷载-沉降曲线没有明显破坏点。其竖向荷载主要依靠桩侧摩阻力进行传递，桩侧摩阻力的发挥存在最佳深度范围。超长桩的承载性能还受土体特性、施工工艺等因素影响。
|
| 关 键 词： | 超长桩 静载试验 桩侧阻力 桩端阻力 |
| 文章编号： | 1000-7598-(2005)07-1053-05 |
| 收稿时间： | 2004-02-25 |
| 修稿时间： | 2004年2月25日 |
Study on over-length drilled pile bearing behavior under vertical load |
| |
| WANG Tao,MA Ye.Study on over-length drilled pile bearing behavior under vertical load[J].Rock and Soil Mechanics,2005,26(7):1053-1062. |
| |
| Authors: | WANG Tao MA Ye |
| |
| Institution: | 1. School of Civil Engineering, Tsinghua University, Beijing 100084, China; 2. Research Institute of Highway, Ministry of Communications, Beijing 100088, China |
| |
| Abstract: | Static heavy load test of over-length drilled pile is carried out by taking prestressed working pile as part of anchor system,the test equipment is set up capable of heavy weight loading. On the basis of in-situ data of test,the bearing behavior and load transmission characteristics are analyzed. There is no obvious failure feature in over-length drilled piles. The vertical load transmission mostly depends on the side friction of pile,and there is an optimal range of depth for side friction. Besides,the bearing capacity of over-length drilled pile will also be influenced by the factors like constructing technologies and soil properties. |
| |
| Keywords: | over-length drilled pile static load test side friction of pile tip resistance of pile |
| 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 |
|
