| 刚-柔性桩复合地基中刚性桩和自由状态下刚性桩性能比较 |
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| 引用本文： | 朱奎,徐日庆,吴冬虎,毛西平.刚-柔性桩复合地基中刚性桩和自由状态下刚性桩性能比较[J].岩土力学,2007,28(11):2353-2358. |
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| 作者姓名： | 朱奎 徐日庆 吴冬虎 毛西平 |
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| 作者单位： | 1.浙江大学 软弱土与环境土工教育部重点实验室，杭州 310027；2.温州市民用建筑规划设计所，浙江 温州 325000； 3.温州东瓯建设集团公司，浙江 温州 325000 |
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| 基金项目： | 浙江省建设厅资助项目;浙江省温州市科技局资助项目;浙江省温州市软科学研究计划 |
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| 摘 要： | 刚-柔性桩复合地基中刚性桩的荷载传递规律及变形性状明显不同于自由状态下的单桩，由于复合地基中刚性桩、柔性桩、土的互相作用，桩的工作性状要复杂得多。为了比较两者的承载变形特性，在温州地区进行同根桩在不同状态下静荷载对比试验，在静荷载试验过程中同步检测桩身应力情况，结合测试数据对桩沉降特性、荷载传递机理、压缩量特性进行了分析，分析结果对工程设计施工有一定的借鉴价值。
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| 关 键 词： | 刚-柔性桩复合地基 静荷载试验 荷载传递机理 沉降 桩身压缩量 |
| 文章编号： | 1000-7598-（2007）11-2353-06 |
| 收稿时间： | 2005-11-10 |
| 修稿时间： | 2005-11-10 |
Study on characteristics comparison between rigid pile in composite foundation with rigid-flexible piles and that in free state |
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| ZHU Kui,XU Ri-qing,WU Dong-hu,MAO Xi-ping.Study on characteristics comparison between rigid pile in composite foundation with rigid-flexible piles and that in free state[J].Rock and Soil Mechanics,2007,28(11):2353-2358. |
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| Authors: | ZHU Kui XU Ri-qing WU Dong-hu MAO Xi-ping |
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| Institution: | 1. Zhejiang University, Key Laboratory of Soft Soils and Geoenvironmental Engineering, Ministry of Education, Hangzhou 310027 China;2.Wenzhou Civil Building Plan Design Institute, Wenzhou 325000, China; 3.Wenzhou Dongou Construction Group limited Company, Wenzhou 325000, China |
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| Abstract: | The load transfer mechanism and deformation characteristics of cast-in-place piles in composite foundation with rigid-flexible piles are different from that in free state.Working property of pile is complex due to interaction between rigid pile,flexible pile and soil.Static load tests of the same pile under different situation are carried out in Wenzhou.On the basis of monitoring data in the process of static load test,settlement characteristics,load transfer mechanism and compression of pile shaft are analyzed;the conclusions can benefit to engineering design and construction. |
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| Keywords: | composite foundation with rigid-flexible piles static load test load transfer mechanism settlement compression of pile shaft |
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