| 钻孔灌注桩桩端后注浆承载性能数值分析 |
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| 引用本文： | 宋建,于志华,刘炎炎.钻孔灌注桩桩端后注浆承载性能数值分析[J].施工技术,2012,41(5):92-94. |
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| 作者姓名： | 宋建 于志华 刘炎炎 |
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| 作者单位： | 东北大学资源与土木工程学院,辽宁沈阳,110004 |
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| 基金项目： | 中央高校基本科研基金(N090401008);辽宁省自然科学基金项目(20092011);教育部留学人员回国科学研究基金(20071108—3) |
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| 摘 要： | 借助于有限差分软件FLAC3D来模拟后注浆对桩端承载性能产生的影响,通过建立不同的数值模型,分析在不同桩长、不同注浆量的条件下桩端后注浆对钻孔灌注桩承载力产生的影响。并对沈阳夏宫城市广场试验桩的模拟结果与现场静载试验结果进行对比。研究结果表明,桩长和单桩注浆量对桩端后注浆钻孔灌注桩的承载力影响最为显著。
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| 关 键 词： | 桩基础 钻孔灌注桩 后注浆 模拟 沉降 |
Numerical Analysis on Load-carrying Properties of Post-grouting Technology of Bored Pile |
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| Song Jian
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Yu Zhihua
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Liu Yanyan.Numerical Analysis on Load-carrying Properties of Post-grouting Technology of Bored Pile[J].Construction Technology,2012,41(5):92-94. |
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| Authors: | Song Jian Yu Zhihua Liu Yanyan |
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| Affiliation: | (School of Resources & Civil Engineering,Northeastern University,Shenyang,Liaoning 110004,China) |
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| Abstract: | Utilizing FLAC3D finite element software,the authors simulate the influence of bearing capacity of pile,analyze the influence of bearing capacity of post-grouting under the different pile lengths and grouting quantities by establishing the numerical models of bored piles end post-grouting.Lastly,the simulation results of test piles in Shenyang Xiagong City Square engineering and field static load test results are compared.Research results show that the main factors effected on bearing capacity of bored pile with post-grouting are lengths and grouting volume. |
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| Keywords: | pile foundations bored piles post-grouting simulation settlement |
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