| 桩侧土的桩-土临界位移实验研究 |
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| 引用本文： | 张亦静,姜立新,肖宏彬,张春顺.桩侧土的桩-土临界位移实验研究[J].铁道科学与工程学报,2006,3(4):50-53. |
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| 作者姓名： | 张亦静 姜立新 肖宏彬 张春顺 |
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| 作者单位： | 湖南工业大学,岩土工程研究所,湖南,株洲,412008 |
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| 基金项目： | 国家自然科学基金资助项目(50378097)，湖南省自然科学基金资助项目(01JJY3043) |
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| 摘 要： | 通过室内直剪摩擦试验、室内模型试验、深井荷载试验和桩基静载试验,研究了各类桩的临界位移的规律及其影响因素。研究结果表明,桩侧摩阻力达到极限值所需要的临界位移较桩身沉降而言是很小的,因此,合理地选择桩土荷载传递模型,正确认识桩的荷载传递机理是进行桩基优化设计的前提。本实验研究为桩的荷载传递分析提供了理论根据。
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| 关 键 词： | 直剪摩擦试验 大直径桩 桩侧阻力 荷载传递 |
| 文章编号： | 1672-7029(2006)04-0050-04 |
| 修稿时间： | 2006年3月10日 |
Experimental study on the critical displacement for pile foundation |
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| ZHANG Yi-jing,JIANG Li-xin,XIAO Hong-bin,ZHANG Chun-shun.Experimental study on the critical displacement for pile foundation[J].Journal of Railway Science and Engineering,2006,3(4):50-53. |
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| Authors: | ZHANG Yi-jing JIANG Li-xin XIAO Hong-bin ZHANG Chun-shun |
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| Abstract: | Systematical analyses of rules as well as their responding effective aspects of critical displacements for various piles were made by direct shear friction test,model test in room,deep well load test and static load test of pile.The results show that the critical displacement related to the ultimate friction resistance is very small compared with the settlement of pile,therefore properly choosing load-transferring model for pile-soil as well as correctly understanding rules of load-transfer are the basis for optimizing the design of pile foundation.The paper provides the credible theoretical basis for the load-transferring analysis. |
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| Keywords: | direct shear friction test large-diameter pile lateral resistance load transfer |
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