| 被动桩中土拱效应问题的数值分析 |
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| 引用本文： | 张建勋,陈福全,简洪钰.被动桩中土拱效应问题的数值分析[J].岩土力学,2004,25(2):174-178. |
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| 作者姓名： | 张建勋 陈福全 简洪钰 |
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| 作者单位： | 福建工程学院 土木工程系， 福建 福州 350007 |
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| 基金项目： | 福建省青年科技人才创新专项资金课题(No. 2002J015)。 |
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| 摘 要： | 被动桩对侧向位移的土层起到遮拦作用的机理主要是土拱效应。采用有限元软件Plaxis 8.1，详细地研究了被动桩中土拱效应的产生机理，分析了导致侧向位移的荷载大小、土体性质、群桩以及桩土接触面性质等影响因素对土拱效应性态和桩土应力分担比的影响，分析表明，桩间距是影响土拱效应的最主要因素。
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| 关 键 词： | 土拱效应 被动桩 有限元 数值分析 |
| 文章编号： | 1000-7598-(2004)02-0174-06 |
| 收稿时间： | 2003-04-29 |
Numerical analysis of soil arching effects in passive piles |
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| ZHANG Jian-xun,CHEN Fu-quan,JIAN Hong-yu.Numerical analysis of soil arching effects in passive piles[J].Rock and Soil Mechanics,2004,25(2):174-178. |
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| Authors: | ZHANG Jian-xun CHEN Fu-quan JIAN Hong-yu |
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| Institution: | Fujian University of Technology, Fuzhou 350007, China |
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| Abstract: | It has been well recognized for a long time that one of major mechanisms for stabilizing soil due to lateral movements by passive piles is soil arching effect, which is a phenomenon of transfer of stresses from a yielding mass of soil onto the adjoining stationary part of soil. The finite element analysis software package, Plaxis 8.1, is used to study soil arching effects in passive piles and the effects of factors on the behavior of soil arching effect such as soil properties, piles spacing ratio, interface of soil-pile and piles arrangement are discussed in detail. It is shown that the ratio of pile spacing to pile diameter is the most important factor affecting soil arching effect. |
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| Keywords: | soil arching effect passive pile finite element method numerical analysis |
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