| 边坡桩基受力特性的离心模型试验 |
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| 引用本文： | 郭永建,谢永利,江黎,刘保健.边坡桩基受力特性的离心模型试验[J].长安大学学报(自然科学版),2010(1). |
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| 作者姓名： | 郭永建 谢永利 江黎 刘保健 |
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| 作者单位： | 长安大学特殊地区公路工程教育部重点实验室;西安公路研究院; |
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| 基金项目： | 国家西部交通建设科技项目(200131881259) |
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| 摘 要： | 鉴于采用常规试验方法对临空面的边坡桩基较难进行分析,利用基于相似理论的土工离心试验机,通过缩小原型尺寸的方式对其进行研究。在土工离心试验中,采用自制的加载系统分别对端承桩与摩擦桩这2种不同形式的桩基施加水平荷载和竖向荷载,给出边坡桩基受力性能的研究方法,并进行了受力机理分析。试验结果表明:边坡桩基受较小的水平荷载时,2种桩基形式受力性能相差不大;摩擦桩在承受竖向荷载时承载性能较差,对桩周土体扰动较大,不宜作为边坡桩基的形式。
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| 关 键 词： | 道路工程 离心试验 边坡桩基 受力特性 水平荷载 竖向荷载 |
Centrifugal model test on mechanic features of pile foundation at slope |
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| GUO Yong-jian,XIE Yong-li,JIANG li,LIU Bao-jian.Centrifugal model test on mechanic features of pile foundation at slope[J].JOurnal of Chang’an University:Natural Science Edition,2010(1). |
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| Authors: | GUO Yong-jian XIE Yong-li JIANG li LIU Bao-jian |
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| Institution: | GUO Yong-jian1,XIE Yong-li1,JIANG li2,LIU Bao-jian1(1.Key Laboratory for Special Area Highway Engineering of Ministry of Education,Chang\'an University,Xi\'an 710064,Shaanxi,China,2.Xi\'an Research Institute of Highway,Xi\'an 710054,China) |
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| Abstract: | It is very difficult to study the pile foundation in slope by the traditional method because there exists free surface in it.By employing the geotechnical centrifuge based on the theory of similarity,the pile foundation is studied by reducing the dimensions of the prototype.In the centrifugal tests,the horizontal and vertical loads are exerted on end-bearing pile and friction pile respectively by the loading devices developed by the authors.The research methods and mechanic mechanism are presented.The test ... |
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| Keywords: | road engineering centrifugal model test pile foundation in slope mechanic feature horizontal load vertical load |
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