微型钢管排桩支挡结构原型试验研究

向波; 马建林; 何云勇; 周立荣

微型钢管排桩支挡结构原型试验研究 English Version

向波^{1, 2},
马建林¹,
何云勇²,
周立荣¹

1. 西南交通大学土木工程学院,四川成都 610031; 2. 四川省交通运输厅公路规划勘察设计研究院,四川成都 610041

详细信息

作者简介:
向波(1973- )，男，四川自贡人，博士研究生，高级工程师，主要从事岩土工程方面的勘察设计与研究工作。E-mail: xiangbo215@sina.com。

中图分类号: TU413.4
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出版历程
- 收稿日期: 2013-02-21
- 发布日期: 2013-11-19

Prototype tests on micro-steel pipe piles as retaining structures

1. School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China; 2. Sichuan Provincial Transport Department Highway Planning, Survey, Design and Research Institute, Chengdu 610041, China

摘要

摘要: 由于微型钢管排桩缺乏系统试验研究,严重制约了该新型结构的推广应用。通过3组不同组合的钢管排桩原型结构堆载试验,获取了加载至极限破坏过程的桩土变形、桩身应变、土压力等实测数据,总结了该支挡结构受力、变形规律,分析了钢管桩排数、排距、间距对承载能力的影响特征,得到了推力作用下各排桩承受土压力比值。试验成果为微型钢管排桩的理论分析和工程应用提供了较系统的基础资料。
- 微型钢管排桩 /
- 原型试验 /
- 变形 /
- 弯矩 /
- 土压力
Abstract: The application of micro-steel pipe piles as a new retaining structure is seriously restricted for the lack of systematic studies. Through the surcharge load tests on three kinds of different prototype structures, the data such as pile-soil deformation, pile strain and earth pressure are measured from the loading to the ultimate failure. Based on this, the stress and deformation laws of the retaining structures are summarized, the effects of the row number, distance between two rows and pile spacing on the bearing capacity are analyzed, and the earth pressure ratios of bearing thrust of each row of piles are obtained. The conclusions provide more systematic basic data for the theoretical analysis and engineering applications of micro-steel pipe piles as retaining structures.
- micro-steel pipe pile /
- prototype test /
- deformation /
- bending moment /
- earth pressure

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参考文献(13)

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