| 桩网复合地基桩身受力特性模型试验 |
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| 引用本文： | 龙秀均.桩网复合地基桩身受力特性模型试验[J].广东公路交通,2012(3):120-123. |
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| 作者姓名： | 龙秀均 |
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| 作者单位： | 中铁第四勘察设计院集团有限公司,武汉,430063 |
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| 摘 要： | 以某沿海铁路软土地基处理工程为依托,对桩网复合地基桩身受力特性进行了室内模型试验,得出了桩身轴力随着路堤填土荷载的增加而增大,随着桩间距的加大,桩身中性点下移;桩土应力比随着路堤填土荷载的增加而增大,随着桩间距加大明显增大等结论,为工程设计提供了理论参考依据。
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| 关 键 词： | 桩网复合地基 模型试验 桩身轴力 桩土应力比 |
Mechanical Characteristics Model Test for Geogrid-reinforced and Pile-supported Composite Foundation |
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| LONG Xiu-jun.Mechanical Characteristics Model Test for Geogrid-reinforced and Pile-supported Composite Foundation[J].Guangdong Highway Communications,2012(3):120-123. |
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| Authors: | LONG Xiu-jun |
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| Institution: | LONG Xiu-jun(China Railway SIYUAN Survey and Design Group Co.,Ltd.,Wuhan 430063,China) |
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| Abstract: | In this paper, based on a coastal railway soft soil treatment project, indoors model test for mechanical characteristics of geogrid-reinforced and pile-supported embankment has been studied. The following conclusions have been drawn ： axial force rises following increase of embankment load, neutral point of piles drops as pile spacing increasing, pile-soil stress ratio rises as increase of embankment load and increases obviously as pile spacing increasing etc. , which could provide theoretical references for engineering design. |
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| Keywords: | geogrid-reinforced and pile-supported composite foundation model test axial force pile- soil stress ratio |
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