| 路堤荷载下CFG桩复合地基加固区沉降计算 |
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| 引用本文： | 梁伟,谢上飞,邓建义.路堤荷载下CFG桩复合地基加固区沉降计算[J].中南公路工程,2012(4):221-223,227. |
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| 作者姓名： | 梁伟 谢上飞 邓建义 |
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| 作者单位： | [1]铁道第三勘察设计院集团有限公司,天津300251 [2]湖南省交通科学研究院,湖南长沙410015 |
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| 摘 要： | 在前人研究的基础上，通过对现有位移模式的改进，建立了考虑桩土相对滑移因素的CFG桩复合地基位移模式。通过对桩身及桩间土体的应力分析，联立相应的边界条件，进而得到了路堤荷载下CFG桩复合地基加固区沉降计算方法。最后，以某实际工程当中的复合地基为例，计算得到路堤荷载作用下该复合地基加固区沉降量，经对比分析表明：本文计算方法合理可靠，可以为实际工程提供参考。
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| 关 键 词： | 复合地基 CFG桩 沉降计算 路堤荷载 弹性模量 |
The Settlement Computation Composite Foundation of Reinforced Filed in CFG-Pile under Embankment Load |
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| LIANG Wei,XIE Shangfei,DENG Jianyi.The Settlement Computation Composite Foundation of Reinforced Filed in CFG-Pile under Embankment Load[J].Central South Highway Engineering,2012(4):221-223,227. |
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| Authors: | LIANG Wei XIE Shangfei DENG Jianyi |
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| Institution: | 1. The third railway survey and design institute group corporation, Tianjing, 300251, China; 2. Hu- nan communications research institute, Changsha Hunan, 410015, China) |
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| Abstract: | On the basis of previous studies, through the improvement of existing displacement mode, the displacement mode of the CFG pile composite foundation is established, which considers the relative slipping of piles. Through the stress analysis of pile shafts and soil between the piles, as well as relative boundary conditions, gained the computing method of sedimentation of the CFG pile composite foundation in reinforced area, which is under embankment load. At last, taking the composite foundation in a certain project as a example, calculated the sedimentation of the composite foundation in Reinforced area, which is under embankment load. Through contrast and analysis, can conclude that the calculation method in this paper is reasonable and reliable, and can provide a reference for practical engineering. |
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| Keywords: | composite foundation CFG piles settlement calculation embankment load modu-lus of elasticity |
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