| 基于圆孔扩张理论的CFG桩成桩效应计算分析 |
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| 引用本文： | 唐彤芝,赵维炳.基于圆孔扩张理论的CFG桩成桩效应计算分析[J].水运工程,2005(4):17-21. |
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| 作者姓名： | 唐彤芝 赵维炳 |
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| 作者单位： | 南京水利科学研究院,江苏,南京,210029 |
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| 基金项目： | 2004年江苏省交通科技项目"CFG桩复合地基加固高速公路深厚软基技术研究" |
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| 摘 要： | 利用圆孔扩张理论对CFG 桩处理公路软粘土的成桩效应进行了理论分析,依据工程实例对沉管引起的桩间土超静孔压、地表隆起量及土体挤密性进行了计算。研究结果对深入理解CFG 桩沉管的“隔桩跳打”工艺,解释单桩沉管过程对相邻已打桩成桩质量的影响,以及复合地基桩间距的合理设计均具有理论和实用价值。
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| 关 键 词： | CFG桩 圆孔扩张理论 成桩效应 |
| 文章编号： | 1002-4972(2005)04-0017-05 |
| 修稿时间： | 2005年1月14日 |
Computational Analysis for Compaction Effect of CFG Pile Based on the Theory of Cavity Expansion |
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| TANG Tong-zhi,ZHAO Wei-bing.Computational Analysis for Compaction Effect of CFG Pile Based on the Theory of Cavity Expansion[J].Port & Waterway Engineering,2005(4):17-21. |
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| Authors: | TANG Tong-zhi ZHAO Wei-bing |
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| Abstract: | The compaction effect of CFG pile treating road soft soil is analyzed theoretically based on the theory of cavity expansion, and the excess pore water pressure, land upheaval and compaction characteristics due to installation of a pile in soil are computed according to a project instance. The research results are of great theoretical significance and practical value as well for profound understanding of the technique of "separate piling of neighboring piles"during CFG pile construction, explanation of influences on quality of constructed piles,and reasonable design of the pile space. |
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| Keywords: | CFG pile cavity expansion theory compaction effect |
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