| 强夯后填土CFG桩复合地基现场试验分析 |
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| 引用本文： | 吴旭君,殷琨. 强夯后填土CFG桩复合地基现场试验分析[J]. 探矿工程(岩土钻掘工程), 2008, 35(2): 31-33 |
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| 作者姓名： | 吴旭君 殷琨 |
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| 作者单位： | 1. 吉林大学建设工程学院,吉林,长春,130061;中冶集团建筑研究总院深圳分院,广东,深圳,518054
2. 中冶集团建筑研究总院深圳分院,广东,深圳,518054 |
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| 摘 要： | 在多种地基处理和桩基础工法的综合比较基础上,修建于某大面积填土上的新区拟采用强夯后填土 CFG桩复合地基。经理论分析计算,初步确定了CFG桩单桩和复合地基的承载力及桩的几何参数。按初步确定的参数在现场进行了试验性施工并实测了单桩和复合地基的承载力及桩、土应力比的变化规律。现场试验表明,实际测得的指标大于理论值,初步确定的参数可满足设计要求。
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| 关 键 词： | 强夯加固 CFG桩复合地基 承载力特征值 桩土应力比 |
| 文章编号： | 1672-7428(2008)02-0031-03 |
| 修稿时间： | 2007-10-02 |
Analysis on Field Test Results of CFG Pile Composite Foundation in the Reinforced Backfill Soil with Dynamic Compaction |
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| WU Xu-jun,YIN Kun. Analysis on Field Test Results of CFG Pile Composite Foundation in the Reinforced Backfill Soil with Dynamic Compaction[J]. Exploration Engineering （Rock & Soil Drilling and Tunneling）, 2008, 35(2): 31-33 |
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| Authors: | WU Xu-jun YIN Kun |
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| Abstract: | Based on the comprehensive comparison of various methods of ground treatment and pile foundation,the CFG pile composite foundation in the reinforced backfill soil with dynamic compaction was selected in a new urban district building.The geometric parameters of CFG piles as well as the bearing capacity of single CFG pile and composite foundation were determined by theoretical analysis and calculation.With the preliminarily determined parameters,the experimental construction was performed on site.In addition,the changing laws of pile-soil stress ratio as well as the bearing capacity of single CFG pile and composite foundation were measured.The field test showed that the measured indexes were larger than their theoretical values,and the preliminarily determined parameters were adequate to the design requirements. |
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| Keywords: | dynamic compaction reinforcement CFG pile composite foundation characteristic value of bearing capacity pile-soil stress ratio |
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