| CFG桩-砂石换填组合复合地基工程实践 |
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| 引用本文： | 刘海龙. CFG桩-砂石换填组合复合地基工程实践[J]. 建筑技术, 2014, 0(3): 240-243 |
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| 作者姓名： | 刘海龙 |
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| 作者单位： | 北京市机械施工有限公司,北京100045 |
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| 摘 要： | 北京市朝阳区某工程根据地基设计要求、地质条件和场地现状,采用先换填级配砂石再进行CFG桩处理的复合地基处理方法。施工完毕后通过级配砂石荷载试验、压实系数和复合地基荷载试验,证明这种复合地基承载力大幅提高,可有效控制地基变形且可降低工程造价。
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| 关 键 词： | CFG桩 砂石换填 复合地基 |
ENGINEERING PRACTICE OF CFG PILE AND GRADED SAND BACKFILLED COMPOSITE FOUNDATION |
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| LIU Hai-long. ENGINEERING PRACTICE OF CFG PILE AND GRADED SAND BACKFILLED COMPOSITE FOUNDATION[J]. Architecture Technology, 2014, 0(3): 240-243 |
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| Authors: | LIU Hai-long |
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| Affiliation: | LIU Hai-long (Beijing Mechanized Construction Co., Ltd., 100045, Beijing, China) |
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| Abstract: | According to the foundation design requirement, geological conditions and site conditions of a project in Chaoyang district of Beijing, graded sand is backfilled before construction of CFG pile. After construction, graded sand bearing test, compaction factor and composite foundation bearing test are carried out and it is proved that bearing capacity of the composite foundation is improved greatly, foundation deformation is effectively controlled and construction cost is also reduced. |
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| Keywords: | CFG pile backfilling of graded sand composite foundation |
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