| CFG桩复合地基压缩模量计算方法探讨 |
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| 引用本文： | 刘来新.CFG桩复合地基压缩模量计算方法探讨[J].探矿工程(岩土钻掘工程),2012,39(8):57-60. |
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| 作者姓名： | 刘来新 |
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| 作者单位： | 北京爱地地质勘察基础工程公司,北京100144 |
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| 摘 要： | CFG桩法在高层及多层建筑的地基处理中已有许多成功实例，在变形计算中，《建筑地基处理技术规范》（JGJ 79-2002）推荐使用复合模量法，并提供了计算复合土层压缩模量的应力比法公式。这里通过复合地基载荷试验资料，提出一种改进的面积比法公式。应用该法计算的复合地基沉降值，与建筑物的沉降观测值有较好的吻合度。
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| 关 键 词： | CFG桩复合地基 复合土层压缩模量 应力比法 面积比法 |
| 修稿时间： | 8/5/2012 12:00:00 AM |
Discussion on Calculation Method of Compression Modulus of CFG Pile Composite Foundation |
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| LIU Lai-xin.Discussion on Calculation Method of Compression Modulus of CFG Pile Composite Foundation[J].Exploration Engineering:Rock & Soil Drilling and Tunneling,2012,39(8):57-60. |
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| Authors: | LIU Lai-xin |
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| Affiliation: | Beijing Aidi Geotechnical Investigation & Foundation Engineering Company |
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| Abstract: | CFG pile has many successful engineering cases in ground treatment of high buildings.Composite modulus method is recommended by "Technical Code for Ground Treatment of Buildings" JGJ 79-2002 in deformation calculation with stress ratio method formula of composite earth layer compression modulus.In this paper,a modified formula of area ratio method is put forward based on the loading test data of composite foundation.The composite foundation settlement value calculated by this method has a good agreement with the building settlement observation value. |
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| Keywords: | CFG pile composite foundation compression modulus of composite earth layer stress ratio method area ratio method |
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