| 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,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 |
| 收稿时间： | 2012/3/25 0:00:00 |
| 修稿时间： | 2012/8/5 0:00:00 |
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(Drilling & Tunneling),2012,39(8):57-60. |
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| Authors: | LIU Lai-xin |
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| Institution: | LIU Lai-xin ( Bei- jing Aidi Geotechnical Investigation ＆ Foundation Engineering Company, Beijing 100144, China) |
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| Abstract: | CFG pile has many successful engineering cases in ground treatment of high buildings. Composite modulus meth- od 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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