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摘要：
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换填法地基处理设计关键是确定垫层的厚度。鉴于传统的设计方法存在不足,文章提出了一种改进的方法,经算例验证该法能更好地确定最佳垫层厚度,同时能适应不同的安全要求,具有较大的灵活性。
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The key to the designs of soil improvement with the method of replacement lies in the determination of the thickness of the bedding courses.In view of the defects in the traditional design methods,the paper presents a modified design method,which was verified by examples of calculations and proved that the presented method can not only be used to better determine the thickness of a bedding course but can also be adaptable to different safety requirements with greater adaptability.
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基金项目：
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作者简介：
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参考文献：
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[1]龚晓南.地基处理手册(第二版)[M].北京:中国建筑工业出版社,2000.
[2]JG J79-2002,建筑地基处理技术规范[S].
[3]GB50007-2002,建筑地基基础设计规范[S].
[4]张炳华,侯昶.土建结构优化设计[M].上海:同济大学出版社,1988.
[5]孙志忠.数值分析[M].南京:东南大学出版社,2002.
[6]王晓谋.高等级公路软土地基路堤设计与施工[M].北京:人民交通出版社.
[7]钱家欢.土力学[M].南京:河海大学出版社.
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