| 载荷试验确定基床系数修正方法的讨论 |
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| 引用本文： | 李伟,高广运,邱畅. 载荷试验确定基床系数修正方法的讨论[J]. 上海国土资源, 2004, 0(4): 15-18 |
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| 作者姓名： | 李伟 高广运 邱畅 |
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| 作者单位： | 同济大学,地下建筑与工程系,上海,200092;同济大学,地下建筑与工程系,上海,200092;同济大学,地下建筑与工程系,上海,200092 |
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| 基金项目： | 高等学校博士点基金资助(No.2000024724)上海市重点学科资助 |
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| 摘 要： | Winkler地基模型是目前工程界应用最广的一种地基模型,但对其关键参数——基床系数k的确定,许多文献的表述并不一致。该文在大量试验资料的基础上,通过对该问题的深入研究,阐明了通过载荷试验确定基床系数修正方法的有关概念。对于砂性土地基,载荷板试验得出的基准基床系数仅需要进行基础大小修正,而对于粘性土地基,则需要进行基础大小和基础形状两项修正。
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| 关 键 词： | Winkler 地基模型 基床系数 载荷试验 |
| 修稿时间： | 2004-02-04 |
Discussion on Modifying Method of Coefficients of Subgrade Reaction Obtained from Load Bearing Test |
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| Li Wei Gao Guangyun Qiu Chang. Discussion on Modifying Method of Coefficients of Subgrade Reaction Obtained from Load Bearing Test[J]. Shanghai Land & Resource, 2004, 0(4): 15-18 |
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| Authors: | Li Wei Gao Guangyun Qiu Chang |
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| Abstract: | The Winkler foundation model is most widely used in the construction. According to many reference books, the method of obtaining the coefficients of subgrade reaction, ks, is not consistent. Based on the numerous experimental data, the problem is discussed thoroughly. The modified method of obtaining ks by load bearing test has been proposed here. For sandy soil foundation, ks, obtained by load bearing test should be modified concerning the scale of the foundation. For the clay foundation ks should be modified concerning the scale and the shape of the foundation. The result is valuable for obtaining the ks correctly and beneficial for the construction. |
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| Keywords: | Winkler foundation model coefficients of subgrade reaction load bearing test |
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