| 一种改进的确定地基承载力的动参数法 |
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| 引用本文： | 刘明贵,张波. 一种改进的确定地基承载力的动参数法[J]. 岩土力学, 2006, 27(10): 1759-1762 |
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| 作者姓名： | 刘明贵 张波 |
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| 作者单位： | 中国科学院武汉岩土力学研究所，武汉 430071 |
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| 摘 要： | 动参数法包括频率法和频率-初速法已应用于检测各种地基和桩基的承载力。在用频率法检测地基承载力大小的基础上提出了一种改进的动参数法。首先，采用不同的压模面积，利用线性回归分析得到地基抗压刚度系数Cz和压模面积A的立方根的乘积值的大小，再计算了承压板面积为20 m2时的地基抗压刚度系数，最后通过相关规范得到地基承载力的大小。并与静力法测试结果相比较，发现其结果非常相似。
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| 关 键 词： | 改进 动参数法 频率法 压模面积 线性回归 |
| 文章编号： | 1000-7598-（2006）10-1759-04 |
| 收稿时间： | 2005-09-01 |
| 修稿时间： | 2005-09-012005-12-01 |
A meliorative method of dynamic parameter to determine bearing capacity of soil foundations |
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| LIU Ming-gui,ZHANG Bo. A meliorative method of dynamic parameter to determine bearing capacity of soil foundations[J]. Rock and Soil Mechanics, 2006, 27(10): 1759-1762 |
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| Authors: | LIU Ming-gui ZHANG Bo |
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| Affiliation: | Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China |
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| Abstract: | So far, the methods of dynamic parameters include method of frequency and method of frequency-muzzle velocity, which could apply to testing the bearing capacity of soil foundations and the pile foundations. Based on the method of frequency, a meliorative method of dynamic parameters is put forward. First, adopting different area of boards and using linear regression, the multiplying value of Cz (the rigidity coefficient of soil foundation) and A (the area of board)could be got. Then, the rigidity coefficient of soil foundation as the area of board of 20 m2 is got by computation. Finally, through correlative criterion, the value of bearing capacity could be got. |
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| Keywords: | melioration method of dynamic parameter method of frequency area of board linear regression |
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