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| 地基承载力经验公式的变异性分析 | |
| 引用本文： | 程强,罗书学,黄绍槟.地基承载力经验公式的变异性分析[J].岩土力学,2005,26(3):423-426. |
| 作者姓名： | 程强 罗书学 黄绍槟 |
| 作者单位： | 1. 四川省交通厅,公路规划勘察设计研究院,四川,成都610041;西南交通大学,土木工程学院,四川,成都610031 2. 西南交通大学,土木工程学院,四川,成都610031 3. 四川省交通厅,公路规划勘察设计研究院,四川,成都610041 |
| 摘 要： | 应用随机场理论，研究了地基承载力表、CPT等地基承载力经验公式的变异性分析方法，提出经验公式确定地基承载力的变异性是由经验公式本身的不确定性和土性参数的不确定性组成，提出了考虑土性参数自相关性的地基承载力经验公式的变异性分析方法，通过对编制CPT确定地基承载力经验公式资料的计算分析，得出CPT确定地基承载力的变异系数在0．1～0．135之间。 |
| 关 键 词： | 土性参数 自相关 经验公式 静力触探 地基承载力 变异性 |
| 文章编号： | 1000-7598-(2005)03-0423-04 |
| 收稿时间： | 2004-03-22 |
| 修稿时间： | 2004年3月22日 |
Analysis of variability of empirical formulas for foundation bearing capacities |
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| Cheng Qiang,LUO Shu-xue,HUANG Shao-bin.Analysis of variability of empirical formulas for foundation bearing capacities[J].Rock and Soil Mechanics,2005,26(3):423-426. | |
| Authors: | Cheng Qiang LUO Shu-xue HUANG Shao-bin |
| Institution: | 1.Planning, Survey and Design Research Institute of Highways, Sichuan Provincial Communication Department, Chengdu 610041, China; 2.School of Civil Engineering, Southwest Jiaotong University , Chengdu 610031, China |
| Abstract: | Using random field theory, a method for analyzing variability of empirical formulas for foundation bearing capacity, such as foundation bearing capacity table and CPT, is studied. And it is pointed out that the variability of foundation bearing capacity is constituted by the variability of empirical formula oneself and variability of soil parameters. We put forward an analysis method of foundation bearing capacity variability determined by empirical formula with considering self-correlation properties of soil parameters. By the analysis and calculation of the data which workout the empirical formula, the variation coefficient is obtained, which is 0.1-0.135 . |
| Keywords: | soil parameter self-correlation empirical formula cone penetration test foundation bearing capacity variability |
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