| 北京地区粘性土分类指标与力学指标关系回归分析 |
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| 引用本文： | 潘旭亮,张钦喜,杜修力,张在明.北京地区粘性土分类指标与力学指标关系回归分析[J].西北地震学报,2011,33(Z1). |
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| 作者姓名： | 潘旭亮 张钦喜 杜修力 张在明 |
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| 作者单位： | 1. 北京工业大学建筑工程学院,北京100022;北京市勘察设计研究院有限公司,北京100038
2. 北京工业大学建筑工程学院,北京,100022 |
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| 摘 要： | 通过统计北京地区7 602组粘性土土工试验数据,研究了粘土分类指标与力学指标各参数之间的相关关系,并给出了相应的一元、多元回归方程式和相关系数。分类指标回归分析结果表明:含水量与孔隙比、饱和度、液限和塑限指标相关性较好;液限与比重、孔隙比、塑限、塑性指数相关性较好;液性指数与饱和度、塑限与孔隙比、孔隙比与密度、饱和度与液性指数及塑性指数与比重相关性都较好。力学指标回归分析表明:压缩模量E2与E1相关性好;E2与E1、初始应力相关性好;E2与粘聚力、摩擦角、E1、初始应力、孔隙比相关性好;E2与E1、粘聚力、摩擦角相关性好。并不建议运用相关方程式确定指标,但对于资料欠缺的地区可以借鉴。
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| 关 键 词： | 北京地区 粘性土 分类指标 力学指标 回归分析 相关系数 |
Regression Analysis on Relationship between Sort and Physical Indexes of Clay in Beijing Area |
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| PAN Xu-liang,ZHANG Qin-xi,DU Xiu-li,ZHANG Zai-ming.Regression Analysis on Relationship between Sort and Physical Indexes of Clay in Beijing Area[J].Northwestern Seismological Journal,2011,33(Z1). |
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| Authors: | PAN Xu-liang ZHANG Qin-xi DU Xiu-li ZHANG Zai-ming |
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| Institution: | PAN Xu-liang 1,2,ZHANG Qin-xi 1,DU Xiu-li 1,ZHANG Zai-ming 1,2(1.College of Architecture and Civil Engineering,Beijing University of Technology,Beijing 100022 China,2.Beijing Engineering Consultants LTD,Beijing 100038 China) |
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| Abstract: | Based on the data of geotechnical engineering tests for 7 602 groups clay in Beijing,the correlativities among the sort indexes and physical indexes are studied,and the corresponding unitary-pluralistic regression equations and the relativity coefficients are given.Results of the sort index regression analysis show the follows:the correlativities among water content and void ratio,degree of saturation,liquid limit,plasticity index are relatively good.The correlativities among liquid limit and specific gravi... |
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| Keywords: | Beijing area Clay Sort index Physical index Regression analysis Correlativity coefficient |
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