| 相关函数法求解土性参数相关距离 |
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| 引用本文： | 张 梅,孙即超,李 健.相关函数法求解土性参数相关距离[J].岩土力学,2006,27(Z2):229-232. |
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| 作者姓名： | 张 梅 孙即超 李 健 |
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| 作者单位： | 1. 河北农业大学 城乡建设学院，保定 071000；2. 中国矿业大学（北京）力学与建筑工程学院，北京 100083；
3. 华北电力大学 电子通讯系，保定 071000 |
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| 基金项目： | 河北农业大学非生命学科和新兴学科科研发展基金资助项目。 |
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| 摘 要： | 介绍了相关距离在岩土工程应用中的实际物理意义，探讨了相关函数法计算相关距离的基本思路、标准相关函数型式的选择标准以及一些典型土层的标准相关函数类型。计算中发现,当土性参数的标准相关函数符合指数函数,尤其是单指数时，相关函数法能较合理地确定相关距离值。通过大量计算，得出了石家庄市桥东区3种典型土层的相关距离的分布范围，对于指导岩土工程勘测中的钻孔布置和取样间距具有一定的实际应用价值。同时得到相关距离具有区域性的特点，分区域研究具有重要的实际意义。
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| 关 键 词： | 土性参数 方差函数 相关函数 相关距离 |
| 收稿时间： | 2006-07-27 |
Calculation of correlation distance of soil properties by correlation function |
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| ZHANG Mei,SUN Ji-chao,LI Jian.Calculation of correlation distance of soil properties by correlation function[J].Rock and Soil Mechanics,2006,27(Z2):229-232. |
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| Authors: | ZHANG Mei SUN Ji-chao LI Jian |
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| Institution: | 1.College of Urban and Rural Construction, Agriculture University of Hebei, Baoding 071000, China; 2. College of Mechanics and Civil Engineering, China University of Mining and Technology, Beijing 100083, China; 3. College of Electric and Communication, North China Electric Power University, Baoding 071000, China |
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| Abstract: | The characteristics of correlation distance of soil properties applied to geotechnical engineering are studied. And the basic method to calculate the correlation distance by correlation function is presented. The choosing criterions of standard correlation function are also discussed. It can be drawn that the value of correlation distance calculated by correlation function is reasonable when the standard correlation function is exponential function, especially single exponential function. At last, the paper provides the correlation distance of three representative soil layers in Shijiazhuang bridge east district, which will be useful for borehole distribution and sampling distance. |
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| Keywords: | soil properties variance function correlation function correlation distance |
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