| 关于土层相关距离计算方法的研究 |
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| 引用本文： | 闫澍旺,朱红霞,刘润,孙万禾. 关于土层相关距离计算方法的研究[J]. 岩土力学, 2007, 28(8): 1581-1586 |
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| 作者姓名： | 闫澍旺 朱红霞 刘润 孙万禾 |
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| 作者单位： | 1. 天津大学 建工学院，天津 300072；2. 天津港研所，天津 300222 |
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| 基金项目： | 国家自然科学基金;高等学校博士学科点专项科研项目 |
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| 摘 要： | 根据随机场理论，对求解土层相关距离的递推空间法和相关函数法进行比较和探讨，指出两种方法所求得的相关距离值存在偏差的原因，并从理论上证明当样本容量足够大时两种方法的计算结果可以得到统一。对相关函数法作出改进，使其更易于曲线的拟合和参数的确定，最后采用实际工程的勘察测试资料进行了分析计算，验证了由计算公式推导所得的结论在实际工程中也是成立的。
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| 关 键 词： | 随机场 相关距离 相关函数 方差折减函数 |
| 文章编号： | 1000-7598-（2007）08-1581-06 |
| 收稿时间： | 2005-09-01 |
| 修稿时间： | 2005-09-01 |
Study on methods for estimating correlation distance of soil layers |
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| YAN Shu-wang,ZHU Hong-xia,LIU Run,SUN Wan-he. Study on methods for estimating correlation distance of soil layers[J]. Rock and Soil Mechanics, 2007, 28(8): 1581-1586 |
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| Authors: | YAN Shu-wang ZHU Hong-xia LIU Run SUN Wan-he |
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| Affiliation: | 1. School of Civil Engineering, Tianjin University, Tianjin 300072, China; 2. Tianjin Port and Harbour Engineering Institute, Tianjin 300222, China |
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| Abstract: | The two different methods for estimating the correlation distance of soil layers are compared and studied based on the random field theory.The reason why difference correlation distances may be estimated by different methods is explained.The results obtained by using both methods respectively are proved to be approximately the same if the number of samples is large enough.The correlation function method is improved in order to make the curve fitting and parameters determination easily.The conclusion is validated through calculation of some investigation data of practical engineering. |
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| Keywords: | random field correlation distance correlation function reduction function of variance |
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