| 土性高斯平稳场-马尔可夫场在渗流随机分析中的应用研究 |
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| 引用本文： | 林琳,史良胜,杨金忠,蔡树英.土性高斯平稳场-马尔可夫场在渗流随机分析中的应用研究[J].岩土力学,2006,27(10):1777-1780. |
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| 作者姓名： | 林琳 史良胜 杨金忠 蔡树英 |
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| 作者单位： | 武汉大学,水资源与水电工程科学国家重点实验室,武汉,430072 |
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| 摘 要： | 不同类别土之间的性质差异导致了土性空间变异性的增大，需要建立一种模型以更真实地反映变异产生机制。引入基于马尔可夫场的多元指示地质统计模型，推导了含多类土的土层特性参数统计特征的理论表达式，分析了多类土的存在对K—L（Karhunen—Loeve）展开的影响，应用谱模型对土层进行了渗流力学随机分析。模拟结果证实了高斯平稳场．马尔可夫场的正确性和谱模型的有效性。
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| 关 键 词： | 土性 高斯平稳场 马尔可夫场 随机分析 |
| 文章编号： | 1000-7598-（2006）10-1777-04 |
| 收稿时间： | 2005-06-07 |
| 修稿时间： | 2005-06-072005-09-26 |
Research on application of Gaussian stationary field-Markov field of soil property to stochastic fluid flow analysis |
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| LIN Lin,SHI Liang-sheng,YANG Jin-zhong,CAI Shu-ying.Research on application of Gaussian stationary field-Markov field of soil property to stochastic fluid flow analysis[J].Rock and Soil Mechanics,2006,27(10):1777-1780. |
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| Authors: | LIN Lin SHI Liang-sheng YANG Jin-zhong CAI Shu-ying |
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| Institution: | State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China |
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| Abstract: | The larger spatial variability of soil properties is due to the difference of soil properties for different soils. So it is necessary to establish a model to show the actual mechanism of the variability. The multi-indicator geology statistical model based on the Markov field is introduced. And the analytical expression for the statistics of the soil parameters is derived and the impact of multi-soil on K-L (Karhunen-Loeve) expansion is analyzed. Then the stochastic seepage simulation is conducted with spectral method. The results show the correctness of Gaussian stationary field-Markov field and the validity of spectral model. |
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| Keywords: | soil property Gauss stationary field Markov field stochastic analysis |
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