Research on application of Karhunen-Loeve expansion to simulating anisotropic random field of soil property

被引：0

作者：

Shi Liang-sheng ^{[1
]}

Yang Jin-zhong ^{[1
]}

Chen Fu-long ^{[2
]}

Zhou Fa-chao ^{[1
]}

机构：

[1] Wuhan Univ, State Key Lab Water Resources & Hydropower Engn S, Wuhan 430072, Hubei, Peoples R China

[2] Shihezi Univ, Sch Irrigat & Architecture Engn, Shihezi 832000, Peoples R China

来源：

ROCK AND SOIL MECHANICS | 2007年 / 28卷 / 11期

关键词：

Karhunen-Loeve expansion; random field; covariance function; anisotropy;

D O I：

暂无

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

The application of Karhunen-Loeve (KL) expansion to simulating the soil parameters random field is researched; and the characteristics of the KL decomposition are analyzed; and the Galerkin finite element method is adopted to solve the integral equation numerically in the irregular region and for arbitrary covariance function and to simulate the anisotropic conductivity field. It is shown that the KL expansion of lower truncated terms can duplicate the spatial structure of the random field accurately. The KL expansion method is superior to turning band method in simulating the anisotropy of a random field; and it has better convergence than the spectral representation method.

引用

页码：2303 / 2308

页数：6

共 10 条

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