ON ESTIMATING THE HYDRAULIC-PROPERTIES OF SOIL .1. COMPARISON BETWEEN FORMS TO ESTIMATE THE SOIL-WATER CHARACTERISTIC FUNCTION

被引：17

作者：

ELKADI, AI ^{[1
]}

机构：

[1] BUTLER UNIV,HOLCOMB RES INST,INDIANAPOLIS,IN 46208

来源：

ADVANCES IN WATER RESOURCES | 1985年 / 8卷 / 03期

关键词：

FLOW OF WATER - Porous Materials - HYDRAULICS - Analysis - MATHEMATICAL MODELS;

D O I：

10.1016/0309-1708(85)90054-5

中图分类号：

TV21 [水资源调查与水利规划];

学科分类号：

081501 ;

摘要：

The hydraulic properties of soil include the soil-water characteristic function left bracket h( theta ), in which theta water content and h is pressure head (suction) right bracket , and the hydraulic conductivity function left bracket K( theta ) or K(h) right bracket . These functions are essential to the solution of unsaturated groundwater flow problems. A number of empirical and semiempirical forms have been proposed in the literature to estimate these functions. The present paper employs a nonlinear least-square analysis for comparison between some of the available forms, using a large number of experimental measurements of h( theta ) for different classes of soil. Suitability of the forms for predicting the hydraulic conductivity function is examined. The paper facilitates modeling by providing estimates for the parameters of the soil-water characteristic function.

引用

页码：136 / 147

页数：12

共 24 条

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[2]

BROOKS RH, 1964, 3 COL STAT U HYDR PA

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