太原理工大学学报Issue(1)：81-84,4.DOI:10.16355/j.cnki.issn1007-9432tyut.2015.01.016
利用 MATLAB 拟合压实黄土土水特征曲线的研究
Study of Fitting Soil_water Characteristic Curves for Compacted Loess by MATLAB
摘要
Abstract
Three functions in MATLAB ,i .e .lsqcurvefit ,nlinfit and fminunc ,were used to find a con_venient and accurate way to fit soil_water charactieristic curve(SWCC) of compacted loess ,by using van Genuchten model and Gardner model separately .The fitting data of volumetric water content and matrix suction were obtained by one dimensional infiltration test of compacted loess .The analysis on fitting effects shows that the fitting result of Gardner model by fminunc function is the best among the methods used in this study .Finally ,the data from a parallel test were used to verify the fitting formulae .The er_rors between calculated and measured data are less than 10% ,which further verifies that Gardner model fitting SWCC of compacted loess by using fminunc of MATLAB is convenient ,stable and accurate .关键词
压实黄土/土水特征曲线/MATLAB/拟合Key words
Compacted loess/SWCC/MATLAB/Fitting分类
建筑与水利引用本文复制引用
许淑珍,白晓红,马富丽..利用 MATLAB 拟合压实黄土土水特征曲线的研究[J].太原理工大学学报,2015,(1):81-84,4.基金项目
国家自然科学基金资助项目压实黄土的工程力学特性及微观结构研究（51178287）；黄土地区公路建设与养护技术交通行业重点实验室开放题（KLTLR_Y12_1）；山西省自然科学基金资助项目 （）
