人民长江2016，Vol.47Issue(19)：92-95,4.DOI:10.16232/j.cnki.1001-4179.2016.19.018
原状黄土土水特征曲线拟合方法研究
Study on soil-water characteristics curve fitting for undisturbed loess soil
摘要
Abstract
In order to explore the fitting approach for SWCC of undisturbed loess, the SWCC of loess soil samples in Baoji, Qishan and Yangling were fitted through 5 conventional fitting methods, and also results of indoor dehumidification experiment of matric suction pressure plate were compared with the fitting data. The results show that Fredlund & Xing, van Genuchten and Brooks&Corey fitting methods can better reflect undisturbed loess SWCC, while van Genuchten&Burdine ( VGB) and van Ge-nuchten &Mualem ( VBM) are not suitable for describing undistributed loess SWCC as their residual moisture contents are differ-ent from practical condition. Finally, a simple and practical engineering SWCC prediction formula was proposed and verified by tests.关键词
土水特征曲线/拟合模型/非饱和土/原状黄土Key words
SWCC/fitting model/unsaturated soil/undisturbed loess分类
天文与地球科学引用本文复制引用
郭鸿,陈茜,陈栋梁,李军..原状黄土土水特征曲线拟合方法研究[J].人民长江,2016,47(19):92-95,4.基金项目
陕西省教育厅专项科研计划项目(15JK1117) （15JK1117）
