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原状黄土的土-水特征曲线试验研究与曲线拟合

发表时间:2017-10-31  浏览量:1093  下载量:237
全部作者: 郭文元,罗刚,杨文伟
作者单位: 兰州大学土木工程与力学学院
摘 要: 在压力膜仪法试验的基础上,研究甘肃省与青海省交界地区不同深度处原状黄土的土-水特征曲线。采用Williams模型对试验所得土-水特征曲线进行拟合。通过试验数据拟合发现,体积含水量和基质吸力之间存在对数函数关系,且不同深度处的原状黄土因干密度不同,拟合曲线的参数不同。
关 键 词: 建筑材料;原状黄土;土-水特征曲线;模型拟合
Title: Experimental study and fitting of soil-water characteristic curve of original loess
Author: GUO Wenyuan, LUO Gang, YANG Wenwei
Organization: College of Civil Engineering and Mechanics, Lanzhou University
Abstract: Based on the study of pressure film method, this paper studies the soil-water characteristic curve of undisturbed loess at different depths in Gansu and Qinghai provinces. The paper uses the Williams model to fit the soil-water characteristic curve. The fitting of the experimental data shows that there is a logarithmic function between the volume moisture content and the matrix suction. And the parameters of the fitting curve are different because the original loess at different depths has different dry densities.
Key words: building materials; original loess; soil-water characteristic curve; model fitting
发表期数: 2017年10月第20期
引用格式: 郭文元,罗刚,杨文伟. 原状黄土的土-水特征曲线试验研究与曲线拟合[J]. 中国科技论文在线精品论文,2017,10(20):2301-2305.
 
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