不同干密度砾石土的土-水特征曲线规律及拟合分析 |
| |
引用本文: | 黄靖,等.不同干密度砾石土的土-水特征曲线规律及拟合分析[J].价值工程,2014(24):67-69. |
| |
作者姓名: | 黄靖 |
| |
作者单位: | [1]昆明理工大学津桥学院,昆明650106; [2]四川大学水利水电学院,成都610065 |
| |
基金项目: | 云南省教育厅科学研究基金项目(2013Y081). |
| |
摘 要: | 利用SWC-150 Fredlund土-水特征曲线压力仪,对不同干密度的砾石土进行土-水特征试验,探讨不同干密度下土-水特征曲线(SWCC)的变化规律;采用四种不同的拟合方程对试验所得的土-水特征曲线通过最小二乘法进行拟合,获得了拟合参数及残差平方和。通过残差平方和剂曲线形状对比,Fredlund&Xing四参数方程的拟合效果最好。
|
关 键 词: | 土-水特征曲线 干密度 试验 拟合 |
Rule and Fitting Analysis of Different Dry Density on Soil-Water Characteristic Curve of Gravelly Clayey Soil |
| |
Institution: | HUANG Jing, LUO Qi-xun ( 1.Oxbridge College, Kunming University of Science and Technology, Kunming 650106, China ; 2.College of Water Resource and Hydropower, Sichuan University, Chengdu 610065 , China ) |
| |
Abstract: | SWC-150 Fredlund Soil-Water Characteristic Cell is used to test the soil-water characteristic curve (SWCC) of gravelly clayey soils with different densities to discuss the change rule of SWCC. Using least-square method, SWCC is fitted by four fitting tri-parameter model, the parameters and residual sum of squares of the model are discussed. Through the residual sum of squares and curve shapes, the fitting effect of Fredlund&Xing four parameter equation is best. |
| |
Keywords: | soil-water characteristic curve dry density test fitting |
本文献已被 CNKI 维普 等数据库收录! |
|