摘要
土水特征曲线(soil-water characteristic curve,SWCC)的测定是岩土工程中的渗流分析和土壤的平衡状态下湿度(含水率)预估的重要环节,也是岩土数值模拟分析的关键性输入。考虑季冻区的气候状况,对0、1、3、5次冻融循环后的油页岩废渣粉煤灰改良土路基填料(MC)及粉质黏土(SC)进行了不同含水率下的基质吸力测量,对冻融前后两种填料的SWCC进行了系统分析和比较,并对两种填料在吉林地区平衡湿度范围提出预测,可为实际工程提供参考。
The determination of soil-water characteristic curve(SWCC)is an important task of seepage analysis and soil moisture prediction under equilibrium state in geotechnical engineering,and a key input of numerical simulation analysis of geotechnical engineering.Considering the climatic conditions of a seasonal freezing area in Changchun City,NE China,the matric suction of the subgrade filler and the silty-clay modified with oil shale residue and fly ash after 0,1,3,and 5 cycles of freeze-thaw were measured in different moisture contents.The SWCCs of the two fillers before and after freeze-thaw were analyzed and compared,and the balance humidity range of the two fillers in the study area was predicted.The results can be used in practice as a reference.
作者
魏海斌
栾晓寒
韩雷雷
WEI Hai-bin;LUAN Xiao-han;HAN Lei-lei(College of Transportation,Jilin University,Changchun 130022,China)
出处
《科学技术与工程》
北大核心
2020年第2期809-813,共5页
Science Technology and Engineering
基金
国家自然科学基金(51578263)。
