摘要
通过研究伊犁黄土含水率变化对变形、剪切特性的作用效应,揭示含水率的变化对伊犁黄土变形、剪切性能作用规律,对今后伊犁建设工程具有一定的指导意义。试验采用新疆伊犁地区重塑黄土、原状黄土作为研究对象,制备不同含水率条件下的黄土试样,对其进行压缩试验和直剪试验,分析含水率变化对伊犁黄土变形及抗剪强度指标的影响。随着含水率的增大,相同垂直压力条件下伊犁黄土的孔隙比逐渐减小,压缩模量逐渐减小;而伊犁黄土抗剪强度逐渐减小,抗剪强度指标中凝聚力逐渐减小,内摩擦角变化不大。
This study investigates the deformation and shearing characteristics of Ili loess by changing moisture content to offering a guiding significance to the construction project in the future. The remolded loess and original loess with different moisture content are prepared with loess in Ili,Xinjiang. The compression test and direct shear test are conducted to study deformation characteristics and shear strength indexes of loess with different moisture content. With the increase in moisture content,the void ratio of the loess of the Ili gradually decreases with the same vertical pressure condition,and the compression modulus decreases gradually. While the shear strength of the loess in Ili decreases gradually,the cohesion of the shear strength index decreases gradually,and the internal friction angle changes little.
作者
莫腾飞
郭敏霞
娄宗科
郜颖超
MO Teng-fei;GUO Min-xia;LOU Zong-ke;GAO Ying-chao(College of Water Resources and Architectural Engineering, Northwest Agricultural and Forestry University, Yangling 712100, Shaanxi Province, China)
出处
《中国农村水利水电》
北大核心
2018年第4期87-90,94,共5页
China Rural Water and Hydropower
基金
"十三五"国家重点研发计划项目(2016YFC0400203)
国家自然科学基金项目(51279171
51379220)
关键词
含水率
压缩模量
凝聚力
内摩擦角
moisture content
compression modulus
cohesion
internal frictional angle
