地震工程学报Issue(2)：481-486,6.DOI:10.3969/j.issn.1000-0844.2015.02.0481
循环荷载下堆积体残余变形特性
Residual Deformation Behavior of Deposits under Cyclic Loading
摘要
Abstract
Residual deformation behaviors of deposits under cyclic loading at different stress levels and cyclic loading amplitudes are studied by a large-scale dynamic triaxial test.The residual de-formation of the deposits under different initial conditions is also discussed.Residual strains under cyclic loading are found to show a linear relationship with lg(1 +N )when N is less than 30. Shen’s empirical equation is suitable for calculating the residual strain of deposits under cyclic loading.The initial conditions have a significant effect on the residual strain of deposits.Residual shear strain is the largest under undrained conditions,medium under drained conditions,and smal-lest under air dried drainage conditions.When the residual deformation of the deposit under cyclic loading is calculated using Shen ’s equation,the equation’s parameters should match the actual engineering conditions.关键词
堆积体/大型动三轴试验/残余变形/初始条件Key words
deposit/large-scale dynamic triaxial test/residual deformation/initial condition分类
建筑与水利引用本文复制引用
孙志亮,孔令伟,郭爱国,田海..循环荷载下堆积体残余变形特性[J].地震工程学报,2015,(2):481-486,6.基金项目
国家自然科学基金项目(41372314) （41372314）
中国科学院重点部署项目(KZZD-EW-05) （KZZD-EW-05）
