摘要
以辽南营口地区软土为研究对象,进行室内三轴剪切流变实验,揭示出该种土具有明显的非线性流变特性,并采用半经验半理论的方法,建立了能够描述非线性流变的本构关系模型。最后,将流变本构模型应用于工程实践,采用MSC.Marc有限元分析软件计算出土体随时间的沉降变形规律,对软土路基的沉降进行预测。
Taking soft soil in Liaonan Yingkou Area as object of study,the triaxial shearing rheologic test has been conducted in lab, revealing that this kind of soil possesses distinct non - linear rheolgic attribute, and there has been established the model which is enabled to describe the non -linear rheelogic constitutive relations. Finally ,the rbeologic constitutive model has gotten application to practical project, and due to adopting the softwares MSC and Marc for finite element analysis there has been calculated the law that soil body settles and deforms as time going on, predicting the settlement of soft soil foundation.
出处
《北方交通》
2007年第4期54-57,共4页
Northern Communications
关键词
流变
非线性
本构模型
路基沉降
Rheology Nonlinearity Constitutive model Settlement of Subgrade
