【摘要】 通过对饱和重塑黄土进行了一系列动三轴试验,分析了在振动液化过程中试样的应变发展特性和应力-应变滞回圈的变化趋势.基于动三轴试验结果,分析了应变随着振次的发展变化过程,并结合应力-应变滞回圈的变化过程,将应变发展划分为三个阶段;同时,根据滞回圈的形态变化,提出了振动过程中应变的塑性累积,并通过数据分析,给出了塑性累积计算的公式.更多还原

【Abstract】 Through the dynamic triaxial tests of the saturated remolded loess,the strain development and deviatoric stress-axial strain curve are analysed of the sample during liquefaction process.Based on the dynamic triaxial test results,the strain development with the vibration frequency are analysed and combined with the tendency of changes on deviatoric stress-axial strain curve,the strain development is divided into three stages;At the same time,plastic accumulation of the strain during vibration process was put forward according to the change of deviatoric stress-axial strain curve,and the formula of plastic accumulate computation are given through the analysis of data.更多还原