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利用多次冻融后加筋黏土路堤相关试验参数对其进行有限元计算,确定了加筋黏土结构各初始因素对其工作性能的影响规律,并利用ABAQUS有限元计算软件对各种计算条件下的位移和应力进行求解,确定了冻融循环后位移和应力的最大值.结果显示:增加加筋黏土路堤中的格栅层数可以减小冻融后加筋路堤的竖向和水平位移及土体剪应力最大值,且格栅层数的增加对土体变形的影响强于对土体剪应力值的影响.土体压实度的增大可以减小加筋路堤的竖向和水平位移,同时引起土中剪应力数值的增大;土体初始含水率的减小可以减小加筋路堤的竖向和水平位移,同时引起土中剪应力数值的减小.
The finite element method was used to calculate the experimental parameters of the reinforced clay embankment after repeated freeze-thaw cycles. The influence of each initial factor of the reinforced clay structure on the working performance was determined. With ABAQUS finite element software, The results show that increasing the number of grid layers in the reinforced clay embankment can reduce the vertical and horizontal displacements of the reinforced embankment after freezing and thawing and The maximum value of soil shear stress and the increase of the number of grid layers have a greater influence on the soil deformation than that on the soil shear stress.The increase of soil compaction can reduce the vertical and horizontal Displacement, at the same time, the numerical value of soil shear stress is increased. The reduction of initial soil water content can reduce the vertical and horizontal displacements of reinforced embankments and reduce the numerical value of soil shear stress.