红砂岩路基变形特性分析

Analysis of Deformation Characteristics of Red Sandstone Subgrade

为研究红砂岩路基变形特性,依托工程案例采用有限元软件进行模拟分析。分析计算结果得出:红砂岩填料弹性模量对路基沉降影响较大,但随弹性模量不断增加影响下降。随红砂岩填料黏聚力的增加路基中心位置沉降量下降幅度较小,说明黏聚力对路基变形影响较小。随路基填筑高度的增加,路基沉降和水平位移明显增加,但增幅有下降趋势。

To study the deformation characteristics of the red sandstone subgrade,the finite element software was used to simulate and analyze the engineering practice.By analyzing the calculation results,it can be seen that the elastic modulus of the red sandstone filler had a significant effect on the subgrade settlement.Still,the effect decreased with the increase of the elastic modulus.As the cohesion of the red sandstone filler increased,the settlement at the subgrade center decreased slightly,indicating that the cohesion had a small influence on the subgrade deformation.With the increase of the filling height of the subgrade,the settlement and horizontal displacement of the subgrade increased,but the increase had a downward trend.