摘要
为研究不同设计参数对公路拓宽路基变形特性的影响,采用有限元软件建立拓宽路基数值模型,对比分析了不同拓宽方式、路基高度、路基宽度及路基弹性模量对新旧路基变形特性的影响规律。结果表明:双侧拓宽方式对于控制新旧路基水平变形及沉降差异效果较好,路基高度、宽度的增大会同时增大新旧路基水平变形和不均匀沉降,但路基弹性模量的增大可有效控制新旧路基的水平变形和不均匀沉降。
In order to study the influence of different design parameters on the deformation characteristics of highway widening subgrade,this paper established a numerical model,compared and analyzed the influence laws of different widening methods,height,width and elastic modulus on old and new subgrade.The results show that:the two-sided widening method has a good effect on controlling the horizontal deformation and settlement difference between old and new subgrade.The increase of the height and width of subgrade will simultaneously increase the horizontal deformation and uneven settlement of old and new subgrade,but the increase of subgrade elastic modulus can effectively control the horizontal deformation and uneven settlement of old and new subgrade.
作者
薛洋
XUE Yang(Xinjiang ruilufeng Engineering Technology Co.,Ltd.,Xinjiang Changji 831100 China)
关键词
公路拓宽路基
设计参数
水平变形
沉降
highway widening of subgrade
design parameters
horizontal deformation
settlement
