半刚性基层沥青混凝土路面反射裂缝和水损坏问题加剧了南疆阿拉尔市道路盐胀-冻胀变形,严重影响了路面使用性能。针对道路破坏情况,阿拉尔市道路改建工程采用了级配碎石柔性基层,将道路两侧路缘石及中间带均改为高挡水墙。通过数值模拟分析对比可知,改建道路结构及设施在水影响和车辆荷载的作用下的应力场值、位移场变化均小于旧路结构。 Semi-rigid base asphalt concrete pavement reflection cracks and water damage problems exacerbated the South Alar Road salt expansion - frost heave deformation, seriously affecting the performance of the pavement. In view of the road damage, the Alar City Road Reconstruction Project adopted a graded gravel flexible grass-roots, and changed the curbs and middle belts on both sides of the road into high retaining walls. Through numerical simulation analysis and comparison, we can see that the change of stress field and displacement field under the influence of water and vehicle load are less than the old road structure.