某公路大跨径拱桥拱座基础变位影响及稳定性分析

Analysis of deformation effect and stability of abutment foundation of a highway long-span arch bridge

结合湖北峡谷地区某公路大跨径拱桥工程,通过各种数值模拟技术,对拱座基础变位影响及拱座的边坡稳定性进行分析研究,给出新的拱座基础方案并加以模拟分析,期望通过此案例给类似工程提供一定参考及借鉴价值。

Arch bridge is a very important and common bridge type in bridge structure,which has the advantages of large span capacity,beautiful shape and so on.The abutment is an important component in the substructure of arch bridge,which is the main force transmission component connecting the arch rib and the foundation.At the same time,the load generated by the structure of the bridge and the traffic on the bridge will be transferred from the abutment to the bedrock of the lower slope,which has an effect on the stability of the abutment slope.