宜万线姚家湾大桥桥基位置选择

Selection of Position for Yaojiawan Bridge Foundation in Yichang Wanzhou Railway

利用经验坡角法和应力分析法,初步确定宜万铁路姚家湾大桥桥基位置。再根据不同桥位下边坡稳定性分析,选择出较为合适的桥基位置,利用岩体强度分析对该桥位进行验证,最终确定宜万线姚家湾大桥桥基水平距离为19m。

The preliminary position of bridge foundation of Yaojiawan bridge in Yichang-Wanzhou railway is determined by the method of empirical equation and stress analysis.According to the stability analysis of the fault at different bridge foundation positions,a rational bridge foundation position is selected.The bridge foundation position is verified by the strength analysis of the rock mass of slope,and the bridge foundation position is determined as 19m in horizontal distance.