既有线反向曲线整正偏角法的优化

Optimization of Deflection Angle Method for Existing Railway Reverse Curve Realignment

既有铁路线路有一些反向曲线的夹直线较短,使用偏角法对反向曲线进行整正的过程中容易产生夹直线不直、夹直线长度不足的问题。本文提出偏角法在整正反向曲线过程中外业测量和内业计算的优化方案,并以向塘西编组场机7线反向曲线的整正为例,应用优化方案对反向曲线进行整正。实践表明,优化方案能够使反向曲线的夹直线满足技术要求。

As the intermediate straight lines of some reverse curves in existing railways are short, during the process of reverse curve realignment using traditional deflection angle method, the problem that the intermediate straight lines are not straight or long enough usually are faced. The paper presented an optimization scheme on field work and office calculation during the process of reverse curve realignment with deflection angle method. Taking the 7th line within Xiangtangxi marshalling yard as example, the optimization scheme was applied to realign the reverse curve. Practice showed that the intermediate straight realigned by optimization scheme meet technical requirements.