摘要
为了找出铁路曲线及曲线超高对建筑限界的影响范围、形成一套比较系统的加宽方法。通过分析研究车辆在圆曲线、缓和曲线、曲线前直线段上以及车辆在以上三者之间过渡运行期间,车体轴线偏离股道中心和车体倾斜的现象,辅以模拟计算和图表分析,得出曲线地段、特别是变加宽地段的限界变化规律。针对有缓和曲线和无缓和曲线的铁路曲线,分别归纳出内侧和外侧各分段的加宽计算办法,总结形成整套简明实用的加宽方法示意图及关键点计算公式。
The purpose of this study was to find out the influence ranges on the construction clearance limits caused by the railway curve and curve superelevation, so as to form a set of more systematic widening methods of clearance limits. Through analysis for the phenomena, including the vehicle tilt and the vehicle decentration from the railway line center on circular curve, on transition curve, on straight line section in front of the curve and on the relevant transition ranges, and supplemented by simulation calculation and diagram analysis, the variation laws of the clearance limits at the curve section and especially at the variable widened section were obtained. Then aiming at the railway curves with or without transition curve, the calculation methods for the clearance limit widening of all subsections at the inner side and the outside of the curve were summarized respectively, so that a set of simple and practical diagrams of widening methods and the formulas of key points have been formed.
出处
《铁道标准设计》
北大核心
2013年第4期20-26,50,共8页
Railway Standard Design
关键词
铁路曲线
限界
加宽
研究
railway curve
clearance limit
widening
study
