铁路缓和曲线地段建筑限界加宽计算方法  

A Method for Deciding Structure Gauge Widening in Railway Transition Curve Segments

作　　者：廖显军 LIAO Xianjun(Nanning Railway Engineering Construction Headquarters of China Railway Nanning Bureau Group Co.,Ltd.,Nanning,Guangxi 530029,China)

机构地区：[1]中国铁路南宁局集团有限公司南宁铁路工程建设指挥部,广西南宁530029

出　　处：《铁道运营技术》2024年第2期23-27,共5页Railway Operation Technology

摘　　要：针对不同的铁路规范限界加宽方式有部分规定铁路曲线地段建筑限界加宽计算方法不具体或过于抽象的情况,造成限界加宽计算极不方便。特别是铁路车站及枢纽设计规范关于有缓和曲线地段建筑限界加宽规定,只列出铁路限界轮廓线与线路中心线几何关系原则,并无具体计算公式,无法进行正常计算。因此,研究通过利用两线线间距的计算原理,重点推导出铁路车站及枢纽设计规范关于有缓和曲线地段建筑限界加宽计算公式,准确计算出建筑限界加宽后轮廓线与线路中心线位置的相互几何关系,可作为铁路工程设计、监理、施工及既有线设备日常管养的参考。,resulting in extremely inconve-nient gauge calculation.Particularly,the provisions on widening of building clearance in sections with transition curves in the Code for Design of Railway Stations and Hubs only list the principle of geometric relationship between the contour line of railway clearance and the center line of the line,and there is no specific calculation formula,so it is impossible to carry out normal calculation.Therefore,by using the cal-culation principle of the distance between two lines,the calculation formula of building clearance widen-ing in sections with transition curve in the design code of railway stations and hubs is deduced emphatical-ly,and the geometric relationship between the contour line and the position of the line center line after the building clearance widening is accurately calculated,which can be used as a reference for railway engi-neering design,supervision,construction and daily management and maintenance of existing line equip-ment.

关 键 词：铁路曲线 线间距 坐标系 建筑限界 

分 类 号：U21[交通运输工程—道路与铁道工程]