论城市轨道交通最小曲线半径标准的选择

Study on Radius Standard of Urban Rail Transit in China

我国目前的城市轨道交通线路在选择最小曲线半径标准时有增大的趋势 ,这对降低城市轨道交通造价、改善换乘设计方案是不利的 .因此在收集国内外有关资料的基础上 ,较全面系统地分析了曲线半径对工程可实施性、工程费、运营费、换乘设计方案及车辆选型的影响 ,论述了降低城市轨道交通最小曲线半径标准值的重要性及合理性 .建议在目前车辆条件下可降低车站两端的最小曲线半径标准 。

There is a trend of expanding the numerical values of radius standard used in the urban rail transit in P.R. China,which is harmful to reducing the cost and to improving the design of transfer stations.Based on the data collected from home and abroad,the radius standards are comprehensively analyzed in influences on the implementation,engineering cost,running cost,vehicle types,layout alternatives of transfer stations,etc.On the basis of the analysis,the authors emphasized the importance and rationality of reducing the numerical values of radius standard implemented in P.R. China.They suggest that smaller values than the radius standard be used near stations and some new type of vehicles be developed which are suitable for the small curves.