地铁平行线路缩短渡线的计算原理及画法

Calculation principle and drawing technique of shortened crossover of parallel subway lines

通过对国内外地铁发展情况分析介绍及缩短渡线应用前后线路规模情况的对比,总结出缩短渡线的特点及其应用的目的和意义。并论述了缩短渡线的原理,计算得出B型车9号曲尖轨一般情况下可采用缩短渡线的最小线间距要求。最后提供了一种缩短渡线的绘制方法。

Through the introduction and analysis of domestic and overseas subway development and the comparison of lines scale before and after the application of shortened crossover,the characteristics of the shortened crossover and the purpose and significance of its application were summarized. In addition,the principle of the shortened crossover was given at the same time,and the minimum line spacing of shortened crossover for the 9# curved rail of B type vehicle in general condition was calculated.At last,a method of drawing the shortened single crossover was supplied.