摘要
从理论上对我国300～350km/h规范中客运专线竖曲线与平曲线重叠设置的规定对行车舒适度的影响进行分析,得出结论,提出建议。通过对最高行车速度300km/h和350km/h的客运专线竖曲线与平曲线重叠设置对舒适度影响的计算分析,得出凸形竖曲线与平曲线重叠设置对行车舒适度影响较大,其影响程度随速度差的增大而增大显著,随平曲线和竖曲线半径的增大而减少,当竖曲线与半径为4500～7000m的平曲线重叠设置时,对舒适度影响明显,建议在设计中尽量避免与其重叠设置;凹形竖曲线与平曲线重叠设置对舒适度基本没有影响。这些结论对客运专线线路设计有一定的指导作用。
This paper analyzes theoretically the influence on riding comfort according to the regulation for vertical and horizontal curve overlap settings in Code for design of 300- 350 km/h Passenger Dedicated Railway in China and presents some conclusive suggestions. The results from calculating its speed of 300 km/h and 350km/h respectively prove that overlap setting of the convex vertical curve with horizontal curve has greater influence on riding comfort and its influence degree increases significantly with the speed difference increase and decreases with the horizontal and vertical curve radius increase. When vertical curve overlaps with the horizontal curve with a radius of 4 500 m to 7 000 m, such influence on the riding comfort is obvious. Therefore, it is proposed that such overlap setting is not better in design. However, the concave vertical curve overlap with the horizontal curve has no influence on riding comfort almost. This is of certain guidance on design of passenger dedicated railway.
出处
《高速铁路技术》
2010年第2期34-39,43,共7页
High Speed Railway Technology
关键词
客运专线
竖曲线
平曲线
重叠
舒适度
影响
passenger dedicated railway
vertical curve
horizontal curve
overlapping
riding comtort
intluence
