市域铁路线路平纵断面标准研究及应用

The Study and Application of Standards on Track Plane and Profile of Suburban Railway

市域铁路设计速度为100~160km/h,采用宽体车和窄体车2种车型,在我国城镇化建设中具有广阔的发展前景。线路技术标准应与市域铁路的功能定位相协调,线路平面设计标准应体现市域铁路特点。结合国内外市域铁路平纵断面标准研究成果,通过优化超高参数、参考行车v-s曲线并针对不同车型进行技术参数分析,提出最小平面曲线半径取值、线间距及其加宽值、长大坡道标准和竖曲线设置条件等设计技术标准。该标准适应我国市域铁路实际情况,在关注旅客舒适性要求的同时也充分考虑了动车组的技术条件,与现行铁路线路设计标准相比具有一定创新性,充分体现了市域铁路特点,且技术经济性更为合理。

With a design speed of 100-160 km/h, suburban railways apply both wide-and narrow-body trains, rushing in great prospects for the urbanization endeavor of China. Technical standards on track shall be in line with the functions and purpose of suburban railway, while the standards on the plane design of trach shall reflects the characteristics of suburban railways. In this light, the paper takes reference from the deliverables in both China and beyond of standard studies on rail plane and profile for suburban railways, optimize the superelevation parameters and analyzes the technical parameters of different train type based on the v-s operation curves. Afterwards, the paper proposes the design standard that specify the parameters of suburban railways, for instance minimum curve radius negotiable, distance between track centers and its widened range, parameters of long and deep gradient, vertical curves and etc. The standard proposed – consistant with the reality of China’s suburban railway – considers both the riding comfort and the technical conditions of EMUs. In comparison with current standards, the document is innovative and makes technical and economic sense, as it fully reflects the features of suburban railway.