温州市域铁路道岔设计方案研究  

Research on the Design Scheme of Turnout for Wenzhou Regional Railway

作　　者：韩志刚[1] 

机构地区：[1]中铁第四勘察设计院集团有限公司,武汉430063

出　　处：《铁道工程学报》2015年第2期48-53,共6页Journal of Railway Engineering Society

摘　　要：研究目的:在市域铁路轨道交通中,道岔是轨道结构的重要组成部分,影响线路设计标准。由于城市轨道交通正线道岔直向通过速度较低,而国铁正线道岔造价较高,经济性较差。为满足温州市域铁路S1线时速120 km的建设标准要求,需要结合城市轨道交通及国铁道岔的特点,对市域铁路正线道岔设计方案进行研究,开发适用于市域铁路的道岔产品。研究结论:(1)城市轨道交通中的60 kg/m钢轨9#固定辙叉道岔存在有害空间,直向通过速度较低;而9#可动心轨单开道岔可动部分较短,会引起过大的扳动力及不足位移,影响行车安全,因此60 kg/m钢轨9#道岔不满足市域铁路要求;(2)经过尖轨平面线形和辙叉类型的对比分析,得出采用国铁GLC(08)01改进后的平面线型的60 kg/m钢轨12#曲线形尖轨可动心轨道岔能满足市域铁路建设标准要求;(3)60 kg/m钢轨12#可动心道岔扣件采用"上硬下软"轨下胶垫和板下弹性垫板的双层弹性设计方案,能够使得扣件具有良好的约束钢轨能力、刚度低、较好的调整能力;(4)本研究成果对市域铁路道岔设计方案具有一定的参考意义。Research purposes： In the domain of regional railway, the turnout is an important part of track structure and will affect the line design standard. In the urban railway transit, the main line turnout has lower passing speed, but in the national railway, the main line turnout has higher cost and poor in economy. To meet the needs of Wenzhou regional railway S1 line construction standard with speed 120 km/h, it needs to do research work and develop the suitable turnout product for Wenzhou regional railway which combines the characteristics of turnout of urban railway transit and national railway. Research conclusions： （ 1 ） In the urban railway transit, the 60 kg/m rail No. 9 turnout with fixed point rail exists harmful space and has lower passing speed. The movable portion of 60 kg/m rail No. 9 tumout with moved point rail is too short, which can induce over switching force and inadequate displacement, as well as influence the track safety. Therefore, the 60 kg/m rail No. 9 turnout does not meet the regional railway requirements. （2） Through the comparison of rail horizontal alignment and frog type analysis, we obtained that 60 kg/m rail No. 12 turnout with improved horizontal alignment of national railway GLC （08）01 and curved rail, moved point rail can meet the requirements of construction standard of regional railway;. （3） The fastener of 60 kg/m rail No. 12 turnout with moved point rail uses the double elastic design with rail plate hard and elastic plate soft, which can make the fastener has good constraint capacity, low stiffness and adjustments. （4） The research results can provide some references for the design scheme of turnout for regional railway.

关 键 词：市域铁路 可动心轨道岔 减振设计 

分 类 号：U121[交通运输工程]