地铁12号道岔线形优化设计研究  

Research on the Optimization Design about Layout of No.12 Metro Turnout

作　　者：熊维[1] 田春香[1] 徐井芒[2] 王平[2] 

机构地区：[1]中铁二院工程集团有限责任公司,成都610031 [2]西南交通大学高速铁路线路工程教育部重点实验室,成都610031

出　　处：《铁道工程学报》2017年第10期87-92,共6页Journal of Railway Engineering Society

摘　　要：研究目的:为提高地铁12号道岔的侧向通过能力,本文基于质点运动基本参数法提出4种平面线形设计方案,建立地铁车辆道岔耦合动力学模型,对比分析地铁道岔既有方案和优化方案下车辆-道岔系统的动态相互作用特性。研究结论:(1)地铁道岔直线段尖轨长度、转辙角、导曲线半径是影响侧向通过能力的主要因素,既有方案的导曲线半径较小,是限制其侧向通过能力的主要原因;(2)较大的导曲线半径一方面能够提高车辆侧向通过道岔的能力,另一方面则会增大道岔长度,不符合城市地铁发展的要求;(3)推荐使用方案一提高道岔侧向通过能力,方案一导曲线半径为400 m,道岔全长37.8 m,该方案能够提升道岔侧向通过能力且不会增大道岔长度;(4)本研究成果能够为提升地铁道岔侧向通过能力提供依据。Research purposes： In order to improve the lateral capacity of the No. 12 metro turnout, four optimized design schemes are put forward based on basic parameters method of particle motion. The metro vehicle turnout coupling dynamics model is established to compare and analyze the dynamic interaction characteristics of the vehicle - turnout systems of the original scheme and optimized scheme. Research conclusions：（ 1 ） Length of switch rail, switch angle and mediated curve radius in straight line segments of metro turnout are the main factors influencing the lateral capacity. The mediated curve radiuses of original scheme are smaller, which is the main reason that limits its lateral capacity. （2） On one hand, the larger mediated curve radius can improve the lateral capacity of vehicle through the switch, but on the other hand, the length of switch will be increased, not meeting the requirements of the development of urban metro. （3）The scheme one is recommended to improve the lateral capacity of metro turnout, in which mediated curve radius is 400 meters, total length of switch is 37.8 meters, and this scheme can improve the lateral capacity of metro turnout and will not increase the length of switch. （4） The research results can provide the basis for improving the lateral capacity of the metro turnout.

关 键 词：地铁 道岔 线形 优化 动力性能 

分 类 号：U213.6[交通运输工程—道路与铁道工程]