高速铁路车站两端平纵断面设计参数匹配及检算研究  

Research on Design Parameter Matching and Validating of the Flat and Longitudinal Sections of High-speed Railway Station at Both Ends

作　　者：李帅[1] LI Shuai(China Railway Siyuan Survey and Design Group Co.,Ltd.,Wuhan 430063,China)

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：《铁道标准设计》2022年第4期25-29,共5页Railway Standard Design

基　　金：中铁第四勘察设计院集团有限公司科研开发课题(2020K015)。

摘　　要：高速铁路线路选线设计中,根据高、低速车匹配时的舒适度要求,检算以通过车为主的车站两端曲线半径、曲线距车站中心的距离以及坡度设置是否合理,对稳定线路平纵断面方案、避免高速列车限速等方面具有重要意义。然而,现有检算方法存在计算停站车出站运行速度与最不利检算要求不匹配、曲线半径设置或调整未综合考虑曲线距车站中心的距离以及坡度大小等问题。利用欠、过超高允许值下的最小曲线半径计算公式,选定了停站车检算的最不利车型为CRH3C型动车组。利用列车牵引特性曲线、运行阻力以及单位合力计算公式,开发了停站车牵引状态下V-S曲线简易计算方法和线路平纵断面设计参数检算程序。经昌赣高速铁路赣州西站实例验证,通过检算程序计算的停车站运行至直圆点的速度较现有计算方法小8 km/h,速度计算结果更符合最不利情况,检算程序能合理、准确验证平纵断面设计参数是否满足要求。In the design of high-speed railway route selection,it is of great significance to stabilize the plan of horizontal and vertical sections of the line and avoid speed limit of high-speed trains by checking whether the radius of the curve at both ends of the station,the distance between the curve and the center of the station,and the slope setting are reasonable according to the comfort requirements for the matching of high-speed and low-speed trains.However,the existing validation methods have problems such as the mismatching between the calculation of the outgoing speed of the parking trains and the most unfavorable checking requirements,the setting or adjustment of the curve radius and the lack of comprehensive consideration of the distance between the straight point of the curve and the center of the station and the size of the slope.Using the formula of the minimum curve radius under the allowable values of under and over superelevation,CRH3 C Electric Multiple Units(EMU)is selected as the most unfavorable vehicle model for the validation.Based on the traction characteristic curve,the formulas of running resistance and the resultant force,a simple calculation method for Velocity-Displacement(V-S)curve and a program for validating the parameters of the flat and longitudinal design of the line in the traction state of the arriving train are developed.According to the example verification of Ganzhou West Station of Nanchang-Ganzhou High-speed Railway,the speed from the arriving station to the point of tangent calculated by the validation program is 8 km/h lower than that by the existing calculation method,and the speed calculation result is more in line with the most unfavorable situation.The developed validation program is reasonable and accurate in verifying whether the flat and longitudinal design parameters meet the requirements.

关 键 词：高速铁路 停站车 不停站车 平纵断面 设计参数 检算程序 

分 类 号：U212.32[交通运输工程—道路与铁道工程]