长大货车驼峰溜放中车辆底部与轨面最小距离计算方法及应用  

Calculation Method of Minimum Distance between Rail Surface and Bottom of Oversize Freight Car during Hump Sliding and Its Application

作　　者：仇帅 夏胜利[1] QIU Shuai;XIA Shengli(School of Traffic and Transportation,Beijing Jiaotong University,Beijing 100044,China)

机构地区：[1]北京交通大学交通运输学院,北京100044

出　　处：《铁道运输与经济》2025年第2期206-213,224,共9页Railway Transport and Economy

基　　金：中央高校基本科研业务费专项资金资助项目(2019JBM033)。

摘　　要：为解决长大货车驼峰溜放过程中出现的触底问题,在建立长大货车驼峰溜放过程中车辆车底距钢轨轨面距离模型的基础上,给出了车辆车底距钢轨轨面距离最小值的计算公式。通过对车辆车底距钢轨轨面距离最小值这一参数进行定性和定量分析,得到长大货车车辆车底距钢轨轨面距离最小值出现的位置、车辆车底距钢轨轨面距离最小值的定量计算公式以及车辆能否通过驼峰进行溜放的判断条件。对于不能溜放长大货车的驼峰纵断面,提供了一种涉及峰顶竖曲线及加速区第一坡段的改造方案,最后以JSQ6型凹底双层汽车专用车辆驼峰溜放进行实例验证,结果表明该计算过程和判定方法可为制定长大货车溜放方案提供一定的理论依据。To solve the problem of bottoming out of oversize freight cars during hump sliding,this paper established a model of distance between rail surface and bottom of an oversize freight car during hump sliding and further provided a calculation formula of the minimum distance.Based on the qualitative and quantitative analysis of the minimum distance from the bottom of a freight car to the rail surface,the study determined the position where the minimum distance appears,the quantitative calculation formula of the minimum distance,and the judgment conditions of whether hump sliding is feasible for a freight car.For the hump profiles that cannot realize the hump sliding of oversize freight cars,this paper provided a modification scheme involving the vertical curve of the peak and the first slope section of the acceleration zone.The example analysis was based on the hump sliding of a JSQ6 concave-bottom double-decker freight car special for automobiles.The results show that the calculation process and judgment method can provide a theoretical basis for the formulation of sliding schemes of oversize freight cars.

关 键 词：铁路运输 铁路编组站 驼峰溜放 禁溜车 长大货车 驼峰纵断面改造 

分 类 号：U291.4[交通运输工程—交通运输规划与管理]