货车无改编通过技术站节省时间的计算

Method of Calculating Wagon Hours Saved by Transferring Wagons at Technical Station without Shunting Operations

货车无改编通过技术站节省时间是货物列车编组计划的一个重要参数,该参数的取值正确与否直接关系到货物列车编组计划的质量高低.根据货车无改编通过技术站节省时间的含义,分别计算技术站按基本编组方案组织车流时的车小时消耗和直达车流无改编通过时的车小时消耗,运用车流组织的基本理论,考虑直达车流无改编通过车站时对其它车流停站时间的影响,推导出货车无改编通过技术站节省时间的计算公式.结果表明:货车无改编通过技术站节省时间主要由无改编车流自身获得的节省时间与技术站货车集结时间构成,有调中转车数及其停站时间和本站货物作业车数及其停站时间对其有一定影响,且节省时间与货物列车编组计划互为影响因素.

The wagon hours saved by passing technical station without sorting operations tsav is an important parameter to make train formation plan,and the correctness of the parameter directly affects the quality of the plan.Applying the basic theory of wagon flow organization and taking the affect of wagon flow passing through technical station without sorting operations to the staying time of other wagon flows into account,this paper has deduced the formula to calculate the value of tsav according to the definition of tsav and the results of calculating the wagon hours consumed both in the basic wagon flow organization scheme and in the scheme to organize through wagon flow pass technical station without sorting operations.The result shows that the wagon hours saved by organizing the wagon flow to pass through technical station consist of the hours obtained by the wagon flow itself and the wagon accumulation time;the affecting factors to tsav include the amount of the sorted transfer wagons and their staying time at the station,the amount of the loading and unloading wagons and their staying time at the station;the value of tsav and the train formation plan are the factors that influence each other.