重载铁路天窗后期区段通过能力的影响因素研究

A Study on the Influencing Factors in Passing Capacity of Later Section of Maintenance Curfew in Heavy-duty Railway

天窗施工是影响运输任务完成的重要因素,如何降低运营期间天窗施工对运输任务的影响,提高运输通过能力、增加单日运输量、降低运输成本,确保运输和施工任务的双完成是铁路追求的目标。针对这一问题,文章以朔黄铁路规定的天窗施工完毕后慢行条件为依据,考虑道床路基捣固、桥隧涵施工两种工程作业,探讨了自动闭塞区段天窗施工期间的通过能力及天窗施工完毕后慢行延时造成的累加效应。选取慢行时间、区间长度、速度等变量,分析不同变量条件下的行车情况,提出减少天窗期慢行影响的措施,从而提高天窗日的运输能力及作业效率。

Skylight construction is an important factor affecting the completion of transportation tasks.One goal of railways is determining how to reduce the impact of skylight construction on transportation tasks during operation,improve transportation capacity,increase daily transportation volume,reduce transportation costs,and ensure the completion of both transportation and construction tasks.To solve this problem,this paper considers two kinds of engineering operations,ballast roadbed tamping and bridge and culvert construction,according to the chronic condition after the completion of skylight construction stipulated by Shuohuang Railway.By discussing the influence of skylight construction on passenger capacity in the automatic block section and the semi-automatic block section,as well as the influence of the cumulative effect caused by slow travel delays after the completion of skylight construction,we are able to put forth measures for reducing the impact of slow travel after skylight construction.Measures for reducing the frequency of occurrence and time of slow travel,reducing construction in slow travel sections,and increasing slow travel speeds can be adopted to improve the transportation capacity and operation efficiency of skylight construction.