20000t列车技术站到发线腰岔设置方案探讨

Exploration on Setting of Middle Switch of Receiving-departure Track for 20000-ton Train in Technical Station

研究目的:本文拟从分析现状开行20 000 t重载货物列车的技术站腰岔设置方案存在的主要问题,找出既能保证车站作业安全,又方便车站运输组织的合理的技术站到发线腰岔设置方案。研究方法:通过文献研究并以大秦线为例,确定重载铁路技术站到发线作业内容及合理的到发线有效长度;采用定性与定量分析相结合的方法,找出现状腰岔设置方案存在的不足,并从更好的保证运输安全、提高车站作业效率等方面探讨技术站到发线腰岔更为合理的设置方案。研究结果:找出了技术站接发20 000 t列车时,既可真正满足安全距离要求,又可通过腰岔前行出入到发线作业的技术站腰差设置方案,且该方案也可满足接发普通列车和接发10 000 t列车技术作业的要求。研究结论:接发20 000 t列车的技术站到发线总长度最小可以按3 019.24 m设置,3个腰岔的设置由前至后各段有效长分别为665.24 m,665.24,665.24 m和850 m。

Research purposes： This paper analyzes the existing key problems in the setting of middle switch in technical stations for running 20 000 - ton heavy haul freight train and finds out a rational setting of the middle switch of receiving -departure track in technical station, which ensures the operation safety in stations, and it is convenient for station - transport organization. Research methods： By studying documentation and taking Datong - Qinhuangdao Heavy - haul railway for example, this paper determines the working scope and rational effective length of the receiving - departure track for heavy load train in technical station. Then, this paper finds out the shortages of existing middle switch setting by the combination of qualitative and quantitative methods, and discusses the setting of middle switch of receiving- departure track in technical station in the aspects of safety, convenience for traffic organization and improving the working efficiency in railway station. Research results：This paper finds out the setting of the middle switch in technical station for receiving and departure of 20 000 - ton trains, which can meet the requirements of safe distance and enable train access to the receiving- departure track through the middle switch. In addition, this scheme can both satisfy the technical requirements of receiving and departure of ordinary trains and 10 000 - ton trains. Research conclusions： The minimum total length of the receiving and departure track for 20 000 - ton train in technical station is 3019.24 m, the effective lengths of the segments of the 3 middle switch are 665.24 m, 665.24 m, 665.24 m and 850 m respectively.