煤运通道技术作业站车站规模计算——以额济纳站为例
Calculation of Station Scale for Technical Operation Stations on Coal Transportation Corridors: Taking Ejina Station as an Example
针对疆煤外运格局下临哈铁路亿吨级煤炭运输需求,研究额济纳站规模计算问题,为扩能改造提供依据。《铁路车站及枢纽设计规范》规定的车站作业时分较为保守,容易导致站场规模冗余;通过实地调研湖东站、长子南站、襄州北站、靖边东站等重载铁路技术作业站,提出作业时分压缩方案:将列检时间稳定控制在35 min内、待发时间压缩至15 min以内,较规范标准减少20%作业时长。基于上述作业时分,通过计算到发线能力利用率达到核减车站规模的需求,在满足利用率阈值的基础上节省了投资。本研究表明:综合考虑规范基准值与现场可操作性的平衡,可精准优化大宗货物技术作业站规模设计,显著降低投资成本。
In response to the 100-million-ton coal transport demand on the Linhe-Hami Railway, driven by Xinjiang’s coal export pattern, this paper examines the scale calculation of Ejina Station to support capacity expansion and reconstruction. The operation times specified in the Code for Design of Railway Station and Terminal (TB 10099-2017) are relatively conservative, which can lead to oversized station yards. Based on field investigations of heavy-haul railway technical stations, including Hudong Station, Changzinan Station, Xiangzhoubei Station, and Jingbiandong Station, this paper proposed a scheme to reduce operation time. The train inspection time was stably controlled within 35 min, and the departure waiting time was reduced to within 15 min, reducing the total operation time by 20% compared with the code standard. Using the revised operation times, the station scale was reduced by calculating the utilization rate of arrival-departure track capacity, and investment was lowered while still meeting utilization thresholds. The results show that a balanced consideration of code benchmark values and field operability can accurately optimize the scale design of technical operation stations for bulk freight and significantly reduce investment costs.
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