开行3万吨重载列车运输组织方案研究
Study on Transportation Organization for 30 000-ton Heavy-haul Trains
紧跟世界重载铁路先进技术水平,提高运输能力,我国有必要发展3万吨重载列车。以大秦线为例,借鉴2万吨重载列车开行经验,探讨开行3万吨重载列车的运输组织方案,采用组合站始发—直达终到站分解卸车—空车返回的循环运输模式,从列车始发作业站、编组方式、列车检查、司机换班、终到分解、回空运行等方面,阐述运输组织方案的合理性。考虑运输能力受始发作业站能力、牵引供电能力、区间通过能力的限制,检算始发组合站到发线能力及重车方向运输能力,结果表明,在现有列车开行方案基础上,开行6列3万吨重载列车,平均通过能力利用率达到93.1%,输送能力可提升0.49亿t,运输能力提高11.5%,扩能效果良好;也可以选择采用3万吨重载列车1∶1替换2万吨重载列车的组织方式,输送能力可提升0.17亿t。
In order to keep up with the world's advanced heavy-haul technologies and improve transportation capacity, it is necessary for China to develop 30 000-ton heavy-haul trains. Taking Daqin (Datong-Qinhuangdao) Line as an example, this paper, based on the running experience of 20 000-ton heavy-haul trains, explored the scheme of transportation organization for running 30 000-ton heavy-haul trains. And a circular transportation mode—departure from the combined station, direct arrival at the terminal station for disassembly and unloading, and return of empty cars was adopted. In addition, the rationality of the transportation organization was expounded from the perspectives of train departure operation station, marshalling mode, train inspection, change of driver shifts, disassembly at the terminal station, return of empty cars, etc. Then, considering that transportation capacity is subject to the arrival-departure line capacity, traction power supply capacity, and carrying capacity, the marshalling-departure capacity of the departure station and the capacity of transportation in the load car direction were checked and calculated. The results show that based on the existing train operation scheme, six 30 000-ton heavy-haul trains are in operation, with an average carrying capacity utilization rate of 93.1%, an increase of 49 million tons (by 11.5%) in transportation capacity, proving good expansion effect. Alternatively, the organization mode that involves replacing 20 000-ton heavy-haul trains with 30 000-ton heavy-haul trains in a 1∶1 ratio can be adopted, which can increase the transportation capacity by 17 million tons.
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中国国家铁路集团有限公司科技研究开发计划课题(J2021X007)
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