探讨重载铁路的运输组织及线路加强模式

研究目的：对铁路重载的两个重要方面——运输组织和既有线路加强进行分析探讨,力求概括总结出适合我国国情的一般模式,提出切实有效的方案. 研究方法：主要结合参与研究的我国大秦线、北同蒲线两条重载铁路的经验,列举已实施的案例,提炼出共性的特征,求证总结出重载铁路运输组织和线路加强可能的几种模式. 研究结果：根据重载铁路以煤炭运输为主的运输特点,运输组织应重点抓好重载列车的装车、运输、卸车及车辆回空、机车运用等各个环节;线路方面应对轨道、路基、桥涵采取适当有效的加强方式. 研究结论：本文根据重载线路的不同运输特点,提出重载铁路运输组织方式.在提高列车重量方面,应达到5 000 t、10 000 t、20 000 t;在装卸车组织方面,减少技术作业站的集结和分解时间,采用直接过翻车机整列卸车的循环拉运方式;技术作业站和中间站到发线长度应满足重载要求;采用客货分线.线路加强模式为采用无缝线路、高强度高质量的轨枕和钢轨、治理路基和桥涵病害、改建地段采用较高标准等措施.

Discussion on Modes of Heavy Haul Transport Organization and Railway Track Improvement

Research purposes: The analysis and discussion are made of the two important issues of heavy haul railway,namely the transportation organization and the existing railway improvement,in order to summarize the common mode(available) for the current domestic conditions and provide effective and practicable plans.Research methods:The common features are presented and several possible modes are offered for heavy haul(transportation) and track improvement based on the examples of Datong-Qinhuangdao Railway and Beitongpu Railway.Research results:According to the heavy haul railway's(transporting) characteristics that the transported goods mainly is coal,all the links of loading,transportation,unloading,empty car backing and the management of locomotives shall be paid attention to in transportation organization.The rail,subgrade,bridge and culverts should be improved to track.Research conclusions:In accordance with different transport features of heavy haul railway,the different transport modes are proposed,that is,haul load should be up to 5 000 tons,10 000 tons and 20 000 tons.The circulating(transport) method of unloading wagon tipper directly should be adopted to shorten the marshalling and decomposing time.The arrival and departure tracks in technical station and intermediate station should be long enough to meet requirements of heavy haul trains;and the separated line should be used for passenger and freight trains respectively.For(improvement) of track,jointless tracks and high strength and quality sleepers and steel rails should be adopted,and(subgrade),bridges and(culverts) should be improved with higher standard.