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研究目的:京广线作为我国南北运输的主要通道,在客货运输中起着国民经济大动脉作用,而位于京广线中段的郑州至武汉间铁路在路网中的作用更是举足轻重。消除郑州至武汉间仅存的两个限速区段,提高郑武全段乃至京广全线的通过能力及客货列车运行速度,进一步适应客货运输的发展需求,提高铁路在运输市场的竞争力。研究方法:通过分析郑州至武汉间铁路历经6次大提速改造之后仍然存在的主要薄弱环节:运输能力紧张,运输数量不能适应发展需求及运行速度偏低,运输质量不能满足市场需求等,论证消除限速区段的必要性; 通过对两个限速区段改造方案的研究,论证消除限速区段的可行性。研究结果:消除郑州至武汉间孟庙——人和站南及长台关——陈家河间两个限速区段技术上是可行的,经济上是合理的。研究结论:消除孟庙——人和站南限速区段对长台关——陈家河段同时实施落坡及提速改线工程,既能满足郑州至武汉间全段客车提速的要求,也能适应既有线未来大量货物列车的运输需求,宜尽早实施。
Research purposes: The Beijing-Guangzhou line, as the main channel of North-South transport in China, plays a vital role in the national economy in passenger and freight transport. The railway between Zhengzhou and Wuhan in the middle of the Beijing-Guangzhou line plays a more important role in the road network. Eliminate the only two speed limit sections between Zhengzhou and Wuhan and improve the capacity of passing through all the sections of Zhengwu and even the entire Beijing-Guangzhou line and the speed of passenger and freight trains to further meet the development needs of passenger and freight transport and enhance the competitiveness of the railway in the transport market. Research methods: By analyzing the main weak links still remaining after the railway transformation from Zhengzhou to Wuhan after 6 times speeding up, the transportation capacity can not meet the needs of development and the running speed is low, and the quality of transportation can not meet the market demand. The necessity of the speed limit zone; Through the research on the two speed limit zone reform programs, the feasibility of eliminating the speed limit zone is demonstrated. Findings: It is technically feasible to eliminate the two speed-limiting sections between Mengmiao-Renhe Station South and Changtaiguan-Chenjiahe River between Zhengzhou and Wuhan, and it is economically reasonable. Research conclusions: The elimination of Mengmiao-Renhe Station South speed limit section simultaneously implements the project of falling slope and speed change and rerouting in the section between Changtaiguan and Chenjiahe, which can not only meet the requirements of speeding up passenger cars in Zhengzhou-Wuhan but also adapt The existing transport needs of a large number of freight trains in existing lines should be implemented as soon as possible.