铁路通信信号工程技术2025，Vol.22Issue(11)：20-26,7.DOI:10.3969/j.issn.1673-4440.2025.11.004
高速铁路长大下坡道区段闭塞分区划分优化研究
Research on Optimization of Block Section Division in High-speed Railway Sections with Long and Steep Downgrades
摘要
Abstract
To address issues such as abnormal braking and insufficient matching of the train control system in high-speed railway sections with long and steep downgrades,this paper proposes an optimization method for block section division.The proposed method focuses on addressing the abnormal braking caused by train movement authority shortening by adjusting the length of block sections,relocating signal points in the section,and modifying engineering data of the train control system.With the Zhengzhou-Wanzhou High-Speed Railway taken as an example,simulation and real-train verification results after implementing the optimization scheme show that:under the CTCS-3 train control mode,abnormal braking was completely eliminated throughout the line;and under the CTCS-2 train control mode,the speed reduction issue in some sections was significantly improved,with the reduction amplitude controlled within 7%(e.g.,the train operation speed in the reverse direction decreased from 250 km/h to 245 km/h).The research findings provide effective theoretical support and engineering practice reference for the optimized design of block sections in sections with long and steep downgrades,significantly enhancing train operation safety and transportation efficiency.关键词
高速铁路/长大下坡道/闭塞分区划分/高速铁路安全/运行效率优化Key words
high-speed railway/long and steep downgrades/block section division/high-speed railway safety/operational efficiency optimization分类
交通运输引用本文复制引用
张黛,王凌,杜通道,梁朝辉,范海江..高速铁路长大下坡道区段闭塞分区划分优化研究[J].铁路通信信号工程技术,2025,22(11):20-26,7.基金项目
四川省重大科技专项(2023ZDZX0008) （2023ZDZX0008）
