大同至西安高速铁路提速方案研究  

Study on Speeding-up Reconstruction Option of Datong-Xi’an High-speed Railway

作　　者：苏勇 SU Yong(China Railway Design Corporation,Tianjin 300308,China)

机构地区：[1]中国铁路设计集团有限公司,天津

出　　处：《高速铁路技术》2022年第4期120-124,130,共6页High Speed Railway Technology

摘　　要：本文研究了大西高速铁路提速至300 km/h和350 km/h时线路基础设施条件和关键系统对提速工程的影响,在无砟轨道结构及超高适应性分析的基础上,结合运行时分和工程投资的比较,同时综合考虑特殊扣件调整超高大小的可实施性,推荐大西高速铁路采用改建工程较小、经济合理、节时效果明显、可行实施性强的300 km/h提速方案,该方案可起到有效提升大西高速铁路运行品质、推进区域社会经济发展等诸多效益的作用。研究成果可为类似既有高速铁路提速项目提供参考借鉴。In this paper, the influences of line infrastructure conditions and key systems on the speeding-up reconstruction project with the operating speed increased to 300 km/h and 350 km/h respectively are studied. Based on the analysis of adaptability of the ballastless track structure and the superelevation, the comparison of the running time and project investment, and the feasibility of specific fastenings and superelevation adjustment, the option of speed increase to 300 km/h with small reconstruction work quantities, good cost efficiency, obvious time saving effect and strong feasibility is recommended. This option can effectively improve the operation quality of Datong-Xi’an High-speed Railway and promote regional social and economic development. The research results can provide reference for similar existing high-speed railway speed-up reconstruction projects.

关 键 词：高速铁路 提速 运行时分 超高 工程投资 

分 类 号：U238[交通运输工程—道路与铁道工程]