长大坡度对高速铁路区间通过能力影响分析  

Analysis on Impact of Long Steep Gradient on Passing Capacity in Section of High-speed Railway

作　　者：崔衍渠[1] CUI Yanqu(China Railway Eryuan Engineering Group Co. , Ltd. , Chengdu 610031, China)

机构地区：[1]中铁二院工程集团有限责任公司,成都610031

出　　处：《高速铁路技术》2017年第4期19-23,共5页High Speed Railway Technology

摘　　要：国内外高速铁路对大坡度的使用越来越多,使用时大多从动车组本身牵引、制动性能,分析列车运行时间和运行安全性的情况,看重大坡度使用对减少工程投资、规避工程风险等方面的影响,而在大坡度对区间通过能力的影响分析方面则研究较少。文章从区间通过能力的影响因素分析入手,对长大下坡地段的列车追踪间隔时分进行重点分析,在假定其他因素不变情况下,分析论证不同长度、不同坡度的大坡度选择对列车追踪间隔时分的影响程度,可为勘察设计过程中科学合理地选择坡度提供参考。The long steep gradient is more and more used in domestic and foreign high-speed railways, mostly, the train running time, running safety are analyzed from EMU traction and braking performance, and impact of long steep gradient on reducing the engineering investment and avoiding engineering risk is analyzed, but analysis on impact of long steep gradient on the passing capacity in section is more rare. In this paper, starting with influence factors analysis on the passing capacity in section, the tracking interval time between trains for long and steep downgrade sections is especially analyzed. Analyze and demonstrate the selection of large gradient with different length and gradient has different effects on train tracking interval time under the assumption of other factors unchanged, so as to provide reference for the scientific and rational choice of gradient in the process of survey and design.

关 键 词：高速铁路 长大下坡 牵引计算 追踪间隔时间 区间通过能力 

分 类 号：U292.53[交通运输工程—交通运输规划与管理]