交通运输工程与信息学报2018，Vol.16Issue(2)：64-68,5.DOI:10.3969/j.issn.1672-4747.2018.02.010
铁路隧道坡度折减方法的探讨
Discussion on the Method of Gradient Reduction in Railway Tunnel
唐亮1
作者信息
- 1. 中铁二院工程集团有限责任公司, 成都 610031
- 折叠
摘要
Abstract
This paper describes the principle of gradient reduction in railway tunnels, discusses the methods and existing problems of the gradient reduction in railway tunnels, and analyzes the factors affecting the gradient reduction in railway tunnels. It obtains the additional air resistance values of tunnel based on unsteady flow theory test and simulation. Furthermore, it studies on the maximum gradients and charge rules of tunnels under different tunnel lengths, different cross-sectional areas, different locomotive types and different traction masses. The paper proposes an absolute reduction method of tunnel gradient reduction for railway line selection design, which provides a reference for the design practice and theoretical study of gradient reduction of railway tunnels. 关键词
隧道坡度折减/最大坡度系数/隧道空气附加阻力/绝对折减法Key words
gradient reduction in railway tunnel/maximum gradient coefficient in railway tunnel/additional air resistance in tunnel/absolute reduction method分类
交通工程引用本文复制引用
唐亮..铁路隧道坡度折减方法的探讨[J].交通运输工程与信息学报,2018,16(2):64-68,5.
