黔桂铁路增建二线综合选线研究-《高速铁路技术》

文章信息/Info

Title:: A Study on Comprehensive Comparison of Route for the Second Line of Guizhou-Guangxi Railway

Author(s):: WEI Changxin; China Railway Eryuan Engineering Group Co., Ltd., Chengdu 610031, China

Keywords:: Guizhou-Guangxi Railway|second line|comprehensive comparison|existing line|scheme

摘要:: 本文以黔桂铁路增建二线为例,深入分析黔桂铁路2004年按照国铁Ⅰ级、单线预留复线电气化铁路扩能改造的资料,探讨复杂艰险山区铁路增建二线综合选线原则:宏观方案应根据项目功能定位、客货流特点,综合考虑运输组织、预留工程、工程投资等因素,合理确定增建二线与既有线相协调的主要技术标准;局部方案要充分考虑车站分布、重大不良地质、预留工程及环境敏感点等对线路方案的影响,从线路左右侧位置进行比选,并从开关站设计的灵活应用等方面进行研究,最终确定出安全、经济、合理的最优方案。

Abstract:: Taking the construction of the second line of Guizhou-Guangxi Railway as an example, the paper made an in-depth analysis of the data of capacity expansion and upgrading of Guizhou-Guangxi Railway in 2004 to a National Railway Class I electrified single-track railway with double-track conditions reserved, and discussed the principle of comprehensive comparison of route for the second line of complex and difficult mountainous railways: For the macro scheme, the main technical standards for coordination between the second line and the existing line shall be reasonably determined according to the functional orientation of the project, the characteristics of passenger and freight flows, and comprehensive consideration of transportation organization, reserved conditions, project investment, and other factors; for the local schemes, the impact of station distribution, major unfavorable geological conditions, reserved conditions, and environmental sensitive points on the route scheme shall be fully considered. The comparison between a new line on the left or right side of the existing line was carried out, and the flexible application of switchyard design was studied to finally determine the safe, economical and reasonable optimal scheme.