广州—湛江高速铁路宏观走向方案研究

Research on General Routing Scheme of Guangzhou-Zhanjiang HSR

广州—湛江高速铁路是国家“八纵八横”高速铁路网,350km/h沿海铁路客运大通道的重要组成部分。线路途经区域机场、城市经济据点星罗棋布,通道内既有广茂铁路为普速单线铁路、深湛铁路为200km/h客货共线铁路,规划南宁—深圳高速铁路局部与本线共通道。结合沿线经济据点和工程控制因素提出4个宏观走向方案,并从经济指标、吸引客流、规划符合性、路网布局、地形地质条件、线路顺直性、运营时间7个方面进行综合分析,科学合理地确定了整体效益最优的中线方案,并对广东省“十四五”铁路网规划进行了调整。研究思路、方法和成果可为类似铁路项目宏观走向方案研究提供借鉴。

Guangzhou-Zhanjiang HSR constitutes an important part of the 350 km/h coastal corridor in China’s“Eight North-South and Eight East-West”HSR network.Running through regional airports and economic clusters,the line integrates conventional single-track railway(Guangzhou-Maoming Railway),200 km/h mixed passenger and freight railway(Shenzhen-Zhanjiang Railway),as well as the joint section in plan with Nanning Shenzhen HSR.This paper puts forward 4 general routing schemes and looks into 7 factors for a comprehensive analysis,economic indicators,passenger attractiveness,planning compliance,railway network layout,topographical and geological conditions,track regularity and operation time,so as to identify the most favorable alignment scheme overall.In light of the study results,the railway department of Guangdong Province has also made adjustments to the network plan of Guangdong Province developed under the framework of the“14th Five-Year Plan”.The research ideas,methods and achievements are of reference to future study of the field.