山区高速铁路跨江河大桥方案研究  

Study on the Scheme of River Crossing Bridge for High Speed Railway in Mountainous Area

作　　者：何一凡 HE Yifan(China Railway Siyuan Group Nanning Survey and Design Institute Co.,Ltd,Nanning,Guangxi,530029,China)

机构地区：[1]中铁四院集团南宁勘察设计院有限公司,广西南宁530029

出　　处：《铁道运营技术》2024年第1期35-38,共4页Railway Operation Technology

摘　　要：山区高速铁路地势起伏,选线控制因素多,铁路跨江河大桥需在已定线路大方向前提下结合桥位情况,采用地质、水文、孔跨条件最优的桥位。以南宁至深圳铁路容县北流河特大桥为例,研究分析了跨江河处孔跨选择思路与桥式设计方案的情况,通过研究得出,设计方案时应根据地面起伏、河流形态、通航条件、地质特点、工程预算等各方面全面比选确定,方能得到最经济合理的设计方案。Under the premise that the general direction of the line has been determined,the optimal bridge location should be determined by considering geology,hydrology,hole span and other conditions.Taking the Rongxian Beiliuhe extra long bridge of Nanning-Shenzhen Railway as an example,the paper studies the idea of hole span selection and bridge type at the river crossing,and considers the ground relief,river form,navigation conditions,geological characteristics,engineering budget and other factors to carry out a comprehensive scheme comparison and selection,and finally determines the most economical and optimal design scheme.

关 键 词：山区高速铁路 跨江河大桥 桥址选位 

分 类 号：U24[交通运输工程—道路与铁道工程]