京张高铁五环内建设方案研究

京张高铁东起北京北站,途经北京市海淀区、昌平区和延庆县,由延庆县入河北省境内,西迄张家口市,新建正线全长174 km。京张高铁沿既有京包铁路通道北行,与学院南路、北三环、知春路、北四环、成府路、双清路、地铁10号线、地铁12号线等多条道路和地铁交叉,且线路两侧分布有密集的建筑物。因此,线路敷设方式需结合拆迁、工程投资以及噪声等环境敏感因素综合确定。经综合对比分析,从减小对环境的影响和节约土地资源、有利于加快项目顺利推进的角度考虑,最终推荐采用地下方案。

Study on Alignment Schemes of Beijing-Zhangjiakou High-speed Railway Inside the Fifth Ring Road of Beijing

Beijing-Zhangjiakou High-speed Railway starts from Beijing North Railway Station to Zhangjiakou passing through Haidian District,Changping District and Yanqing County in Beijing,with a length of 174 km.It heads north along the existing Beijing-Baotou rail,intersecting with several roads and subways such as Xueyuan South Road,North Third Ring Road,Zhichun Road,North Fourth Ring Road,Chengfu Road,Shuangqing Road,Metro Line 10 and Line 12,with dense buildings on both sides. Thus,line laying methods need comprehensive consideration of environmentally sensitive factors such as demolition,engineering costs and noise. Underground line plan is finally recommended through comprehensive analysis in aspects of environmental impact reduction,land resource savings and smooth promotion of the project.