公轨共建一体化高架总体布局研究

Study on Overall Layout of Integrated Elevated Co-construction for Expressway and Rail Transit

摘要:

随着城市综合交通需求的发展，在城市建成区交通廊道资源紧张、快速轨道交通和快速路存在共通道的情况下，结合一体化高架工程案例分析，对公轨共建平层、叠层的工程案例和总体布局形式进行研究。对标准段、车站段展开了分析，从交通功能、占地宽带、结构高度、城市景观、环境影响、运营安全、施工期间的影响等方面进行了优缺点分析，提出了公轨共建一体化总体最优布局方案。方案能够适合于城市建成区长距离共建的工况，可提高城市空间的综合利用，实现两项工程综合效益最优的目标。最后对叠层布置方案提出了进一步优化的技术方向。

Abstract:

With the development of urban comprehensive transportation demand, in the context where the resources of transportation corridors in urban built-up areas are tight and there are common lanes between rapid rail transit and expressways, and combined with the case analysis of integrated elevated project, research is conducted on the engineering cases and overall layout forms of co-construct flat and stacked expressways and rapid rail transits. The analysis is conducted on the standard section and the station section. The advantages and disadvantages are analyzed from the aspects of traffic functions, land broadband, structural height, urban landscape, environmental impact, operational safety and construction period effects. An overall optimal layout scheme for the integrated co-construction of expressway and rail transit is proposed. This scheme can be suitable for the long-distance co-construction in the urban built-up area, and can enhance the comprehensive utilization of urban space, which achieves the goal of optimizing the comprehensive benefits of the two projects. The technical direction for further optimization of the stacked layout scheme is proposed.