轨道交通徐家汇枢纽站方案研究

Study of the Scheme of Xu Jia Hui Hub Station for Rail Traffic

轨道交通R1、R3、R4在徐家汇广场形成大型换乘枢纽 ,通过对节点区域R3、R4的线路走向的研究 ,提出了R3、R4线与规划一致或局部调整规划的两类线路走向 ,推荐的R3、R4线路畅通 ,可与R1形成理想的枢纽站方案。提出了节点换乘、平行换乘及通道换乘三类总体方案。同时还对交叉口区域的车站结构施工方法进行了研究 ,提出了广场无开挖施工方案 ,利用既有R1 及两侧地下商场结构作为天然盖板的盖挖法施工 ,可保证施工期间交叉口的通行能力 ,保持交叉口及周边道路的机动车道数不变 。

Rail traffic line R1,R3,and R4 form a large scale change and ride hub at Xu Jia Hui Square. Through the study of hub station scheme, two kinds of route alignment are recommended for line R3 and R4 at the node area. Three kinds of change and ride scheme are advanced and analysed, i.e.change and ride at node area, parallel change and ride, and change and ride through passage. Besides, the station construction methods used at intersection area are also discussed. It is suggested that the station structures of line R3 and R4 can be combined with the existing station structure of line R1, then the construction scheme of utilizing the existing structure as natural cover plate and excavation can be adopted, so that the traffic copacity at the intersection during construction can be guaranteed. Besides, through suitably organizing the traffic, the number of motor vehicle lanes on the intersection and surrounding roads, and the width of sidewalk can remain unchanged.