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多路交叉口立交的降维设计--天津市外环线津汉立交总体设计 预览

Dimension Reduction Design of Interchange at Multi-Way Intersection: Overall Design of Jinhan Interchange of Tianjin Outer-Ring Line
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摘要 与常规立交相比,多路立交交通流向多、立交形式没有固定模式可参考、设计难度大。如果仅根据交通流向设置对应数量的匝道,则立交体量巨大,受周边条件制约不允许设置。如何确定匝道数量,采用何种形式的匝道,是多路交叉口立交设计的关键。结合天津市外环线津汉立交设计,提出一种多路交叉口复杂枢纽型立交的设计模式,有利于理清思路,降低设计难度,可供类似项目参考。 Compared with conventional interchanges, multi-way interchanges have more traffic flow directions without fixed interchange mode as references, and they are difficult to design. If only a corresponding number of ramps are set according to the direction of traffic flow, the volume of interchanges is huge, and it is not allowed to be set due to the constraints of surrounding conditions. How to determine the number and type of ramps is the key to the design of multi-way intersections. Combined with the design of Jinhan Interchange of Tianjin Outer-Ring Line, a design mode of complex junction interchange at multi-way intersection is proposed, which is helpful to clarify ideas and reduce design difficulty, and can be used as references for similar projects.
作者 张震山 ZHANG Zhen-shan(Shanghai Urban Construction Design & Research Institute (Group) Co.,Ltd.,Shanghai 200125,China)
出处 《中国市政工程》 2019年第5期38-41,104共5页 China Municipal Engineering
关键词 多路 交叉口 立交 降维 multi-way intersection interchange dimension reduction
作者简介 张震山(1975-),男,高级工程师,硕士,主要从事市政道路交通设计工作。
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