多路交叉的凤凰山枢纽互通式立交方案选型设计

Type Selection Design of Interchange Scheme for Multiway Intersection of Fenghuangshan Hub Interchange

为探讨多路交叉复杂路况下互通式立体交叉方案选型设计新的思路,论文结合武阳高速凤凰山枢纽互通设计方案的工程实例,通过多方案对比论证的方法,提出了关于城市环线高速与放射线高速、城市主干道多路交叉复合式互通设计时,采用的分等级强、弱化节点的交叉形式;主线收费站与匝道收费站错位设置;对既有高速改扩建的主线进行适当改线挤压出互通布设空间等简化优化的新设计思路。

In order to explore a new idea for the selection and design of interchange schemes under complicated road conditions,this paper,combining with the engineering example of the interchange design scheme of Fenghuang Mountain Hub of Wuyang Expressway,puts forward the intersection form with strong grading and weak nodes in the composite interchange design of urban loop expressway and radial expressway and urban trunk road.Main line toll station and ramp toll station are misplaced;New design ideas of simplification and optimization,such as properly rerouting the main line of existing high-speed reconstruction and expansion,and squeezing out the intercommunication layout space,etc.