谈丁字路口改十字立交方案选型

Talking about the selection of the crossing interchange scheme for the T-junction

近年来,高铁迅速发展对城市发展带来的影响深刻而广泛,对湖北唯一不通动车的地级市——荆门而言更是具有重要意义。现有路网规划为配合高铁站选址也需作出一定调整,以荆门市西三环与尉迟恭路节点为例,探讨了丁字平交路口改十字立交的方案选型。改造前尉迟恭路与西三环交叉为丁字口平交道口,现因拟建高铁站拟选址位于其西侧,为远期交通考虑,延伸尉迟恭路形成十字交叉并考虑立交方案。以该节点平交改立交为背景,通过分析交通功能、用地控制、工程造价、控制性构筑物、近远期结合等因素,提出相应设计方案选型,可为类似项目提供借鉴。

In recent years,the rapid development of high-speed rail has a profound and extensive impact on urban development.It is of great significance to Jingmen,the only prefecture-level city in Hubei.The existing road network planning needs to make some adjustments in order to meet the site selection of the high-speed railway station.This paper takes the joints of the West Third Ring Road and the Yuchigong Road in Jingmen City as an example to discuss the selection of the scheme for changing the intersection of the T-level crossing.Before the renovation,the intersection of Yuchigong Road and West Third Ring Road was the intersection of Dingzikou.Now the proposed high-speed railway station is located on the west side of the proposed high-speed railway station.For the long-term traffic considerations,the extension of Yuchigong Road forms a cross and considers the interchange plan.Based on the analysis of traffic function,land use control,project cost,control structure,near-term and long-term integration,this paper proposes the selection of corresponding design schemes,which can provide reference for similar projects.