摘要
中渝国际都会项目的实施,将使新牌坊地区吸引大量人流和车流,新牌坊立交无法满足未来交通需求,亟需实施改造。文章以节约城市空间为理念,以增加立交通行能力为目的,充分考虑区域路网、立交现状和周围建筑物等条件,提出三个以新增地下匝道为主的改造方案,探讨新牌坊立交改造的其他可能性。从交通功能、占地面积、工程规模和工程实施难度等方面进行方案比选,最终得出新增环圈匝道方案不仅能缓解交通压力,还能节省用地,是优选方案,并对优选方案的隧道进行设计,可为城市地下立交的改造或新建工程提供参考。
Chongqing International Midtown Project will attract a large number of people and vehicles to Xinpaifang Area.So,Xinpaifang Interchange may not meet the traffic demand in the future and should be reconstructed urgently.In this paper,the concept of saving urban space was adopted to improve the traffic capacity of the Interchange and the cases of regional road network,interchange status and surrounding buildings were taken into full consideration to propose three reconstruction schemes based on new underground ramps so as to investigate other possibilities for reconstruction of new Xinpaifang Interchange.The schemes were compared and selected from the aspects of traffic function,floor area,scale and construction difficulty of the Project.Finally,it was concluded that the scheme with additional ring ramps can not only alleviate the traffic pressure,but also save land and should be the preferred scheme.Moreover,the tunnel of the preferred scheme was designed to provide a reference for reconstruction or construction works of urban underground interchanges.
作者
许声涯
陈首超
徐湃
程作洋
XU Shengya;CHEN Shouchao;XU Pai;CHENG Zuoyang(School of Civil Engineering,Chongqing Jiaotong University,Chongqing 400074;State Key Laboratory of Mountain Bridge and Tunnel Engineering,Chongqing 400074;China Railway Changjiang Transport Design Group Co.,Ltd.,Chongqing 401121)
出处
《现代隧道技术》
CSCD
北大核心
2021年第S01期342-348,共7页
Modern Tunnelling Technology
关键词
立交改造
地下立交
地下匝道
隧道设计
Interchange reconstruction
Underground interchange
Underground ramp
Tunnel design
