城市复杂条件下过江通道桥隧方案比选研究——以宁波市四明路跨奉化江通道为例

Comparison and Study on Bridge and Tunnel Schemes for Cross-river Channels under Complex Urban Conditions in Ningbo

随着城市化进程的加快,城市过江通道规划的数量越来越多。在城市建成区内,过江通道的建设条件越来越复杂,通常要处理好过江通道与交通路网、地块开发、地铁建设、河道通航等重要制约因素的之间的关系。过江通道在桥隧形式上各有利弊,以宁波市四明路跨奉化江通道为例,分别研究了桥梁、隧道过江方案的总体布置,桥隧方案与地铁的关系,通过对桥隧方案各自的优缺点进行对比分析,得出了采用桥梁方式过江为最优方案,为类似过江通道工程提供借鉴。

With the acceleration of urbanization,there are a growing number of urban cross-river channels to be planned.In the urban built-up areas,the construction conditions of the cross-river channels have become more complex.Generally,the relationship among the cross-river channel,the traffic network,land development,subway construction,river navigation and other significant constraints should be treated with caution.There are the advantages and disadvantages of cross-river channels on the types of bridge and tunnel.Taking the channel crossing Fenghua River in Siming Road of Ningbo as an example,the overall layouts of the bridge and tunnel cross-river schemes are studied separately.And the relationship between the bridge-tunnel scheme and the subway is analyzed.After the comparison and analysis on the advantages and disadvantages of the bridge and tunnel schemes,the conclusion is that the bridge mode crossing river is the best scheme,which provides the reference for the similar cross-river channel projects.