桥梁项目海绵城市设计策略研究

Research on Design Strategy of Sponge City for Bridge Project

摘要:

针对现有排水工程及海绵城市建设技术标准体系中对桥梁海绵城市建设的技术指引不完善、桥梁海绵城市设计指标不明确等问题，提出了结合桥梁的绿地率确定桥梁工程海绵城市设计指标值的方法，同时结合桥梁海绵城市实践经验，对不同类型桥梁的径流路径以及不同类型桥梁的海绵设施的布局策略给出了建议，并给出了桥梁海绵设施设计节点的相关要求。对于跨敏感河流段并设有事故池的跨河桥梁，重点介绍了其海绵城市与事故池综合设计的技术指引。

Abstract:

Aiming at the problems in the current technical standard system for drainage engineering and sponge city construction, such as the incomplete technical guidance for the construction of sponge cities for bridges and the unclear design indicators of sponge cities for bridges, a method for determining the design index value of sponge city for bridge engineering in combination with the green space ratio of the bridge is proposed. At the same time, based on the practical experience of sponge cities for bridges, the suggestions are given for the runoff paths of different types of bridges and the layout strategies of sponge facilities for different types of bridges. And the relevant requirements for the design nodes of bridge sponge facilities are given. For the river-crossing bridges spanning sensitive river sections and equipped with accident pools, the technical guidelines for the comprehensive design of sponge cities and accident pools are emphatically introduced.