中国城市绿道雨洪管理研究(英文)

为提高城市绿道的雨洪调节功能,在文献研究和案例分析基础上,首先对城市绿道与低影响开发、绿色雨水基础设施的关系进行了分析.然后,提出了基于雨洪调节功能的城市绿道分类系统,总结适用于不同类型绿道的雨洪控制利用技术措施.结合中国城市规划体系,提出了与城市排水系统相结合的绿道规划方法,以及绿道雨水系统和单项雨水设施的设计方法,探讨了绿道雨水系统在入流、竖向、溢流等方面与其他系统的衔接关系.最后,介绍了上述规划设计方法在嘉兴滨水绿道和道路绿道示范项目中的应用,结果表明雨洪控制利用系统对年径流总量和年均污染物总量(TSS)的削减率分别不低于30%和40%.

Stormwater management of urban greenway in China

In order to improve the stormwater regulation functions of urban greenways on the basis of literature research and case study the relationships between urban greenway and low impact development LID and green stormwater infrastructure GSI are analyzed. Then the classification system of urban greenways is proposed based on their stormwater regulation function and the suitable technical measures for stormwater management which can be used in different kinds of greenways are selected. According to China’s urban planning system the greenway planning method combined with the urban drainage system is developed and the design methods of the greenway stormwater system and individual stormwater facilities are put forward. The relationships between the greenway stormwater system and other systems are also analyzed in terms of stormwater inlet vertical design and overflow.Finally the waterfront greenway and street greenway demonstration projects in Jiaxing City which adopts the above concept and method are introduced. The results show that the reduction rates of annual total stormwater runoff and average total runoff contaminants TSS of the stormwater system are not less than 30% and 40% respectively.