摘要
现阶段城市内涝的主要原因是工程体系不完善和针对超标准暴雨的应急体系缺失所导致的城市内涝防治系统韧性不足。为了解决源头、中途与末端3环节之间的调蓄与排放规模协调路径不清晰的焦点问题,从城市内涝防治系统的韧性内涵入手,分析了城市内涝防治工程体系的建设内容,提出了城市蓄涝工程体系的架构与优化思路。主要结论有:城市蓄涝工程体系的韧性建设,是提升城市防涝能力的有效途径,是韧性城市建设的重要一环,非常规蓄涝工程体系是城市内涝防治韧性的重要来源之一;要基于与城市内涝防治设计重现期相对应的设计暴雨汇流与排水排涝进程,依据雨洪峰值期的城市内涝防治系统“排蓄关系”的衔接程度,来评估市政排水与水利排涝系统的能力是否协调;在城市蓄涝工程建设时,要聚焦体系中各个子系统之间的影响机制,寻求各个环节不同类型的治涝设施之间的协调路径,最大限度地减轻子系统之间的相互制约。理清了城市蓄涝工程体系的架构,明确了相关管理部门的职责,提出了蓄涝工程子系统规划设计与运行调度的协调路径,有助于“蓄涝工程体系”的系统性构建。
At present,the main causes of urban waterlogging are that the standard engineering system doesn’t meet the expected functions and the emergency system for excessive rainstorm isn’t be well organized,which lead to the lack of resilience of the system for urban flooding prevention and control(UFPC).In order to solve the focus problem of unclear coordination path between regulation,storage and discharge among the three links of source,midway and end,starting from the resilience connotation of urban waterlogging prevention and control system,this paper analyzes the construction content of urban waterlogging prevention and control engineering system,and puts forward the structure and optimization idea of urban waterlogging prevention and control engineering system.The main conclusions are as follows:(1)The construction of"resilience"of urban engineering system for waterlogging and storage(ESWS)is an effective way to improve urban waterlogging prevention capacity and an important part of resilient city.Unconventional ESWS is one of the important sources to provide"resilience"for UFPC.(2)It is necessary to evaluate whether the capacity of municipal drainage and regional flood drainage is coordinated based on the process of runoff formation and drainage and the coordination degree of"drainage and storage relationship"in the peak period of rainstorm,the design return period of which is consistent with the design standard of the system for UFPC.(3)In the construction of urban waterlogging engineering,it is necessary to focus on the influence mechanism between each subsystem,seek the coordination path between different types of waterlogging control facilities in each link,and minimize the mutual restriction between subsystems.In this paper,the structure of urban ESWS is clarified,and the responsibilities of relevant departments are clearly divided,which can improve the coordination of planning,design and operation scheduling of each waterlogging engineering subsystem.
作者
唐明
吴宇泽
谢千辰
李燕磊
邹鉒
TANG Ming;WU Yuze;XIE Qianchen;LI Yanlei;ZOU Zhu(School of Hydraulic&Ecological Engineering,Nanchang Institute of Technology,Nanchang 330099;Jiangxi Key Laboratory of Hydrology-Water Resources and Water Environment,Nanchang 330099)
出处
《中国防汛抗旱》
2023年第1期67-73,84,共8页
China Flood & Drought Management
基金
江西省“科技+水利”联合计划重大项目(2022KSG01007)。
关键词
韧性
蓄涝工程体系
城市内涝防治
协调路径
优化
resilience
engineering system for waterlogging and storage(ESWS)
urban flooding prevention and control(UFPC)
coordination path
optimization
