The detention basin is an important urban flood control infrastructure.It has a wide application foundation in China,but it still lacks detailed and effective planning and design meth-ods.This paper summarizes the practical experience,combined with the design case,introduces the typical structure and working principle of the detention basin,develop a planning method of"outflow control and runoff flow loading",and introduces the design method including basin sizing and hydraulic calculation of the outlet work.SWMM has reached 85%of the total annual runoff control.It has effectively reduced the peak flow volume for 1 year,3 year,10 year and 100 year flood to restore the pre-development level.China needs to speed up theimprovement of design crite-ria for the dual use detention basin,the level of planning and construction of the infrastructure for both storage and drainage in order to strengthen the urban resilience.
关键词
滞涝池/典型构造/规划设计方法/案例研究
Key words
Detention basin/Typical structure/Planning and design methods/Case study