Urban Rainwater Management Based on Rainfall Process Analysis
This paper analyzes the guiding role of Changsha rainstorm intensity formula and Chicago rainstorm pattern in rainwater pipeline design.It is found that under the same standard of the peak rainfall and overload rainfall duration,the calculated values of rainstorm intensity formula are higher than those of Chicago rainstorm pattern.The rainstorm has the characteristics of concentrated intensity and uneven time distribution.The construction of overloaded rainfall regulation and storage facilities is more conducive to alleviating urban waterlogging than improving the construction standards of rainwater pipelines.The rainwater management mode of low-standard rainwater pipelines+peak value regulation and storage is more flexible.
rainwater pipelinerainfall process analysisrainstorm intensity formulaChicago rainstorm pattern
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