Design of Heavy Rain Events and Rain Patterns in Yingtan City
The analysis of rainstorm intensity and rain pattern under different rainfall recurrence periods is of great significance for sponge city planning and urban drainage engineering design.In this paper,the variation of rainstorm intensity and rain pattern under different rainfall recurrence periods in Yingtan City is studied by using the calculation formula of rainstorm intensity and Chicago rain pattern analysis method.The results show that:(1)The rainfall recurrence period will significantly affect the initial rainfall in the study area.(2)The rain pattern in the study area showed a trend of first increasing and then decreasing,and the rain peak appeared at the 48min of rainfall duration.The research results have a certain reference value for understanding the difference of rainstorm intensity and rain pattern change under different rainstorm recurrence periods,and can provide basic theoretical guidance for urban sponge city planning and urban drainage system engineering design.
Rainstorm intensityRain pattern analysisRain peakDrainage system
NETL
NSTL
万方数据
维普
