Stormwater Management Program Simulation Study On A Residential Area In Beijing

With the accelerated process of urbanization and the area of impervious increasing, therainfall flood in city and non-point pollution had become increasingly prominent. TheSWMM was used to simulate the stormwater management program constructed in one ofecological residential quarter in Beijing. Referred to simulating coefficient of domestic andinternational model and generalized the researched area, a calculation model was built for thearea. Based on the stormwater intensity formula in local, used the Chicago rainfall processlined method, different return period2hours rainfall process schedule distribution and thedesigned rainfall for simulation was got. The sensitivity analysis of the hydrologicalparameters in SWMM model was based on measured rainfall data. According to the actualmonitoring of rainfall data, rainfall runoff flow and runoff water quality to calibrating theparameters of hydrological and water quality in the model, the suitable model parameters forthe study regional was obtained. Through the calibrated parameters, the effect of differentcombination of stormwater management program in study area was simulated.