摘要
Abstract
In order to effectively relieve the pressure of urban rainwater discharge and enhance the ecological value of garden landscape,the rainwater utilization and discharge system design were deeply studied based on the upgrading and reconstruction project of community garden.Through the study,it is found that after using the new rainwater utilization and discharge system,the average collection efficiency of the rainwa-ter collection system is 89%,the average penetration efficiency of the infiltration system is 78%,the maximum flow rate of the discharge sys-tem is 6.8 m3/min,and the suspended matter content of rainwater treated by the purification device is reduced from 45 mg/L without treatment to 10 mg/L.Far better than the national standard of 30 mg/L.The rainwater utilization and drainage system of the project effectively promotes the natural accumulation and infiltration of rainwater and reduces the dependence of the ecological region on the municipal drainage system.关键词
海绵城市理念/园林雨水利用与排放系统/雨水循环Key words
Sponge city concept/Garden rainwater utilization and drainage system/Rainwater cycle分类
土木建筑
