【摘要】 以防灾避险公园海绵化改造工程为背景,以年径流总量控制率、污染物总量控制率为总目标,针对防灾避险公园海绵化改造制订改造方案。海绵化改造主要以低影响开发改造为主,运用Infoworks ICM软件对公园构建传统开发模型和低影响开发(LID)模型,针对ICM中LID设施模块,对模型中的LID设施设计进行布局、规划等。结果表明,在公园内应用一定规模的LID设施(透水铺装、植草沟、雨水花园和绿色屋顶分别占公园总面积的9.8%,1.6%,4.7%和0.2%,总计约为16.3%),公园可达到预期目标;对比于传统模式,LID设施的加入有效提高了年径流总量控制率和污染总量控制率。更多还原

【Abstract】 With disaster prevention and risk reduction as the engineering background, taking the total annual runoff control rate and total pollutant control rate as the overall target, the reconstruction plan was made for the sponge transformation of the park. The sponge transformation mainly focuses on low-impact development and transformation. Using Infoworks ICM software to construct traditional development model and low impact development(LID) model for parks, for the LID facility module in ICM, layout and planning for LID facility design in the model. The simulation results show that LID facilities of certain scale(permeable pavement, grass ditch,rainwater garden and green roof account for about 9.8%, 1.6%, 4.7% and 0.2% of the total area of the park respectively, with a total of about 16.3%) are applied in the park, the park can achieve the desired objectives;compared with the traditional model, the addition of LID effectively improves the annual runoff and pollution control rates.更多还原