基于海绵城市理念的公园多目标融合策略研究——以某矿山公园建设为例

Research on Multi-objective Integration Strategy of Park Based on Sponge City Idea for Mine Park

海绵城市建设是缓解城市内涝的重要举措之一,能使城市具有良好的“弹性”和“韧性”。公园绿地是城市的重要公共空间,也是海绵城市建设的重要载体。“海绵20条”提出要重视多目标融合,公园绿地要统筹考虑周边雨水的消纳。通过SWOT分析,明确公园水安全、水生态、水环境和社会效益的目标,通过海绵城市建设统筹消纳了周边崖壁区和滑坡区的雨水,有效提高了区域排水防涝能力,减少了径流污染,并提升周边居民幸福感。研究表明:项目建成后年径流总量控制率大于90%,年径流污染总削减率达到62%,雨水系统全部达标,10处内涝积水点全部消除,并为周边居民构建了“15分钟健身圈”。为“十四五”新阶段的公园绿地海绵城市建设,提供了很好的技术借鉴。

Sponge city construction is one of the important measures to alleviate the urban waterlogging,which can make a city have good"elasticity"and"toughness".Park green space is an important public space of city,and also an important carrier of sponge city construction."Sponge 20"points out that the attention should be paid to the multi-objective integration,and the park green space should consider the surrounding rainwater consumption.Through SwOT analysis,the goals of water safety,water ecology,water environment and social benefits of the park are clarified.The construction of sponge cities completely plans and absorbs the rainwater from the surrounding cliff and landslide areas,which effectively improves the regional drainage and waterlogging prevention capacity,reduces the runoff pollution and improves the well-being of surrounding residents.The research shows that the total annual runoff control rate is greater than 90%after the completion of the project.The total reduction rate of annual runoff pollution can be reached 62%.All rainwater systems are up to standard.10 waterlogging points have been eliminated,and a"15-minute fitness circle"has been built for surrounding residents,which provides a good model and reference for the construction of park green sponge city in the new stage of"14th Five-Year Plan".