ZHOU Guo-hua,GE Tong-gang,SHANG Wei,et al.Construction and Operation of Ganluxi Sponge Park in Sino-Singapore Tianjin Eco-city[J].China Water & Wastewater,2020,36(24):134-139.
中新天津生态城甘露溪公园海绵建设与运行总结
- Title:
- Construction and Operation of Ganluxi Sponge Park in Sino-Singapore Tianjin Eco-city
- Keywords:
- sponge city; Sino-Singapore Tianjin Eco-city; Ganluxi Park
- 摘要:
- 甘露溪公园是中新生态城海绵城市建设试点区内的公园绿地类标志性项目之一。原方案目标聚焦景观功能，与滨海盐碱区海绵城市建设要求相比，技术针对性不强。鉴于公园周边市政道路围绕的环境条件，明确其道路雨水污染控制与利用的海绵建设目标；据此，将原方案分别设置在公园两侧两个独立的景观水塘，通过生态沟渠连通，增设水循环及沿程分散式小型雨水净化池，形成多类型断面的景观水系；根据地形地貌，将东侧的水塘设置成台地式雨水湿塘等。工程建成后，区域人居环境得到根本改善，经2019年4月—8月多场降雨过程实测，公园海绵设施系统可消纳最大日55.6 mm的降雨，对周边道路雨水径流SS、COD的平均去除率分别达到81.6%、77.7%，基本实现了项目海绵城市建设要求。
- Abstract:
- Ganluxi Park is one of the landmark green space projects in the sponge city construction pilot area of Sino-Singapore Tianjin Eco-city. The objective of the original plan focused on the landscape function, and its technical pertinence was not sufficient compared with the construction requirements of sponge city in coastal saline alkali areas. Given that Ganluxi Park was surrounded by roads, the sponge construction objectives of pollution control and road runoff utilization was defined. Accordingly, the original scheme is respectively set up in two independent landscape ponds on both sides of the park and connected by ecological ditches. The water circulation and dispersed-type small stormwater purification ponds are added along the way, thus the landscape water system with multiple sections was formed. The pond on the east side is set up as a platform-type wet pond according to the topography. After the completion of the project, the regional human settlements have been fundamentally improved. According to the rainfall measurements from April to August 2019, the maximum daily rainfall of 55.6 mm can be absorbed by the sponge facility system in the park, and on average 81.6% of SS and 77.7% of COD were removed from runoff of the surrounding roads, which basically realizes the requirements of the sponge city construction project.
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