城市公园海绵城市设计探讨——以桂湾公园为例

Discussion on Sponge City Design of Urban Parks for Guiwan Park

摘要:

随着经济和社会的发展，海绵城市的建设越来越重要。在深圳前海桂湾公园的设计中，依据海绵城市理念，构建自然降水、地表水和地下水的系统性水管理。削减了85%的年径流总量，降低了面源污染。综合应用低影响开发设施，对桂湾河区域雨洪的净化、收集、下渗与再利用，达到最小影响场地开发前的水文特征。提升生态价值的同时，结合景观设计提升场地美学价值。应用透水铺装、下沉式绿地、生态草沟、雨水花园、碎石沟、淡水湿地、海水湿地以及雨水回用设施等低影响开发设施，合理布局，纳入景观系统统一规划设计。为其他城市公园的海绵城市设计提供了有益的参考。

Abstract:

With the development of economy and society, the construction of sponge city is becoming more and more important. In the design of Guiwan Park in Shenzhen, the systematic water management of natural precipitation, surface water and groundwater is built according to the concept of sponge city. The total annual runoff is reduced by 85% and the non-point source pollution is reduced. The low-impact development facilities is comprehensively used to purify, collect, infiltrate and reuse the rainwater and flood in the area of Guiwan River in order to achieve the hydrologic characteristics with minimal impact before site development. At the same time of promoting the ecological value, the aesthetic value of the site should be improved by the landscape design. The low-impact development facilities such as permeable pavement, sunken green land, ecological grass drain, rainwater garden, gravel drain, fresh-water wetland and seawater wetland, rainwater recycling facilities are used, reasonably designed and brought into integrated planning design of landscape system, which provides a useful reference for the sponge city design of other urban parks.