郊野公园雨水收集利用系统分析与设计——以三十岗郊野公园为例

郊野公园设计过程中需在系统性生态理念指导下,根据项目内的水系和地形条件设计雨水收集系统,结合实际项目需要选择合理的方案进行回用,达到经济效益及生态效益。经案例分析水量平衡体系、实现了良好的雨洪调蓄功能。景观水体的补水优先取自项目内收集回用的雨水,实现局部生态循环补水。在汇水坡面整齐、水塘较多的项目背景下,进行局部水系规划,建立一个清晰的标高体系,并且分析不同运行条件下的水流方式,通过水平衡计算分析雨水资源优化利用效益,提出雨水收集利用方案。

Analysis and Design of Rainwater Collection and Utilization System in Sanshigang Country Park

According to the water system and topographic conditions in the project, the rainwater collection system of a country park should be designed under the guidance of systematic ecological idea in the design process. Combined with the actual project needs, the reasonable scheme is selected for reuse in order to achieve the economic benefit and ecologic benefit. Through the case analysis of water balance system, a good function of rainfall flood regulation and storage is realized. The water replenishment of landscape water takes priority from the collected and reused rainwater in the project to realize the local ecological cycle water replenishment. Under the project background of tidy catchment slope and many ponds, the local water system is planned to establish a clear elevation system. The water flow modes under the different operation conditions are analyzed. The optimal utilization efficiency of rainwater resources is analyzed through the water balance calculation. The rainwater collection and utilization scheme is proposed.