临沂市海绵城市建设中雨水回收系统设计:以东风东关片区改造为例

以山东省临沂市东风东关片区改造为例,将海绵城市建设要求融入到园林景观建设中。通过对临沂当地降雨量的分析,制定区域降雨控制管理目标,采取了屋顶绿化、透水铺装、下凹式绿地、植草沟、渗井渗管、车库顶板处理、雨水回收利用系统和植物绿化等措施。雨水回收利用系统工程完成后,通过夏季的几场大到暴雨的检验,实现降雨后片区道路雨水下渗明显、无积水,基本达到规划设计的目标要求,该方法将有助于海绵城市在临沂市的推广应用。

The Design of Rainwater Collection in Building a Sponge City of Linyi: A Case Study of Dongfeng Dongguan District Redevelopment

The redevelopment of Dongfeng Dongguan district of Linyi City was taken as an example to indicate the requirement for integration of building sponge city into gardening and landscaping. According to the local rainfall in the district, a district rainfall control and management goal was developed, which will take measures like roof greening, permeable pavement, sunken green areas, grass growing ditches, seepage wells and pipes, garage roof treatment, rainwater collection systems and growing plants. After the completion of the rainwater collection and reuse project, the system has been tested by a few heavy rains during the summer, the rainwater was quickly infiltrated on the roads in the district and no water-logging was occurred, achieving the objectives of the planning and design requirements. The measures will help to extend applications of the concept of building sponge city in Linyi.