广州市马涌涌底调蓄系统工程设计

Design of Machong River Bottom Regulation System Project in Guangzhou City

广州市马涌流域采用截流式合流制排水系统,雨季溢流污染严重。为提升马涌水质,实施马涌涌底调蓄系统工程,雨季溢流污染收集目标设定为8~10 mm初期雨水。考虑到河涌两岸不具备建设调蓄设施的条件,且溢流口沿河涌呈线性分布,创新性地将4个调蓄池建设在河涌底部,并用大口径涌底管道串联起来,在沿途各溢流口设置入流井,可有效缓解马涌流域溢流污染。

The current drainage system of the Guangzhou Machong River basin was intercepting combined drainage system,and the overflow pollution was serious in rainy season.In order to improve the water quality of Machong River,the project of Machong River bottom regulation system was implemented,and the target of overflow pollution collection in rainy season is 8-10 mm initial rainwater.Because there were no conditions for the construction of storage facilities on both sides of the river,and the overflow outlets were linearly distributed along the river,four storage tanks were constructed in the bottom of the river,which was connected with large-diameter bottom pipes in series.Inflow wells were set at each overflow outlet,which can effectively alleviate the overflow pollution problem of Machong River basin.