潍坊市超大型调蓄池工艺设计与建设特点

Process Design and Construction Characteristics of Super Large Storage Tank in Weifang City

为控制流域溢流污染,潍坊市虞河下游新建超大型地下调蓄池,用于调蓄控制合流制径流污染和分流制径流污染。调蓄池总容积为22×10^4m^3,采用串联式蓄水模式,配备门式自冲洗、离子除臭等设施。详细介绍了工程的设计规模、设计参数与运行模式,重点介绍了串联式蓄水模式在狭长地带建设的适用性。为进一步降低工程造价,采用超长冲洗距离以减少冲洗设备数量。试运行结果显示,加大冲洗水量与冲洗势能,即使冲洗廊道长度达到100 m时,也能够达到良好的冲洗效果。目前调蓄池已稳定运行,能够有效调蓄水量,控制径流污染,改善城市环境。

In order to control the overflow pollution in the watershed,one new super large underground storage tank was built in the lower reaches of Yuhe River in Weifang City. It was used for controlling combined sewer overflow pollution and separate system runoff pollution. With a total volume of220 000 m^3,the storage tank adopted the mode of series water storage,equipped with gate-type selfwashing,ion deodorization and other facilities. The design scale,design parameters and operation mode of the project were introduced in detail,and the applicability of the mode of series water storage in the long and narrow area was introduced emphatically. In order to further reduce the project cost,an extra long washing distance was used to decrease washing equipment numbers. The test results indicated that it also got a well flushing effect by increasing the water amount and flushing potential energy,even though the flushing gallery distance reached 100 m. At present,the storage tank has been stable operation,which could effectively regulate water storage, control runoff pollution and improve the urban environment.