郑州新区污水厂厂外管道工程溢流井设计方案与计算

Design Scheme and Calculation of Engineering Overflow Well for External Pipeline of New Area Wastewater Treatment Plant in Zhengzhou City

为缓解污水管道紧急状况时的压力,在管道沿线临河处设置溢流井,必要时向河道溢流污水。在溢流井内部设置溢流堰,运用适当的薄壁堰和满管流水力计算公式,基于河流水文资料和管道流量试算堰高和紧急水位。将紧急水位绘制成线可分析管道紧急状态下沿线各检查井的状态。

In order to relieve the pressure of sewage pipe in the emergent situation,the overflow well is constructed near the river along the pipeline to overflow the sewage into the river if necessary.The overflow weir is set up within the overflow well.Based on the river hydrological data and the pipeline flow,the suitable calculation formula of thin-wall weir and full flow capacity is used to test and calculate the weir height and the emergent water level.To draw the emergent water level as a line can analyze the status of manholes along the pipeline in the emergency condition.