城市污水管道入流入渗监测技术研究与应用进展

STUDY ON FIELD MONITORING TECHNOLOGY FOR URBAN DRAINAGE NETWORK SYSTEM MANAGEMENT

入流和入渗(inflow and infiltration)会导致管道中水量超过设计水量,是导致污水管道溢流的主要原因。由于管道埋藏于地下,入流和入渗时间和位置随机性强,难于及时发现入流和入渗的位置和原因。目前国外的排水研究和管理人员利用在线监测技术获取了大量的监测数据,分析水量变化规律,并利用烟道测试等检测手段寻找入流入渗源。对排水管道入流入渗的监测和数据分析技术及在实际管理中的应用手段进行了综述,并以国内某城市实际监测数据为例进行入流入渗的分析,可为国内排水管网监控管理提供借鉴。

Inflow and infiltration resulted in the actual volume exceeding the design flow, which causes the sanitary sewer overflow （SSO）. Pipelines were buried under the ground with a strong randomness of time and location of inflow and infiltration, so it was difficult to find the locations and administrators obtained vast quantities of monitoring data, caused of inflow and infiltration. The foreign researchers and analyzed flow patterns, and found the source of inflow and infiltration using smoke testing. The monitoring and analysis technology of inflow and infiltration, as well as the application, were reviewed, which provided reference for domestic sewer network monitoring and management.