【摘要】 入渗入流问题是城市污水管道普遍存在的问题，是城市污水管道和合流制管道雨天产生过载甚至溢流的主要原因之一。准确地计算入渗入流，并对其进行分析是诊断污水管网溢流，制定管网修复方案的基础。论文对入渗入流的分析方法进行了探讨，采用在线监测数据结合综合单位线法，对某小区的管网入渗入流进行了定量分析。结果表明，该区域入渗入流量较大，管道以入渗为主，时间持续约为18 h。该方法可有效模拟区域内的入渗入流问题，并对入流量和入渗量进行定量分析，计算结果为制定该区域管网排查和修复措施提供了决策依据。该研究为今后类似的工程提供了参考和借鉴。更多还原

【Abstract】 The problem of rainfall derived infiltration and inflow(RDII) is a common problem in urban sewage pipelines, and it is one of the main reasons for overload and even overflow of urban sewage pipelines and combined pipelines in rainy days. Accurately calculating and analyzing sanitary sewer overflows is the basis for diagnosing the overflow of the sewage pipe network and formulating the repair plan of the pipe network. The paper discussed the analysis method of RDII, and quantitatively analyzed the infiltration flow of the pipe network in a certain district by using the online monitoring data combined with the comprehensive unit line method. The results showed that RDII in this area was relatively large, and the pipeline is dominated by infiltration, which lasts for about 18 hours.The method can effectively simulate RDII problems in the area, and quantitatively analyze the inflow and infiltration volume. The calculation results provide a decision-making basis for the formulation of the investigation and repair measures of the pipeline network in this area. This research provides a reference and reference for similar projects in the future.更多还原