本文基于上海市供水管网现状资料的分析,按照管龄、管材和质量问题、管径、接口形式、温差、外来施工损坏等情况和地质灾害等等,揭示影响管网安全的主要因素。提出管网安全评估的基本指标。按照“统筹规划、突出重点”的原则,分析供水管网改造措施的可行性并提出确保管网设计与施工质量的对策措施,以确保城市供水安全。 Based on the analysis of the present situation of water supply network in Shanghai, this paper reveals the main factors that affect the safety of the pipe network in terms of pipe age, pipe and quality, pipe diameter, interface form, temperature difference, external construction damage and geological disasters. Put forward the basic indicators of safety assessment of pipe network. In accordance with the principle of “overall planning and stressing key points”, the feasibility of retrofitting water supply network is analyzed and countermeasures are put forward to ensure the design and construction quality of the network to ensure the safety of urban water supply.