Safety Guarantee Technology for Shanghai's Major Raw Water Single Line Canal
The raw water system in Shanghai is generally complete.The three major land-based raw water systems have initially achieved partial complementarity in capabilities,but they still face risks and challenges.In view of the local risks in the raw water supply system,this paper constructed a set of risk assessment method for pipelines and channels suitable for the characteristics of raw water supply system which divided the risk assessment levels into five levels.By applying the risk assessment method,the risk levels of major raw water pipelines and channels in Shanghai were clarified,and in-situ repair technology was proposed.In view of the accident of single line raw water pipelines and channels,the support capabilities of the backup water source and the on-site water intake were analyzed.Based on this,in view of the typical water treatment plants(WTPs)supplied by single pipeline in the central city,this paper proposed that based on the planned raw water pattern in Shanghai,the raw water safety assurance optimization approach was implementing double line of raw water supply,combined with on-site water intake and drinking water dispatching.Therefore,based on the actual situation of WTPs supplied by single pipeline such as Changqiao WTP,Yangshupu WTP(including Jujiaqiao WTP),and Nanshi WTP,this paper proposed customized safety assurance measures and implementation strategies for the raw water supply.
raw water systemsingle line pipe and channelpipeline safety assessmentsafety assurance technologyin-situ repair
国家科技期刊平台
NSTL
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