Accident Rate-Based Lifecycle Operational Reliability of Urban Water DistributionNetworks

Abstract:

An accident rate-based lifecycle operational reliability analysis approach of urban water distribution networks was proposed using the accident rate models for different pipe materials, the simulation models for different accidents, and the Langelier-based pipeline roughness model. The values of some key parameters were suggested by sensitivity analysis. Then, the operational reliability analysis of a case network was performed, by which the weak areas were determined and the network improvement measures were introduced.

Key words:water distribution networks; operational reliability; lifecycle; accident rate; pipe roughness