Technology of risk evaluation and decision-making for fault risk of water supply net system

The method of minimalcutset is the effective way to evaluate the reliability and the risk of the network system.Based on the application of the mininalcutset way in the complex water supply net system,this paper established the calculating model of the risk evaluation and the decision-making for the fault of the water supply net system,and analyzed the corresponding example through the program compiled by authors.The results show that the analysis method on the risk evaluation and the decision-making of the urban supply water pipelines based on the theory of minimalcutset was scientific,reasonable, effective,and valuable for application.