Adaptability evaluation and engineering application of long-distance large-diameter water conveyance pipeline in mountainous city
The selection of pipes is of great significance to the safety and economy of long-dis-tance water pipelines.Taking a long distance and large diameter water pipeline project in southwest China as an example,AHP and entropy weight method were used to combine qualitative and quan-titative indicators to put forward the adaptability evaluation method of water pipeline,and the pipe evaluation model was constructed by comprehensively considering all factors such as pipeline econo-my,safety and construction adaptability.The performance characteristics of prestressed concrete tube(PCCP),steel pipe,ductile iron pipe and RPMP composite pipe were comprehensively ana-lyzed by adaptability evaluation method.The results showed that the composite scores of PCCP pipe,steel pipe,ductile iron pipe and RPMP composite pipe were 0.357,0.228,0.218 and 0.197,respectively,and the scores of PCCP pipe were the highest.The comprehensive applicability is the strongest,recommended as the main material used in this project.
Mountain cityLarge diameter water pipeAnalytic hierarchy processEntropy weight methodAdaptability evaluation