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南水北调中线惠南庄至大宁段,经专家充分论证,决定采用DN4000PCCP管双线布置输水。工作压力0.4~0.8Mpa。最大覆土厚度10米。工程共铺设DN4000PCCP管道长106.222km,共约21245
South line of the South to North Water Transfer from Huinan Zhuang to Daning section, fully demonstrated by experts, decided to use DN4000PCCP pipe layout of double-line water. Working pressure 0.4 ~ 0.8Mpa. The largest soil thickness of 10 meters. A total of DN4000PCCP pipe laying project 106.222km long, a total of about 21245