2、HC)沉管灌注桩钻孔灌注桩人工挖孔桩 Abstract: PHCpipe, prestressed high strength concretepipepiles. Is pre-tensionedprestressed centrifugal moldingprocess, and 10 atm, 1800 ° C about steamcuring,madeof a hollow cylindrical mixed suspected soil prefabricated, standar
3、d inlengthand10m indiameterfrom 300mm ~ 800mm, concretestrength grade ≥ ofC80. Category:concretepile effective pre-compressionstress values: type A, type AB type B, C-type 2,accordingto the strengthgradeofconcrete: PrestressedConcretePiles (code PC),