PREPARATION METHOD OF UNDERWATER GRANITE CONCRETE FOR OVER 100 METERS DEEP CAST-IN-PLACE PILE
When the existing concrete is used to inject the bored pile,the concrete often blocks the pipe due to the factors such as low sand content and poor workability in the concrete,resulting in the interruption of the concrete pouring.If the concrete is reinjected,there will be floating slurry interlayers in the concrete of the bored pile,resulting in the broken pile.This paper focuses on the preparation of underwater granite concrete from five aspects:raw material selection and inspection of underwater granite concrete,indoor component design,mixing verification of outdoor mixing station,and construction verification and implementation effect of the first cast-in-place pile on the construction site.
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