Analysis on Common Quality Defects of Concrete Grouting Pile with Auger Drill in Serious Permeable Formation

Abstract:

The paper analyzed common quality defects of concrete grouting pile with auger drill in serious permeable formation, summed up the important effect of wall protection on concrete grouting pile. Quality acceptance standard of wall protection with mud is quite different to rotary drilling and water drilling for concrete grouting pile, the paper proposed that quality acceptance should replenish an item of wall protection with mud, take care of the diameter after hole cleaning.

Key words:serious permeable formation; auger drilling; borehole completion; grouting pile; common defects; acceptance of wall protection; acceptance of hole diameter