Construction Technology of Steel Pipe Column Grouting Pile in Complex Geological Conditions

Abstract:

Steel pipe column reverse construction method is more and more widely applied in ultra large and ultra deep foundation pit, by the effective combination of bored pile and steel pipe column, the construction period and cost are greatly shortened. The verticality control is one of the important indicators of the construction quality of the steel pipe column. In order to meet the design requirements on the verticality of steel pipe column and ensure the construction quality, with the engineering case of steel pipe column grouting pile construction by the combination of auger drill and percussion drill in complex geological conditions, the paper summarizes and puts forward the technological process and control measures for reverse construction technology in steel pipe column grouting pile construction.