A construction method for accurately positioned recyclable steel pipe piles

Abstract

The present invention provides a precisely positioned recyclable steel pipe pile construction method, which belongs to the technical field of recyclable steel pipe pile construction, and comprises: accurately measuring and laying out a construction area to determine the position and elevation of the steel pipe pile; leveling the site with advanced machinery and installing a stable and horizontal drilling rig; correcting the verticality of the drill rod with two theodolites to ensure that the deviation is less than 0.5%; drilling a hole with a skip-drilling process, checking the verticality every 2 meters and correcting it; cleaning the sediment and accumulated water at the bottom of the hole with compressed air; installing the steel pipe pile and connecting it with the upper and lower connectors of the pipe shoe; connecting the steel pipe pile with the steel crown beam with U-bolts, and using mud wall protection between the pile and the waist beam; backfilling and compacting the fertilizer trough, and backfilling and compacting in layers after removing the waist beam; using pile pulling equipment to recover the steel pipe pile, and backfilling the pile hole with sand; the construction method provided by the present invention solves the technical problem that the existing recyclable steel pipe pile construction method has low positioning accuracy.

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