The invention discloses a double-
machine collaborative
pile forming method for a
construction waste backfill layer and a seepage stratum, which belongs to the technical field of
building construction and comprises the following steps of: leveling and pressing a construction site, measuring and setting out to determine a
pile position, performing hole pre-forming at the
pile position by adopting a rotary drilling rig, sinking a steel casing into a pre-formed hole until the stratum is stable, and forming a pile in the
construction waste backfill layer and the seepage stratum. The method comprises the steps that a steel casing is arranged in a hole, wall protection
slurry is injected between the steel casing and the hole wall to form a composite wall protection structure, a long spiral drilling
machine is adopted for drilling to the designed depth in the composite wall protection structure, concrete is continuously pressed and grouted through a hollow
drill rod, the drilling and grouting process is controlled in a linkage mode through an intelligent
monitoring system, and the
drill rod is synchronously lifted in the pressing and grouting process; after concrete pouring is completed, a vibration inserter is adopted to
implant the reinforcement cage into concrete, and a
reinforced concrete cast-in-place pile is formed; according to the double-
machine collaborative pile forming method for the
construction waste backfill layer and the seepage stratum, the construction efficiency, the pile forming quality, the economic benefit and the environmental friendliness are comprehensively improved.