SURGING LAPPAATUS FOR LARGE DIAMETER OF FOUNDATION CONSTRUCTION

摘要

The present invention relates to a large diameter basic engineering surging device, in which a plurality of connecting rods are connected in multiple stages to pump groundwater and slime in a pile hole, which is welded to the upper end of the connecting rod, and has an inner ring shape on an outer circumferential surface thereof. An inner coupling having a fastening groove formed thereon, the outer coupling being welded to a lower end of the connecting rod and connected to an outer circumferential surface of the interpolation coupling, and an outer circumferential surface having a ring-shaped outer fastening groove formed on an outer circumferential surface thereof; A plurality of connecting rods are formed on one side, and constitute a wire cable inserted into the fastening hole penetrating in the tangential direction of the outer fastening groove and the fastening hole and inserted into a ring-shaped space formed by the inner and outer fastening grooves. To the top of the connecting rod at the uppermost side connected to the inner and outer couplings. Connect the "L" shaped discharge rod to be connected, the lower end of the connecting rod is welded to the pumping pipe formed with the main end of the stationary stage, and then installed in the expansion of the pumping pipe "U" shaped injection pipe that penetrates inside Connect the high pressure hose to the high pressure air supply pipe formed with a fastener for fastening the high pressure hose to the upper end connection rod, and both sides are opened at the lower end of the lower connection rod and the cross section is “U” shaped. It is characterized in that the concrete mortar is poured after discharged by pumping the slime while the ground water in the pile hole by connecting the supply rod for concrete mortar provided with a hopper to the uppermost connection rod and the configuration attached.