A steel pipe pile device with outrigger

Abstract

The invention discloses a steel pipe pile device with overhanging arms. The steel pipe pile device comprises a steel pipe pile body, a drawing device, a hydraulic device, an extrusion cone and a plurality of sets of overhanging arms. The top of the steel pipe pile body is connected with the bottom of the drawing device, and the top of the drawing device is connected with the hydraulic device; the extrusion cone is arranged at the bottom of the steel pipe pile body, and is connected with the pulling device through a steel wire rope; a plurality of sets of through holes are formed in the side wall of the steel pipe pile body, the number of the through hole is equal to that of the overhanging arms, and the size of the through holes is matched with that of the overhanging arms; and the overhanging arms are arranged in the through holes. The extrusion cone is lifted by the hydraulic device in the steel pipe pile device with the overhanging arms through the drawing device, and therefore the overhanging arms extend towards the exterior of a pile, the contact area between the overhanging arms and the soil is increased, stability of the pile body can be effectively improved, and the vertical bearing capacity of the steel pipe pile can be obviously improved.

Description

technical field [0001] The invention relates to the technical field of steel pipe piles, in particular to a steel pipe pile device with outrigger arms. Background technique [0002] Due to its material, steel pipe piles can withstand greater hammering force, and the reliability of welded joints on the construction site is greater, so they can be fully driven into deeper bearing layers. It has the advantages of strong capacity, small amount of soil displacement, easy lengthening and cutting, good quality of driven piles, and high reliability of bearing capacity. In soft soil foundations, steel pipe piles with sink openings can also reduce the extrusion of foundation soil, and have relatively little impact on adjacent buildings and underground structures, so steel pipe piles are widely used in engineering. [0003] However, the existing steel pipe piles also have certain disadvantages: the steel pipe pile body is relatively smooth, so the pile side frictional resistance is re...

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Problems solved by technology

[0003] However, the existing steel pipe piles also have certain disadvantages: the pile body of the steel pipe pile is relatively smooth, so the pile side frictional resistance is relatively small; Small-diameter steel pipe piles, the pile body is too long, the slenderness ratio is too large, and the stability of the pile body is poor

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