Connector of rotary pressing pile

Abstract

A connecting component of rotary pressure pile comprises adequate intensity to rotations in positive and negative directions when the connecting component is rotatably pressed and is capable of steadily sustaining the mutual connection for a long time; and the connecting component is capable of sustaining steady endurance of the pile even if used for connecting the pile with minor diameter because of adopting the structure not projecting at the periphery of the pile. This connecting component is composed of female and male connectors (3, 2) and an anti-extraction component (4) and is provided with a connecting bump (6) mounted at a minor diameter part (5) at the lower part of the male connector, a first longitudinal groove part (12), a horizontal groove part (13) and a second longitudinal groove part (14) formed at the inside surface of the female connector. The anti-extraction component is inserted from a window (15) connecting the inner and outer of the female connector through the interacted part of the second longitudinal groove part (14) and the horizontal groove part so as to limit the connecting bump of the male connector in the second longitudinal groove to move in the upper and lower directions.

Description

technical field [0001] The present invention relates to a connection member used when connecting a plurality of rotary press-in piles supporting a foundation of a building or civil structural object along the press-in direction of the piles. Background technique [0002] Conventionally, for rotary press-in piles that support the foundations of buildings or civil structures, by rotating the pile, a load is applied to the pile head and pressed into the ground, thereby increasing the contact between the outer peripheral surface of the pile and the ground. The friction generated between soil and sand in the ground on the outer peripheral surface of the pile is used to support the pile and prevent the pile from sinking into the ground due to the load of a building or the like. [0003] Also, when pressing in the rotary press-in piles supporting the foundation of the building or civil structural object when the soft ground or the supporting ground is at a deep position, while conn...

AI Technical Summary

Problems solved by technology

[0006] However, the piles driven by rotary press-in have various diameters, and the outer diameter used to support the foundation of a general house is, for example, 114.3mm or 139.9mm (the outer diameter of the pile when supporting the foundation of a building, etc. For example, in a pile with a small diameter of approximately half of 267mm), it is easy to cause a problem that the diameter of the connecting member is particularly large and protrudes outward in the pile. The part where the ground is not compacted enough to prevent the smooth progress of the rotary press-in work or the concern that the stability of the supporting force cannot be sufficiently obtained after the press-in work in the case of insufficient press-in work management

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