Novel screw grout pile construction tool capable of being repeatedly utilized

Abstract

The invention provides a novel screw grout pile construction tool capable of being repeatedly utilized. The novel screw grout pile construction tool comprises an outer pipe body (6) and an inner pillar body (2), wherein an outer pipe neck ring (5) and a concrete inlet (3) are arranged at the upper end of the outer pipe body (6); a helical blade (8) is arranged at the lower end of the outer pipe body (6); a hook (1) is arranged at the upper end of the inner pillar body (2); a drill (9) is arranged at the lower end of the inner pillar body (2); an outer pipe connecting hole (4) is formed in the upper end of the outer pipe body; an inner pillar connecting hole (10) is formed in the inner pillar body; the two ends of the inner pillar connecting hole are through; the outer pipe body (6), the helical blade (8) and the drill (9) are manufactured through high-carbon steel; and the screw pitch of the helical blade (8) is smaller, and the thread of the helical blade (8) is denser. The novel screw grout pile construction tool has the advantage that the problems that holes collapse, the sediment is thick, piles are broken, the holes cannot be formed due to high underground water level, and excess concrete is utilized, of pile foundations of swivel-driven piles are solved.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a new reusable construction machine tool for screw grouting piles. Background technique [0002] At present, the national first-class construction method-semi-screw cast-in-situ pile technology is mainly used to make pile foundations. However, in the actual use process, it is found that the screw-forming section of this pile is difficult to adapt to the complex geological structure of the southwest region. Mountains, rivers, tributaries in this area Many geological changes are large, and the strength of the strata varies greatly. The strata are very different due to frequent flood alluvial. Unlike the uniform clay layer in the northern plains, and there is no obvious bearing layer, it is very easy to form a screw, which cannot meet the synchronization of screw piles. technology. But can't just can't make complete screw pile without synchronization. [0003] The soil s...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a new type of reusable screw pile construction equipment for the above-mentioned southwestern region's complex geology and high groundwater level, which make the half-screw cast-in-place pile construction method difficult to form screws and screw piles unstable.

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