Steel pipe concrete pile

Abstract

The invention discloses a steel pipe concrete pile which comprises an outer steel pipe, a loading plate and a drill bit. An outer thread is arranged on the outer wall of the top of the outer steel pipe, and an inner thread is arranged on the inner wall of the bottom of the outer steel pipe. A spirally-surrounded threaded blade is welded to the position, between the outer thread and the inner thread, on the outer wall of the outer steel pipe. A fixing ring is fixedly welded to the position, located below the outer thread, of the outer wall of the top of the outer steel pipe. The top of the outer steel pipe is in threaded connection with the loading plate through the outer thread, and meanwhile the loading plate is detachably and fixedly connected with the fixing ring. An inner steel pipe isfixed to the center of the interior of the outer steel pipe. The steel pipe concrete pile can be easily and rotationally driven into the ground surface.

Description

Technical field [0001] The invention relates to a steel tube concrete pile. Background technique [0002] Concrete-filled steel tube pile is a composite structure with high bearing capacity, high plasticity, toughness, and convenient construction. At present, it is generally to pour concrete into the steel pipe first, then hammer the whole into the ground or dig a hole and then backfill the soil. This is time-consuming and laborious, and the backfill is likely to be insufficiently dense, especially when the pile driving is deflected. Taking out is more troublesome. Therefore, if the design is appropriate and simple screw-in steel tube concrete piles, construction efficiency can be greatly improved. Summary of the invention [0003] The purpose of the present invention is to provide a steel tube concrete pile that can be driven into the ground easily and rotatably. [0004] The technical solution to achieve the above-mentioned purpose is: [0005] A concrete-filled steel tube pile ...

AI Technical Summary

Problems solved by technology

At present, the concrete is usually poured into the steel pipe first, and then the whole is hammered into the ground or backfilled after digging a hole, which is time-consuming and labor-intensive and is prone to the situation that the backfill is not dense enough, especially when the piling is deflected, adjustment or take out more trouble

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