Mechanical-free pile head breaking method and mechanical-free pile head breaking structure for cast-in-place pile

Abstract

The invention discloses a mechanical-free pile head breaking method and a mechanical-free pile head breaking structure for a cast-in-place pile. The mechanical-free pile head breaking structure comprises a main rib extruding funnel type container, an in-pile extruding funnel type container, a plastic bushing, an in-pile bearing ring and an anti-floating toroidal rib. The main rib extruding funneltype container and the plastic bushing are interpenetrated to a main rib of a pile body reinforcement cage in a sleeving manner, the anti-floating toroidal rib is welded to the main rib of the pile body reinforcement cage to prevent the main rib extruding funnel type container from floating upward, the in-pile bearing ring is welded to the main rib of the pile body reinforcement cage, and the in-pile extruding funnel type container is bonded to the in-pile bearing ring through a steel binding wire. The mechanical-free pile head breaking structure provided by the invention is simple in structure, skillful in design and convenient to operate, can pull out the pile head of the cast-in-place pile efficiently, and also solves the problems of deformation of reinforcing steel bars, mechanical damage of the lower pile body of the pile head and the like.

Description

technical field [0001] The invention relates to a non-mechanical pile head breaking device and a construction method for cast-in-situ piles. It belongs to the technical field of pile foundation construction. Background technique [0002] In the current building pile foundation construction, the cast-in-situ pile construction technology is often used. Since the pile head of the cast-in-place pile is mixed with impurities such as sediment, the strength cannot meet the requirements of use. In the current construction, manual breaking is often used, the excavator breaker is broken, or the pile head is pulled out by hydraulic pile head cutting machine and steel cage installation sleeve. In the current construction methods, the efficiency of manual demolition is too low, and it is rarely used; the use of excavator breaker hammers often causes bending of steel bars, and during the crushing process, it may cause damage to the normal pile body below the pile head; hydraulic cutting ...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a non-mechanical pile head breaking device and construction method for cast-in-situ piles, so as to solve the problems of high construction cost and unsatisfactory construction effect of the current cast-in-situ piles.

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