A pile head partition device and a pile breaking construction method

Abstract

The invention includes a pile head partition type device, which includes a barrier plate, a sleeve, an isolation sleeve, and a grouting conduit. The concrete connection between the super-filling part and the non-over-filling part is separated by the barrier plate, and the effective pile position is protected. The sleeve fit realizes most of the isolation between the effective pile head and the invalid pile head in the pile, reduces the concrete connection surface, and effectively reduces the later cutting surface. Simultaneously, the present invention also includes a pile breaking construction method using the pile head partition device, comprising the following steps: 1, prefabricating the entire device; 2, installing the device on the main reinforcement in the pile; 3, using the grouting conduit to pass the sleeve Grouting of cylinder and barrier plate; 4, breaking piles; 5, cleaning invalid pile heads.

Description

technical field [0001] The invention belongs to the technical field of building construction, and in particular relates to a pile head separation device and a pile breaking construction method. Background technique [0002] At present, in engineering construction, the treatment of the over-filling part of the cast-in-situ pile head is relatively conservative and cumbersome. At present, manual construction is generally used. The tools are jackhammers, sledgehammers and steel drills. A number of steel drills are driven into the bottom of the main reinforcement, and the pile head is cut off horizontally to realize the removal of the concrete pile head. However, due to the large number of main bars and the tight grip with concrete, the separation of the main bars of concrete is often incomplete, and the workers need to be very careful in operating the equipment, which makes the construction more difficult, consumes more manpower, and lowers the efficiency and economic benefits. ...

AI Technical Summary

Problems solved by technology

However, due to the large number of main bars and the tight grip with concrete, the separation of the main bars of concrete is often incomplete, and the workers need to be very careful in operating the equipment, which makes the construction more difficult, consumes more manpower, and lowers the efficiency and economic benefits.

[0003] In the prior art, there are some pile head breaking devices that solve the problems of tight concrete gripping and incomplete separation of concrete and main reinforcement, and reduce the difficulty of manual construction. For example, the invention patent "a bridge pile foundation pile head breaking device and pile head "Removal method" (authorization announcement number CN105297729B), but it still has the problem of large contact and connection area between the effective pile head and the invalid pile head, and the large amount of removal work in the later stage

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