Pile planting method concrete backflow prevention device

Abstract

The invention relates to the technical field of building construction, in particular to a pile planting method concrete backflow prevention device. The pile planting method concrete backflow prevention device comprises a prefabricated pipe pile, a round steel cover plate used for preventing concrete from flowing backwards into a pile core is detachably installed at the top of the uppermost sectionof the prefabricated pipe pile, and an annular boss is fixed to the inner wall of the uppermost section of the prefabricated pipe pile. The round steel cover plate comprises a top plate, a base, a sliding rod, a sliding rod reset spring, a push block, a push block reset spring, a clamping hook and a torsional spring, a through hole with a small upper part and a large lower part is formed in the middle of the top plate, the base is fixedly connected to the bottom of the top plate, and clamping hooks connected with the annular boss in a clamped mode are uniformly hinged to the side wall of thebase. The device is novel in design, convenient to use, convenient to assemble and disassemble, capable of effectively preventing concrete from flowing backwards into the pile core to block the pile core and influence later pile core reinforcement cage installation, and suitable for further application and popularization.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a device for preventing concrete backflow by planting piles. Background technique [0002] In recent years, with the rapid development of coastal buildings, foundations such as corrosive and soft soils have become more common, and building construction has increasingly high requirements for the construction quality of pile foundations. In order to improve the durability of pile foundations on corrosive foundations and prevent the damage of uplift and displacement caused by pile driving in soft soil areas to adjacent buildings and underground pipelines, pile foundation construction has gradually appeared in people's field of vision. [0003] When constructing the pile method, first drill the hole diameter and hole depth according to the design requirements, then pour 2 / 3 of the effective pile length underwater concrete in the hole, and then insert the prefabricated p...

AI Technical Summary

Problems solved by technology

Compared with the traditional hammering method, the pile planting method is more fluid than the concrete. After the pile top is submerged in the concrete liquid level, the concrete is easily poured into the pile core, causing the pile core to be blocked and affecting the installation of the pile core reinforcement cage in the later stage.

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