A construction method for integrally cutting off uncured concrete pile heads

Abstract

The invention relates to a construction method for integrally cutting uncured concrete pile heads, which is characterized in that it includes the following steps: S1: protective measures, putting PVC sleeves on the steel bars above the elevation, and using soft elastic materials for the upper and lower openings of the sleeves Blocking; S2: Preliminary pouring of concrete; S3: Reinforcement perforation, passing the rebar through the circular hole corresponding to the position and number of layers on the single-ring porous torus; S4: Adjusting and sealing the circular hole; S5: Device placement; S6: Supplementary irrigation Pile head; S7: Split concrete; S8: Waste collection; S9: Cleaning device; S10: Fan-shaped blade maintenance, water spray holes spray hot air, dry the residual moisture in the fan-shaped blade and its gap; S11: PVC sleeve recovery; The round holes on the single-ring porous ring body of the present invention can pass through the steel bars of different layers, and the redundant round holes can be closed by adjusting the slider, which can be applied to concrete piles with different layers, positions and diameters of the steel bars, and has great flexibility Strong, wide application range.

Description

technical field [0001] The invention belongs to the technical field of civil construction, and in particular relates to a construction method for integrally cutting uncured concrete pile heads. Background technique [0002] During the pouring of cast-in-place concrete piles, due to vibration, the cement slurry will return upwards and rise together with the air bubbles inside the concrete, forming laitance within a certain range on the top of the pile, so the strength of the concrete at the pile head is difficult to guarantee; When pouring underwater concrete, the mud and mortar mixture at the head of the pile accumulates the most, resulting in loose concrete at the head of the pile, and the strength cannot meet the requirements. Therefore, during the construction of concrete pouring piles, the actual elevation of the pile head is required to be 500-1000mm higher than the design elevation, and the higher part is removed manually or mechanically, which is usually called "chise...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a construction method for integrally cutting off the pile head of uncured concrete, so as to solve the problem that in the process of cutting off the pile head of the existing concrete pouring pile, the construction strength of the cut pile head is high, the efficiency is low, and the damage to the steel bar is relatively large. The problem of easy pollution to the environment

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