Cast-in-place concrete pile air bubble elimination casting device

Abstract

The invention discloses a cast-in-place concrete pile air bubble elimination casting device. A discharging hole is formed in the side wall of the lower part of a casting pipe, the bottom of the casting pipe is connected with an air bubble eliminator, the air bubble eliminator comprises an upper layer stirring device, a middle layer transmission structure and a bottom layer stirring device in sequential arrangement from top to bottom, the upper layer stirring device and the bottom layer stirring device can rotate in the same direction or in the opposite direction through being driven by the middle layer transmission structure, and the extending-out length of a stirring post can be respectively regulated by the upper layer stirring device and the bottom layer stirring device, so that the cast-in-place concrete pile air bubble elimination casting device can be applicable to casting piles with different pile diameters, the air bubble eliminator can ascend or descend along with the casting pipe, and the use is convenient. The cast-in-place concrete pile air bubble elimination casting device has the advantages that the air bubble eliminator can be prevented from being clamped in a steel bar cage during descending through a position limiting sleeve, and the service life of the air bubble elimination casting device is effectively prolonged.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a pouring device for eliminating air bubbles of concrete pouring piles. Background technique [0002] The cast-in-situ concrete pile is a kind of pile formed by directly forming a hole on the spot pile position, and then pouring concrete in the hole or placing a steel cage and then pouring concrete. The characteristic is that the pile diameter can be selected according to the needs, and piles with a diameter much larger than that of prefabricated piles can be built. Compared with the hammering method in sinking piles, the construction noise and vibration are much smaller, and it can be applied to various foundations. There are generally two types of existing concrete cast-in-place piles: immersed tube cast-in-place piles and bored cast-in-place piles. Among them, immersed tube cast-in-place piles use hammering pile sinking equipment to sink tubes and pull out tubes to f...

AI Technical Summary

Problems solved by technology

However, the concrete pouring piles that adopt the drilling process also have their defects: the quality of the concrete pouring has a great influence on the bearing capacity of the piles. If air bubbles appear in the pouring process, honeycombs will be formed on the pile body, and these honeycombs will seriously reduce the bearing capacity of the piles. carrying capacity

However, in the existing technology, the concrete with a relatively large slump is only used to form a pile by its own weight, and the pile body is not compacted by techniques such as vibration and mixing. This is because the vibration and mixing of concrete pouring piles have objective difficulties. First of all, the pile length of cast-in-situ piles is generally more than ten meters to tens of meters, and the vibrating rod cannot reach such a deep depth at all. If the condition is inside, it is difficult to vibrate and the effect is not good

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