Underwater non-dispersible concrete curing construction method

Abstract

According to the technical scheme, the underwater non-dispersive concrete curing construction method comprises the seven steps that in the grouting process, a high-pressure air pump is started, a driving mechanism drives a rotating pipe to rotate, a grouting pipe is slowly pulled upwards through hoisting equipment, and the grouting pipe is driven to rotate; underwater non-dispersible concrete flows into the pile hole from the bottom of the rotating pipe along the grouting pipe in the storage hopper, and the driving mechanism drives the rotating pipe to rotate to avoid the pipe burying phenomenon. According to the underwater non-dispersive concrete curing construction method, the rotating pipe which is driven by the high-pressure air pump and the driving mechanism to rotate is arranged at the lower end of the grouting pipe, so that the pipe burying phenomenon is avoided, flowing of underwater non-dispersive concrete can be accelerated, and the grouting efficiency is improved; and underwater non-dispersed concrete in the grouting pipe can be pushed downwards, so that the air blockage phenomenon is effectively avoided.

Description

technical field [0001] The invention relates to the field of building construction technology, in particular to an underwater non-dispersed concrete curing construction method. Background technique [0002] Underwater non-dispersed concrete has good anti-dispersion performance and fluidity. With the corresponding underwater pouring construction technology, it can effectively reduce the entry of corrosive medium during the concrete pouring process of cast-in-place piles, and minimize the impact of corrosive medium on concrete quality and pouring. Adverse effects of long-term durability of piles. [0003] At present, the commonly used underwater concrete pouring methods include conduit method, bagging method, hanging tank method and slurry raising method. Among them, the conduit method is a widely used underwater pouring construction method. Its advantages are that the pouring continuity is good, the pouring speed is fast, and it is not easy to cause aggregate separation, whi...

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Problems solved by technology

[0004] However, in the existing construction method, because the conduit is buried too deep in the concrete or the concrete inside and outside the conduit is initially set during the pouring process, the conduit is fixed in the concrete and difficult to pull out, causing the device to bury the pipe. Long length and too fast concrete pouring speed lead to air blockage in the feeding funnel, and a large amount of concrete accumulates in the feeding funnel and needs manual dredging before continuing to pour concrete, which seriously affects the quality of pile foundation concrete pouring and construction efficiency

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