Construction method for grouting and vibrating of concrete

Abstract

The invention relates to a construction method for grouting and vibrating of concrete. The method comprises the first step that an agitator is started, and water and cement are added into the agitator to form cement grout; the second step that a grouting steel pipe is inserted into an interval inside a sand gravel stacking body; the third step that a control valve is switched on; the fourth step that a pressure pump injects the cement grout inside the agitator into the sand gravel stacking body through a high pressure resistant pipeline and the grouting steel pipe; the fifth step that vibrating is carried out. The construction method for grouting and vibrating of concrete has the advantages that the construction method is not limited by construction space, construction can be finished only by inserting the grouting steel pipe and a vibrating bar into concrete, the construction process is simple, the construction efficiency is high, concrete formed after construction is high in quality, the construction period is short, and the cost is low.

Description

technical field [0001] The invention relates to the field of concrete construction, in particular to a construction method for grouting and vibrating concrete. Background technique [0002] As we all know, China is a big hydropower construction country. During the construction of many hydropower projects, it is often encountered that sand and gravel foundations need to be poured with concrete, or concrete is poured in still water. The traditional method is to excavate the sand and gravel and pour normal concrete; or pour underwater concrete after excavation. The disadvantages of the excavation method are: when pouring normal concrete, it is difficult to drain the collected water, and the flowing water will take away the slurry in the concrete, which affects the quality of concrete construction; the underwater concrete needs to be installed in a centralized manner, and it is easy to pull out the pipe when pulling out the pipe Empty, so that the concrete is scattered in the w...

AI Technical Summary

Problems solved by technology

The disadvantages of the excavation method are: when pouring normal concrete, it is difficult to drain the collected water, and the flowing water will take away the slurry in the concrete, which affects the quality of concrete construction; the underwater concrete needs to be installed in a centralized manner, and it is easy to pull out the pipe when pulling out the pipe Empty, so that the concrete is scattered in the water to form uncompacted concrete, and it is suitable for a small area and a sufficient height of the construction space; and for a site with a large area and a low construction space, such as tunnel construction, the construction method has great limitations

[0012] The metamorphic concrete automatic grouting and vibrating equipment has complex structure, high manufacturing cost and limited application range

[0013] At present, sand and gravel are dug out of the water, and then the treated area is closed, the water in the area is drained, and normal concrete is poured in this area, and the construction period is long; while pouring concrete underwater is prone to concrete dispersion. defect

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