Nuclear island reactor foundation bottom pressure grouting device, grouting system and grouting method

Abstract

The invention relates to a grouting device for conducting pressure grouting on a nuclear island reactor foundation bottom. The grouting device comprises grouting pipes arranged in a basic layer surface groove and is characterized by comprising a plurality of grouting pipe fixing supports fixed on two sides of the basic layer surface groove abreast in a linear mode at intervals. The grouting pipes penetrate through the insides of the plurality of grouting pipe fixing supports. The grouting device further comprises a plurality of grouting material level detecting devices fixed on the plurality of grouting pipe fixing supports. The invention further relates to a grouting system formed by the grouting device. The invention further relates to a grouting method for conducting the pressure grouting on the nuclear island reactor foundation bottom by using the grouting system. The grouting device, system and method is improved, and by using the grouting level detecting devices, the problem of density of the grouting material in a large-area grouting area is solved. Grouting speed of the grouting pipes in a grouting process can be observed, and grouting quality is prevented from being affected by air led in through the grouting material after the grouting pipes are pulled out of the liquid level.

Description

technical field [0001] The invention and a grouting device specifically design a pressure grouting device for the foundation bottom of a nuclear island reactor used for pressure grouting in a confined space; the invention also relates to a grouting system composed of the grouting device; The grouting system is a grouting method for pressure grouting at the bottom of a nuclear island reactor foundation. Background technique [0002] The current grouting technology is widely used in various sectors of the national economy such as petroleum, chemical industry, power station, metallurgy, nuclear power, and national defense. With the continuous improvement of construction technology, the demand for grouting has also increased. In order to improve the quality of grouting and improve the efficiency of grouting equipment, the mix ratio of grouting materials is becoming more and more strict. [0003] At present, the domestic grouting construction technology generally has the follow...

AI Technical Summary

Problems solved by technology

[0004] (1) It is difficult to control the compactness of grouting materials in confined spaces, and the quality of grouting cannot be directly reflected;

[0005] (2) During the grouting process, affected by the grouting pressure, the random swing of the grouting pipe affects the grouting progress and grouting quality;

[0006] (3) During the grouting process, the grouting pipe is easy to be pulled out of the grouting liquid surface and exposed to the air, which makes it easy to introduce air into the grouting material to form air bubbles, which affects the grouting quality

Images