Grouting device, system and method for conducting pressure grouting on nuclear island reactor foundation bottom
A technology for nuclear island reactors and the bottom of foundations, applied in infrastructure engineering, construction, etc., can solve problems such as the inability to intuitively reflect the quality of grouting, affecting the quality of grouting, and difficult to control the compactness of grouting in confined spaces.
Active Publication Date: 2013-08-21
CHINA NUCLEAR IND 24 CONSTR
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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
Method used
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Embodiment Construction
[0036] Combine below Figure 1 to Figure 4 Embodiments of the present invention will be further described.
[0037] A nuclear island reactor foundation bottom pressure grouting device, such as figure 1 and figure 2 As mentioned above, there is a groove on the grouting base layer, and there is only a 10cm gap between the base layer 3 and the reactor containment bottom head (39.72m in diameter), forming a bowl-shaped structure, and the grouting area formed is 306m2 2 , the depth of the groove is greater than or equal to 5cm, and the width is greater than or equal to 15cm. The grouting pipe 1 is placed in the groove of the base layer 3; 6 grouting pipe fixing brackets 2 are fixed side by side at an even distance on both sides of the groove of the base layer 3, The grouting pipe 1 passes through the interior of the 6 grouting pipe fixing brackets 2, and the grouting pipe 1 can freely move axially inside the grouting pipe fixing bracket 2; the 6 grouting material liquid level de...
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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 bottom of a nuclear island reactor foundation for pressure grouting in a closed 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 the foundation of a nuclear island reactor. Background technique [0002] At present, 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 mixing ratio of grouting materials is becoming more and more strict. [0003] The current domestic grouting construction technology, such as the equipment fo...
Claims
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Login to View More IPC IPC(8): E02D15/02E02D27/38
Inventor 伍崇明刘天宇赵景发张炳畅陈尚瑞刘向荣闫沛王佩张洪强
Owner CHINA NUCLEAR IND 24 CONSTR