Special grouting device for repairing leakage of deformation joint

Abstract

The invention relates to a special grouting device for repairing leakage of a deformation joint, which comprises a mixing grouting pipe, a grouting valve, a positive and negative mixing bar, a water inlet valve, a water injection pump, a glue inlet valve and a grouting pump. Glue solution and water are synchronously pressed in the mixing grouting pipe through the grouting valve; water inflow can be controlled through the water inlet valve to ensure reasonable weight proportion between the glue solution and the water before the grouting; and the two kinds of liquid is automatically mixed through the positive and negative mixing bar in the mixing grouting pipe under pressure. The special grouting device has the advantages that: two substantive technical defects in actual use of the traditional grouting leakage stoppage material can be solved, and the glue solution and the water can be synchronously pressed-in at equal ratio and can be automatically mixed before the grouting, so that the mixing proportion and the mixing uniformity of the glue solution and the water can be ensured, the reaction speed and the reaction thoroughness after the mixing of the glue solution and the water are stabilized, the leakage stoppage effect of CS-51 grouting leakage stoppage material glue solution on the deformation joint can be greatly improved, and the defects in a direct glue pouring method are thoroughly solved. The special grouting device provided by the invention is simple to operate, lower in cost and strong in practical applicability.

Description

【Technical field】 [0001] The invention relates to a grouting equipment used for repairing leakage of deformation joints of underground building walls. 【Background technique】 [0002] In underground buildings, the walls are all concrete structures. According to the design requirements, deformation joints (commonly known as expansion joints) must be set when the length of the building reaches a certain distance. In order to prevent leakage at the deformation joints, the deformation joints must be filled with asphalt The glue composed of hemp silk, after it is cooled and solidified, fills the deformation joint. In order to prevent the filler from expanding out of the joint, a rubber water barrier composed of a circular tube body and a side plate is usually added to the exposed part of the deformation joint. The decorative board is used outside the rubber water retaining board to beautify and decorate the wall, thereby further improving the anti-leakage performance. The anti-le...

AI Technical Summary

Problems solved by technology

In the actual use process, there are two fatal flaws: first, the proportion of CS-51 grouting plugging spirit glue and water cannot be controlled; second, the glue and water cannot be mixed uniformly before grouting; This defect will directly affect the reaction time of the two and the reaction quality of the generated gel, thus directly affecting the plugging and leakage effect of the deformation joint. If the glue and water are not stirred evenly, the surface of the glue will react too quickly, and The glue in the inside reacts insufficiently due to lack of water, resulting in a soft core phenomenon. At the same time, it blocks the grouting pipe and affects normal grouting. What is more serious is that due to incomplete reaction, it leads to false plugging and leakage. The increase of water pressure on the leakage layer will cause secondary leakage

Practice has proved that this anti-leakage repair method can only be tabulated and cannot fundamentally solve the leakage problem, because CS-51 grouting plugging spirit must be added with a certain proportion of water and stirred evenly before it can be grouted and solidified normally. plugging

The existing leakage plugging method is only to inject plugging spirit glue into the pre-opened holes, and the leakage conditions in the deformation joints are different. First, the mixing ratio of glue and water is not guaranteed; second, the glue is not realized. Liquid and water are mixed evenly and then injected and solidified. It is difficult to ensure the sealing effect. Although this repair method can cope with acceptance, it will still leak after a long time. This is a very headache technical problem in the construction industry.

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