CN118065440A - A cross water-stop sealing structure and construction method for controlling deformation joint leakage - Google Patents

Abstract

The invention relates to a cross water-stop sealing structure for treating leakage of a deformation joint and a construction method thereof. During construction, the leakage deformation joint and the settlement joint are plugged, and then the evacuation structures at the two sides are repaired and cleaned in the joint; after cleaning, the extruded sheet is plugged in, and the first mortar filling construction is carried out, wherein the first mortar filling depth is half of the seam depth; then the plastic sheet is put into a U-shaped groove, and the notch faces the plastic sheet; then repairing the mortar for the second time to the outer surface of the structure; after the repair mortar is solidified, the extruded sheet is hooked, and then the compression sealing rubber is constructed; after compressing the sealing rubber into a ring, grouting is started to form a cross water-stop sealing structure; and finally, constructing weather-proof sealant at the outermost side, and improving the compression resistance of the water stop structure. The invention is suitable for the leakage treatment of deformation joints and settlement joints, and is especially suitable for the leakage treatment of deformation joints with larger deformation in winter and summer.

Description

A cross water-stop sealing structure and construction method for treating deformation joint leakage

Technical Field

The invention relates to a sealing structure and a construction method for treating leakage of a deformation joint, and in particular to a cross water-stop sealing structure and a construction method for treating leakage of a deformation joint.

Background technique

In underground concrete structures, temperature-dependent deformation joints, settlement joints and other structural structures must be set up. Its own waterproofing mainly relies on buried waterstops, but due to the limitations of technology and construction level, buried waterstops have "nine out of ten leaks". At present, there are a large number of underground structures in the industry, especially underground stations, shopping malls, etc., which have a great impact on normal use due to leakage.

Leakage treatment often relies on injection grouting, but due to the change of gaps and the inherent characteristics of the material, leakage will soon recur. There are also many new technical means in the industry, such as compression sealing technology, which creates a new waterproof system through extrusion force, but the adaptability of its rubber is 25% of the rubber diameter, which will cause leakage in shallow buried areas in the north or extremely cold weather in the Yangtze River Basin.

Summary of the invention

In view of the defects existing in the above-mentioned prior art, the present invention proposes a cross water-stopping sealing structure and a construction method for controlling the leakage of deformation joints.

In order to solve the above technical problems, the technical solution adopted by the present invention is: a cross waterstop sealing structure for controlling leakage of deformation joints, characterized in that it includes a cross waterstop seal, repair mortar, compression sealing rubber, and weather-resistant sealant. A cross waterstop seal is used in the leaking deformation joint to form a cross sealing structure with good ductility and capable of adapting to a larger deformation of the gap.

Furthermore, a U-shaped groove is arranged in the middle of the leakage deformation joint, and the notch of the U-shaped groove faces the extruded plate to form a mold for the subsequent cross sealing structure.

Furthermore, the repair mortar is filled twice during construction. After the mortar repair is completed, a compressed sealing rubber is used as the external seal for grouting. The grouting needle directly passes through the side of the rubber for grouting and observation holes to ensure the grouting effect.

Furthermore, acrylate grouting material is used for grouting to form a cross waterstop seal.

Furthermore, the compressed rubber seal forms a seal through extrusion force, and the weather-resistant sealant is connected to the joint through bonding force, finally forming a strong pressure resistance and weather resistance.

A construction method for treating leakage of deformation joints adopts a cross water-stopping sealing structure for treating leakage of deformation joints, firstly, the leaking deformation joints and settlement joints are plugged, then the evacuation structures on both sides are repaired and the inside of the joints are cleaned; after the cleaning is completed, an extruded board is inserted, and then the first mortar filling construction is carried out, and the depth of the first mortar filling is half of the joint depth; then a U-shaped groove is put in, with the groove facing the extruded board; then a second mortar repair is carried out to the outer surface of the structure; after the repair mortar is solidified, the extruded board is hooked out and cleaned, and then compression sealing rubber is constructed; after the compression sealing rubber is formed into a ring, grouting is started, and acrylate is selected as the slurry, and after the acrylate filling is completed, a cross water-stopping sealing structure is formed; finally, weather-resistant sealant is constructed on the outermost side to improve the pressure resistance of the water-stopping structure.

The beneficial effects of the present invention are:

The cross water-stop sealing structure adopted in the present invention greatly improves the deformation resistance of the waterproof system through the ductility of the material itself and the structural advantages, thereby adapting to the larger deformation requirements of the seam.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a cross-sectional view of a water-stopping seal structure according to the present invention.

Detailed ways

The embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings.

As shown in FIG. 1 , the cross water-stop sealing structure for treating deformation joint leakage of the present invention comprises a cross water-stop sealing 3 , a repair mortar 4 , a compression sealing rubber 5 , and a weather-resistant sealant 6 .

The newly built cross water-stop seal 3 forms a cross structure, which has good ductility and can adapt to the deformation of a large gap. The repair mortar 4 is filled twice during construction. A U-shaped groove is set in the middle of the leakage deformation joint. The U-shaped groove is notched toward the extruded plate to form a mold for the subsequent cross seal. After the mortar repair is completed, the compression sealing rubber 5 is used as the external seal for grouting. The grouting needle tube 2 can directly pass through the side of the compression sealing rubber 5 for grouting and observation holes to ensure the grouting effect.

The grouting adopts acrylate grouting material to form a cross water-stop seal 3. The cross water-stop seal 3 has a good ability to adapt to deformation in terms of its own material and structure.

The compression rubber seal 5 forms a seal through extrusion force, and the weather-resistant sealant 6 is connected with the joint through bonding force, finally forming a strong pressure resistance and weather resistance.

The construction method of the present invention is as follows:

1. First, seal the leaking deformation joints, settlement joints and other true joints, and then repair the evacuation structures 1 on both sides and clean the inside of the joints;

2. After cleaning, insert the extruded board, and then carry out the first mortar filling construction. The first mortar filling depth is half of the seam depth; then put it into the U-shaped groove with the groove facing the extruded board; and then carry out the second mortar repair to the outer surface of the structure;

3. After the repair mortar solidifies, remove the extruded board, clean it, and then apply the compressed sealing rubber;

4. After the sealing rubber is compressed into a ring, grouting begins. Acrylate is used as the slurry. After the acrylate filling is completed, a cross water-stop sealing structure is formed;

5. Finally, apply weather-resistant sealant on the outermost surface to improve the compressive resistance of the water-stopping structure.

Claims (6)

1. A cross water-stop sealing structure for treating leakage in deformation joints, characterized in that it comprises a cross water-stop seal, repair mortar, compression sealing rubber, and weather-resistant sealant. A cross water-stop seal is used in the leakage deformation joint to form a cross sealing structure with good ductility and capable of adapting to a larger deformation of the gap. 2. The cross water-stopping sealing structure for controlling deformation joint leakage according to claim 1 is characterized in that a U-shaped groove is arranged in the middle of the leakage deformation joint, and the notch of the U-shaped groove faces the extruded plate to form a mold for the subsequent cross sealing structure. 3. According to claim 2, the cross-shaped water-stop sealing structure for treating deformation joint leakage is characterized in that the repair mortar is filled twice during construction. After the mortar repair is completed, a compressed sealing rubber is used as the external seal for grouting, and the grouting needle directly passes through the rubber side for grouting and observation holes to ensure the grouting effect. 4. The cross water-stop sealing structure for treating deformation joint leakage according to claim 3 is characterized in that grouting adopts acrylate grouting material to form a cross water-stop seal. 5. The cross water-stop sealing structure for treating deformation joint leakage according to claim 1 is characterized in that the compression rubber seal forms a seal through extrusion force, and the weather-resistant sealant is connected to the joint through bonding force, finally forming strong pressure resistance and weather resistance. 6. A construction method for treating leakage in deformation joints, which adopts a cross water-stopping sealing structure for treating leakage in deformation joints, and is characterized in that: first, the leaking deformation joints and settlement joints are sealed, and then the evacuation structures on both sides are repaired and the inside of the joints are cleaned; after the cleaning is completed, an extruded board is inserted, and then the first mortar filling construction is carried out, and the depth of the first mortar filling is half of the joint depth; then a U-shaped groove is placed with the groove facing the extruded board; a second mortar repair is carried out to the outer surface of the structure; after the repair mortar is solidified, the extruded board is hooked out and cleaned, and then compression sealing rubber is constructed; after the compression sealing rubber is formed into a ring, grouting is started, and acrylate is used as the slurry. After the acrylate filling is completed, a cross water-stopping sealing structure is formed; finally, weather-resistant sealant is constructed on the outermost side to improve the compressive resistance of the water-stopping structure.