CN217974835U - Deformation joint water stop reinforcing structure - Google Patents

Abstract

The utility model relates to a deformation joint water stop reinforcing structure, which comprises a blocking layer, an elastic layer, a secondary blocking layer, a bonding reinforced layer, a reinforcing layer, a bonding reinforced layer and a cover coat; the finish coat flushes with outer coating, and wherein, reserves the cavity between shutoff layer and the secondary shutoff layer, is equipped with the injected hole on the secondary shutoff layer, and the injected hole pierces through the reservation cavity that the secondary shutoff layer reachd between shutoff layer and the secondary shutoff layer, fills up the cavity between shutoff layer and the secondary shutoff layer through the injected hole injection mode, forms the elastic layer. The utility model discloses can effectively reduce or avoid the deformation joint to gush the emergence of uncontrollable circumstances such as seepage, mud backward flow, accomplish the deformation joint under controllable, the environment of guaranteeing structure safety and restore, and the structure is durable. A long-term and stable water stopping and reinforcing structure is formed at the deformation seam.

Description

Deformation joint water stop reinforcing structure

Technical Field

The utility model belongs to the technical field of the movement joint maintenance, specific theory relates to a movement joint stagnant water reinforced structure.

Background

Due to the influence of factors such as temperature change, uneven settlement of foundation, earthquake and the like, deformation joints are required to be reserved for buildings and structures. The deformation joints are divided into expansion joints, settlement joints and shockproof joints according to different external damage factors. The deformation joint is the waterproof weak link of building, especially when adopting the formula waterstop of burying, because of the waterstop has divided into two parts with the concrete, can cause adverse effect to the concrete of deformation joint department, if bury the formula waterstop around the concrete difficult closely knit that vibrates, the bubble is difficult for discharging, leads to in to bury the concrete intensity of burying around the waterstop not enough. And the shrinkage generated when the concrete is solidified easily causes a gap between the water stop and the rear layer concrete, thereby forming a water leakage channel.

The deformation joint becomes a high-hair link of leakage in the structure. Because the deformation joint is a reserved breaking structure for stress failure, the width of the deformation joint is wide (generally 20-30 mm), the structural strength is weak, the bearing water head pressure is large, once water leakage occurs, particularly, unfavorable phenomena such as mud outburst, water burst, high-pressure water leakage and the like occur in an underground structure, and the requirement on the high water pressure resistance of the repairing material is high. Meanwhile, the deformation joint is a structural layer reserved for coping with stress damage, and the rigid connection cannot be simply made through rigid materials, so that further damage to the building is avoided. The traditional repairing process mainly adopts the methods of high-pressure polyurethane grouting material, high-pressure cement paste and water glass. The high-pressure polyurethane grouting material method has the advantages that the polyurethane grouting material has poor self pressure resistance, high later-stage shrinkage rate and large grouting pressure, and the grouting material is foamed and pressurized for the second time in concrete, so that the crack of the concrete which is not dense originally is increased, broken and loosened, the temporary water stopping is realized in a short period, the re-leakage is caused after a period of time, the secondary maintenance difficulty is large, the leakage amount is increased, and the structure safety is seriously influenced even.

The method of high-pressure cement paste injection and water glass needs to puncture a water stop and a structural plate, and cement paste injection and water glass injection are performed into a soil layer to change the density of the soil layer, so that the effects of water stopping and reinforcement are achieved. However, in actual operation, the construction method is high in cost due to uncontrollable injection amount, and meanwhile, when the density of soil layers is changed, the uneven settlement of the building can be aggravated due to insufficient experience. This process may also lead to back-filling of the slurry, uncontrolled leakage water, etc.

Although the deformation joint is difficult to leak and maintain, the deformation joint is a structure which is necessary to be reserved for large-volume buildings, so that a new structure which is adaptive to deformation, can meet the high-pressure water sealing requirement of the structure, and is high in structural strength, convenient to construct and easy to maintain is necessary.

Disclosure of Invention

In order to overcome the problem that exists among the background art, the utility model provides a movement joint stagnant water reinforced structure can effectively reduce or avoid the movement joint to gush the emergence of uncontrollable circumstances such as seepage, mud backward flow, accomplishes the movement joint under the prerequisite of guaranteeing structure safety and restores, forms long-term, stable stagnant water, reinforced structure at the movement joint.

In order to achieve the above purpose, the utility model is realized by the following technical scheme:

deformation joint stagnant water reinforced structure include plugging layer, secondary plugging layer, set up elastic layer between plugging layer and secondary plugging layer, cover the bonding enhancement layer outside the secondary plugging layer, cover the mortar back up coat outside the bonding enhancement layer through the filling mode.

Preferably, the secondary plugging layer is provided with a grouting hole which penetrates through the secondary plugging layer and is inserted between the plugging layer and the secondary plugging layer and is used for filling the elastic layer.

Preferably, the distance between the grouting holes is 100-400mm.

Preferably, the elastic layer is made of resin gel for acrylate grouting, and the blocking layer and the secondary blocking layer are made of cement-based permeable crystallization type plugging agents; the bonding reinforcing layer is made of a water-based capillary crystalline waterproofing agent; the mortar reinforcing layer is made of cement-based permeable crystallization type waterproof mortar.

Preferably, the deformation joint water stopping and reinforcing structure further comprises a two-layer bonding reinforcing layer covering the outside of the mortar reinforcing layer and an elastic finishing coat covering the outside of the two-layer bonding reinforcing layer, and the elastic finishing coat is flush with the outer coating.

Preferably, the two bonding and reinforcing layers are made of a water-based capillary crystalline waterproof agent; the elastic finishing coat is made of elastic waterproof paint with adjustable color.

Preferably, the material of the elastic finishing coat is polymer cement waterproof paint or epoxy resin waterproof paint.

The utility model has the advantages that:

the utility model discloses a set up the elastic layer between shutoff layer and secondary shutoff layer, remold the inside elasticity stagnant water structure of movement joint. The hydration performance of an interlayer interface transition region is improved through the infiltration crystallization effect, the interlayer interface bonding force is improved through the full hydration and the bidirectional infiltration crystallization growth effect, the crack generation is reduced, the interlayer integration degree is increased, and the high water pressure resistance, the extrusion resistance and the deformation resistance of the deformation joint water stop reinforcing structure are improved.

The utility model discloses each layer structure thickness is adjustable, can realize the accurate control of structure thickness, material quantity, has both guaranteed effectively, the stability of structure, practices thrift cost of maintenance again.

The utility model discloses can effectively reduce or avoid the deformation joint to gush the emergence of uncontrollable circumstances such as seepage, mud backward flow, accomplish the deformation joint under the prerequisite of guaranteeing structure safety and restore, form long-term, stable stagnant water, reinforced structure at the deformation joint.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

remarking: after the structure of the utility model is formed, the grouting holes are covered and are commonly used building structure grouting holes, so the grouting holes are not marked in the attached drawings;

in the figure, 1, a blocking layer; 2. an elastic layer of a deformation joint; 3. secondary plugging layer; 4. bonding a reinforcing layer; 5. a reinforcement layer; 6. bonding a reinforcing layer; 7. a cover coat layer 8, a reinforced concrete layer; 9. an outer coating layer; 10-deformation joint.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the following will explain in detail a preferred embodiment of the present invention with reference to the accompanying drawings to facilitate understanding of the skilled person.

As shown in figure 1, the deformation joint water stop reinforcing structure comprises a blocking layer 1, an elastic layer 2, a secondary blocking layer 3, an adhesion reinforcing layer 4 covering the outside of the secondary blocking layer 3, a reinforcing layer 5 covering the outside of the adhesion reinforcing layer 4, an adhesion reinforcing layer 6 covering the outside of the reinforcing layer 5, and a cover surface layer 7 covering the outside of the adhesion reinforcing layer 6, wherein the cover surface layer 7 is flush with an outer coating layer 9. Wherein, shutoff layer 1 is at the lower floor, and secondary shutoff layer 3 reserves the cavity in the top on shutoff layer 1 between shutoff layer 1 and the secondary shutoff layer 3. Be equipped with the injected hole on the secondary plugging layer 3, the injected hole pierces through secondary plugging layer 3, reaches the reservation cavity between plugging layer 1 and the secondary plugging layer 3 for fill elastic layer 2. The elastic layer 2 fills the cavity between the blocking layer 1 and the secondary blocking layer 3 in a grouting hole filling mode.

The material of the blocking layer 1 and the secondary blocking layer 3 is a cement-based permeable crystallization type plugging agent, the material of the elastic layer 2 is resin gel for acrylate grouting, the material of the bonding reinforcement layer 4 and the two bonding reinforcement layers 6 is a water-based permeable crystallization type waterproof agent, the material of the mortar reinforcement layer 5 is cement-based permeable crystallization type waterproof mortar, and the material of the elastic cover layer 7 is color-adjustable elastic waterproof paint, such as polymer cement waterproof paint, epoxy resin waterproof paint and the like.

Plugging layer 1 shutoff is in the lower floor of expansion joint, after the fluting along deformation joint 10, the shutoff of shutoff layer 1 shutoff is in the lower floor of inslot, shutoff layer 1 material is cement base infiltration crystallization type plugging agent, shutoff layer 1 provides a relatively stable, dry operation base face for the sequent structure, after shutoff layer 1 formed, construction secondary shutoff layer 3, and predetermine the injected hole, after secondary shutoff layer 3 reached the intensity requirement, pour into the resin gel for the grout that uses acrylate as the owner through the injected hole, fill the cavity between shutoff layer 1 and secondary shutoff layer 3, form the even, continuous elastic layer 2 of thickness. By arranging the plugging layer 1 and the secondary plugging layer 3, the cement-based permeable crystallization type plugging agent performs bidirectional permeation, and the crystal grows into dendritic crystals to form an integrated bonding and reinforcing effect of physical occlusion. The elastic layer 2 adopts acrylate resin gel for grouting, the material can slightly expand when meeting water, and the shrinkage cracks of the cement-based permeable crystallization type plugging agent can be compensated to ensure that the structure is compactly filled and is firm. Meanwhile, the resin gel for acrylate grouting is a low-viscosity material, the injection pressure is low, the cracking of a multilayer structure and the further deterioration of surrounding concrete can be avoided, the formed elastic layer 2 is low in shrinkage rate, the bonding force with the blocking layer 1 and the secondary blocking layer 3 is good, the later-stage falling is avoided, and the stability and the durability of the whole structure are ensured.

The bonding reinforced layer 4 and the reinforced layer 5 play a role in protecting the elastic layer 2 and reinforcing the strength of a deformation joint, and can form a reinforced structure with high water pressure resistance, extrusion resistance and deformation resistance. The bonding reinforcing layer 6 can promote the sufficient hydration of the reinforcing layer 5 and reduce the generation of cracks. The top coat 7 is made of elastic waterproof paint with adjustable color, such as polymer cement waterproof paint, epoxy resin waterproof paint, etc. The thickness of the coating film is flush with that of the outer coating layer 9, so that the anti-cracking effect is achieved, and the attractiveness and consistency of the coating layer are kept.

The utility model discloses a work progress demonstration:

the construction method comprises the following steps:

referring to fig. 1, the concrete structure and the attached dust are removed from the deformed seam by chiseling inward, thereby exposing the leakage points. The cement-based permeable crystallization type plugging agent is used for plugging open water to form a plugging layer 1, and relatively dry and stable construction conditions are formed for subsequent construction. A cavity is reserved outside the plugging layer 1 through a prefabricated part, a secondary plugging layer 3 is formed on the prefabricated part by using a cement-based permeable crystallization type plugging agent, and grouting holes are formed in the secondary plugging layer 3 according to a certain gap. And after the secondary plugging layer 3 meets the strength requirement, grouting resin gel mainly containing acrylate is poured into a reserved cavity between the plugging layer 1 and the secondary plugging layer 3 through a grouting hole to form an elastic layer 2. And coating a water permeable crystallization waterproof agent outside the secondary plugging layer 3 to form an adhesion reinforcing layer 4. And covering cement-based permeable crystallization type waterproof mortar outside the bonding reinforcement layer 4 for multiple times to form a reinforcement layer 5, and coating a water-based permeable crystallization waterproof agent outside the reinforcement layer 5 to form a bonding reinforcement layer 6. The elastic waterproof paint with pre-toning is coated outside the bonding reinforced layer 6 to form a finish coat 7, and the finish coat 7 is flush with the outer coating layer 9.

Wherein, the thickness of the secondary plugging layer 3 is 20mm, a phi 14 grouting hole is reserved, the needle gap is 100mm, and the grouting pressure is 0.5MPa.

And a second construction mode:

this construction demonstration, syringe needle clearance is 200mm, and other are the same with construction demonstration one.

The third construction mode:

this construction demonstration, the syringe needle clearance is 300mm, and other are the same with the construction demonstration one.

The construction method is as follows:

this construction demonstration, the syringe needle clearance is 400mm, and other are the same with the construction demonstration one.

And (3) respectively carrying out leakage test on the deformation joint construction structures constructed by the four construction modes for 7 days, 28 days and 90 days, wherein the leakage test results are shown in the table below.

Leakage test result table for four construction modes

Finally, the above preferred embodiments are only intended to illustrate the technical solution of the present invention and not to limit it, and although the present invention has been described in detail by the above preferred embodiments, it should be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the present invention as defined by the appended claims.

Claims (7)

1. The utility model provides a movement joint stagnant water reinforced structure which characterized in that: the sealing and plugging device comprises a sealing and plugging layer (1), a secondary sealing and plugging layer (3), an elastic layer (2) arranged between the sealing and plugging layer (1) and the secondary sealing and plugging layer (3) in a filling mode, a bonding reinforcing layer (4) covered outside the secondary sealing and plugging layer (3), and a mortar reinforcing layer (5) covered outside the bonding reinforcing layer (4).

2. A deformation joint water stopping and reinforcing structure according to claim 1, characterized in that: the secondary plugging layer (3) is provided with a grouting hole which penetrates through the secondary plugging layer (3) and is used for filling the elastic layer (2) between the plugging layer (1) and the secondary plugging layer (3).

3. A deformation joint water stopping and reinforcing structure according to claim 2, characterized in that: the distance between the grouting holes is 100-400mm.

4. A deformation joint water stopping and reinforcing structure according to claim 1, characterized in that: the elastic layer (2) is made of resin gel for acrylate grouting, and the blocking layer (1) and the secondary blocking layer (3) are made of cement-based permeable crystallization type plugging agents; the bonding reinforcing layer (4) is made of a water-based capillary crystalline waterproof agent; the mortar reinforcing layer (5) is made of cement-based permeable crystallization type waterproof mortar.

5. A deformation joint water stop reinforcing structure according to any one of claims 1 to 4, characterized in that: the mortar bonding reinforcement layer is characterized by further comprising two bonding reinforcement layers (6) covering the outside of the mortar bonding reinforcement layer (5) and an elastic finishing coat (7) covering the outside of the two bonding reinforcement layers (6), wherein the elastic finishing coat (7) is flush with the outer coating (9).

6. A deformation joint water stopping and reinforcing structure according to claim 5, characterized in that: the two bonding reinforcing layers (6) are made of water-based capillary crystalline waterproofing agent; the elastic finishing coat (7) is made of elastic waterproof paint capable of adjusting colors.

7. A deformation joint water stopping and reinforcing structure according to claim 5, characterized in that: the elastic finishing coat (7) is made of polymer cement waterproof paint or epoxy resin waterproof paint.

Images