CN217517498U - Hydraulic concrete joint surface layer water stop structure - Google Patents

Abstract

The utility model relates to a concrete structure, specifically speaking relates to a water conservancy project concrete seam top layer stagnant water structure. It includes concrete layer, be provided with the seam on the concrete layer, fill on the inner wall of seam and scribble the seam interface layer that is used for reinforcing seam surface cohesiveness, the inside packing of seam has and is used for carrying out the sealed glue layer of seam, the upside of sealed glue layer is filled and is scribbled and carry out the confined isolation layer to the sealed glue layer, the concrete layer both sides of seam upper end are filled and are scribbled the surface interface layer, and the one end and the seam interface layer of surface interface layer are connected, the top of surface interface layer and isolation layer is filled and is scribbled the ageing-resistant anti-impact layer that is used for protecting the sealed glue layer. The utility model discloses an use the sealed glue of the cream body, with caulking machine or artifical the pointing all can be under construction, sealed glue, ageing-resistant anti-impact wearing layer and concrete base surface bonding are firm, the obscission can not appear, improves the stagnant water effect to the seam.

Description

Hydraulic concrete joint surface layer water stop structure

Technical Field

The utility model relates to a concrete structure, specifically speaking relates to a water conservancy project concrete seam top layer stagnant water structure.

Background

At present, the joint surface layer water stopping structure in a hydraulic building generally adopts expansion bolts and flat steel pressing strips to anchor a water stopping cover plate on a concrete panel and a toe board, and a flexible water stopping material is filled inside the water stopping structure to achieve the effect of sealing and stopping water. However, in cold regions, the water-stopping anchoring system of the seam fails due to the tensile and compressive stress, impact and repeated frost heaving of the ice cover, and the water-stopping effect is lost. The joint in the hydraulic structure is an important part for preventing crack and deformation, and has important significance for the stress transmission of the concrete and the structure thereof. The seam sealing and water stopping effect directly influences the use function, safety and durability of the water stopping device, and is extremely important. The problems of interface cracking, tearing, aging chap and the like of the existing sealant water-stop material of the concrete joint of the hydraulic structure and the problems of the material, the structural form, the reliability in operation and the like need to be solved by a sealant composition and a structure.

Disclosure of Invention

An object of the utility model is to provide a hydraulic concrete joint top layer stagnant water structure to solve the problem that proposes in the above-mentioned background art.

In order to realize the above-mentioned purpose, the utility model provides a hydraulic concrete connects top layer stagnant water structure, including concrete layer, the last seam that is provided with of concrete layer, it has the seam internal interface layer that is used for strengthening seam surface cohesiveness to fill on the inner wall of seam, the inside packing of seam has and is used for carrying out the sealed sealant layer that the seam is sealed, the upside of sealant layer is filled and is scribbled and carries out the confined isolation layer to sealant layer, the concrete layer both sides of seam upper end are filled and are scribbled the surface boundary layer, just the one end and the seam internal interface layer of surface boundary layer are connected, the top of surface boundary layer and isolation layer is filled and is scribbled the anti-aging anti-impact wearing layer that is used for protecting to sealant layer.

As a further improvement of the technical scheme, a reinforcing device used for limiting the position of the sealing adhesive layer is arranged inside the sealing adhesive layer and comprises two U-shaped reinforcing frames, and the two reinforcing frames are fixedly connected with connecting plates in a bilateral symmetry mode at the tops.

As a further improvement of the technical scheme, a positioning device used for enhancing the tensile resistance of the ageing-resistant and abrasion-resistant layer is arranged in the ageing-resistant and abrasion-resistant layer.

As a further improvement of the technical scheme, the positioning device comprises two attaching rods, a plurality of connecting plates are fixedly connected between the attaching rods, a through groove is formed between each connecting plate, and a plurality of arc-shaped expansion cavities are formed in the connecting plates along the length direction of the connecting plates.

As a further improvement of the technical scheme, a plurality of stabbing cones are fixedly connected to the bottom of each attaching rod along the length direction of the attaching rod, and a plurality of triangular upper clamping strips fixed on the connecting plate are arranged between the two attaching rods.

Compared with the prior art, the beneficial effects of the utility model are that:

1. in the hydraulic concrete joint surface layer water stop structure, the sealant of the paste body is used, the construction can be carried out by using a caulking machine or manual caulking, the requirement on the construction surface is not high, meanwhile, the ageing-resistant and impact-resistant wear-resistant layer material filled on the surface layer of the concrete layer is low in roughness and good in impermeability, and the problem of ice pushing and ice pulling is thoroughly solved. The sealant, the ageing-resistant abrasion-resistant layer and the concrete base surface are firmly bonded, so that the phenomenon of falling off is avoided, and the water stopping effect on the joint is improved.

2. In the water stop structure on the surface layer of the hydraulic concrete joint, the stress dispersion layer of the base fabric is reduced, the thickness of the coating is reduced, the steps of the process are reduced, and the cost is reduced; meanwhile, the sealant has certain impermeability, and the surface protective coating has the advantages of high impermeability, ice-pulling resistance, frost heaving extrusion resistance, good durability, attractive appearance and the like, so that the safety, durability and reliability of the seepage prevention of the joint of the hydraulic building can be obviously improved.

Drawings

FIG. 1 is a schematic view of the entire structure of embodiment 1;

FIG. 2 is a schematic view of the entire structure of embodiment 2;

FIG. 3 is a schematic view of the structure of a reinforcing apparatus according to embodiment 2;

FIG. 4 is a schematic view of the entire structure of embodiment 3;

FIG. 5 is a schematic view of a positioning apparatus according to embodiment 3;

fig. 6 is a schematic cross-sectional structural view of a positioning device in embodiment 3.

The various reference numbers in the figures mean:

1. concrete; 2. seaming; 3. an interface layer in the seam; 4. sealing the adhesive layer; 5. a surface interface layer; 6. an isolation layer; 7. an anti-aging and anti-abrasion layer; 8. a reinforcing device; 81. a reinforcing frame; 82. a connecting plate; 9. a positioning device; 91. attaching a rod; 92. a stabbing awl; 93. a through groove; 94. connecting plates; 95. mounting a clamping strip; 96. an inflation lumen.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Example 1

Please refer to fig. 1, the embodiment provides a hydraulic concrete joint surface water stop structure, which includes a concrete layer 1, a joint 2 is disposed on the concrete layer 1, a joint inner interface layer 3 for enhancing the surface cohesiveness of the joint is filled on the inner wall of the joint 2, a sealant layer 4 for sealing the joint 2 is filled inside the joint 2, an isolation layer 6 for sealing the sealant layer 4 is filled on the upper side of the sealant layer 4, surface interface layers 5 are filled on two sides of the concrete layer 1 on the upper end of the joint 2, one end of the surface interface layer 5 is connected with the joint inner interface layer 3, and aging-resistant and impact-resistant layers 7 for protecting the sealant layer 4 are filled on the top of the surface interface layers 5 and the isolation layer 6.

Wherein, the seam inner interface layer 3 adopts single-component interface agent, polyurethane is used, the sealant layer 4 adopts double-component polyurethane sealant, environment-friendly double-component polyurethane sealant is adopted, the quality loss rate of main performance indexes is less than or equal to 2 percent, the elastic recovery rate is more than or equal to 80 percent, the maximum tensile strength is more than or equal to 1MPa, the maximum elongation rate is more than or equal to 500 percent, the sealant is green and environment-friendly, the mechanical property is excellent, the sealant is suitable for seam deformation and completely meets the displacement compensation of the seam deformation of the hydraulic building, the surface interface layer 5 adopts double-component interface agent, epoxy is adopted, the isolating layer 6 adopts isolating agent, the anti-aging and anti-abrasion layer 7 adopts hand-scraping type double-component polyurea waterproof coating, the tensile strength is more than or equal to 16MPa, the elongation at break is more than or equal to 450 percent, the water impermeability can reach 2.0MPa,24h is impermeable, the artificial aging climate can reach 2000h, the waterproof coating has excellent water impermeability and aging resistance, and can resist the water pressure faced by the hydraulic building, and simultaneously, the problems of material fading and peeling caused by acid-base salt corrosion and ultraviolet aging can be solved.

When the surface water-stopping structure of the hydraulic concrete joint of the embodiment is used specifically,

firstly, seam treatment: the base surface of the joint 2 is cleaned, cooled and dried, and then the single-component interfacial agent can be coated to form the joint inner interface layer 3, and the construction thickness of the joint inner interface layer is about 0.1 mm-0.2 mm. After the surface of the interface agent is dried, the environment-friendly double-component polyurethane sealant is immediately filled to form a sealing adhesive layer 4, the construction width is not less than 10mm, the depth is not less than 7mm, the width-depth ratio is controlled to be 3:2-2:1, and the surface layer is flush with the upper surface of the concrete layer 1.

Secondly, surface layer treatment: after the environment-friendly double-component polyurethane sealant is dried completely, coating a release agent on the surface to form a release layer 6, sealing a sealant layer 4, coating a double-component interface agent on the concrete substrate after edge sealing treatment to form a surface interface layer 5, and immediately coating a hand-scraping type double-component polyurea waterproof coating after the surface of the double-component interface agent is dried to form an anti-aging and anti-impact wear layer 7, wherein the construction thickness is 1.0-2.0 mmm.

Meanwhile, the isolation layer is added between the aging abrasion-resistant layer and the sealing adhesive layer, the elongation at break of the protective layer is larger than 450%, the damage caused by the sinking dislocation of the joint or the concentrated stress generated by opening the joint edge can be avoided, and the deformation of the joint can be well adapted.

Example 2

In order to facilitate the fixing of the sealant layer 4 at the seam 2 with a large distance, referring to fig. 2-3, a reinforcing device 8 for limiting the position of the sealant layer 4 is disposed inside the sealant layer 4, the reinforcing device 8 includes two U-shaped reinforcing frames 81, and a connecting plate 82 is fixedly connected to the top between the two reinforcing frames 81 in a bilateral symmetry manner.

When the seam 2 is too big, put into seam 2 with reinforcing apparatus 8, establish the support through reinforcing apparatus 8 between seam 2, make the setting that sealant layer 4 can be stable in seam 2, be favorable to the sealed location of gluing of two-component polyurethane through the reinforcing apparatus 8 that sets up, strengthen the sealed stability of gluing of two-component polyurethane simultaneously.

Example 3

In order to enable the anti-aging and anti-abrasion layer 7 to still shield and protect the sealant layer 4 after being heated, referring to fig. 4-6, a positioning device 9 for enhancing the tensile resistance of the anti-aging and anti-abrasion layer 7 is arranged inside the anti-aging and anti-abrasion layer 7, the positioning device 9 comprises two attaching rods 91, a plurality of connecting plates 94 are fixedly connected between the attaching rods 91, a through groove 93 is formed between each connecting plate 94, a plurality of arc-shaped expansion cavities 96 are formed inside the connecting plates 94 along the length direction of the connecting plates 94, a plurality of stabbing cones 92 are fixedly connected to the bottom of each attaching rod 91 along the length direction of the attaching rod 91, and a plurality of triangular upper clamping strips 95 fixed on the connecting plates 94 are arranged between the two attaching rods 91.

When hand-scraping type double-component polyurea waterproof paint is filled, the positioning device 9 is placed into the hand-scraping type double-component polyurea waterproof paint, the positioning device 9 is enabled to protect the anti-aging and anti-abrasion layer 7, the arranged stabbing cones 92 and the upper clamping strips 95 enhance the stability of the positioning device 9 in the hand-scraping type double-component polyurea waterproof paint, meanwhile, when the outside is high in temperature, the expansion cavities 96 are expanded, the positioning device 9 is enabled to expand along with the anti-aging and anti-abrasion layer 7, the positioning device 9 is prevented from being displayed in the anti-aging and anti-abrasion layer 7 when the anti-aging and anti-abrasion layer 7 is heated, meanwhile, the anti-aging and anti-abrasion layer 7 is protected through the positioning device 9, the anti-aging and anti-abrasion layer 7 cannot crack when being heated, the sealing glue layer 4 is protected better, and the sealing glue layer 4 can seal the seam 2 conveniently.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only the preferred embodiments of the present invention, and is not intended to limit the present invention, and that there may be various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (5)

1. The utility model provides a hydraulic concrete joint top layer stagnant water structure, includes concrete layer (1), its characterized in that: be provided with seam (2) on concrete layer (1), it has seam internal interface layer (3) that are used for strengthening seam surface cohesiveness to fill on the inner wall of seam (2), the inside packing of seam (2) has and is used for carrying out sealed sealant layer (4) with seam (2), the upside of sealant layer (4) is filled and is scribbled and carries out confined isolation layer (6) to sealant layer (4), concrete layer (1) both sides of seam (2) upper end are filled and are scribbled surface interface layer (5), just the one end and the seam internal interface layer (3) of surface interface layer (5) are connected, the top of surface interface layer (5) and isolation layer (6) is filled and is scribbled ageing-resistant anti-abrasion layer (7) that are used for protecting sealant layer (4).

2. The water conservancy project concrete joint surface layer stagnant water structure of claim 1, characterized in that: the inside of sealing glue film (4) is provided with and is used for carrying out reinforcing apparatus (8) of restriction to the position of sealing glue film (4), reinforcing apparatus (8) include two reinforcement frame (81) that are the U-shaped, two top bilateral symmetry fixedly connected with connecting plate (82) between reinforcement frame (81).

3. The water conservancy project concrete joint top layer stagnant water structure of claim 1 characterized in that: and a positioning device (9) used for enhancing the tensile resistance of the ageing-resistant and abrasion-resistant layer (7) is arranged in the ageing-resistant and abrasion-resistant layer (7).

4. The water conservancy project concrete joint top layer stagnant water structure of claim 3 characterized in that: positioner (9) include two attached pole (91), a plurality of even boards (94) of fixedly connected with between attached pole (91), and all be equipped with between every even board (94) and lead to groove (93), a plurality of is curved inflation chamber (96) along the direction of even board (94) length has been seted up to the inside of even board (94).

5. The water conservancy project concrete joint surface layer stagnant water structure of claim 4, characterized in that: the bottom of the attaching rod (91) is fixedly connected with a plurality of stabbing cones (92) along the length direction of the attaching rod (91), and a plurality of triangular upper clamping strips (95) fixed on the connecting plate (94) are arranged between the two attaching rods (91).

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