Waterproof and drainage type reinforced back-attached water-stop belt

Abstract

The utility model discloses a waterproof and drainage type reinforced back-attached waterstop, which relates to the technical field of tunnel building construction and comprises a waterstop body, drainage structures are arranged on two sides of the waterstop body along the length direction of the waterstop body, and the top end of each drainage structure is an open end; and the geotechnical cloth is fixed at the opening end of the drainage structure. The drainage effect of the waterstop is improved by arranging the drainage structure, meanwhile, the anchoring capacity of the waterstop body and concrete can be enhanced through the drainage structure, and then the waterproof effect is improved; the drainage structure is sealed through the geotechnical cloth, concrete can be effectively prevented from being poured into the drainage structure to affect the drainage effect, meanwhile, the geotechnical cloth has a good water guiding effect, when water leakage occurs, the leakage water can be preferentially drained into the drainage structure, and the leakage water is prevented from leaking towards the interior of a building along a gap between the waterstop body and the concrete.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, and more specifically to a drainage and waterproof reinforced back-adhesive waterstop belt. Background Art

[0002] In tunnel engineering construction, due to the segmented pouring of concrete, construction joints will be formed; deformation joints are provided to adapt to the uneven settlement of the tunnel structure. To prevent water leakage at the construction joints and deformation joints, rubber waterstop belts are arranged at the concrete joints to prevent water leakage problems. The rubber waterstop belt is made of rubber. During installation and construction, due to its own gravity, the flow of concrete, and the vibration of concrete, the waterstop belt will shift and deform and cannot be firmly anchored in the concrete, making the waterstop belt unable to effectively play its waterstop performance.

[0003] Currently, the methods for preventing water leakage at the joints of mined tunnels mostly combine embedded rubber waterstop belts and back-adhesive waterstop belts. The main reasons for the waterproof failure of such waterstop belts are as follows: the adhesion between the waterstop belt and the concrete is insufficient, resulting in easy slippage, and groundwater seeps along the gap between the concrete and the waterstop belt, thus causing leakage; the seepage water continuously accumulates between the primary lining and the secondary lining concrete above the waterstop belt or the seepage water flow is too large, resulting in ineffective drainage, increasing the hidden danger of water leakage of the waterstop belt; the deformation ability of the waterstop belt is weak. When uneven settlement, stretching, compression and other deformations occur at the deformation joint, the waterstop belt is damaged, thus causing leakage.

[0004] Therefore, how to provide a drainage and waterproof reinforced back-adhesive waterstop belt that can improve the drainage effect and waterproof performance of the waterstop belt is an urgent problem to be solved by those skilled in the art. Summary of the Utility Model

[0005] In view of this, the utility model provides a drainage and waterproof reinforced back-adhesive waterstop belt, aiming to solve one of the problems in the above background art. By setting a drainage structure, the drainage effect of the waterstop belt is improved, and by setting an adhesive part, the waterproof performance of the waterstop belt is improved. The waterproof and drainage performances are comprehensively improved, and the waterstop effect of the waterstop belt is more effectively enhanced.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a drainage and waterproof reinforced back-adhesive waterstop belt, including:

[0008] A waterstop belt body, on both sides of which along its length direction, a drainage structure is provided, and the top end of the drainage structure is an open end;

[0009] A geotextile, which is fixed at the open end of the drainage structure and is used to seal the open end.

[0010] The waterstop strip with drainage prevention and enhanced back adhesive according to the present utility model further includes an adhesive member, which is bonded below the waterstop strip body and is used to bond the waterstop strip body to the concrete.

[0011] The waterstop strip with drainage prevention and enhanced back adhesive according to the present utility model further includes an anchoring rib, which is arranged between the two drainage structures below the waterstop strip body and is integrally formed with the waterstop strip body.

[0012] For the waterstop strip with drainage prevention and enhanced back adhesive according to the present utility model, a plurality of anchoring ribs are provided, and the plurality of anchoring ribs are arranged at intervals in the width direction of the waterstop strip body between the two drainage structures.

[0013] For the waterstop strip with drainage prevention and enhanced back adhesive according to the present utility model, the adhesive member is bonded between the anchoring rib and the drainage structure and / or is arranged between adjacent anchoring ribs.

[0014] For the waterstop strip with drainage prevention and enhanced back adhesive according to the present utility model, the open end of the drainage structure is a reduced opening structure, both ends of the geotextile are respectively connected to both sides of the open end of the drainage structure, and the middle part of the geotextile is recessed into the drainage structure.

[0015] For the waterstop strip with drainage prevention and enhanced back adhesive according to the present utility model, stepped surfaces are provided at the open ends on both sides of the drainage structure, and both ends of the geotextile are respectively bonded to the stepped surfaces.

[0016] For the waterstop strip with drainage prevention and enhanced back adhesive according to the present utility model, the middle part of the waterstop strip body is recessed downward to form a recessed deformation area, and the opening of the recessed deformation area is a reduced opening structure.

[0017] For the waterstop strip with drainage prevention and enhanced back adhesive according to the present utility model, both ends of the waterstop strip body in its width direction are in an axisymmetric structure.

[0018] It can be seen from the above technical solutions that, compared with the prior art, the present utility model discloses a waterstop strip with drainage prevention and enhanced back adhesive. By setting the drainage structure, the drainage effect of the waterstop strip is improved, and at the same time, the drainage structure can also enhance the anchoring ability between the waterstop strip body and the concrete, thereby improving the waterproof effect. By using the geotextile to seal the drainage structure, it can effectively prevent the concrete from pouring into the drainage structure and affecting the drainage effect. At the same time, the geotextile has a good water guiding effect. When water leakage occurs, the water leakage can be preferentially discharged into the drainage structure to prevent the water leakage from leaking into the building interior along the gap between the waterstop strip body and the concrete. Description of the Drawings

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0020] Figure 1 The structural schematic diagram of the waterproof and drainage type reinforced back - stuck waterstop provided by the present invention applied to the construction joint;

[0021] Figure 2 The structural schematic diagram of the waterproof and drainage type reinforced back - stuck waterstop provided by the present invention applied to the deformation joint;

[0022] Figure 3 The structural schematic diagram of the water seepage direction at the drainage structure provided by the present invention.

[0023] In the figure: 1 is the waterstop body; 2 is the geotextile; 3 is the bonding part; 4 is the drainage structure; 5 is the anchoring rib; 6 is the sunken deformation area; 7 is the concrete. Detailed implementation manners

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0025] See Figure 1 , the embodiments of the present invention disclose a waterproof and drainage type reinforced back - stuck waterstop, including: a waterstop body 1, a geotextile 2 and a bonding part 3.

[0026] On both sides of the waterstop body 1 along its length direction, drainage structures 4 are provided, and the top ends of the drainage structures 4 are open ends. Specifically, drainage structures 4 are provided at both lower ends of the waterstop body 1. The drainage structure 4 preferably adopts a U - shaped drainage ditch structure. The two drainage structures 4 are symmetric with respect to the center line of the waterstop body 1. The waterstop body 1 is processed by an extrusion process.

[0027] The geotextile 2 is fixed at the open end of the drainage structure 4 for sealing the open end. The geotextile 2 is used to seal the drainage structure 4. The geotextile 2 preferably selects a short - fiber geotextile 2 with good water permeability.

[0028] When the waterproof and drainage type enhanced back - stuck waterstop is applied during the construction joint construction, drainage structures 4 are arranged at both lower ends of the waterstop body 1. The drainage structures 4 can improve the anchoring ability of the waterstop body 1 and the concrete 7; and a geotextile 2 is used to seal the drainage structures 4 to prevent the concrete 7 from flowing into and blocking the drainage structures 4 during the pouring process. At the same time, the geotextile 2 also has a certain water - guiding effect and can effectively guide the seepage water into the drainage structures 4. The geotextile 2 is compounded with the drainage structures 4 using a polymer self - adhesive to prevent the geotextile 2 from falling off the waterstop body 1 due to external forces during packaging, transportation, and installation of the waterstop body 1.

[0029] In some embodiments, it further includes an adhesive member 3. The adhesive member 3 is bonded below the waterstop body 1 and is used to bond the waterstop body 1 and the concrete 7. The adhesive member 3 preferably uses a polymer self - adhesive, and at the same time, the geotextile 2 is also bonded to the waterstop body 1 using a polymer self - adhesive. Through the arrangement of the adhesive member 3, when the leakage is serious, water seepage problems will occur along the gap between the waterstop body 1 and the concrete 7 into the interior of the building structure. At this time, the adhesive member 3 can effectively block the seepage route and improve the waterproof performance of the waterstop.

[0030] In some embodiments, the waterproof and drainage type enhanced back - stuck waterstop further includes an anchoring rib 5. The anchoring rib 5 is arranged between the two drainage structures 4 below the waterstop body 1, and the anchoring rib 5 is integrally formed with the waterstop body 1. In this embodiment, both the anchoring rib 5 and the drainage structures 4 are located on the same side of the waterstop body 1. The arrangement of the anchoring rib 5 increases the anchoring performance of the waterstop body 1 in the concrete 7 and prevents the waterstop body 1 from falling off due to reasons such as the thermal expansion and contraction of the concrete 7 and the settlement of the tunnel.

[0031] In some embodiments, there are multiple anchoring ribs 5. The multiple anchoring ribs 5 are arranged at intervals in the width direction of the waterstop body 1 between the two drainage structures 4. In this embodiment, preferably, there are two anchoring ribs 5. The two anchoring ribs 5 are arranged at intervals in the width of the waterstop body 1 between the two drainage structures 4, and the two anchoring ribs 5 are symmetric about the center of the waterstop body 1. The arrangement of the two anchoring ribs 5 can further increase the anchoring performance of the waterstop body 1 in the concrete 7.

[0032] In some embodiments, the bonding member 3 is bonded between the anchoring rib 5 and the drainage structure 4 and / or disposed between adjacent anchoring ribs 5. Preferably, when there are two anchoring ribs 5, the bonding member 3 is disposed on the lower surface of the waterstop body 1 between the anchoring rib 5 and the drainage structure 4, and the bonding member 3 is centrosymmetric with respect to the center of the waterstop body 1. The bonding member 3 can bond the waterstop body 1 and the concrete 7 into an integral body. When the leakage is severe, water seepage problems will occur along the gap between the waterstop body 1 and the concrete 7 into the building interior. At this time, the bonding member 3 can effectively block the seepage route and improve the waterproof performance of the waterstop body 1. In some other embodiments, when the number of the anchoring ribs 5 is greater than two, the bonding member 3 can be disposed only between the waterstop body 1 between the anchoring rib 5 and the drainage structure 4, or the bonding member 3 can be disposed both between the waterstop body 1 between the anchoring rib 5 and the drainage structure 4 and between adjacent anchoring ribs 5, which can not only improve the waterproof performance of the waterstop body 1, but also enhance the bonding strength between the waterstop body 1 and the concrete 7.

[0033] In some embodiments, the open end of the drainage structure 4 is a reduced opening structure. Both ends of the geotextile 2 are respectively connected to both sides of the open end of the drainage structure 4, and the middle part of the geotextile 2 is recessed into the drainage structure 4. With such a setting, when water seeps to the periphery of the waterstop body 1, since the waterstop body 1 and the concrete 7 are closely attached, the seepage direction of water will not seep along the gap between the waterstop body 1 and the concrete 7. The seepage water will preferentially flow along the geotextile 2. Through the guidance of the geotextile 2 for the seepage water, the seepage water is guided into the drainage structure 4, and then the seepage water is concentrated by the drainage structure 4 and discharged through the drainage blind pipe. The drainage blind pipe is a structure used in combination with the waterstop in the prior art and will not be elaborated here. The specific seepage direction can be seen Figure 3 in the direction indicated by the arrow in

[0034] In some embodiments, step surfaces are provided at both open ends on both sides of the drainage structure 4, and both ends of the geotextile 2 are respectively bonded to the step surfaces. With such a setting, the step surface can play a role of guiding and limiting the bonding of the geotextile 2, so that the geotextile 2 is more accurately bonded to the open end of the drainage structure 4.

[0035] See Figure 2 , in some embodiments, when the waterproof and drainage type reinforced back-adhesive waterstop is used in the construction process of the deformation joint, the middle part of the waterstop body 1 is recessed downward to form a recessed deformation zone 6, and the opening of the recessed deformation zone 6 is a reduced opening structure. With such a setting, the recessed deformation zone 6 is used to meet the gap deformation caused by reasons such as the thermal expansion and contraction of the tunnel concrete 7 and the settlement of the tunnel.

[0036] In some embodiments, both ends of the waterstop body 1 in its width direction are axially symmetric structures.

[0037] In the above embodiments, the materials used for the waterproof and drainage reinforced back-bonding waterstop are processed and formed by an extrusion process.

[0038] In this specification, the various embodiments are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the various embodiments, reference can be made to each other. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple. For the relevant parts, reference can be made to the description in the method section.

[0039] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A waterproof and drainage reinforced back-stick waterstop, characterized in that: include: A waterstop body, wherein drainage structures are arranged on both sides of the waterstop body along its length direction, and the top of the drainage structure is an open end; A geotextile fixed to the open end of the drainage structure to seal the open end; The opening end of the drainage structure is a constricted structure, the two ends of the geotextile are respectively connected to the two sides of the opening end of the drainage structure, and the middle part of the geotextile is recessed into the drainage structure.

2. The anti-drainage reinforced back-stick waterstop according to claim 1 is characterized in that: It also includes an adhesive, which is bonded to the bottom of the waterstop body and is used to bond the waterstop body to concrete.

3. The anti-drainage reinforced back-stick waterstop according to claim 2 is characterized in that: It also includes an anchor rib, which is arranged between the two drainage structures below the waterstop belt body, and the anchor rib is integrally formed with the waterstop belt body.

4. The anti-drainage reinforced back-stick waterstop according to claim 3 is characterized in that: A plurality of anchoring ribs are provided, and the plurality of anchoring ribs are arranged at intervals between two drainage structures along the width direction of the water stop strip body.

5. The anti-drainage reinforced back-attached waterstop according to claim 4 is characterized in that: The adhesive member is bonded between the anchor rib and the drainage structure and / or is arranged between adjacent anchor ribs.

6. The anti-drainage reinforced back-attached waterstop according to claim 1 is characterized in that: The opening ends on both sides of the drainage structure are provided with step surfaces, and the two ends of the geotextile are respectively bonded to the step surfaces.

7. The anti-drainage reinforced back-attached waterstop according to claim 1 is characterized in that: The middle part of the water stop body is recessed downward to form a recessed deformation zone, and the opening of the recessed deformation zone is a shrinkage structure.

8. The anti-drainage reinforced back-attached waterstop according to claim 1 is characterized in that: The water stop strip body has an axisymmetric structure at both ends in the width direction.

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