Prefabricated high-temperature-resistant waterproof device

Abstract

The utility model discloses a prefabricated high-temperature-resistant waterproof device which comprises a waterproof plate, a buffer layer and a preassembling belt, and the plate face of one side of the waterproof plate is coated with mucilage glue. The buffer layer is attached to one side plate surface of the waterproof plate through mucilage glue, and a hook ring is arranged on the surface of one side, away from the waterproof plate, of the buffer layer; the belt face of one side of the preassembling belt can be tightly attached and fixed to the surface of a primary lining of the tunnel, the belt face of the other side of the preassembling belt is provided with a hook body capable of being connected with the hook ring in a hooked mode, and the preassembling belt is connected with the buffering layer through the hook ring and the hook body. The waterproof device is good in high-temperature resistance and easy and convenient to install, the preassembled belt is laid on the upstream face of the primary lining of the tunnel through the air row nails, the preassembled belt and the buffer layer are prefabricated into a coiled material when the waterproof plate is machined, the waterproof plate fixed with the buffer layer is directly spread in the installation process, and after the waterproof plate fixed with the buffer layer is laid in place, the waterproof device can be installed conveniently. When the waterproof plate is pressed, the hook ring on the buffer layer and the hook body on the preassembling belt can be hooked and cannot be separated from each other.

Description

Technical Field

[0001] The utility model relates to the field of waterproof structures, and more particularly to a prefabricated high-temperature resistant waterproof device. Background Art

[0002] The waterproof layer of the existing tunnel lining is set up as: buffer layer + waterproof layer. The buffer layer is a permeable geotextile made of synthetic fibers through needle punching or weaving. The waterproof layer is a polymer waterproof board set between the sprayed anchor support layer and the concrete secondary lining. The waterproof layer is divided into ordinary waterproof board and self-adhesive waterproof board according to its structural form and construction method.

[0003] Ordinary waterproof boards are homogeneous sheets, and the construction process is as follows: first, use nails to fix the hot-melt liner and geotextile on the sprayed concrete, and the hot-melt liner is distributed in a plum blossom shape. Then, use an electric hot press welder or an ultrasonic welder to hot-melt weld the waterproof board and the hot-melt gasket to each other firmly. This waterproof layer has the following disadvantages: the underground project is in a high-temperature environment, and the hot-melt gasket is deformed at high temperature, which can easily cause insufficient bonding strength with the waterproof board and cause the waterproof board to fall off. The waterproof quality is difficult to guarantee, and due to the high labor intensity of holding the welder for a long time at the laying site, the consistency of manual welding quality is difficult to ensure; the self-adhesive waterproof board is a composite structure of waterproof board, pressure-sensitive adhesive and Velcro. The construction process is as follows: first, use nails to fix the geotextile on the sprayed concrete, and use Velcro to bond the self-adhesive waterproof board to the geotextile. This waterproof layer has the following disadvantages: the cohesive force of the pressure-sensitive adhesive decreases under high temperature conditions, and the bonding strength between the Velcro decreases, causing the self-adhesive waterproof board and the geotextile to fall off, and it is impossible to achieve a firm bond between the waterproof layers.

[0004] Therefore, how to provide a prefabricated high-temperature resistant and waterproof device that can overcome the above problems is a problem that technical personnel in this field urgently need to solve. Utility Model Content

[0005] In view of this, the utility model provides a prefabricated high-temperature resistant waterproof device.

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

[0007] A prefabricated high-temperature resistant waterproof device comprises: a waterproof board, a buffer layer and a pre-installed belt, wherein one side surface of the waterproof board is coated with adhesive; the buffer layer is attached to one side surface of the waterproof board by the adhesive, and a hook and loop is provided on the side surface of the buffer layer away from the waterproof board; one side surface of the pre-installed belt can be tightly fixed to the surface of the primary lining of the tunnel, and the other side surface of the pre-installed belt is provided with a hook body that can be hooked to the hook and loop, and the pre-installed belt is connected to the buffer layer via the hook and loop and the hook body.

[0008] Through the above technical solutions, it can be seen that compared with the prior art, the present invention discloses a prefabricated high-temperature resistant waterproof device. The waterproof device in the present application has good high-temperature resistance and is suitable for the waterproof layer of underground projects with an ambient temperature of 50°C or above. The present application solves the problem that ordinary waterproof boards and hot-melt pads are difficult to weld in a high-temperature environment and the pressure-sensitive adhesive of the self-adhesive waterproof board has reduced bonding performance after heating, thereby ensuring the construction quality of the waterproof layer in a high-temperature environment. The waterproof device in the present application has a simple installation process, high laying efficiency, and can reduce construction costs. The pre-installed belt is laid on the water-facing surface of the primary lining of the tunnel through air nails, and the buffer layer and the two are prefabricated into a roll when the waterproof board is processed. During installation, the waterproof board with the buffer layer fixed can be directly laid out. After the waterproof board with the buffer layer fixed is laid in place, the waterproof board is pressed, and the hook and loop on the buffer layer can be hooked with the hook body on the pre-installed belt, and the two will not be separated. On the one hand, the buffer layer can be reliably fixed to the pre-installed belt, and on the other hand, this fixing method is simple and has high laying efficiency.

[0009] Preferably, the waterproof board is made of polyethylene, ethylene-vinyl acetate copolymer or polyvinyl chloride. The waterproof board has excellent high temperature resistance.

[0010] Preferably, the thickness of the waterproof board is 1.2 mm to 2.5 mm. The waterproof board has high strength and is not easily punctured.

[0011] Preferably, a plurality of hooks and loops are evenly fixed on the surface of the buffer layer away from the waterproof board, and a plurality of hooks are evenly fixed on one side of the pre-installed belt. The pre-installed belt and the buffer layer can be reliably connected and fixed.

[0012] Preferably, the buffer layer is a hot-sintered geotextile, the high-temperature sintered surface of the buffer layer is bonded to the waterproof board through the viscose, and the weight of the buffer layer is 300-400g / m 2 The buffer layer has good high temperature resistance.

[0013] Preferably, the hook ring is integrally formed on the surface of the buffer layer away from the high-temperature sintering surface thereof. The hook ring can be reliably arranged.

[0014] Preferably, the adhesive is a thermosetting resin adhesive, which has good bonding properties and ensures reliable bonding between the waterproof board and the buffer layer.

[0015] Preferably, the adhesive is in the form of a long strip, with a width of 50 cm or greater, and multiple strips of adhesive are arranged equidistantly along the length of the waterproof board, with a distance of 50-100 cm between each adjacent strip. This allows the waterproof board and the buffer layer to be securely fixed together, with a high degree of fit between the two.

[0016] Preferably, the length direction of the pre-installed tape is the same as the length direction of the adhesive, and a plurality of pre-installed tapes are provided, and the plurality of pre-installed tapes are arranged equidistantly along the length direction of the waterproof board. The buffer layer to which the waterproof board is fixed can be reliably fixed to the surface of the primary lining of the tunnel by the plurality of pre-installed tapes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0018] Figure 1 It is a cross-sectional view of a prefabricated high-temperature resistant and waterproof device;

[0019] Figure 2 It is a schematic diagram of the hook body and hook and loop connection of a prefabricated high-temperature resistant waterproof device.

[0020] In the figure:

[0021] 1 is a waterproof sheet, 2 is adhesive, 3 is a buffer layer, 4 is a hook and loop, 5 is a pre-installed belt, and 6 is a hook body. DETAILED DESCRIPTION

[0022] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] The utility model discloses a prefabricated high-temperature resistant waterproof device. The waterproof device in the present application has good high-temperature resistance and is suitable for use as a waterproof layer in underground projects with an ambient temperature of 50°C or above.

[0024] The present application solves the problem that ordinary waterproof sheets 1 and hot-melt pads are difficult to weld in a high-temperature environment and that the adhesive performance of the pressure-sensitive adhesive of the self-adhesive waterproof sheet 1 decreases after being heated, thereby ensuring the construction quality of the waterproof layer in a high-temperature environment.

[0025] The waterproof device of the present application has a simple installation process and high laying efficiency, which can reduce construction costs. The pre-installed tape 5 is laid on the surface of the primary lining of the tunnel by air nails. The buffer layer 3 and the waterproof board 1 are prefabricated into a roll when the buffer layer 3 is processed. When installing, the waterproof board 1 with the buffer layer 3 fixed thereon can be directly rolled out. After the waterproof board 1 with the buffer layer 3 is laid in place, the waterproof board 1 is pressed. The hook ring 4 on the buffer layer 3 and the hook body 6 on the pre-installed tape 5 can be hooked, and the two will not be separated. On the one hand, the buffer layer 3 can be reliably fixed to the pre-installed tape 5. On the other hand, this fixing method is simple and has high laying efficiency.

[0026] The waterproof device in this application has high construction quality, enhances the close contact with the initial support surface, reduces the risk of tunnel vault cavities, and ensures that the waterproof board 1 is laid with appropriate tightness.

[0027] Example

[0028] See attached Figure 1-2 The figure is a schematic diagram of the overall and partial structures of an embodiment of the present invention. The present invention specifically discloses a prefabricated high-temperature resistant waterproof device, comprising: a waterproof board 1, a buffer layer 3 and a pre-installed belt 5;

[0029] The waterproof board 1 in the present application is a rectangular board with elasticity. One side of the waterproof board 1 is coated with adhesive 2. The adhesive 2 applied to the waterproof board 1 is in the form of a long strip, and the width of the adhesive 2 is greater than or equal to 50 cm. The adhesive 2 is arranged in multiple strips at equal intervals along the length of the waterproof board 1. The distance between each adjacent strip of adhesive 2 is 50-100 cm. The adhesive 2 in the present application is a thermosetting resin adhesive, which has the characteristics of high bonding strength, heat resistance, and aging resistance.

[0030] The buffer layer 3 is attached to one side of the waterproof sheet 1 by means of adhesive 2. A hook and loop 4 is provided on the side of the buffer layer 3 facing away from the waterproof sheet 1. The waterproof sheet 1 is fixed to the buffer layer 3 by adhesive 2 before being processed and shipped. The waterproof sheet 1 and the buffer layer 3 are prefabricated into a roll material for easy transportation and laying later. Specifically, the waterproof sheet 1 is plasticized and extruded by a screw extruder, and the adhesive 2 is applied to the surface of the waterproof sheet 1. The buffer layer 3 and the waterproof sheet 1 are then heat-applied and roller-pressed to produce a roll material of the waterproof sheet 1 provided with the buffer layer 3.

[0031] One side of the pre-installed tape 5 can be tightly fixed to the surface of the primary lining of the tunnel. Specifically, after one side of the pre-installed tape 5 is tightly attached to the surface of the primary lining of the tunnel, the pre-installed tape 5 is nailed to the primary lining of the tunnel using air nails. The other side of the pre-installed tape 5 is provided with a hook body 6 that can be hooked with the hook ring 4. The hook body 6 in this application is in the shape of a curved hook or a mushroom, and its length is 0.5-1.5 mm. When the hook body 6 is in the shape of a mushroom, specifically, the hook body 6 includes a rod body and a protrusion, and the outer diameter of the protrusion is larger than the cross-sectional outer diameter of the rod body. One end of the rod is connected to the pre-installed belt 5, and the other end of the rod is coaxially fixed with the protrusion. The protrusion can pass through the elastic hook ring 4, that is, the hook ring 4 can be limited between the protrusion and the pre-installed belt 5, thereby realizing the hook connection between the hook ring 4 and the hook body 6; the pre-installed belt 5 is connected to the buffer layer 3 through the hook ring 4 and the hook body 6; the material of the pre-installed belt 5 is nylon, polypropylene or polyester. The pre-installed belt 5 of the above material has excellent mechanical properties, high mechanical strength, good toughness and acid and alkali resistance, and is not afraid of mold or insect infestation, has a long service life and good economic benefits.

[0032] The waterproof board 1 in this application is made of heat-resistant and waterproof materials. The material of the waterproof board 1 is polyethylene, ethylene-vinyl acetate copolymer, or polyvinyl chloride. The waterproof board 1 can meet the requirements of long-term use in ambient temperatures of 50°C and above. The waterproof board 1 made of the above materials has high strength, good elasticity, excellent elastic-plastic properties, and resistance to temperature changes, and has excellent waterproof performance.

[0033] In order to ensure the strength of the waterproof board 1 and avoid damage to the waterproof board 1, the thickness of the waterproof board 1 in this application is 1.2mm-2.5mm.

[0034] A plurality of hooks and loops 4 are evenly fixed on the surface of the buffer layer 3 away from the waterproof board 1; a plurality of hooks 6 are evenly fixed on the surface of one side of the pre-installed belt 5; this design can ensure that the buffer layer 3 and the pre-installed belt 5 are reliably connected and fixed.

[0035] The buffer layer 3 in this application is a hot-sintered geotextile. The high-temperature sintered surface of the buffer layer 3 is bonded to the waterproof board 1 through the adhesive 2. The weight of the buffer layer 3 is 300-400g / m 2 ;

[0036] The buffer layer 3 is integrally formed with a hook ring 4 on the side away from the high-temperature sintering surface. Specifically, the hook ring 4 of the buffer layer 3 is formed by stacking and raising the side of the buffer layer 3 away from the high-temperature sintering surface using a raising machine to form a plurality of hook rings 4. The plurality of hook rings 4 form a terry surface. The thickness of the terry surface is 1-3 mm, that is, the outer diameter of the hook ring 4 is 1-3 mm.

[0037] The length direction of the pre-installed tape 5 is the same as that of the adhesive 2 . A plurality of pre-installed tapes 5 are provided, and the plurality of pre-installed tapes 5 are arranged in sequence and at equal intervals along the length direction of the waterproof board 1 .

[0038] When the waterproof device is applied:

[0039] First, fix the pre-installed belt 5 on the surface of the primary lining of the tunnel, and then lay the waterproof board 1 with the buffer layer 3. After the buffer layer 3 is laid in place, press the buffer layer 3 evenly to ensure that the hook ring 4 and the hook body 6 are reliably hooked.

[0040] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0041] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A prefabricated high temperature resistant waterproof device, characterized in that: include: A waterproof board (1), a buffer layer (3) and a pre-installed tape (5), wherein one side of the waterproof board (1) is coated with adhesive (2); the buffer layer (3) is attached to one side of the waterproof board (1) through the adhesive (2); a hook and loop (4) is provided on the side of the buffer layer (3) away from the waterproof board (1); one side of the pre-installed tape (5) can be tightly fixed to the surface of the primary lining of the tunnel; the other side of the pre-installed tape (5) is provided with a hook body (6) that can be hooked to the hook and loop (4); the pre-installed tape (5) is connected to the buffer layer (3) through the hook and loop (4) and the hook body (6); The hook body (6) is mushroom-shaped and has a length of 0.5-1.5 mm. The hook body (6) includes a rod body and a protrusion. The outer diameter of the protrusion is larger than the cross-sectional outer diameter of the rod body. One end of the rod body is connected to the pre-installed belt (5), and the other end of the rod body is coaxially fixed with the protrusion. The protrusion can pass through the elastic hook ring (4), that is, the hook ring (4) can be limited between the protrusion and the pre-installed belt (5), thereby realizing the hook connection between the hook ring (4) and the hook body (6); the pre-installed belt (5) is connected to the buffer layer (3) through the hook ring (4) and the hook body (6).

2. A prefabricated high temperature resistant waterproof device according to claim 1, characterized in that: The material of the waterproof board (1) is polyethylene, ethylene-vinyl acetate copolymer or polyvinyl chloride.

3. The prefabricated high temperature resistant waterproof device according to claim 1, characterized in that: The thickness of the waterproof board (1) is 1.2 mm to 2.5 mm.

4. The prefabricated high temperature resistant waterproof device according to claim 1, characterized in that: A plurality of hooks and loops (4) are evenly fixed on the surface of the buffer layer (3) on one side away from the waterproof board (1); and a plurality of hook bodies (6) are evenly fixed on the surface of one side of the pre-installed belt (5).

5. The prefabricated high temperature resistant waterproof device according to claim 1, characterized in that: The buffer layer (3) is a hot-sintered geotextile. The high-temperature sintered surface of the buffer layer (3) is bonded to the waterproof board (1) via the viscose (2). The weight of the buffer layer (3) is 300-400 g / m 2 .

6. The prefabricated high temperature resistant waterproof device according to claim 5, characterized in that: The hook ring (4) is integrally formed on the surface of the buffer layer (3) on one side away from the high-temperature sintering surface thereof.

7. The prefabricated high temperature resistant waterproof device according to claim 1, characterized in that: The viscose (2) is a thermosetting resin adhesive.

8. The prefabricated high temperature resistant waterproof device according to claim 1, characterized in that: The viscose (2) is in the shape of a long strip, the width of the viscose (2) is greater than or equal to 50 cm, and the viscose (2) is arranged in multiple strips at equal intervals along the length direction of the waterproof board (1), and the distance between each two adjacent strips of the viscose (2) is 50-100 cm.

9. The prefabricated high temperature resistant waterproof device according to claim 7, characterized in that: The length direction of the pre-installed tape (5) is the same as the length direction of the adhesive (2), and a plurality of pre-installed tapes (5) are provided, and the plurality of pre-installed tapes (5) are arranged in sequence and at equal intervals along the length direction of the waterproof board (1).

Images