Prefabricated high-temperature-resistant waterproof device

Abstract

The prefabricated high-temperature-resistant waterproof device 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 invention 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 arranged 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 board is a homogeneous sheet, and the construction process is as follows: first, fix the hot-melt liner and geotextile on the shotcrete with nails, and the hot-melt liner is distributed in a plum blossom shape, and then use an electric hot press welder or an ultrasonic welding machine to hot-melt weld the waterproof board and the hot-melt gasket to each other firmly. The 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, making it difficult to ensure the waterproof quality. In addition, due to the high labor intensity of holding the welder for a long time at the laying site, it is difficult to ensure the consistency of manual welding quality; the self-adhesive waterproof board is a composite structure of waterproof board, pressure-sensitive adhesive and Velcro, and the construction process is as follows: first, fix the geotextile on the shotcrete with nails, and bond the self-adhesive waterproof board to the geotextile with Velcro. The 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 pressure-sensitive adhesive and the Velcro decreases, causing the self-adhesive waterproof board and the geotextile to fall off, and the waterproof layer cannot be firmly bonded.

[0004] Therefore, how to provide a prefabricated high temperature resistant and waterproof device that can overcome the above problems is an issue that technical personnel in this field urgently need to solve. Summary of the invention

[0005] In view of this, the present invention provides a prefabricated high temperature resistant and waterproof device.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[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 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 with the hook, and the pre-installed belt is connected to the buffer layer through the hook and the hook.

[0008] Through the above technical solutions, it can be known 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 underground engineering waterproof layers with ambient temperatures of 50°C and above. The present application solves the problem that ordinary waterproof boards and hot-melt pads are difficult to weld in high-temperature environments and that the pressure-sensitive adhesive of self-adhesive waterproof boards has reduced bonding performance after being heated, thereby ensuring the construction quality of waterproof layers in high-temperature environments. The waterproof device in the present application has a simple installation process and high laying efficiency, which 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 is prefabricated into a roll when the waterproof board is processed. When installing, the waterproof board with the buffer layer fixed can be directly spread out. After the waterproof board with the buffer layer fixed is laid in place, the waterproof board is pressed, and the hook ring on the buffer layer and the hook body on the pre-installed belt can be hooked, 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 are evenly fixed on the surface of the buffer layer away from the waterproof board, and a plurality of hooks are evenly fixed on the surface of 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 on one side 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 shape of a long strip, the width of the adhesive is greater than or equal to 50 cm, and the adhesive is arranged in multiple strips in a equidistant manner along the length direction of the waterproof board, and the distance between each two adjacent strips of adhesive is 50-100 cm. The waterproof board and the buffer layer can be reliably fixed together, and the two have a high degree of fit.

[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 in sequence and equidistantly along the length direction of the waterproof board. The buffer layer fixed with the waterproof board can be reliably fixed to the surface of the primary lining of the tunnel through 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 drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0018] Figure 1 It is a cross-sectional view of a prefabricated high temperature resistant 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 board, 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 technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only 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 creative work are within the scope of protection of the present invention.

[0023] 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 underground engineering waterproofing layers with an ambient temperature of 50°C or above.

[0024] The present application solves the problem that ordinary waterproof board 1 and hot-melt liner are difficult to weld in high temperature environment and the adhesive performance of pressure-sensitive adhesive of self-adhesive waterproof board 1 is reduced after being heated, thereby ensuring the construction quality of waterproof layer in high temperature environment;

[0025] The waterproof device in the present application has a simple installation process, high laying efficiency, and can reduce construction costs; the pre-installed belt 5 is laid on the surface of the primary lining of the tunnel through air nails, and the buffer layer 3 is prefabricated into a coil when the waterproof board 1 is processed. When installing, the waterproof board 1 with the buffer layer 3 is directly spread out. After the waterproof board 1 with the buffer layer 3 is laid in place, the waterproof board 1 is pressed, and the hook ring 4 on the buffer layer 3 and the hook body 6 on the pre-installed belt 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 belt 5, and on the other hand, this fixing method is simple and has high laying efficiency;

[0026] The waterproof device in the present application has high construction quality, enhances 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 It 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, including: 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 board surface of the waterproof board 1 is coated with adhesive 2. The adhesive 2 applied on the waterproof board 1 is in the shape 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 a plurality of strips in sequence and at equal intervals along the length direction of the waterproof board 1. The distance between each two adjacent strips 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 board 1 by means of adhesive 2, and a hook and loop 4 is provided on the side of the buffer layer 3 away from the waterproof board 1; the waterproof board 1 is fixed to the buffer layer 3 by adhesive 2 before being processed and shipped out of the factory, and the waterproof board 1 and the buffer layer 3 are prefabricated into a roll material, which is convenient for later transportation and laying; specifically, the waterproof board 1 is plasticized and extruded by a screw extruder, the adhesive 2 is coated on the board surface of the waterproof board 1, the buffer layer 3 and the waterproof board 1 are hot-applied and rolled together, and the waterproof board 1 roll material with the buffer layer 3 is obtained;

[0031] One side of the pre-installed belt 5 can be tightly fixed to the surface of the primary lining of the tunnel. Specifically, after one side of the pre-installed belt 5 is tightly attached to the surface of the primary lining of the tunnel, the pre-installed belt 5 is nailed to the primary lining of the tunnel using air nails. The other side of the pre-installed belt 5 is provided with a hook body 6 that can be hooked with the hook ring 4. The hook body 6 in the present application is in the shape of a curved hook or a mushroom, and its length is 0.5-1.5mm; 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 greater 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, so as to realize 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 mildew or insect infestation, has a long service life and good economic benefits.

[0032] The waterproof board 1 in the present application is made of heat-resistant waterproof material. 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 at an ambient temperature of 50°C or above. The waterproof board 1 made of the above material has high strength, good elasticity, excellent elastic-plasticity, and resistance to temperature differences, 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 the present 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 the present 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 surface of the buffer layer 3 away from the high-temperature sintering surface is integrally formed with a hook ring 4. Specifically, regarding the hook ring 4 of the buffer layer 3, the surface of the buffer layer 3 away from the high-temperature sintering surface is piled up by a pile raising machine to form a plurality of hook rings 4. The plurality of hook rings 4 form a loop surface. The thickness of the loop 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 used:

[0039] First, the pre-installed belt 5 is fixed on the surface of the primary lining of the tunnel, and then the waterproof board 1 with the buffer layer 3 is laid. After the buffer layer 3 is laid in place, the buffer layer 3 is evenly pressed to make the hook ring 4 and the hook body 6 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 enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be 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 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 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 ring (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, and the other side of the pre-installed tape (5) is provided with a hook body (6) that can be hooked to the hook ring (4); the pre-installed tape (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 hook rings (4) are evenly fixed on the surface of one side of the buffer layer (3) away from the waterproof board (1); and a plurality of hook bodies (6) are evenly fixed on the belt 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. A prefabricated high temperature resistant waterproof device according to claim 5, characterized in that: The hook ring (4) is integrally formed on a 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 adhesive (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 a plurality of lines of the viscose (2) are arranged in sequence and at equal intervals along the length direction of the waterproof board (1), and the distance between each two adjacent lines 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 the pre-installed tapes (5) are provided, and the plurality of the pre-installed tapes (5) are arranged in sequence and at equal intervals along the length direction of the waterproof board (1).

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