Waterproof structure for deformation joint of tunnel concrete top plate

Abstract

The utility model relates to the technical field of tunnel concrete top plate deformation joint waterproofing, and discloses a tunnel concrete top plate deformation joint waterproofing structure which comprises a concrete top plate, a deformation joint is arranged in the middle of the top of the concrete top plate, and supporting net racks are arranged on the upper portion and the lower portion in the deformation joint. A deformation joint is arranged in the concrete top plate, a pre-embedded water stop belt is arranged on the lower portion of the interior of the deformation joint, waterproof paint is arranged on the pre-embedded water stop belt, a waterproof roll is arranged on the waterproof paint, caulking grooves are formed in the middles of the two sides of the concrete top plate, and drainage pipes are arranged in the caulking grooves. Water can be prevented from permeating into the concrete roof, accumulated water and underground water are drained through the drainage pipe, and dryness and safety of the tunnel roof are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of waterproofing of deformation joints of tunnel concrete top plates, in particular to a waterproofing structure of deformation joints of tunnel concrete top plates. Background Art

[0002] A tunnel is an engineering structure buried in the ground and is a form of human utilization of underground space.

[0003] The lack of waterproof structure in tunnel concrete expansion joints can easily cause water to penetrate into the concrete top plate of the tunnel, affecting the safety and stability of the tunnel structure and reducing the service life of the tunnel. Utility Model Content

[0004] The utility model aims to provide a waterproof structure for deformation joints of tunnel concrete top plates, which can solve the problem of lack of waterproof structure in tunnel concrete deformation joints, prevent water from penetrating into the interior of tunnel concrete top plates, and improve the safety and stability of tunnel structures, as well as the service life of tunnels.

[0005] To achieve the above-mentioned purpose, a tunnel concrete roof expansion joint waterproof structure is provided, including a concrete roof, a expansion joint is arranged in the middle of the top of the concrete roof, supporting grids are arranged above and below the expansion joint, a pre-buried waterstop is arranged below the expansion joint, a waterproof coating is arranged above the pre-buried waterstop, a waterproof membrane is arranged above the waterproof coating, embedded grooves are arranged in the middle of both sides of the concrete roof, and drainage pipes are arranged inside the embedded grooves.

[0006] According to the waterproof structure of the deformation joint of the tunnel concrete top plate, waterproofing agents such as polyacrylate and silicate are added to the concrete top plate, and the middle part of the top of the concrete top plate is connected with the deformation joint by a recessed connection.

[0007] According to the waterproof structure of a tunnel concrete roof deformation joint, two supporting grids are provided, both of which are made of stainless steel, aluminum alloy or the like, and both of which are cast and fixedly connected to the concrete roof surface above and below the deformation joint.

[0008] According to the waterproof structure of a tunnel concrete top plate deformation joint, the embedded waterstop is usually made of rubber, plastic or a composite material of rubber and plastic, and the embedded waterstop is bonded and fixedly connected to the concrete top plate through the supporting grid below.

[0009] According to the waterproof structure of a tunnel concrete top plate deformation joint, the waterproof coating is composed of materials such as polyurethane and epoxy resin, and the waterproof coating is coated and fixedly connected to the top of the embedded waterstop.

[0010] According to the waterproof structure of the tunnel concrete top plate deformation joint, the waterproof coiled material is made of materials such as polyethylene and polyvinyl chloride, and the waterproof coiled material is coated and fixedly connected with the waterproof coating above.

[0011] According to the waterproof structure of deformation joint of tunnel concrete top plate, two embedding grooves are provided, and both embedding grooves are recessedly connected with the middle parts of both sides of the concrete top plate.

[0012] According to the described waterproof structure of deformation joint of tunnel concrete top plate, two drainage pipes are provided, both of which are made of metal materials such as cast iron pipes and stainless steel pipes, and both of which are connected by pouring and bonding inside the embedded groove, and the top ends of the two drainage pipes are in contact and connected with both sides above the concrete top plate.

[0013] The above scheme has the beneficial effect: the embedded waterstop, waterproof coating and waterproof membrane can prevent moisture from penetrating into the concrete top plate, and then the accumulated water and groundwater are discharged through the drainage pipe to ensure the dryness and safety of the tunnel top plate.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a tunnel concrete top plate deformation joint waterproof structure of the utility model;

[0016] Figure 2 The utility model is a structural cross-sectional view of a tunnel concrete top plate deformation joint waterproof structure.

[0017] Legend:

[0018] 1. Concrete top plate; 2. Expansion joint; 3. Support grid; 4. Drain pipe; 5. Embedded waterstop; 6. Waterproof coating; 7. Waterproof membrane; 8. Grooves. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Reference Figure 1-2The utility model embodiment is a tunnel concrete roof expansion joint waterproof structure, which includes a concrete roof 1, a expansion joint 2 is arranged in the middle of the top of the concrete roof 1, a supporting grid 3 is arranged above and below the expansion joint 2, a pre-buried waterstop 5 is arranged below the expansion joint 2, a waterproof coating 6 is arranged above the pre-buried waterstop 5, a waterproof membrane 7 is arranged above the waterproof coating 6, and embedded grooves 8 are arranged in the middle of both sides of the concrete roof 1, and drainage pipes 4 are arranged inside the embedded grooves 8.

[0021] The concrete top plate 1 is mixed with waterproofing agents such as polyacrylates and silicates. The middle part of the top of the concrete top plate 1 is connected with the deformation joint 2 by an inlaid recess. The waterproof performance of the tunnel concrete top plate 1 is improved by adding waterproofing agents such as polyacrylates and silicates. Two support grids 3 are provided. Both support grids 3 are made of stainless steel, aluminum alloy and other materials. Both support grids 3 are cast and fixedly connected to the surface of the concrete top plate 1 above and below the deformation joint 2. The support grids 3 are provided to improve the support stability of the deformation joint 2 space. The embedded waterstop 5 is usually made of rubber, plastic or a composite material of rubber and plastic. The embedded waterstop 5 is bonded and fixedly connected to the concrete top plate 1 through the support grid 3 below. The embedded waterstop 5 can be used for the deformation joint. 2 provides a long-term waterproof barrier to prevent moisture from penetrating into the interior of the structure. The waterproof coating 6 is composed of materials such as polyurethane and epoxy resin. The waterproof coating 6 is coated and fixedly connected to the top of the embedded waterstop 5. The waterproof membrane 7 is made of materials such as polyethylene and polyvinyl chloride. The waterproof membrane 7 is coated and fixedly connected to the top of the waterproof coating 6. There are two embedded grooves 8. The two embedded grooves 8 are recessed and connected to the middle of both sides of the concrete top plate 1. There are two drain pipes 4. Both drain pipes 4 are made of metal materials such as cast iron pipes and stainless steel pipes. Both drain pipes 4 are cast and bonded to the inside of the embedded grooves 8. The top ends of the two drain pipes 4 are in contact with both sides of the top of the concrete top plate 1. The set drain pipes 4 can provide a circulation state for the moisture accumulated in the upper supporting grid 3 to ensure the dryness and safety of the tunnel top plate.

[0022] Working principle: A waterproof layer consisting of a pre-buried waterstop 5, a waterproof coating 6 and a waterproof membrane 7 is arranged at the deformation joint 2 at the top of the concrete top plate 1 to prevent water from penetrating into the concrete structure through the gap. When the water cannot penetrate into the top of the concrete top plate 1, it can be discharged to the top surface of the concrete top plate 1 through the drain pipe 4.

[0023] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tunnel concrete top plate deformation joint waterproof structure, comprising a concrete top plate (1), characterized in that: A deformation joint (2) is provided in the middle of the top of the concrete top plate (1), support grids (3) are provided above and below the deformation joint (2), a pre-buried waterstop (5) is provided below the deformation joint (2), a waterproof coating (6) is provided above the pre-buried waterstop (5), a waterproof roll (7) is provided above the waterproof coating (6), and embedded grooves (8) are provided in the middle of both sides of the concrete top plate (1), and drainage pipes (4) are provided inside the embedded grooves (8).

2. A tunnel concrete top plate expansion joint waterproof structure according to claim 1, characterized in that: The middle part of the top of the concrete top plate (1) is connected to the deformation joint (2) by means of a recessed engagement.

3. The tunnel concrete top plate deformation joint waterproof structure according to claim 1, characterized in that: Two supporting grid frames (3) are provided, and both supporting grid frames (3) are cast and fixedly connected to the surface of the concrete top plate (1) above and below the deformation joint (2).

4. The tunnel concrete top plate deformation joint waterproof structure according to claim 1, characterized in that: The embedded water stop strip (5) is bonded and fixedly connected to the concrete top plate (1) via the supporting grid (3) below.

5. The tunnel concrete top plate deformation joint waterproof structure according to claim 1, characterized in that: The waterproof coating (6) is coated and fixedly connected to the upper part of the pre-buried water stop strip (5).

6. The tunnel concrete top plate deformation joint waterproof structure according to claim 1, characterized in that: The waterproof coiled material (7) is coated and fixedly connected to the top of the waterproof coating (6).

7. The tunnel concrete top plate deformation joint waterproof structure according to claim 1, characterized in that: Two embedding grooves (8) are provided, and both embedding grooves (8) are recessedly connected to the middle parts of both sides of the concrete top plate (1).

8. The tunnel concrete top plate deformation joint waterproof structure according to claim 7, characterized in that: Two drainage pipes (4) are provided, and both drainage pipes (4) are connected to the inside of the embedded groove (8) by pouring and bonding, and the top ends of the two drainage pipes (4) are in contact and connected to the two sides above the concrete top plate (1).

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