Deformation joint waterproof structure for tunnel construction design

Abstract

The utility model relates to a deformation joint waterproof structure for tunnel construction design, and belongs to the technical field of tunnel construction waterproofing. The deformation joint is arranged between every two adjacent arch walls, the water stopping piece is connected between every two adjacent arch walls and located in the deformation joint, the deformation joint is filled with the caulking piece, and the blocking pieces are arranged on the inner side walls of the arch walls and used for blocking the deformation joint. The waterproof structure has the effect of remarkably improving the waterproof performance of the tunnel.

Description

Technical Field

[0001] The present application relates to the technical field of tunnel construction waterproofing, and in particular to a deformation joint waterproofing structure designed for tunnel construction. Background Art

[0002] Expansion joint waterproofing in tunnel construction design is a key technology for ensuring safe tunnel operation. With the acceleration of urbanization and the increasing development and utilization of underground space, tunnel construction has become a crucial component of infrastructure development. To ensure tunnel safety and durability, the design of expansion joint waterproofing is particularly important. Existing expansion joint waterproofing primarily utilizes water-stopping and sealing materials. The application of these materials and technologies has significantly improved tunnel waterproofing, reduced leakage incidents, and ensured the tunnel's normal operation.

[0003] Currently, common expansion joint waterproofing measures include the use of various materials and techniques, including rubber waterstops, polyurethane sealants, and waterproof coatings. Rubber waterstops are widely used due to their excellent elasticity and durability, and are typically installed within expansion joints to prevent water penetration. Polyurethane sealants, due to their excellent adhesion and weather resistance, are often used to fill gaps within expansion joints, further enhancing waterproofing effectiveness. Furthermore, waterproof coatings are widely used on tunnel walls to enhance overall waterproofing performance.

[0004] The present application provides another technical solution that can significantly improve the waterproof performance of a tunnel, aiming to provide technical personnel in this field with a variety of options for solving the problem. Utility Model Content

[0005] In order to significantly improve the waterproof performance of a tunnel, the present application provides a deformation joint waterproof structure for tunnel construction design.

[0006] The present application provides a tunnel construction design expansion joint waterproof structure using the following technical solutions:

[0007] A deformation joint waterproof structure for tunnel construction design includes a deformation joint arranged between two adjacent arch walls, a water stop connected between the two adjacent arch walls and located in the deformation joint, a caulking member filled in the deformation joint, and a sealing member arranged on the inner side wall of the arch wall for sealing the deformation joint.

[0008] By adopting the above technical solution, the waterstop is horizontally installed between two adjacent arch walls, and then the caulking piece is filled into the deformation joint so that the caulking piece fills the gap between the waterstop and the deformation joint, and finally the deformation joint is sealed by the sealing piece. Through the effective cooperation of the waterstop and the caulking piece, the waterproof performance of the tunnel is significantly improved; and the sealing piece further enhances the waterproof effect, ensures the sealing of the deformation joint, effectively reduces water penetration, and improves the overall durability and safety of the tunnel.

[0009] Preferably, the end faces of the two arch walls that are close to each other are provided with embedded grooves, and the water stop member is a centrally embedded steel-edge rubber water stop strip, which includes a rubber segment and two steel edge segments respectively fixed on both sides of the rubber segment, and the steel edge segments are fixedly embedded in the embedded grooves.

[0010] By adopting the above technical solution, the steel edge section of the embedded steel-edge rubber waterstop is fixedly embedded in the embedding groove of the arch wall, which enhances the connection strength and stability between the waterstop and the arch wall, improves the overall tensile performance of the waterproof structure, and enables the waterstop to withstand greater tension and torsion, thereby effectively reducing water leakage problems at tunnel deformation joints.

[0011] Preferably, both sides of the rubber segment are integrally formed with non-uniform thickness structures, the non-uniform thickness structure is fixedly connected to the steel plate segment on the side away from the rubber segment, the cross-sectional area of the non-uniform thickness structure gradually increases toward the deformation joint, and the non-uniform thickness structure is fixedly embedded in the embedding groove.

[0012] By adopting the above technical solution, the setting of the non-uniform thickness structure enhances the tensile strength of the embedded steel-edge rubber waterstop, so that the embedded steel-edge rubber waterstop can withstand greater tension and torsion, thereby improving the stability and reliability of the waterstop; the cross-sectional area of the non-uniform thickness structure gradually increases towards the deformation joint and is fixedly embedded in the embedding groove, ensuring the effective connection between the arch wall and the embedded steel-edge rubber waterstop, and further improving the waterproof performance.

[0013] Preferably, the blocking member comprises a non-woven fabric layer, an EVA waterproof board and an external waterstop which are sequentially bonded to each other, and the side of the non-woven fabric layer away from the EVA waterproof board is bonded to the inner wall of the arch wall.

[0014] By adopting the above technical solution, the side of the non-woven fabric layer away from the EVA waterproof board is adhered to the inner wall of the arch wall, which effectively blocks the deformation joint, improves the sealing performance of the waterproof structure, minimizes moisture penetration, and protects the interior of the tunnel from moisture erosion.

[0015] Preferably, the inner side wall of the arch wall is provided with a mounting piece, and the non-woven fabric layer, EVA waterproof board and external waterstop are installed on the inner side wall of the arch wall through the mounting piece.

[0016] By adopting the above technical solution, the non-woven fabric layer, EVA waterproof board and external waterstop are firmly installed on the inner wall of the arch wall through the mounting parts, ensuring the stability of the waterproof structure; the design of the mounting parts enables the non-woven fabric layer, EVA waterproof board and external waterstop to fit tightly against the inner wall of the arch wall, forming a continuous and complete waterproof layer, effectively preventing moisture penetration and protecting the expansion joint from moisture erosion.

[0017] Preferably, the mounting part includes a screw rod vertically embedded in the inner wall of the arch wall and located on one end of the arch wall close to the deformation joint, a gasket slidingly connected to the circumference of the screw rod, and a nut threadedly connected to the screw rod, and the gasket is limited between the bottom surface of the external water stop and the top of the nut.

[0018] By adopting the above technical solution, the non-woven fabric layer, EVA waterproof board and external waterstop are easily installed, the installation efficiency is improved, and it is ensured that the sealing parts are firmly and reliably installed on the inner wall of the arch wall, effectively enhancing the overall stability of the waterproof structure.

[0019] Preferably, the circumferential side of the screw is provided with a first vertical groove, an arcuate groove and a second vertical groove which are connected in sequence, and the inner ring side of the gasket is fixedly connected with a slider which is slidably connected with the first vertical groove, the arcuate groove and the second vertical groove in sequence.

[0020] By adopting the above technical solution, the first vertical groove, arc groove and second vertical groove opened on the circumference of the screw and connected in sequence cooperate with the slider fixed on the inner ring side of the gasket, so that the gasket can slide smoothly along the screw, which is convenient for adjusting the position of the non-woven fabric layer, EVA waterproof board and external waterstop, and finally fixed by nuts to achieve stable installation of the sealing part, ensuring the overall sealing of the waterproof structure.

[0021] Preferably, a plurality of the mounting members are provided, and the plurality of mounting members are distributed at equal intervals along the inner side wall of the arch wall.

[0022] By adopting this technical solution, multiple mounting components are evenly spaced along the inner sidewall of the arch wall, ensuring uniform stress distribution across the entire arch wall for the non-woven fabric layer, EVA waterproofing sheet, and externally attached waterstop, thereby improving the overall stability and reliability of the waterproof structure. This layout not only reduces localized stress concentration but also enhances the uniformity and consistency of the entire waterproofing system, further improving the waterproofing effectiveness. Furthermore, the evenly spaced mounting components facilitate installation and ensure construction quality.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. Install the waterstop horizontally between two adjacent arch walls. Then fill the expansion joint with caulking components so that the caulking components fill the gap between the waterstop and the expansion joint. Finally, seal the expansion joint with the plugging components. The effective cooperation between the waterstop and caulking components significantly improves the waterproof performance of the tunnel. The plugging components further enhance the waterproof effect, ensure the sealing of the expansion joint, effectively reduce water infiltration, and improve the overall durability and safety of the tunnel.

[0025] 2. The non-woven fabric layer, EVA waterproof sheet, and external waterstop are securely mounted on the inner sidewall of the arch wall via mounting hardware, ensuring the stability of the waterproof structure. The design of the mounting hardware allows the non-woven fabric layer, EVA waterproof sheet, and external waterstop to fit tightly against the inner sidewall of the arch wall, forming a continuous, complete waterproof layer that effectively prevents water penetration and protects the expansion joint from moisture erosion.

[0026] 3. The first vertical groove, arc groove and second vertical groove opened in sequence on the circumference of the screw cooperate with the slider fixed on the inner ring side of the gasket, so that the gasket can slide smoothly along the screw, which is convenient for adjusting the position of the non-woven fabric layer, EVA waterproof board and external waterstop. Finally, it is fixed by nuts to achieve stable installation of the sealing part and ensure the overall sealing of the waterproof structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is an exploded view of the two arch walls of this application.

[0028] Figure 2 It is an overall cross-sectional view of this application.

[0029] Figure 3 yes Figure 2 A partial enlarged view of part A.

[0030] Figure 4 It is a structural diagram of the mounting part of this application.

[0031] Explanation of the accompanying reference numerals: 1. Arch wall; 2. Expansion joint; 3. Caulking piece; 4. Rubber segment; 41. Steel edge segment; 42. Non-uniform thickness structure; 5. Non-woven fabric layer; 51. EVA waterproof board; 52. External waterstop; 6. Screw; 61. Gasket; 611. Slider; 62. Nut; 63. First vertical groove; 64. Arc groove; 65. Second vertical groove. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] The embodiment of the present application discloses a deformation joint waterproof structure for tunnel construction design. Figure 1 and Figure 2The expansion joint waterproofing structure designed for tunnel construction includes an expansion joint 2 provided between two adjacent arch walls 1, a waterstop connected between the two adjacent arch walls 1 and located within the expansion joint 2, a caulking member 3 filled within the expansion joint 2, and a plugging member provided on the inner sidewall of the arch wall 1 to seal the expansion joint 2. The waterstop is installed horizontally between the two adjacent arch walls 1. The caulking member 3 is then filled into the expansion joint 2, so that the caulking member 3 fills the gap between the waterstop and the expansion joint 2. Finally, the expansion joint 2 is sealed with the plugging member to make it waterproof.

[0034] Reference Figure 3 , the end faces of the two arch walls 1 that are close to each other are provided with embedding grooves. In this embodiment, the waterstop is a centrally embedded steel-edge rubber waterstop. The centrally embedded steel-edge rubber waterstop includes a rubber segment 4 and two steel edge segments 41 respectively fixed on both sides of the rubber segment 4; both sides of the rubber segment 4 are integrally formed with a non-uniform thickness structure 42, and the non-uniform thickness structure 42 is fixedly connected to the steel plate segment on the side away from the rubber segment 4. The cross-sectional area of the non-uniform thickness structure 42 gradually increases in the direction close to the deformation joint 2, and the steel edge segment 41 and the non-uniform thickness structure 42 are fixedly embedded in the embedding groove to realize the connection between the arch wall 1 and the centrally embedded steel-edge rubber waterstop. The provision of the steel edge segment 41 and the non-uniform thickness structure 42 enhances the tensile strength of the centrally embedded steel-edge rubber waterstop, so that the centrally embedded steel-edge rubber waterstop can withstand greater tension and torsion, thereby realizing a stable connection between the centrally embedded steel-edge rubber waterstop and the arch wall 1.

[0035] In this embodiment, the caulking member 3 is a two-component polysulfide sealant, which is filled in the expansion joint 2 to fill the gap between the embedded steel-edge rubber waterstop and the expansion joint 2; the two-component polysulfide sealant has excellent chemical corrosion resistance, weather resistance, adhesion and elasticity, and is widely used in sealing and waterproofing in the construction field.

[0036] Reference Figure 3 and Figure 4 The sealing member includes a non-woven fabric layer 5, an EVA waterproof sheet 51, and an external waterstop 52, which are sequentially bonded to each other. The side of the non-woven fabric layer 5 away from the EVA waterproof sheet 51 is bonded to the inner wall of the arch wall 1, so that the non-woven fabric layer 5, the EVA waterproof sheet 51, and the external waterstop 52 seal the deformation joint 2 between two adjacent arch walls 1. The inner wall of the arch wall 1 is provided with a mounting member, and the non-woven fabric layer 5, the EVA waterproof sheet 51, and the external waterstop 52 are mounted on the inner wall of the arch wall 1 via the mounting member. There are multiple mounting members, and the multiple mounting members are evenly spaced along the inner wall of the arch wall 1.

[0037] The external waterstop 52 is a waterstop product made of a polymer material, which is mainly used for waterproof sealing of the expansion joint 2; the EVA waterproof board 51 is a polymer material with ethylene vinyl acetate copolymer (EVA) as the main raw material. Due to the excellent flexibility and plasticity of the EVA waterproof board 51, it can be tightly combined with the inner wall of the arch wall 1 to form a continuous and complete waterproof layer, effectively preventing moisture penetration and protecting the expansion joint 2 from moisture erosion; the setting of the non-woven fabric can, on the one hand, serve as a protective layer for the EVA waterproof board 51, minimizing damage to the EVA waterproof board 51 during construction and extending the service life of the EVA waterproof board 51; on the other hand, the non-woven fabric can increase the overall strength of the waterproof layer, provide additional stability and wear resistance, and reduce the risk of damage caused by external forces; thus, the non-woven fabric layer 5 works together with the EVA waterproof board 51 and the external waterstop 52 to form an efficient and reliable waterproof system.

[0038] The mounting part includes a screw rod 6 which is vertically pre-buried on the inner wall of the arch wall 1 and located at one end of the arch wall 1 near the deformation joint 2, a gasket 61 which is slidably connected to the peripheral side of the screw rod 6, and a nut 62 which is threadedly connected to the screw rod 6; the bottom end of the screw rod 6 extends into the arch wall 1, and the non-woven fabric layer 5, the EVA waterproof board 51 and the external water stop 52 are all provided with perforations; the screw 6 is connected to the non-woven fabric layer 5, the EVA waterproof board 51 and the external water stop 52 through the perforations, and the peripheral side of the screw rod 6 is provided with a first vertical groove 63, an arc groove 64 and a second vertical groove 65 which are connected in sequence, and an arc groove 65 is provided. The arc-shaped groove 64 is arranged horizontally, the first vertical groove 63 and the second vertical groove 65 are parallel to each other, and the second vertical groove 65 is located above the first vertical groove 63; the bottom end of the first vertical groove 63 is opened, the top end of the first vertical groove 63 is connected to the bottom side end of the arc-shaped groove 64, and the bottom end of the second vertical groove 65 is connected to the top side end of the arc-shaped groove 64; the inner ring side of the gasket 61 is fixedly connected with a slider 611, and the slider 611 is slidingly connected to the first vertical groove 63, the arc-shaped groove 64 and the second vertical groove 65 in sequence; and the gasket 61 is limited between the bottom surface of the external water stop 52 and the top end of the nut 62.

[0039] The screw 6 passes through the perforations of the non-woven fabric layer 5, the EVA waterproof board 51 and the external waterstop 52 in turn, and the slider 611 on the gasket 61 slides along the trajectories of the first vertical groove 63 and the arc groove 64 in turn, thereby preliminarily positioning the non-woven fabric layer 5, the EVA waterproof board 51 and the external waterstop 52 on the screw 6. When the nut 62 is threadedly connected to the screw 6, the nut 62 pushes the slider 611 on the gasket 61 to slide along the trajectory of the second vertical groove 65 until the top surface of the gasket 61 is pressed against the bottom surface of the external waterstop 52, thereby installing the non-woven fabric layer 5, the EVA waterproof board 51 and the external waterstop 52 on the inner wall of the arch wall 1.

[0040] The implementation principle of the expansion joint waterproof structure designed for tunnel construction in the embodiment of the present application is: the water stop is horizontally installed between two adjacent arch walls 1, and then the caulking member 3 is filled into the expansion joint 2 so that the caulking member 3 fills the gap between the water stop and the expansion joint 2, and finally the expansion joint 2 is sealed by the sealing member. Through the effective cooperation of the water stop and the caulking member 3, the waterproof performance of the tunnel is significantly improved; and the sealing member further enhances the waterproof effect, ensures the sealing of the expansion joint 2, effectively reduces water penetration, and improves the overall durability and safety of the tunnel.

[0041] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A deformation joint waterproof structure for tunnel construction design, characterized by: It comprises a deformation joint (2) arranged between two adjacent arch walls (1), a water stop connected between the two adjacent arch walls (1) and located in the deformation joint (2), a caulking member (3) filled in the deformation joint (2), and a blocking member arranged on the inner side wall of the arch wall (1) for blocking the deformation joint (2); The blocking member comprises a non-woven fabric layer (5), an EVA waterproof board (51) and an external waterstop (52) which are sequentially bonded to each other, and the side of the non-woven fabric layer (5) away from the EVA waterproof board (51) is bonded to the inner side wall of the arch wall (1); The inner side wall of the arch wall (1) is provided with a mounting piece, and the non-woven fabric layer (5), the EVA waterproof board (51) and the external water stop (52) are mounted on the inner side wall of the arch wall (1) via the mounting piece; The mounting member comprises a screw rod (6) vertically pre-embedded on the inner side wall of the arch wall (1) and located on one end of the arch wall (1) close to the deformation joint (2), a gasket (61) slidably connected to the circumference of the screw rod (6), and a nut (62) threadedly connected to the screw rod (6), wherein the gasket (61) is limited between the bottom surface of the external water stop (52) and the top end of the nut (62).

2. The expansion joint waterproof structure for tunnel construction design according to claim 1, characterized in that: The end faces of the two arch walls (1) close to each other are both provided with an embedding groove, and the water stop member is a centrally embedded steel-edge rubber water stop strip, which comprises a rubber segment (4) and two steel edge segments (41) respectively fixed on both sides of the rubber segment (4), and the steel edge segments (41) are fixedly embedded in the embedding groove.

3. The expansion joint waterproof structure for tunnel construction design according to claim 2, characterized in that: Both sides of the rubber segment (4) are integrally formed with non-uniform thickness structures (42), and the non-uniform thickness structure (42) is fixedly connected to the steel plate segment on the side away from the rubber segment (4). The cross-sectional area of the non-uniform thickness structure (42) gradually increases in a direction approaching the deformation joint (2), and the non-uniform thickness structure (42) is fixedly embedded in the embedding groove.

4. The expansion joint waterproof structure for tunnel construction design according to claim 1, characterized in that: The circumferential side of the screw rod (6) is provided with a first vertical groove (63), an arcuate groove (64) and a second vertical groove (65) which are connected in sequence. The inner ring side of the gasket (61) is fixedly connected with a slider (611). The slider (611) is slidably connected with the first vertical groove (63), the arcuate groove (64) and the second vertical groove (65) in sequence.

5. The expansion joint waterproof structure for tunnel construction design according to claim 1, characterized in that: A plurality of the mounting members are provided, and the plurality of the mounting members are distributed at equal intervals along the inner side wall of the arch wall (1).

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