Joint structure of fabricated rectangular tunnel lining
By using fixed bolts, screws and waterproof rubber in the lining joints of prefabricated rectangular tunnels, the problems of weak joint structure and water seepage were solved, structural stability and waterproofing effects were achieved, and the service life and construction efficiency of the tunnel were improved.
Patent Information
- Application Number
- CN202423097412.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-12-16
AI Technical Summary
The existing prefabricated rectangular tunnel lining joints have weak structural strength, complex operation and are prone to water seepage, resulting in easy damage to the joints and structural water seepage.
The design adopts prefabricated assembly panels and fixing mechanisms combined with waterproof mechanisms, including fixing bolts, screws, waterproof rubber, etc. The cross-assembly and waterproof design enhance the connection strength and prevent water seepage.
It improves the structural stability and seismic resistance of the tunnel lining, prevents groundwater erosion, extends the tunnel life, reduces maintenance costs and simplifies the installation process.
Smart Images

Figure CN223410849U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tunnel engineering joints, in particular to a joint structure of an assembled rectangular tunnel lining. Background Art
[0002] The joint structure of the prefabricated rectangular tunnel lining mainly includes tunnel sections and rectangular tunnel segments. The tunnel installation technology mainly includes two types: integral cast-in-place and prefabricated assembly. The tunnel section is spliced together by several rectangular tunnel segments. Each segment is prefabricated in the factory or on site and has standardized size and shape.
[0003] Prefabricated rectangular tunnels generally use steel box or straight seam joints for the joints of prefabricated frame tunnels. Straight seam joints will reduce the strength of the joints, have certain limitations and are complicated to operate. The structural strength of the joints is weak, and the joints are prone to damage and structural water seepage.
[0004] To this end, we propose a joint structure for prefabricated rectangular tunnel lining. Utility Model Content
[0005] The purpose of the utility model is to provide a joint structure of an assembled rectangular tunnel lining to solve the problems raised in the above background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a joint structure of an assembled rectangular tunnel lining, comprising a prefabricated assembly panel one; and also comprising: a prefabricated assembly panel two, which is located on one side of the prefabricated assembly panel one, with a prefabricated assembly panel three connected below the prefabricated assembly panel one, and a prefabricated assembly panel four connected on one side of the prefabricated assembly panel three; a first fixing mechanism, which is located below the prefabricated assembly panel one, and is used to fix the connection between the prefabricated assembly panel one; a second fixing mechanism, which is located on one side of the prefabricated assembly panel one, and is used to fix the connection between the prefabricated assembly panel one and the prefabricated assembly panel three; and a waterproof mechanism, which is located on one side of the prefabricated assembly panel one, and is used to prevent water seepage in the structure.
[0007] Among them, the first fixing mechanism includes an installation hole, which is opened on one side of the prefabricated assembly panel. The installation hole is connected to a fixing bolt 1, and a fixing block is connected above the fixing bolt 1. A screw 1 is provided on one side of the prefabricated assembly panel 2, and a nut is provided on one side of the prefabricated assembly panel 1.
[0008] Among them, the second fixing mechanism includes a fixing plate 1, which is connected to a fixing bracket 1 and a fixing bracket 2. The outer side of the prefabricated assembly plate 3 is fixedly connected to the fixing plate 2, and the top of the fixing plate 2 is fixedly connected to the screw 2.
[0009] Among them, the waterproof mechanism includes waterproof rubber 1, which is arranged on one side of fixed plate 1, waterproof rubber 1 is connected to waterproof rubber 4, waterproof rubber 4 is connected to one side of fixed plate 2, prefabricated assembly plate 1 is connected to waterproof rubber 2, waterproof rubber 2 is connected to waterproof rubber 3, and waterproof rubber 3 is connected to one side of prefabricated assembly plate 2.
[0010] Among them, the prefabricated assembly panel is set to be inverted.
[0011] Wherein, the fixing block is configured to be conical.
[0012] The first fixing bracket and the second fixing bracket are arranged in a triangle shape.
[0013] The utility model has at least the following beneficial effects:
[0014] Effective waterproofing design can prevent groundwater infiltration from eroding and damaging the tunnel's internal structure, extending the tunnel's service life and reducing maintenance costs. The joint structure is relatively simple and easy to install, which can shorten the construction period and improve construction efficiency. It can also enhance the overall structural stability of the tunnel lining and improve the tunnel's earthquake resistance and deformation resistance. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the structure of the utility model;
[0016] Figure 2 For this utility model Figure 1 Schematic diagram of the enlarged structure of area A in the middle;
[0017] Figure 3 This is a schematic diagram of the split structure of the utility model;
[0018] Figure 4 For this utility model Figure 3 Schematic diagram of the enlarged structure of the middle B area;
[0019] Figure 5 This is a front structural diagram of the utility model;
[0020] In the figure: 1. Prefabricated assembly panel one; 2. Prefabricated assembly panel two; 3. Prefabricated assembly panel three; 4. Prefabricated assembly panel four; 5. First fixing mechanism; 51. Mounting hole; 52. Fixing bolt one; 53. Fixing block; 54. Screw one; 55. Nut; 6. Second fixing mechanism; 61. Fixing plate one; 62. Fixing bracket one; 63. Fixing bracket two; 64. Fixing plate two; 65. Screw two; 66. Screw three; 7. Waterproof mechanism; 71. Waterproof rubber one; 72. Waterproof rubber two; 73. Waterproof rubber three; 74. Waterproof rubber four. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. 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.
[0022] Example 1
[0023] See also Figures 1 to 5 The utility model provides a technical solution: a joint structure of an assembled rectangular tunnel lining, including a prefabricated assembly panel 1; also including: a prefabricated assembly panel 2 2, the prefabricated assembly panel 2 2 is located on one side of the prefabricated assembly panel 1, the prefabricated assembly panel 3 3 is connected to the bottom of the prefabricated assembly panel 1, and the prefabricated assembly panel 4 4 is connected to one side of the prefabricated assembly panel 3 3; a first fixing mechanism 5, the first fixing mechanism 5 is located under the prefabricated assembly panel 1, and the first fixing mechanism 5 is used to fix the connection between the prefabricated assembly panel 1 1; a second fixing mechanism 6, the second fixing mechanism 6 is located on one side of the prefabricated assembly panel 1, and the second fixing mechanism 6 is used to fix the connection between the prefabricated assembly panel 1 and the prefabricated assembly panel 3 3; a waterproof mechanism 7, the waterproof mechanism 7 is located on one side of the prefabricated assembly panel 1, and the waterproof mechanism 7 is used to prevent the problem of water seepage in the structure.
[0024] The provision of assembled prefabricated assembly panel 1, prefabricated assembly panel 2, prefabricated assembly panel 3, and prefabricated assembly panel 4 can shorten the construction period and improve construction efficiency. Through the cross-assembly structure, the overall structural stability of the tunnel lining can also be enhanced. A waterproof mechanism 7 is provided at the connection between the prefabricated assembly panel 1 and the prefabricated assembly panel 2. The effective waterproof design can prevent groundwater penetration from eroding and damaging the internal structure of the tunnel, thereby extending the service life of the tunnel.
[0025] The first fixing mechanism 5 includes a mounting hole 51, which is opened on one side of the prefabricated assembly plate 1, and is connected to a fixing bolt 52, and a fixing block 53 is connected above the fixing bolt 52. A screw 54 is provided on one side of the prefabricated assembly plate 2, and a nut 55 is provided on one side of the prefabricated assembly plate 1.
[0026] First, install the fixing bolt 52 inside the mounting hole 51 of the prefabricated assembly panel 3 3, and then install the prefabricated assembly panel 1 1 on the upper side of the fixing bolt, and assemble the prefabricated assembly panel 1 1 and the prefabricated assembly panel 3 3. If the prefabricated assembly panel 1 1 and the prefabricated assembly panel 2 2 are assembled through the screw 54 and the nut 55, repeat this process to assemble the tunnel.
[0027] The second fixing mechanism 6 includes a fixing plate 1 61 , which is connected to a fixing bracket 1 62 and a fixing bracket 2 63 . The outer side of the prefabricated assembly plate 3 is fixedly connected to the fixing plate 2 , and the top of the fixing plate 2 is fixedly connected to the screw 2 .
[0028] A second fixing mechanism 6 is set up, and the fixing plate 1 61 is set on the prefabricated assembly plate 1, and it is fixed by the pipe bracket 1 and the fixing bracket 2 63, and the fixing plate 2 64 is fixed on one side of the prefabricated assembly plate 3 3, and the fixing plate 1 61 and the fixing plate 2 64 are further fixed by the screw 2 65 and the screw 3 66.
[0029] The waterproof mechanism 7 includes waterproof rubber 1 71, which is arranged on one side of the fixed plate 1 61. The waterproof rubber 1 71 is connected to waterproof rubber 4 74, which is connected to one side of the fixed plate 2 64. The prefabricated assembly plate 1 is connected to waterproof rubber 2 72, which is connected to waterproof rubber 3 73, which is connected to one side of the prefabricated assembly plate 2.
[0030] Waterproof rubber 2 72 and waterproof rubber 3 73 are provided at the joint of prefabricated assembly panel 1 and prefabricated assembly panel 2 2 to prevent water seepage at the joint of prefabricated assembly panel 1 and prefabricated assembly panel 2 2. Waterproof rubber 1 71 and waterproof rubber 4 74 are provided at the joint of fixed plate 1 61 and fixed plate 2 64 to prevent water seepage at the fixed joint. The effective waterproof design can prevent the erosion and damage of the internal structure of the tunnel by groundwater infiltration.
[0031] Example 2
[0032] In the second embodiment, other structures remain unchanged, and the difference from the first embodiment is that the prefabricated assembly plate 1 is set to an inverted 7 shape.
[0033] The prefabricated assembly plate 1 is set to an inverted 7 shape to facilitate filling the gap on one side of the prefabricated assembly plate 3 3, making the whole more complete and enhancing the overall structural stability of the tunnel lining.
[0034] The fixing block 53 is configured to be conical.
[0035] The fixing block 53 is set to a conical shape, which is smaller at the front and larger at the back, so that the fixing block 53 can be easily inserted into the upper mounting hole 51 for fixation.
[0036] The first fixing bracket 62 and the second fixing bracket 63 are arranged in a triangle shape.
[0037] The fixing bracket 1 62 and the fixing bracket 2 63 are set to be a triangle, so that one side of the fixing bracket 1 62 and the fixing bracket 2 63 contacts the prefabricated assembly board 1 and the other side contacts the fixing board 1 61 and the fixing board 2 64 to play a fixing role.
[0038] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.
[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A joint structure for an assembled rectangular tunnel lining, comprising: Prefabricated assembly panel one (1); The invention is characterized in that: it also includes: a prefabricated assembly board 2 (2), the prefabricated assembly board 2 (2) is located on one side of the prefabricated assembly board 1 (1), a prefabricated assembly board 3 (3) is connected below the prefabricated assembly board 1 (1), and a prefabricated assembly board 4 (4) is connected on one side of the prefabricated assembly board 3 (3); A first fixing mechanism (5), the first fixing mechanism (5) being located below the prefabricated assembly panel one (1), and the first fixing mechanism (5) being used for fixing and connecting the prefabricated assembly panel one (1); A second fixing mechanism (6), the second fixing mechanism (6) being located on one side of the prefabricated assembly panel one (1), the second fixing mechanism (6) being used to fix the connection between the prefabricated assembly panel one (1) and the prefabricated assembly panel three (3); A waterproof mechanism (7) is located on one side of the prefabricated assembly board (1), and the waterproof mechanism (7) is used to prevent water seepage into the structure.
2. The joint structure of the assembled rectangular tunnel lining according to claim 1 is characterized in that: The first fixing mechanism (5) includes a mounting hole (51), the mounting hole (51) is opened on one side of the prefabricated assembly plate (1), the mounting hole (51) is connected to a fixing bolt (52), a fixing block (53) is connected above the fixing bolt (52), a screw (54) is provided on one side of the prefabricated assembly plate (2), and a nut (55) is provided on one side of the prefabricated assembly plate (1).
3. The joint structure of the assembled rectangular tunnel lining according to claim 1 is characterized in that: The second fixing mechanism (6) includes a fixing plate 1 (61), the fixing plate 1 (61) is connected to a fixing bracket 1 (62) and a fixing bracket 2 (63), the outer side of the prefabricated assembly plate 3 (3) is fixedly connected to a fixing plate 2 (64), and the top end of the fixing plate 2 (64) is fixedly connected to a screw 2 (65).
4. The joint structure of the assembled rectangular tunnel lining according to claim 1 is characterized in that: The waterproof mechanism (7) comprises a waterproof rubber (71), the waterproof rubber (71) being arranged on one side of the fixed plate (61), the waterproof rubber (71) being connected to a waterproof rubber (74), the waterproof rubber (74) being connected to one side of the fixed plate (64), the prefabricated assembly plate (1) being connected to a waterproof rubber (72), the waterproof rubber (72) being connected to a waterproof rubber (73), the waterproof rubber (73) being connected to one side of the prefabricated assembly plate (2).
5. The joint structure of the assembled rectangular tunnel lining according to claim 1 is characterized in that: The prefabricated assembly plate 1 (1) is configured as an inverted 7 shape.
6. The joint structure of the assembled rectangular tunnel lining according to claim 2, characterized in that: The fixing block (53) is configured to be conical.
7. The joint structure of the assembled rectangular tunnel lining according to claim 3 is characterized in that: The fixing bracket 1 (62) and the fixing bracket 2 (63) are arranged in a triangle shape.