Inserting plate for tunnel deformation joint

Abstract

The utility model relates to an inserting plate for a tunnel deformation joint, and belongs to the technical field of deformation joints. The inserting plate for the tunnel deformation joint comprises a vertical plate and arc-shaped plates installed on the two sides of the vertical plate. The butt joint mechanism is arranged between the vertical plate and the arc-shaped plate and is used for completing splicing and assembling between the vertical plate and the arc-shaped plate, and meanwhile, the shape plate anti-pressure capability of the vertical plate is improved; wherein the butt-joint mechanism comprises a base and two butt-joint strips, butt-joint grooves are formed in the two sides of the base, the butt-joint strips are located in the butt-joint grooves, a set of butt-joint holes communicating with the butt-joint grooves are formed in the base, two strip-shaped holes aligned with the butt-joint holes are formed in each butt-joint strip, and the butt-joint strips are located in the butt-joint grooves. The butt joint holes and the strip-shaped holes can be connected through bolts. The vertical plates can have good compression resistance movement performance, stress concentration and damage phenomena are reduced, meanwhile, assembly type design is adopted, the difficulty of production, transfer and installation is reduced, and the butt joint effect with the inner wall of the tunnel is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of expansion joint technology, and in particular to an insert plate for tunnel expansion joints. Background Technology

[0002] Tunnel expansion joints are pre-designed joint structures in tunnel engineering to accommodate structural deformation (such as temperature expansion and contraction, foundation settlement, seismic displacement, etc.). Their core functions are to release stress, prevent cracking, and ensure waterproof sealing. Insert plates and cover plates are the core components within the expansion joint, often used to cover the joint and enhance its compressive strength.

[0003] In existing technologies, T-shaped or Y-shaped inserts are typically used to directly insert into the expansion joint to improve its compressive strength, and the joint area is covered. However, these methods have the following drawbacks in actual use: the compressive and expansion performance of the inserts is poor, and they are prone to damage due to stress concentration. Furthermore, the integrated design increases the difficulty of production, transportation, and installation, and the connection with the tunnel wall is not ideal. Utility Model Content

[0004] Therefore, it is necessary to provide an insert plate for tunnel expansion joints to address the problems of easy damage due to stress concentration and poor connection with the tunnel wall.

[0005] An insert plate for tunnel expansion joints includes a vertical plate and arc-shaped plates installed on both sides thereon; it also includes a docking mechanism, which is disposed between the vertical plate and the arc-shaped plates and is used to complete the splicing and assembly of the two, while improving the compressive strength of the vertical plate; wherein, the docking mechanism includes a base and two docking strips, the base has docking grooves on both sides, the docking strips are located inside the docking grooves, the base has a set of docking holes communicating with the docking grooves, and the docking strips have two strip-shaped holes aligned with the docking holes, the docking holes and the strip-shaped holes can be connected by bolts.

[0006] In one embodiment, one side of the arc-shaped plate is mounted to the outside of the mating strip by screws, and a rubber frame fitted onto the outside of the mating strip is embedded inside the mating groove.

[0007] In one embodiment, one side of the vertical plate is hinged to the interior of the base, and spring steel sheets are provided on both sides of the vertical plate inside the base.

[0008] In one embodiment, the vertical plate includes two steel plates and a rubber layer disposed between the two steel plates.

[0009] In one embodiment, a set of sliders is slidably connected to both sides of the vertical plate, and the cross-section of the sliders is V-shaped.

[0010] In one embodiment, the surface of the base is provided with a set of flared openings, which communicate with the mating holes.

[0011] In one embodiment, the arc-shaped plate has a set of mounting holes inside, and the arc-shaped plate is used to connect with the inner wall of the tunnel.

[0012] Beneficial effects

[0013] 1. By setting spring steel sheets and rubber frames, when the vertical plate is subjected to lateral and longitudinal pressure, it can move in response to the spring steel sheets and rubber frames. With the setting of strip holes, when subjected to lateral pressure, the base and the vertical plate can be offset to resist the pressure, which has good anti-pressure movement performance. With the addition of sliders to disperse the stress, the phenomenon of stress concentration leading to damage to the vertical plate is reduced.

[0014] 2. By setting up connecting strips and curved plates, the connecting strips, base and curved plates are designed separately for subsequent assembly and use, which effectively reduces the difficulty of production, transportation and installation. Moreover, the connecting strips and curved plates are connected by screws, which makes it easy for users to select the corresponding curved plates according to the curvature of the tunnel inner wall of the area to be installed, ensuring the connection effect with the tunnel inner wall. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is an exploded view of the arc-shaped plate and rubber frame of this utility model;

[0018] Figure 3 This is a cross-sectional schematic diagram of the base and the flared opening of this utility model;

[0019] Figure 4 This is a schematic diagram of the slider of this utility model.

[0020] Figure label:

[0021] 100. Vertical plate; 110. Spring steel sheet; 111. Sliding bar; 200. Curved plate; 300. Docking mechanism; 310. Base; 311. Docking groove; 312. Flaring; 313. Rubber frame; 320. Docking strip; 321. Strip hole. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0025] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0026] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this specification belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0027] The following is combined Figures 1-4This invention describes an insert plate for tunnel expansion joints.

[0028] In one embodiment, a plate for tunnel expansion joints includes a vertical plate 100 and arc-shaped plates 200 installed on both sides thereof; it also includes a docking mechanism 300, which is disposed between the vertical plate 100 and the arc-shaped plates 200 and is used to complete the splicing and assembly between the two, while improving the compressive strength of the vertical plate 100; wherein, the docking mechanism 300 includes a base 310 and two docking strips 320, both sides of the base 310 are provided with docking grooves 311, the docking strips 320 are located inside the docking grooves 311, the base 310 has a set of docking holes communicating with the docking grooves 311, and the docking strips 320 have two strip holes 321 aligned with the docking holes, the docking holes and the strip holes 321 can be connected by bolts.

[0029] like Figure 2 and Figure 3 As shown, one side of the arc plate 200 is installed to the outside of the mating strip 320 by screws, and a rubber frame 313 fitted onto the outside of the mating strip 320 is embedded inside the mating groove 311.

[0030] In this embodiment, the vertical plate 100, the connecting strip 320, and the arc plate 200 are set separately and spliced ​​in sequence during use. Then, the vertical plate 100 is placed into the expansion joint to improve the structural strength of the filling material inside the expansion joint. When the vertical plate 100 encounters longitudinal pressure, the rubber frame 313 in the base 310 will abut against the connecting strip 320 and deform, so that the vertical plate 100 is in a buffer position. When the vertical plate 100 encounters lateral pressure, the vertical plate 100 together with the base 310 can be laterally offset and buffered through the corresponding bolts in the strip hole 321 to reduce the damage to the vertical plate 100.

[0031] It should be noted that the mating hole is an internal threaded hole that fits the bolt. The inside of the strip hole 321 is smooth and allows the bolt to move laterally. The curvature of the arc plate 200 can be selected according to the installation position and is connected to the mating strip 320 with screws.

[0032] like Figure 1 , Figure 2 and Figure 3 As shown, one side of the vertical plate 100 is hinged to the interior of the base 310, and spring steel sheets 110 located inside the base 310 are provided on both sides of the vertical plate 100.

[0033] When the vertical plate 100 moves under pressure at the connection with the base 310, the spring steel sheet 110 is squeezed to provide a buffering effect.

[0034] It should be noted that spring steel sheet 110 has high fatigue strength and a long service life under repeated loads; and has sufficient toughness and plasticity.

[0035] like Figure 1 As shown, the vertical plate 100 includes two steel plates and a rubber layer, with the rubber layer disposed between the two steel plates.

[0036] The steel plate bears the main load, while the rubber layer absorbs vibration and minor deformation.

[0037] It should be noted that the steel plate is galvanized steel plate, and the rubber layer is made of EPDM rubber.

[0038] like Figure 1 and Figure 4 As shown, a set of sliders 111 are slidably connected to both sides of the vertical plate 100, and the cross section of the sliders 111 is V-shaped.

[0039] During the compression process, the V-shaped opening of the slide bar 111 is used to connect with the filling material. Combined with its own sliding setting, it disperses stress, reduces stress concentration and excessive pressure, thereby reducing the occurrence of damage to the vertical plate 100.

[0040] like Figure 1 , Figure 2 and Figure 3 As shown, a set of flared openings 312 are provided on the surface of the base 310, and the flared openings 312 are connected to the mating holes.

[0041] After the base 310 and the connecting strip 320 are connected, the user can inject epoxy resin glue at the connection point to fill the gap, improve the shear and tensile strength of the connection point, and reduce the risk of fatigue cracks caused by local stress concentration.

[0042] like Figure 1 and Figure 2 As shown, the arc-shaped plate 200 has a set of mounting holes inside, and the arc-shaped plate 200 is used to connect with the inner wall of the tunnel.

[0043] Expansion bolts are used to pass through the mounting holes, and then the arc plate 200 is installed onto the inner wall of the tunnel.

[0044] Working principle: Users can select the corresponding arc plate 200 and the connecting strip 320 according to the location of the expansion joint. Then, the connecting strip 320 is inserted into the connecting groove 311 and placed inside the rubber frame 313. Then, the vertical plate 100 is compacted into the joint filler material in the expansion joint using construction equipment. Finally, the arc plate 200 is installed to the inner wall of the tunnel using expansion bolts. When the vertical plate 100 is under pressure, the sliding strip 111 is used to disperse the stress. With the corresponding setting of the strip hole 321, the rubber frame 313 and the spring steel sheet 110, the vertical plate 100 can be moved and buffered in the corresponding direction to reduce the occurrence of damage.

[0045] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0046] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. An insert panel for a tunnel deformation joint, characterized in that, The utility model relates to a vertical plate (100) and the arc plate (200) installed to both sides thereof. Further comprising a docking mechanism (300) arranged between the vertical plate (100) and the arc plate (200) and used for completing the splicing assembly between the two while improving the plate compression resistance of the vertical plate (100). The docking mechanism (300) comprises a base (310) and two docking strips (320), both sides of the base (310) are provided with docking grooves (311), the docking strips (320) are inside the docking grooves (311), a group of docking holes communicating with the docking grooves (311) are arranged inside the base (310), two strip holes (321) aligned with the docking holes are arranged inside the docking strips (320), and the docking holes and the strip holes (321) are connected through bolts. One side of the arc plate (200) is installed to the outside of the docking strip (320) through a screw, and the inside of the docking groove (311) is embedded with a rubber frame (313) sleeved to the outside of the docking strip (320).

2. An insert panel for a tunneling deformation joint according to claim 1, wherein, One side of the vertical plate (100) is hinged to the inside of the base (310), and both sides of the vertical plate (100) are provided with spring steel sheets (110) inside the base (310).

3. An insert for a tunneling deformation joint according to claim 1, wherein, The vertical plate (100) comprises two steel plates and a rubber layer arranged between the two steel plates.

4. The insert for a tunneling deformation joint according to claim 1, wherein, Both sides of the vertical plate (100) are slidably connected with a group of sliding strips (111), and the cross section of the sliding strip (111) is V-shaped.

5. The insert for a tunneling deformation joint according to claim 1, wherein, The surface of the base (310) is provided with a group of flared portions (312) communicating with the docking holes.

6. The insert for a tunneling deformation joint according to claim 1, wherein, The inside of the arc plate (200) is provided with a group of mounting holes, and the arc plate (200) is used for docking with the inner wall of a tunnel.

7. An insert for a tunneling deformation joint according to claim 1, wherein, ​

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