High-speed railway tunnel lining crack surface protection muscle side edge reinforcing structure

Abstract

This utility model relates to the field of railway engineering technology, and in particular to a side reinforcement structure for the facing reinforcement of cracks in high-speed railway tunnel lining. It includes reinforcement plate assemblies symmetrically arranged on both sides of the facing reinforcement. The reinforcement plate assemblies are fixed to the tunnel lining by first anchor bolts. Each reinforcement plate assembly includes a reinforcement plate body and a connecting structure. Adjacent reinforcement plate bodies are detachably connected via the connecting structure. The inner side of the reinforcement plate body is provided with transverse and longitudinal ribs to enhance the interlocking force with the mortar layer, and the outer side is provided with reinforcing ribs and a second transverse rib. The connecting structure consists of a fixing block and a snap-fit ​​component. The snap-fit ​​component is spring-driven to lock the insertion block into a slot on the snap-fit ​​plate. This utility model disperses the impact of train aerodynamic loads on the edge of the facing reinforcement through the lateral reinforcement plates, suppresses the peeling of the reinforcement layer, allows modular splicing to adapt to different crack lengths, blocks corrosive media from invading the reinforced area of ​​the facing reinforcement through the joints, and extends the structural lifespan.

Description

Technical Field

[0001] This utility model relates to the field of railway engineering technology, and in particular to a side reinforcement structure for the reinforcing bars of the lining crack in a high-speed railway tunnel. Background Technology

[0002] Cracks appear in the lining of high-speed railway tunnels due to inadequate curing after the concrete is poured or due to the complexity of the site, which leads to a significant increase in the pressure of the surrounding rock and groundwater. These cracks continue to develop under the influence of environmental factors, resulting in a significant reduction in the load-bearing capacity of the tunnel lining structure and threatening the tunnel's operational safety and service life.

[0003] Traditional treatment of tunnel defects involves covering the cracked area with reinforcing bars and injecting mortar to form a reinforcement layer. However, high-speed trains generate strong aerodynamic loads in tunnels, and their lateral forces act directly on the protruding surface of the reinforcing bar reinforcement, which can easily lead to stress concentration, peeling, or even detachment of the reinforcement layer at the edge, posing a safety hazard to trains.

[0004] Existing technologies lack effective protection against lateral aerodynamic loads on the reinforcing ribs, and there is an urgent need for a reinforcement structure that can enhance lateral resistance. Utility Model Content

[0005] The purpose of this utility model is to provide a side reinforcement structure for the reinforcing bars of the lining crack in a high-speed railway tunnel, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides a side reinforcement structure for crack protection reinforcement in high-speed railway tunnel lining, including reinforcement plate assemblies disposed on the left and right sides of the protection reinforcement. The reinforcement plate assemblies are fixed to the tunnel lining by a plurality of first anchor bolts. The reinforcement plate assembly includes a connecting structure and a reinforcement plate body, and adjacent reinforcement plate bodies are fixedly connected to each other through the connecting structure.

[0007] Preferably, the inner wall of the reinforcing plate body is provided with a plurality of first transverse ribs and longitudinal ribs, and the outer wall is provided with reinforcing ribs, and the plurality of reinforcing ribs are connected by second transverse ribs.

[0008] Preferably, the bottom of the front and rear ends of the reinforcing plate body is provided with snap-fit ​​plates, and the snap-fit ​​plates are provided with snap-fit ​​grooves.

[0009] Preferably, the connection structure includes a fixing block and a snap-fit ​​component. The fixing block is fixedly connected to the reinforcing plate by the snap-fit ​​component. The bottom of the fixing block is provided with a strip-shaped groove, and the snap-fit ​​component is fixed inside the strip-shaped groove.

[0010] Preferably, the snap-fit ​​component includes a fixed base, a guide rod, a plug-in base, and a plug-in block. The fixed base is fixedly connected to the strip groove. The guide rod is symmetrically arranged at both ends of the fixed base. One end of the guide rod is connected to the fixed base, and the other end is slidably connected to the plug-in block. The plug-in block is disposed inside the plug-in base and is slidably connected to the plug-in base.

[0011] Preferably, a spring is sleeved on the outside of the guide rod, one end of the spring is connected to the fixed base, and the other end is fixedly connected to the plug block.

[0012] Preferably, the fixing seat overlaps with the main body of the reinforcing plate and is fixed by a second anchor bolt.

[0013] Therefore, the present invention provides a side reinforcement structure for crack protection reinforcement in high-speed railway tunnel lining, which has the following beneficial effects: by symmetrically setting reinforcement plate assemblies on both sides of the protection reinforcement, a lateral protective barrier is formed, which disperses the direct impact of train aerodynamic load on the reinforcement layer. The reinforcing ribs and second transverse ribs set on the outer side of the reinforcement plate body improve the bending resistance and fatigue resistance.

[0014] Adjacent reinforcement plates are fixedly connected to each other through a detachable connection structure, which can adapt to different crack length requirements. After pressing the plug-in block to compress the spring, it is inserted into the slot on the snap-fit ​​plate. After releasing, the spring returns to its original position and automatically locks, improving assembly efficiency. The fixing seat is fixed to the reinforcement plate body by overlapping with the second anchor bolt to strengthen the connection strength. Adjacent reinforcement plates overlap each other to enhance sealing and prevent environmental corrosive media from entering the reinforcement area of ​​the facing rib through the joint, thus extending the service life of the structure.

[0015] The transverse and longitudinal ribs on the inner side of the reinforcing plate increase the contact area and mechanical interlocking force with the grout, thus inhibiting the peeling of the grout layer. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a side reinforcement structure for crack protection bars in the lining of a high-speed railway tunnel, as described in this utility model embodiment.

[0017] Figure 2 This is a cross-sectional view of a side reinforcement structure for crack protection bars in the lining of a high-speed railway tunnel, as described in this utility model embodiment.

[0018] Figure 3 This is an exploded view of a side reinforcement structure for crack protection bars in the lining of a high-speed railway tunnel, as described in this utility model embodiment.

[0019] Figure 4 This is a front view of a side reinforcement structure for crack protection bars in the lining of a high-speed railway tunnel, as described in this utility model embodiment.

[0020] Figure 5 for Figure 3 Enlarged view of point A in the middle;

[0021] Figure 6 This is a schematic diagram of another perspective of a side reinforcement structure for crack protection bars in the lining of a high-speed railway tunnel according to an embodiment of the present invention.

[0022] Figure Labels

[0023] 1. Reinforcing plate assembly; 11. First anchor bolt; 2. Connecting structure; 21. Fixing block; 211. Strip groove; 22. Snap-fit ​​component; 221. Fixing seat; 222. Guide rod; 223. Insertion seat; 224. Insertion block; 225. Spring; 3. Reinforcing plate body; 31. First transverse rib; 32. Longitudinal rib; 33. Reinforcing bar; 34. Second transverse rib; 35. Snap-fit ​​plate; 36. Snap-fit ​​groove; 4. Second anchor bolt; 5. Tunnel lining; 6. Reinforcing bar. Detailed Implementation

[0024] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0025] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0026] Example

[0027] like Figure 1-6 As shown, this utility model discloses a side reinforcement structure for crack protection reinforcement in high-speed railway tunnel lining, including reinforcement plate assemblies 1 arranged on the left and right sides of the protection reinforcement 6. The reinforcement plate assemblies 1 are fixed to the tunnel lining 5 by a number of first anchor bolts 11. The reinforcement plate assemblies 1 include a connecting structure 2 and a reinforcement plate body 3. Adjacent reinforcement plate bodies 3 are fixedly connected to each other through the connecting structure 2 to achieve modular expansion to adapt to different crack lengths.

[0028] The inner wall of the reinforcing plate body 3 is provided with several first transverse ribs 31 and longitudinal ribs 32. By increasing the surface area, the interlocking force with the grout is improved, and the peeling of the reinforcing layer is suppressed. The outer wall is provided with reinforcing ribs 33. Several reinforcing ribs 33 are connected by second transverse ribs 34 to form a rigid grid skeleton to disperse the impact of aerodynamic load and improve the bending resistance.

[0029] The front and rear ends of the main body 3 of the reinforcing plate are provided with snap-fit ​​plates 35. The snap-fit ​​plates 35 are provided with snap-fit ​​grooves 36. The connecting structure 2 includes a fixing block 21 and a snap-fit ​​member 22. The fixing block 21 is fixedly connected to the reinforcing plate through the snap-fit ​​member 22. The bottom of the fixing block 21 is provided with a strip groove 211, and the snap-fit ​​member 22 is fixed inside the strip groove 211.

[0030] The snap-fit ​​component 22 includes a fixed base 221, a guide rod 222, a plug-in base 223, and a plug-in block 224. The fixed base 221 is fixedly connected to the strip groove 211. The guide rod 222 is symmetrically arranged at both ends of the fixed base 221. One end of the guide rod 222 is connected to the fixed base 221, and the other end is slidably connected to the plug-in block 224. The plug-in block 224 is located inside the plug-in base 223 and is slidably connected to the plug-in base 223. A spring 225 is sleeved on the outside of the guide rod 222. One end of the spring 225 is connected to the fixed base 221, and the other end is fixedly connected to the plug-in block 224. During assembly, pressing the plug-in block 224 compresses the spring 225 and inserts it into the snap-fit ​​slot 36 of the snap-fit ​​plate 35 of the adjacent reinforcing plate. After releasing, the spring 225 resets to achieve automatic locking.

[0031] The fixing seat 221 overlaps with the main body of the reinforcing plate 3 and is further fixed by the second anchor bolt 4 to ensure a stable connection.

[0032] This utility model adopts the above-mentioned structure: by setting modular reinforcing plate components on both sides of the facing rib, a continuous lateral protection is formed. The outer side of the reinforcing plate body is set with a rigid grid skeleton composed of reinforcing ribs and transverse ribs, which effectively disperses the impact of the aerodynamic load of high-speed trains on the edge of the facing rib. The transverse and longitudinal ribs on the inner side increase the contact area with the grouting mortar, thereby increasing the mechanical interlocking force with the mortar and inhibiting the peeling of the reinforcement layer. Adjacent reinforcement plates are quickly assembled by spring-driven snap-fit ​​parts. After pressing the plug-in block to compress the spring, it is embedded into the slot, which automatically locks it, improving construction efficiency. At the same time, the fixing block and the main body of the reinforcement plate overlap with each other and cooperate with the second anchor bolt to further improve the connection stability. The overlap seal between adjacent reinforcement plates effectively prevents water vapor or other corrosive media from entering the reinforcement area. This structure has the characteristics of impact resistance, peeling resistance and corrosion resistance. It can flexibly adapt to different crack lengths and extend the service life of the tunnel lining reinforcement structure.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. A side reinforcement structure for crack protection reinforcement in high-speed railway tunnel lining, characterized in that: It includes reinforcing plate assemblies disposed on the left and right sides of the facing reinforcement. The reinforcing plate assemblies are fixed to the tunnel lining by a number of first anchor bolts. The reinforcing plate assemblies include a connecting structure and a reinforcing plate body. Adjacent reinforcing plate bodies are fixedly connected to each other through the connecting structure.

2. The side reinforcement structure for crack protection reinforcement in high-speed railway tunnel lining according to claim 1, characterized in that: The inner wall of the reinforcing plate body is provided with a number of first transverse ribs and longitudinal ribs, and the outer wall is provided with reinforcing ribs. The reinforcing ribs are connected by second transverse ribs.

3. The side reinforcement structure for crack protection reinforcement in high-speed railway tunnel lining according to claim 2, characterized in that: The bottom of the front and rear ends of the main body of the reinforcing plate is provided with snap-fit ​​plates, and the snap-fit ​​plates are provided with snap-fit ​​grooves.

4. The side reinforcement structure for crack protection reinforcement in high-speed railway tunnel lining according to claim 1, characterized in that: The connection structure includes a fixing block and a snap-fit ​​component. The fixing block is fixedly connected to the reinforcing plate by the snap-fit ​​component. The bottom of the fixing block is provided with a strip-shaped groove, and the snap-fit ​​component is fixed inside the strip-shaped groove.

5. The side reinforcement structure for crack protection reinforcement in high-speed railway tunnel lining according to claim 4, characterized in that: The snap-fit ​​component includes a fixed base, a guide rod, a plug-in base, and a plug-in block. The fixed base is fixedly connected to the strip groove. The guide rod is symmetrically arranged at both ends of the fixed base. One end of the guide rod is connected to the fixed base, and the other end is slidably connected to the plug-in block. The plug-in block is disposed inside the plug-in base and is slidably connected to the plug-in base.

6. The side reinforcement structure for crack protection reinforcement in high-speed railway tunnel lining according to claim 5, characterized in that: A spring is sleeved on the outside of the guide rod. One end of the spring is connected to the fixed base, and the other end is fixedly connected to the plug block.

7. The side reinforcement structure for crack protection reinforcement in high-speed railway tunnel lining according to claim 6, characterized in that: The fixing seat overlaps with the main body of the reinforcing plate and is fixed by the second anchor bolt.

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