A reinforcement and strengthening device for treating defects in the lining of existing railway tunnels

Abstract

This utility model relates to the field of tunnel construction technology, and in particular to a reinforcement device for treating defects in the lining of existing railway tunnels. It includes a first corrugated plate assembly and a second corrugated plate assembly arranged longitudinally adjacent to it. The first and second corrugated plate assemblies are staggered and fixed to the tunnel lining with chemical anchors. The first corrugated plate assembly consists of two circumferentially assembled corrugated plates, and the second corrugated plate assembly consists of one circumferentially assembled corrugated plate. Both corrugated plates consist of corrugated plates and reinforcing ribs. A grouting hole is provided in the center of each corrugated plate, through which high-strength concrete is injected into the gap between the corrugated plate assembly and the tunnel lining. The bottoms of corrugated plates one and two, near the base of the tunnel lining sidewall, are fixed to a side ditch and anchored to the tunnel lining with anchor rods. This utility model improves the tunnel structure's resistance to deformation, the sealing performance of the reinforcement device, structural stability, and construction efficiency.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction technology, and in particular to a reinforcement device for the treatment of defects in the lining of existing railway tunnels. Background Technology

[0002] After tunnel construction, due to the influence of terrain, geology, and climate conditions, as well as factors such as inadequate tunnel design standards, insufficient design considerations, failure to strictly adhere to specifications during construction, and inadequate maintenance, the tunnel lining may experience varying degrees of cracking during operation. This reduces the stability and safety of the tunnel structure and may even endanger traffic safety. Therefore, it is necessary to reinforce and strengthen the damaged lining. Existing reinforcement methods typically involve cast-in-place reinforced concrete lining, but this construction method involves numerous procedures, a long construction period, low construction efficiency, and high risks. Utility Model Content

[0003] The purpose of this utility model is to provide a reinforcement device for the treatment of defects in the lining of existing railway tunnels, which solves the problems mentioned in the background art, improves construction efficiency, makes construction fast and convenient, and saves construction time.

[0004] To achieve the above objectives, this utility model provides a reinforcement device for treating defects in the lining of existing railway tunnels, including a first corrugated plate assembly and a second corrugated plate assembly arranged longitudinally adjacent to it. The first corrugated plate assembly and the second corrugated plate assembly are staggered and fixed to the tunnel lining by chemical anchors. The first corrugated plate assembly is composed of a first corrugated plate and a second corrugated plate assembled in a circumferential direction, and the second corrugated plate assembly is composed of a first corrugated plate assembled in a circumferential direction. The adjacent corrugated plates 1 and 2 are overlapped and fixed with bolts, and a sealing gasket is provided at each of their overlap joints. Both the first corrugated plate and the second corrugated plate are provided with reinforcing ribs on their arc-shaped outer sides. The first corrugated plate and the second corrugated plate are respectively provided with a first baffle and a second baffle on both sides along the longitudinal direction of the tunnel, and a third baffle and a fourth baffle are respectively provided on both sides along the circumferential direction of the tunnel. The first baffle and the second baffle are respectively provided with a first folding plate and a second folding plate that fold outwards, and the third baffle and the fourth baffle are respectively provided with a third folding plate that folds outwards and a fourth folding plate that folds inwards.

[0005] Preferably, both the first corrugated plate and the second corrugated plate are provided with grouting holes at their center.

[0006] Preferably, both the third baffle and the fourth baffle are provided with bolt holes and first through holes, and the first folding plate and the second folding plate are provided with a plurality of evenly spaced anchor bolt holes.

[0007] Preferably, each of the reinforcing ribs is provided with a plurality of second through holes, and both the first through holes and the second through holes are used for concrete flow.

[0008] Preferably, the sealing gasket is disposed between the third and fourth baffles of circumferentially adjacent corrugated plate assemblies.

[0009] Preferably, the bottom of corrugated plate one and corrugated plate two near the foot of the tunnel lining side wall are placed above the side ditch, and a foot pad steel plate is fixed on the side ditch. The ends of corrugated plate one and corrugated plate two are fixedly connected to the foot pad steel plate by angle steel and anchor bolts, and anchor rods are also provided at the ends of corrugated plate one and corrugated plate two.

[0010] Preferably, the anchor bolt is fixedly connected to corrugated plate one or corrugated plate two, the anchor bolt is a mortar anchor bolt, the length of the anchor bolt is 4m, and the spacing along the line direction is 1.2m.

[0011] Preferably, high-strength concrete is poured between the corrugated plate one, the corrugated plate two and the tunnel lining.

[0012] Therefore, the present invention provides a reinforcement device for the treatment of defects in the lining of existing railway tunnels, which has the following beneficial effects: the adjacent corrugated plates 1 and 2 in the tunnel ring direction are connected to each other by bolts, which can be prefabricated in the factory and quickly assembled on the construction site, saving construction time and improving construction efficiency. In addition, a sealing gasket is provided at the joint where the third baffle and the fourth baffle overlap to ensure sealing and prevent concrete leakage.

[0013] The first and second corrugated plate assemblies, which are longitudinally adjacent to each other in the tunnel, are connected and fixed to the tunnel lining by chemical anchors. Corrugated plate one and corrugated plate two are also equipped with reinforcing ribs. The combination of corrugated steel plates and reinforcing ribs improves the resistance to deformation. Concrete is poured between the corrugated plates and the tunnel lining through grouting holes to make the overall structure more stable. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a reinforcement device for treating defects in the lining of existing railway tunnels, as described in this utility model embodiment. Figure 2 for Figure 1 A magnified view of a section at point A in the middle; Figure 3 This is a cross-sectional view of adjacent corrugated plate assemblies spliced ​​along the circumference of the tunnel in this embodiment of the present invention; Figure 4 for Figure 3 Enlarged view of point B in the middle; Figure 5 This is a schematic diagram of the corrugated plate structure in an embodiment of this utility model; Figure 6 This is a structural schematic diagram of the corrugated plate from another perspective in an embodiment of this utility model; Figure 7 This is a schematic diagram of the structure of some corrugated plate components spliced ​​together in an embodiment of this utility model; Figure 8 This is a structural schematic diagram from another perspective showing the interlocking of some corrugated plate components in an embodiment of this utility model; Figure Labels 1. First corrugated plate assembly; 2. Second corrugated plate assembly; 3. Corrugated plate one; 4. Corrugated plate two; 5. Reinforcing rib; 6. First baffle; 7. Second baffle; 8. Third baffle; 9. Fourth baffle; 10. First folding plate; 11. Second folding plate; 12. Third folding plate; 13. Fourth folding plate; 14. Grouting hole; 15. First through hole; 16. Second through hole; 17. Sealing gasket; 18. Foot pad steel plate; 19. Angle steel; 20. Anchor bolt; 21. Anchor rod; 22. Bolt hole; 23. Tunnel lining; 24. Anchor bolt. Detailed Implementation

[0015] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0016] 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.

[0017] Example like Figure 1-8 As shown, this utility model discloses a reinforcement device for treating defects in the lining of existing railway tunnels, comprising a first corrugated plate assembly 1 and a second corrugated plate assembly 2 arranged longitudinally adjacent to it. The first corrugated plate assembly 1 and the second corrugated plate assembly 2 are assembled with staggered joints and fixed to the tunnel lining 23 by chemical anchors 24. The first corrugated plate assembly 1 is composed of corrugated plate 3 and corrugated plate 4 assembled in a circumferential manner, and the second corrugated plate assembly 2 is composed of corrugated plate 3 assembled in a circumferential manner.

[0018] The adjacent corrugated plates 1-3 and corrugated plates 1-3 and 2-4 are overlapped and fixed with bolts, and a sealing gasket 17 is provided at the overlap joint.

[0019] Both corrugated plate 3 and corrugated plate 4 are provided with reinforcing ribs 5 on their arc-shaped outer sides. Corrugated plate 3 and corrugated plate 4 are provided with first baffles 6 and second baffles 7 on both sides along the longitudinal direction of the tunnel, and third baffles 8 and fourth baffles 9 on both sides along the circumferential direction of the tunnel.

[0020] The first baffle 6 and the second baffle 7 are respectively provided with a first folding plate 10 and a second folding plate 11 extending outwards, and the third baffle 8 and the fourth baffle 9 are respectively provided with a third folding plate 12 extending outwards and a fourth folding plate 13 extending inwards. In this embodiment, at the joint where adjacent corrugated plates 3 or corrugated plates 3 and 4 overlap in the tunnel circumferential direction, that is, between the third baffle 8 of one corrugated plate 3 and the fourth baffle 9 of the adjacent corrugated plate 3, a sealing gasket 17 is provided. This sealing gasket 17 ensures the sealing of the joint and prevents leakage of the subsequently injected concrete grout. On the other hand, it can play a certain role in buffering and stress distribution when the bolts are tightened, ensuring the tightness and reliability of the connection.

[0021] Both corrugated plate 3 and corrugated plate 4 have grouting holes 14 at their center.

[0022] Bolt holes 22 and first through holes 15 are provided on the third baffle 8 and the fourth baffle 9, and several evenly spaced anchor bolt holes are provided on the first folding plate 10 and the second folding plate 11.

[0023] In this embodiment, the reinforcing ribs 5 are welded to the outer arc of the corrugated plate 3 and the corrugated plate 4. The function of the reinforcing ribs 5 is to further enhance the local stiffness and bending and compressive strength of the corrugated steel plate, prevent excessive local deformation of the corrugated plate under concrete pouring pressure or external load, and ensure the integrity and stability of the reinforcement layer. Several second through holes 16 are provided on the reinforcing ribs 5. Both the first through holes 15 and the second through holes 16 are used for concrete flow.

[0024] The sealing gasket 17 is disposed between the third baffle 8 and the fourth baffle 9 of the circumferentially adjacent corrugated plate assemblies.

[0025] The bottom of corrugated plate 3 and corrugated plate 4, which are located near the foot of the tunnel lining side wall, are placed above the side ditch, and a foot pad steel plate 18 is fixed on the side ditch. The ends of corrugated plate 3 and corrugated plate 4 are fixedly connected to the foot pad steel plate 18 by angle steel 19 and anchor bolts 20, and anchor rods 21 are also provided at the ends of corrugated plate 3 and corrugated plate 4.

[0026] Anchor bolt 21 is fixedly connected to corrugated plate 3 or corrugated plate 4. Anchor bolt 21 is a mortar anchor bolt 21 with a length of 4m and a spacing of 1.2m along the line direction.

[0027] High-strength concrete is poured between corrugated plate 3, corrugated plate 4 and tunnel lining 23 to fill the gap between tunnel lining 23 and corrugated plate, and the connection is fixed together by solidification and hardening, which improves the overall strength of the reinforcement layer.

[0028] The working principle of this utility model for a reinforcement device for repairing defects in existing railway tunnel linings is as follows: Corrugated plate assemblies are prefabricated in a factory and then quickly assembled on the construction site. A polyurethane waterproof coating is applied to the inner wall of the tunnel lining. The assembled corrugated plate assemblies are then anchored to the tunnel lining. The bottoms of corrugated plate one and corrugated plate two, located near the foot of the tunnel lining sidewall, are placed above the side ditch. A foot pad steel plate is fixed above the side ditch. The ends of corrugated plate one and corrugated plate two are fixedly connected to the foot pad steel plate by angle steel and anchor bolts. The ends of corrugated plate one and corrugated plate two are anchored to the tunnel lining by anchor rods. High-strength concrete is injected into the gap between the corrugated plate assembly and the tunnel lining through grouting holes. After the concrete hardens, it forms a high-strength composite reinforcement layer with the corrugated plates, improving the load-bearing capacity of the tunnel structure.

[0029] 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 reinforcing and strengthening device for the treatment of defects in existing railway tunnel linings, characterized in that it comprises: It includes a first corrugated plate assembly and a second corrugated plate assembly arranged longitudinally adjacent to it. The first corrugated plate assembly and the second corrugated plate assembly are staggered and fixed to the tunnel lining by chemical anchors. The first corrugated plate assembly is composed of corrugated plate one and corrugated plate two assembled in a circumferential direction, and the second corrugated plate assembly is composed of corrugated plate one assembled in a circumferential direction. The adjacent corrugated plates 1 and 2 are overlapped and fixed with bolts, and a sealing gasket is provided at each of their overlap joints. Both the first corrugated plate and the second corrugated plate are provided with reinforcing ribs on their arc-shaped outer sides. The first corrugated plate and the second corrugated plate are respectively provided with a first baffle and a second baffle on both sides along the longitudinal direction of the tunnel, and a third baffle and a fourth baffle are respectively provided on both sides along the circumferential direction of the tunnel. The first baffle and the second baffle are respectively provided with a first folding plate and a second folding plate that fold outwards, and the third baffle and the fourth baffle are respectively provided with a third folding plate that folds outwards and a fourth folding plate that folds inwards.

2. The reinforcing and consolidating device for remediation of defects in existing railway tunnel lining according to claim 1, characterized in that: Both the first corrugated plate and the second corrugated plate have grouting holes at their center.

3. The reinforcing and consolidating device for remediation of defects in existing railway tunnel lining according to claim 1, characterized in that: Both the third baffle and the fourth baffle are provided with bolt holes and first through holes, and the first folding plate and the second folding plate are provided with a number of evenly spaced anchor bolt holes.

4. The reinforcing and consolidating device for remediation of defects in existing railway tunnel lining according to claim 3, characterized in that: Each of the reinforcing ribs is provided with several second through holes, and both the first and second through holes are used for concrete flow.

5. The reinforcing and consolidating device for remediation of defects in existing railway tunnel lining according to claim 1, characterized in that: The sealing gasket is disposed between the third and fourth baffles of the circumferentially adjacent corrugated plate assemblies.

6. The reinforcement device for treating defects in the lining of existing railway tunnels according to claim 1, characterized in that: The bottoms of corrugated plate one and corrugated plate two, which are located near the foot of the tunnel lining side wall, are placed above the side ditch, and a foot pad steel plate is fixed on the side ditch. The ends of corrugated plate one and corrugated plate two are fixedly connected to the foot pad steel plate by angle steel and anchor bolts, and anchor rods are also provided at the ends of corrugated plate one and corrugated plate two.

7. The reinforcing and consolidating device for remediation of defects in existing railway tunnel lining according to claim 6, characterized in that: The anchor rod is fixedly connected to either corrugated plate one or corrugated plate two. The anchor rod is a mortar anchor rod with a length of 4m and a spacing of 1.2m along the line direction.

8. The reinforcing and consolidating device for remediation of defects in existing railway tunnel lining according to claim 7, characterized in that: High-strength concrete is poured between the corrugated plate one, the corrugated plate two and the tunnel lining.

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