Tunnel internal reinforcing structure and reinforcing duct piece
By splicing the reinforced segments to form a reinforcement layer and filling it with epoxy resin or cement mortar, the problem of long construction time of existing tunnel reinforcement methods is solved, and efficient and rapid tunnel reinforcement is achieved.
Patent Information
- Application Number
- CN202421295589.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-06-07
AI Technical Summary
The existing internal reinforcement methods of tunnels such as glued steel plate reinforcement require on-site welding construction. The construction time is long and it is difficult to meet the reinforcement needs of subway and railway tunnels during operation.
The reinforcement layer is used to stitch the reinforcement tube. The gap between the reinforcement layer and the inner wall of the tunnel through the epoxy resin or cement mortar to form a fill layer, and the expansion bolt or chemical bolt fixed reinforcement tube is used.
The reinforcement effect is improved, the construction process is simplified, the construction time is reduced, and it is suitable for tunnel reinforcement with a stenosis and limited operating time.
Smart Images
Figure CN222391402U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a tunnel internal reinforcement structure and a reinforcement pipe segment, which are applicable to the field of tunnel operation and maintenance. Background Art
[0002] With the increase of tunnel operation years and the influence of various adverse factors, some tunnels have experienced lining leakage, cracking, deformation and other defects during use, which have affected the operational safety and service life of the tunnel to varying degrees and require reinforcement and maintenance.
[0003] Steel plate reinforcement is a commonly used method for tunnel internal reinforcement, but it requires on-site welding construction, which takes a long time to construct. Internal reinforcement in operating tunnels is limited by line closure time and the use of heavy machinery. Internal reinforcement of subway and railway tunnels in operation often requires manual reinforcement in a narrow tunnel hole in a short period of time, and steel plate reinforcement is difficult to meet the requirements. Utility Model Content
[0004] The technical problem to be solved by the utility model is: in view of the above-mentioned existing problems, a tunnel internal reinforcement structure and a reinforcement pipe segment are provided.
[0005] The technical solution adopted by the utility model is: a tunnel internal reinforcement structure, characterized in that it includes:
[0006] A reinforcement layer is arranged close to the inner wall of the tunnel, and the reinforcement layer includes a plurality of interconnected reinforcement segments;
[0007] A filling layer, which is formed by filling the gap between the reinforcement layer and the inner wall of the tunnel with epoxy resin or cement mortar;
[0008] The reinforced pipe segment has at least one pipe segment body, which has a polygonal bottom plate and a plurality of side walls arranged one by one corresponding to each edge of the polygonal bottom plate. The side walls are fixed at corresponding edges of the polygonal bottom plate, and adjacent side walls are connected to each other.
[0009] The segment body also has an inner flange, which is a polygonal structure matched with the polygonal bottom plate. The center of the inner flange has a through hole, and each edge of the inner flange is connected to the inner side surface of the corresponding side wall.
[0010] Bolt holes are provided on the side walls; the reinforced pipe segments are connected to adjacent reinforced pipe segments via bolts inserted into the bolt holes.
[0011] The polygonal bottom plate is provided with a filling hole, through which the gap between the reinforcement layer and the inner wall of the tunnel can be filled.
[0012] The reinforced pipe segments are fixed to the inner wall of the tunnel via expansion bolts or chemical bolts.
[0013] The reinforced pipe segment may be filled with concrete or not. Generally, it is not necessary to fill it with concrete, and the construction period of filling it with concrete is long. It is only filled when there is a special need.
[0014] The polygonal bottom plate is a regular hexagon.
[0015] A reinforced pipe segment, characterized in that it has at least one pipe segment body, the pipe segment body has a polygonal bottom plate, and a plurality of side walls arranged one-to-one corresponding to each edge of the polygonal bottom plate, the side walls are fixed at the corresponding edges of the polygonal bottom plate, and adjacent side walls are connected to each other.
[0016] The segment body also has an inner flange, which is a polygonal structure matched with the polygonal bottom plate. The center of the inner flange has a through hole, and each edge of the inner flange is connected to the inner side surface of the corresponding side wall.
[0017] The side wall is provided with bolt holes; the polygonal bottom plate is provided with filling holes.
[0018] The beneficial effects of the utility model are as follows: the utility model forms a reinforcement layer by splicing reinforced pipe segments, the reinforced pipe segments have high rigidity, and the reinforced pipe segments are tightly fitted to the tunnel by filling fillers such as epoxy resin or cement mortar, thereby significantly improving the reinforcement effect.
[0019] The utility model reinforced pipe segment is composed of a polygonal bottom plate, a side wall, etc., and has a compact and light structure. The lightweight tunnel internal reinforcement pipe segment can efficiently complete the tunnel reinforcement construction mainly by manual labor in a tunnel hole with a narrow site and limited working time. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 , 2 It is a three-dimensional diagram of the reinforced pipe segment in the embodiment.
[0021] Figure 3 Schematic diagram of the structure of the reinforcement layer in the embodiment.
[0022] Figure 4 2 is a cross-sectional view of the reinforcement structure in the embodiment.
[0023] Figure 5 It is a cross-sectional view of the reinforcement structure in the embodiment.
[0024] 1. Strengthen the pipe segments;
[0025] 1-1, polygonal bottom plate; 1-2, side wall; 1-3, inner flange; 1-4, bolt hole; 1-5, filling hole;
[0026] 2. Bolts;
[0027] 3. Fixed facilities;
[0028] 4. Filling layer;
[0029] 5. Cast-in-place reinforced concrete. DETAILED DESCRIPTION
[0030] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.
[0031] It should be clear that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.
[0032] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.
[0033] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.
[0034] It should be noted that the directional words such as "upper", "lower", "left", and "right" described in the embodiments of the present application are described at the angles shown in the accompanying drawings and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element.
[0035] This embodiment provides a tunnel internal reinforcement structure, including a reinforcement layer and a filling layer, wherein the reinforcement layer is arranged close to the inner wall of the tunnel, and the gap between the reinforcement layer and the inner wall of the tunnel is filled with fillers such as epoxy resin or cement mortar to form the filling layer.
[0036] In this example, the reinforcement layer includes an arch structure formed by splicing a number of reinforced segments and close to the inner wall of the tunnel. The arch foot of the arch structure and the tunnel invert are connected by cast-in-place reinforced concrete.
[0037] In this embodiment, the reinforced pipe segment has three interconnected pipe segment bodies. The pipe segment body is a hollow thin-walled regular hexagonal structure, with a regular hexagonal polygonal bottom plate, and 6 side walls corresponding to each edge of the polygonal bottom plate. The side walls are fixed at the corresponding edges of the polygonal bottom plate, and adjacent side walls are interconnected.
[0038] In this example, the polygonal bottom plates of the three segments on the reinforced segment are connected to each other, and the three polygonal bottom plates form a whole. The reinforced segment can be made of ductile iron or steel, and can be integrally formed or welded. The reinforced segment can be treated with anti-corrosion, anti-rust and fire-resistant measures as needed.
[0039] In this embodiment, the reinforcement layer is mainly formed by splicing reinforcement segments. The reinforcement segments include a polygonal bottom plate and side walls. The structure is simple and light, the rigidity is high, and the installation is convenient and quick, which helps to quickly complete the tunnel reinforcement construction.
[0040] In some specific embodiments, the segment body also has an inner flange with a through hole in the center. The inner flange has a regular hexagonal outer contour and a regular hexagonal inner contour. Each outer side of the inner flange corresponds one-to-one with six side walls and is connected to the inner side surface of the corresponding side wall facing the center of the segment body.
[0041] In this embodiment, the structure of the segment body is strengthened by the inner flange, thereby enhancing the stability of the overall structure of the reinforcement layer.
[0042] In some specific embodiments, bolt holes are opened on the side walls, and the reinforced segments are connected to adjacent reinforced segments via bolts inserted into the bolt holes.
[0043] In some specific embodiments, filling holes are opened on the polygonal bottom plate, and fillers such as epoxy resin or cement mortar can be injected through the filling holes to fill the gap between the reinforced pipe segment and the tunnel to form a filling layer.
[0044] In some specific embodiments, fixing facilities may be provided on the bottom plate of the reinforced segment to strengthen its connection with the tunnel, and the fixing facilities may be expansion bolts or chemical bolts.
[0045] In some specific embodiments, the space enclosed by the inner side wall and the bottom plate of the reinforced segment can be filled with concrete as needed to increase the structural strength of the reinforcement layer.
[0046] In some specific embodiments, a construction method for a tunnel internal reinforcement structure is also provided, which specifically includes the following steps:
[0047] S1. Carry out cross-sectional measurement and disease assessment on the tunnel to be reinforced to determine the size of the reinforced segments and the areas to be reinforced.
[0048] S2. Process and manufacture reinforced pipe segments according to the determined dimensions, and take anti-corrosion, anti-rust and fire-resistant treatment measures as needed.
[0049] S3. Position and place the reinforcement segments layer by layer, and connect the segments with bolts until an arch structure is formed that fits closely to the inner wall of the tunnel.
[0050] In this case, fixing facilities are added to the bottom plate of the reinforced segment to prevent the reinforced segment from falling off during the reinforcement process, thereby ensuring construction safety during the reinforcement process. The fixing facilities are expansion bolts or chemical bolts.
[0051] S4. Use cast-in-place reinforced concrete to connect the arch foot of the arch structure and the tunnel invert.
[0052] S5. Fillers such as epoxy resin or cement mortar are injected through the filling holes on the bottom plate of the reinforced segment to fill the gap between the reinforced segment and the tunnel.
[0053] S6. Concrete can be filled inside the reinforced segments as needed.
[0054] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A tunnel internal reinforcement structure, characterized in that: include: A reinforcement layer is arranged close to the inner wall of the tunnel, and the reinforcement layer includes a plurality of interconnected reinforcement segments; A filling layer, which is formed by filling the gap between the reinforcement layer and the inner wall of the tunnel with epoxy resin or cement mortar; The reinforced pipe segment has at least one pipe segment body, which has a polygonal bottom plate and a plurality of side walls arranged one by one corresponding to each edge of the polygonal bottom plate. The side walls are fixed at corresponding edges of the polygonal bottom plate, and adjacent side walls are connected to each other.
2. The tunnel internal reinforcement structure according to claim 1, characterized in that: The segment body also has an inner flange, which is a polygonal structure matched with the polygonal bottom plate. The center of the inner flange has a through hole, and each edge of the inner flange is connected to the inner side surface of the corresponding side wall.
3. The tunnel internal reinforcement structure according to claim 1, characterized in that: Bolt holes are provided on the side walls; the reinforced pipe segments are connected to adjacent reinforced pipe segments via bolts inserted into the bolt holes.
4. The tunnel internal reinforcement structure according to claim 1, characterized in that: The polygonal bottom plate is provided with a filling hole, through which the gap between the reinforcement layer and the inner wall of the tunnel can be filled.
5. The tunnel internal reinforcement structure according to claim 1, characterized in that: The reinforced pipe segments are fixed to the inner wall of the tunnel via expansion bolts or chemical bolts.
6. The tunnel internal reinforcement structure according to claim 1, characterized in that: The reinforced pipe segment is filled with concrete.
7. The tunnel internal reinforcement structure according to claim 1, characterized in that: The polygonal bottom plate is a regular hexagon.
8. A reinforced segment, characterized in that: The invention has at least one tube segment body, which has a polygonal bottom plate and a plurality of side walls arranged one by one corresponding to each edge of the polygonal bottom plate. The side walls are fixed at the corresponding edges of the polygonal bottom plate, and adjacent side walls are connected to each other.
9. The reinforced segment according to claim 8, characterized in that: The segment body also has an inner flange, which is a polygonal structure matched with the polygonal bottom plate. The center of the inner flange has a through hole, and each edge of the inner flange is connected to the inner side surface of the corresponding side wall.
10. The reinforced segment according to claim 8, characterized in that: The side wall is provided with bolt holes; the polygonal bottom plate is provided with filling holes.