Railway line tunnel supporting steel frame

Abstract

The utility model discloses and provides a railway line tunnel supporting steel frame which comprises a plurality of sets of steel frame bodies, two sets of limiting plates are fixedly installed on the two sides of the bottom ends of the plurality of sets of steel frame bodies, a reinforcing plate is movably installed between the two sets of limiting plates, and one end of the reinforcing plate is movably connected with an adjusting plate. Second connecting plates are fixedly installed on the two sides of the adjusting plate, a connecting steel plate is connected to one end of each second connecting plate, first connecting plates are fixedly installed at the two ends of each connecting steel plate, and the overall stability of the supporting structure is achieved through tight connection of the multiple sets of steel frame bodies and the connecting steel plates. The first connecting plates at the two ends of the connecting steel plate are fixed to the steel frame body through bolts, the connecting mode is simple and fast, and the long-term reliability of the supporting steel frame under the complex geological condition is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of support steel frame technology, specifically a support steel frame for railway tunnels. Background Technology

[0002] In railway tunnel construction, support steel frames play a crucial role, providing essential structural support and ensuring construction safety and long-term tunnel stability. Traditional support steel frame systems typically consist of multiple steel frame units connected by steel plates to achieve overall continuity and stability. However, this design primarily focuses on horizontal support, meaning that most steel frame units are arranged horizontally.

[0003] While existing support steel frames provide good horizontal support, several problems have emerged in practical applications. In particular, due to the lack of effective reinforcement mechanisms, these frames exhibit insufficient stability when facing adverse factors such as complex geological conditions, groundwater pressure, or construction errors. The absence of reinforcement mechanisms limits the adaptability of the support steel frames to various challenges and increases the risks associated with tunnel construction. Summary of the Invention

[0004] The purpose of this utility model is to provide a railway tunnel support steel frame to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a railway tunnel support steel frame, comprising multiple sets of steel frame bodies, two sets of limiting plates fixedly installed on both sides of the bottom end of each set of steel frame bodies, and a reinforcing plate movably installed between the two sets of limiting plates. An adjusting plate is movably connected to one end of the reinforcing plate, and a second connecting plate is fixedly installed on both sides of the adjusting plate. A connecting steel plate is connected to one end of the second connecting plate, and a first connecting plate is fixedly installed on both ends of the connecting steel plate.

[0006] Preferably, the second connecting plate and the first connecting plate are fixedly connected to the connecting steel plate and the main body of the steel frame by multiple sets of bolts. The bolt connection is not only simple and quick, but also can resist vibration and loosening by pre-tightening force, ensuring the long-term reliability of the support steel frame during tunnel construction.

[0007] Preferably, limit blocks are fixedly installed on both outer surfaces of the steel frame body. These limit blocks play a crucial role in positioning and support. They ensure that the connecting steel plates and other connecting components are in the correct positions, preventing structural instability caused by misalignment. In addition, the limit blocks can absorb and distribute part of the load, enhancing the overall structural durability.

[0008] Preferably, the reinforcing plate is movably connected to the two sets of limiting plates and adjusting plates via shafts. The shaft connection is not only flexible and reliable, but also easy to maintain, thus extending the service life of the support steel frame.

[0009] Preferably, each of the multiple sets of steel frame bodies has a mounting plate fixedly installed at its bottom end, and the outer surface of the mounting plate has mounting screw holes. The mounting plate provides a connection point with the tunnel floor or other fixed structures, so that the support steel frame can be firmly fixed in the required position.

[0010] Preferably, the top outer surface of the multiple sets of steel frame bodies is provided with multiple sets of reinforcing rods, which significantly enhance the structural strength of the top of the support steel frame. They can resist pressure and loads from the top or sidewalls of the tunnel, ensuring the stability of the support steel frame under complex geological conditions.

[0011] Preferably, the outer surface of the limiting block is wrapped with rubber. The rubber wrapping layer increases the friction between the limiting block and the connecting steel plate, preventing structural instability caused by vibration or loosening.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model achieves overall stability of the support structure through the tight connection of multiple sets of steel frame main bodies and connecting steel plates. The first connecting plates at both ends of the connecting steel plates are fixed to the steel frame main body with bolts. This connection method is not only simple and quick, but also ensures the long-term reliability of the support steel frame under complex geological conditions. In addition, the design of the reinforcing plate further enhances the vertical stability of the support steel frame. By rotating the reinforcing plate to tilt it into a triangular shape, the stability principle of a triangle is fully utilized, effectively improving the overall structural stability. This design not only improves construction efficiency, but also greatly reduces the safety risks that may be encountered during tunnel construction.

[0014] 2. This utility model allows for flexible adjustments based on the actual geological conditions and construction needs of the tunnel, thereby optimizing the structural layout and stability of the support steel frame. Simultaneously, the limiting blocks on both sides of the main body of the steel frame not only support the connecting steel plates but also increase the friction between the steel plates and the support steel plates through a rubber coating, further improving the stability of the connection. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the first three-dimensional structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention;

[0017] Figure 3 This is a schematic diagram of the exploded structure of this utility model;

[0018] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle;

[0019] Figure 5 This utility model Figure 3 Enlarged diagram of point B in the middle.

[0020] In the diagram: 1. Steel frame main body; 2. Connecting steel plate; 3. Reinforcing rod; 4. Limiting plate; 5. Reinforcing plate; 6. Adjusting plate; 7. Mounting plate; 211. First connecting plate; 511. Shaft; 611. Second connecting plate; 612. Bolt; 111. Limiting block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1-5 As shown, a railway tunnel support steel frame includes multiple sets of steel frame bodies 1. Two sets of limiting plates 4 are fixedly installed on both sides of the bottom end of the multiple sets of steel frame bodies 1, and a reinforcing plate 5 is movably installed between the two sets of limiting plates 4. An adjusting plate 6 is movably connected to one end of the reinforcing plate 5, and a second connecting plate 611 is fixedly installed on both sides of the adjusting plate 6. A connecting steel plate 2 is connected to one end of the second connecting plate 611, and a first connecting plate 211 is fixedly installed on both ends of the connecting steel plate 2.

[0023] The second connecting plate 611 and the first connecting plate 211 are respectively fixedly connected to the connecting steel plate 2 and the steel frame body 1 by multiple sets of bolts 612. The bolt 612 connection is not only simple and quick, but also can resist vibration and loosening through pre-tightening force, ensuring the long-term reliability of the support steel frame during tunnel construction. Limiting blocks 111 are fixedly installed on both outer surfaces of the steel frame body 1. The limiting blocks 111 play a key role in positioning and support. They can ensure that the connecting steel plate 2 and other connecting components are in the correct position, preventing structural instability caused by misalignment. In addition, the limiting blocks can also absorb and disperse part of the load, enhancing the durability of the overall structure.

[0024] The reinforcing plate 5 is movably connected to the two sets of limiting plates 4 and adjusting plates 6 via shafts 511. The shaft 511 connection is not only flexible and reliable but also easy to maintain, extending the service life of the support frame. Mounting plates 7 are fixedly installed at the bottom of each of the multiple steel frame main bodies 1, and the outer surface of the mounting plates 7 has mounting screw holes. The mounting plates 7 provide connection points to the tunnel floor or other fixed structures, allowing the support frame to be firmly fixed in the required position. Multiple sets of reinforcing rods 3 are installed on the top outer surface of the multiple steel frame main bodies 1. The installation of the reinforcing rods 3 significantly enhances the top structural strength of the support frame. They can resist pressure and loads from the tunnel top or sidewalls, ensuring the stability of the support frame under complex geological conditions.

[0025] The outer surface of the limiting block 111 is covered with rubber. The rubber coating increases the friction between the limiting block 111 and the connecting steel plate 2, preventing structural instability caused by vibration or loosening.

[0026] Working principle: First, multiple sets of steel frame bodies 1 serve as the main load-bearing components of the support structure, and are connected to each other through connecting steel plates 2. First connecting plates 211 are fixedly installed at both ends of the connecting steel plates 2. These first connecting plates 211 are tightly connected to corresponding components on the steel frame bodies 1 through multiple sets of bolts 612, ensuring that the connection between the steel frame bodies 1 is firm and reliable.

[0027] To further enhance the stability of the support steel frame, a reinforcing plate 5 and an adjusting plate 6 are introduced. The two ends of the reinforcing plate 5 are movably mounted between two sets of limiting plates 4, which are fixedly mounted on both sides of the bottom of the main steel frame 1. The reinforcing plate 5 is movably connected to the limiting plates 4 and the adjusting plate 6 via a shaft 511, allowing the reinforcing plate 5 to rotate within a certain range. When it is necessary to enhance the vertical stability of the support steel frame, the reinforcing plate 5 can be rotated to tilt into a triangular shape, thereby utilizing the stability principle of a triangle to improve the overall structural stability.

[0028] The design of the adjusting plate 6 provides additional flexibility. Second connecting plates 611 are fixedly installed on both sides of it, and these second connecting plates 611 are also connected to the connecting steel plate 2 by bolts 612. By rotating the adjusting plate 6, its connection angle with the main steel frame 1 can be adjusted, thereby further optimizing the structural layout and stability of the support steel frame. This design allows for flexible adjustments based on the actual geological conditions and construction requirements of the tunnel.

[0029] Furthermore, the limiting blocks 111 on both sides of the outer surface of the steel frame body 1 not only serve to support the connecting steel plate 2, but also increase the friction between them through the rubber coating layer on their outer surface, further improving the stability of the connection. At the same time, the mounting plates 7 at the bottom of the multiple sets of steel frame bodies 1 provide connection points to the tunnel ground or other fixed structures, and the support steel frame can be easily fixed in place through the mounting screw holes.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A steel frame for railway tunnel support, comprising multiple sets of steel frame bodies (1), characterized in that: Two sets of limiting plates (4) are fixedly installed on both sides of the bottom end of the multiple sets of steel frame main bodies (1), and a reinforcing plate (5) is movably installed between the two sets of limiting plates (4). One end of the reinforcing plate (5) is movably connected to an adjusting plate (6), and a second connecting plate (611) is fixedly installed on both sides of the adjusting plate (6). One end of the second connecting plate (611) is connected to a connecting steel plate (2), and a first connecting plate (211) is fixedly installed on both ends of the connecting steel plate (2).

2. The railway tunnel support steel frame according to claim 1, characterized in that: The second connecting plate (611) and the first connecting plate (211) are respectively fixedly connected to the connecting steel plate (2) and the steel frame body (1) by multiple sets of bolts (612).

3. The railway tunnel support steel frame according to claim 1, characterized in that: Limiting blocks (111) are fixedly installed on both outer surfaces of the steel frame body (1).

4. A railway tunnel support steel frame according to claim 3, characterized in that: The reinforcing plate (5) is movably connected to the two sets of limiting plates (4) and adjusting plate (6) via shaft (511).

5. A railway tunnel support steel frame according to claim 1, characterized in that: Each of the steel frame bodies (1) has a mounting plate (7) fixedly installed at its bottom end, and the outer surface of the mounting plate (7) has mounting screw holes.

6. A railway tunnel support steel frame according to claim 1, characterized in that: Multiple sets of reinforcing rods (3) are provided on the top outer surface of the multiple sets of steel frame main bodies (1).

7. A railway tunnel support steel frame according to claim 3, characterized in that: The outer surface of the limiting block (111) is covered with rubber.

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