Collision protection device for finished shield segment

Abstract

The utility model discloses a finished shield segment bumping protection device which comprises a bottom plate, a fixing column, a protection base plate and a fixing top plate, the upper surface of the bottom plate is provided with protruding supporting parts, the supporting parts are distributed in an arc shape, the top of the bottom plate is provided with the detachably connected fixing top plate, and the fixing column is arranged between the bottom plate and the fixing top plate. Fixing corners are arranged at the edges of the bottom plate and the fixing top plate, mounting holes are formed in the tops of the fixing corners, threaded sections are arranged at the two ends of the fixing columns respectively, the threaded sections at the lower ends of the fixing columns are connected with the mounting holes, and the threaded sections at the upper ends of the fixing columns penetrate through the fixing top plate and are provided with locking nuts in threaded connection; a plurality of protective base plates are arranged between the bottom plate and the fixed top plate. The protection device is composed of the bottom plate, the fixing columns, the protection base plate and the fixing top plate, the convenience of shield segment transportation is improved, meanwhile, the shield segment can be fully protected, the surface of the shield segment is prevented from being collided in the transportation process, and the transportation safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of shield tunnel segment production technology, specifically to a collision protection device for finished shield tunnel segments. Background Technology

[0002] The shield tunneling method has become the main construction method for underground tunnels in China and has been widely used in subway construction. Currently, the construction limit for subway tunnels in China is a diameter of 5200m. For tunnels with deep soft soil layers, such as those undergoing external activities like excavation, loading, and unloading around the operating tunnel, the shield tunnel segments are the main assembly components in shield tunneling. They are the innermost barrier of the tunnel, bearing the responsibility of resisting soil pressure, groundwater pressure, and some special loads. The shield tunnel segments are the permanent lining structure of shield tunnels, and their quality directly affects the overall quality and safety of the tunnel, as well as its waterproofing and durability.

[0003] Currently, after the finished shield tunnel segments are produced, they often need to be transported to the shield construction site for installation. Various unstable factors exist during transportation, and the finished shield tunnel segments lack dedicated protective devices, making them susceptible to impact damage, affecting their structural stability, and causing significant difficulties in transportation. Therefore, a collision protection device for finished shield tunnel segments is proposed. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a collision protection device for finished shield tunnel segments. This device solves the problem that the lack of dedicated protective equipment during the transportation of shield tunnel segments easily leads to collision damage. The device utilizes a base plate, fixed columns, protective pads, and a fixed top plate to form a protective structure, facilitating the stacking of multiple shield tunnel segments, improving the convenience of transportation, and simultaneously providing ample protection to the shield tunnel segments, preventing collisions to the surface of the segments during transport and improving transportation safety.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a protective device for the impact of finished tunnel segments, comprising a base plate, a fixed column, protective pads, and a fixed top plate. The upper surface of the base plate is provided with a raised support portion, which is distributed in an arc shape. The top of the base plate is provided with a detachably connected fixed top plate. A fixed column is provided between the base plate and the fixed top plate. Fixed corners are provided at the edges of both the base plate and the fixed top plate. Mounting holes are provided at the top of the fixed corners. Threaded sections are provided at both ends of the fixed column. The threaded section at the lower end of the fixed column is connected to the mounting hole. The threaded section at the upper end of the fixed column penetrates the fixed top plate and is provided with a threaded locking nut. Several protective pads are provided between the base plate and the fixed top plate.

[0008] As an improvement to the above technical solution, the upper surface of the protective pad is provided with a raised arc-shaped groove, and the lower surface of the protective pad is provided with a recessed fastening groove.

[0009] As an improvement to the above technical solution, a snap-fit ​​groove is provided at the edge of the protective pad, and the snap-fit ​​groove is respectively engaged and connected with the corresponding fixing post.

[0010] As an improvement to the above technical solution, fixing holes are provided on the adjacent two side walls of the fixing angle, and an inner liner is embedded in the fixing hole.

[0011] As an improvement to the above technical solution, the surface of the fixed column is provided with a number of pads, which are sleeved and connected to the surface of the column and located between the protective pads.

[0012] (III) Beneficial Effects

[0013] This utility model provides a collision protection device for finished tunnel boring machine segments. It has the following beneficial effects:

[0014] 1. This utility model utilizes a base plate, fixed column, protective pad, and fixed top plate to form a protective device, which facilitates the stacking of multiple shield tunnel segments, improves the convenience of transporting shield tunnel segments, and at the same time provides sufficient protection for the shield tunnel segments, avoiding collisions to the surface of the shield tunnel segments during transportation and improving transportation safety.

[0015] 2. This utility model has fixed corners with fixing holes at the edges of the bottom plate and the fixed top plate, which facilitates fixing with ropes and other tools during transportation and improves the stability of transportation. The upper and lower surfaces of the protective pad are respectively provided with arc-shaped pad grooves and fastening grooves to improve the stability of the shield tunnel segments. Attached Figure Description

[0016] Figure 1 This is a side view of the structural schematic diagram of the finished shield tunnel segment collision protection device of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the base plate of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the protective pad of this utility model.

[0019] In the diagram: base plate-1, fixing post-2, protective pad plate-3, fixing top plate-4, support part-5, fixing corner-6, mounting hole-7, threaded section-8, locking nut-9, arc-shaped washer groove-10, snap-fit ​​groove-11, snap-fit ​​groove-12, fixing hole-13, inner liner ring-14, pad block-15. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-3 This utility model provides a technical solution: a protective device for the impact of finished tunnel segment collisions, including a base plate 1, a fixed column 2, a protective pad 3, and a fixed top plate 4. The upper surface of the base plate 1 is provided with a protruding support part 5, which is distributed in an arc shape. The top of the base plate 1 is provided with a detachably connected fixed top plate 4. A fixed column 2 is provided between the base plate 1 and the fixed top plate 4. Fixed corners 6 are provided at the edges of the base plate 1 and the fixed top plate 4. The top of the fixed corner 6 is provided with an installation hole 7. Threaded sections 8 are provided at both ends of the fixed column 2. The threaded section 8 at the lower end of the fixed column 2 is connected to the installation hole 7. The threaded section 8 at the upper end of the fixed column 2 penetrates the fixed top plate 4 and is provided with a threaded locking nut 9. A plurality of protective pads 3 are provided between the base plate 1 and the fixed top plate 4.

[0022] Further improvements include a raised arc-shaped groove 10 on the upper surface of the protective pad 3 and a recessed fastening groove 11 on the lower surface of the protective pad 3. By providing an arc-shaped groove 10 and a fastening groove 11 on the upper and lower surfaces of the protective pad 3 respectively, the stability of the fastening connection between the protective pad 3 and the shield tunnel segment is improved, which facilitates the protection of the shield tunnel segment.

[0023] Further improvements include a snap-fit ​​groove 12 at the edge of the protective pad 3, which is engaged with the corresponding fixing post 2. By providing the snap-fit ​​groove 12 at the edge of the protective pad 3, it is convenient to effectively limit and fix the protective pad 3 during installation, preventing the protective pad 3 from shifting during transportation after multiple layers are stacked, and improving the safety of shield tunnel segment protection.

[0024] Further improvements include fixing holes 13 on the adjacent side walls of the fixing angle 6, with an inner liner 14 embedded inside the fixing holes 13. By providing fixing holes 13 on the side walls of the fixing angle 6, it is convenient to use ropes or other tools for fixing during transportation. The inner liner 14 embedded inside the fixing holes 13 helps to avoid damage to ropes or other tools, thereby improving the safety and stability of shield tunnel segment transportation.

[0025] Specifically, the surface of the fixed column 2 is provided with a plurality of pads 15. The pads 15 are sleeved and connected to the surface of the column and located between the protective pads 3. By providing pads 15 on the surface of the fixed column 2, it is convenient to support the edge of the protective pad 3 and avoid the protective pad 3 from shifting or misaligning when it is squeezed.

[0026] In use, the finished shield tunnel segment is fastened to the support part 5 on the surface of the base plate 1, and then a protective pad 3 is placed on its surface. The position of the protective pad 3 is adjusted so that the fastening groove 11 on the lower surface of the protective pad 3 fully covers the upper surface of the shield tunnel segment. At the same time, the snap-fit ​​groove 12 on the side wall of the protective pad 3 is fastened to the fixing post 2 to facilitate the fixing of the shield tunnel segment. This operation is repeated to place the shield tunnel segment and the protective pad 3. Finally, the fixing top plate 4 is fastened to the top and connected to the fixing post 2 using the locking nut 9 to complete the fixing of the protective device. During transportation, the entire protective device is placed on a vehicle and connected to the fixing hole 13 on the side wall of the fixing corner 6 using ropes or other tools to improve the stability during transportation.

[0027] This invention addresses the problem that finished shield tunnel segments often need to be transported to the shield construction site for installation after production. During transportation, various unstable factors exist, and the finished shield tunnel segments lack dedicated protective devices, making them susceptible to impact damage and affecting structural stability, thus posing significant transportation difficulties. This invention utilizes a protective device composed of a base plate 1, fixed columns 2, protective pads 3, and a fixed top plate 4. This facilitates the stacking of multiple shield tunnel segments, improving transportation convenience while providing ample protection to prevent surface damage during transport, thus enhancing safety. Fixed corners 6 with fixing holes 13 are provided at the edges of the base plate 1 and the fixed top plate 4, allowing for easy securing with ropes and other tools during transport, improving stability. Arc-shaped grooves 10 and fastening grooves 11 are provided on the upper and lower surfaces of the protective pads 3, respectively, enhancing the stability of the support for the shield tunnel segments.

[0028] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A protective device for impact protection of finished tunnel segment, comprising a base plate (1), a fixed column (2), a protective pad (3), and a fixed top plate (4), characterized in that: The upper surface of the base plate (1) is provided with a raised support part (5), which is distributed in an arc shape. The top of the base plate (1) is provided with a detachable fixed top plate (4). A fixed post (2) is provided between the base plate (1) and the fixed top plate (4). Fixed corners (6) are provided at the edges of the base plate (1) and the fixed top plate (4). A mounting hole (7) is provided at the top of the fixed corner (6). Threaded sections (8) are provided at both ends of the fixed post (2). The threaded section (8) at the lower end of the fixed post (2) is connected to the mounting hole (7). The threaded section (8) at the upper end of the fixed post (2) penetrates the fixed top plate (4) and is provided with a threaded locking nut (9). Several protective pads (3) are provided between the base plate (1) and the fixed top plate (4).

2. The impact protection device for finished tunnel segment as described in claim 1, characterized in that: The upper surface of the protective pad (3) is provided with a raised arc-shaped groove (10), and the lower surface of the protective pad (3) is provided with a recessed fastening groove (11).

3. The impact protection device for finished tunnel segments according to claim 2, characterized in that: The edge of the protective pad (3) is provided with a buckle groove (12), and the buckle groove (12) is respectively fastened to the corresponding fixing post (2).

4. The impact protection device for finished tunnel segment as described in claim 1, characterized in that: Fixing holes (13) are provided on the adjacent two side walls of the fixing angle (6), and an inner liner (14) is embedded in the fixing hole (13).

5. The impact protection device for finished tunnel segment as described in claim 1, characterized in that: The surface of the fixed column (2) is provided with several pads (15), which are sleeved on the surface of the column and located between the protective pads (3).

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