A novel segment mold vibration beam structure

Abstract

This utility model discloses a novel vibrating beam structure for tunnel segment molds, comprising a base frame, bottom mold side plates, bottom mold end plates, bottom arc plates, and a vibrating beam. The base frame is welded to the bottom mold side plates; the bottom mold side plates are welded to the bottom mold end plates; the bottom mold side plates, bottom mold end plates, and bottom arc plates are welded to each other; the vibrating beam is welded to the bottom arc plates, but not directly to the bottom mold side plates. This novel vibrating beam structure for tunnel segment molds not only meets the vibration force requirements of the mold during tunnel segment casting, but also effectively avoids the problem of cracking of the bottom mold side plates caused by excessive vibration force.

Description

Technical Field

[0001] This utility model relates to the field of tunnel concrete segment prefabrication technology, and in particular to a novel segment mold vibration beam structure. Background Technology

[0002] Tunnel boring machine (TBM) segments are the main assembly components in TBM construction, forming the innermost barrier of the tunnel and bearing the responsibility of resisting soil pressure, groundwater pressure, and other special loads. TBM segment production typically uses high-strength, impermeable concrete to ensure reliable load-bearing capacity and waterproofing. Production mainly utilizes prefabricated segment molds, which are formed after the concrete is poured into a sealed container. The segment molds are made of mold steel and consist of a bottom mold, four side plates, and two cover plates—specialized precast concrete molds used for tunnel segment production. During segment pouring, a vibrator mounted on the bottom mold's vibrating beam provides compaction force, making the concrete more dense and expelling air from the concrete. Therefore, the structural design of the bottom mold's vibrating beam requires high precision; it must have sufficient strength to prevent cracking and a certain degree of toughness to ensure the vibration force is effectively transmitted to the concrete.

[0003] Currently, the vibration beam of the bottom mold in the market is usually welded to the inner arc surface of the bottom arc plate, and both ends are also welded to the large side plate of the bottom mold. Because the vibration beam is welded to the large side plate of the bottom mold, the large side plate of the bottom mold restricts the transmission of vibration force during vibration. However, if the vibration force is increased, there is a risk that the large side plate of the bottom mold will crack due to excessive stress. To address this, a new type of vibration beam structure for segment molds is proposed. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this application proposes a novel segment mold vibration beam structure to solve the problems existing in the prior art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A novel segment mold vibration beam structure includes a base frame, bottom mold side plates, bottom mold end plates, bottom arc plates, and a vibration beam; the base frame is welded to the bottom mold side plates; the bottom mold side plates are welded to the bottom mold end plates; the bottom mold side plates, bottom mold end plates, and bottom arc plates are welded to the bottom arc plates; the vibration beam is welded to the bottom arc plates and is not directly welded to the bottom mold side plates.

[0007] As a further technical solution of this utility model: the base frame is a frame structure, which is welded from steel profiles.

[0008] As a further technical solution of this utility model: the weld joint between the bottom mold side plate and the bottom mold end plate is provided with a bevel structure.

[0009] As a further technical solution of this utility model: the bottom arc plate is an arc-shaped steel plate, and its curvature is consistent with the curvature of the outer arc surface of the tube segment.

[0010] As a further technical solution of this utility model: the vibration beam is an I-shaped cross-section beam, which is welded from a web and a flange.

[0011] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0012] The vibration beam structure of this utility model for tunnel segment molds not only meets the requirements for mold vibration force during tunnel segment casting, but also effectively avoids the problem of cracking of the large side plate of the bottom mold caused by excessive vibration force. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a new type of segment mold vibration beam structure.

[0014] Figure 2 This is an exploded view of the vibration beam structure of a new type of segment mold.

[0015] Figure 3 This is a cross-sectional view of the vibration beam structure of a novel segment mold.

[0016] In the diagram: base frame-1, bottom formwork side plate-2, bottom formwork end plate-3, bottom arc plate-4, vibration beam-5. Detailed Implementation

[0017] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] Example 1, such as Figure 1-3 As shown, a novel segment mold vibration beam structure includes a base frame 1, a bottom mold side plate 2, a bottom mold end plate 3, a bottom arc plate 4, and a vibration beam 5.

[0019] In this embodiment of the utility model, the base frame 1 is welded to the large side plate 2 of the bottom mold, the bottom mold end plate 3 is welded to the side plate 2 of the bottom mold, the bottom arc plate 4 is welded to the side plate 2 and the bottom mold end plate 3, and the vibration beam 5 is welded to the bottom arc plate 4, but not directly to the side plate 2 of the bottom mold. This novel segment mold vibration beam structure can not only meet the requirements of the mold vibration force during segment casting, but also effectively avoid the problem of cracking of the bottom mold side plate caused by excessive vibration force.

[0020] 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 exemplary 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.

[0021] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment have been appropriately combined to form other embodiments that are easy for those skilled in the art to understand.

Claims

1. A novel segment mold vibration beam structure, comprising a base frame (1), bottom mold side plates (2), bottom mold end plates (3), bottom arc plates (4), and a vibration beam (5); characterized in that, The base frame (1) is welded to the bottom mold side plate (2); the bottom mold side plate (2) is welded to the bottom mold end plate (3); the bottom mold side plate (2), the bottom mold end plate (3), and the bottom arc plate (4) are welded together; the vibration beam (5) is welded to the bottom arc plate (4) and is not directly welded to the bottom mold side plate (2).

2. The novel segment mold vibration beam structure according to claim 1, characterized in that, The base frame (1) is a frame structure made of welded steel sections.

3. The novel segment mold vibration beam structure according to claim 1, characterized in that, The bottom mold side plate (2) and the bottom mold end plate (3) are provided with a bevel structure at the weld joint.

4. The novel segment mold vibration beam structure according to claim 1, characterized in that, The bottom arc plate (4) is an arc-shaped steel plate, and its curvature is consistent with the curvature of the outer arc surface of the tube segment.

5. The novel segment mold vibration beam structure according to claim 1, characterized in that, The vibrating beam (5) is an I-shaped cross-section beam, which is welded from a web and a flange.

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