Reinforcing steel bar stacking bracket for shield tunnel connection channel construction

Abstract

The utility model belongs to the field of building construction, and particularly relates to a reinforcing steel bar stacking bracket for shield tunnel connection channel construction, which comprises at least two placing devices, each placing device comprises a connecting plate and a limiting rod connected with the connecting plate; the connecting plate is connected with a bolt hole of a tunnel segment through a connecting nut. According to the reinforcing steel bar stacking bracket for shield tunnel connection channel construction, the connecting bolts of the tunnel segments serve as installation point positions, the connecting plates and the limiting plates are directly connected and then integrally installed on the tunnel segments, and then the reinforcing steel bar stacking bracket can serve as a temporary dragging and dropping bracket, so that the construction standardization of the shield tunnel connection channel is improved; and therefore, the construction efficiency is improved, and the influence on safety quality caused by disordered stacking of materials is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of building construction, specifically relating to a steel bar stacking bracket used in the construction of a shield tunnel connecting passage. Background Technology

[0002] In recent years, many cities across the country have accelerated the construction of urban rail transit networks to explore underground space, rationally alleviate traffic flow, and solve the current urban traffic congestion problem.

[0003] Subway tunnel connecting passage projects are small in scale but high in construction risk. Connecting passages link two tunnels running in opposite directions and are generally constructed only after the existing tunnels are completed. Subway tunnel connecting passage projects have tight deadlines, short construction periods, and numerous specialized construction procedures. The connecting passage project is a key control point for the entire tunnel project and a critical control period. It involves multiple specialized procedures such as drilling, freezing, excavation, shotcreting, reinforcement, waterproofing, formwork, concrete, and grouting, with many parallel and overlapping operations, placing high demands on construction organization and management.

[0004] As an integral part of subway construction, the standardized construction of subway connecting passages is a crucial link in improving the overall safety and civilized construction of tunnels. Connecting passage construction generally takes place after the tunnel is completed, which can easily impact the environment of the completed tunnel. For example, the disorganized storage of materials used in connecting passage construction can hinder material transportation, and construction materials can contaminate the completed tunnel. Therefore, implementing standardized construction methods for connecting passages is of great significance for creating civilized construction sites and improving the appearance quality of subway tunnels.

[0005] Reinforcing steel work is one of the most critical processes in the construction of connecting passages, and ensuring the supply of semi-finished reinforcing steel is an important guarantee for improving construction efficiency. Due to the limited above-ground construction space, in order to improve construction efficiency, the raw materials of reinforcing steel need to be processed in advance and transported to the construction site of the connecting passage for storage. This undoubtedly places higher demands on the rational planning of material storage areas at the connecting passages within the tunnel. Utility Model Content

[0006] The purpose of this utility model is to overcome the defects in the existing technology and provide a steel bar stacking bracket for the construction of shield tunnel connecting passages.

[0007] To achieve the above objectives, this utility model adopts the following technical solution:

[0008] A steel bar stacking bracket for construction of a connecting passage in a shield tunnel is characterized by comprising at least two placement devices; each placement device includes a connecting plate and a limiting rod connected to the connecting plate; the connecting plate is connected to the bolt holes of the tunnel segment via connecting nuts.

[0009] The bolt holes of adjacent tunnel segments of the installation device are on the same horizontal line.

[0010] The limiting rod is an iron rod; the connecting plate is an iron plate; the limiting rod and the connecting plate are fully welded together.

[0011] The height of the limiting rod is 0.8-1.5m.

[0012] The top of the limiting rod is covered with a sponge; the outside of the sponge is covered with colored tape.

[0013] The limiting rod is equipped with reflective strips.

[0014] The limiting rods are connected by a warning tape.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model relates to a steel reinforcement stacking bracket for shield tunnel connecting passage construction. It uses the bolt holes on the tunnel segments themselves as installation points, and directly connects the connecting plate and the limiting plate to the tunnel segments as a single, integrated installation bracket, thus improving construction efficiency and reducing the safety and quality impacts caused by haphazard material stacking. The stacking bracket of this application has a simple structure, readily available materials, and uses existing tunnel segments as installation points, making implementation convenient and easy to recycle after use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the steel bar stacking bracket used in the construction of the connecting passage of a shield tunnel according to this utility model;

[0018] Figure 2 This is a schematic diagram of the structure for placing steel bars in the steel bar stacking bracket used in the construction of a connecting passage in a shield tunnel. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and preferred embodiments.

[0020] Figure 1 -2 illustrates a rebar stacking bracket for shield tunnel connecting passage construction, comprising at least two placement devices; each placement device includes a connecting plate 3 and a limiting rod 4 connected to the connecting plate; the connecting plate 3 is connected to the bolt holes of the tunnel segment 1 via connecting nuts 5. The bolt hole positions of adjacent placement devices of the tunnel segments are at the same horizontal line. In use, the rebar is simply placed flat between the tunnel segment 1 and the limiting rod 4. Figure 2 (As shown).

[0021] The limiting rod 4 is an iron rod; the connecting plate 3 is an iron plate; the limiting rod and the connecting plate are fully welded together. The connecting plate 3 and the limiting rod (in this embodiment, □28 steel reinforcement) 4 are fully welded together at one end to form an integral component. Holes are drilled in the connecting plate 3, with the hole diameter slightly larger than the inner diameter of the connecting nut 5 of the tunnel segment, but smaller than the outer diameter of the connecting nut 5. Then, the connecting plate 3 and the limiting rod 4 are fully welded together, and the weld slag is removed.

[0022] The height of the limiting rod is 0.8-1.5m. The limiting rod 4 only needs to be about 1 meter long. Waste steel bars from the construction site can be used, improving waste utilization, reducing construction costs, and allowing for reuse.

[0023] Because lighting conditions may affect construction safety during tunnel construction, safety measures are implemented for the components to ensure the smooth and safe passage of vehicles used for the construction of the connecting passage and to improve the safety of construction personnel. The top of the limiting rod is covered with sponge to prevent scratches to construction personnel; colored tape is applied to the outside of the sponge cover. Reflective strips 9 are installed on the body of the limiting rod. The limiting rods 4 are connected by warning tape 10.

[0024] The implementation principle of this utility model is as follows: Bolt holes are located on both sides of the 45-degree angle at the bottom of the shield tunnel segment 1 within the length of the material stacking area, ensuring that the required bolt holes are on a horizontal line. The connecting nut 5 is loosened using a wrench that matches it, and the connecting plate 3 and one end of the limiting rod 4 are fully welded together to form an integral component, which is then inserted into the connecting nut 5. The connecting nut 5 is then tightened again with a wrench to the bolt hole. After the connecting passage construction is completed, this component can be removed, and the segment bolts can be tightened using an electric wrench to restore the tunnel to its original state, ensuring a clean and tidy site after completion.

[0025] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A support bracket for stacking reinforcing bars during the construction of a connecting passage in a shield tunnel, characterized in that, It includes at least two mounting devices; each mounting device includes a connecting plate and a limiting rod connected to the connecting plate; the connecting plate is connected to the bolt holes of the tunnel segment by connecting nuts.

2. The steel reinforcement stacking bracket for shield tunnel connecting passage construction according to claim 1, characterized in that, The bolt holes of adjacent tunnel segments for mounting the device are on the same horizontal line.

3. The steel reinforcement stacking bracket for shield tunnel connecting passage construction according to claim 1, characterized in that, The limiting rod is an iron rod; the connecting plate is an iron plate; the limiting rod and the connecting plate are fully welded together.

4. The steel reinforcement stacking bracket for shield tunnel connecting passage construction according to claim 1, characterized in that, The height of the limiting rod is 0.8-1.5m.

5. The steel reinforcement stacking bracket for shield tunnel connecting passage construction according to claim 1, characterized in that, The top of the limiting rod is covered with a sponge; the outside of the sponge is covered with colored tape.

6. The steel reinforcement stacking bracket for shield tunnel connecting passage construction according to claim 1, characterized in that, The limiting rod is equipped with reflective strips.

7. The steel reinforcement stacking bracket for shield tunnel connecting passage construction according to claim 1, characterized in that, The limiting rods are connected by a warning tape.

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