A steel pipe segment assembly

Abstract

The utility model relates to a kind of steel pipe piece assembly, steel pipe piece assembly includes: steel pipe piece main body, with recessed mounting groove;Freezing pipe, the space bending of mounting groove is adapted, at least part freezing pipe is attached to the surface of mounting groove, the both ends of freezing pipe are out of mounting groove, for connecting freezing equipment;Freezing pipe guides freezing medium circulation to reduce the peripheral temperature of steel pipe piece main body.Steel pipe piece assembly is set by freezing pipe, so as to adjust the peripheral temperature of steel pipe piece main body and freeze seepage at gap, improve the safety of construction, effectively handle the leakage problem at tiny gap.Each steel pipe piece main body is set freezing pipe, can realize regional temperature regulation, greatly improve the flexibility of regional temperature control, and reduce energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of tunnel segment technology, and in particular to a steel segment assembly. Background Technology

[0002] According to national standards, a connecting passage must be built every 600 meters in subway tunnel construction for connecting two tunnels or for escape purposes. With the mature application and continuous promotion of mechanical connecting passage construction technology, shield tunneling is gradually replacing ice-freezing construction as the main construction technology.

[0003] During the construction of the tunnel connecting passage using the shield tunneling method, there will be gaps at the segments where the connecting passage intersects with the main tunnel. These gaps are one of the risk points in the construction of the connecting passage, and water-stopping treatment is required to ensure the safety of construction.

[0004] In related technologies, water sealing can be achieved by injecting water-sealing medium into the water-sealing grouting holes on the tunnel segments. However, due to factors such as the soil pressure or pressurized water pressure around the segments and underground voids, the water-sealing medium can only stop water and sand leakage over a large area around the segments. It is difficult to solve the leakage at the tiny gaps where the connecting passage intersects with the main tunnel. The leakage at the gaps affects the construction progress and poses technical problems that pose construction safety hazards, so improvements are needed. Utility Model Content

[0005] To overcome the problems existing in related technologies, this utility model provides a steel pipe segment assembly to solve the technical problem that the water-stopping medium is difficult to effectively stop water at gaps and that leakage occurs at tiny gaps at the intersection of the connecting passage and the main tunnel.

[0006] According to a first aspect of the present invention, a steel segment assembly is provided, the steel segment assembly comprising:

[0007] The main body of the steel pipe segment has a recessed mounting groove;

[0008] The freezing tube is adapted to the spatial curvature of the mounting groove, with at least a portion of the freezing tube in contact with the surface of the mounting groove, and both ends of the freezing tube protruding from the mounting groove for connecting to a freezing device;

[0009] The freezing pipe guides the flow of the freezing medium, reducing the ambient temperature of the steel tube body.

[0010] In one embodiment, one or more of the freezing tubes are installed in each of the mounting slots.

[0011] In one embodiment, the freezing tube is bent to fit the bottom of the mounting groove, and the two ends of the freezing tube are spaced apart at one end of the mounting groove.

[0012] In one embodiment, the freezing tube includes a bend, an input tube and an output tube located at both ends of the bend, and the bend includes at least one arc-shaped bend.

[0013] In one embodiment, the bend is configured as a round tube or a flat tube.

[0014] In one embodiment, the main body of the steel tube segment includes a base plate, multiple ribs, and side plates surrounding the base plate. The base plate and the side plates form an mounting groove. The ribs connect two opposite side plates and the base plate, and the freezing tube passes through the ribs.

[0015] In one embodiment, the steel tube body further includes an intermediate reinforcing plate, which extends along the arc of the base plate and divides the mounting groove, and the freezing tubes are distributed on one or both sides of the intermediate reinforcing plate.

[0016] In one embodiment, the mounting groove is filled with insulation material, which covers the refrigeration pipe.

[0017] In one embodiment, the steel segment assembly is configured as a ring-shaped continuous segment.

[0018] In one embodiment, a plurality of the steel tube segments are assembled into a ring, and each steel tube segment is provided with a freezing tube.

[0019] The technical solution provided by the embodiments of this utility model can include the following beneficial effects: By setting freezing pipes, the steel pipe segment assembly can regulate the surrounding temperature of the steel pipe segment body and freeze seepage in the gaps, thereby improving construction safety and effectively dealing with leakage problems in small gaps. Setting freezing pipes in each steel pipe segment body enables regional temperature regulation, greatly improving the flexibility of regional temperature control and reducing energy consumption. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0021] Figure 1 This is a schematic diagram illustrating the structure of multiple steel pipe segments assembled into a ring according to one embodiment.

[0022] Figure 2 This is a schematic diagram illustrating a ring-shaped steel tube segment assembly according to one embodiment.

[0023] Figure 3 yes Figure 1 The main view diagram in the image.

[0024] Figure 4 This is a structural schematic diagram of a steel segment assembly according to one embodiment.

[0025] Figure 5 yes Figure 4 A top-down view of the diagram.

[0026] In the figure, the main body of the steel pipe segment is 10; the bottom plate is 11; the side plate is 12; the rib plate is 13; the intermediate reinforcing plate is 14; the grouting hole is 15; the lifting arm is 16; the freezing pipe is 20; the bending part is 21; the input pipe is 22; and the output pipe is 23. Detailed Implementation

[0027] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" 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, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0028] like Figures 1 to 3 As shown, this utility model provides a steel segment assembly, which includes a steel segment body 10 and a refrigeration pipe 20. The steel segment body 10 is made of metal material and can be used at both ends of the connecting passage and in the area where it intersects with the main tunnel.

[0029] The main body 10 of the steel pipe segment is made of multiple steel plates welded into a pipe segment structure. The main body 10 of the steel pipe segment has functional hole structures such as grouting holes 15 and hoisting holes, as well as a lifting arm structure 16.

[0030] Optionally, the main body 10 of the steel tube segment 10 has an arc-shaped structure, with multiple steel tube segment assemblies assembled into a ring. Each steel tube segment assembly is equipped with a freezing pipe 20. For example, the number of main bodies 10 of the steel tube segment 10 can be two, five, etc. Multiple main bodies 10 of the steel tube segment 10 can be assembled to form a complete ring. The freezing pipe 20 of each main body 10 can perform independent regional freezing or collective cooling to achieve ring-shaped cooling, greatly improving the control flexibility of the cooling method.

[0031] Optionally, the steel tube segment assembly is configured as a ring-shaped, complete ring segment. The main body 10 of the steel tube segment has a circular structure, and the freezing pipes 20 are laid along the inner side of the main body 10, thereby enabling freezing control. The freezing pipes 20 can be a single pipe distributed along the steel tube segment assembly; alternatively, multiple freezing pipes 20 can be used, spliced ​​together to form a circular freezing area. Each freezing pipe 20 can perform independent regional freezing or collective cooling, achieving ring-shaped cooling and greatly improving the control flexibility of the cooling method.

[0032] The main body 10 of the steel tube segment is fixed as a whole by welding steel plates, and a recessed mounting groove is formed in the area enclosed by the bottom plate 11 and the side plate 12. The mounting groove is recessed from the main body 10 of the steel tube segment, which can form an internal space to accommodate the freezing tube 20.

[0033] The refrigeration tube 20 is a thin-walled tubular structure that adapts to the spatial curvature of the mounting groove, i.e., the refrigeration tube 20 adapts to the curvature variation of the mounting groove. At least a portion of the refrigeration tube 20 is in contact with the surface of the mounting groove to establish a heat transfer path. Both ends of the refrigeration tube 20 extend out of the mounting groove for connection to refrigeration equipment.

[0034] The refrigeration equipment delivers refrigerant to the refrigeration pipe 20, which guides the flow of the refrigerant. Through heat exchange, the ambient temperature of the steel pipe body 10 is reduced. When the ambient temperature reaches zero degrees Celsius or below, the liquid around gaps or joints can be frozen, solving leakage problems. The refrigerant can be Freon, hexafluorodichlorocyclobutane, or other working fluids that complete a thermodynamic cycle within the refrigeration unit.

[0035] In one embodiment, one or more freezing pipes 20 are installed in each mounting slot. For example, one freezing pipe 20 is installed in each mounting slot, and the freezing pipe 20 is bent and laid in the mounting slot to increase the freezing area.

[0036] Optionally, multiple refrigeration pipes 20 are installed in the mounting groove. Optionally, the multiple refrigeration pipes 20 are connected to form a passage to constitute multi-point refrigeration. Optionally, the multiple refrigeration pipes 20 are arranged in a multi-row distribution layout to constitute multi-row refrigeration, thereby improving the laying flexibility of the refrigeration pipes 20.

[0037] like Figures 3 to 5 As shown, in one embodiment, the freezing tube 20 is bent to fit against the bottom of the mounting groove, with its two ends spaced apart at one end of the mounting groove. The freezing tube 20 is at least partially bent to form a curved pipe structure. The freezing tube 20 includes a bend 21, which includes at least one arc-shaped bend. The bend 21 can be configured as an arc, S-shape, M-shape, or chord waveform, thereby enabling the delivery of the freezing medium through the same pipe. The bend 21 fits against the bottom of the mounting groove, forming a regional freezing area.

[0038] The two ends of the refrigeration pipe 20 are spaced apart at the same end of the mounting groove to facilitate the connection of the piping of the refrigeration equipment. The refrigeration pipe 20 includes an input pipe 22 and an output pipe 23 located at both ends of the bend 21. The input pipe 22 and the output pipe 23 bend from the bend 21 and protrude in a direction away from the bottom of the mounting groove; for example, the input pipe 22 and the output pipe 23 protrude radially along the steel pipe body 10.

[0039] The inlet pipe 22 and outlet pipe 23 protrude at intervals and are located at the same end of the steel tube assembly. The bending section 21 allows for flexible adjustment of the bending area and component space. The refrigeration tube 20 is bent into at least a U-shape to increase the contact area.

[0040] The refrigeration tube 20 is used for the flow of the refrigeration medium, and the bend 21 is configured as a round tube or a flat tube. Among them, the flat tube has a larger contact surface.

[0041] The main body 10 of the steel tube segment is welded and fixed into an integral structure. The main body 10 includes a base plate 11, multiple ribs 13, and side plates 12 surrounding the base plate 11. The base plate 11 and side plates 12 form an mounting groove. The ribs 13 connect two opposite side plates 12 and the base plate 11, and the freezing tube 20 passes through the ribs 13. The base plate 11 is an arc-shaped curved plate, and the side plates 12 are arranged around the edge of the base plate 11 to form a groove structure. The multiple ribs 13 are spaced apart in the mounting groove, and three sides of each rib 13 connect to two opposite side plates 12 and the base plate 11, respectively.

[0042] Optionally, a through hole is provided on the rib plate 13, through which the freezing hole passes. Optionally, a notch is provided on the side of the rib plate 13 facing the base plate 11, and the freezing tube 20 is limited at the notch.

[0043] Preferably, the freezing tube 20 is attached to the base plate 11 to increase the contact area.

[0044] Preferably, the freezing tubes 20 are symmetrically distributed on the base plate 11 to achieve symmetrical cooling. Furthermore, the freezing tubes 20 are located close to the side plates 12 on both sides to expand the freezing area of ​​the tube plate.

[0045] Preferably, the refrigeration tubes 20 are distributed on one side of the steel tube body 10 to form a unilateral localized cooling system. For example, the refrigeration tube 20 is configured as a single tube and is located close to the side plate 12 on one side.

[0046] like Figures 3 to 5 As shown, in one embodiment, the steel tube body 10 further includes an intermediate reinforcing plate 14, which extends along the arc of the base plate 11 and divides the mounting groove.

[0047] The intermediate reinforcing plate 14 is parallel to the longitudinal side plate 12. The intermediate reinforcing plate 14 strengthens the steel pipe segment body 10. Combined with the rib plate 13, the intermediate reinforcing plate 14, the longitudinal side plate 12 and the bottom plate 11 are fixedly connected, so that the steel pipe segment body 10 forms a grid frame-like reinforcing structure with high structural strength.

[0048] Optionally, if the freezing pipes 20 are distributed on one side of the intermediate reinforcing plate 14, they constitute a unilateral cooling of the steel pipe body 10.

[0049] Optionally, the refrigeration pipes 20 are distributed on both sides of the intermediate reinforcing plate 14, thus forming a double-sided cooling system for the steel tube sheet body 10. The bent portion 21 of the refrigeration pipe 20 penetrates the intermediate reinforcing plate 14.

[0050] In one embodiment, the mounting groove is filled with insulation material, which covers the refrigeration pipe 20. The insulation material fills and covers the refrigeration pipe 20 to concentrate heat exchange between the refrigeration pipe 20 and the surface of the steel pipe body 10, and to avoid the influence of air convection, thereby reducing energy consumption. Optionally, the insulation material can be insulation cotton or foam filler.

[0051] It should be understood that this invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this invention is limited only by the appended claims.

Claims

1. A steel pipe segment assembly, characterized by, The steel segment assembly includes: The main body of the steel pipe segment has a recessed mounting groove. The main body of the steel pipe segment includes a base plate, multiple ribs and side plates surrounding the base plate. The base plate and the side plates form the mounting groove. The ribs connect two opposite side plates and the base plate. A freezing tube is adapted to the spatial curvature of the mounting groove, at least a portion of the freezing tube is in contact with the surface of the mounting groove, the freezing tube passes through the rib plate, the freezing tube includes a bent portion, an input tube and an output tube respectively located at both ends of the bent portion, the bent portion includes at least one arc-shaped bend, and both ends of the freezing tube protrude from the mounting groove for connecting to freezing equipment; The mounting groove is filled with insulation material, which covers the refrigeration pipe. The freezing pipe guides the flow of the freezing medium, reducing the ambient temperature of the steel tube body.

2. The steel pipe segment assembly of claim 1, wherein, One or more of the aforementioned freezing tubes are installed in each of the mounting slots.

3. The steel pipe segment assembly of claim 1, wherein, The freezing tube is bent to fit the bottom of the mounting groove, and the two ends of the freezing tube are spaced apart at one end of the mounting groove.

4. The steel pipe segment assembly of claim 1, wherein, The bent portion is configured as a round tube or a flat tube.

5. The steel pipe segment assembly of claim 1, wherein, The main body of the steel tube segment also includes an intermediate reinforcing plate, which extends along the arc of the base plate and divides the mounting groove. The freezing tubes are distributed on one or both sides of the intermediate reinforcing plate.

6. The steel segment assembly according to any one of claims 1-5, characterized in that, The steel segment assembly is configured as a complete annular segment.

7. The steel segment assembly according to any one of claims 1-5, characterized in that, Multiple steel tube segments are assembled into a ring, and each steel tube segment is provided with a freezing tube.

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