Tunneling device

By designing a track-crossing device and using track-crossing pipes with specific angles and bending radii and dedicated cable troughs, the problems of cable stability and space utilization in tunnel track-crossing devices were solved, achieving stability and safety of power transmission and signal communication within the tunnel.

CN224592184UActive Publication Date: 2026-08-04CHINA RAILWAY 19TH BUREAU GRP EAST CHINA ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA RAILWAY 19TH BUREAU GRP EAST CHINA ENG CO LTD
Filing Date
2025-07-30
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Existing tunnel track crossing devices suffer from problems such as unreasonable space utilization, frequent facility interference, single connection angle, poor cable stability, and susceptibility to damage during cable laying, which affect the quality and safety of tunnel operation.

Method used

Design a tunnel track crossing device that uses multiple track crossing pipes connected to the side trench cable trough at an angle of 30 to 60 degrees, with a bending radius greater than 1.5 meters. Combined with dedicated cable troughs for communication, power, and signal, using HOPE pipes, set up track crossing cable troughs and dedicated channels to optimize the wiring path and enhance stability and protection.

Benefits of technology

It optimizes the use of space inside the tunnel, reduces construction costs, extends the service life of cables, ensures the stability of power transmission and signal communication, reduces maintenance costs, and ensures the safe operation of the tunnel.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a tunnel rail passing device belongs to the field of tunnel engineering, include: side ditch cable slot, the side ditch of both sides of tunnel is all provided with side ditch cable slot in side; rail passing pipe, rail passing pipe has a plurality of, every rail passing pipe's one end is inserted on the side ditch cable slot of one side of tunnel, every rail passing pipe's other end is inserted on the side ditch cable slot of the other side of tunnel, the angle between every rail passing pipe and side ditch cable slot is 30 to 60 degrees, every rail passing pipe's minimum bending radius is greater than 1.5 meters. Purpose is at solving the tunnel rail passing device structure in prior art makes cable in the rail passing process appear excessive bending, causes cable insulation layer to be damaged, greatly shortens cable service life etc. The technical effect reached is: realize cable in the rail passing process and keep good state, avoid because excessive bending damage insulation layer, not only prolongs cable's service life, also guaranteed the stability of electric power transmission and signal communication, reduces the later maintenance cost.
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Description

Technical Field

[0001] This utility model relates to the field of tunnel engineering technology, and in particular to a tunnel track crossing device. Background Technology

[0002] During the construction and upgrading of tunnel infrastructure, the tunnel track crossing device is a key component that ensures the smooth passage of various cables through the tunnel. Its design rationality and performance directly affect the overall operational quality of the tunnel.

[0003] Current tunnel track crossing devices generally suffer from numerous problems. In terms of space utilization, traditional track crossing pipe laying methods lack scientific planning, not only occupying a significant amount of limited tunnel space but also easily interfering with other systems such as drainage and ventilation. This leads to frequent layout adjustments during construction, greatly increasing both time and economic costs. Regarding connection design, the connection angle between the track crossing pipe and the side ditch cable tray is simplistic, making it difficult to adapt to diverse cable laying requirements. When laying cables of different specifications and uses, construction personnel often need to spend considerable time on-site modifications, and the stability of the installed cables is poor. During long-term tunnel operation, cable loosening and detachment frequently occur due to factors such as train vibration. Furthermore, unscientific connection methods can easily cause excessive bending of cables during track crossing, damaging the cable insulation layer, greatly shortening cable lifespan, increasing maintenance frequency, and potentially even causing tunnel power and communication failures, seriously threatening the safe operation of the tunnel. Utility Model Content

[0004] This utility model provides a tunnel track-crossing device to solve the defects of existing tunnel track-crossing devices, such as excessive bending of cables during track crossing, resulting in damage to the cable insulation layer and greatly shortening the cable's service life. The device enables cables to maintain a good condition during track crossing, avoiding damage to the insulation layer due to excessive bending. This not only extends the cable's service life but also ensures the stability of power transmission and signal communication, reducing subsequent maintenance costs.

[0005] This utility model provides a tunnel track crossing device, comprising:

[0006] Side trench cable troughs are installed on the sides of the side trenches on both sides of the tunnel.

[0007] There are multiple rail-passing pipes. One end of each rail-passing pipe is inserted into a cable trough in the side trench on one side of the tunnel, and the other end of each rail-passing pipe is inserted into a cable trough in the side trench on the other side of the tunnel.

[0008] The angle between each rail pipe and the side cable trough is between 30 and 60 degrees, and the minimum bending radius of each rail pipe is greater than 1.5 meters.

[0009] In addition, the tunnel track crossing device according to this utility model may also have the following additional technical features:

[0010] In some embodiments of this utility model, the side trench cable trough includes:

[0011] Communication cable troughs and power cable troughs are installed on the first side of the side trench on each side of the tunnel.

[0012] Power cable troughs are installed on the second side of the side trench on each side of the tunnel.

[0013] One end of the rail pipe is connected to a communication cable trough or power cable trough on one of the side ditches, and the other end of the rail pipe is connected to a communication cable trough or power cable trough on the other side ditches.

[0014] In some embodiments of this utility model, it further includes:

[0015] The cable trough is connected at one end to the cable trough in the side ditch on one side of the tunnel and at the other end to the cable trough in the side ditch on the other side of the tunnel. The cable pipe is installed on the cable trough.

[0016] In some embodiments of this utility model, the rail-passing pipe includes:

[0017] There is at least one communication cable crossing line, and at least one communication cable crossing line is installed on the cable crossing trough. The first end of each communication cable crossing line is inserted into the communication cable trough on one side of the tunnel, and the second end of each communication cable crossing line is inserted into the communication cable trough on the other side of the tunnel.

[0018] In some embodiments of this utility model, the rail-passing pipe further includes:

[0019] There is at least one power cable crossing line, and at least one power cable crossing line is installed on the cable trough. The second end of each power cable crossing line is inserted into the power cable trough on the other side of the tunnel.

[0020] In some embodiments of this utility model, the rail-passing pipe further includes:

[0021] There is at least one overhead contact line, and at least one overhead contact line is installed on the overhead cable trough. The first end of each overhead contact line is inserted into the power cable trough on one side of the tunnel, and the second end of each overhead contact line is inserted into the power cable trough on the other side of the tunnel.

[0022] In some embodiments of this utility model, the rail-passing pipe further includes:

[0023] There is at least one signal rail crossing line, and at least one signal rail crossing line is run through the rail crossing cable trough. The two ends of each signal rail crossing line are inserted into two communication cable troughs in a corresponding manner.

[0024] In some embodiments of this utility model, it further includes:

[0025] The first rail-crossing pipe head is provided at least at one end of the rail-crossing pipe, and the first rail-crossing pipe head is correspondingly provided in the side trench cable trough.

[0026] In some embodiments of this utility model, it further includes:

[0027] The second rail crossing pipe head is installed at one end of the rail crossing pipe, and the second rail crossing pipe head is located on the backfill slope.

[0028] In some embodiments of this utility model, the rail-crossing pipe is made of HOPE pipe material.

[0029] In summary, this application includes the following beneficial technical effects: by using the cross-track cable troughs on both sides of the tunnel, the internal space utilization of the tunnel is optimized, effectively reducing conflicts with other facilities and lowering construction difficulty and cost; by using the cross-track cable troughs at a specific angle of 30 to 60 degrees with the cross-track cable troughs, different wiring needs can be effectively adapted, the cable laying path can be optimized, and the convenience and stability of cable installation can be improved.

[0030] The bending radius of the conduit is greater than 1.5 meters, which greatly reduces the risk of cable damage due to excessive bending during the conduit process, extends the service life of the cable, and ensures that the cable remains in good condition during the rail crossing process. This avoids damage to the insulation layer due to excessive bending, which not only extends the service life of the cable, but also ensures the stability of power transmission and signal communication, reduces later maintenance costs, and provides strong support for the long-term safe operation of the tunnel. Attached Figure Description

[0031] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0032] Figure 1 A first view schematically illustrates the arrangement at the tunnel entrance of a tunnel crossing device according to some embodiments of the present invention.

[0033] Figure 2 A second view schematically illustrates the arrangement at the tunnel entrance of a tunnel crossing device according to some embodiments of the present invention.

[0034] Figure 3 A first view schematically illustrates the arrangement of a tunnel passage device according to some embodiments of the present invention at the tunnel chamber.

[0035] Figure 4 A second view schematically illustrates the arrangement of a tunnel passage device in a tunnel chamber according to some embodiments of the present invention.

[0036] Figure 5 A first view schematically illustrates the arrangement of the transformer chamber of a tunnel according to some embodiments of the present invention.

[0037] Figure 6 A second view schematically illustrates the arrangement of the transformer chamber of a tunnel according to some embodiments of the present invention.

[0038] Figure 7 A first view schematically illustrates the layout of the overhead contact line monitoring station chamber of a tunnel according to some embodiments of the present invention.

[0039] Figure 8 A second view schematically illustrates the layout of the overhead contact line monitoring station chamber of a tunnel according to some embodiments of the present invention.

[0040] Figure label:

[0041] 1. Rail crossing pipe, 2. Communication cable trough, 3. Power cable trough, 4. Side ditch, 6. Cable, 7. Partition wall, 8. Communication cable, 9. Transformer chamber, 10. Second rail crossing pipe head, 11. First rail crossing pipe head, 12. Communication rail crossing pipeline, 13. Power rail crossing pipeline, 14. Contact wire rail crossing pipeline, 15. Contact wire switch monitoring station chamber, 16. Base plate, 19. Invert arch, 20. Rail crossing cable trough, 21. Signal rail crossing pipeline, 22. Backfill slope. Detailed Implementation

[0042] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0043] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “” used herein may also indicate the inclusion of the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated, unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0044] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0045] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may also be rotated 90 degrees or in other orientations, and the spatial relative descriptors used in the text will be interpreted accordingly.

[0046] like Figures 1 to 8As shown, according to an embodiment of the first aspect of this utility model, a tunnel track crossing device is proposed, including multiple track crossing pipes 1 and multiple side ditch cable troughs. Side ditch cable troughs are provided on the sides of the side ditches 4 on both sides of the tunnel. One end of the track crossing pipe 1 is inserted into the side ditch cable trough on one side of the tunnel, and the other end of the track crossing pipe 1 is inserted into the side ditch cable trough on the other side of the tunnel. The angle between the track crossing pipe 1 and the side ditch cable trough is between 30 and 60 degrees, and the minimum bending radius of the track crossing pipe 1 is greater than 1.5 meters.

[0047] In the above embodiment, it should be noted that there are multiple rail-crossing pipes 1, which are parallel to each other. The angle between each rail-crossing pipe 1 and the side ditch cable trough is 30 degrees, 45 degrees or 60 degrees. All rail-crossing pipes 1 are pre-embedded below the central water ditch of the tunnel, and the bending radius of each rail-crossing pipe 1 in each direction is greater than 1.5 meters.

[0048] The technical effects achieved by the above embodiments are as follows: By using the cross-track conduit 1 to traverse the cable trenches on both sides of the tunnel, the utilization of internal tunnel space is optimized, effectively reducing conflicts with other facilities and lowering construction difficulty and cost. The cross-track conduit 1, at a specific angle of 30 to 60 degrees to the cable trenches, effectively adapts to different wiring requirements, optimizes the cable 6 laying path, and improves the convenience and stability of cable installation. Furthermore, the bending radius of the cross-track conduit 1 is greater than 1.5 meters, significantly reducing the risk of cable damage due to excessive bending during conduit installation, extending cable lifespan, and ensuring the cable remains in good condition during the cross-track process. This avoids damage to the insulation layer due to excessive bending, not only extending cable lifespan but also ensuring the stability of power transmission and signal communication, reducing subsequent maintenance costs, and providing strong support for the long-term safe operation of the tunnel.

[0049] Optional, such as Figures 1 to 8 As shown, the side ditch cable trough includes a communication cable trough 2 and a power cable trough 3. A communication cable trough 2 is provided on the first side of each side ditch 4 of the tunnel, and a power cable trough 3 is provided on the second side of each side ditch 4 of the tunnel. One end of the rail pipe 1 is connected to the communication cable trough 2 or the power cable trough 3 on one of the side ditch 4, and the other end of the rail pipe 1 is connected to the communication cable trough 2 or the power cable trough 3 on the other side ditch 4.

[0050] In the above optional embodiments, it should be noted that the communication cable trough 2 is used to place the communication cable 8, and the power cable trough 3 is used to place the power cable.

[0051] The advantages of the above optional embodiments are as follows: by placing the communication cable trough 2 and the power cable trough 3 on both sides of the side trench 4, physical isolation is formed, which avoids electromagnetic interference caused by the communication cable 8 and the power cable being close to each other, and ensures stable transmission of communication signals and reliable power supply.

[0052] Optional, such as Figure 4 , Figure 6 and Figure 7 As shown, it also includes a track-crossing cable trough 20. One end of the track-crossing cable trough 20 is connected to a side ditch cable trough on one side of the tunnel, and the other end of the track-crossing cable trough 20 is connected to a side ditch cable trough on the other side of the tunnel. The track-crossing pipe 1 is installed on the track-crossing cable trough 20.

[0053] In the above optional embodiments, it should be noted that multiple rail pipes 1 are all set in the rail cable trough 20. The opening of each rail pipe 1 is polished smooth and both ends of each rail pipe 1 protrude a certain size in the corresponding side ditch cable trough. Then, plugs are set at the openings of both ends of the rail pipe 1 and then sealed with cold sealant to prevent water leakage.

[0054] The advantages of the above-mentioned optional embodiments are as follows: by using the cable tray 20 as a carrier for the cable tray 1, physical protection is provided for the cable tray 1, reducing the risk of damage caused by the complex environment inside the tunnel and extending the service life of the cable tray 1. Multiple cable trays 1 are neatly arranged in the tray, which orderly plans the cable route and enhances the integrity and standardization of tunnel wiring.

[0055] The opening of the cable conduit 1 is ground smooth to reduce frictional damage during cable insertion. Both ends are exposed in the side trench cable trough and sealed with cold-applied sealant, creating a reliable waterproof barrier that effectively prevents water seepage, avoids short-circuit faults caused by water accumulation, and ensures the safe and stable operation of the power and communication systems within the tunnel.

[0056] Optional, such as Figures 1 to 8 As shown, the track-crossing pipe 1 includes a communication track-crossing pipe 12. There is at least one communication track-crossing pipe 12, and at least one communication track-crossing pipe 12 is threaded through the track-crossing cable trough 20. The first end of each communication track-crossing pipe 12 is inserted into the communication cable trough 2 on one side of the tunnel, and the second end of each communication track-crossing pipe 12 is inserted into the communication cable trough 2 on the other side of the tunnel.

[0057] In the above optional embodiments, it should be noted that at least one of the multiple rail-passing pipes 1 is a communication rail-passing pipe 12, which is used to place the communication cable 8. Both ends of at least one communication rail-passing pipe 12 are inserted into the corresponding communication cable trough 2; the first end and the second end of the communication rail-passing pipe 12 are opposite ends.

[0058] The advantages of the above-mentioned optional embodiments are as follows: By integrating the communication rail-crossing pipeline 12 into the rail-crossing cable trough 20, it is orderly separated from other facilities, which avoids mutual interference between different pipelines during construction, reduces the risk of pipeline damage caused by complex environments, and extends the service life of the communication rail-crossing pipeline 12. The two ends of the communication rail-crossing pipeline 12 are precisely connected to the communication cable trough 2. This dedicated channel design greatly reduces the attenuation and interference of communication signals, ensuring stable communication quality. At the same time, because communication cables 8 and power cables are laid separately, it is easier for maintenance personnel to quickly locate and troubleshoot when a communication system failure occurs, improving maintenance efficiency.

[0059] Optional, such as Figures 2 to 8 As shown, the track-crossing pipe 1 also includes an electric track-crossing pipe 13. There is at least one electric track-crossing pipe 13, and at least one electric track-crossing pipe 13 is threaded through the track-crossing cable trough 20. The first end of each electric track-crossing pipe 13 is inserted into the electric cable trough 3 on one side of the tunnel, and the second end of each electric track-crossing pipe 13 is inserted into the electric cable trough 3 on the other side of the tunnel.

[0060] In the above optional embodiments, it should be noted that at least one of the multiple rail-passing pipes 1 is an electric rail-passing pipe 13, which is used to place electric cables, and both ends of at least one electric rail-passing pipe 13 are inserted into the corresponding electric cable trough 3.

[0061] It also includes a partition wall 7 and a transformer chamber 9, in which power cables and communication cables 8 are installed, and the power cables and communication cables 8 are separated by the partition wall 7.

[0062] The advantages of the above-mentioned optional embodiments are as follows: by arranging the power rail-crossing pipeline 13 within the rail-crossing cable trough 20, the power transmission line is orderly separated from other facilities, effectively avoiding mutual interference between different pipelines during construction, reducing the risk of pipeline damage caused by environmental factors, and significantly extending the service life of the power rail-crossing pipeline 13. The precise connection between both ends of the power rail-crossing pipeline 13 and the power cable trough 3 ensures the stability of power transmission and reduces energy loss caused by improper line connections.

[0063] Optional, such as Figure 6 As shown, the overhead contact line 1 also includes at least one overhead contact line 14, which is installed on the overhead contact cable trough 20. The first end of each overhead contact line 14 is inserted into the power cable trough 3 on one side of the tunnel, and the second end of each overhead contact line 14 is inserted into the power cable trough 3 on the other side of the tunnel.

[0064] In the above optional embodiments, it should be noted that at least one of the multiple rail-passing pipes 1 is a contact wire rail-passing pipe 14, which is used to place contact wire cables, and both ends of at least one contact wire rail-passing pipe 14 are inserted into the corresponding power cable trough 3.

[0065] It also includes the overhead contact line switch monitoring station chamber 15, in which overhead contact line cables and communication cables 8 are installed, and the overhead contact line cables and communication cables 8 are isolated from each other by a partition wall 7.

[0066] The advantages of the above optional embodiments are: the installation of the overhead contact line 14 significantly improves the level of tunnel electrification; and the overhead contact line 14 is integrated into the overhead cable trough 20, making full use of space.

[0067] Optionally, as shown in 7, the track-crossing pipe 1 also includes a signal track-crossing pipe 21, at least one signal track-crossing pipe 21 is threaded through the track-crossing cable trough 20, the first end of each signal track-crossing pipe 21 is inserted into the communication cable trough 2 on one side of the tunnel, and the second end of each signal track-crossing pipe 21 is inserted into the communication cable trough 2 on the other side of the tunnel.

[0068] In the above optional embodiments, it should be noted that at least one of the multiple rail-passing pipes 1 is a signal rail-passing pipe 21, which is used to place signal cables, and both ends of at least one signal rail-passing pipe 21 are inserted into the corresponding communication cable trough 2.

[0069] In the auxiliary tunnel, both the signal rail-crossing pipeline 21 and the communication rail-crossing pipeline 12 have one end laid on the backfill slope 22. At the location with the invert arch 19, both the signal rail-crossing pipeline 21 and the communication rail-crossing pipeline 12 are located above the invert arch 19. At the location without the invert arch 19, both the power rail-crossing pipeline 13, the signal rail-crossing pipeline 21, and the communication rail-crossing pipeline 12 are located below the bottom plate 16.

[0070] The advantages of the above optional embodiments are as follows: by incorporating the signal rail-crossing pipeline 21 into the rail-crossing cable trough 20 and arranging it in an orderly manner with other pipelines in layers, the interference between the signal cable and other pipelines is avoided, the risk of damage caused by construction collisions is reduced, and the service life of the pipeline is extended.

[0071] Optional, such as Figures 1 to 8 As shown, it also includes a first rail-passing pipe head 11. At least one end of the rail-passing pipe 1 is provided with a first rail-passing pipe head 11, and the first rail-passing pipe heads 11 are respectively arranged in the side trench cable trough.

[0072] In the above optional embodiments, it should be noted that the two ends of the communication rail line 12 at the tunnel entrance, the two ends of the communication rail line 12 in the tunnel chamber, the two ends of the power rail line 13, the two ends of the communication rail line 12 in the transformer chamber 9 of the tunnel, the two ends of the communication rail line 12 in the contact network switch monitoring station chamber 15, the two ends of the power rail line 13 and the two ends of the contact network rail line 14, and the two ends of the power rail line 13 at the intersection of the disaster prevention and rescue evacuation channel and the main tunnel are all provided with a first rail head 11. Each first rail head 11 is connected to the corresponding rail line 1 by an integral molding method.

[0073] The size of each first rail-crossing pipe head 11 is between 10mm and 20mm. The first rail-crossing pipe head 11 on the power rail-crossing pipeline 13 and the first rail-crossing pipe head 11 on the contact wire rail-crossing pipeline 14 are both installed in the corresponding power cable trough 3.

[0074] The advantages of the above-mentioned optional embodiments are as follows: the first track-crossing pipe head 11 is integrally formed with the track-crossing pipe 1, reducing splicing steps, lowering construction difficulty, and improving installation efficiency. Setting the pipe head in the side trench cable trough at key locations such as tunnel entrances and chambers achieves seamless connection between the track-crossing pipe 1 and the side trench cable trough, greatly enhancing the connection's strength and effectively resisting the effects of train vibration, geological settlement, and other factors, preventing track loosening and displacement. The 10mm to 20mm size design adapts to the limited space of the tunnel and does not affect the overall layout.

[0075] The first track-crossing pipe head 11 is installed in the power cable trough 3, which standardizes the route and allows maintenance personnel to quickly locate faults, shorten maintenance time, and ensure the safe and stable operation of the tunnel's power and communication systems.

[0076] Optional, such as Figure 8 As shown, it also includes a second rail-crossing pipe head 10. One end of the rail-crossing pipe 1 is provided with a second rail-crossing pipe head 10, which is located on the backfill slope 22.

[0077] In the above optional embodiments, it should be noted that the pipeline crossing of the auxiliary tunnel external signal relay station includes at least one signal crossing pipeline 21, at least one communication crossing pipeline 12, and at least one power crossing pipeline 13; at this time, the first end of each signal crossing pipeline 21, the first end of each communication crossing pipeline 12, and the first end of each power crossing pipeline 13 are integrally formed with a first crossing pipe head 11, and the second end of each signal crossing pipeline 21, the second end of each communication crossing pipeline 12, and the second end of each power crossing pipeline 13 are integrally formed with a second crossing pipe head 10; the length of each second crossing pipe head 10 is greater than or equal to 50mm.

[0078] The advantages of the above-mentioned optional embodiments are as follows: When a signal relay station is set up outside the auxiliary tunnel, the second rail-crossing pipe head 10 is integrally formed with the rail-crossing pipe 1, ensuring a strong connection. Simultaneously, the design of a length of 50mm or more provides more stable support on the backfill slope 22, effectively resisting damage to the rail-crossing pipe 1 caused by slope settlement or external pressure, ensuring the safety of signal, communication, and power lines. The first rail-crossing pipe head 11 and the second rail-crossing pipe head 10 are respectively set at both ends of the rail-crossing pipe 1, adapting to the complex wiring environment of the tunnel, improving the convenience of line laying during construction, reducing construction difficulty, and saving installation time.

[0079] Optional, such as Figures 1 to 8 As shown, the rail pipe 1 is made of HOPE pipe.

[0080] In the above optional embodiments, it should be noted that each rail-passing pipe 1 is made of HOPE pipe material.

[0081] The advantages of the above optional embodiments are as follows: HOPE pipes have excellent corrosion resistance, effectively resisting water vapor and chemical corrosion in the humid environment of tunnels, extending the service life of the rail-crossing pipe 1, and reducing pipe damage and line faults caused by corrosion. Its good compressive strength allows the rail-crossing pipe 1 to maintain structural integrity even when subjected to the pressure of the backfill slope 22 and external impacts, ensuring the safety of internal cables.

[0082] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.

Claims

1. A tunnel track-crossing device, characterized in that, include: Side trench cable troughs are provided on the sides of the side trenches (4) on both sides of the tunnel. There are multiple rail-passing pipes (1), one end of each rail-passing pipe (1) is inserted into the side trench cable trough on one side of the tunnel, and the other end of each rail-passing pipe (1) is inserted into the side trench cable trough on the other side of the tunnel. The angle between each of the rail-passing pipes (1) and the side trench cable trough is between 30 and 60 degrees, and the minimum bending radius of each of the rail-passing pipes (1) is greater than 1.5 meters.

2. The tunnel track-crossing device according to claim 1, characterized in that, The side trench cable tray includes: Communication cable trough (2) and power cable trough (3) are provided on the first side of the side ditch (4) on each side of the tunnel. The power cable trough (3) is provided on the second side of the side ditch (4) on each side of the tunnel. One end of the rail pipe (1) is connected to the communication cable trough (2) or the power cable trough (3) on one of the side ditches (4), and the other end of the rail pipe (1) is connected to the communication cable trough (2) or the power cable trough (3) on the other side ditches (4).

3. The tunnel track-crossing device according to claim 2, characterized in that, Also includes: The overpass cable trough (20) has one end connected to the side ditch cable trough on one side of the tunnel and the other end connected to the side ditch cable trough on the other side of the tunnel. The overpass pipe (1) is installed on the overpass cable trough (20).

4. The tunnel track-crossing device according to claim 3, characterized in that, The rail-passing tube (1) includes: Communication overpass pipeline (12), there is at least one communication overpass pipeline (12), at least one of the communication overpass pipelines (12) is installed on the overpass cable trough (20), the first end of each of the communication overpass pipelines (12) is inserted into the communication cable trough (2) on one side of the tunnel, and the second end of each of the communication overpass pipelines (12) is inserted into the communication cable trough (2) on the other side of the tunnel.

5. The tunnel track-crossing device according to claim 3, characterized in that, The rail-passing tube (1) also includes: There is at least one power rail crossing line (13), and at least one power rail crossing line (13) is installed on the rail crossing cable trough (20). The second end of each power rail crossing line (13) is inserted into the power cable trough (3) on the other side of the tunnel.

6. The tunnel track-crossing device according to claim 3, characterized in that, The rail-passing tube (1) also includes: There is at least one overhead contact line (14), and at least one overhead contact line (14) is installed on the overhead cable trough (20). The first end of each overhead contact line (14) is inserted into the power cable trough (3) on one side of the tunnel, and the second end of each overhead contact line (14) is inserted into the power cable trough (3) on the other side of the tunnel.

7. The tunnel track-crossing device according to claim 3, characterized in that, The rail-passing tube (1) also includes: Signal rail crossing line (21), there is at least one signal rail crossing line (21), at least one signal rail crossing line (21) is threaded through the rail crossing cable trough (20), and the two ends of each signal rail crossing line (21) are inserted into the two communication cable troughs (2) respectively.

8. The tunnel track-crossing device according to any one of claims 1-7, characterized in that, Also includes: The first rail head (11) is provided at least one end of the rail pipe (1), and the first rail head (11) is correspondingly provided in the side trench cable groove.

9. The tunnel track-crossing device according to claim 8, characterized in that, Also includes: The second rail-crossing pipe head (10) is provided at one end of the rail-crossing pipe (1), and the second rail-crossing pipe head (10) is located on the backfill slope (22).

10. The tunnel track-crossing device according to claim 1, characterized in that, The rail-crossing pipe (1) is made of HOPE pipe material.