A method for constructing a power tube bundle by integrally connecting and sinking

Abstract

The application discloses a kind of electric power tube bundle legal connection and sinking integration construction method, belong to electric power tube field, including steps: in the electric power tube trench of having been poured concrete cushion, deployment including tube and limiting transport mechanism, tube and optical cable assembly area, final assembly transport mechanism and walking mechanism integrated intelligent construction equipment;Limiting structure is transported to tube and optical cable assembly area specified position;Complete first layer tube bundle joint socket by clamping positioning mechanism;Synchronously complete distributed sensing optical cable layout;Layered repeated arrangement, form integrated tube bundle component;Through final assembly transport mechanism, integrated tube bundle component is sunk to trench concrete cushion;Walking mechanism advances a pitch along trench center line, realizes continuous, uninterrupted electric power tube intelligent construction.The application can solve the problems of low efficiency, poor connection accuracy, perception system postposition and difficulty in collaborative installation of multi-layer tube in the existing electric power tube construction method.

Description

Technical Field

[0001] This invention relates to the field of power duct construction technology, and in particular to an integrated construction method for the legal connection and placement of power duct bundles. Background Technology

[0002] With the high-density development of urban underground space, power duct projects face challenges such as low construction efficiency, poor connection reliability, and insufficient intelligent operation and maintenance. Traditional construction methods often involve manual pipe laying and layered backfilling, resulting in large misalignment of the pipes, easy loosening of socket joints, and the inability to integrate sensing units within the structure.

[0003] While some mechanized pipe-laying equipment has emerged in recent years, it primarily focuses on single-pipe transmission, lacking the capability for coordinated construction of the "pipeline-limiting structure-optical cable." Especially for sensing optical cables, secondary threading is typically performed after pipe backfilling, which not only presents construction difficulties but also results in poor coupling between the cable and the pipe body, making it difficult to accurately reflect the structural stress state. Furthermore, when multiple layers of pipes are laid in parallel, without effective limiting mechanisms, uneven soil pressure can easily lead to pipe displacement and joint misalignment, affecting long-term safety. Current technologies lack a method to simultaneously address multiple challenges, including high-precision socket connections, continuous optical cable laying, integrated limiting structures, and stable overall immersion. Therefore, there is an urgent need for an integrated construction method that deeply integrates pipe connection, limiting assembly, optical cable laying, and immersion operations to achieve high-efficiency, high-reliability, and highly intelligent power pipe construction. Summary of the Invention

[0004] The purpose of this invention is to provide an integrated construction method for the legal connection and placement of power duct bundles, which solves the problems of low efficiency, poor connection accuracy, post-positioning of sensing systems, and difficulty in coordinating the installation of multi-layer ducts in existing power duct construction methods.

[0005] To achieve the above objectives, the present invention provides an integrated construction method for the legal connection and placement of power cable bundles, comprising the following steps: Step 1: Deploy integrated intelligent construction equipment in the power duct trench with the already poured concrete foundation, including the duct and limiting conveying mechanism, the duct and optical cable assembly area, the final assembly conveying mechanism, and the traveling mechanism. Step 2: Transport the limiting structure to the designated position in the pipe and optical cable assembly area; Step 3: Using the clamping and positioning mechanism, place several MPP pipes on the first floor into the pipe slots of the limiting structure, and complete the bundling and socket connection with the pipes already installed in the front section. Step 4: After completing the connection of the first layer of pipes, simultaneously lay the entire continuous and uninterruptible distributed sensing optical cable in the special optical cable slot of the limiting structure. Step 5: Place the second-layer limiting structure above the first-layer pipe and connect and fix it with the first-layer limiting structure to clamp the pipe and optical cable. Step six, repeat steps three to five until the K-layer tube, K-layer optical cable and corresponding limiting structure are fully bundled and assembled to form an integrated tube bundle component; Step 7: The integrated tube bundle component is lifted and smoothly lowered onto the trench concrete cushion layer by the final assembly and conveying mechanism. Step 8: The traveling mechanism advances one pitch along the centerline of the trench, and steps 2 to 7 are repeated to achieve continuous and uninterrupted intelligent construction of power ducts.

[0006] Preferably, the MPP pipe is a segmented prefabricated pipe. The pipe is bundled together in several layers and columns through a limiting structure. During the bundling process, the pipe is connected to the integrated pipe bundle component that has been bundled together in the previous section using a socket-type flexible joint. The bundling and socket connection of the pipe is completed by a clamping and positioning mechanism.

[0007] Preferably, the length of a single section of the MPP pipe is 6m or 9m, and the concentricity deviation of the MPP pipe ends after the bundled socket connection is ≤0.5mm.

[0008] Preferably, the pipe laying and limiting conveying mechanism is located at the front end of the integrated intelligent construction equipment and synchronously conveys the power pipe bundle according to the construction rhythm. The pipe laying and limiting conveying mechanism includes a pipe laying material bin for placing the MPP pipe, a limiting material bin for placing the limiting structure, and a conveyor belt for the integrated pipe bundle components. The pipe and optical cable assembly area is located behind the pipe and limiting conveyor mechanism. The limiting structure in the limiting material bin is placed onto the conveyor belt by the clamping and positioning mechanism.

[0009] Preferably, the limiting structure is a modular structure, which adopts an upper limiting plate and a lower limiting plate that are symmetrically arranged. The upper limiting plate and the lower limiting plate of the limiting structure are provided with symmetrically arranged pipe slots and special optical cable slots, and are equipped with locking elements.

[0010] Preferably, the clamping and positioning mechanism includes several high-precision clamping and positioning mechanical claws located on the top and sides. The high-precision clamping and positioning mechanical claws are used for the movement and placement of the pipe arrangement and the limiting structure, the pipe arrangement and socket connection, the socket connection auxiliary clamping, and the assembly of the limiting structure.

[0011] Preferably, the distributed sensing optical cable is laid out through rotating guide pulleys. The distributed sensing optical cable is laid out as a whole. The distributed sensing optical cable is combined with MPP duct to realize distributed sensing of strain, temperature and displacement throughout the entire area and life cycle.

[0012] Preferably, the integrated tube bundle component adopts a multi-layer, multi-row arrangement, with each layer of tubes being clamped by upper and lower limiting structures, and the interlayer limiting structures being connected and transferring loads through connecting structures.

[0013] Preferably, the final assembly conveyor is located behind the pipe and optical cable assembly area. The final assembly conveyor includes a final conveyor belt for transporting the integrated tube bundle component. The final conveyor belt is connected to a conveyor belt. At the end of the final conveyor belt, there are several transport forklifts. The transport forklifts lift the integrated tube bundle component and work together to smoothly and undisturbedly place the assembled integrated tube bundle component onto the trench concrete cushion layer.

[0014] Preferably, the traveling mechanism adopts a wheeled or tracked structure, and has the ability to automatically track the centerline of the trench and adapt to elevation.

[0015] Therefore, the present invention employs the above-mentioned integrated construction method for the legal connection and placement of power cable bundles, which has the following beneficial effects: (1) The integrated and simultaneous construction of pipe laying, limiting structure and optical cable is realized, which greatly improves construction efficiency and structural integrity; (2) The use of bundled socket connection + modular limiting structure ensures that the pipes are neatly arranged, the connection is reliable and the overall stability is high; (3) The sensing optical cable is laid continuously and without interruption, providing a high-fidelity data foundation for structural health monitoring throughout the entire life cycle; (4) The overall component sinking avoids the accumulation of single pipe positioning deviation, which significantly improves the smoothness of the pipe arrangement in the trench and the durability of the project.

[0016] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0017] Figure 1 This is a flowchart illustrating the steps of an embodiment of the integrated construction method for legal connection and placement of power duct bundles according to the present invention. Figure 2 This is a schematic diagram of the overall structure of the integrated intelligent construction equipment according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the pipe arrangement and limiting conveying mechanism and the pipe and optical cable assembly area structure according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the placement of the first-layer pipe arrangement in an embodiment of the present invention; Figure 5 This is a schematic diagram of the placement of multi-layer pipes according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the transportation of the integrated tube bundle component according to an embodiment of the present invention.

[0018] In the diagram: 1. Pipe laying and limiting conveying mechanism; 2. Pipe laying and optical cable assembly area; 3. Final assembly conveying mechanism; 4. Traveling mechanism; 5. Limiting structure; 6. Clamping and positioning mechanism; 7. Pipe laying slot; 8. Dedicated optical cable slot; 9. Pipe laying material bin; 10. Limiting material bin; 11. Guide pulley; 12. Integrated tube bundle component; 13. Conveyor belt; 14. Final conveyor belt. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages disclosed in the embodiments of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the embodiments of the present invention and are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments in this application without creative effort are within the scope of protection of this application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0020] It should be noted that the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such as a process, method, system, product, or server that includes a series of steps or units, not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such processes, methods, products, or devices.

[0021] Similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed when in use. They are only for the convenience of describing this invention 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 limiting this invention.

[0023] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] Example: like Figure 1 As shown, the integrated construction method for legal connection and placement of power duct bundles according to the present invention includes the following steps: Step 1, as follows Figure 2 As shown, in the power duct trench with the concrete foundation already poured, an integrated intelligent construction equipment is deployed, including a duct and limiting conveying mechanism 1, a duct and optical cable assembly area 2, a final assembly conveying mechanism 3, and a traveling mechanism 4.

[0025] like Figure 3 As shown, the pipe laying and limiting conveying mechanism 1 is located at the very front of the integrated intelligent construction equipment, and synchronously conveys the power pipe bundles according to the construction rhythm, realizing precise matching between material supply and assembly rhythm, and avoiding construction interruption or accumulation. The pipe laying and optical cable assembly area 2 is located behind the pipe laying and limiting conveying mechanism 1, and the final assembly conveying mechanism 3 is located behind the pipe laying and optical cable assembly area 2.

[0026] The pipe laying and limiting conveying mechanism 1 includes a pipe laying material bin 9 for placing MPP pipes, a limiting material bin 10 for placing the limiting structure 5, and a conveyor belt 13 for the integrated pipe bundle component 12. The limiting structure 5 is a modular structure, employing symmetrically arranged upper and lower limiting plates. The upper and lower limiting plates of the limiting structure 5 are equipped with symmetrically arranged pipe laying slots 7 and dedicated optical cable slots 8, and are fitted with locking elements (buckles or bolts).

[0027] The clamping and positioning mechanism 6 includes several high-precision clamping and positioning mechanical claws located on the top and sides. The high-precision clamping and positioning mechanical claws are used for the movement and placement of the pipe arrangement and the limiting structure 5, the pipe arrangement and socket connection, the socket connection auxiliary clamping, and the assembly of the limiting structure 5.

[0028] The traveling mechanism 4 adopts a wheeled or tracked structure, which has the ability to automatically track the centerline of the trench and adapt to elevation. The positioning accuracy is controlled within ±10mm. In this embodiment, the traveling mechanism 4 preferably adopts a wheeled structure (a truck with wheels) to adapt to stable travel on soft soil or uneven trench bottoms.

[0029] Step 2: The limiting structure 5 in the limiting material bin 10 is placed onto the pipe conveyor belt 13 by the clamping and positioning mechanism 6. The limiting structure 5 is then conveyed to the designated position in the pipe and optical cable assembly area 2 by the conveyor belt 13 to complete the initial positioning.

[0030] Step 3, as Figure 4 As shown, the clamping and positioning mechanism 6 takes out several MPP pipes (typically 4 pipes) from the first layer, accurately places them in the pipe slot 7 of the limiting structure 5, and completes the bundling and socket connection with the pipes already installed in the front section.

[0031] The pipes are bundled together in several layers and columns via a limiting structure 5. During the bundling process, the pipes are connected to the integrated pipe bundle component 12, which has already been bundled together, using a socket-type flexible joint. The bundling and socket connection of the pipes is completed by a clamping and positioning mechanism 6. The MPP pipes are prefabricated segmented pipes, with a single section length of 6m or 9m. The socket connection process provides a radial clamping force of 0.6-1.0MPa, combined with high-precision clamping and positioning, ensuring that the concentricity deviation of the pipe ends is ≤0.5mm, the joint is reliably sealed, and the pull-out resistance meets engineering specifications.

[0032] Step 4: After completing the connection of the first layer of pipes, the entire continuous and uninterruptible distributed sensing optical cable is simultaneously laid in the dedicated optical cable slot 8 of the limiting structure 5.

[0033] The distributed sensing optical cable is laid out via rotating guide pulleys 11, and a tension control structure can be used to ensure that the optical cable is free from bending, twisting, and local stress concentration. The distributed sensing optical cable is laid out as a single continuous cable, and when combined with MPP ductwork, it enables distributed sensing of strain, temperature, and displacement throughout the entire area and lifespan.

[0034] Step 5, as Figure 5 As shown, the second-layer limiting structure 5 is placed above the first-layer pipe arrangement and connected and fixed to the first-layer limiting structure 5, clamping the pipe arrangement and the optical cable. Figure 5 In the middle, the upper and lower limit plates of adjacent pipe layers adopt an integrated structure.

[0035] Step six, repeat steps three to five until the K-layer (typically 3 layers) duct, K-layer optical cable and corresponding limiting structure 5 are fully bundled and assembled to form an integrated duct bundle component 12.

[0036] like Figure 6 As shown, the integrated tube bundle component 12 adopts a multi-layer, multi-column arrangement, with a typical configuration of 3 layers × 4 columns of tubes combined with 3 layers × 2 optical cables. Each layer of tubes is clamped from above and below by limiting structures 5. The interlayer limiting structures 5 are connected by connecting structures (clamps or bolts) and transfer loads to form an overall force-bearing system.

[0037] Step 7: The integrated tube bundle component 12 is lifted and smoothly lowered onto the trench concrete cushion layer by the final assembly conveying mechanism 3.

[0038] The final assembly conveyor mechanism 3 is located behind the pipe and optical cable assembly area 2. The final assembly conveyor mechanism 3 includes a final conveyor belt 14 for transporting the integrated tube bundle component 12. The final conveyor belt 14 is connected to a conveyor belt 13. Several transport forklifts are installed at the end of the final conveyor belt 14. The transport forklifts lift the integrated tube bundle component 12 and work together to smoothly and undisturbedly lower the assembled integrated tube bundle component 12 onto the trench concrete cushion. During the lowering process, it is ensured that the socket joint is not loose and the limiting structure 5 remains upright and not tilted to avoid structural failure due to impact or vibration.

[0039] Step 8: The traveling mechanism 4 advances one pitch (corresponding to a 6m or 9m pipe section length) along the centerline of the trench. Steps 2 to 7 are repeated to achieve continuous and uninterrupted intelligent construction of power pipes.

[0040] This invention achieves a high degree of integration and synchronous operation of four processes: "pipe connection – limiting and fixing – optical cable laying – overall sinking". The construction efficiency is more than three times higher than that of traditional manual methods, and the smoothness of pipe laying, connection reliability and the integrity of the sensing system are significantly improved.

[0041] Therefore, the present invention adopts the above-mentioned integrated construction method for the legal connection and placement of power pipe bundles. Through the high integration of processes, precise process control and intelligent equipment collaboration, it realizes the multi-layer bundle socket connection of MPP pipes, the modular assembly of the limiting structure 5, the synchronous and continuous deployment of distributed sensing optical cables, and the stable and precise placement of the overall pipe bundle components, so that the pipe structure has intelligent sensing capabilities throughout the entire area and life cycle during the construction stage.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A method for the integrated construction of legal connection and placement of power cable duct bundles, characterized in that, Includes the following steps: Step 1: Deploy integrated intelligent construction equipment in the power duct trench with the already poured concrete foundation, including the duct and limiting conveying mechanism, the duct and optical cable assembly area, the final assembly conveying mechanism, and the traveling mechanism. Step 2: Transport the limiting structure to the designated position in the pipe and optical cable assembly area; Step 3: Using the clamping and positioning mechanism, place several MPP pipes on the first floor into the pipe slots of the limiting structure, and complete the bundling and socket connection with the pipes already installed in the front section. Step 4: After completing the connection of the first layer of pipes, simultaneously lay the entire continuous and uninterruptible distributed sensing optical cable in the special optical cable slot of the limiting structure. Step 5: Place the second-layer limiting structure above the first-layer pipe and connect and fix it with the first-layer limiting structure to clamp the pipe and optical cable. Step six, repeat steps three to five until the K-layer tube, K-layer optical cable and corresponding limiting structure are fully bundled and assembled to form an integrated tube bundle component; Step 7: The integrated tube bundle component is lifted and smoothly lowered onto the trench concrete cushion layer by the final assembly and conveying mechanism. Step 8: The traveling mechanism advances one pitch along the centerline of the trench, and steps 2 to 7 are repeated to achieve continuous and uninterrupted intelligent construction of power ducts.

2. The integrated construction method for legal connection and placement of power duct bundles according to claim 1, characterized in that, MPP pipes are segmented prefabricated pipes. The pipes are bundled together in several layers and columns through a limiting structure. During the bundling process, the pipes are connected to the integrated pipe bundle components that have been bundled together in the previous section using a socket-type flexible joint. The bundling and socket connection of the pipes is completed by a clamping and positioning mechanism.

3. The integrated construction method for legal connection and placement of power duct bundles according to claim 2, characterized in that, After the MPP pipe ends are connected by a socket joint, the concentricity deviation is ≤0.5mm.

4. The integrated construction method for legal connection and placement of power duct bundles according to claim 1, characterized in that, The pipe laying and limiting conveying mechanism is located at the front end of the integrated intelligent construction equipment and synchronously conveys the power pipe bundle according to the construction rhythm. The pipe laying and limiting conveying mechanism includes a pipe laying material bin for placing the MPP pipe, a limiting material bin for placing the limiting structure, and a conveyor belt for conveying the integrated pipe bundle components. The pipe and optical cable assembly area is located behind the pipe and limiting conveyor mechanism. The limiting structure in the limiting material bin is placed onto the conveyor belt by the clamping and positioning mechanism.

5. The integrated construction method for legal connection and placement of power cable bundles according to claim 4, characterized in that, The limiting structure is a modular structure. The limiting structure adopts symmetrically arranged upper and lower limiting plates. The upper and lower limiting plates of the limiting structure are equipped with symmetrically arranged pipe slots and special optical cable slots, and are equipped with locking elements.

6. The integrated construction method for legal connection and placement of power duct bundles according to claim 4, characterized in that, The clamping and positioning mechanism includes several high-precision clamping and positioning mechanical claws located on the top and sides. The high-precision clamping and positioning mechanical claws are used for the movement and placement of the pipe arrangement and the limiting structure, the pipe bundle connection and socket connection, the socket connection auxiliary clamping, and the assembly of the limiting structure.

7. The integrated construction method for legal connection and placement of power duct bundles according to claim 1, characterized in that, Distributed sensing optical cables are laid out using rotating guide pulleys. The distributed sensing optical cables are laid out as a single continuous line. Combined with MPP ductwork, distributed sensing of strain, temperature, and displacement is achieved throughout the entire area and lifespan.

8. The integrated construction method for legal connection and placement of power duct bundles according to claim 1, characterized in that, The integrated tube bundle component adopts a multi-layer, multi-row arrangement. Each layer of tubes is clamped by a limiting structure from above and below. The limiting structures between layers are connected by a connecting structure and transfer the load.

9. The integrated construction method for legal connection and placement of power duct bundles according to claim 1, characterized in that, The final assembly conveyor is located behind the pipe and optical cable assembly area. The final assembly conveyor includes a final conveyor belt for transporting the integrated tube bundle component. The final conveyor belt is connected to the conveyor belt. At the end of the final conveyor belt, there are several transport forklifts. The transport forklifts lift the integrated tube bundle component and work together to smoothly and undisturbedly place the assembled integrated tube bundle component onto the trench concrete cushion layer.

10. The integrated construction method for legal connection and placement of power cable bundles according to claim 1, characterized in that, The traveling mechanism adopts a wheeled or tracked structure and has the ability to automatically track the centerline of the trench and adapt to elevation.

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