Shield trailer underground translation method

Abstract

The invention discloses an underground translation method for a shield trailer, adopts a module vehicle as a driving assembly of an underground mobile platform, and aims to solve the technical problems that the underground assembly efficiency of the shield trailer is low and the translation operation is tedious and complicated. The movable platform with the module vehicle as a driving part is adopted, the technical problems that in the prior art, an underground device for shield trailer assembly is complex to build, the moving space is limited, and extra heightening is needed are effectively solved, and then underground fast moving and assembly of the shield trailer are achieved; the plurality of module vehicles are relatively fixed through the connecting rods, so that the problem of tiny position difference generated when the plurality of module vehicles are driven is effectively solved, and the consistency and the stability of the movement of the mobile platform are further ensured; by projecting a guide line during butt joint, the problem that the butt joint between the trailer and the moving platform and the butt joint between the moving platform and the horizontal section rail are difficult is effectively solved, and therefore high-precision and efficient butt joint is achieved.

Description

Technical Field

[0001] This application relates to the field of tunnel boring machine (TBM) construction technology, specifically to a method and device for underground translation of a TBM trailer. Background Technology

[0002] The underground assembly of the trailer is a crucial and complex step in the tunnel boring machine (TBM) assembly process. Due to the limitations of the TBM assembly shaft structure (such as the presence of a central partition wall) and the significant height difference between the shaft bottom and the horizontal section of the tunnel, the trailer cannot be directly placed to its designed position in a single hoisting operation. Therefore, the trailer must first be hoisted into the shaft bottom and then moved and precisely aligned multiple times within the narrow and confined underground space. This process greatly increases the difficulty and complexity of assembling the TBM trailer.

[0003] The commonly used solution is to lay sliding tracks or sliding plates and apply lubricating oil, using a hydraulic pump station and cylinders to provide power. However, this traditional translation method has significant limitations: its degree of freedom of movement is limited (usually only unidirectional or small-range bidirectional movement is possible), operation relies on cylinder pushing and the process is cumbersome and time-consuming, making it difficult to guarantee the precise positioning accuracy of the trailer after long-distance movement; at the same time, cylinder pushing poses a risk of deformation of the fixing frame or even equipment damage, and this temporary auxiliary system needs to be disassembled and removed after the translation is completed, which increases the workload and time cost; furthermore, when there is a height difference between the bottom of the hoisting well and the horizontal section, profiles are needed to fill the height difference, making the assembly of the sliding equipment in the well more time-consuming and the structure more complicated.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the background technology of this disclosure and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0005] In view of at least one of the above technical problems, this disclosure provides a method for underground translation of a tunnel boring machine trailer, which mainly solves the technical problems of low efficiency in underground assembly of tunnel boring machine trailers and cumbersome and complicated translation operations.

[0006] According to one aspect of this disclosure, a method for underground translation of a tunnel boring machine trailer is provided, comprising the following steps: (1) The height-adjustable modular vehicle is hoisted to the bottom of the shield assembly shaft, and a movable guide rail is set at the top of the modular vehicle as a movable platform; (2) Pre-assemble the shield trailer section at ground level, and move the mobile platform to the shield trailer hoisting wellhead; (3) The assembled shield trailer section is lowered into the well and placed on the corresponding moving guide rail; (4) Adjust the mobile platform until the mobile guide rail is collinear with the trailer track in the well. After adjusting the wheel orientation of the mobile platform, control the mobile platform to move until the mobile guide rail and the trailer track are in contact. (5) Move the shield trailer section to the trailer track; (6) Repeat steps (2) to (5) to lower each of the shield trailer sections into the well and connect them in the order from front to back.

[0007] In some embodiments of this disclosure, in step (1), the mobile platform includes at least two modular vehicles rigidly connected by connectors, and a road plate fixedly disposed on the top of the modular vehicles for mounting the mobile guide rail.

[0008] In some embodiments of this disclosure, in step (1), the track gauge of the moving guide rail is matched with the wheel track of the shield trailer section.

[0009] In some embodiments of this disclosure, in step (2), before the shield trailer section is lifted, the mobile platform is adjusted to the highest height within the adjustment range of the mobile guide rail.

[0010] In some embodiments of this disclosure, in step (4), the end of the horizontal section of the track is provided with a guide rail support platform and the corresponding end of the movable guide rail extends out of the movable platform by a certain length; after the extended end of the movable guide rail is moved to a position above the guide rail support platform, the movable platform is adjusted so that the height of the movable guide rail is gradually reduced to contact the guide rail support platform.

[0011] In some embodiments of this disclosure, in step (3), the bottom of the shield trailer section is provided with a first laser source for guiding the shield trailer to align with the mobile platform.

[0012] In some embodiments of this disclosure, in step (3), after the shield trailer section is lowered onto the moving guide rail, anti-slip measures are applied to the shield trailer section.

[0013] In some embodiments of this disclosure, in step (4), a second laser source is provided at the end of the trailer track to guide the mobile platform to align with the trailer track.

[0014] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages: 1. By adopting a mobile platform with modular vehicles as the driving components, the technical problems of complex construction, limited movement space, and the need for additional elevation of the underground equipment assembled by the shield tunneling trailer in the existing technology are effectively solved, thereby realizing the rapid underground movement and assembly of the shield tunneling trailer.

[0015] 2. By fixing multiple modular vehicles relatively in place using connecting rods, the problem of slight positional differences that may occur when multiple modular vehicles are driven is effectively solved, thereby ensuring the consistency and stability of the mobile platform's movement.

[0016] 3. By projecting light during docking, the problem of difficult docking between the trailer and the mobile platform, and between the mobile platform and the horizontal track section, is effectively solved, thus achieving high-precision and efficient docking. Attached Figure Description

[0017] Figure 1 This is a flowchart of a method for underground translation of a tunnel boring machine trailer in one embodiment of this application.

[0018] Figure 2 This is a schematic diagram of the structure of a mobile platform in one embodiment of this application.

[0019] Figure 3 This is a schematic diagram of the shield tunnel assembly shaft in one embodiment of this application.

[0020] Figure 4 This is a schematic diagram illustrating the process of hoisting and lowering a shield trailer section into the well in one embodiment of this application.

[0021] Figure 5 This is a schematic diagram illustrating the process of the moving guide rail and the trailer track making corresponding contact in one embodiment of this application.

[0022] Figure 6 This is a schematic diagram illustrating the process of the extended end of the movable guide rail contacting the guide rail support platform in one embodiment of this application.

[0023] Figure 7 This is a schematic diagram of a shield tunnel trailer section moving to the trailer track in one embodiment of this application.

[0024] Figure 8 This is a schematic diagram illustrating the process of fixing two shield trailer sections in one embodiment of this application.

[0025] Figure 9 This is a schematic diagram of the shield tunneling trailer moving to the trailer track in one embodiment of this application.

[0026] In the above figures, 1 is the mobile platform, 11 is the modular vehicle, 12 is the connecting rod, 13 is the roadbed plate, 14 is the moving guide rail, 2 is the shield assembly shaft, 21 is the side wall of the shield assembly shaft, 22 is the central partition wall, 23 is the trailer track, 231 is the guide rail support platform, 24 is the side wall of the horizontal section, 3 is the shield trailer, 31 is the front trailer, 311 is the front trailer flange, 32 is the rear trailer, 321 is the rear trailer flange, 33 is the shield trailer section, and 4 is the laser pointer. Detailed Implementation

[0027] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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 limitations on this application.

[0028] To better understand the technical solution of this application, the above technical solution will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] This example discloses a method for the underground translation of a tunnel boring machine trailer. (See also...) Figure 1 The modular vehicle 11 is used as the underground mobile platform, including the following steps: (1) The height-adjustable modular vehicle 11 is hoisted to the bottom of the shield assembly shaft 2, and a movable guide rail 14 is correspondingly installed at the top of the modular vehicle 11 as a movable platform 1. The movable platform 1 includes at least two modular vehicles 11 rigidly connected by connectors, and a roadbed plate 13 fixedly installed on the top of the modular vehicle for mounting the movable guide rail 14. In this example, the connector is a connecting rod 12 made of flanges machined according to the positioning holes on the side of the modular vehicle 11 and welded with profiles. The flange is a steel plate with a width of 310 mm, a length of 600 mm, and a thickness of 20 mm, and the welded profile is a 200-type steel with a length of 2.16 m. For assembling the movable platform 1, see [link to assembly instructions]. Figure 2Eight connecting rods 12 are symmetrically fixed to the threaded holes on both sides of one modular vehicle 11 using bolts. Then, two more modular vehicles 11 are slowly moved parallel to each other from both sides of the already fixed modular vehicle 11, until their threaded holes align with the threaded holes of the connecting rods. They are then tightened with bolts, connecting the three modular vehicles 11 into a single unit with synchronized movement and no relative deviation. Next, two 6m long, 2.5m wide, and 0.28m high roadbed plates 13 are positioned on the top of the three modular vehicles 11 along two sides perpendicular to the modular vehicle 11, forming a 12m long shield trailer sliding platform. Two parallel 12.1m long 40*120mm moving guide rails 14 are welded to the centerline of the upper surface of the roadbed plate 13. The track gauge of the moving guide rails 14 matches the wheelbase of the shield trailer section 33.

[0030] The structure of the shield assembly shaft 2 is as follows Figure 3 As shown, the shield assembly shaft includes the four sides of the shield assembly shaft sidewall 21, the central partition wall 22 running horizontally through the middle of the shield assembly shaft sidewall 21, a horizontal section connected to the bottom of the shield assembly shaft 2, a horizontal section track 23 laid on the horizontal section, and a horizontal section sidewall 24. The transparency of the horizontal section sidewall 24 is reduced in some schematic diagrams.

[0031] Modular vehicle 11 was chosen because its wheels possess exceptional 360° rotation steering capability, allowing the mobile platform 1 to be more flexible when transporting the tunnel boring machine trailer section 33, preventing it from being hindered by narrow terrain. Secondly, the suspension system of each axle or wheel assembly of modular vehicle 11 is controlled by an independent hydraulic cylinder, enabling precise lifting and lowering individually or in groups. This allows the mobile platform 1 to not only move freely at the bottom of the tunnel boring machine assembly shaft 2 but also to have adjustable height, providing an additional adjustable dimension compared to other transport equipment. The selection of three modular vehicles was based on calculations of the overall dimensions of the tunnel boring machine trailer section 33 and the dimensions of the shaft opening of the tunnel boring machine assembly shaft 2. The selected modular vehicles 11 should ensure no interference with the shaft opening and balanced force distribution when carrying the tunnel boring machine trailer section 33.

[0032] (2) Pre-assemble the shield trailer section 33 on the ground, and simultaneously move the mobile platform 1 to the hoisting shaft 2 of the shield trailer section 33. Pre-assemble the shield trailer section 33 on the ground section by section in front-to-back order, and simultaneously move the mobile platform 1 to the corresponding hoisting position. The shield trailer section 33 is pre-assembled into multiple individual shield trailers on the ground to facilitate hoisting to the bottom of the shield assembly shaft 2; after the mobile platform 1 is assembled, move it to the hoisting shaft 1 of the shield trailer. Before the shield trailer section 33 is hoisted, adjust the mobile platform 1 to the highest height within the adjustment range of the mobile guide rail 14. Although the modular vehicle 11 has the function of keeping its height unchanged when heavy objects are placed on it, its height will still have a relatively small error. In order to prevent the height of the moving guide rail 14 from dropping due to the placement of heavy objects on the moving platform 1, and to make the lower plane of the moving guide rail 14 lower than the support platform, and in order to facilitate the docking of the moving guide rail 14 with the horizontal section track 23, the height of the modular vehicle 11 should be raised before docking with the shield trailer section 33.

[0033] (3) Lower the assembled shield tunneling trailer section 33 into the shaft and place it onto the corresponding moving guide rail 14. Lower the entire shield tunneling trailer section 33 into the shaft. A laser source is installed at the bottom of the shield tunneling trailer section 33 to guide its alignment with the moving platform 1. Place the shield tunneling trailer section 33 on the moving guide rail 14 of the moving platform 1 and take anti-slip measures. In this example, a laser pointer is used as the laser source. See [link to documentation]. Figure 4 When a shield trailer section 33 is lowered into the shaft as a whole, a laser pointer is installed next to the wheels of the trailer and a vertically downward visible optical guide line is projected. The staff adjusts the position of the shield trailer section 33 according to the position illuminated by the guide line to make it easier to align the wheels of the shield trailer section 33 with the moving guide rail 14. After aligning the wheels of the front trailer 31 with the moving guide rail 14 and placing the front trailer 31 on the moving platform 1, four wheel stoppers are placed at the front and rear ends of both sides of the shield trailer section 33 to prevent the shield trailer section 33 from slipping.

[0034] (4) Adjust the mobile platform 1 until the mobile guide rail 14 is collinear with the trailer track 23 inside the well. After adjusting the wheel orientation of the mobile platform 1, control the mobile platform 1 to move until the mobile guide rail 14 contacts the trailer track 23. A laser source is installed in front of the trailer track 23 to guide the mobile platform 1 to align with the trailer track 23. The trailer track 23 has a guide rail support platform 231 at its end, and the mobile guide rail 14 extends from the mobile platform 1. After the corresponding extended end of the mobile guide rail 14 moves to a position above the guide rail support platform 231, adjust the mobile platform 1 so that the height of the mobile guide rail 14 gradually decreases until it contacts the guide rail support platform 231. See Figure 5Laser pointers are installed in front of the two rails of the trailer track 23, projecting a visible optical guide line along the track direction. The moving platform 1 is then moved perpendicular to the trailer track 23 until the laser beam falls directly below the moving guide rail 14, i.e., the projection of the moving platform 1 is collinear with the trailer track 23. At this point, the wheels of the module vehicle 11 are rotated to face the trailer track 23, changing the direction of movement of the moving platform 1 towards the trailer track 23. The module vehicle 11 is then moved until the moving guide rail 14 makes contact with the trailer track 23. (See also...) Figure 6 Because the mobile platform 1 moves towards the horizontal section track 23 when it is far from it, the correspondence between the mobile platform 1 and the horizontal section track 23 is not very precise. Therefore, after the mobile guide rail 14 makes contact with the trailer track 23, the degrees of freedom of the mobile platform 1 should be adjusted, and the mobile guide rail 14 on the mobile platform 1 should be moved directly above the guide rail support platform 231. Then, the height of the mobile platform 1 should be lowered so that the part of the mobile guide rail 14 extending beyond the road plate 13 is placed on the guide rail support platform 231 of the horizontal section track 23. At this point, the mobile guide rail 14 and the trailer track 23 are successfully docked.

[0035] (5) The mobile shield tunneling trailer section 33 reaches the horizontal section of the tunnel. For example... Figure 7 As shown, the shield trailer section 33 is moved along the docked moving guide rail 14 and the horizontal section track 23 onto the horizontal section track 23.

[0036] (6) Repeat steps (2) to (5) until the shield trailer 3 is assembled. Repeat steps 2 to 5 so that the next shield trailer section 33, after pre-assembly, is placed on the moving platform 1 with the assistance of a laser pointer. After the wheel stop is installed, it is docked onto the horizontal track 23 under the drive of the moving platform 1. Figure 8 As shown, the rear trailer 32 is moved to mate with the front trailer 31, and bolts are used to fasten the front trailer flange 311 and the rear trailer flange 321, making the rear trailer 32 and the front trailer 31 a single unit. Figure 9 As shown, the shield trailer 3 is assembled as a whole and moved to the horizontal section of the tunnel. After several repetitions, each section of the shield trailer 3 is assembled in sequence and moved to the horizontal section track 23, and the shield trailer 3 is completed in translational assembly.

[0037] Although some preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0038] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application is also intended to include such modifications and variations.

Claims

1. A method for underground translation of a tunnel boring machine trailer, characterized in that, Includes the following steps: (1) The height-adjustable modular vehicle is hoisted to the bottom of the shield assembly shaft, and a movable guide rail is set at the top of the modular vehicle as a movable platform; (2) Pre-assemble the shield trailer section at ground level, and move the mobile platform to the shield trailer hoisting wellhead; (3) The assembled shield trailer section is lowered into the well and placed on the corresponding moving guide rail; (4) Adjust the mobile platform until the mobile guide rail is collinear with the trailer track in the well. After adjusting the wheel orientation of the mobile platform, control the mobile platform to move until the mobile guide rail and the trailer track are in contact. (5) Move the shield trailer section to the trailer track; (6) Repeat steps (2) to (5) to lower each of the shield trailer sections into the well and connect them in the order from front to back.

2. The method for underground translation of a shield tunneling trailer according to claim 1, characterized in that, In step (1), the mobile platform includes at least two modular vehicles rigidly connected by connectors, and a road plate fixedly mounted on the top of the modular vehicles for mounting the mobile guide rail.

3. The method for underground translation of a tunnel boring machine trailer according to claim 1, characterized in that, In step (1), the track gauge of the moving guide rail is matched with the wheel track of the shield trailer section.

4. The method for underground translation of a tunnel boring machine trailer according to claim 1, characterized in that, In step (2), before the shield trailer section is lifted, the mobile platform is adjusted to the highest height within the adjustment range of the mobile guide rail.

5. The method for underground translation of a tunnel boring machine trailer according to claim 3 or 4, characterized in that, In step (4), the end of the horizontal section of the track is provided with a guide rail support platform and the corresponding end of the movable guide rail extends out of the movable platform by a certain length; after the extended end of the movable guide rail is moved to a position above the guide rail support platform, the movable platform is adjusted so that the height of the movable guide rail is gradually reduced to contact the guide rail support platform.

6. The method for underground translation of a tunnel boring machine trailer according to claim 1, characterized in that, In step (3), the bottom of the shield trailer section is provided with a first laser source for guiding the shield trailer to align with the mobile platform.

7. The method for underground translation of a shield tunneling trailer according to claim 1, characterized in that, In step (3), after the shield trailer section is lowered onto the moving guide rail, anti-slip measures are taken for the shield trailer section.

8. The method for underground translation of a shield tunneling trailer according to claim 1, characterized in that, In step (4), a second laser source is provided at the end of the trailer track to guide the mobile platform to align with the trailer track.

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