Disassembling tool for disassembling a shield machine in a tunnel

Abstract

This application provides a dismantling fixture for dismantling a tunnel boring machine (TBM) inside a tunnel. The fixture includes a main frame and a drive mechanism. The main frame includes two rows of support columns arranged laterally and a top frame fixedly connected to the upper ends of the two rows of support columns. A dismantling space is formed between the two rows of support columns and the top frame. The top frame includes a load-bearing beam for installing a hook. The drive mechanism is mounted on the support columns to drive the main frame to move. Using the dismantling fixture for dismantling a TBM inside a tunnel, the target module to be dismantled from the TBM can be detached from the remaining parts of the TBM, and the target module can be adjusted in angle or direction, making the entire dismantling process more flexible, efficient, and safe.

Description

Technical Field

[0001] This application relates to the field of tunnel boring equipment technology, and in particular to a dismantling tool for dismantling a tunnel boring machine inside a tunnel. Background Technology

[0002] Tunnel boring machines (TBMs) are the most commonly used construction machinery in underground tunnel engineering today, and are widely used in infrastructure construction such as urban water conservancy, hydropower, subways, and highways. In some projects, due to limitations in ground conditions or municipal construction requirements, it is impossible to excavate a recovery well for the TBM. In these cases, the TBM must be disassembled inside the tunnel and transported to the surface. However, because TBMs are relatively large, especially since large cranes cannot be used inside the tunnel, some project teams have attempted to cut the shield inside the tunnel and then use hand-operated hoists to lift the shield back into place. However, this method is difficult to manage in terms of risk, has a long construction period, and low work efficiency.

[0003] In view of this, it is necessary to design a dismantling tool for dismantling tunnel boring machines inside tunnels to solve one of the above problems. Summary of the Invention

[0004] This application provides a dismantling tool for dismantling a tunnel boring machine (TBM) inside a tunnel. The dismantling tool is used in conjunction with a hand-operated hoist to achieve the purpose of dismantling the TBM inside the tunnel.

[0005] To achieve the above objectives, the technical solution provided in this application is as follows:

[0006] This application provides a dismantling fixture for dismantling a tunnel boring machine (TBM) inside a tunnel, the dismantling fixture comprising:

[0007] The main frame includes two rows of support columns arranged in a horizontal direction and a top frame fixedly connected to the upper ends of the two rows of support columns. A disassembly space is formed between the two rows of support columns and the top frame. The top frame includes a load-bearing beam for installing hooks.

[0008] A drive mechanism, fixed to the support column, drives the main frame to move.

[0009] Furthermore, each column of support columns includes a first support column and a second support column arranged along the front-rear direction of the tunnel boring machine. The main frame also includes a connecting beam connecting the first support column and the second support column, and the length of the connecting beam is 2 meters to 4 meters.

[0010] Furthermore, the top frame includes a pair of horizontal beams extending laterally and a pair of inclined beams fixedly connecting the horizontal beams and the support column. The load-bearing beams include a first load-bearing beam fixedly connecting the pair of horizontal beams and a second load-bearing beam fixedly connecting the pair of inclined beams. The first and second load-bearing beams extend in the same direction as the connecting beams.

[0011] Furthermore, there are two first load-bearing beams, and the load-bearing beams also include a third load-bearing beam that is fixedly connected to the two first load-bearing beams. The length of the third load-bearing beam is greater than half the length of the crossbeam.

[0012] Furthermore, the angle between the inclined beam and the supporting column is 30° to 60°.

[0013] Furthermore, the vertical downward projection length of the inclined beam is no greater than half the length of the crossbeam, and the lateral projection height of the inclined beam is no greater than half the total height of the support column and the drive mechanism.

[0014] Furthermore, the main frame is welded from H-beams, each H-beam including a web and flanges connected to both ends of the web, the width of which is not less than 400mm.

[0015] Furthermore, the main frame also includes a sealing plate connected to the end of the flange plate, the sealing plate having a thickness of 8mm-12mm.

[0016] Furthermore, the distance between the two rows of support columns is 10 to 12 meters, and the height of the disassembly space is 8 to 11 meters.

[0017] Furthermore, the drive mechanism includes a wheel connected to the lower end of the support column and a motor that drives the wheel to move.

[0018] Compared with the prior art, the beneficial effects of this application are as follows: by using the dismantling tool for dismantling a tunnel boring machine in the tunnel, the target module to be dismantled from the tunnel boring machine is separated from the remaining parts of the tunnel boring machine, and the target module is assisted in adjusting its angle or direction, while making the whole dismantling process more flexible, efficient and safe. Attached Figure Description

[0019] Figure 1 This is a front view structural schematic diagram of a dismantling tool according to an embodiment of the dismantling tool for dismantling a tunnel boring machine in the present application.

[0020] Figure 2 yes Figure 1 A side view of the disassembly tooling.

[0021] Figure 3 yes Figure 1 A top view of the disassembly tooling.

[0022] Figure 4 yes Figure 3 A schematic diagram of the main structure of the dismantling tool located inside the dismantling hole.

[0023] Among them, 1-dismantling tooling, 10-main frame, 11-support column, 111-first support column, 112-second support column, 12-top frame, 121-load-bearing beam, 1211-first load-bearing beam, 1212-second load-bearing beam, 1213-third load-bearing beam, 1214-fourth load-bearing beam, 122-crossbeam, 123-inclined beam, 13-dismantling space, 14-connecting beam, 20-drive mechanism, 21-wheel, 3-tunnel boring machine, 100-dismantling chamber. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application.

[0025] It should be noted that the terms "upper" and "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the purpose of simplifying the description of this application and do not indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this application. Specifically, in this application, the direction facing the ground is referred to as "lower," and conversely, the direction away from the ground is referred to as "upper." Other descriptions of orientation are defined based on "upper" and "lower."

[0026] In the various figures of this application, for ease of illustration, certain dimensions of structures or parts may be exaggerated relative to other structural parts; therefore, they are only used to illustrate the basic structure of the subject matter of this application.

[0027] Generally, a tunnel boring machine (TBM) consists of major components such as a cutterhead, main drive, front and middle shields, tail shield, ring body, assembly machine, auger conveyor, connecting bridge, and rear auxiliary trolley. Disassembling the TBM inside the tunnel mainly involves disassembling these major components sequentially. Due to the large size and weight of these components, some of the larger ones are further disassembled. All components and the disassembled parts are grouped into target modules, which are transported one by one to the starting shaft using transport vehicles, and then hoisted to the ground to complete the disassembly process. Figure 4 As shown, due to the limited space in the dismantling chamber 100, during the dismantling process, the dismantling tool 1 is used in conjunction with the hook to lift the target module away from the remaining parts of the shield machine 3. During the lifting process, the target module is assisted in adjusting its angle or direction, so that it can be placed on the transport vehicle and transported to the starting shaft.

[0028] In this application, for ease of description and understanding, the length direction of the tunnel boring machine 3 is defined as front and back, that is, the position of the cutterhead relative to the tunnel boring machine 3 is defined as front, the position of the matching trolley relative to the tunnel boring machine 3 is defined as back, and the width direction of the tunnel boring machine 3 is defined as lateral.

[0029] like Figures 1 to 3 As shown, the dismantling fixture 1 includes a main frame 10 for lifting the target module and a drive mechanism 20 for driving the main frame 10 to move. The drive mechanism 20 drives the main frame 10 and thus the target module to move slowly, which can detach the target module from the remaining parts of the tunnel boring machine 3.

[0030] like Figure 2 As shown, the main frame 10 includes two rows of support columns 11 arranged laterally, and a top frame 12 fixedly connected to the upper ends of the two rows of support columns 11. A disassembly space 13 is formed between the two rows of support columns 11 and the top frame 12. The top frame 12 includes a load-bearing beam 121 for installing the hook 2. The hook 2, together with the lifting rope, connects the load-bearing beam 121 and the target module. In this application, the hook 2 is generally selected as a hand chain hoist, and the specifications and quantity of the hand chain hoist are set according to the weight of the target module.

[0031] The distance between the two rows of support columns 11 is 10 to 12 meters. Preferably, the distance between the two rows of support columns 11 is 11 meters, so that the disassembly space 13 between the two rows of support columns 11 can accommodate the tunnel boring machine 3 in the lateral direction. When the tunnel boring machine 3 is pushed to the predetermined position, the two rows of support columns 11 are located on both sides of the tunnel boring machine 3, and there is also an operable space reserved between the support columns 11 and the tunnel boring machine 3.

[0032] Each column of support columns 11 includes a first support column 111 and a second support column 112 arranged in the front-back direction. The distance between the first support column 111 and the second support column 112 is 2 to 4 meters, so that the disassembly tool 1 can cover a large area in the front-back direction, which is convenient for disassembling large parts.

[0033] like Figure 3 As shown, the top frame 12 includes a pair of horizontal beams 122 extending laterally and a pair of inclined beams 123 fixedly connecting the horizontal beams 122 and the support column 11. The inclined beams 123 are provided to match the shape of the dismantling chamber 100 and the tunnel boring machine 3, and to strengthen the structural strength of the dismantling fixture 1. When the target module is hoisted onto the load-bearing beam 121, the inclined beams 122 can decompose the load-bearing beam 121 along the lateral and vertical directions, thereby improving the stability of the entire hoisting process.

[0034] The angle between the inclined beam 122 and the support column 11 is 30° to 60°. Preferably, the angle between the inclined beam 122 and the support column 11 is 45°. At this angle, the structure of the dismantling tool 1 is the most stable and conforms to the design that the top of the dismantling chamber 100 is arc-shaped.

[0035] In this application, the vertical downward projection length of the inclined beam 123 is not greater than half the length of the crossbeam 122, and the lateral projection height of the inclined beam 123 is not greater than half the total height of the support column 11 and the drive mechanism 20. The size of the inclined beam 123 is within a certain range to ensure the structural strength and stability of the entire disassembly fixture 100.

[0036] As a preferred embodiment of this application, the load-bearing beam 121 includes a first load-bearing beam 1211 fixedly connected to a pair of cross beams 122 and a second load-bearing beam 1212 fixedly connected to a pair of inclined beams 122. Both the first load-bearing beam 1211 and the second load-bearing beam 1212 extend in the front-back direction, which can be used to install the hook 2 and improve the stability of the dismantling worker 1.

[0037] Preferably, there are two first load-bearing beams 1211, which are connected laterally between a pair of crossbeams 122. The hook 2 can be suspended on one or both first load-bearing beams 1211 as needed.

[0038] The ratio of the distance between the two first load-bearing beams 1211 to the length of the crossbeam 122 is one-third to one-half, maintaining the balance of the entire dismantling fixture 1 during the hoisting process.

[0039] Preferably, the second load-bearing beam 1212 is fixed at the middle position of the inclined beam 123 along its length direction.

[0040] It is understandable that the lengths of the first load-bearing beam 1211 and the second load-bearing beam 1212 are the same as the distance between the first support column 111 and the second support column 112.

[0041] As another preferred embodiment of this application, the load-bearing beam 121 further includes a third load-bearing beam 1213 that is fixedly connected to the two first load-bearing beams 1211. The third load-bearing beam 1213 extends laterally and is greater than half the length of the crossbeam 122. This can further improve the structural strength of the dismantling fixture 1 and increase the number of hook installation points, thereby increasing the flexibility of the tunnel boring machine 3 dismantling process.

[0042] The load-bearing beam 121 also includes a fourth load-bearing beam 1214 that is fixedly connected to each of two adjacent support columns 11. The fourth load-bearing beam 1214 can, on the one hand, work with other load-bearing beams to hang the hook 2, and on the other hand, improve the stability of the dismantling fixture 1.

[0043] In another preferred embodiment of this application, the top frame 12 is a horizontal plate connected to the upper ends of the two rows of support columns 11. The load-bearing beam 121 is located below the horizontal plate for hanging hooks, which can also achieve the purpose of lifting the target module away, and is also within the protection scope of this application.

[0044] The dismantling space 13 is formed between the support column 11, the crossbeam 122, and the inclined beam 123. The height of the dismantling space 13 is 8 to 11 meters, that is, the distance between the crossbeam 122 and the bottom of the drive mechanism 20 is 8 to 11 meters, to meet the height requirements of the tunnel boring machine 3. Preferably, the height of the dismantling space 13 is 9.5 meters.

[0045] In another preferred embodiment of this application, the main frame 10 further includes a connecting beam 14 connecting two adjacent support columns 11 in each column. The connecting beam 14 is located below the fourth load-bearing beam 1214, which can further increase the structural strength of the disassembly tool 1. In this embodiment, the connecting beam 14 extends in the same direction as the first load-bearing beam 1211 and the second load-bearing beam 1212.

[0046] In this embodiment, the length of the connecting beam 14 is 2 to 4 meters, preferably 3 meters, so that the disassembly fixture 1 can cover a large area, and the operator can walk on the connecting beam 14 to facilitate the disassembly process.

[0047] In this application, the main frame 10 is welded from H-beams, which gives the entire main frame 10 greater strength and rigidity while reducing its own weight. Specifically, the H-beam includes a web and flanges connected to both ends of the web. The width of the web and the flanges is not less than 400mm, which gives the disassembly tool 1 excellent mechanical properties and load-bearing capacity.

[0048] Preferably, the main frame 10 further includes a sealing plate connected to the end of the flange plate. The design of the sealing plate can increase the structural stability and load-bearing capacity of the disassembly tool 1 and prevent the H-beam from twisting under stress. Preferably, the thickness of the sealing plate is 8mm-12mm.

[0049] Furthermore, the drive mechanism 20 is fixed to the support column 11 to drive the main frame 10 to move in the front-back direction. In this embodiment, the drive mechanism 20 is fixed to the lower end of the support column 11 and moves in the front-back direction along the track at the bottom of the dismantling chamber 100.

[0050] Specifically, the drive mechanism 20 includes a wheel 21 connected to the lower end of the support column 11 and a motor that drives the wheel to move. The motor is a 6-pole 11kW motor, which enables the disassembly tool 1 to have sufficient driving force to lift the target module away.

[0051] In summary, the dismantling tool 1 for dismantling a tunnel boring machine 3 in this application detaches the target module from the remaining parts of the tunnel boring machine 3 and assists in adjusting the angle or direction of the target module, while making the entire dismantling process more flexible, efficient and safe.

[0052] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0053] The detailed descriptions listed above are merely specific illustrations of feasible embodiments of this application and are not intended to limit the scope of protection of this application. All equivalent embodiments or modifications made without departing from the spirit of the art of this application should be included within the scope of protection of this application.

Claims

1. A dismantling tool for dismantling a tunnel boring machine inside a tunnel, characterized in that, include: The main frame includes two rows of support columns arranged in a horizontal direction and a top frame fixedly connected to the upper ends of the two rows of support columns. A disassembly space is formed between the two rows of support columns and the top frame. The top frame includes a load-bearing beam for installing hooks. A drive mechanism, fixed to the support column, drives the main frame to move.

2. The dismantling fixture for dismantling a tunnel boring machine as described in claim 1, characterized in that, Each column of support columns includes a first support column and a second support column arranged along the front-rear direction of the tunnel boring machine. The main frame also includes a connecting beam connecting the first support column and the second support column, and the length of the connecting beam is 2 meters to 4 meters.

3. The dismantling fixture for dismantling a tunnel boring machine as described in claim 2, characterized in that, The top frame includes a pair of horizontal beams extending laterally and a pair of inclined beams fixedly connecting the horizontal beams and the support columns. The load-bearing beams include a first load-bearing beam fixedly connecting the pair of horizontal beams and a second load-bearing beam fixedly connecting the pair of inclined beams. The first and second load-bearing beams extend in the same direction as the connecting beams.

4. The dismantling fixture for dismantling a tunnel boring machine as described in claim 3, characterized in that, The first load-bearing beam has two parts, and the load-bearing beam also includes a third load-bearing beam that is fixedly connected to the two first load-bearing beams. The length of the third load-bearing beam is greater than half the length of the crossbeam.

5. The dismantling fixture for dismantling a tunnel boring machine as described in claim 3, characterized in that, The angle between the inclined beam and the supporting column is 30° to 60°.

6. The dismantling fixture for dismantling a tunnel boring machine as described in claim 3, characterized in that, The vertical downward projection length of the inclined beam is no greater than half the length of the crossbeam, and the lateral projection height of the inclined beam is no greater than half the total height of the support column and the drive mechanism.

7. The dismantling fixture for dismantling a tunnel boring machine as described in claim 1, characterized in that, The main frame is welded from H-beams. Each H-beam includes a web and flanges connected to both ends of the web. The width of both the web and the flanges is not less than 400 mm.

8. The dismantling fixture for dismantling a tunnel boring machine as described in claim 7, characterized in that, The main frame also includes a sealing plate connected to the end of the flange, the sealing plate having a thickness of 8mm-12mm.

9. The dismantling fixture for dismantling a tunnel boring machine as described in claim 1, characterized in that, The distance between the two rows of support columns is 10 to 12 meters, and the height of the disassembly space is 8 to 11 meters.

10. The dismantling fixture for dismantling a tunnel boring machine as described in any one of claims 1 to 9, characterized in that, The drive mechanism includes a wheel connected to the lower end of the support column and a motor that drives the wheel to move.

Images