TBM tunnel dismounting device

Abstract

The application discloses a TBM in-hole dismounting device, which comprises a pair of first vertical columns, a first cross beam connected between the first vertical columns, a first through hole arranged on the first cross beam, a first winch arranged on the top of the first cross beam, a rope of the first winch connected with a first hoist after passing through the first through hole, a pair of second vertical columns arranged opposite to the pair of first vertical columns, the top of the second vertical column being lower than the top of the first vertical column, a horizontal first longitudinal beam arranged on the top of the second vertical column, the first longitudinal beam being connected with the first vertical column, a second cross beam arranged between the top of the two first longitudinal beams, a second through hole arranged on the second cross beam, a second winch arranged on the top of the second cross beam, and a rope of the second winch connected with a second hoist after passing through the second through hole. The application can independently complete the turnover and flattening of TBM parts, saves the use cost of a rented folding boom crane, and reduces the difficulty of dismounting construction.

Description

Technical Field

[0001] This invention relates to the field of tunnel boring machine (TBM) technology. More specifically, this invention relates to a TBM in-tunnel dismantling device. Background Technology

[0002] Currently, TBMs are increasingly used in tunnel construction due to their speed, efficiency, environmental friendliness, and safety. After tunnel breakthrough, TBMs need to be disassembled and removed from the tunnel for subsequent construction work. Existing methods for disassembling TBMs typically involve widening the tunnel to create a disassembly chamber, deploying large lifting equipment within the chamber to assist in the disassembly. Disassembly also requires the cooperation of a truck-mounted folding boom crane and the large lifting equipment to flip and flatten the TBM components. This not only increases the cost of using the truck-mounted folding boom crane but also increases the difficulty of disassembly due to the requirement for its coordinated use with the large lifting equipment. Summary of the Invention

[0003] One object of the present invention is to solve at least the above-mentioned problems and to provide at least the advantages that will be described later.

[0004] Another objective of this invention is to provide a TBM in-tunnel dismantling device that can independently flip and flatten TBM parts, saving the cost of renting a folding boom crane and reducing the difficulty of dismantling operations.

[0005] To achieve these objectives and other advantages according to the present invention, a TBM in-cavity dismantling device is provided, comprising:

[0006] A pair of first columns, with a first crossbeam connecting the top of the pair of first columns. The first crossbeam has a first through hole that extends vertically through it. The first through hole is arranged along the length of the first crossbeam. The top of the first crossbeam is also provided with a first winch that can move along the length of the first crossbeam. The rope on the first winch passes through the first through hole. The lower end of the rope on the first winch is provided with a first hoist.

[0007] A pair of second columns are arranged opposite to a pair of first columns. The top of the second column is lower than the top of the first column. Each of the second columns has a horizontal first longitudinal beam at its top. The first longitudinal beam is detachably connected to the first column. A second crossbeam that can move along the length of the first longitudinal beam is arranged between the tops of the two first longitudinal beams. A second through hole that extends vertically through the second crossbeam is arranged along the length of the second crossbeam. A second winch that can move along the length of the second crossbeam is also arranged at the top of the second crossbeam. The rope on the second winch passes through the second through hole. A second hoist is provided at the lower end of the rope on the second winch.

[0008] Preferably, the bottom end of the first column is provided with a first set of wheels, and the bottom end of the second column is provided with a second set of wheels.

[0009] Preferably, a horizontal second longitudinal beam is provided between the lower parts of the first column and the second column closest to it, the second longitudinal beam being fixedly connected to the second column and detachably connected to the first column.

[0010] Preferably, the first longitudinal beam is a box beam, and a first movable beam is provided in the first longitudinal beam. One end of the first movable beam is fixedly connected to the first column, and the other end is movably connected to the interior of the first longitudinal beam. A first electromagnet is provided at the end of the first longitudinal beam near the first column, which is used to attract the first column when the first movable beam is fully inserted into the first longitudinal beam and the first electromagnet is against the first column.

[0011] Preferably, the second longitudinal beam is a box beam, and a second movable beam is provided in the second longitudinal beam. One end of the second movable beam is fixedly connected to the first column, and the other end is movably connected to the interior of the second longitudinal beam. A second electromagnet is provided at the end of the second longitudinal beam near the first column, which is used to attract the first column when the second movable beam is fully inserted into the second longitudinal beam and the second electromagnet is against the first column.

[0012] Preferably, the first column is a box-shaped column, and each pair of first columns has a long strip-shaped third through hole on its opposite sides along the vertical direction. The first column has a first movable block that moves up and down, and a first horizontal screw is provided on the first movable block. The first screw passes through the third through hole. The first hoist has a second screw on its side. The threads on the first screw and the second screw have opposite directions. A hollow connecting rod is detachably threaded between the first screw and the second screw.

[0013] Preferably, a vertical third screw is provided inside the first column, and a threaded hole matching the third screw is provided on the movable block. The movable block is threadedly connected to the third screw. A motor for driving the third screw to rotate is also provided inside the first column, so that the movable block can move up and down.

[0014] The present invention has at least the following beneficial effects: by setting up a first column, a first crossbeam, and a first winch, as well as a second column, a second crossbeam, and a second winch, the upper and lower or front and rear lifting points of TBM components can be suspended by the TBM tunnel dismantling device. The second crossbeam can be moved horizontally on the first longitudinal beam, thus controlling the tilt angle of the TBM components. The rope on the second winch can be lengthened or shortened, thus controlling the height difference of the lifting points on the TBM components. Therefore, the TBM tunnel dismantling device, through the movement of the second crossbeam and the winding and unwinding of the rope on the second winch, can achieve the flipping and flattening of TBM components without the aid of other equipment, which saves the cost of renting a folding boom crane and reduces the difficulty of dismantling construction.

[0015] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0016] Figure 1 This is a side view of the TBM tunnel dismantling device described in this invention.

[0017] Figure 2 This is a front structural diagram of the TBM tunnel dismantling device described in this invention;

[0018] Figure 3 This is a top view of the TBM tunnel dismantling device described in this invention.

[0019] Figure 4 A schematic diagram of the initial state for disassembling the cutterhead using the TBM in-tunnel disassembly device described in this invention;

[0020] Figure 5 A schematic diagram illustrating the process of disassembling the cutterhead using the TBM in-tunnel disassembly device described in this invention;

[0021] Figure 6 A schematic diagram of the initial state of dismantling the inner Kaiyi using the TBM tunnel dismantling device described in this invention;

[0022] Figure 7 A schematic diagram illustrating the process of dismantling the inner tunnel section using the TBM tunnel dismantling device described in this invention;

[0023] Figure 8 This is a schematic diagram of the cross-sectional structure inside the first longitudinal beam of the present invention;

[0024] Figure 9 This is a schematic diagram of the side structure inside the first longitudinal beam of the present invention (rollers omitted);

[0025] Figure 10 This is a schematic diagram of the internal structure of the first column of the present invention. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0027] It should be noted that, unless otherwise specified, the experimental methods described in the following embodiments are all conventional methods, and the reagents and materials described are all commercially available unless otherwise specified. In the description of this invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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 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 limitations on this invention.

[0028] like Figures 1-3 As shown, the present invention provides a TBM (Tunnel Boring Machine) dismantling device, which includes:

[0029] A pair of first columns 1, with a first crossbeam 2 connected between the top of the pair of first columns 1. The first crossbeam 2 is provided with a first through hole in the vertical direction. The first through hole is arranged along the length of the first crossbeam 2. The top of the first crossbeam 2 is also provided with a first winch 3 that can move along the length of the first crossbeam 2. The rope on the first winch 3 passes through the first through hole. The lower end of the rope on the first winch 3 is provided with a first hoist 4.

[0030] Specifically, the top of the first crossbeam 2 and on both sides of the first through hole can be respectively provided along the length of the first crossbeam 2 for the movement of the first winch 3. The bottom of the first winch 3 can be provided with a slipper or wheel set that cooperates with the track. The slipper can be driven by a crawler, and the wheel set can be driven by a motor.

[0031] Specifically, a winch can be installed on the first winch 3, and the height of the first hoist 4 can be controlled by the winch;

[0032] A pair of second columns 5 are arranged opposite to a pair of first columns 1. The top of the second column 5 is lower than the top of the first column 1. Each of the two second columns 5 is provided with a horizontal first longitudinal beam 6 at its top. The first longitudinal beam 6 is detachably connected to the first column 1. A second crossbeam 7 that can move along the length of the first longitudinal beam 6 is provided between the tops of the two first longitudinal beams 6. A second through hole that penetrates vertically is provided on the second crossbeam 7. The second through hole is arranged along the length of the second crossbeam 7. A second winch 8 that can move along the length of the second crossbeam 7 is also provided at the top of the second crossbeam 7. The rope on the second winch 8 passes through the second through hole. A second hoist 9 is provided at the lower end of the rope on the second winch 8.

[0033] Specifically, the first longitudinal beam 6 and the first column 1 can be connected together by bolts. A track can be set on the first longitudinal beam 6 along its length. Slippers or wheel sets that cooperate with the tracks on the two first longitudinal beams 6 can be set at both ends of the bottom of the second crossbeam 7. The driving method of the slippers or wheel sets is the same as that of the first winch 3.

[0034] Specifically, the second winch 8 can move on the second beam 7 in the same manner as the first winch 3.

[0035] like Figures 4-5 As shown below, the following example of disassembling a cutter head 10 illustrates the usage process of the above-mentioned TBM tunnel disassembly device;

[0036] The Luoning pumped storage power station's No. 1 and No. 2 water intake inclined shafts were excavated using TBMs. The No. 1 inclined shaft has an upslope of 36.236° and a TBM excavation length of 914.233m; the No. 2 inclined shaft has an upslope of 38.742° and a TBM excavation length of 859.681m. After the No. 1 water intake inclined shaft was excavated, the complete TBM equipment needed to be transferred to the No. 2 water intake inclined shaft for secondary assembly, stepping, and excavation. After the No. 2 water intake inclined shaft was excavated, the complete TBM equipment needed to be dismantled and transported away.

[0037] Preparations for TBM dismantling include: excavating the dismantling chamber as required and cleaning the interior; hardening the floor inside the dismantling chamber and then installing the TBM dismantling device to meet the dismantling conditions.

[0038] When the TBM bottom shield protrudes 500mm from the excavation face, the machine is stopped. The TBM in-tunnel dismantling device is moved so that the first crossbeam 2 is positioned above the lifting lugs of the lower side panel of the cutterhead 10. The first winch 3 is controlled to extend the rope, allowing the first hoist 4 to lift the lifting lugs of the lower side panel of the cutterhead 10. Two rope loops are suspended using the main lifting lugs of the cutterhead 10. The second crossbeam 7 is controlled to be positioned above the main lifting lugs of the cutterhead 10. The second winch 8 is controlled to extend the rope, allowing the second hoist 9 to lift the two rope loops suspended on the main lifting lugs of the cutterhead 10. Four 50t split jacks are used at the four positioning pin positions connecting the cutterhead 10 to the TBM drive components to assist in detaching the cutterhead 10 from the TBM body. After detachment, the TBM in-tunnel dismantling device is slightly moved towards the exit direction, moving the cutterhead 10 away from the TBM body, so that the entire weight of the cutterhead 10 is borne by the TBM in-tunnel dismantling device. Next, the second crossbeam 7 is moved away from the first crossbeam 2, while the rope of the second winch 8 is slowly lengthened, causing the cutterhead 10 to gradually change from an inclined state to a horizontal state. Finally, the first winch 3 and the second winch 8 are controlled to lengthen their ropes simultaneously, allowing the cutterhead 10 to land smoothly on the chamber floor. The cutterhead 10 is then disassembled and transported out of the chamber by a truck.

[0039] In the above embodiment, by setting up a first column 1, a first crossbeam 2, a first winch 3, a second column 5, a second crossbeam 7, and a second winch 8, the upper and lower or front and rear lifting points of the TBM parts can be suspended by the TBM tunnel dismantling device. The second crossbeam 7 can be moved horizontally on the first longitudinal beam 6, thus controlling the tilt angle of the TBM parts. The rope on the second winch 8 can be lengthened or shortened, thus controlling the height difference of the lifting points on the TBM parts. Therefore, the TBM tunnel dismantling device, through the movement of the second crossbeam 7 and the winding and unwinding of the rope on the second winch 8, can achieve the flipping and flattening of TBM parts without the aid of other equipment, which saves the cost of renting a folding boom crane and reduces the difficulty of dismantling construction.

[0040] like Figures 1-5 As shown, in another embodiment, the first column 1 is provided with a first set of traveling wheels 11 at its bottom end, and the second column 5 is provided with a second set of traveling wheels 12 at its bottom end. Here, the positions of the first column 1 and the second column 5 can be conveniently and quickly controlled via the traveling wheels. Specifically, the traveling wheels can be moved by a motor.

[0041] like Figure 1As shown, in another embodiment, a horizontal second longitudinal beam 13 is provided between the lower parts of the first column 1 and the nearest second column 5. The second longitudinal beam 13 is fixedly connected to the second column 5 and detachably connected to the first column 1. The second longitudinal beam 13 strengthens the connection between the first column 1 and the second column 5, increasing the structural stability of the TBM tunnel dismantling device. Specifically, the second longitudinal beam 13 can be welded or riveted to the second column 5, and the second longitudinal beam 13 can be bolted to the first column 1.

[0042] like Figures 6-9 As shown, in another embodiment, the first longitudinal beam 6 is a box beam, and a first movable beam 14 is provided in the first longitudinal beam 6. One end of the first movable beam 14 is fixedly connected to the first column 1, and the other end is movably connected to the interior of the first longitudinal beam 6. A first electromagnet 16 is provided at the end of the first longitudinal beam 6 near the first column 1, which is used to attract the first column 1 when the first movable beam 14 is fully inserted into the first longitudinal beam 6 and the first electromagnet 16 abuts against the first column 1.

[0043] The second longitudinal beam 13 is a box beam. A second movable beam 15 is provided in the second longitudinal beam 13. One end of the second movable beam 15 is fixedly connected to the first column 1, and the other end is movably connected to the interior of the second longitudinal beam 13. A second electromagnet is provided at the end of the second longitudinal beam 13 near the first column 1, which is used to attract the first column 1 when the second movable beam 15 is fully inserted into the second longitudinal beam 13 and the second electromagnet is against the first column 1.

[0044] Specifically, rollers 17 can be evenly spaced along the length of the outer walls of the first movable beam 14 on all sides, allowing the first movable beam 14 to roll within the first longitudinal beam 6. Simultaneously, a stop block 18 can be provided at the end edge of the first movable beam 14 within the first longitudinal beam 6, located outside the travel path of the rollers 17. A limiting block 19 can also be provided at the exit end of the first longitudinal beam 6 to abut against the stop block, preventing the first movable beam 14 from slipping out of the first longitudinal beam 6. Similarly, the second movable beam 15 and the second longitudinal beam 13 can also adopt the same connection method as the first movable beam 14 and the first longitudinal beam 6.

[0045] like Figures 6-7 As shown below, the process of using the TBM in-tunnel dismantling device described above will be illustrated by the example of the dismantling of the TBM used in the excavation of the No. 1 and No. 2 water diversion inclined shafts of the Luoning Pumped Storage Power Station.

[0046] The TBM is pushed forward until the dismantling device inside the TBM tunnel can smoothly lift the inner Kai-20. The first winch 3 is controlled to extend the rope so that the first hoist 4 can lift the front lifting lug of the inner Kai-20. The second winch 8 is controlled to extend the rope so that the second hoist 9 can lift the third hoist. The hoist sling is then passed around the third hoist so that the front end of the hoist sling can lift the middle lifting lug of the inner Kai-20 and the rear end of the hoist sling can lift the rear lifting lug of the inner Kai-20. The first electromagnet 16 and the second electromagnet are de-energized so that the first longitudinal beam 6 is disconnected from the first column 1 and the second longitudinal beam 13 is disconnected from the first column. Control the second traveling wheel set 12 to keep it stationary, and control the first traveling wheel set 11 to move it forward slowly, so that the first movable beam 14 slowly moves out of the first longitudinal beam 6, and the second movable beam 15 slowly moves out of the second longitudinal beam 13. During the movement of the first traveling wheel set 11, control the first winch 3 to extend the rope slowly so that the inner Kai-20 changes from an inclined state to a horizontal state. Under the traction of the inner Kai-20, the sling gradually becomes equal in length on both sides of the third hoist. Control the first winch 3 and the second winch 8 to land the inner Kai-20 smoothly on the chamber floor. Use pad blocks to lift the rear end of the inner Kai-20, and then transport it out of the chamber by a truck.

[0047] In another embodiment, such as Figure 10 As shown, the first column 1 is a box-shaped column. Each pair of first columns 1 has a long, narrow third through hole on its opposite sides along the vertical direction. The first column 1 has a first movable block 21 that moves up and down. The first movable block 21 has a horizontal first screw 22 that passes through the third through hole. The first hoist 4 has a second screw 23 on its side. The threads on the first screw 22 and the second screw 23 have opposite directions of rotation. A hollow connecting rod 24 is detachably threaded between the first screw 22 and the second screw 23. The inner walls of both ends of the hollow connecting rod 24 are respectively provided with a first internal thread that matches the first screw 22 and a second internal thread that matches the second screw 23. Since the threads on the first screw 22 and the second screw 23 have opposite directions of rotation, both ends can be connected when the hollow connecting rod 24 is screwed.

[0048] In the above embodiment, a hollow connecting rod 24 is provided to connect the first hoist 4 and the first movable block 21. Since the first movable block 21 is limited to moving only in the vertical direction, the first hoist 4 is also restricted to moving in the vertical direction. This can avoid the TBM parts from swinging back and forth and left and right due to the movement of the disassembly device inside the TBM hole when hoisting TBM parts, reduce the change in rope force caused by the swing, and make the hoisting process more stable and safe.

[0049] The same structural design as the first column 1 can be made on the second column 5, so that the second hoist 9 is also restricted to move in the vertical direction, thus avoiding the TBM components from swinging back and forth or left and right.

[0050] In another embodiment, a vertical third screw 25 is provided inside the first column 1, and a threaded hole matching the third screw 25 is provided on the movable block. The movable block is threadedly connected to the third screw 25. A motor 26 for driving the third screw 25 to rotate is also provided inside the first column 1 so that the movable block can move up and down.

[0051] In the above embodiment, by setting the motor 26 to drive the third screw 25 to rotate, the movable block can move up and down and its position can be controlled, which makes it convenient for the staff to stably install the hollow connecting rod 24 between the first screw 22 and the second screw 23. Of course, in the process of controlling the lifting and lowering of the first hoist, it is also necessary to start the motor to drive the movable block to move in coordination with the lifting and lowering of the first hoist.

[0052] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A TBM (Tunnel Boring Machine) dismantling device, characterized in that, include: A pair of first columns, with a first crossbeam connecting the top of the pair of first columns. The first crossbeam has a first through hole that extends vertically through it. The first through hole is arranged along the length of the first crossbeam. The top of the first crossbeam is also provided with a first winch that can move along the length of the first crossbeam. The rope on the first winch passes through the first through hole. The lower end of the rope on the first winch is provided with a first hoist. A pair of second columns are arranged opposite to a pair of first columns. The top of the second column is lower than the top of the first column. Each of the two second columns has a horizontal first longitudinal beam at its top. The first longitudinal beam is detachably connected to the first column. A second crossbeam that can move along the length of the first longitudinal beam is arranged between the tops of the two first longitudinal beams. A second through hole that penetrates vertically is provided on the second crossbeam. The second through hole is arranged along the length of the second crossbeam. A second winch that can move along the length of the second crossbeam is also provided on the top of the second crossbeam. The rope on the second winch passes through the second through hole. A second hoist is provided at the lower end of the rope on the second winch. A horizontal second longitudinal beam is provided between the lower parts of the first column and the second column closest to it. The second longitudinal beam is fixedly connected to the second column and detachably connected to the first column. The first longitudinal beam is a box girder, and a first movable beam is provided in the first longitudinal beam. One end of the first movable beam is fixedly connected to the first column, and the other end is movably connected to the interior of the first longitudinal beam. A first electromagnet is provided at the end of the first longitudinal beam near the first column, which is used to attract the first column when the first movable beam is fully inserted into the first longitudinal beam and the first electromagnet is against the first column.

2. The TBM tunnel dismantling device as described in claim 1, characterized in that, The first column is provided with a first set of wheels at its bottom end, and the second column is provided with a second set of wheels at its bottom end.

3. The TBM tunnel dismantling device as described in claim 1, characterized in that, The second longitudinal beam is a box girder. A second movable beam is provided in the second longitudinal beam. One end of the second movable beam is fixedly connected to the first column, and the other end is movably connected to the interior of the second longitudinal beam. A second electromagnet is provided at the end of the second longitudinal beam near the first column, which is used to attract the first column when the second movable beam is fully inserted into the second longitudinal beam and the second electromagnet is against the first column.

4. The TBM tunnel dismantling device as described in claim 1, characterized in that, The first column is a box-shaped column. Each pair of first columns has a long strip-shaped third through hole on its opposite sides along the vertical direction. The first column has a first movable block that moves up and down. The first movable block has a horizontal first screw that passes through the third through hole. The first hoist has a second screw on its side. The threads on the first screw and the second screw have opposite directions. A hollow connecting rod is detachably threaded between the first screw and the second screw.

5. The TBM tunnel dismantling device as described in claim 4, characterized in that, The first column is provided with a vertical third screw, and the movable block is provided with a threaded hole that matches the third screw. The movable block is threadedly connected to the third screw. The first column is also provided with a motor for driving the third screw to rotate, so that the movable block can move up and down.

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