Construction device and method for strengthening foundation of micro steel pipe pile in large-section loess bias-loaded tunnel

Abstract

The present invention discloses a micro steel pipe pile foundation reinforcement construction device and method for a large-section loess bias-loaded tunnel, and belongs to the technical field of tunnel construction. The present invention includes a tunnel body and a loess ground surface, wherein the inner lower surface of the tunnel body is provided with a loess ground surface; the upper surface of the loess ground surface is provided with a track plate, and a drive control box is provided above the track plate, and a drive motor is fixedly connected to the inner upper surface of the drive control box. The present invention uses an extraction pump provided inside the drainage box to pump the concrete inside the storage box into the drainage box, and finally flows to the plug-in port through a discharge pipe. During filling, the rotating block and baffle are provided to control the rotation and vibration of the vibrating rod, so as to achieve the effect of vibrating the concrete in the steel pipe pile body during filling, thereby preventing a large number of bubbles from being generated inside during filling, thereby preventing the foundation from becoming unstable after the filling is completed.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel construction, and more particularly to a construction device and method for reinforcing a foundation of a large-section loess bias-loaded tunnel using micro steel pipe piles. Background Art

[0002] With the rapid development of my country's transportation infrastructure, loess strata are widely distributed in the western region. As the transportation network continues to improve, more and more tunnels need to be built in loess strata. Since the geology of loess strata is relatively soft, steel pipe piles are used to reinforce the foundation during construction before tunnel construction can be carried out.

[0003] In current tunnel construction, when workers fix steel pipe piles on the ground, they need to pour concrete into the steel pipe piles. When pouring concrete, workers need to use vibrating rods to remove bubbles in the concrete, which greatly increases the time of tunnel development. When a large number of steel pipe piles are laid, they need to drag cement pipes one by one to fill them, which greatly reduces the work efficiency of workers. Summary of the Invention

[0004] In response to the defects and shortcomings of the existing technology, the present invention provides a construction device and method for reinforcing the foundation of a large-section loess bias-loaded tunnel with micro-steel pipe piles. The present invention uses an extraction pump arranged inside the drainage box to pump the concrete inside the storage box into the drainage box, and finally flows it to the plug interface through a discharge pipe. During filling, the rotation and vibration of the vibrating rod are controlled by the provided rotating block and baffle, so as to achieve the effect of vibrating the concrete in the steel pipe pile body during filling, thereby preventing a large number of bubbles from being generated inside during filling, thereby preventing the foundation from becoming unstable when the filling is completed.

[0005] In order to achieve the above object, the technical solution provided by the present invention is:

[0006] The invention provides a large-section loess bias-loaded tunnel micro-steel pipe pile foundation reinforcement construction device, comprising a tunnel body and a loess ground surface, wherein the inner lower surface of the tunnel body is provided with a loess ground surface;

[0007] A track plate is provided on the upper surface of the loess ground, a drive control box is provided above the track plate, two rotating shafts are provided inside the drive control box, both ends of the two rotating shafts extend to the outside of the drive control box, and both ends of the two rotating shafts are fixedly connected to moving wheels, and the multiple moving wheels are respectively in contact with the upper surface of the track plate;

[0008] The inner upper surface of the drive control box is fixedly connected to drive motor 1, the output shaft of drive motor 1 is connected to bevel gear 1, the outer side wall of the rotating shaft located in front of the drive control box is fixedly connected to bevel gear 2, and bevel gear 2 is meshed with bevel gear 1.

[0009] Furthermore, a plurality of steel pipe pile bodies are arranged above the loess ground, and the bottom ends of the steel pipe pile bodies extend to the inside of the loess ground.

[0010] Furthermore, the upper surface of the drive control box is fixedly connected to the operating box, the interior of the operating box is provided with a buffer mechanism, the upper surface of the buffer mechanism is provided with a turntable 1, the upper surface of the turntable 1 is fixedly connected to the support platform, and the upper surface of the support platform extends above the operating box;

[0011] The left side of the upper surface of the support platform is rotatably connected to the support arm, and the right side of the upper surface of the support platform is rotatably connected to the telescopic rod 1, and the top end of the telescopic rod 1 is movably connected to the support arm;

[0012] The top end of the support arm is rotatably connected to a connecting arm, a second telescopic rod is movably connected between the lower surface of the connecting arm and the support arm, and a drainage box is provided at the left end of the connecting arm.

[0013] Furthermore, the upper surface of the operating box is fixedly connected to a storage box, the upper surface of the storage box is fixedly connected to a motor box, the inner side of the motor box is fixedly connected to a second drive motor, and the top end of the output shaft of the second drive motor is movably connected to the inner wall of the motor box;

[0014] The outer side wall of the output shaft of the driving motor 2 is fixedly connected to the turntable 2, the inner upper surface of the motor box is rotatably connected to the hollow column via the rotating shaft, the outer side wall of the hollow column is fixedly connected to the turntable 3, the outer side wall of the turntable 3 and the outer side wall of the turntable 2 are jointly connected by a belt transmission, and the lower surface of the hollow column is fixedly connected to the stirring rod;

[0015] The bottom end of the stirring rod extends to the interior of the storage box, an addition port is opened on the upper right side of the storage box, and a drainage pipe is provided at the upper end of the storage box;

[0016] One end of the drainage pipe passes through the hollow column and the stirring rod and extends to the bottom of the inner side of the storage box and is connected with the storage box; the end of the drainage pipe away from the storage box is connected with the drainage box.

[0017] Furthermore, an extraction pump is fixedly connected to the inner upper surface of the drainage box, the right side of the extraction pump is connected to the drainage pipe, and a discharge pipe is fixedly connected to the inner lower surface of the drainage box;

[0018] A rotating rod 1 is provided inside the discharge pipe, and both ends of the rotating rod 1 extend to both sides of the discharge pipe and are movably connected to the inner wall of the drainage box; a bevel gear 3 is provided on the rod body of the rotating rod 1;

[0019] The inner upper surface of the drainage box is rotatably connected to a rotating rod 2 via a rotating shaft, and the outer side wall of the rotating rod 2 is fixedly connected to a bevel gear 4, which is meshed with the bevel gear 3;

[0020] The lower surface of the second rotating rod extends to the bottom of the drainage box and is fixedly connected to a vibrating rod. The outer wall of the first rotating rod is located inside the discharge pipe and is fixedly connected to a rotating block. The outer wall of the rotating block is fixedly connected to a plurality of baffles.

[0021] The lower surface of the drainage box is fixedly connected with a fixing block, the lower surface of the fixing block is fixedly connected with an insertion port, and the insertion port is communicated with the discharge pipe.

[0022] Furthermore, the vibrating rod is an extendable pipe.

[0023] Furthermore, the buffer mechanism includes a buffer box, the lower surface of which is fixedly connected to the operating box body, a drive motor 3 is provided on the inner lower surface of the buffer box, a rotating rod 3 is fixedly connected to the top of the output shaft of the drive motor 3, and the top of the rotating rod 3 extends to the top of the buffer box and is fixedly connected to the center of the lower surface of the turntable 1;

[0024] The outer side wall of the rotating rod three is fixedly connected to the limiting disc, and the outer side wall of the limiting disc is integrally formed with a plurality of limiting grooves. The inner right side of the buffer box is rotatably connected to the limiting rod through a rotating shaft, and the left end of the limiting rod is fixedly connected to the limiting block, and the limiting block is in contact with the limiting groove. A spring one is connected to the rod body of the limiting rod, and one end of the spring one is fixed to the buffer box.

[0025] A method for constructing a micro steel pipe pile foundation reinforcement device for a large-section loess bias-loaded tunnel comprises the following steps:

[0026] S1: The buffer mechanism is used to control the rotation of the turntable, which in turn drives the support platform to rotate, so that the equipment on the support platform can be operated in multiple directions inside the tunnel body;

[0027] S2: The movement of the support arm is controlled by telescopic rod 1, and the up and down movement of the connecting arm is controlled by telescopic rod 2, so that the drainage box can be used for subsequent operations;

[0028] S3: The second motor drives the second turntable to rotate. The second turntable drives the third turntable and the hollow column to rotate together through the belt. The rotation of the hollow column also drives the stirring rod below to rotate together, so that the concrete inside the storage box can be kept stirred to prevent the concrete from solidifying due to long-term storage.

[0029] S4: The concrete in the storage box is controlled to enter the drainage box through the drainage pipe. In addition, the concrete can be replenished through the provided adding port;

[0030] S5: The concrete in the storage box is pumped into the drainage box through the drainage pipe by the extraction pump installed inside the drainage box, and then transported to the plug interface below by the discharge pipe. After the steel pipe pile body is installed, the equipment is adjusted to the direction, and the plug interface is inserted into the interior of the steel pipe pile body for filling;

[0031] S6: During filling, concrete is transported downward from the discharge pipe, and the rotation of the rotating rod 1 is controlled by the rotating block and the baffle. The rotation of the rotating rod 1 drives the bevel gear 3 and the bevel gear 4 to rotate together, thereby driving the vibrating rod below to rotate together. When filling the steel pipe pile body, the worker can insert the vibrating rod into the steel pipe pile body, so as to vibrate the concrete in the steel pipe pile body during filling, thereby preventing a large number of bubbles from being generated inside during filling, thereby preventing the foundation from becoming unstable when the filling is completed.

[0032] Furthermore, when the buffer mechanism rotates, when the support platform drives the device to rotate to a certain angle, the device can be fixed in a certain position to prevent the device from shifting during operation.

[0033] Furthermore, a sealing cover is provided on the outside of the adding port to prevent the concrete from being in contact with air for a long time, which may cause the concrete to solidify. Beneficial effects

[0034] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0035] The present invention uses an extraction pump provided inside the drainage box to pump the concrete inside the storage box into the drainage box, and finally flows to the plug interface through the discharge pipe. During filling, the rotating block and baffle are used to control the rotation and vibration of the vibrating rod, so as to achieve the effect of vibrating the concrete in the steel pipe pile body during filling, thereby preventing a large number of bubbles from being generated inside during filling, thereby preventing the foundation from becoming unstable when the filling is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the overall front cross-sectional structure of the present invention;

[0037] Figure 2 This is a schematic diagram of the overall front cross-section structure of the drainage box of the present invention;

[0038] Figure 3 It is a side view structural diagram of the rotating block and baffle of the present invention;

[0039] Figure 4 Schematic diagram of the top view of the limiting disc, limiting rod, limiting block and spring 1 of the present invention;

[0040] Figure 5 It is a schematic diagram of the overall front cross-section structure of the buffer mechanism of the present invention;

[0041] Figure 6 For the present invention Figure 1 Schematic diagram of the enlarged structure at A in the middle;

[0042] Figure 7 For the present invention Figure 1 Schematic diagram of the enlarged structure at point B in the middle.

[0043] In the figure: 1. Tunnel body; 2. Loess ground; 3. Steel pipe pile body; 4. Track plate; 5. Drive control box; 6. Rotating shaft; 7. Moving wheel; 8. Bevel gear 1; 9. Bevel gear 2; 10. Operation box; 11. Buffer mechanism; 12. Turntable 1; 13. Support platform; 14. Support arm; 15. Telescopic rod 1; 16. Telescopic rod 2; 17. Storage box; 18. Motor box; 19. Drive motor 2; 20. Turntable 2; 21. Hollow column; 22. Turntable 3; 23. Belt; 24. Stirring rod; 25. Adding port; 26. Drainage pipe; 27. Drainage box; 28. Extraction pump; 29. ​​Discharge pipe; 30. Rotating rod one; 31. Bevel gear three; 32. Rotating rod two; 33. Bevel gear four; 34. Vibrating rod; 35. Rotating block; 36. Baffle; 37. Fixed block; 38. Plug interface; 39. Drive motor one; 40. Connecting arm; 1101. Buffer box; 1102. Drive motor three; 1103. Rotating rod three; 1104. Limiting disc; 1105. Limiting slot; 1106. Limiting rod; 1107. Limiting block; 1108. Spring one. DETAILED DESCRIPTION

[0044] The present invention will be further described below with reference to the accompanying drawings and embodiments: Example

[0045] from Figure 1-7 It can be seen that the large-section loess bias-loaded tunnel micro-steel pipe pile foundation reinforcement construction device of this embodiment includes a tunnel body 1 and a loess ground surface 2, wherein the inner lower surface of the tunnel body 1 is provided with the loess ground surface 2;

[0046] A plurality of steel pipe pile bodies 3 are arranged above the loess ground surface 2, and the bottom ends of the steel pipe pile bodies 3 extend into the interior of the loess ground surface 2;

[0047] A track plate 4 is provided on the upper surface of the loess ground 2, and a drive control box 5 is provided above the track plate 4. Two rotating shafts 6 are provided inside the drive control box 5. Both ends of the two rotating shafts 6 extend to the outside of the drive control box 5, and both ends of the two rotating shafts 6 are fixedly connected to moving wheels 7. The multiple moving wheels 7 are respectively in contact with the upper surface of the track plate 4;

[0048] The inner upper surface of the drive control box 5 is fixedly connected to a drive motor 39, the output shaft of the drive motor 39 is connected to a bevel gear 8, and the outer side wall of the rotating shaft 6 located in front of the drive control box 5 is fixedly connected to a bevel gear 2 9, which is meshed with the bevel gear 1 8.

[0049] During use, the designed driving motor 39 is used to control the rotation of bevel gear 1 8, which drives bevel gear 2 9 to rotate. The rotation of bevel gear 2 9 drives the moving wheel 7 to move above the track plate 4 through the rotating shaft 6, so that the entire equipment can be moved on the loess ground 2 inside the tunnel body 1, thereby operating the equipment to fill the loess ground 2 with cement to stabilize the loess ground 2 inside the tunnel body 1 and prevent collapse.

[0050] The upper surface of the drive control box 5 is fixedly connected to an operating box 10, and a buffer mechanism 11 is provided inside the operating box 10. A turntable 12 is provided on the upper surface of the buffer mechanism 11. A support platform 13 is fixedly connected to the upper surface of the turntable 12. The upper surface of the support platform 13 extends above the operating box 10.

[0051] The left side of the upper surface of the support platform 13 is rotatably connected to the support arm 14, and the right side of the upper surface of the support platform 13 is rotatably connected to the telescopic rod 15, and the top of the telescopic rod 15 is movably connected to the support arm 14;

[0052] The top end of the support arm 14 is rotatably connected to a connecting arm 40 , a telescopic rod 2 16 is movably connected between the lower surface of the connecting arm 40 and the support arm 14 , and a drainage box 27 is provided at the left end of the connecting arm 40 .

[0053] During use, the rotation of the turntable 12 is controlled by the provided buffer mechanism 11, and the rotation of the turntable 12 drives the support platform 13 to rotate, so that the equipment on the support platform 13 can be operated in multiple directions inside the tunnel body 1, and the movement of the support arm 14 is controlled by the provided telescopic rod 15, and the up and down movement of the connecting arm 40 is controlled by the provided telescopic rod 2 16, so that the drainage box 27 can perform subsequent operations, and when the provided buffer mechanism 11 rotates, when the support platform 13 drives the equipment to rotate to a certain angle, the equipment can be fixed in a certain position to prevent the equipment from being offset during operation.

[0054] A storage box 17 is fixedly connected to the upper surface of the operating box 10, and a motor box 18 is fixedly connected to the upper surface of the storage box 17. A second drive motor 19 is fixedly connected to the inner side of the motor box 18, and the top end of the output shaft of the second drive motor 19 is movably connected to the inner wall of the motor box 18;

[0055] The outer side wall of the output shaft of the second drive motor 19 is fixedly connected to the second turntable 20. The inner upper surface of the motor box 18 is rotatably connected to a hollow column 21 via a rotating shaft. The outer side wall of the hollow column 21 is fixedly connected to the third turntable 22. The outer side wall of the third turntable 22 is connected to the outer side wall of the second turntable 20 via a belt 23. The lower surface of the hollow column 21 is fixedly connected to a stirring rod 24.

[0056] The bottom end of the stirring rod 24 extends into the interior of the storage box 17. An addition port 25 is provided on the upper right side of the storage box 17. A drainage pipe 26 is provided at the upper end of the storage box 17.

[0057] One end of the drainage pipe 26 passes through the hollow column 21 and the stirring rod 24 and extends to the inner bottom of the storage box 17 and is connected to the storage box 17; the end of the drainage pipe 26 away from the storage box 17 is connected to the drainage box 27.

[0058] The rotation of turntable 20 is controlled by the provided driving motor 2 19, and the turntable 2 20 drives the turntable 3 22 and the hollow column 21 to rotate together through the provided belt 23. When the hollow column 21 rotates, it will drive the stirring rod 24 below to rotate together, so that the concrete inside the storage box 17 can be kept stirred to prevent the concrete from solidifying due to being placed for a long time. At the same time, the concrete inside the storage box 17 is controlled to enter the interior of the drainage box 27 through the provided drainage pipe 26. In addition, the concrete can be supplemented through the provided adding port 25. A sealing cover is provided on the outside of the adding port 25 to prevent it from being in contact with the air for a long time, which may cause the concrete to solidify.

[0059] An extraction pump 28 is fixedly connected to the upper surface of the drainage box 27. The right side of the extraction pump 28 is connected to the drainage pipe 26. A discharge pipe 29 is fixedly connected to the lower surface of the drainage box 27.

[0060] A rotating rod 30 is provided inside the discharge pipe 29. Both ends of the rotating rod 30 extend to both sides of the discharge pipe 29 and are movably connected to the inner wall of the drainage box 27. A bevel gear 31 is provided on the rod body of the rotating rod 30.

[0061] The inner upper surface of the drainage box 27 is rotatably connected to a rotating rod 2 32 via a rotating shaft. The outer side wall of the rotating rod 2 32 is fixedly connected to a bevel gear 4 33 , which is meshed with the bevel gear 3 31 .

[0062] The lower surface of the second rotating rod 32 extends to the bottom of the drainage box 27 and is fixedly connected to a vibrating rod 34. The outer wall of the first rotating rod 30 is fixedly connected to a rotating block 35 located inside the discharge pipe 29. The outer wall of the rotating block 35 is fixedly connected to a plurality of baffles 36.

[0063] A fixing block 37 is fixedly connected to the lower surface of the drainage box 27 , and an insertion port 38 is fixedly connected to the lower surface of the fixing block 37 . The insertion port 38 is in communication with the discharge pipe 29 .

[0064] The vibrating rod 34 is an extendable pipe, which facilitates deeper vibration and prevents bubbles in the deep from being eliminated, thereby affecting the stability of the foundation.

[0065] The concrete inside the storage box 17 is pumped into the discharge pipe 29 below through the extraction pump 28 provided inside the drainage box 27 through the provided drainage pipe 26, and then transported from the discharge pipe 29 to the plug port 38 below. After the steel pipe pile body 3 is installed, the equipment alignment direction is adjusted and the plug port 38 is inserted into the interior of the steel pipe pile body 3 for filling. At the same time, during filling, when the concrete is transported downward in the discharge pipe 29, the provided rotating block 35 and baffle 36 are used to control the rotation of the rotating rod 1 30. The rotation of the rotating rod 1 30 drives the bevel gear 31 and the bevel gear 4 33 to rotate together, so that the bevel gear 31 drives the vibrating rod 34 below to rotate together. When filling the steel pipe pile body 3, the worker can insert the vibrating rod 34 into the steel pipe pile body 3 together, so as to vibrate the concrete in the steel pipe pile body 3 during filling, thereby preventing a large number of bubbles from being generated inside during filling, thereby preventing the foundation from becoming unstable when the filling is completed.

[0066] The buffer mechanism 11 includes a buffer box 1101, the lower surface of which is fixedly connected to the operating box 10. A drive motor 3 1102 is provided on the inner lower surface of the buffer box 1101. The top end of the output shaft of the drive motor 3 1102 is fixedly connected to a rotating rod 3 1103. The top end of the rotating rod 3 1103 extends above the buffer box 1101 and is fixedly connected to the center of the lower surface of the turntable 12.

[0067] The outer side wall of the rotating rod three 1103 is fixedly connected to the limiting disc 1104, and the outer side wall of the limiting disc 1104 is integrally formed with a plurality of limiting grooves 1105. The inner right side of the buffer box 1101 is rotatably connected to the limiting rod 1106 through a rotating shaft, and the left end of the limiting rod 1106 is fixedly connected to the limiting block 1107, and the limiting block 1107 is in contact with the limiting groove 1105. A spring 1108 is connected to the rod body of the limiting rod 1106, and one end of the spring 1108 is fixed to the buffer box 1101.

[0068] The rotation of the rotating rod three 1103 is controlled by the provided driving motor three 1102. The rotation of the rotating rod three 1103 will drive the limiting disc 1104 to rotate together. When the limiting disc 1104 rotates, the limiting rod 1106 and the limiting block 1107 will be squeezed out of the limiting groove 1105. When it rotates to a certain position, the limiting rod 1106 and the limiting block 1107 will be re-engaged in the limiting groove 1105 by the provided spring one 1108, so that the device can be fixed during rotation to prevent the device from shaking during infusion.

[0069] A method for constructing a micro steel pipe pile foundation reinforcement device for a large-section loess bias-loaded tunnel comprises the following steps:

[0070] S1: The buffer mechanism 11 is used to control the rotation of the turntable 12, which in turn drives the support platform 13 to rotate, so that the equipment on the support platform 13 can be operated in various directions inside the tunnel body 1;

[0071] S2: The movement of the support arm 14 is controlled by the telescopic rod 15, and the up and down movement of the connecting arm 40 is controlled by the telescopic rod 2 16, so that the drainage box 27 can perform subsequent operations; when the buffer mechanism 11 rotates, when the support platform 13 drives the device to rotate to a certain angle, the device is fixed in a certain position to prevent the device from shifting during operation;

[0072] S3: The second turntable 20 is controlled to rotate by driving the second motor 19. The second turntable 20 drives the third turntable 22 and the hollow column 21 to rotate together via the belt 23. The rotation of the hollow column 21 also drives the stirring rod 24 below to rotate together, thereby keeping the concrete inside the storage box 17 stirred and preventing the concrete from solidifying due to long-term storage.

[0073] S4: The concrete in the storage box 17 is controlled to flow into the drainage box 27 through the drainage pipe 26. In addition, the concrete can be replenished through the provided adding port 25. The outer side of the adding port 25 is provided with a sealing cover to prevent prolonged contact with air, which may cause the concrete to solidify.

[0074] S5: The concrete in the storage box 17 is pumped into the drainage box 27 through the drainage pipe 26 by the extraction pump 28 provided inside the drainage box 27. The concrete is then transported to the plug-in port 38 below through the discharge pipe 29. After the steel pipe pile body 3 is installed and the equipment is aligned, the plug-in port 38 is inserted into the steel pipe pile body 3 for filling.

[0075] S6: During filling, concrete is transported downward from the discharge pipe 29, and the rotation of the rotating rod 1 30 is controlled by the rotating block 35 and the baffle 36. The rotation of the rotating rod 1 30 drives the bevel gear 31 and the bevel gear 4 33 to rotate together, thereby driving the vibrating rod 34 below to rotate together. When filling the steel pipe pile body 3, the worker can insert the vibrating rod 34 into the steel pipe pile body 3 to vibrate the concrete in the steel pipe pile body 3 during filling, thereby preventing a large number of bubbles from being generated inside during filling, thereby preventing the foundation from becoming unstable when the filling is completed.

[0076] The present invention uses an extraction pump provided inside the drainage box to pump the concrete inside the storage box through the provided drainage pipe to the discharge pipe below, and finally flows to the plug port through the discharge pipe. Afterwards, the provided rotating block and baffle can be used to control the rotation and vibration of the vibrating rod, so that the concrete in the steel pipe pile body can be vibrated during filling, thereby preventing a large number of bubbles from being generated inside during filling, thereby preventing the foundation from becoming unstable after filling is completed.

[0077] The rotation of the limit disc is controlled by the set driving motor three. When the limit disc rotates, the set limit rod, limit block and limit slot are used to fix the device to prevent the device from shaking during infusion.

[0078] The above is a schematic description of the present invention and its embodiments, which is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by this and, without departing from the purpose of the present invention, designs a structure and embodiment similar to this technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. A construction device for reinforcing foundation of a large-section loess eccentrically loaded tunnel with micro steel pipe piles, comprising a tunnel body (1) and a loess ground surface (2), characterized in that: The inner lower surface of the tunnel body (1) is provided with a loess ground surface (2); A track plate (4) is provided on the upper surface of the loess ground (2), a drive control box (5) is provided above the track plate (4), two rotating shafts (6) are provided inside the drive control box (5), both ends of the two rotating shafts (6) extend to the outside of the drive control box (5), and both ends of the two rotating shafts (6) are fixedly connected to moving wheels (7), and the plurality of moving wheels (7) are respectively in contact with the upper surface of the track plate (4); The inner upper surface of the drive control box (5) is fixedly connected to a drive motor 1 (39), the output shaft of the drive motor 1 (39) is connected to a bevel gear 1 (8), and the outer side wall of the rotating shaft (6) located in front of the drive control box (5) is fixedly connected to a bevel gear 2 (9), and the bevel gear 2 (9) is meshed with the bevel gear 1 (8); A plurality of steel pipe pile bodies (3) are arranged above the loess ground surface (2), and the bottom ends of the steel pipe pile bodies (3) extend into the interior of the loess ground surface (2); The upper surface of the driving control box (5) is fixedly connected to an operating box (10), a buffer mechanism (11) is provided inside the operating box (10), a turntable (12) is provided on the upper surface of the buffer mechanism (11), and a support platform (13) is fixedly connected to the upper surface of the turntable (12), and the upper surface of the support platform (13) extends above the operating box (10); The left side of the upper surface of the support platform (13) is rotatably connected to a support arm (14), and the right side of the upper surface of the support platform (13) is rotatably connected to a telescopic rod (15), and the top end of the telescopic rod (15) is movably connected to the support arm (14); The top end of the support arm (14) is rotatably connected to a connecting arm (40), a second telescopic rod (16) is movably connected between the lower surface of the connecting arm (40) and the support arm (14), and a drainage box (27) is provided at the left end of the connecting arm (40); The upper surface of the operating box (10) is fixedly connected to a storage box (17), the upper surface of the storage box (17) is fixedly connected to a motor box (18), the inner side of the motor box (18) is fixedly connected to a second drive motor (19), and the top end of the output shaft of the second drive motor (19) is movably connected to the inner wall of the motor box (18); The outer side wall of the output shaft of the driving motor 2 (19) is fixedly connected to the turntable 2 (20), the inner upper surface of the motor box (18) is rotatably connected to the hollow column (21) via the rotating shaft, the outer side wall of the hollow column (21) is fixedly connected to the turntable 3 (22), the outer side wall of the turntable 3 (22) and the outer side wall of the turntable 2 (20) are jointly connected by a belt (23), and the lower surface of the hollow column (21) is fixedly connected to the stirring rod (24); The bottom end of the stirring rod (24) extends to the interior of the storage box (17), an addition port (25) is provided on the upper right side of the storage box (17), and a drainage pipe (26) is provided at the upper end of the storage box (17); One end of the drainage pipe (26) passes through the hollow column (21) and the stirring rod (24) and extends to the inner bottom of the storage box (17) and is in communication with the storage box (17); the end of the drainage pipe (26) away from the storage box (17) is in communication with the drainage box (27); The upper surface of the drainage box (27) is fixedly connected to an extraction pump (28), the right side of the extraction pump (28) is connected to the drainage pipe (26), and the lower surface of the drainage box (27) is fixedly connected to a discharge pipe (29); A rotating rod (30) is provided inside the discharge pipe (29), and both ends of the rotating rod (30) extend to both sides of the discharge pipe (29) and are movably connected to the inner wall of the drainage box (27); a bevel gear (31) is provided on the rod body of the rotating rod (30); The inner upper surface of the drainage box (27) is rotatably connected to a rotating rod 2 (32) via a rotating shaft, and the outer side wall of the rotating rod 2 (32) is fixedly connected to a bevel gear 4 (33), and the bevel gear 4 (33) is meshed with the bevel gear 3 (31); The lower surface of the second rotating rod (32) extends to the bottom of the drainage box (27) and is fixedly connected to a vibrating rod (34); the outer wall of the first rotating rod (30) is fixedly connected to a rotating block (35) located inside the discharge pipe (29); the outer wall of the rotating block (35) is fixedly connected to a plurality of baffles (36); The lower surface of the drainage box (27) is fixedly connected to a fixed block (37), the lower surface of the fixed block (37) is fixedly connected to an insertion port (38), and the insertion port (38) is connected to the discharge pipe (29).

2. The large-section loess bias-loaded tunnel micro-steel pipe pile foundation reinforcement construction device according to claim 1 is characterized by: The vibrating rod (34) is an extendable pipe.

3. The large-section loess unbalanced tunnel micro steel pipe pile foundation reinforcement construction device according to claim 1 is characterized by: The buffer mechanism (11) includes a buffer box (1101), the lower surface of the buffer box (1101) is fixedly connected to the operating box (10), the inner lower surface of the buffer box (1101) is provided with a driving motor three (1102), the top end of the output shaft of the driving motor three (1102) is fixedly connected to a rotating rod three (1103), the top end of the rotating rod three (1103) extends to the top of the buffer box (1101) and is fixedly connected to the center of the lower surface of the turntable one (12); The outer side wall of the rotating rod three (1103) is fixedly connected to the limiting disc (1104), and the outer side wall of the limiting disc (1104) is integrally formed with a plurality of limiting grooves (1105). The inner right side of the buffer box (1101) is rotatably connected to the limiting rod (1106) via a rotating shaft. The left end of the limiting rod (1106) is fixedly connected to the limiting block (1107), and the limiting block (1107) is in contact with the limiting groove (1105). The rod body of the limiting rod (1106) is connected to a spring one (1108), and one end of the spring one (1108) is fixed to the buffer box (1101).

4. The method for using the large-section loess bias-loaded tunnel micro-steel pipe pile foundation reinforcement construction device according to claim 3, characterized in that: The steps are: S1: The turntable 1 (12) is controlled to rotate by the buffer mechanism (11), and the turntable 1 (12) rotates and drives the support platform (13) to rotate, so that the equipment on the support platform (13) can perform multi-directional operations inside the tunnel body (1); S2: Control the movement of the support arm (14) by the telescopic rod (15), and control the up and down movement of the connecting arm (40) by the telescopic rod (16), so that the drainage box (27) can be operated subsequently; S3: The second turntable (20) is controlled to rotate by driving the second motor (19). The second turntable (20) drives the third turntable (22) and the hollow column (21) to rotate together through the belt (23). The rotation of the hollow column (21) also drives the stirring rod (24) below to rotate together, so that the concrete inside the storage box (17) can be kept stirred to prevent the concrete from solidifying due to long storage time. S4: controlling the concrete inside the storage box (17) to enter the interior of the drainage box (27) through the drainage pipe (26), and replenishing the concrete through the provided addition port (25); S5: The concrete in the storage box (17) is pumped into the drainage box (27) through the drainage pipe (26) by the extraction pump (28) provided inside the drainage box (27), and then transported to the plug-in port (38) below through the discharge pipe (29). After the steel pipe pile body (3) is installed and the equipment is aligned, the plug-in port (38) is inserted into the interior of the steel pipe pile body (3) for filling; S6: During filling, concrete is transported downward from the discharge pipe (29), and the rotating block (35) and the baffle (36) are provided to control the rotation of the rotating rod 1 (30). The rotation of the rotating rod 1 (30) drives the bevel gear 3 (31) and the bevel gear 4 (33) to rotate together, thereby driving the vibrating rod (34) below to rotate together. When the worker is filling the steel pipe pile body (3), the vibrating rod (34) is inserted into the steel pipe pile body (3), and the concrete in the steel pipe pile body (3) can be vibrated during filling to prevent a large number of bubbles from being generated inside during filling, thereby preventing the foundation from becoming unstable after filling is completed.

5. The method for using the large-section loess bias-loaded tunnel micro-steel pipe pile foundation reinforcement construction device according to claim 4, characterized in that: When the buffer mechanism (11) rotates, when the support platform (13) drives the device to rotate to a certain angle, the device is fixed at a certain position to prevent the device from deflecting during operation.

6. The method for using the large-section loess bias-loaded tunnel micro-steel pipe pile foundation reinforcement construction device according to claim 4, characterized in that: A sealing cover is provided on the outside of the adding port (25) to prevent the concrete from solidifying due to prolonged contact with air.

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