Construction equipment and method for highway bridge pile foundation

Abstract

This invention relates to pile foundation construction equipment, and provides a construction equipment and method for highway bridge pile foundations. The construction equipment includes a static pressure pile driver, with a base plate below the static pressure pile driver. Long boats are provided on both sides of the base plate, and both sides of the static pressure pile driver are connected to the long boats via lifting components. One through hole and one through hole are respectively provided on one side of the static pressure pile driver and the base plate. A crane and a hydraulic pile clamping component are provided on the static pressure pile driver. A protective component is provided between the static pressure pile driver and the base plate, below the hydraulic pile clamping component. The hydraulic pile clamping component includes a fixing plate, with a through hole three in the middle of the fixing plate. Hydraulic rods two are provided at the center of both sides of the top of the fixing plate. A matching hydraulic cylinder two is provided on the upper part of the hydraulic rod two. A gantry frame is provided at the bottom of the hydraulic cylinder two. The gantry frame is erected on both sides above the through hole one to ensure the perpendicularity and coaxiality of the pile foundation connection axis, avoid stress concentration after welding, and improve the overall stress performance of the pile foundation.

Description

Technical Field

[0001] This invention relates to a construction equipment and method for highway bridge pile foundations, belonging to the technical field of pile foundation construction equipment. Background Technology

[0002] As the core underground load-bearing structure of bridge engineering, the construction quality of highway bridge pile foundations directly determines the overall stability and durability of the bridge. Static pressure pile driving has become the mainstream method for highway bridge pile foundation construction due to its advantages of vibration-free and low-noise construction. The core of this process involves welding multiple precast pile foundation sections together on-site and then pressing them into the ground one by one. However, existing static pressure pile foundation construction equipment has many technical defects in practical applications, seriously affecting construction efficiency and pile foundation quality.

[0003] Existing equipment lacks a dedicated pile foundation alignment structure. When two pile foundation sections are joined, axial misalignment and verticality deviation are prone to occur. After welding, the pile foundation is subjected to uneven stress, which can easily lead to stress concentration and cracking. Furthermore, traditional hydraulic pile clamping structures are mostly fixed in size and cannot flexibly adapt to pile foundations of different diameters. The clamping stability is poor, making it easy for the pile foundation to slip and shift during pile driving and welding. At the same time, there is no integrated protective structure in the welding operation area. High-temperature welding slag is prone to splashing and damaging equipment components. Moreover, dirt and dust easily adhere to the weld points. Direct welding without cleaning can easily lead to defects such as incomplete welds and slag inclusions. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a construction equipment and method for highway bridge pile foundations.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0006] According to one aspect of the present invention, a construction device for highway bridge pile foundations is provided.

[0007] The system includes a static pressure pile driver, with a base plate underneath. Long boats are mounted on both sides of the base plate, and both sides of the static pressure pile driver are connected to the long boats via lifting components. One through-hole and one through-hole are respectively located on one side of the static pressure pile driver and the base plate. A crane and a hydraulic pile clamping component are mounted on the static pressure pile driver. A protective component is located between the static pressure pile driver and the base plate, below the hydraulic pile clamping component. The hydraulic pile clamping component includes a fixed plate with a through-hole three in the center. Hydraulic rods two are located at the center of both sides of the top of the fixed plate. A matching hydraulic cylinder two is located on the upper part of each hydraulic rod two. A gantry frame is located at the bottom of each hydraulic cylinder two, and the gantry frame is erected above and on both sides of the through-hole one. The protective components include a vertical plate fixed to one side of the top of the base plate. Motors are installed on both sides of the vertical plate away from the through holes. The output end of each motor is connected to an output shaft, which passes through the vertical plate and has a threaded rod at its end. A column is fitted onto the threaded rod at the center of the two sides of the through holes. The column is fixed to both sides of the top of the base plate. Opposite threaded structures are provided on both sides of the column on the threaded rod. Threaded structures are respectively provided with threaded movable plates 1 and 2. Hollow elastic cleaning rings are provided inside the movable plates 1 and 2. An annular spray protection assembly is located below the hollow elastic cleaning rings.

[0008] Furthermore, the lifting component includes a horizontal plate two, with a horizontal plate one at each end of the horizontal plate two. The inner walls of the horizontal plate one are fixed to both sides of the side of the static pressure pile driver. A hydraulic cylinder one is provided on the outer side of the horizontal plate one, and a matching hydraulic rod one is provided inside the hydraulic cylinder one. The hydraulic rod one passes through the hydraulic cylinder one and is fixed at the bottom of the long boat.

[0009] Furthermore, a telescopic column 1 is provided at the center of both sides of the top of the base plate, and a matching telescopic column 2 is provided inside the telescopic column 1. The telescopic column 2 passes through the telescopic column 1 and its top is fixed to the bottom of the horizontal plate 2.

[0010] Furthermore, the top of the fixed plate has two columns at both ends, and a threaded rod is transversely inserted between the two columns. One end of the threaded rod is electrically connected to a motor installed on the outside of one of the columns. The threaded rod has two opposite threaded structures on both sides, and threaded blocks with threaded engagement are respectively provided on the threaded structures. The top of the threaded blocks has a symmetrical L-shaped moving plate, and the bottom of the L-shaped moving plate away from the threaded rod has a slider. The bottom of the slider has a sliding engagement track, and the bottom of the track has a support platform. The bottom of the support platform is fixed to the top of the fixed plate, and a symmetrical clamping block is provided at the center of the bottom of the L-shaped moving plate.

[0011] Furthermore, the vertical plate is provided with a sloping convex plate one at the center of one side of the movable plate two, and an adjusting column is provided on the side of the sloping convex plate one away from the vertical plate. An adjusting rod is inserted through the middle of the adjusting column, and the bottom of the adjusting rod is movably connected to the top of the base plate. An adjusting plate is provided at the top of the adjusting rod. Sloping protrusions are provided on both sides of the adjusting column, and a sloping convex plate two is provided at the center of one side of the movable plate two corresponding to the sloping protrusions.

[0012] Furthermore, the hollow elastic cleaning ring is composed of two hollow arc-shaped plates. The interior of the arc-shaped plates is filled with high-pressure inert gas. The inner wall of the arc-shaped plates is provided with several high-pressure jet micro-holes. The outer wall of the arc-shaped plates is connected to several connecting pipes. The side of the connecting pipe away from the arc-shaped plates is connected to one end of the air passage located in the first and second moving plates. The other side of the air passage is connected to a guide pipe. The side of the guide pipe away from the connecting pipe passes through the first and second moving plates and is connected to a high-pressure air pump installed on the top of the column on one of them.

[0013] Furthermore, the first and second movable plates are T-shaped structures, and springs are sleeved between the first movable plate and the first column and on the first threaded rod; V-grooves are provided at the center of the corresponding sides of the first and second movable plates, and a first groove is provided at the center of the inner side of the V-groove. Several connectors are provided on the inner wall of the first groove, and the connecting pipe is sealed to the air passage through the connectors.

[0014] Furthermore, the annular spray protection assembly includes a lower guide plate, a protective cylinder inserted through the middle of the lower guide plate, an upper guide plate at the top of the protective cylinder, a disc at the top of the upper guide plate, a through hole four in the middle of the disc, and several spray protection plates at the top of the disc. The inner wall of each spray protection plate has atomizing spray holes, and a filter screen is installed at the outlet end of each atomizing spray hole. A delivery pipe is inserted inside each spray protection plate, with one end connected to the atomizing spray hole and the other end penetrating the top of the disc and communicating with the inside of the disc. A liquid guide pipe is connected to one side of the disc, penetrating a movable plate. A storage tank is connected to the side of the liquid guide pipe away from the disc, and the storage tank is fixed to the top of the other column. A high-pressure delivery pump and an electromagnetic control valve are installed on the liquid guide pipe, and the storage tank stores a water-based inorganic zinc-rich rust inhibitor.

[0015] Furthermore, the upper and lower sides of the protective cylinder are provided with strip-shaped holes. A conical support ring is fitted on the outer side of the strip-shaped hole on the protective cylinder. Limiting holes are provided on both sides of the conical support ring. A sandwich layer is provided inside the conical support ring. The outer wall of the conical support ring is provided with several first inclined surfaces and first planes. A second inclined surface and a second plane are provided between adjacent sets of first inclined surfaces and first planes. A transmission pin is inserted into the limiting hole. The outer end of the transmission pin passes through the strip-shaped hole and is provided with a limiting block. A return spring is fitted on the transmission pin inside the sandwich layer. A second groove is provided at the bottom of the upper guide plate and the top of the lower guide plate. A matching drum cone is provided in the second groove and on the side of the transmission pin.

[0016] Furthermore, the inner wall of the clamping block is fixed with an anti-slip rubber pad, and the surface of the anti-slip rubber pad is provided with anti-slip texture to adapt to the clamping requirements of pile bodies of different diameters; the bottom of the long boat is fixed with a wear-resistant anti-slip plate to improve the contact stability between the equipment and the ground.

[0017] According to another aspect of the present invention, a construction method for highway bridge pile foundations is provided.

[0018] The construction method for the pile foundation of this highway bridge includes the following steps:

[0019] S1: The hydraulic cylinder of the lifting unit drives the hydraulic rod to extend and retract, and together with the telescopic column one and telescopic column two, the static pressure pile driver is leveled and stably supported. The first section of the pile body is lifted into the through hole three of the hydraulic pile clamping component by the crane. The hydraulic cylinder two is started to drive the hydraulic rod two to press down, pressing the pile body into the ground until the top is exposed at the preset height, and then the pile pressing is stopped.

[0020] S2: The second pile foundation is lifted by a crane and coaxially connected with the end of the first pile foundation. The second motor drives the second threaded rod to rotate, which drives the threaded blocks on both sides and the L-shaped moving plate to move towards the center synchronously. The second pile foundation is clamped and fixed by the clamping blocks.

[0021] S3: Start the motor to drive the threaded rod to rotate, which will cause the moving plate 1 and the moving plate 2 to move in opposite directions, so that the hollow elastic cleaning ring fits against the outside of the pile foundation docking end. Rotate the adjustment plate to drive the adjustment column to rotate. Through the cooperation of the inclined protrusion and the inclined protrusion plate 2, the position of the moving plate 2 is finely adjusted to ensure the verticality and coaxiality of the axis of the pile foundation at both ends.

[0022] S4: Readjust the lifting components to keep the base plate in contact with the ground, and fully extend the telescopic columns one and two to provide secondary support for the equipment and ensure the stability of the equipment during the welding process;

[0023] S5: Start the high-pressure air pump. High-pressure inert gas is sprayed out from the high-pressure jet micro-hole through the air passage and connecting pipe to blow away the mud, dust and impurities at the weld joint of the pile foundation. The workers then perform welding operations on the joint ends of the two pile foundation sections. Hollow elastic cleaning rings and protective cylinders prevent welding slag from splashing.

[0024] S6: After welding is completed, start the high-pressure infusion pump and electromagnetic control valve. The water-based inorganic zinc-rich rust inhibitor in the storage tank is atomized and sprayed out from the atomizing spray hole through the liquid guide pipe, disc and delivery pipe. The filter screen filters out impurities and the rust inhibitor is evenly covered on the weld surface to form a protective film.

[0025] S7: After the weld protection is completed, turn off the high-pressure air pump, high-pressure liquid pump and electromagnetic control valve in sequence; start motor one and motor two to rotate in opposite directions, driving moving plate one and moving plate two and L-shaped moving plate to reset; start the hydraulic pile clamping component to continue pressing the completed pile body into the ground; repeat steps S1-S6 to complete the subsequent pile splicing construction.

[0026] The beneficial effects of this invention are:

[0027] The motor of the protective component drives the threaded rod to move the moving plate 1 and the moving plate 2 in opposite directions. With the cooperation and adjustment of the inclined convex plate 1, the inclined convex block and the inclined convex plate 2, the joint end of the two pile foundations can be accurately clamped and straightened, ensuring the perpendicularity and coaxiality of the pile foundation joint axis, avoiding stress concentration after welding, and improving the overall stress performance of the pile foundation.

[0028] The hydraulic pile clamping component is driven by motor 2 to move the threaded rod 2, causing the L-shaped moving plates on both sides to move synchronously in opposite directions. With the anti-slip rubber pads of the clamping blocks, it can flexibly adapt to piles of different diameters. The clamping force is uniform and the stability is strong, effectively preventing the pile foundation from slipping and shifting during pile driving and welding.

[0029] The protective component integrates a hollow elastic cleaning ring and an annular spray protection component. The hollow elastic cleaning ring uses high-pressure jet micro-holes to automatically clean dirt and dust from the weld joint, preventing incomplete welds and slag inclusions. The annular spray protection component also enables instant atomized spraying of rust-preventing liquid onto the weld, forming a dense protective film on the weld surface to isolate air and moisture and improve the durability of the pile foundation connection.

[0030] The lifting component adopts a combination structure of hydraulic cylinder one and telescopic column one and telescopic column two, which not only realizes the flexible lifting and precise leveling of the static pressure pile driver, but also provides dual support for the equipment, improves the stability of the equipment during construction, and avoids the equipment tilting from affecting the pile driving and welding accuracy.

[0031] The components work together in a coordinated manner, allowing for continuous completion of processes such as pile clamping, straightening, weld cleaning, and weld rust prevention, significantly reducing manual operation steps and improving construction efficiency. At the same time, each adjustment structure adopts threaded transmission and inclined plane cooperation, resulting in high adjustment accuracy and strong stability, adapting to the needs of different construction conditions.

[0032] The hollow elastic cleaning ring is made of elastic material and makes flexible contact with the pile foundation to avoid scratching the pile foundation surface; the protective cylinder, conical support ring and other structures can effectively block welding slag splash, prevent equipment parts from being damaged by high temperature welding slag, and extend the overall service life of the equipment. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the overall structure of a construction equipment and method for highway bridge pile foundations according to the present invention;

[0035] Figure 2 This is an exploded view of the connection between the static pressure pile driver and the base plate in the construction equipment and method for highway bridge pile foundations according to the present invention.

[0036] Figure 3 This is a schematic diagram of the hydraulic pile clamping component structure of a construction equipment and method for highway bridge pile foundations according to the present invention.

[0037] Figure 4 This is a schematic diagram of the protective component structure of a construction equipment and method for highway bridge pile foundations according to the present invention;

[0038] Figure 5 This is a schematic diagram of the connecting end structure of the movable plate of the construction equipment and method for highway bridge pile foundation of the present invention.

[0039] Figure 6 This is a schematic diagram of the annular spraying protection component structure of a construction equipment and method for highway bridge pile foundations according to the present invention.

[0040] Figure 7 This is a schematic diagram of the protective cylinder structure of a construction equipment and method for highway bridge pile foundations according to the present invention;

[0041] Figure 8 This is a schematic diagram of the conical support ring structure of a construction equipment and method for highway bridge pile foundations according to the present invention.

[0042] In the diagram: 1. Static pressure pile driver; 2. Base plate; 3. Long boat; 4. Through hole one; 5. Through hole two; 6. Crane; 7. Hydraulic pile clamping component; 8. Fixing plate; 9. Through hole three; 10. Hydraulic rod two; 11. Hydraulic cylinder two; 12. Gantry frame; 13. Vertical plate; 14. Motor one; 15. Threaded rod one; 16. Column one; 17. Moving plate one; 18. Moving plate two; 19. Hollow elastic cleaning ring; 20. Horizontal plate two; 21. Horizontal plate one; 22. Hydraulic cylinder one; 23. Hydraulic rod one; 24. Telescopic column one; 25. Telescopic column two; 26. Column two; 27. Threaded rod two; 28. Motor two; 29. ​​Threaded block; 30. L-shaped moving plate; 31. Slider; 32. Track; 33. Support platform; 34. Clamping block; 35. Inclined convex plate one; 36. Adjusting column; 37. Adjusting rod 38. Adjusting disc; 39. Inclined protrusion; 40. Inclined protrusion II; 41. High-pressure jet micro-orifice; 42. Connecting pipe; 43. Air passage; 44. Air guide pipe; 45. High-pressure air pump; 46. Spring; 47. V-groove; 48. First groove; 49. Connector; 50. Lower guide disc; 51. Protective cylinder; 52. Upper guide disc; 53. Disc; 54. Through hole IV; 55. Spray protective plate; 56. Atomizing spray hole; 57. Delivery pipe; 58. Liquid guide pipe; 59. Liquid storage tank; 60. High-pressure infusion pump; 61. Electromagnetic control valve; 62. Strip hole; 63. Conical support ring; 64. Limiting hole; 65. First inclined surface; 66. First plane; 67. Second inclined surface; 68. Second plane; 69. Transmission pin; 70. Return spring; 71. Second groove; 72. Drum cone. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] Example 1

[0045] Please see Figures 1-8This invention provides a construction device for highway bridge pile foundations, including a static pile driver 1. A base plate 2 is provided below the static pile driver 1, and long boats 3 are provided on both sides of the base plate 2. Both sides of the static pile driver 1 are connected to the long boats 3 via lifting components. A through hole 4 and a through hole 5 are respectively provided on one side of the static pile driver 1 and the base plate 2. A crane 6 and a hydraulic pile clamping component 7 are provided on the static pile driver 1. A protective component is provided between the static pile driver 1 and the base plate 2, below the hydraulic pile clamping component 7. The hydraulic pile clamping component 7 includes a fixing plate 8, a through hole 9 in the middle of the fixing plate 8, and hydraulic rods 10 at the center of both sides of the top of the fixing plate 8. A matching hydraulic cylinder 11 is provided on the upper part of the hydraulic rod 10, and a gantry frame 12 is provided at the bottom of the hydraulic cylinder 11. The gantry frame 12 is erected on the through hole 9. Above the first hole 4 on both sides; the protective components include a vertical plate 13 fixed to one side of the top of the base plate 2. The vertical plate 13 is equipped with a motor 14 on both sides away from the side of the second through hole 5. The output end of the motor 14 is connected to an output shaft 1. The output shaft 1 passes through the vertical plate 13 and is equipped with a threaded rod 15 at its end. A column 16 is sleeved on the threaded rod 15 at the center position on the side of the second through hole 5. The column 16 is fixed to the top of the base plate 2 on both sides. On the threaded rod 15, there are opposite threaded structures 1 on both sides of the column 16. The threaded structures 1 are respectively equipped with a threaded moving plate 17 and a moving plate 2 18. Hollow elastic cleaning rings 19 are provided on the inner side of the moving plate 17 and the moving plate 2 18. A ring-shaped liquid spray protection component is provided below the hollow elastic cleaning rings 19.

[0046] Referring to Figure 2, the lifting component includes a second horizontal plate 20, with a first horizontal plate 21 at both ends of the second horizontal plate 20. The inner walls of the first horizontal plate 21 are fixed to both sides of the side of the static pressure pile driver 1. A hydraulic cylinder 22 is provided on the outer side of the first horizontal plate 21. A matching hydraulic rod 23 is provided inside the first hydraulic cylinder 22. The hydraulic rod 23 passes through the first hydraulic cylinder 22 and is fixed at the bottom to the long boat 3. Telescopic columns 24 are provided at the center of both sides of the top of the bottom plate 2. A matching telescopic column 25 is provided inside the first telescopic column 24. The second telescopic column 25 passes through the first telescopic column 24 and is fixed at the bottom of the second horizontal plate 20.

[0047] See Figure 3 The top of the fixed plate 8 has two columns 26 at both ends, and a threaded rod 27 is transversely inserted between the columns 26. One end of the threaded rod 27 is electrically connected to a motor 28 installed on the outside of one column 26. The threaded rod 27 has two opposite threaded structures 2 on both sides, and threaded blocks 29 with threaded engagement are respectively provided on the threaded structures 2. The top of the threaded blocks 29 is provided with a symmetrical L-shaped moving plate 30. The bottom of the L-shaped moving plate 30 away from the threaded rod 27 is provided with a slider 31. The bottom of the slider 31 is provided with a sliding engagement track 32. The bottom of the track 32 is provided with a support platform 33. The bottom of the support platform 33 is fixed to the top of the fixed plate 8. The center of the bottom of the L-shaped moving plate 30 is provided with a symmetrical clamping block 34.

[0048] See Figure 4 , Figure 5 The upright plate 13 has a sloping convex plate 35 at the center of one side corresponding to the movable plate 18. An adjusting column 36 is located on the side of the sloping convex plate 35 away from the upright plate 13. An adjusting rod 37 is inserted through the middle of the adjusting column 36. The bottom of the adjusting rod 37 is movably connected to the top of the base plate 2. An adjusting disc 38 is located on the top of the adjusting rod 37. Sloping protrusions 39 are located on both sides of the adjusting column 36. A sloping convex plate 40 is located at the center of one side corresponding to the sloping protrusions 39 of the movable plate 18. The hollow elastic cleaning ring 19 is composed of two hollow arc-shaped plates. The interior of the arc-shaped plates is filled with high-pressure inert gas. Several high-pressure jet micro-holes 41 are located on the inner wall of the arc-shaped plates. Several connecting pipes 42 are connected to the outer wall of the arc-shaped plates. The side of the connecting pipes 42 away from the arc-shaped plates is connected to the movable plate 18. One end of the air passage 43 provided in the first movable plate 17 and the second movable plate 18 is connected, and the other side of the air passage 43 is connected to the air guide pipe 44. The side of the air guide pipe 44 away from the connecting pipe 42 passes through the first movable plate 17 and the second movable plate 18 and is connected to the high-pressure air pump 45 installed on the top of the first column 16 on one side. The first movable plate 17 and the second movable plate 18 are T-shaped structures. A spring 46 is sleeved between the first movable plate 17 and the second movable plate 18 and the first column 16 and located on the threaded rod 15. A V-groove 47 is provided at the center of the corresponding side of the first movable plate 17 and the second movable plate 18. A first groove 48 is provided at the center of the inner side of the V-groove 47. A number of connectors 49 are provided on the inner wall of the first groove 48. The connecting pipe 42 is sealed to the air passage 43 through the connectors 49.

[0049] See Figures 6-8The annular spray protection assembly includes a lower guide plate 50, a protective cylinder 51 inserted through the middle of the lower guide plate 50, an upper guide plate 52 at the top of the protective cylinder 51, a disc 53 at the top of the upper guide plate 52, a through hole 54 in the middle of the disc 53, and several spray protection plates 55 at the top of the disc 53. The inner wall of each spray protection plate 55 has atomizing spray holes 56, and a filter screen is installed at the outlet end of each atomizing spray hole 56. A delivery pipe 57 is inserted inside the spray protection plate 55, with one end connected to the atomizing spray hole 56 and the other end penetrating the top of the disc 53 and communicating with its interior. A liquid guide pipe 58 is connected to one side of the disc 53, penetrating a moving plate 17. A liquid storage tank 59 is connected to the side of the liquid guide pipe 58 away from the disc 53, and the liquid storage tank 59 is fixed to the top of a column 16 on the other side. A high-pressure pump is installed on the liquid guide pipe 58. The liquid pump 60 and the electromagnetic control valve 61 are provided. The liquid storage tank 59 contains water-based inorganic zinc-rich rust inhibitor. The upper and lower sides of the protective cylinder 51 are provided with strip-shaped holes 62. A conical support ring 63 is fitted on the outer side of the strip-shaped hole 62 on the protective cylinder 51. Limiting holes 64 are provided on both sides of the conical support ring 63. A sandwich layer is provided inside the conical support ring 63. Several first inclined surfaces 65 and first planes 66 are provided on the outer wall of the conical support ring 63. A second inclined surface 67 and a second plane 68 are provided between adjacent sets of first inclined surfaces 65 and first planes 66. A transmission pin 69 is inserted into the limiting hole 64. The outer end of the transmission pin 69 passes through the strip-shaped hole 62 and is provided with a limiting block. A return spring 70 is fitted on the transmission pin 69 inside the sandwich layer. The bottom of the upper guide plate 52 and the top of the lower guide plate 50 are provided with second grooves 71. A matching drum cone 72 is provided in the second groove 71 and on the side of the transmission pin 69.

[0050] Example 2

[0051] A construction method for highway bridge pile foundations includes the following steps:

[0052] S1: The hydraulic cylinder 22 of the lifting unit drives the hydraulic rod 23 to extend and retract, which, together with the telescopic column 24 and the telescopic column 25, levels and stabilizes the static pressure pile driver 1. The first section of the pile body is lifted into the through hole 9 of the hydraulic pile clamping component 7 by the crane 6. The hydraulic cylinder 211 is started to drive the hydraulic rod 210 to press down, pressing the pile body into the ground until the top is exposed at the preset height, and then the pile pressing stops. The hydraulic cylinder 22 and the telescopic column work together to achieve equipment leveling. The hydraulic rod 210 of the hydraulic pile clamping component 7 provides the downward pressing power to stably press the pile body into the ground, preparing for subsequent docking.

[0053] S2: The second pile foundation is lifted by the crane 6 and coaxially connected with the end of the first pile foundation. The second motor 28 is started to drive the threaded rod 27 to rotate, which drives the threaded blocks 29 on both sides and the L-shaped moving plate 30 to move towards the center at the same time. The second pile foundation is clamped and fixed by the clamping block 34. The second motor 28 drives the bidirectional threaded rod 27 to realize the precise opening and closing of the clamping block 34. The anti-slip rubber pad increases the friction to ensure that the second pile foundation does not shift during the docking and welding process.

[0054] S3: Start motor 14 drives threaded rod 15 to rotate, causing moving plate 17 and moving plate 2 18 to move in opposite directions, so that the hollow elastic cleaning ring 19 fits against the outer side of the pile foundation docking end. Rotate adjustment disc 38 to drive adjustment column 36 to rotate. Through the cooperation of inclined protrusion 39 and inclined protrusion plate 2 40, the position of moving plate 2 18 is finely adjusted to ensure the verticality and coaxiality of the axis of the pile foundation at both ends. Motor 14 drives threaded rod 15 to achieve coarse positioning of the moving plate, and the cooperation of inclined protrusion and inclined protrusion plate achieves fine adjustment. The dual adjustment ensures that the coaxiality error of the pile foundation docking is less than 0.5‰, avoiding stress concentration after welding.

[0055] S4: readjust the lifting components again to keep the base plate 2 in contact with the ground, and fully extend the telescopic column 1 24 and telescopic column 2 25 to provide secondary support for the equipment and ensure the stability of the equipment during the welding process; after the telescopic columns are fully extended, they form rigid support, which, together with the wear-resistant anti-slip plate of the long ship 3, maximizes the grounding area of ​​the equipment and ensures that the equipment is vibration-free and tilt-free during the welding process.

[0056] S5: The high-pressure air pump 45 is started. High-pressure inert gas is sprayed out from the high-pressure jet micro-hole 41 through the air passage 43 and connecting pipe 42 to blow away the mud, dust and impurities at the weld joint of the pile foundation. The workers then perform welding operations on the joint ends of the two pile foundation sections. The hollow elastic cleaning ring 19 and the protective cylinder 51 prevent welding slag from splashing. The high-pressure inert gas forms a high-speed airflow to accurately blow away impurities at the weld joint, while creating an inert atmosphere around the weld joint to reduce welding oxidation. The hollow elastic cleaning ring 19 and the protective cylinder 51 form a closed protective space to prevent welding slag from splashing.

[0057] S6: After welding is completed, start the high-pressure infusion pump 60 and the electromagnetic control valve 61. The water-based inorganic zinc-rich rust inhibitor in the storage tank 59 is atomized and sprayed out from the atomizing spray hole 56 through the liquid guide pipe 58, disc 53 and delivery pipe 57. The filter screen filters out impurities and the rust inhibitor is evenly covered on the weld surface to form a protective film. The high-pressure infusion pump 60 provides the spray pressure and the atomizing spray hole 56 makes the rust inhibitor evenly cover the weld in a mist. The water-based inorganic zinc-rich rust inhibitor is quickly cured to form a dense zinc layer protective film, which isolates air and moisture and prevents the weld from rusting.

[0058] S7: After the weld protection is completed, turn off the high-pressure air pump 45, the high-pressure liquid pump 60 and the electromagnetic control valve 61 in sequence; start the motor 14 and the motor 28 to rotate in the opposite direction, driving the moving plate 17, the moving plate 28 and the L-shaped moving plate 30 to reset; start the hydraulic pile clamping component 7 to continue pressing the completed pile body into the ground; repeat steps S1-S6 to complete the subsequent pile splicing construction.

[0059] The circuits and electronic components, modules and controllers, or the heat dissipation holes and maintenance doors in the space of the adapted electrical equipment are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated. The content protected by this application does not involve improvements to software and methods or heat dissipation and maintenance.

[0060] During use, the hydraulic cylinder 22 and hydraulic rod 23 are activated to extend and retract, driving the static pressure pile driver 1 to rise and fall as a whole. The sliding cooperation between the telescopic column 24 and telescopic column 25 increases support, ensuring the accuracy of pile driving and welding operations. Then, the motor 28 is started, driving the threaded rod 27 to rotate. Because the threaded rod 27 has oppositely rotating threads on both sides, the threaded block 29 moves synchronously in opposite directions along the threaded rod 27. The threaded block 29 drives the L-shaped sliding plate 30 to slide along the track 32, realizing the opening and closing of the clamping block 34, thus adapting to pile foundations of different diameters. The anti-slip rubber pad on the inner side of the clamping block 34 increases friction, preventing the pile foundation from slipping during clamping, pile driving, and welding. The motor 14 drives the threaded rod 15 to rotate, causing the reverse threaded structures on both sides of the column 16 to move the moving plates 17 and 18 in opposite directions. The hollow elastic cleaning ring 19 fits against the outer side of the pile foundation, achieving initial positioning. Rotating the adjusting disc 38 drives the adjusting column 36 to rotate, causing the inclined protrusion 39 and the inclined protrusion 40 to have relative displacement. The lateral position of the moving plate 18 is finely adjusted through the guiding action of the inclined surface, thereby correcting the verticality of the pile foundation axis and ensuring the coaxiality of the two pile foundation sections. The spring 46 plays a buffering and resetting role during the movement of the moving plates, preventing damage to the components. In addition, after the moving plates 17 and 18 close in opposite directions, the hollow elastic cleaning ring 19 forms a ring. The protective ring, together with the protective cylinder 51 and the spray protection plate 55 below, forms a closed welding protection space to prevent high-temperature welding slag from splashing onto other parts of the equipment. The conical support ring 63 on the protective cylinder 51, through the cooperation of the transmission pin 69 and the drum cone 72, can adaptively adjust its position according to the pile diameter to ensure uniform protective gaps. Finally, after the high-pressure air pump 45 is started, a high-pressure airflow is generated, which is introduced into the air passage 43 in the moving plate 17 and the moving plate 2 18 through the air guide pipe 44, and then enters the hollow arc plate of the hollow elastic cleaning ring 19 through the connecting pipe 42. The high-pressure inert gas filled in the hollow arc plate is superimposed with the airflow input by the high-pressure air pump 45, and is ejected from the high-pressure jet micro-hole 41 as a high-speed airflow to clean the weld of the pile joint. The weld is thoroughly purged to remove adhering dirt, dust, and impurities, preventing defects such as incomplete welds and slag inclusions. After welding, the high-pressure pump 60 is activated and the electromagnetic control valve 61 is opened. The water-based inorganic zinc-rich rust inhibitor in the storage tank 59 enters the disc 53 under pressure through the guide pipe 58. The rust inhibitor is distributed to each delivery pipe 57 through the internal channels of the disc 53 and finally atomized and sprayed out from the atomizing spray hole 56, evenly covering the weld surface. The filter screen inside the atomizing spray hole 56 can filter impurities in the rust inhibitor to avoid clogging the spray hole and ensure uniform spraying. The water-based inorganic zinc-rich rust inhibitor can quickly solidify to form a dense protective film, isolating air and moisture, preventing weld oxidation and corrosion, and extending the durability of the pile foundation connection.

[0061] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and 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.

Claims

1. A construction device for highway bridge pile foundations, characterized in that, The system includes a static pile driver (1), a base plate (2) below the static pile driver (1), long boats (3) on both sides of the base plate (2), and the static pile driver (1) is connected to the long boats (3) on both sides through lifting components. The static pile driver (1) and the base plate (2) are respectively provided with through hole one (4) and through hole two (5). The static pile driver (1) is equipped with a crane (6) and a hydraulic pile clamping component (7). A protective component is provided between the static pile driver (1) and the base plate (2) below the hydraulic pile clamping component (7). The hydraulic clamping component (7) includes a fixing plate (8), a through hole three (9) in the middle of the fixing plate (8), and hydraulic rods two (10) at the center of both sides of the top of the fixing plate (8). A matching hydraulic cylinder two (11) is provided on the upper part of the hydraulic rod two (10), and a gantry frame (12) is provided at the bottom of the hydraulic cylinder two (11). The gantry frame (12) is mounted on both sides above the through hole one (4). The protective components include a vertical plate (13) fixed to one side of the top of the base plate (2). The vertical plate (13) is equipped with a motor (14) on both sides away from the through hole (5). The output end of the motor (14) is connected to an output shaft. The output shaft passes through the vertical plate (13) and is equipped with a threaded rod (15) at its end. A column (16) is fitted on the threaded rod (15) at the center position on the side of the through hole (5). The column (16) is fixed to the top of the base plate (2). On both sides of the column (16) on the threaded rod (15), there are opposite threaded structures. The threaded structures are respectively equipped with a threaded moving plate (17) and a moving plate (18). Hollow elastic cleaning rings (19) are provided inside the moving plate (17) and the moving plate (18). A ring-shaped spray protection component is provided below the hollow elastic cleaning ring (19). The vertical plate (13) has a sloping convex plate (35) at the center of one side of the movable plate (18). The sloping convex plate (35) away from the vertical plate (13) has an adjusting column (36). An adjusting rod (37) is inserted through the middle of the adjusting column (36). The bottom of the adjusting rod (37) is movably connected to the top of the base plate (2). An adjusting plate (38) is provided at the top of the adjusting rod (37). Sloping protrusions (39) are provided on both sides of the adjusting column (36). The movable plate (18) has a sloping convex plate (40) at the center of one side of the sloping protrusion (39). The annular spray protection assembly includes a lower guide plate (50). A protective cylinder (51) is inserted through the middle of the lower guide plate (50). An upper guide plate (52) is provided at the top of the protective cylinder (51). A disc (53) is provided at the top of the upper guide plate (52). A through hole (4) is provided in the middle of the disc (53). (54) The top of the disc (53) is provided with several spray protection plates (55). The inner wall of the spray protection plate (55) is provided with atomizing spray holes (56). The outlet end of the atomizing spray hole (56) is provided with a filter screen. A delivery pipe (57) is inserted inside the spray protection plate (55). One end of the delivery pipe (57) is connected to the atomizing spray hole (56), and the other end of the delivery pipe (57) passes through the top of the disc (53) and the interior of the disc (53). The disk (53) is connected to a liquid guide pipe (58) on one side, which passes through the moving plate (17). The side of the liquid guide pipe (58) away from the disk (53) is connected to a liquid storage tank (59), which is fixed on the top of the column (16) on the other side. A high-pressure pump (60) and an electromagnetic control valve (61) are provided on the liquid guide pipe (58). The liquid storage tank (59) contains water-based inorganic zinc-rich rust inhibitor.

2. The construction equipment for highway bridge pile foundations according to claim 1, characterized in that, The lifting component includes a second horizontal plate (20), and a first horizontal plate (21) is provided at both ends of the second horizontal plate (20). The inner wall of the first horizontal plate (21) is fixed to both sides of the side of the static pressure pile driver (1). A first hydraulic cylinder (22) is provided on the outside of the first horizontal plate (21). A matching first hydraulic rod (23) is provided inside the first hydraulic cylinder (22). The first hydraulic rod (23) passes through the first hydraulic cylinder (22) and is fixed at the bottom on the long boat (3).

3. The construction equipment for highway bridge pile foundations according to claim 2, characterized in that, The bottom plate (2) has a telescopic column 1 (24) at the center of both sides of the top. The telescopic column 1 (24) has a matching telescopic column 2 (25) inside it. The telescopic column 2 (25) passes through the telescopic column 1 (24) and its top is fixed to the bottom of the horizontal plate 2 (20).

4. The construction equipment for highway bridge pile foundations according to claim 3, characterized in that, The top of the fixed plate (8) is provided with two columns (26) at both ends. A threaded rod (27) is provided between the columns (26). One end of the threaded rod (27) is electrically connected to a motor (28) installed on the outside of the column (26). The threaded rod (27) is provided with two opposite threaded structures on both sides. The threaded structures are provided with threaded blocks (29) with threaded engagement. The top of the threaded block (29) is provided with a symmetrical L-shaped moving plate (30). The bottom of the L-shaped moving plate (30) is provided with a slider (31) on the side away from the threaded rod (27). The bottom of the slider (31) is provided with a sliding engagement track (32). The bottom of the track (32) is provided with a support platform (33). The bottom of the support platform (33) is fixed to the top side of the fixed plate (8). The center of the bottom of the L-shaped moving plate (30) is provided with a symmetrical clamping block (34).

5. The construction equipment for highway bridge pile foundations according to claim 4, characterized in that, The hollow elastic cleaning ring (19) is composed of two hollow arc-shaped plates. The interior of the arc-shaped plates is filled with high-pressure inert gas. The inner wall of the arc-shaped plates is provided with several high-pressure jet micro-holes (41). The outer wall of the arc-shaped plates is connected to several connecting pipes (42). The side of the connecting pipe (42) away from the arc-shaped plates is connected to one end of the air passage (43) provided in the moving plate one (17) and the moving plate two (18). The other side of the air passage (43) is connected to the air guide pipe (44). The side of the air guide pipe (44) away from the connecting pipe (42) passes through the moving plate one (17) and the moving plate two (18) and is connected to the high-pressure air pump (45) installed on the top of the column one (16) on one side.

6. The construction equipment for highway bridge pile foundations according to claim 5, characterized in that, The first movable plate (17) and the second movable plate (18) are T-shaped structures. A spring (46) is sleeved between the first movable plate (17) and the first movable plate (18) and the first column (16) and on the first threaded rod (15). A V-groove (47) is provided at the center of the corresponding side of the first movable plate (17) and the second movable plate (18). A first groove (48) is provided at the center of the inner side of the V-groove (47). A number of connectors (49) are provided on the inner wall of the first groove (48). The connecting pipe (42) is sealed to the air passage (43) through the connectors (49).

7. The construction equipment for highway bridge pile foundations according to claim 6, characterized in that, The upper and lower sides of the protective cylinder (51) are provided with strip holes (62). A conical support ring (63) is sleeved on the outer side of the strip hole (62) on the protective cylinder (51). Limiting holes (64) are provided on both sides of the conical support ring (63). A sandwich layer is provided inside the conical support ring (63). Several first inclined surfaces (65) and first planes (66) are provided on the outer wall of the conical support ring (63). A second inclined surface (67) and a second plane (68) are provided between adjacent sets of first inclined surfaces (65) and first planes (66). A transmission pin (69) is inserted in the limiting hole (64). The outer end of the transmission pin (69) passes through the strip hole (62) and is provided with a limiting block. A return spring (70) is sleeved on the transmission pin (69) inside the sandwich layer. The bottom of the upper guide plate (52) and the top of the lower guide plate (50) are provided with a second groove (71), and a matching drum cone (72) is provided in the second groove (71) and on the side of the transmission pin (69).

8. A construction method for highway bridge pile foundations, using the construction equipment for highway bridge pile foundations as described in claim 7, comprising the following steps: S1: Drive the hydraulic rod (23) to extend and retract through the hydraulic cylinder (22) of the lifting unit, and coordinate with the telescopic column (24) and the telescopic column (25) to level and stabilize the static pressure pile driver (1). Use the crane (6) to lift the first section of the pile body into the through hole (9) of the hydraulic pile clamping component (7). Start the hydraulic cylinder (11) to drive the hydraulic rod (10) to press down, press the pile body into the ground until the top is exposed at the preset height, and stop the pile pressing. S2: The second pile body is lifted by the crane (6) and coaxially connected with the end of the first pile body. The second motor (28) is started to drive the second threaded rod (27) to rotate, which drives the threaded blocks (29) on both sides and the L-shaped moving plate (30) to move towards the middle at the same time. The second pile body is clamped and fixed by the clamping block (34). S3: Start motor one (14) to drive threaded rod one (15) to rotate, which drives moving plate one (17) and moving plate two (18) to move in opposite directions, so that the hollow elastic cleaning ring (19) fits against the outside of the pile foundation docking end. Rotate the adjustment plate (38) to drive the adjustment column (36) to rotate. Through the cooperation of inclined protrusion (39) and inclined protrusion plate two (40), the position of moving plate two (18) is finely adjusted to ensure the verticality and coaxiality of the axis of the pile foundation at both ends. S4: Adjust the lifting components again to keep the base plate (2) in contact with the ground, and extend the first telescopic column (24) and the second telescopic column (25) to provide secondary support for the equipment and ensure the stability of the equipment during the welding process; S5: Start the high-pressure air pump (45). High-pressure inert gas is sprayed out from the high-pressure jet micro-hole (41) through the air passage (43) and connecting pipe (42) to blow the weld joint of the pile foundation under high pressure and remove soil, dust and impurities. The staff performs welding operation on the joint end of the two pile foundations. The hollow elastic cleaning ring (19) and the protective cylinder (51) block the welding slag from splashing. S6: After welding is completed, start the high-pressure infusion pump (60) and the electromagnetic control valve (61). The water-based inorganic zinc-rich rust inhibitor in the storage tank (59) is atomized and sprayed out from the atomizing spray hole (56) through the liquid guide pipe (58), the disc (53) and the delivery pipe (57). The filter screen filters out impurities and the rust inhibitor is evenly covered on the weld surface to form a protective film. S7: After the weld protection is completed, turn off the high-pressure air pump (45), high-pressure liquid pump (60) and electromagnetic control valve (61) in sequence; start motor one (14) and motor two (28) to rotate in opposite directions, driving moving plate one (17) and moving plate two (18) and L-shaped moving plate (30) to reset; start the hydraulic pile clamping component (7) to continue pressing the completed pile body into the ground; repeat steps S1-S6 to complete the subsequent pile splicing construction.

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