Pile foundation reinforcing structure and method

Abstract

The invention belongs to the technical field of pile foundation reinforcement, and particularly relates to a pile foundation reinforcement structure and method. Comprising pile foundations; the pile foundation is composed of a pile body and a bearing platform. A through pile pressing hole is formed in the top of the bearing platform, and a pile body is arranged in the pile pressing hole; a pressure reinforcing device is arranged on the bearing platform; the pressing reinforcing device comprises two pressing bases installed on the top of the bearing platform, and the two pressing bases are symmetrically arranged with the pile pressing hole as the symmetry axis. The opposite faces of the two pressure applying bases are jointly connected with a rectangular frame, and the bottom of the rectangular frame makes contact with the top of the bearing platform. A displacement base is mounted on one of the opposite surfaces of the rectangular frame; the driving angle of the pile body is prevented from deviating through the closing and moving positioning unit, so that the pile body can be accurately driven into the ground, the bearing capacity, stability and durability of the pile foundation can be improved, the limitation of the pile foundation during reinforcement is reduced, and the reinforcement effect of the pile foundation is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of pile foundation reinforcement, and specifically relates to a pile foundation reinforcement structure and a reinforcement method. Background Art

[0002] A deep foundation consisting of a pile and a pile cap connected to the top of the pile (referred to as cap) or a single pile foundation connected by a column and a pile foundation, referred to as a pile foundation, is easily affected by factors such as changes in geological conditions or design and construction defects, resulting in the bearing capacity, stability or durability of the pile foundation being affected, so the pile foundation needs to be reinforced; however, the existing pile foundation reinforcement structure generally adopts the pile supplement method when in use, and a new pile is added near the original pile or at a suitable position to share the upper load, but the movement state and position of the pile body cannot be monitored during the downward movement. If the driving angle of the pile body deviates, it will not only fail to solve the problem, but also affect the normal use of the pile foundation, making the pile foundation more limited during reinforcement, thereby reducing the reinforcement effect of the pile foundation. Summary of the invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a pile foundation reinforcement structure and a reinforcement method, which effectively solve the problems in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pile foundation reinforcement structure, comprising a pile foundation; the pile foundation is composed of a pile body and a cap; the top of the cap is provided with a through pile-pressing hole, in which a pile body is provided; a pressure reinforcement device is provided on the cap, and the pressure reinforcement device is used to press the pile body down into the ground; the pressure reinforcement device comprises two pressure bases installed on the top of the cap, and the two pressure bases are symmetrically arranged with the pile-pressing hole as a symmetry axis; the opposite back surfaces of the two pressure bases are connected with a rectangular frame, and the bottom of the rectangular frame is in contact with the top of the cap; A displacement base is installed on one of the opposite back surfaces of the rectangular frame, and displacement screws are provided on the opposite surfaces of the two displacement bases. A displacement hexagonal block is threadedly connected to the displacement screw, and a combined positioning unit is provided on the displacement hexagonal block. The combined positioning unit is used to limit the movement of the pile body; a T-shaped base is installed on the outer wall of the rectangular frame, and the T-shaped base is not arranged on the same side as the displacement base; an L-shaped base is installed on the top of the T-shaped base, and a driving shaft is provided on the L-shaped base, and a positioning and quantitative mechanism is provided on the driving shaft, and the positioning and quantitative mechanism is used to monitor the movement state of the pile body.

[0005] Preferably, the combined positioning unit includes two symmetrical guide cylinders, which are fixedly installed on the side of the displacement hexagonal block away from the pile body; the guide cylinder passes through the side of the displacement base close to the pile body; the displacement base and the guide cylinder are slidably matched; the opposite back sides of the two displacement bases are installed with active pulleys; the top of the displacement hexagonal block is installed with a conversion base plate, and the conversion base plate is provided with a rotation angle adjustment component; the rotation angle adjustment component includes a rotating shaft installed on the conversion base plate, and a positioning cross plate is installed at one end of the rotating shaft close to the pile body, and two symmetrical positioning sliding columns are connected through the side of the positioning cross plate, and the positioning sliding columns are slidably matched with the positioning cross plate; the ends of the two positioning sliding columns close to the pile body are commonly connected with a positioning U frame.

[0006] Preferably, a lubrication pad is provided on the inner side surface of the positioning U frame, and the pile body is located on the moving path of the lubrication pad; the inner side surface of the positioning U frame fits the pile body; a positioning spring is sleeved on the positioning slide column, one end of the positioning spring is fixedly connected to the positioning U frame, and the other end is fixedly connected to the positioning cross plate, a positioning square column is provided on the side of the positioning cross plate close to the pile body, and a main contact is installed on the positioning square column; a positioning square tube is provided on the side of the positioning U frame away from the pile body, an auxiliary contact is provided on the inner bottom surface of the positioning square tube, and the auxiliary contact is electrically connected to the main contact.

[0007] Preferably, a torque slide column is also installed on the top of the pressure base, a torque slider is slidably installed on the torque slide column, and the opposite surfaces of the two torque sliders are commonly connected to a hydraulic jack; the side of the hydraulic jack close to the pedestal is the output end, and a pressure block is installed on the output end of the hydraulic jack, and a rubber pad is provided on the side of the pressure block close to the pedestal; the top of the pile body is located on the moving path of the rubber pad.

[0008] Preferably, a driving motor is installed on the side of the T-shaped base away from the rectangular frame, and a driving bevel gear is installed on the output end of the driving motor. The driving bevel gear is meshingly connected with a rotating bevel gear located on its side, and a compound-moving shaft is installed on the rotating bevel gear. Compound-moving pulleys are installed at both ends of the compound-moving shaft, and a transmission belt is connected to the compound-moving pulley, which is connected to the active pulley; the transmission belt is slidably matched with the compound-moving pulley and the active pulley; a compound-moving base is installed on the compound-moving shaft, and the compound-moving base is fixedly installed on the rectangular frame.

[0009] Preferably, the rotation angle adjustment assembly also includes a locking gear installed at one end of the rotating shaft away from the pile body, and a swivel ring is installed on the side of the locking gear; a guide square column is installed on the top of the conversion base plate, and a guide slider is slidably connected to the guide square column, and a locking cross block is installed on the guide slider, and two symmetrical locking sliding columns are installed through the top of the locking cross block, and one end of the two locking sliding columns near the locking gear is commonly connected to the locking tooth block, and the locking gear is located in the moving path of the locking tooth block and the two mesh with each other; the locking sliding column and the locking cross block slidably cooperate; a guide spring is sleeved on the guide square column, one end of the guide spring is fixedly connected to the conversion base plate, and the other end is fixedly connected to the guide slider; a locking spring is sleeved on the locking sliding column, one end of the locking spring is fixedly connected to the locking cross block, and the other end is connected to a locking limit plate, and the locking limit plate is fixedly connected to one end of the locking sliding column away from the locking tooth block.

[0010] Preferably, the positioning and quantitative measurement mechanism includes an auxiliary bevel gear installed on the driving shaft, and the auxiliary bevel gear is meshingly connected with the driving bevel gear; a double-end cam is installed at one end of the driving shaft away from the auxiliary bevel gear; limited motion bases are installed on both sides of the L-shaped base, and the opposite surfaces of the two limited motion bases are penetrated and connected with limited motion cylinders, and the limited motion cylinders are slidably matched with the limited motion bases; limited motion U-seats are installed at the opposite ends of the two limited motion cylinders, and a trigger round wheel is installed in the limited U-seat, and the side walls of the two trigger round wheels are in contact with the side walls of the double-end cam.

[0011] Preferably, a limit spring is sleeved on the limit cylinder, one end of the limit spring is fixedly connected to the limit U seat, and the other end is fixedly connected to the limit base; one end of a bent round rod is installed at the opposite ends of the two limit cylinders, and a movable square plate is installed at the other end of the bent round rod, and the two movable square plates are symmetrically arranged with the pile body as the symmetry axis; the movable square plate and the positioning U frame are on the same side; a number of horizontally and vertically arranged sensing patches are provided on the opposite surfaces of the two movable square plates; guide square plates are installed on both sides of the movable square plates, guide cylinders are fixedly installed on the guide square plates, guide bases are slidably connected to the guide cylinders, and the guide bases are fixedly connected to the pressure bases.

[0012] Preferably, a driving force boosting module is also provided on the positioning U frame; the driving force boosting module includes a pressure base arranged on the top and bottom of the positioning U frame, a pressure square column is connected through the pressure base on the side close to the pile body, a pressure square seat is installed at one end of the pressure square column close to the pile body, and a pressure limit plate is installed at the end away from the pile body; a plurality of driving wheels are arranged in the pressure square seat, and friction pads are arranged on the outer side walls of the driving wheels, and the pile body is located on the moving path of the friction pads; the driving wheel contacts the pile body earlier than the positioning U frame; a rotating motor is installed on the side of the pressure square seat, and the output end of the rotating motor is connected to the driving wheel; a pressure spring is sleeved on the pressure square column, one end of the pressure spring is connected to the pressure limit plate, and the other end is connected to the pressure base.

[0013] The present invention also provides a pile foundation reinforcement method, comprising the following steps: S1. Install the pressure base on the cap, put the pile body to be reinforced into the pile hole, and clamp the pile by operating the combined positioning unit; S2, using a pressure reinforcement device to drive the pile into the ground; S3, under the action of the position detection and quantitative mechanism, is used to monitor the movement state and position of the pile body.

[0014] Compared with the prior art, the present invention has the following beneficial effects: (1) Since the threads on the two displacement screws are opposite, the two displacement hexagonal blocks move relative to each other, and under the action of the conversion base plate and the rotating shaft, the positioning cross plate is driven to move toward the direction of the pile body, so that the positioning U frame is driven to move through the positioning slide column and the positioning spring, so that the two positioning U frames move relative to each other, so that the pile body to be driven into the ground can be clamped, and the pile body can be limited to avoid shaking or dislocation of the pile body when moving downward, thereby improving the stability of the pile body when being driven into the ground, and at the same time avoiding deviation in the driving angle of the pile body, so that the pile body can be accurately driven into the ground, which can improve the bearing capacity, stability and durability of the pile foundation, thereby reducing the limitations of the pile foundation during reinforcement, and improving the reinforcement effect of the pile foundation; (2) Since the driving wheel contacts the pile body earlier than the positioning U-frame, the driving wheel contacts the pile body first, so that the position of the pile body can be positioned in advance, thereby improving the positioning effect of the reinforcement structure on the pile body; through the continued movement of the positioning U-frame, the pressure base on the positioning U-frame moves within the upper limit of the pressure square column, so that the pressure spring is in a buffering state, thereby strengthening the contact strength of the driving wheel on the pile body. The friction pad also strengthens the friction between the driving wheel and the pile body, so that the pile body can move down smoothly, which is used to guide the movement of the pile body and improves the smoothness of the pile body when moving down. At this time, by starting the rotary motor, its output end drives the driving wheel to rotate, so that it can provide power for the downward movement of the pile body, which can be used to provide additional power for the downward movement of the pile body. At the same time, the rotation of the driving wheel can be limited to prevent the pile body from falling into the soil due to gravity and other factors when it is not needed to be driven, so that the driving depth of the pile body can be accurately controlled, further improving the reinforcement effect of the pile foundation, thereby reducing the limitations of the pile foundation during reinforcement; (3) The pressure base is installed on the bearing platform, and the pile body to be reinforced is placed in the pile hole. Then, the hydraulic jack is started so that its output end can drive the pressure block to move downward so that it contacts the top of the pile body, thereby applying downward pressure to the pile body, so that the pile body can be driven into the ground, thereby completing the reinforcement operation of the pile foundation; at the same time, the rubber pad can also enhance the friction between the pressure block on the output end of the hydraulic jack and the pile body, so as to avoid the slippage caused by insufficient friction when the two contact, which causes the downward position of the pile body to shift, thereby improving the reinforcement effect of the pile foundation; at the same time, by making the moment slider slide on the moment slider, the position of the hydraulic jack can be adjusted, so that it can press down on the pile body at different positions, reducing the limitations in the reinforcement process; at the same time, when the moment slider slides, the provided pin can be used to fix the hydraulic jack, so as to avoid the position of the hydraulic jack shifting when in use; (4) When the positioning U-frame contacts the pile body, the lubricating pad inside the positioning U-frame will contact the pile body, reducing the friction between the positioning U-frame and the pile body. This allows the positioning U-frame to limit the movement of the pile body while preventing the pile body from being unable to move down smoothly due to excessive friction between the two, thereby improving the reinforcement effect of the pile foundation. When the positioning U-frame has contacted the pile body, the hexagonal block continues to move, causing the positioning cross plate to move within the upper limit of the positioning slide column, putting the positioning spring in a buffering state, thereby strengthening the contact strength between the positioning U-frame and the pile body, and preventing the pile body from being damaged by non-human factors during the process of being driven into the ground. The factors such as the shaking or dislocation of the pile body caused by the factors such as the swaying or dislocation of the pile body improve the stability of the pile body when it moves, thereby further reducing the limitations of the pile foundation during reinforcement; as the distance between the positioning cross plate and the positioning U frame continues to decrease, the positioning square column gradually enters the positioning square tube, and then the auxiliary contact piece and the main contact piece are in contact, thereby sending a signal to the controller to notify the staff that the pile body has been positioned, so that the hydraulic jack can be controlled to drive the positioned pile body into the ground, avoiding the occurrence of safety accidents caused by driving the pile body into the ground before positioning it, such as tipping or tilting, etc., thereby improving the safety of pile foundation reinforcement; (5) Pull the guide slider upward to move it to the upper limit position on the guide square column, so that the guide spring is in a buffering state, and then drive the locking cross block to move, so that it drives the locking tooth block to move within the limit position under the action of the locking slide column and the locking spring, so that it no longer engages with the locking gear, thereby releasing the limit setting of the locking gear. At this time, by rotating the swivel on the locking gear, the rotating shaft on the locking gear can be driven to rotate on the conversion base plate, thereby driving the positioning cross plate to rotate, so that the positioning U frame on it can rotate, and the pile body is clamped by the positioning U frame, thereby driving the clamped pile body to rotate, so that the driving angle of the pile body can be adjusted, so that it can be driven into the ground at different angles, so that the pile body can be driven in different fields. The pile foundation is reinforced under the scene, thereby improving the reinforcement effect of the pile foundation; when the angle adjustment of the pile body is completed, the locking tooth block is driven to reset and move by the reset of the guide spring, so that it meshes with the locking gear, thereby setting its limit position, avoiding the angle deviation of the pile body when it is driven into the ground, reducing the limitations during pile foundation reinforcement, and improving the stability of the pile body during reinforcement; because the strength of the guide spring is greater than that of the locking spring, when the locking tooth block has contacted the locking gear, the guide spring continues to reset, so that the locking cross block moves to the upper limit of the locking sliding column, so that the locking spring is in a buffering state, thereby strengthening the contact strength between the locking tooth block and the locking gear, and further improving the reinforcement effect of the pile foundation; (6) Due to the continuous rotation of the double-end cam, the two actuating circular wheels are constantly in a synchronous back-to-back moving state. Under the action of the bent round rod, the movable square plate is continuously moved toward the direction of the pile body, and there are several evenly arranged sensing patches on the surface of the movable square plate. When the two movable square plates move relative to each other, they are in contact with the pile body, so that the side of the pile body contacts the sensing patches on the side of the movable square plate, so that the movement state and position of the pile body can be monitored. If there is a problem with the angle of the pile body during the driving process, some sensing patches will not be able to contact the pile body. If the controller cannot receive the signal sent by one of the sensing patches, it means that the movement position of the pile body has deviated, so the staff can be notified in time to avoid the deviation of the pile driving process, which leads to poor use effect of the pile foundation and improves the reinforcement effect of the pile foundation. It is worth mentioning The purpose is to prevent the movable square plate from contacting the pile body for a long time and causing serious wear through the reciprocating movement of the movable square plate, thereby improving the service life of the reinforced structure; at the same time, when the movable square plate is moving, it is moved within the upper limit of the guide base through the guide cylinder on the guide square plate, so as to limit the movement of the movable square plate, thereby preventing the movable square plate from shaking or dislocating during movement, which may cause the induction patch on it to fail to accurately contact the pile body and cause deviation in the monitoring result; and when the movable square plate moves toward the direction of the pile body and contacts the pile body, several induction patches on it contact the pile body, and a signal will be sent to the controller when the two contact each other. If any piece or area of ​​the induction patch does not contact the pile body, the controller cannot receive a specific signal, indicating that there is a deviation in the downward movement of the pile body, thereby improving the reinforcement effect of the pile foundation and further reducing the limitations during reinforcement. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0016] In the attached picture: Figure 1 This is one of the overall structural schematic diagrams of the present invention; Figure 2 This is a schematic diagram of the structure of the driving motor of the present invention; Figure 3 It is an exploded view of the moment slider of the present invention; Figure 4 This is a schematic diagram of the structure of the movable square plate of the present invention; Figure 5 This is the second schematic diagram of the overall structure of the present invention; Figure 6 This is a schematic diagram of the positioning U-frame structure of the present invention; Figure 7 It is a schematic diagram of the displacement screw structure of the present invention; Figure 8 This is a schematic diagram of the locking gear structure of the present invention; Fig. 9 It is a schematic diagram of the double-end cam structure of the present invention; Fig.10 This is a schematic diagram of the driving wheel structure of the present invention; In the figure: 1. pressure base; 2. rectangular frame; 3. displacement base; 4. displacement screw rod; 5. displacement hexagonal block; 6. T-type base; 7. L-type base; 8. driving shaft; 9. guide cylinder; 10. active pulley; 11. conversion base plate; 12. rotating shaft; 13. positioning horizontal plate; 14. positioning slide column; 15. positioning U frame; 16. lubricating pad; 17. positioning spring; 18. positioning square column; 19. main contact piece; 20. positioning square tube; 21. auxiliary contact piece; 22. torque slide column; 23. torque slider; 24. hydraulic jack; 25. pressure block; 26. rubber pad; 27. driving motor; 28. driving bevel gear; 29. ​​rotating bevel gear; 30. compound shaft; 31 , compound pulley; 32, transmission belt; 33, compound base; 34, locking gear; 35, guide square column; 36, guide slider; 37, locking cross block; 38, locking slide column; 39, locking tooth block; 40, guide spring; 41, locking spring; 42, auxiliary bevel gear; 43, double-end cam; 44, limit base; 45, limit cylinder; 46, limit U seat; 47, trigger round wheel; 48, limit spring; 49, bent round rod; 50, movable square plate; 51, guide square plate; 52, guide cylinder; 53, guide base; 54, pressing base; 55, pressing square column; 56, pressing square seat; 57, driving wheel; 58, friction pad; 59, rotating motor; 60, pressing spring. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0018] Example, by Figures 1 to 10The present invention includes a pile foundation; the pile foundation consists of a pile body and a cap; the top of the cap is provided with a through pile pressure hole, and the pile body is provided in the pile pressure hole; the cap is provided with a pressure reinforcement device, and the pressure reinforcement device is used to press the pile body into the underground; the pressure reinforcement device includes two pressure bases 1 installed on the top of the cap, and the two pressure bases 1 are symmetrically arranged with the pile pressure hole as the symmetry axis; the back faces of the two pressure bases 1 are commonly connected with a rectangular frame 2, and the bottom of the rectangular frame 2 is in contact with the top of the cap; one of the back faces of the rectangular frames 2 is installed with a displacement base 3, and the opposite faces of the two displacement bases 3 are provided with a displacement screw 4, and the displacement screw 4 is threaded with a displacement hexagonal block 5, and the displacement hexagonal block 5 is provided with a combined positioning unit, and the combined positioning unit is used to limit Movement of the pile body; a T-shaped base 6 is installed on the outer wall of the rectangular frame 2, and the T-shaped base 6 is not arranged on the same side as the displacement base 3; an L-shaped base 7 is installed on the top of the T-shaped base 6, and a driving shaft 8 is provided on the L-shaped base 7, and a position detection and quantitative mechanism is provided on the driving shaft 8, and the position detection and quantitative mechanism is used to monitor the movement state of the pile body; a torque slide column 22 is also installed on the top of the pressure base 1, and a torque slider 23 is slidably installed on the torque slide column 22, and the opposite surfaces of the two torque sliders 23 are commonly connected to a hydraulic jack 24; the side of the hydraulic jack 24 close to the pedestal is the output end, and a pressure block 25 is installed on the output end of the hydraulic jack 24, and a rubber pad 26 is provided on the side of the pressure block 25 close to the pedestal; the top of the pile body is located on the moving path of the rubber pad 26; When reinforcing the pile foundation, it is only necessary to install the pressure base 1 on the bearing platform, put the pile body to be reinforced into the pile hole, and then start the hydraulic jack 24 so that its output end can drive the pressure block 25 to move downward so that it contacts the top of the pile body, thereby applying downward pressure to the pile body, so that the pile body can be driven into the ground, thereby completing the reinforcement operation of the pile foundation; at the same time, the friction between the pressure block 25 on the output end of the hydraulic jack 24 and the pile body can be strengthened by the provided rubber pad 26, so as to avoid the slippage caused by insufficient friction when the two contact, so that the downward position of the pile body is offset, thereby improving the reinforcement effect of the pile foundation; at the same time, by making the moment slider 23 slide on the moment slider 22, the position of the hydraulic jack 24 can also be adjusted, so that it can press down the pile body at different positions, reducing the limitations in the reinforcement process; at the same time, when the moment slider 23 slides, it can also be used to fix the hydraulic jack 24 through the provided pin to avoid the position of the hydraulic jack 24 being offset when in use.

[0019] The combined positioning unit of this embodiment includes two symmetrical guide cylinders 9, which are fixedly installed on the side of the displacement hexagonal block 5 away from the pile body; the guide cylinder 9 passes through the side of the displacement base 3 close to the pile body; the displacement base 3 and the guide cylinder 9 are slidably matched; the opposite back surfaces of the two displacement bases 3 are both installed with active pulleys 10; the top of the displacement hexagonal block 5 is installed with a conversion substrate 11, and the conversion substrate 11 is provided with a rotation angle adjustment component; the rotation angle adjustment component includes a The rotating shaft 12 on the pile body is provided with a positioning horizontal plate 13 at one end of the rotating shaft 12 close to the pile body, and two symmetrical positioning slide posts 14 are connected to the side of the positioning horizontal plate 13, and the positioning slide posts 14 slide with the positioning horizontal plate 13; the two positioning slide posts 14 are connected to a positioning U frame 1 at one end close to the pile body; the inner side of the positioning U frame 15 is provided with a lubrication pad 16, and the pile body is located on the moving path of the lubrication pad 16; the inner side of the positioning U frame 15 is in contact with the pile body; the positioning slide post 14 is provided with a positioning Spring 17, one end of the positioning spring 17 is fixedly connected to the positioning U frame 15, and the other end is fixedly connected to the positioning horizontal plate 13. A positioning square column 18 is provided on the side of the positioning horizontal plate 13 close to the pile body, and a main contact 19 is installed on the positioning square column 18; a positioning square tube 20 is provided on the side of the positioning U frame 15 away from the pile body, and an auxiliary contact 21 is provided on the inner bottom surface of the positioning square tube 20, and the auxiliary contact 21 is electrically connected to the main contact 19; a driving motor 27 is installed on the side of the T-shaped base 6 away from the rectangular frame 2, and the driving motor 27 A driving bevel gear 28 is installed on the output end, and the driving bevel gear 28 is meshedly connected with a rotating bevel gear 29 located on its side. A compound-moving shaft 30 is installed on the rotating bevel gear 29, and compound-moving pulleys 31 are installed at both ends of the compound-moving shaft 30. A transmission belt 32 is connected to the compound-moving pulley 31, and the transmission belt 32 is connected to the active pulley 10; the transmission belt 32 is slidably matched with the compound-moving pulley 31 and the active pulley 10; a compound-moving base 33 is installed on the compound-moving shaft 30, and the compound-moving base 33 is fixedly installed on the rectangular frame 2; During the reinforcement process, by starting the driving motor 27, the output end of the driving motor 27 drives the driving bevel gear 28 to rotate, so that the meshing rotating bevel gear 29 rotates, and then the two compound pulleys 31 are driven to rotate under the action of the compound rotating shaft 30, so that the active pulley 10 is driven to rotate through the transmission belt 32, so that the displacement screw 4 is driven to rotate, so that the threaded displacement hexagonal block 5 is limitedly moved at the displacement base 3 through the guide cylinder 9. Since the threads on the two displacement screws 4 are opposite, the two displacement hexagonal blocks 5 are relatively moved, and the positioning transverse is driven under the action of the conversion base 11 and the rotating shaft 12. The plate 13 moves toward the direction of the pile body, so that it can drive the positioning U frame 15 to move through the positioning slide column 14 and the positioning spring 17, so that the two positioning U frames 15 move relative to each other, so as to clamp the pile body to be driven into the ground, and limit the pile body, so as to avoid the pile body from shaking or dislocation when moving downward, thereby improving the stability of the pile body when being driven into the ground, and avoiding the deviation of the driving angle of the pile body, so that the pile body can be accurately driven into the ground, which can improve the bearing capacity, stability and durability of the pile foundation, thereby reducing the limitations of the pile foundation during reinforcement, so that the reinforcement effect of the pile foundation can be improved; At the same time, when the positioning U frame 15 contacts the pile body, the lubricating pad 16 in the positioning U frame 15 will contact the pile body, reducing the friction between the positioning U frame 15 and the pile body, so that the positioning U frame 15 can limit the movement of the pile body while avoiding excessive friction between the two that causes the pile body to be unable to move down smoothly, thereby improving the reinforcement effect of the pile foundation; when the positioning U frame 15 has contacted the pile body, the positioning cross plate 13 moves within the upper limit of the positioning sliding column 14 through the continued movement of the displacement hexagonal block 5, so that the positioning spring 17 is in a buffering state, thereby strengthening the contact strength between the positioning U frame 15 and the pile body, avoiding the pile body from being pushed into the ground due to The phenomenon of pile body shaking or dislocation caused by non-human factors improves the stability of the pile body when it moves, thereby further reducing the limitations of the pile foundation during reinforcement; as the distance between the positioning cross plate 13 and the positioning U frame 15 continues to decrease, the positioning square column 18 gradually enters the positioning square tube 20, and then the auxiliary contact piece 21 and the main contact piece 19 are in contact, thereby sending a signal to the controller to notify the staff, indicating that the pile body has been positioned, so that the hydraulic jack 24 can be controlled to drive the positioned pile body into the ground, avoiding the occurrence of safety accidents caused by driving the pile body into the ground before it is positioned, such as tipping or tilting, thereby improving the safety of pile foundation reinforcement.

[0020] The rotation angle adjustment assembly of this embodiment also includes a locking gear 34 installed at the end of the rotating shaft 12 away from the pile body, and a rotating ring is installed on the side of the locking gear 34; a guide square column 35 is installed on the top of the conversion base plate 11, and a guide slider 36 is slidably connected to the guide square column 35, and a locking horizontal block 37 is installed on the guide slider 36. Two symmetrical locking sliding columns 38 are installed on the top of the locking horizontal block 37. The two locking sliding columns 38 are connected to a locking tooth block 39 at one end close to the locking gear 34. The locking gear 34 is located at the bottom of the conversion base plate 11. The locking slide column 38 and the locking cross block 37 are in sliding cooperation with each other; the guide square column 35 is provided with a guide spring 40, one end of which is fixedly connected to the conversion substrate 11, and the other end is fixedly connected to the guide slider 36; the locking slide column 38 is provided with a locking spring 41, one end of which is fixedly connected to the locking cross block 37, and the other end is connected to the locking limit plate, which is fixedly connected to the end of the locking slide column 38 away from the locking tooth block 39; By pulling the guide slider 36 upward, it is moved to the upper limit position on the guide square column 35, so that the guide spring 40 is in a buffering state, and then the locking cross block 37 is driven to move, so that under the action of the locking slide column 38 and the locking spring 41, the locking tooth block 39 is driven to move to a limited position, so that it no longer meshes with the locking gear 34, thereby releasing the limit setting of the locking gear 34. At this time, by rotating the swivel on the locking gear 34, the rotating shaft 12 on the locking gear 34 is driven to rotate on the conversion base plate 11, thereby driving the positioning cross plate 13 to rotate, so that the positioning U frame 15 on it can rotate, and the pile body is clamped by the positioning U frame 15, so that the clamped pile body can be driven to rotate, so that the driving angle of the pile body can be adjusted, so that it can be driven into the ground at different angles, so that the pile body can be The pile foundation is reinforced in the scenario, which improves the reinforcement effect of the pile foundation; when the angle adjustment of the pile body is completed, by loosening the guide slider 36, the locking tooth block 39 is driven to reset and move through the reset of the guide spring 40, so that it engages with the locking gear 34, thereby setting its limit, avoiding the angle deviation of the pile body when it is driven into the ground, reducing the limitations during pile foundation reinforcement, and improving the stability of the pile body during reinforcement; because the strength of the guide spring 40 is greater than that of the locking spring 41, when the locking tooth block 39 has contacted the locking gear 34, the guide spring 40 continues to reset, so that the locking cross block 37 moves to the upper limit of the locking slide column 38, so that the locking spring 41 is in a buffering state, thereby strengthening the contact strength between the locking tooth block 39 and the locking gear 34, and further improving the reinforcement effect of the pile foundation.

[0021] The position checking and quantitative mechanism of this embodiment includes an auxiliary bevel gear 42 installed on the driving shaft 8, and the auxiliary bevel gear 42 is meshed and connected with the driving bevel gear 28; a double-end cam 43 is installed at one end of the driving shaft 8 away from the auxiliary bevel gear 42; limited motion bases 44 are installed on both sides of the L-shaped base 7, and the opposite surfaces of the two limited motion bases 44 are penetrated and connected with limited motion cylinders 45, and the limited motion cylinders 45 are slidably matched with the limited bases 44; limited motion U seats 46 are installed at the opposite ends of the two limited motion cylinders 45, and a triggering round wheel 47 is installed in the limited motion U seat 46, and the side walls of the two triggering round wheels 47 are both in contact with the side walls of the double-end cam 43; a limit spring 4 is sleeved on the limit cylinder 45 8. One end of the limit spring 48 is fixedly connected to the limit U seat 46, and the other end is fixedly connected to the limit base 44; the opposite ends of the two limit cylinders 45 are installed with one end of a bent round rod 49, and the other end of the bent round rod 49 is installed with a movable square plate 50, and the two movable square plates 50 are symmetrically arranged with the pile body as the symmetry axis; the movable square plate 50 and the positioning U frame 15 are on the same side; the opposite surfaces of the two movable square plates 50 are provided with a plurality of horizontally and vertically arranged sensing patches; guide square plates 51 are installed on both sides of the movable square plate 50, and a guide cylinder 52 is fixedly installed on the guide square plate 51, and a guide base 53 is slidably connected to the guide cylinder 52, and the guide base 53 is fixedly connected to the pressure base 1; When the driving bevel gear 28 rotates, it also drives the meshing auxiliary bevel gear 42 to rotate, and then drives the double-end cam 43 to rotate through the driving shaft 8, so that the protrusions at both ends constantly and synchronously contact the two contact circular wheels 47. If they contact, pressure is exerted on them, so that they move at the upper limit position on the limit base 44 through the limit cylinder 45 on the limit U seat 46, so that the limit spring 48 is in a buffering state, causing the two contact circular wheels 47 to move in opposite directions; when the double-end protrusions on the double-end cam 43 are no longer in contact with the two contact circular wheels 47, the pressure on them is reduced, and the limit spring 48 is released. The resetting can drive the two actuating circular wheels 47 to move relative to each other, that is, due to the continuous rotation of the double-end cam 43, the two actuating circular wheels 47 are constantly in a synchronous back-to-back moving state, and under the action of the bent round rod 49, the movable square plate 50 is constantly moved toward the direction of the pile body, and the surface of the movable square plate 50 has a number of evenly arranged sensing patches. When the two movable square plates 50 move relative to each other, they are in contact with the pile body, so that the side of the pile body contacts the sensing patches on the side of the movable square plate 50, so as to monitor the movement state and position of the pile body. If there is a problem with the angle of the pile body during the driving process, This makes it so that there will be a sensing patch that cannot contact the pile body. If the controller cannot receive the signal sent by one of the sensing patches, it means that the moving position of the pile body is deviated, so the staff can be notified in time to avoid the deviation in the driving process of the pile body, which leads to poor use effect of the pile foundation and improves the reinforcement effect of the pile foundation. It is worth mentioning that the reciprocating movement of the movable square plate 50 can avoid its long-term contact with the pile body and cause serious wear, thereby improving the service life of the reinforcement structure. At the same time, when the movable square plate 50 is moving, it passes through the guide cylinder 52 on the guide square plate 51 to move at the upper limit of the guide base 53. The movable square plate 50 can be moved to limit its movement, so as to prevent the movable square plate 50 from shaking or dislocating during movement, which may cause the sensing patch thereon to be unable to accurately contact the pile body and cause deviation in the monitoring result. When the movable square plate 50 moves toward the direction of the pile body and contacts the pile body, several sensing patches thereon are in contact with the pile body. When the two are in contact, a signal will be sent to the controller. If any piece or area of ​​the sensing patch does not contact the pile body, the controller cannot receive a specific signal, indicating that there is a deviation in the downward movement of the pile body, thereby improving the reinforcement effect of the pile foundation and further reducing the limitations during reinforcement.

[0022] The positioning U frame 15 of the present embodiment is also provided with a driving force boosting module; the driving force boosting module comprises a pressure base 54 arranged on the top and bottom of the positioning U frame 15, a pressure square column 55 is connected through the side of the pressure base 54 close to the pile body, a pressure square seat 56 is installed at one end of the pressure square column 55 close to the pile body, and a pressure limit plate is installed at the end away from the pile body; a plurality of driving wheels 57 are arranged in the pressure square seat 56, and a friction pad 58 is arranged on the outer wall of the driving wheel 57, and the pile body is located on the moving path of the friction pad 58; the driving wheel 57 contacts the pile body earlier than the positioning U frame 15; a rotary motor 59 is installed on the side of the pressure square seat 56, and the output end of the rotary motor 59 is connected to the driving wheel 57; a pressure spring 60 is sleeved on the pressure square column 55, one end of the pressure spring 60 is connected to the pressure limit plate, and the other end is connected to the pressure base 54; When the positioning U frame 15 is positioning the pile body, since the driving wheel 57 contacts the pile body earlier than the positioning U frame 15, the driving wheel 57 contacts the pile body first, so that the position of the pile body can be positioned in advance, thereby improving the positioning effect of the reinforcement structure on the pile body; through the continued movement of the positioning U frame 15, the pressing base 54 on the positioning U frame 15 moves within the upper limit of the pressing square column 55, so that the pressing spring 60 is in a buffering state, thereby strengthening the contact strength of the driving wheel 57 with the pile body, and the friction force of the driving wheel 57 with the pile body is also strengthened under the action of the friction pad 58, so that In order to make the pile body move down smoothly, it is used to guide the movement of the pile body and improve the smoothness of the pile body when moving down. At this time, by starting the rotary motor 59, its output end drives the driving wheel 57 to rotate, so that it can provide power for the downward movement of the pile body, and can be used to provide additional power for the downward movement of the pile body. At the same time, the rotation of the driving wheel 57 can be limited to prevent the pile body from falling into the soil due to gravity and other factors when it is not needed to be driven into the soil. The driving depth of the pile body can be accurately controlled, which further improves the reinforcement effect of the pile foundation, thereby reducing the limitations of the pile foundation during reinforcement.

[0023] The present invention also provides a pile foundation reinforcement method, comprising the following steps: S1. Install the pressure base on the cap, put the pile body to be reinforced into the pile hole, and clamp the pile body by operating the combined positioning unit; S2, using a pressure reinforcement device to drive the pile into the ground; S3, under the action of the position detection and quantitative mechanism, is used to monitor the movement state and position of the pile body.

[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pile foundation reinforcement structure, comprising a pile foundation; the pile foundation is composed of a pile body and a cap; a through pile hole is provided at the top of the cap, and a pile body is provided in the pile hole; the characteristics are: The cap is provided with a pressure reinforcement device, which is used to press the pile body underground; the pressure reinforcement device comprises two pressure bases (1) installed on the top of the cap, and the two pressure bases (1) are symmetrically arranged with the pile pressing hole as the symmetry axis; the opposite back surfaces of the two pressure bases (1) are connected to a rectangular frame (2), and the bottom of the rectangular frame (2) is in contact with the top of the cap; a displacement base (3) is installed on one of the opposite back surfaces of the rectangular frame (2), and the opposite surfaces of the two displacement bases (3) are provided with displacement screws (4 ), a displacement screw rod (4) is threadedly connected with a displacement hexagonal block (5), and a combined positioning unit is arranged on the displacement hexagonal block (5), and the combined positioning unit is used to limit the movement of the pile body; a T-shaped base (6) is installed on the outer wall of the rectangular frame (2), and the T-shaped base (6) is not arranged on the same side as the displacement base (3); an L-shaped base (7) is installed on the top of the T-shaped base (6), and a driving shaft (8) is arranged on the L-shaped base (7), and a position detection and quantitative mechanism is arranged on the driving shaft (8), and the position detection and quantitative mechanism is used to monitor the movement state of the pile body.

2. A pile foundation reinforcement structure according to claim 1, characterized in that: The combined positioning unit comprises two symmetrical guide cylinders (9), which are fixedly mounted on a side of the displacement hexagonal block (5) away from the pile body; the guide cylinders (9) penetrate a side of the displacement base (3) close to the pile body; the displacement base (3) and the guide cylinders (9) are slidably matched; active pulleys (10) are mounted on opposite back surfaces of the two displacement bases (3); a conversion base (11) is mounted on the top of the displacement hexagonal block (5), and a rotation angle adjustment component is arranged on the conversion base (11); the rotation angle adjustment component comprises a rotating shaft (12) mounted on the conversion base (11), a positioning horizontal plate (13) is mounted on one end of the rotating shaft (12) close to the pile body, and two symmetrical positioning sliding columns (14) are penetrated and connected to the side of the positioning horizontal plate (13), and the positioning sliding columns (14) and the positioning horizontal plate (13) are slidably matched; and a positioning U frame (15) is commonly connected to one end of the two positioning sliding columns (14) close to the pile body.

3. A pile foundation reinforcement structure according to claim 2, characterized in that: A lubricating pad (16) is provided on the inner side of the positioning U frame (15), and the pile body is located on the moving path of the lubricating pad (16); the inner side of the positioning U frame (15) is in contact with the pile body; a positioning spring (17) is sleeved on the positioning sliding column (14), one end of the positioning spring (17) is fixedly connected to the positioning U frame (15), and the other end is fixedly connected to the positioning horizontal plate (13); a positioning square column (18) is provided on the side of the positioning horizontal plate (13) close to the pile body, and a main contact piece (19) is installed on the positioning square column (18); a positioning square tube (20) is provided on the side of the positioning U frame (15) away from the pile body, and an auxiliary contact piece (21) is provided on the inner bottom surface of the positioning square tube (20), and the auxiliary contact piece (21) and the main contact piece (19) are electrically connected.

4. A pile foundation reinforcement structure according to claim 1, characterized in that: A torque slide column (22) is also installed on the top of the pressure base (1), and a torque slider (23) is slidably installed on the torque slide column (22), and the opposite surfaces of the two torque sliders (23) are commonly connected to a hydraulic jack (24); the side of the hydraulic jack (24) close to the base is an output end, and a pressure block (25) is installed on the output end of the hydraulic jack (24), and a rubber pad (26) is provided on the side of the pressure block (25) close to the base; the top of the pile body is located on the moving path of the rubber pad (26).

5. A pile foundation reinforcement structure according to claim 3, characterized in that: A driving motor (27) is installed on the side of the T-shaped base (6) away from the rectangular frame (2); a driving bevel gear (28) is installed on the output end of the driving motor (27); the driving bevel gear (28) is meshingly connected with a rotating bevel gear (29) located on the side thereof; a reciprocating shaft (30) is installed on the rotating bevel gear (29); both ends of the reciprocating shaft (30) are installed with reciprocating pulleys (31); a transmission belt (32) is connected to the reciprocating pulley (31); the transmission belt (32) is slidably matched with the reciprocating pulley (31) and the active pulley (10); a reciprocating base (33) is installed on the reciprocating shaft (30); the reciprocating base (33) is fixedly installed on the rectangular frame (2).

6. A pile foundation reinforcement structure according to claim 2, characterized in that: The rotation angle adjustment assembly also includes a locking gear (34) installed on the end of the rotating shaft (12) away from the pile body, and a rotating ring is installed on the side of the locking gear (34); a guide square column (35) is installed on the top of the conversion base plate (11), and a guide slider (36) is slidably connected to the guide square column (35), and a locking horizontal block (37) is installed on the guide slider (36). Two symmetrical locking sliding columns (38) are installed on the top of the locking horizontal block (37), and the two locking sliding columns (38) are connected to a locking tooth block (39) at one end close to the locking gear (34). The locking gear (34) is located at The locking tooth block (39) is on the moving path of the locking tooth block (39) and the two are meshed; the locking slide column (38) and the locking cross block (37) are slidably matched; the guide square column (35) is provided with a guide spring (40), one end of the guide spring (40) is fixedly connected to the conversion base plate (11), and the other end is fixedly connected to the guide slide block (36); the locking slide column (38) is provided with a locking spring (41), one end of the locking spring (41) is fixedly connected to the locking cross block (37), and the other end is connected to the locking limit plate, and the locking limit plate is fixedly connected to the end of the locking slide column (38) away from the locking tooth block (39).

7. A pile foundation reinforcement structure according to claim 1, characterized in that: The position detection and quantitative mechanism comprises an auxiliary bevel gear (42) mounted on the driving shaft (8), the auxiliary bevel gear (42) being meshedly connected with the driving bevel gear (28); a double-end cam (43) is mounted on one end of the driving shaft (8) away from the auxiliary bevel gear (42); limited motion bases (44) are mounted on both sides of the L-shaped base (7), the opposite surfaces of the two limited motion bases (44) are penetrated and connected with limited motion cylinders (45), and the limited motion cylinders (45) are slidably matched with the limited motion bases (44); limited motion U-seats (46) are mounted on the opposite ends of the two limited motion cylinders (45), and a triggering round wheel (47) is mounted in the limited motion U-seat (46), and the side walls of the two triggering round wheels (47) are in contact with the side walls of the double-end cam (43).

8. A pile foundation reinforcement structure according to claim 7, characterized in that: A limiting spring (48) is sleeved on the limiting cylinder (45), one end of the limiting spring (48) is fixedly connected to the limiting U seat (46), and the other end is fixedly connected to the limiting base (44); one end of a bent round rod (49) is mounted on the opposite ends of the two limiting cylinders (45), and a movable square plate (50) is mounted on the other end of the bent round rod (49), and the two movable square plates (50) are symmetrically arranged with the pile body as the symmetry axis; the movable square plate (50) and the positioning U frame (15) are on the same side; a plurality of sensing patches arranged horizontally and vertically are mounted on the opposite surfaces of the two movable square plates (50); guide square plates (51) are mounted on both sides of the movable square plates (50), a guide cylinder (52) is fixedly mounted on the guide square plate (51), a guide base (53) is slidably connected to the guide cylinder (52), and the guide base (53) is fixedly connected to the pressure base (1).

9. A pile foundation reinforcement structure according to claim 2, characterized in that: The positioning U frame (15) is also provided with a driving force boosting module; the driving force boosting module comprises a pressure base (54) provided on the top and bottom of the positioning U frame (15); a pressure square column (55) is connected through the side of the pressure base (54) close to the pile body; a pressure square seat (56) is installed at one end of the pressure square column (55) close to the pile body, and a pressure limit plate is installed at the end away from the pile body; a plurality of driving wheels (57) are provided in the pressure square seat (56); the driving wheels (57) are provided with a plurality of driving wheels (57) and the driving wheels (57) are provided with a plurality of driving wheels (57) and a plurality of ... A friction pad (58) is provided on the outer wall, and the pile body is located on the moving path of the friction pad (58); the driving wheel (57) contacts the pile body earlier than the positioning U frame (15); a rotating motor (59) is installed on the side of the pressing square seat (56), and the output end of the rotating motor (59) is connected to the driving wheel (57); a pressing spring (60) is sleeved on the pressing square column (55), one end of the pressing spring (60) is connected to the pressing limit plate, and the other end is connected to the pressing base (54).

10. A pile foundation reinforcement method, using the pile foundation reinforcement structure according to claim 1, characterized in that: Includes steps: S1. Install the pressure base on the cap, put the pile body to be reinforced into the pile hole, and clamp the pile body by operating the combined positioning unit; S2, using a pressure reinforcement device to drive the pile into the ground; S3, under the action of the position detection and quantitative mechanism, is used to monitor the movement state and position of the pile body.

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