Pulse cooperative self-adaptive regulation type road-bridge geological efficient piling device

Abstract

The present application relates to the technical field of pile drivers, and discloses a pulse cooperative self-adaptive regulation and control type road and bridge geological efficient pile driving device, which comprises a vertical guide rail, a mounting portion is installed on the side wall of the vertical guide rail and used for mounting a ground pulse tool, a pulse portion is installed on the mounting portion and used for automatically and intermittently emitting pulse current to break rock stratum, a pile driving portion is installed on the vertical guide rail and used for road surface pile driving and hole forming, and a buffer portion is installed on the pile driving portion and used for buffering the pile driving vibration force received by the pulse portion. The pulse driving frequency is matched with the intermittent emission of pulse current to improve the pile driving efficiency. When facing hard stratum such as rock stratum, the pulse current automatically and intermittently emitted by the pulse portion can generate electromagnetic force and shock wave in the rock, so that the rock produces fissures, the pile driver is effectively assisted to reduce the pile driving difficulty, and the pile driving efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of pile driver technology, specifically to a pulse-coordinated adaptive control type high-efficiency pile driving device for road and bridge geology. Background Technology

[0002] In road and bridge construction, pile drivers are a crucial piece of machinery. With the continuous advancement of transportation infrastructure construction, the requirements for the construction quality and efficiency of foundation piles are becoming increasingly stringent for projects such as highways, railway bridges, and urban road viaducts.

[0003] According to Chinese Patent Publication No. CN119244154A, this patent provides a pulse-coordinated adaptive control type high-efficiency piling device for road and bridge geology and its usage method. It includes a mobile vehicle and a piling frame installed at the end of the mobile vehicle. A high-pressure rotary power head is installed on the piling frame, and a drill rod assembly is installed on the high-pressure rotary power head. The drill rod assembly includes a first drill rod component, a second drill rod component, and a third drill rod component. The first drill rod component includes a first outer sleeve fitted together from the outside in. This effectively combines the advantages of rotary drilling rigs and drilling equipment specifically designed for hard rock formations. It modifies existing rotary drilling rigs, allowing for convenient switching between drilling operation modes using a single device. Appropriate drilling processes can be adopted according to different geological structures, effectively solving the technical problem of using the same drilling equipment to complete two drilling operations in two different geological structures. This not only reduces equipment purchase, maintenance, and transportation costs but also avoids delays caused by frequent changes in drilling equipment, improving construction efficiency and significantly reducing construction costs.

[0004] Hard strata, such as rock formations, have high hardness and strength, requiring greater impact force from the pile driver to drive the pile into the ground. This significantly slows down the pile driving speed and drastically reduces the pile's penetration depth per unit time, greatly impacting construction progress and increasing construction time costs. Therefore, a pulse-coordinated adaptive control type high-efficiency pile driving device for road and bridge geology is proposed to address the aforementioned problems. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a pulse-coordinated adaptive control type high-efficiency piling device for road and bridge geology, which solves the problems of low efficiency in driving piles into hard strata and increased construction time and costs.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: a pulse-coordinated adaptive control type high-efficiency piling device for road and bridge geology, comprising a vertical guide rail, an installation part mounted on the side wall of the vertical guide rail for mounting a ground-pulse tool, a pulse part mounted on the installation part for automatically and intermittently emitting pulse current to break rock strata, a piling part mounted on the vertical guide rail for drilling holes for piling on the road surface, and a buffer part mounted on the piling part for buffering the piling vibration force received by the pulse part.

[0009] Preferably, the mounting part includes two mounting feet, both of which are mounted on one side of the vertical guide rail. A U-shaped frame is fixedly connected to the ends of the two mounting feet. Two insertion holes are opened on each of the two ear ends of the U-shaped frame. A support rod is fixedly connected to the top surface of one ear end of the U-shaped frame. There are a total of six support rods. Every three support rods are arranged around the outside of one insertion hole. A limit cover is fixedly connected to the top of every three adjacent support rods. A wire guide is fixedly connected to the side wall of the U-shaped frame. A frame is fixedly connected between the two mounting feet.

[0010] Preferably, there are two mounting parts, with the two mounting feet of the other mounting part mounted on the other side of the vertical guide rail, and the two mounting parts are arranged symmetrically between each other.

[0011] Preferably, the pulse unit includes two insulating pillars, which are respectively inserted into the inner walls of two aligned sockets between the U-shaped bracket ears of the mounting part on one side. The bottom of each of the two insulating pillars is provided with a rod groove, and an electrode is fixedly connected to the inner wall of each rod groove. A shock-absorbing pad is fixedly connected to the top of each of the two insulating pillars. A high-voltage generator is mounted on the frame, and a high-voltage insulated cable is connected between the high-voltage generator and the two insulating pillars. The two high-voltage insulated cables pass through the cable guide and are electrically connected to the two electrodes respectively.

[0012] Preferably, there are two pulse units, with one pulse unit mounted on another mounting unit, and the two pulse units are arranged symmetrically between each other.

[0013] Preferably, the piling unit includes a pile frame, which is mounted on the moving end of a vertical guide rail. A hammer head is slidably connected to the inner wall of the pile frame. A lifting cylinder is installed inside the pile frame, and the telescopic end of the lifting cylinder is fixedly connected to the hammer head. A pile head is inserted into the bottom of the pile frame, and the end of the pile head is in contact with the hammer head.

[0014] Preferably, the buffer section includes a T-shaped plate, which is fixedly connected to one side of the hammer head. Two buffer columns slide through the T-shaped plate, and a limiting piece is fixedly connected to the top of each of the two buffer columns. A tension spring is elastically connected between each of the two limiting pieces and the T-shaped plate. The two tension springs are respectively movably sleeved on the two buffer columns. A positioning plate is fixedly connected to one side of the outer wall of the pile frame, and a distance sensor is installed on the positioning plate.

[0015] Preferably, there are two buffer sections, with the T-shaped plate of the other buffer section fixedly connected to the other side of the hammer head, and the two buffer sections are arranged symmetrically to each other.

[0016] Preferably, the two buffer posts in each buffer section are aligned with the two insulating posts on the same side, the top of each insulating post is located between the three adjacent support rods, the bottom of each buffer post is an arc-shaped structure, and each buffer post passes through the corresponding limiting cover and abuts against the aligned shock-absorbing pad.

[0017] Preferably, each of the two high-voltage generators is electrically connected to a microcontroller, and the distance sensor in each buffer section is electrically connected to the microcontroller located on the same side. Each distance sensor is aligned with its adjacent T-plate.

[0018] (III) Beneficial Effects

[0019] Compared with the prior art, the present invention provides a pulse-coordinated adaptive control type high-efficiency piling device for road and bridge geology, which has the following beneficial effects:

[0020] 1. This pulse-coordinated adaptive control type road and bridge geological high-efficiency piling device uses piling frequency in conjunction with intermittent pulse current to improve piling efficiency. When facing hard strata such as rock strata, the pulse current automatically and intermittently emitted by the pulse unit can generate electromagnetic force and shock waves inside the rock, causing cracks in the rock, effectively assisting the piling machine to reduce the difficulty of piling and improve piling efficiency.

[0021] 2. This pulse-coordinated adaptive control type high-efficiency piling device for road and bridge geology uses a high-voltage generator to adjust the current magnitude for intermittent discharge when applied to soil pavement. This causes soil particles to be periodically stressed under the action of an electric field, changing the charge distribution and interparticle forces. After multiple actions, the soil structure becomes loose and the porosity increases. Compared with continuous discharge, this is more conducive to drilling operations and provides better conditions for subsequent pile driving.

[0022] 3. This pulse-coordinated adaptive control type high-efficiency piling device for road and bridge geology adopts an intermittent pulse current emission mode to protect the equipment and improve stability. Compared with continuous current emission, it allows the equipment time to dissipate heat and rest, which can reduce damage caused by overheating and excessive work, and extend the service life of the equipment. For example, it protects the key electronic components in the pulse current emission device and the mechanical parts related to piling.

[0023] 4. This pulse-coordinated adaptive control type high-efficiency piling device for road and bridge geology adopts a buffer design to effectively improve the stability and safety of piling operations. During the piling process, the buffer column can enter the limit cover first, abut against the shock-absorbing pad, and use the tension spring to buffer the impact vibration generated by piling, reducing the damage of vibration to the components, while ensuring the stability of the high-voltage pulse and preventing the problem of pulse current leakage caused by the electrode bouncing due to vibration.

[0024] 5. This pulse-coordinated adaptive control type high-efficiency piling device for road and bridge geology optimizes the construction environment and saves energy. The intermittent emission of pulse current can reduce electromagnetic interference at the construction site, making the electromagnetic field distributed discretely in time, reducing continuous interference to other electronic equipment at the construction site, and ensuring smooth communication and accurate monitoring data during the construction process.

[0025] 6. This pulse-coordinated adaptive control type high-efficiency piling device for road and bridge geology can flexibly adjust the pulse current emission frequency and intensity according to the actual fracture condition of the rock strata or soil, avoiding unnecessary energy consumption and achieving energy saving while ensuring construction effect. It is especially suitable for construction scenarios where electricity costs need to be controlled. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of a pulse-coordinated adaptive control type high-efficiency piling device for road and bridge geology proposed in this invention;

[0027] Figure 2 This is a connection diagram of the vertical guide rail and installation part of a pulse-coordinated adaptive control type high-efficiency piling device for road and bridge geology proposed in this invention.

[0028] Figure 3 This is a connection diagram of the installation part and the pulse part of a pulse-coordinated adaptive control type high-efficiency piling device for road and bridge geology proposed in this invention;

[0029] Figure 4 This is a schematic diagram of the installation section of a pulse-coordinated adaptive control type high-efficiency piling device for road and bridge geology proposed in this invention;

[0030] Figure 5 This is a connection diagram of the piling section and the buffer section of a pulse-coordinated adaptive control type high-efficiency piling device for road and bridge geology proposed in this invention.

[0031] Figure 6 This is a schematic diagram of the distance sensor of a pulse-coordinated adaptive control type high-efficiency piling device for road and bridge geology proposed in this invention;

[0032] Figure 7 This is a schematic diagram of the buffer section and pulse section of a pulse-coordinated adaptive control type high-efficiency piling device for road and bridge geology proposed in this invention.

[0033] In the diagram: 1. Vertical guide rail; 2. Mounting section; 21. Mounting foot; 22. U-shaped frame; 23. Support rod; 24. Limit cover; 25. Cable guide; 26. Frame; 3. Pulse section; 31. Insulating column; 32. Electrode; 33. Vibration damping pad; 34. High voltage generator; 35. High voltage insulated cable; 4. Piling section; 41. Piling frame; 42. Hammer head; 43. Lifting cylinder; 44. Piling head; 5. Buffer section; 51. T-shaped plate; 52. Buffer column; 53. Limit plate; 54. Tension spring; 55. Positioning plate; 56. Distance sensor. Detailed Implementation

[0034] 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 of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see Figure 1-7 This invention provides a technical solution: a pulse-coordinated adaptive control type high-efficiency piling device for road and bridge geology, including a vertical guide rail 1. The vertical guide rail 1 is one of the components of the existing piling machine body, which will not be described in detail here. The mounting part 2 is installed on the side wall of the vertical guide rail 1 for installing a ground pulse tool. The pulse part 3 is installed on the mounting part 2 for automatically and intermittently transmitting pulse current to break rock strata. The piling part 4 is installed on the vertical guide rail 1 for drilling holes for piling on the road surface. The buffer part 5 is installed on the piling part 4 for buffering the piling vibration force received by the pulse part 3.

[0036] In this invention, to facilitate easier adaptation to the pulse tools related to this case, the mounting part 2 includes two mounting feet 21, both of which are mounted on one side of the vertical guide rail 1. A U-shaped frame 22 is fixedly connected to the ends of the two mounting feet 21. Two insertion holes are opened on the two ear ends of the U-shaped frame 22. A support rod 23 is fixedly connected to the top surface of one ear end of the U-shaped frame 22. There are a total of six support rods 23. Every three support rods 23 are arranged around the outside of one insertion hole. A limit cover 24 is fixedly connected to the top of every three adjacent support rods 23. A cable threading frame 25 is fixedly connected to the side wall of the U-shaped frame 22. The cable threading frame 25 is used to thread cables to avoid tangling. A frame 26 is fixedly connected between the two mounting feet 21. There are two mounting parts 2. The two mounting feet 21 of the other mounting part 2 are mounted on the other side of the vertical guide rail 1. The two mounting parts 2 are arranged symmetrically with each other.

[0037] In this embodiment, in order to process the road surface by calling the pulse current in real time using the piling frequency, the pulse unit 3 includes two insulating columns 31. The two insulating columns 31 are respectively inserted into the inner walls of two aligning holes between the ears of the U-shaped frame 22 on one side of the mounting part 2. The bottom of each insulating column 31 is provided with a rod groove, and an electrode 32 is fixedly connected to the inner wall of each rod groove. The top of each insulating column 31 is fixedly connected with a shock-absorbing pad 33. A high-voltage generator 34 is installed on the frame 26, which adopts a TP3020 high-voltage pulse power supply for connecting to the mains power during road and bridge construction. A high-voltage insulated cable 35 is connected between the high-voltage generator 34 and the two insulating columns 31. The two high-voltage insulated cables 35 pass through the cable tray 25 and are electrically connected to the two electrodes 32 respectively. There are two pulse units 3, with the other pulse unit 3 installed on another mounting part 2. The two pulse units 3 are arranged symmetrically between each other.

[0038] It is worth noting that the pile driving part 4 in this case includes a pile frame 41, which is installed on the moving end of the vertical guide rail 1. A hammer head 42 is slidably connected to the inner wall of the pile frame 41. A lifting cylinder 43 is installed inside the pile frame 41. The telescopic end of the lifting cylinder 43 is fixedly connected to the hammer head 42. A pile head 44 is inserted into the bottom of the pile frame 41, and the end of the pile head 44 is in contact with the hammer head 42.

[0039] To further improve the stability and safety of pile driving, the buffer section 5 in this case includes a T-shaped plate 51, which is fixedly connected to one side of the hammer head 42. Two buffer columns 52 slide through the T-shaped plate 51, and limit plates 53 are fixedly connected to the top of each buffer column 52. Tension springs 54 are elastically connected between each limit plate 53 and the T-shaped plate 51. The two tension springs 54 are respectively movably sleeved on the two buffer columns 52. A positioning plate 55 is fixedly connected to one side of the outer wall of the pile frame 41. A distance sensor 56 is installed on the positioning plate 55, which adopts an LD80X laser infrared ranging module. There are two buffer sections 5. The T-shaped plate 51 of the other buffer section 5 is fixedly connected to the other side of the hammer head 42. The two buffer sections 5 are symmetrically arranged.

[0040] It is worth noting that the two buffer columns 52 in each buffer section 5 are respectively aligned with the two insulating columns 31 on the same side. The top of each insulating column 31 is located between the three support rods 23 adjacent to it. The bottom of each buffer column 52 is an arc-shaped structure. Each buffer column 52 passes through the corresponding limiting cover 24 and abuts against the aligned shock-absorbing pad 33. The support rods 23 and the limiting cover 24 can further ensure the stability of the lifting of the pile frame 41 and improve the safety of operation. Both high-voltage generators 34 are electrically connected to microcontrollers. The distance sensors 56 in each buffer section 5 are electrically connected to the microcontrollers located on the same side. Each distance sensor 56 is respectively aligned with the T-shaped plate 51 adjacent to it.

[0041] Working principle: The moving end of the vertical guide rail 1 lifts the pile frame 41 to a high position. The insulating columns 31 on the U-shaped frames 22 on both sides are perpendicular to the road surface, causing the electrode 32 to contact the road surface. The lifting cylinder 43 drives the hammer head 42 to move up and down repeatedly, causing the hammer head 42 to repeatedly strike the pile head 44, thereby drilling the road surface. Each time the hammer head 42 moves up and down, the distance between the T-shaped plate 51 and the positioning plate 55 changes, and the distance sensor 56 measures the distance in real time. When the hammer head 42 descends to strike the pile head 44, the distance sensor 56 detects that the distance of the T-shaped plate 51 has decreased to the threshold and sends a feedback signal. Then, the microcontroller activates the high-voltage generator 34. The high-voltage generator 34 transmits current to the electrode 32 through the high-voltage insulated cable 35, and sends a pulse current to the road surface at the drilling position through the electrode 32. This generates electromagnetic force and shock waves inside the rock, which helps to break the rock and assists the pile driver to improve the pile driving efficiency. When facing hard strata, it causes the rock to crack, reducing the difficulty of pile driving.

[0042] When the hammer 42 rises, the distance sensor 56 detects that the T-plate 51 has moved away from the detection threshold and stops the high-voltage generator 34 from working through the microcontroller. Therefore, during the reciprocating pile driving process, the pulse current can be automatically emitted intermittently in accordance with the pile driving frequency. Compared with continuous current emission, the equipment can have time to dissipate heat and rest, which can induce a fatigue effect in the rock strata and make it easier to further break the rock along these extended cracks, thereby improving the rock breaking efficiency. Intermittent pulse current emission can reduce electromagnetic interference at the construction site and flexibly adjust the emission frequency and intensity according to the actual rock breaking situation.

[0043] In the buffer section 5, the buffer column 52 moves up and down with the hammer head 42. When descending, the bottom end of the buffer column 52 is longer than the pile frame 41, so it will enter the limiting cover 24 first to avoid displacement. This allows the buffer column 52 to abut against the shock-absorbing pad 33, and the tension of the tension spring 54 tightens the limiting plate 53, so that the insulating column 31 is stably pressed against the ground. At the same time, the impact vibration generated during pile driving can be transmitted through the shock-absorbing pad 33 to the buffer column 52 and then to the tension spring 54 for buffering, thereby reducing the damage to the components caused by vibration, further ensuring the stability of the high voltage pulse, and avoiding the hidden danger of pulse current leakage caused by the electrode 32 bouncing due to vibration. By coordinating with the pile driving frequency, the safety of the pulse section 3 is further improved.

[0044] Similarly, in dealing with soil pavement, the current can be adjusted using the high-voltage generator 34 to intermittently discharge soil particles, causing them to be periodically subjected to attractive and repulsive forces under the influence of the electric field. Each discharge alters the charge distribution on the soil particle surface, changing the forces between particles. Repeated intermittent discharges loosen the soil structure, increasing porosity between particles. This makes the soil more easily loosened compared to continuous discharge, resulting in more efficient drilling operations and providing a safer and more efficient guarantee for subsequent pile driving.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A pulse cooperative self-adaptive regulation type road-bridge geological efficient piling device, characterized in that, Include: Vertical guide rail (1); Mounting portion (2) mounted on the side wall of the vertical guide rail (1) for mounting the ground pulse tool; The mounting portion (2) comprises two mounting feet (21), both of which are mounted on one side of the vertical guide rail (1), and the end of both of which is fixedly connected with a U-shaped frame (22), both ears of the U-shaped frame (22) are provided with two insertion holes, and the side ear top surface of the U-shaped frame (22) is fixedly connected with a support rod (23), the number of the support rod (23) is six, and every three support rods (23) are respectively arranged outside one insertion hole, and the top end of every three adjacent support rods (23) is fixedly connected with a limiting cover (24), the side wall of the U-shaped frame (22) is fixedly connected with a threading rack (25), and the two mounting feet (21) are fixedly connected with a rack (26); The pulse part (3) is installed on the mounting portion (2) for automatic intermittent emission of pulse current to break the rock formation; The pulse part (3) comprises two insulating columns (31), which are respectively inserted into the two insertion holes on the U-shaped frame (22) of the mounting portion (2), and the bottom of each insulating column (31) is provided with a rod groove, and the inner wall of each rod groove is fixedly connected with an electrode (32), and the top of each insulating column (31) is fixedly connected with a shock pad (33), and the rack (26) is provided with a high-voltage generator (34), and the high-voltage generator (34) and the two insulating columns (31) are connected with high-voltage insulating cables (35), and the two high-voltage insulating cables (35) pass through the threading rack (25) and are respectively connected with the two electrodes (32); The pile driving part (4) is installed on the vertical guide rail (1) for road surface pile driving and hole forming, the pile driving part (4) comprises a pile frame (41), the pile frame (41) is installed on the mover end of the vertical guide rail (1), the inner wall of the pile frame (41) is slidably connected with a hammer head (42), the pile frame (41) is provided with a lifting oil cylinder (43), the telescopic end of the lifting oil cylinder (43) is fixedly connected with the hammer head (42), and the bottom of the pile frame (41) is inserted with a pile head (44), and the end of the pile head (44) is in contact with the hammer head (42); The buffer part (5) is installed on the pile driving part (4) for buffering the pile driving vibration force received by the pulse part (3); The buffer part (5) comprises a T-shaped plate (51), the T-shaped plate (51) is fixedly connected on one side of the hammer head (42), two buffer columns (52) are slidably penetrated through the T-shaped plate (51), the top end of each buffer column (52) is fixedly connected with a limiting sheet (53), and the T-shaped plate (51) is elastically connected with a tension spring (54) between the two limiting sheets (53), the two tension springs (54) are respectively movably sleeved on the two buffer columns (52), one side of the outer wall of the pile frame (41) is fixedly connected with a positioning plate (55), and the positioning plate (55) is provided with a distance sensor (56). Microcontrollers are electrically connected in two high-voltage generators (34), distance sensors (56) in each buffer part (5) are respectively electrically connected between microcontrollers on the same side, and each distance sensor (56) is respectively arranged in alignment with a T-shaped plate (51) adjacent thereto.

2. The pulse synergic self-adaptive regulation type road-bridge geologically efficient piling device according to claim 1, characterized in that: The number of the mounting parts (2) is two, two mounting legs (21) of another mounting part (2) are mounted on the other side of the vertical guide rail (1), and the two mounting parts (2) are symmetrically arranged.

3. The pulse synergic self-adapting control type road-bridge geologically efficient piling device according to claim 2, characterized in that: The number of the pulse parts (3) is two, another pulse part (3) is mounted on another mounting part (2), and the two pulse parts (3) are symmetrically arranged.

4. The pulse synergic self-adapting control type road-bridge geologically efficient piling device according to claim 3, characterized in that: The number of the buffer parts (5) is two, a T-shaped plate (51) of another buffer part (5) is fixedly connected to the other side of the hammer head (42), and the two buffer parts (5) are symmetrically arranged.

5. The pulse synergic self-adapting control type road-bridge geologically efficient piling device according to claim 4, characterized in that: Two buffer columns (52) in each buffer part (5) are respectively arranged in alignment with two insulating columns (31) on the same side, the top end of each insulating column (31) is located between three supporting rods (23) adjacent thereto, the bottom end of each buffer column (52) is an arc surface structure, each buffer column (52) passes through a corresponding limiting cover (24) and abuts against a damping pad (33) in alignment.

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