Highway subgrade gravel pile vibration device and method

Abstract

The invention belongs to the technical field of roadbed engineering, and particularly discloses a highway roadbed gravel pile vibration device and method. Comprising a gravel pile vibration system, a gravel flowing state detection system and a control system, the gravel pile vibration system comprises a gravel inlet pile, a guide opening, a gravel frame, a connector and a control head, the gravel inlet pile comprises a supporting sleeve, an inlet hopper, a control rod, guide strips, a vibration pile, a main frame and an outlet hopper, the control rod is connected with the main frame, and the guide strips are evenly distributed on the inner surface of the inlet hopper. The vibration pile is located in the center of the main frame, the supporting sleeve is arranged on the outer surface of the main frame in a sleeving mode, the inlet hopper is connected with the main frame and the outlet hopper, the vibration pile is connected with the connector through the control head, and the gravel flowing state detection system is used for detecting the gravel flowing state in real time. The control system is used for conducting gravel flow optimization control over gravel entering the gravel pile vibration system. Through real-time monitoring and intelligent control, broken stone flowing is optimized, and the production efficiency and safety are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of roadbed engineering, and more specifically, relates to a highway roadbed gravel pile vibration device and method. Background Art

[0002] Gravel piles for highway roadbed are a commonly used foundation reinforcement method in highway construction. By setting up gravel piles in the roadbed, the bearing capacity and stability of the roadbed can be improved. Gravel piles are made of materials such as crushed stone or pebbles, and are pressed into the foundation by equipment to form columns with certain strength and rigidity. These columns can effectively disperse and transfer the upper load, reduce the settlement and deformation of the foundation, thereby ensuring the stability and safety of the highway.

[0003] In the prior art, when constructing the roadbed for roads with relatively soft and moist soil, after the hole of the gravel pile is drilled out by bored piles, the gravel is introduced into the hole by vibration piles. If the soil inside is too loose and moist, repeated friction and impact will be formed during the introduction of the gravel, which may easily cause the soil inside the hole to collapse and deform, affecting the space for the subsequent introduction of gravel. In addition, as a common filling material, the flow and filling uniformity of gravel during the introduction of gravel have an important impact on the quality of the project and the efficiency of construction. Traditional gravel flow control methods mainly rely on manual operation and simple mechanical adjustment. These methods have the following problems: Low efficiency: Manual operation cannot accurately control the flow of gravel in real time, resulting in low construction efficiency and increased project costs. Poor uniformity: The lack of effective control means makes it difficult for the flow of gravel to be evenly distributed, which may easily cause local accumulation or voids, affecting the stability and bearing capacity of the foundation. Environmental impact: Uneven gravel flow may cause unnecessary damage to the surrounding environment, such as soil erosion and damage to the ecological balance. Reliance on experience: Traditional methods rely heavily on the experience of operators and lack scientific data support and optimization algorithms, resulting in unstable control effects.

[0004] Based on the above defects and shortcomings, the field urgently needs to propose a highway roadbed gravel pile vibration device and a method for optimizing the gravel flow during the working process in combination with the device, so as to achieve efficient, accurate and adaptive control of the gravel flow through advanced calculation methods and intelligent control strategies. Summary of the invention

[0005] In view of the above defects or improvement needs of the prior art, the present invention provides a highway roadbed gravel pile vibration device and method, which optimizes gravel flow and improves production efficiency and safety through real-time monitoring and intelligent control.

[0006] To achieve the above object, according to one aspect of the present invention, a highway roadbed gravel pile vibration device is proposed, comprising a gravel pile vibration system, a gravel flow state detection system and a control system, wherein:

[0007] The stone pile vibration system comprises a stone pile, a guide port, a stone crushing frame, a connector and a control head. The guide port is connected to the lower end of the stone crushing frame, and the connector is connected to the stone pile through the control head.

[0008] The stone pile includes a support sleeve, an inlet bucket, a control rod, a guide bar, a vibrating pile, a main frame, and an outlet bucket. The control rod is connected to the main frame, the guide bars are evenly distributed on the inner surface of the inlet bucket, the vibrating pile is located at the center of the main frame, the support sleeve is set on the outer surface of the main frame, the inlet bucket is connected to the main frame and the outlet bucket, the vibrating pile is connected to the joint head through the control head, and the guide bar can guide the direction of the crushed stone introduction;

[0009] The gravel flow state detection system is used to detect the gravel flow state in real time;

[0010] The control system is used for optimizing the flow of gravel entering the gravel pile vibration system according to the gravel flow state.

[0011] As a further preferred embodiment, the vibration pile includes a cone head, a rolling ring, and a vibration column. The rolling ring is sleeved on the outer ring of the vibration column, the cone head is located at the bottom of the vibration column, and the vibration column controls the overall vibration through the control head. The rolling ring can rotate along the vibration column when pushed by an external force. The rolling ring is provided with seven rollers evenly distributed in the horizontal and vertical directions on the outer ring of the vibration column, and the cone head is a conical structure.

[0012] As a further preference, the inlet bucket and the outlet bucket are in the form of retractable trumpet, and nine guide strips are provided in a circular and evenly distributed manner. The space between the vibrating pile and the main frame assists in the introduction of gravel. The outlet at the bottom end of the guide port is connected to the upper end of the inlet bucket, and the bottom of the gravel frame can be opened or closed by rotation control. The outlet bucket is narrow at the top and wide at the bottom, which can allow the gravel to be introduced into the aperture more evenly and tightly. The inlet bucket and the outlet bucket can enter in a retracted state before entering the aperture to prevent scraping of the soil inside the aperture.

[0013] As a further preferred embodiment, the rolling ring includes a main ring, a block, and a swivel, the block is fixed to the inner ring surface of the main ring, and the swivel is installed on the outer ring surface of the main ring; the swivels are grouped in six and evenly distributed in a circle, and the block can allow the whole to smoothly rotate along the groove of the vibration column, the main ring rotates horizontally, and the swivel rotates vertically, and when the gravel is introduced into the aperture through vibration, the rolling ring is driven to rotate according to the introduction thrust of the gravel, so that the gravel will not be stuck in a certain position and continuously vibrate and introduce, and the rolling ring can rotate smoothly in two directions at will, so that the gravel can change its position more flexibly.

[0014] As a further preferred embodiment, the main frame includes a node bar, a connecting bar, and a connecting block. The node bar is located at the upper and lower ends of the connecting bar for connection, and the connecting block is connected to the connecting bar. The connecting block pulls the connecting bar through a control rod, and the node bar can swing back and contract by pulling the connecting bar. The node bar controls the inlet bucket and the outlet bucket to move together, and the node bar is located inside the inlet bucket and the outlet bucket to control the dynamics, and the outer surface of the connecting bar is a fixed shell that will not deform.

[0015] As a further preferred embodiment, the support sleeve includes a support body and an elastomer, the elastomer is fitted between the support body and the main frame, the head and tail ends of the support body are fixed to the outer surface of the main frame, the middle section of the support body is an extrudable and deformable support layer, the elastomer itself has a certain elastic force to support the support body, the support body resists and supports the soil on the inner surface of the aperture, the support body is located at the upper end of the outlet bucket, and when the outlet bucket continues to move outward, the support body always resists and compresses the soil inside the aperture at the upper end.

[0016] As a further preferred embodiment, the upper end of the control rod is connected to the control head for control, the upper and lower ends of the support sleeve are inclined arc-shaped, the middle section of the support sleeve can fit and fix the inner surface of the aperture, and the guide bar can follow the changes when the inlet bucket is deformed. When the inlet bucket and the outlet bucket are controlled by the control rod, they can be adjusted and retracted according to the size of the aperture.

[0017] As a further preferred embodiment, the node bars are divided into bendable segments through nodes. Pulling the connecting bars will shorten the spatial distance of the node bars so that the node bars can bend and shrink. The node bars are in an unfolded trumpet shape in a static state. The control rod is controlled to move by the control head to drive the connecting block to move, thereby assisting the node bars to extend and retract. The entrance bucket is a wide-upper-narrow-lower structure that can assist in controlling the uniform input of the amount of gravel.

[0018] As further preferred, the control system is used to optimize the flow of gravel entering the gravel pile vibration system according to the gravel flow state, including:

[0019]

[0020] Where u(t) is the control input, Kp 、 Ki 、 K d is the parameter of the PID controller, D set is the set distribution uniformity, and D is the gravel distribution uniformity.

[0021] According to another aspect of the present invention, there is also provided a method for optimizing a highway roadbed gravel pile vibration device, comprising the following steps:

[0022] Step 1, introducing the crushed stone into the inlet bucket through the crushed stone frame;

[0023] Step 2: Control the extension and retraction of the control rod through the control head, and then control the extension and retraction of the node bar to realize the opening and closing of the inlet bucket and the outlet bucket;

[0024] Step 3, using the guide strip to guide the gravel to flow smoothly into the vibrating pile. In this process, the gravel flow state detection system detects the gravel flow state in real time, and the control system performs gravel flow optimization control on the gravel entering the gravel pile vibration system according to the gravel flow state.

[0025] Step 4: The crushed stone is sent into the main frame through the vibration of the vibrating pile, and then evenly output through the outlet bucket to fill the aperture.

[0026] As a further preferred embodiment, in step 3, the optimizing control of the flow of gravel entering the gravel pile vibration system comprises:

[0027]

[0028] Where u(t) is the control input, K p , K i , K d is the parameter of the PID controller, D set is the set distribution uniformity, and D is the gravel distribution uniformity.

[0029] In general, the above technical solution conceived by the present invention has the following technical advantages compared with the prior art:

[0030] 1. The present invention monitors and automatically optimizes the flow of gravel in real time, and the device can ensure that the gravel is evenly and efficiently filled into the aperture, thereby improving the stability and bearing capacity of the highway subgrade. The automatic adjustment function of the device reduces the need for manual intervention and reduces labor intensity, while improving construction speed and project quality. In addition, the design of the device allows for effective operation under different geological and environmental conditions, such as soft and moist soil, reducing damage to the surrounding environment. By reducing unnecessary friction and impact on the soil inside the aperture, the device helps prevent soil collapse and aperture deformation, thereby improving construction safety. By precisely controlling the flow and output of gravel, the device helps to reduce material waste and improve resource utilization efficiency, while also reducing construction costs.

[0031] 2. The present invention can be used to vibrate and add crushed stones when the stone pile is located in a fixed aperture. The crushed stone frame for receiving the crushed stones is located above the stone pile. The stone pile is firmly pressed by its own gravity and the gravity of the received crushed stones, thereby preventing the stone pile from shifting or shaking during the vibration process.

[0032] 3. Before the stone pile is placed in the aperture to transfer the gravel, the present invention can control the moving control rod through the control head to shrink and pull the connecting block, the connecting bar, and the node bar, so that the inlet bucket and the outlet bucket can be completely shrunk following the node bar, so that the stone pile as a whole can better enter the aperture. After the control rod is returned to its original position, the inlet bucket and the outlet bucket will also be extended.

[0033] 4. The inlet bucket of the present invention is in a state of being wide at the top and narrow at the bottom. When the crushed stones are introduced, the crushed stones can be transported inward more evenly, and the guide strips on the surface of the inlet bucket can guide the conveying direction of the internal crushed stones. The outlet bucket is in a state of being narrow at the top and wide at the bottom. The output crushed stones can be laid out more evenly and more tightly. The crushed stones are transported on the inside of the main frame, avoiding repeated friction and impact on the soil inside the aperture during transportation.

[0034] 5. When the outlet bucket of the present invention continuously outputs and fills the gravel, the support sleeve located at the upper end of the outlet bucket supports the support body through the elastic body, and the support body can contact the soil inside the aperture at the upper end of the outlet bucket to prevent the soil from loosening and collapsing to reduce the filling range of the gravel. The upper and lower sides of the support sleeve are in an inclined state, so that it is smoother when the whole moves along the inner side of the aperture.

[0035] 6. When the crushed stones are continuously transported downward by the vibration of the vibrating column, the accumulated and stuck crushed stones will push the rolling ring to rotate through the squeezing force, so that the stuck crushed stones can be smoothly moved and displaced. When moving to a space with gaps, the crushed stones will be driven to move downward to fill the gap space through the silky rotation of the rotating body, so that the crushed stones can be transported and filled more tightly. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is a schematic structural diagram of a gravel pile vibration system according to an embodiment of the present invention;

[0037] Figure 2 It is a schematic diagram of the structure of a stone pile involved in an embodiment of the present invention;

[0038] Figure 3 is a schematic structural diagram of a vibrating pile involved in an embodiment of the present invention;

[0039] Figure 4 is a schematic structural diagram of a rolling ring involved in an embodiment of the present invention;

[0040] Figure 5 is a schematic cross-sectional structure diagram of a gravel pile vibration system according to an embodiment of the present invention;

[0041] Figure 6 It is a schematic diagram of the cross-sectional structure of the support sleeve and the main frame involved in the embodiment of the present invention;

[0042] Figure 7 The present invention is a working flow chart of a highway roadbed gravel pile vibration device according to an embodiment of the present invention.

[0043] In all the drawings, the same figure marks represent the same technical features, specifically: stone pile 1, guide port 2, crushing frame 3, connector 4, control head 5, support sleeve 11, inlet bucket 12, control rod 13, guide strip 14, vibration pile 15, main frame 16, outlet bucket 17, cone head 51, rolling ring 52, vibration column 53, main ring 21, block 22, swivel 23, node bar 61, connecting bar 62, connector block 63, support body 41, elastic body 42. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0045] like Figures 1 to 6 As shown, the present invention provides a highway roadbed gravel pile vibration device, including a gravel pile vibration system, a gravel flow state detection system and a control system, wherein the gravel pile vibration system includes a stone pile 1, a guide port 2, a gravel frame 3, a connector 4, and a control head 5, the guide port 2 is connected to the lower end of the gravel frame 3, and the connector 4 is connected to the stone pile 1 through the control head 5; the stone pile 1 includes a support sleeve 11, an inlet bucket 12, a control rod 13, a guide bar 14, a vibration pile 15, a main frame 16, and an outlet bucket 17, the control rod 13 is connected to the main frame 16, the guide bars 14 are evenly distributed on the inner surface of the inlet bucket 12, the vibration pile 15 is located at the center of the main frame 16, the support sleeve 11 is sleeved on the outer surface of the main frame 16, the inlet bucket 12 is connected to the main frame 16 and the outlet bucket 17, the vibration pile 15 is connected to the connector 4 through the control head 5, and the guide bar 14 can guide the direction of gravel introduction. The gravel flow state detection system is used for detecting the gravel flow state in real time; the control system is used for optimizing the flow of gravel entering the gravel pile vibration system according to the gravel flow state.

[0046] Based on any of the above embodiments or a combination of multiple embodiments, in this embodiment, the vibration pile 15 includes a cone head 51, a rolling ring 52, and a vibration column 53. The rolling ring 52 is sleeved on the outer ring of the vibration column 53, and the cone head 51 is located at the bottom of the vibration column 53. The vibration column 53 controls the overall vibration through the control head 5. The rolling ring 52 can rotate along the vibration column 53 when pushed by an external force. The rolling ring 52 is provided with seven outer rings of the vibration column 53 that are evenly distributed in horizontal and vertical directions. The cone head 51 is a conical structure.

[0047] Based on any of the above embodiments or a combination of multiple embodiments, in this embodiment, the inlet bucket 12 and the outlet bucket 17 are in the form of retractable trumpets, the guide strips 14 are provided with nine evenly distributed in a circular shape, the space between the vibration pile 15 and the main frame 16 assists in the introduction of gravel, the bottom outlet of the guide port 2 is connected to the upper end of the inlet bucket 12, the bottom of the gravel frame 3 can be opened or closed by rotation control, and the outlet bucket 17 is in the form of a narrow top and a wide bottom, which can allow the gravel to be introduced into the aperture more evenly and tightly, and the inlet bucket 12 and the outlet bucket 17 can enter in a retracted state before entering the aperture to prevent scraping of the soil inside the aperture.

[0048] Based on any of the above embodiments or a combination of multiple embodiments, in this embodiment, the rolling ring 52 includes a main ring 21, a block 22, and a swivel 23. The block 22 is fixed to the inner ring surface of the main ring 21, and the swivel 23 is installed on the outer ring surface of the main ring 21; the swivels 23 are grouped into six and are evenly distributed in a circle. The block 22 can allow the whole to rotate smoothly along the groove of the vibration column 53. The main ring 21 rotates in the horizontal direction, and the swivel 23 rotates in the vertical direction. When the crushed stone is introduced into the aperture through vibration, the rolling ring 52 is driven to rotate according to the introduction thrust of the crushed stone, so that the crushed stone will not be stuck in a certain position and continuously vibrated and introduced. The rolling ring 52 can rotate smoothly in two directions at will, so that the crushed stone can change its position more flexibly.

[0049] Based on any of the above embodiments or a combination of multiple embodiments, in this embodiment, the main frame 16 includes a node bar 61, a connecting bar 62, and a connecting block 63. The node bar 61 is located at the upper and lower ends of the connecting bar 62 for connection. The connecting block 63 is connected to the connecting bar 62. The connecting block 63 pulls the connecting bar 62 through the control rod 13. The node bar 61 can swing back and contract by pulling the connecting bar 62. The node bar 61 controls the inlet bucket 12 and the outlet bucket 17 to move together. The node bar 61 is located inside the inlet bucket 12 and the outlet bucket 17 to control the dynamics. The outer surface of the connecting bar 62 is a fixed shell that will not deform.

[0050] Based on any of the above embodiments or a combination of multiple embodiments, in this embodiment, the support sleeve 11 includes a support body 41 and an elastic body 42. The elastic body 42 is fitted between the support body 41 and the main frame 16. The ends of the support body 41 are fixed to the outer surface of the main frame 16. The middle section of the support body 41 is an extrudable and deformable support layer. The elastic body 42 itself has a certain elastic force to support the support body 41. The support body 41 resists and supports the soil on the inner surface of the aperture. The support body 41 is located at the upper end of the outlet bucket 17. When the outlet bucket 17 continues to move outward, the support body 41 always resists and compresses the soil inside the aperture at the upper end.

[0051] Based on any of the above embodiments or a combination of multiple embodiments, in this embodiment, the upper end of the control rod 13 is connected to the control head 5 for control, the upper and lower ends of the support sleeve 11 are inclined arc-shaped, and the auxiliary whole is located in the aperture so that it can move more conveniently. The middle section of the support sleeve 11 can fit and fix the inner surface of the aperture, and the guide strip 14 can follow the changes when the inlet bucket 12 is movable and deformed. When the inlet bucket 12 and the outlet bucket 17 are controlled by the control rod 13, they can be adjusted and retracted according to the size of the aperture.

[0052] Based on any of the above embodiments or a combination of multiple embodiments, in this embodiment, the node bar 61 is divided into bendable segments through nodes. Pulling the connecting bar 62 will shorten the spatial distance of the node bar 61 so that the node bar 61 can bend and shrink. The node bar 61 is in an unfolded horn shape in a static state. The control rod 13 controls the movement of the control head 5 to drive the connecting block 63 to move, thereby assisting the node bar 61 to extend and retract. The inlet bucket 12 is a wide-upper-narrow-lower structure that can assist in controlling the uniform input of the amount of gravel.

[0053] Based on any of the above embodiments or a combination of multiple embodiments, in this embodiment, the vibration column 53 assists the crushed stone to enter the main frame 16 into the aperture through vibration without causing impact damage to the surface soil inside the aperture. The rotation of the swivel 23 can assist the crushed stone to enter the lower gap space. The crushed stone frame 3 is located at the upper end of the stone pile 1 and exerts gravity on it, so that the stone pile 1 can be more stable during the vibration process. The lateral rotation of the rolling ring 52 can push the accumulated and stuck crushed stone to shift. The vertical rotation of the swivel 23 can allow the upper end crushed stone to move to the lower layer when it rotates to a position with a gap.

[0054] Based on any of the above embodiments or a combination of multiple embodiments, in this embodiment, the main function of the guide bar 14 is to guide the direction of the gravel introduction, rather than directly participating in the telescopic control. The telescopic control is actually achieved through the interaction between the control rod 13 and the node bar 61, the connecting bar 62 and the connecting block 63. The following is a detailed implementation mechanism: The role of the control rod 13: The control rod 13 is a key component for realizing telescopic control. It is connected to the control head 5 and receives control signals to achieve upward or downward movement. The structure of the node bar 61, the connecting bar 62 and the connecting block 63: The node bar 61 is connected to the connecting block 63 through the connecting bar 62. When the control rod 13 moves, it will pull the connecting bar 62 through the connecting block 63, thereby affecting the node bar 61. The telescopic movement of the node bar 61: The node bar 61 is divided into bendable segments through the node. When the connecting bar 62 is pulled, the spatial distance of the node bar 61 is shortened, causing the node bar 61 to bend and shrink. The telescopic movement of the node bar 61 controls the morphological changes of the inlet bucket 12 and the outlet bucket 17. Extension and retraction of the inlet bucket 12 and the outlet bucket 17: The node bar 61 controls the inlet bucket 12 and the outlet bucket 17. When the node bar 61 contracts, the inlet bucket 12 and the outlet bucket 17 will also contract, forming a structure that is wide at the top and narrow at the bottom, which is conducive to the uniform input of crushed stone. When the control rod 13 returns to its original position, the node bar 61 loses its pulling force, and the inlet bucket 12 and the outlet bucket 17 return to their original position, forming a structure that is wide at the top and narrow at the bottom, which is conducive to the output of crushed stone. The role of the guide bar 14: The guide bar 14 is evenly distributed on the inner surface of the inlet bucket 12. Its main function is to guide the direction of the crushed stone during the introduction process, ensuring that the crushed stone can enter between the vibrating pile 15 and the main frame 16 along the predetermined path, so as to be effectively transported to the aperture. In summary, the control rod 13 realizes the extension and retraction control of the inlet bucket 12 and the outlet bucket 17 through the interaction with the node bar 61, the connecting bar 62 and the connecting block 63, and the guide bar 14 is responsible for guiding the flow direction of the crushed stone.

[0055] In addition, the control rod 13 is connected to the main frame 16, and the upper end is connected to the control head 5. The main function of the control rod 13 is to control the node bar 61, the connecting bar 62 and the connecting block 63 by receiving the signal of the control head 5, thereby controlling the extension and contraction of the inlet bucket 12 and the outlet bucket 17. The movement of the control rod 13 will cause the node bar 61 to extend and contract, thereby controlling the opening and closing of the inlet bucket 12 and the outlet bucket 17. The guide bars 14 are evenly distributed on the inner surface of the inlet bucket 12, and their main function is to guide the direction of the crushed stone during the introduction of the crushed stone, ensuring that the crushed stone can enter between the vibrating pile 15 and the main frame 16 along the predetermined path, so as to be effectively transported to the aperture. The guide bar 14 does not directly participate in the extension and contraction control, but acts as a guiding device to help the crushed stone pass through the inlet bucket 12 smoothly. The movement of the control rod 13 is controlled by the control head 5, and the guide bar 14 is fixed on the inner surface of the inlet bucket 12. The cooperation between them is achieved through the extension and contraction action controlled by the control rod 13. When the inlet bucket 12 and the outlet bucket 17 need to be extended or retracted to adapt to different working conditions, the control rod 13 will move accordingly according to the instructions of the control head 5, and the guide bar 14 will maintain its position during this process to ensure the smooth introduction of the gravel. There is no direct physical connection between the control rod 13 and the guide bar 14. They work together through the design and workflow of the entire device. The control rod 13 is responsible for achieving the extension and retraction control, while the guide bar 14 is responsible for guiding the flow direction of the gravel. Together, they ensure the effective operation of the gravel pile vibration device.

[0056] As a preferred embodiment of the present invention, in this embodiment, the control rod 13 should be designed as a retractable rod, the upper end of which is connected to the control head 5, and the lower end is connected to the connecting block 63. The control rod 13 can be retracted and retracted by a hydraulic or pneumatic system to achieve precise control. The guide strip 14 should be designed as a series of flexible strip structures fixed to the inner wall of the inlet bucket 12, and its shape and layout should help guide the gravel to enter the vibrating pile 15 smoothly. The guide strip 14 can be designed in a spiral or wavy shape to promote the flow of gravel. The inlet bucket 12 is designed in a funnel shape with a wide top and a narrow bottom to facilitate the inflow of gravel and reduce the impact on the soil inside the aperture. The lower end of the inlet bucket 12 is connected to the main frame 16, and the upper end is connected to the gravel frame 3. The outlet bucket 17 is designed in a trumpet shape with a narrow top and a wide bottom to facilitate the uniform output and tight filling of gravel. The upper end of the outlet bucket 17 is connected to the main frame 16, and the lower end is connected to the aperture. The node bar 61 is designed as a series of retractable segments, connecting the inlet bucket 12 and the outlet bucket 17. The extension and retraction of the node bar 61 is achieved by the movement of the control rod 13, thereby controlling the opening and closing of the inlet bucket 12 and the outlet bucket 17. The connecting bar 62 is designed as an elastic element connecting the node bar 61 and the connecting block 63, which can be a spring or an elastic rope. When the control rod 13 is extended or retracted, the connecting bar 62 pulls the node bar 61 to extend or retract accordingly. The connecting block 63 is designed as a component fixed to the lower end of the control rod 13, which is used to transmit the movement of the control rod 13 to the connecting bar 62. The connecting block 63 can be designed as a slider or a gear to improve the transmission efficiency. Its working process is as follows:

[0057] Gravel input: Gravel enters the inlet bucket 12 through the gravel frame 3, and the guide strip 14 guides the gravel to flow in smoothly.

[0058] Telescopic control: The control head 5 receives a signal to control the telescopic control rod 13, and then controls the telescopic node bar 61 through the connecting bar 62 and the connecting block 63. The telescopic node bar 61 causes the inlet bucket 12 and the outlet bucket 17 to open and close to adapt to different working conditions.

[0059] Crushed stone output: Crushed stone is fed into the main frame 16 by the vibration action of the vibrating pile 15, and then evenly output through the outlet bucket 17 and fills the aperture.

[0060] Soil protection: The narrow upper and wide lower design of the outlet bucket 17 helps to reduce friction and impact on the soil inside the aperture. The design of the support sleeve 11 and the elastic body 42 ensures that the soil inside the aperture is supported during the crushed stone output process to avoid collapse.

[0061] like Figure 7 As shown, according to another aspect of the present invention, the workflow of the system is also provided:

[0062] Step 1, introducing the crushed stone into the inlet bucket 12 through the crushed stone frame 3;

[0063] Step 2: Control the extension and retraction of the control rod 13 through the control head 5, and then control the extension and retraction of the node bar 61 to realize the opening and closing of the inlet bucket 12 and the outlet bucket 17;

[0064] Step 3: Use the guide strip 14 to guide the gravel to flow smoothly into the vibrating pile 15. In this process, the gravel flow state detection system detects the gravel flow state in real time, and the control system performs gravel flow optimization control on the gravel entering the gravel pile vibration system according to the gravel flow state.

[0065] In this step, the parameters that need to be collected by the gravel flow state detection system include:

[0066] Gravel velocity V: the speed of movement of the gravel conveyor. Gravel flow Q: the amount of gravel passing through a specific cross section per unit time. Gravel distribution D: the uniformity of distribution of gravel during the conveying process.

[0067] Among them, the uniformity of gravel distribution is:

[0068]

[0069] Among them, xi is the position of the i-th gravel, is the average position and n is the number of gravels.

[0070] Optimization goal: Minimize the unevenness D of the gravel flow while maintaining appropriate velocity V and flow Q.

[0071] Control algorithm:

[0072]

[0073] Where u(t) is the control input, K p , K i , K d is the parameter of the PID controller, D set is the set distribution uniformity, and D is the gravel distribution uniformity.

[0074] The central control system sends the control input u(t) to the control system of the gravel pile vibration device, and the control system adjusts according to u(t): the expansion and contraction of the node bar 61, the opening and closing of the inlet bucket 12 and the outlet bucket 17, and the vibration frequency and amplitude of the vibrating pile 15 to optimize the flow of gravel.

[0075] The gravel flow optimization device is able to monitor and adjust the gravel flow in real time, ensuring that the gravel is evenly and efficiently filled into the aperture while reducing the impact on the environment.

[0076] Step 4: The crushed stone is sent into the main frame through the vibration of the vibrating pile, and then evenly output through the outlet bucket to fill the aperture.

[0077] Specifically, the crushed stone is introduced into the crushing frame 3 through the transport vehicle, and the control head 5 receives the signal to control the control rod 13 to move up and pull the connecting block 63, so that the connecting strip 62 pulls and shortens the range of the node strip 61, and the node strip 61 will bend and shrink in sections, and the connected inlet bucket 12 and outlet bucket 17 will also shrink together, so that the stone pile 1 is placed in the already drilled hole. The upper and lower ends of the support sleeve 11 are in an inclined state, which can be smoother when the whole moves. After the stone pile 1 is placed in the aperture, the control head 5 receives the control signal and moves the control rod 13 back to its original position, so that the node strip 61 loses the pulling force, thereby driving the inlet bucket 12 and the outlet bucket 17 to return to their original positions. The control head 5 controls the bottom of the crushing frame 3 to open and close the opening, so that the crushed stone can smoothly reach the inside of the guide port 2 for transportation. The guide port 2 transmits the crushed stone to the inlet bucket 12, and the crushed stone is evenly input between the vibrating pile 15 and the main frame 16 through the upper wide and lower narrow state. The guide strip 14 on the surface of the inlet bucket 12 guides the crushed stone inside. When the crushed stone is transported to a certain position, the connecting head 4 is connected to the vibration column 53 through the control head 5 and controls the vibration column 53 to vibrate as a whole, thereby helping the crushed stone to be better introduced to the lower end. When the crushed stone is stuck on one side and is continuously squeezed, the rolling ring 52 will be pushed to rotate horizontally by the squeezing force, thereby driving the stuck crushed stone to move sideways. When it moves to a position with a gap, the crushed stone can be smoothly moved to the lower layer through the silky rotation of the swivel 23, and the auxiliary vibration force allows the crushed stone to be transported more compactly to the lower end. When the crushed stone is continuously output to the lower end, the crushed stone is successively output through the outlet bucket 17 to fill the aperture. The upper narrowness and lower wideness of the outlet bucket 17 can make the crushed stone output and fill more evenly and tightly. When the stone pile 1 is continuously filled with crushed stone and continuously moves upward, the support body 41 supported by the elastic body 42 continuously contacts the aperture soil at the upper end of the outlet bucket 17 for support, so that the soil at the upper end of the outlet bucket 17 will not loosen and collapse during the removal process, until the crushed stone 1 is moved out as a whole and the filling is completed.

[0078] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A highway roadbed gravel pile vibration device, It is characterized in that It includes a gravel pile vibration system, a gravel flow state detection system and a control system, among which: The stone pile vibration system comprises a stone pile (1), a guide opening (2), a stone crushing frame (3), a connector (4), and a control head (5); the guide opening (2) is connected to the lower end of the stone crushing frame (3); the connector (4) is connected to the stone pile 1 through the control head 5; The stone pile (1) comprises a support sleeve (11), an inlet bucket (12), a control rod (13), a guide strip (14), a vibrating pile (15), a main frame (16), and an outlet bucket (17). The control rod (13) is connected to the main frame (16). The guide strips (14) are evenly distributed on the inner surface of the inlet bucket (12). The vibrating pile (15) is located at the center of the main frame (16). The support sleeve (11) is sleeved on the outer surface of the main frame (16). The inlet bucket (12) is connected to the main frame (16) and the outlet bucket (17). The vibrating pile (15) is connected to the joint (4) through the control head (5). The guide strip (14) can guide the direction of the introduction of crushed stones. The gravel flow state detection system is used to detect the gravel flow state in real time; The control system is used for optimizing the flow of gravel entering the gravel pile vibration system according to the gravel flow state.

2. A highway roadbed gravel pile vibration device according to claim 1, It is characterized in that The vibration pile (15) comprises a cone head (51), a rolling ring (52), and a vibration column (53). The rolling ring (52) is sleeved on the outer ring of the vibration column (53). The cone head (51) is located at the bottom of the vibration column (53). The vibration column (53) controls the overall vibration through the control head (5). When pushed by an external force, the rolling ring (52) can rotate along the vibration column (53). The rolling ring (52) is provided with seven rollers evenly distributed in horizontal and vertical directions on the outer ring of the vibration column (53). The cone head (51) is a conical structure.

3. A highway roadbed gravel pile vibration device according to claim 1, It is characterized in that The rolling ring (52) comprises a main ring (21), a clamping block (22) and a rotating body (23); the clamping block (22) is fixed to the inner ring surface of the main ring (21), and the rotating body (23) is installed on the outer ring surface of the main ring (21); the rotating bodies (23) are arranged in a group of six and are evenly distributed in a circle; the clamping block (22) can make the whole body smoothly rotate along the groove of the vibration column (53); the main ring (21) rotates in a horizontal direction, and the rotating body (23) rotates in a vertical direction; when the crushed stone is introduced into the aperture through vibration, the rolling ring (52) is driven to rotate according to the introduction thrust of the crushed stone, so that the crushed stone will not be stuck in a certain position and continuously introduced by vibration; the rolling ring (52) can rotate freely and smoothly in two directions, so that the crushed stone can change its position more flexibly.

4. A highway roadbed gravel pile vibration device according to claim 1, It is characterized in that The main frame (16) comprises a node bar (61), a connecting bar (62), and a connecting block (63); the node bar (61) is located at the upper and lower ends of the connecting bar (62) for connection; the connecting block (63) is connected to the connecting bar (62); the connecting block (63) pulls the connecting bar (62) through a control rod (13); the node bar (61) can swing back and contract by pulling the connecting bar (62); the node bar (61) controls the inlet bucket (12) and the outlet bucket (17) to move together; the node bar (61) is located inside the inlet bucket (12) and the outlet bucket (17) for controlling the dynamics; and the outer surface of the connecting bar (62) is a fixed shell that will not deform.

5. A highway roadbed gravel pile vibration device according to claim 1, It is characterized in that The support sleeve (11) comprises a support body (41) and an elastic body (42). The elastic body (42) is fitted between the support body (41) and the main frame (16). The support body (41) is fixed to the outer surface of the main frame (16) at both ends. The middle section of the support body (41) is an extrudable and deformable support layer. The elastic body (42) itself has a certain elastic force to support the support body (41). The support body (41) resists and supports the soil on the inner surface of the aperture. The support body (41) is located at the upper end of the outlet bucket (17). When the outlet bucket (17) continues to move outward, the support body (41) always resists and compresses the soil inside the aperture at the upper end.

6. A highway roadbed gravel pile vibration device according to claim 1, It is characterized in that The upper end of the control rod (13) is connected to the control head (5) for control, the upper and lower ends of the support sleeve (11) are inclined arc-shaped, the middle section of the support sleeve (11) can fit and fix the inner surface of the aperture, the guide strip (14) can follow the change when the inlet bucket (12) is movable and deformed, and the inlet bucket (12) and the outlet bucket (17) can be adjusted and extended according to the size of the aperture when controlled by the control rod (13).

7. A highway roadbed gravel pile vibration device according to claim 4, It is characterized in that The node bar (61) is divided into bendable segments through the nodes. The connection bar (62) is pulled to shorten the spatial distance of the node bar (61) so that the node bar (61) can bend and shrink. The node bar (61) is in a deployed trumpet shape in a static state. The control rod (13) is controlled to move by the control head (5) to drive the connecting block (63) to move, thereby assisting the node bar (61) to extend and retract. The inlet bucket (12) is a structure that is wide at the top and narrow at the bottom, which can assist in controlling the uniform input of the amount of crushed stone.

8. A highway roadbed gravel pile vibration device according to claim 1, It is characterized in that The control system is used for optimizing the flow of gravel entering the gravel pile vibration system according to the gravel flow state, and includes: Where u(t) is the control input, K p , K i , K d is the parameter of the PID controller, D set is the set distribution uniformity, and D is the gravel distribution uniformity.

9. An optimization method for a highway roadbed gravel pile vibration device, It is characterized in that The following steps are involved: Step 1, introducing the crushed stones into the inlet bucket (12) through the crushed stone frame (3); Step 2: Control the extension and retraction of the control rod (13) through the control head (5), thereby controlling the extension and retraction of the node bar (61) to achieve the opening and closing of the inlet bucket (12) and the outlet bucket (17); Step 3, using the guide strip (14) to guide the gravel to flow smoothly into the vibrating pile (15), during which the gravel flow state detection system detects the gravel flow state in real time, and the control system performs gravel flow optimization control on the gravel entering the gravel pile vibration system according to the gravel flow state; Step 4: The crushed stone is sent into the main frame (16) through the vibration of the vibrating pile (15), and then evenly output through the outlet bucket (17) to fill the aperture.

10. The optimization method of a highway roadbed gravel pile vibration device according to claim 9, It is characterized in that In step three, the optimizing control of the flow of gravel entering the gravel pile vibration system includes: Where u(t) is the control input, K p , K i , K d is the parameter of the PID controller, D set is the set distribution uniformity, and D is the gravel distribution uniformity.

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