Mixing pile foundation treatment simulation device

Abstract

The present invention relates to the field of foundation reinforcement technology, and in particular to a mixing pile foundation treatment simulation device, which mainly solves the technical problem that the existing indoor test device for mixing pile foundation treatment is difficult to accurately reproduce the actual parameters. The device is provided with a mixing component and a feeding component. The feeding component transports the material to the hollow area of ​​the shaft and the drill rod and sprays it out from the bulk hole, and cooperates with the movement of the mixing component to achieve mixing and reinforcement treatment of the foundation; the device is also provided with a box, a sliding frame, a sliding plate and a lifting plate. Through the left and right movement of the sliding frame relative to the box, the forward and backward movement of the sliding plate relative to the sliding frame, and the lifting and lowering of the lifting plate relative to the sliding plate, operations at different positions in the box can be achieved; the device is also provided with a control component, which can accurately adjust parameters such as the rotation speed and the mixing depth to simulate the actual engineering conditions to the greatest extent, thereby ensuring the reference value of the indoor results.

Description

Technical Field

[0001] The present invention relates to the technical field of foundation reinforcement, and in particular to a mixing pile foundation treatment simulation device. Background Art

[0002] As a common and effective foundation reinforcement method, mixing pile foundation treatment can improve bearing capacity and reduce settlement deformation. Before practical engineering applications, it is necessary to have a deep understanding of the mechanism of action, influencing factors, and performance under different working conditions.

[0003] In actual projects, the construction of mixing piles involves a combination of parameters such as rotation speed and mixing depth. However, existing indoor test equipment is difficult to accurately reproduce these parameters, resulting in a large deviation between the test results and the actual project conditions. Summary of the Invention

[0004] In order to overcome the technical defect of the existing indoor test device for mixing pile foundation treatment that it is difficult to accurately reproduce actual parameters, the present invention provides a mixing pile foundation treatment simulation device.

[0005] The mixing pile foundation treatment simulation device provided by the present invention comprises:

[0006] a box body, the top of which is open;

[0007] A sliding frame is installed at the opening of the box body and is driven to slide in the left and right directions;

[0008] a sliding plate, which is installed in the sliding frame and is driven to slide in the front-back direction;

[0009] A lifting plate, which is mounted on the sliding plate and is driven to move up and down;

[0010] A shaft rod vertically passes through the lifting plate and is driven to rotate relative to the lifting plate, wherein the lower end of the shaft rod passes through the sliding plate and the sliding frame and extends into the box body;

[0011] A stirring assembly comprising a drill rod, a drill bit and a paddle, wherein the drill rod is coaxially arranged with the shaft and the top end of the drill rod is fixedly connected to the bottom end of the shaft, the drill bit is fixed to the bottom end of the drill rod, and the paddle is fixed to the outer circumferential surface of the drill rod;

[0012] A feeding assembly comprising a feeding bin, a feeding pipe, and a feeding pump. The shaft and drill rod are both hollow structures, and the sidewall of the drill bit is uniformly distributed with material-distributing holes along the axial direction. One end of the feeding pipe is connected to the feeding bin and the other end is connected to the top of the hollow area of ​​the shaft. The feeding pump is used to provide power for the transportation of materials.

[0013] The control component includes a numerical control system and a display system. The numerical control system is used to control the movement of the sliding frame, sliding plate, lifting plate, shaft rod and feeding component, and the display system is used to display working parameters and working status.

[0014] Optionally, a mounting cavity is provided inside the lifting plate, and the lifting plate is mounted on the sliding plate via a first driving assembly and is driven by the first driving assembly, wherein the first driving assembly includes:

[0015] a screw rod arranged vertically and fixed to the sliding plate;

[0016] a gear rotatably mounted in the mounting cavity and screwed onto the screw;

[0017] A first rotary driving member is installed in the installation cavity and is transmission-connected to the gear.

[0018] Optionally, the lifting plate is a rectangular plate, and the four screw rods are provided and respectively corresponding to the four corners of the rectangular plate, each screw rod is threaded with a gear, and the first driving assembly also includes a gear plate and four idler wheels, and the gear plate and the four idler wheels are all rotatably installed in the mounting cavity, the gear plate is coaxial with the shaft rod and the shaft rod gap passes through the gear plate, the four idler wheels are respectively meshed and connected between the four gears and the gear plate, and the first rotating drive member is transmission-connected to the gear plate.

[0019] Optionally, the shaft is driven by a second drive assembly to rotate relative to the lifting plate, and the second drive assembly includes:

[0020] a second rotary driving member, mounted in the mounting cavity;

[0021] A flywheel is fixedly sleeved on the shaft section of the shaft located in the mounting cavity;

[0022] A transmission belt is wound around the output shaft of the second rotation driving member and the flywheel.

[0023] The cam is connected to the deck panel with an camming mechanism, and the camming mechanism is connected to the deck panel with an camming mechanism, and the camming mechanism is connected to the deck panel with an camming mechanism.

[0024] Optionally, a accommodating cavity is provided inside the movable plate, and two symmetrically arranged wedge-shaped blades are provided in the accommodating cavity. The upper ends of the wedge-shaped blades are hinged in the accommodating cavity and the lower ends are connected to a third drive component. The third drive component drives the wedge-shaped blades to rotate so that the wedge-shaped blades have a working state of extending out of the accommodating cavity and a storage state of being accommodated in the accommodating cavity, and when the wedge-shaped blades are in the working state, they are used to make up for the empty space between adjacent plate groups in the variable diameter state.

[0025] Optionally, the third driving component includes:

[0026] a linear drive member, which is installed in the accommodating cavity with its output shaft facing downward;

[0027] a first connecting rod, the upper end of which is hinged to the output shaft of the linear drive member;

[0028] Two second connecting rods are provided and symmetrically distributed. The upper end of the second connecting rod is hinged to the lower end of the first connecting rod, and the lower ends of the two second connecting rods are respectively hinged to the bottoms of the two wedge-shaped blades.

[0029] Optionally, the bottom end of the shaft is detachably connected to the top end of the drill rod.

[0030] Optionally, the mixing pile foundation treatment simulation device further includes a tamping assembly, which is used to replace the mixing assembly and is installed below the shaft, and the tamping assembly includes:

[0031] a guide rail, which is detachably fixed to the sliding plate and arranged vertically;

[0032] a mounting post slidably connected to the guide rail;

[0033] a tamping head fixed to the bottom end of the mounting post;

[0034] A connecting post, which is detachably connected to the bottom end of the shaft, wherein the outer circumferential surface of the connecting post is provided with a corrugated guide groove, wherein the corrugated guide groove has a plurality of high points and low points arranged alternately and forms a closed ring;

[0035] A fixing ring fixedly sleeved on the mounting post;

[0036] A connecting rod has one end fixedly connected to the fixing ring and the other end placed in the corrugated guide groove.

[0037] Optionally, a first connecting plate is provided at the bottom end of the shaft, and a second connecting plate is provided at the top end of the drill rod and the top end of the connecting column, and the first connecting plate and the second connecting plate are fixedly connected by a clamp.

[0038] The technical solution provided by the present invention has the following advantages compared with the prior art:

[0039] The mixing pile foundation treatment simulation device provided by the present invention is provided with a mixing component and a feeding component. The feeding component transports the material to the hollow area of ​​the shaft rod and the drill rod and sprays it out from the bulk hole, and cooperates with the movement of the mixing component to realize the mixing and reinforcement treatment of the foundation; the device is also provided with a box body, a sliding frame, a sliding plate and a lifting plate. Through the left and right movement of the sliding frame relative to the box body, the forward and backward movement of the sliding plate relative to the sliding frame, and the lifting and lowering of the lifting plate relative to the sliding plate, operations at different positions in the box body can be realized; the device is also provided with a control component, and the control component includes a numerical control system and a display system. The numerical control system and the display system can cooperate to accurately adjust parameters such as the rotation speed and mixing depth to simulate the actual engineering conditions to the greatest extent, thereby ensuring the reference value of the indoor results. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0041] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0042] Figure 1 A schematic diagram showing the overall structure of the device in a stirring state according to an embodiment of the present invention;

[0043] Figure 2 A schematic diagram showing the structure of a lifting plate and related components according to an embodiment of the present invention;

[0044] Figure 3 An exploded view of a stirring assembly according to an embodiment of the present invention is shown;

[0045] Figure 4 A schematic diagram showing the structure of the plate assembly in a variable diameter state according to an embodiment of the present invention;

[0046] Figure 5 A schematic diagram showing the structure of the plate group in the embodiment of the present invention when the plate group is in a state of equal diameter;

[0047] Figure 6 A schematic diagram showing the structure of the wedge-shaped blades in the working state according to an embodiment of the present invention;

[0048] Figure 7 A schematic diagram showing the structure of the wedge-shaped blades in the stowed state according to an embodiment of the present invention;

[0049] Figure 8A schematic diagram showing the overall structure of the device in a compacting state according to an embodiment of the present invention;

[0050] Figure 9 An exploded view of a compacting assembly according to an embodiment of the present invention is shown.

[0051] In the picture:

[0052] 1. Box; 2. Sliding frame; 3. Sliding plate; 4. Lifting plate; 41. Mounting cavity; 42. First drive assembly; 421. Screw; 422. Gear; 423. First rotary drive member; 424. Toothed disc; 425. Idle pulley; 426. Reaction plate; 43. Open box; 44. Cover; 5. Shaft; 51. Second drive assembly; 511. Second rotary drive member; 512. Flywheel; 513. Drive belt; 52. First connecting disc; 53. Second connecting disc; 54. Clamp; 6. Stirring assembly; 61. Drill rod; 611. Groove; 62. Drill bit; 621 , bulk material hole; 63, paddle; 64, movable plate; 641, accommodating chamber; 642, wedge-shaped blade; 643, third drive assembly; 6431, linear drive member; 6432, first connecting rod; 6433, second connecting rod; 65, telescopic rod; 66, articulated seat; 7, feeding assembly; 71, feeding bin; 72, feeding pipe; 73, feeding pump; 8, control assembly; 81, CNC system; 82, display system; 9, tamping assembly; 91, guide rail; 92, mounting column; 93, tamping head; 94, connecting column; 941, corrugated guide groove; 95, fixing ring; 96, connecting rod. DETAILED DESCRIPTION

[0053] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the scheme of the present invention will be further described below. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0054] In the description, it should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance. It should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, removable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms based on specific circumstances.

[0055] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present invention, rather than all the embodiments.

[0056] The following combination Figures 1 to 9 Specific embodiments of the present invention are described in detail.

[0057] This embodiment provides a mixing pile foundation treatment simulation device, which includes a box body 1, a sliding frame 2, a sliding plate 3, a lifting plate 4, a shaft 5, a mixing component 6, a feeding component 7 and a control component 8.

[0058] The top of the box body 1 is open.

[0059] Specifically, the shape of the box body 1 is a rectangular parallelepiped, and the stirring assembly 6 can reach any position of the box body 1 by moving forward and backward, left and right, and lifting and lowering. Of course, the box body 1 can be set to a cylindrical or prismatic or special shape or other shapes.

[0060] Specifically, a guide rail is fixed to the open edge of the box body 1, and the guide rail is fixedly connected to the box body 1 by buckles.

[0061] The sliding frame 2 is installed at the opening of the box body 1 and is driven to slide in the left and right directions.

[0062] Specifically, the sliding frame 2 is a rectangular frame, and the front and rear edges of the rectangular frame are slidably connected to the guide rails of the box body 1 .

[0063] Specifically, the sliding frame 2 slides left and right via two sets of reels working in conjunction with steel cables. The reels are connected to the sliding frame 2 via steel cables. During operation, one set of reels reels in and the other unwinds, and the two reels work together to drive the sliding frame 2 to move smoothly left and right. Of course, the left and right movement of the sliding frame 2 can also be achieved by an electric push rod, a linear motor, or other commonly used linear power elements.

[0064] The sliding plate 3 is installed in the sliding frame 2 and is driven to slide in the front-back direction.

[0065] Specifically, the sliding plate 3 is a rectangular plate, and the left and right edges of the rectangular plate are slidably connected to the left and right edges of the sliding frame 2 .

[0066] Specifically, the sliding plate 3 slides forward and backward via two sets of reels in conjunction with steel cables. The reels are connected to the sliding plate 3 via steel cables. During operation, one set of reels reels in and the other unwinds, and the two reels cooperate to drive the sliding plate 3 to move smoothly forward and backward. Of course, the forward and backward movement of the sliding plate 3 can also be achieved by an electric push rod, a linear motor, or other commonly used linear power elements.

[0067] The lifting plate 4 is installed on the sliding plate 3 and is driven to move up and down.

[0068] Specifically, the interior of the lifting plate 4 is provided with a mounting cavity 41. The lifting plate 4 is mounted on the sliding plate 3 via a first drive assembly 42 and is driven by the first drive assembly 42. The first drive assembly 42 includes a screw 421, a gear 422, and a first rotary drive member 423. The screw 421 is vertically arranged and fixed to the sliding plate 3. The gear 422 is rotatably mounted in the mounting cavity 41 and is screwed onto the screw 421. The first rotary drive member 423 is mounted in the mounting cavity 41 and is in transmission connection with the gear 422. During operation, the first rotary drive member 423 drives the gear 422 to rotate. Since the gear 422 is screwed onto the screw 421, the gear 422 moves up and down along the screw 421 while rotating, thereby driving the lifting plate 4 to rise and fall.

[0069] It is easy to understand that the lifting plate 4 needs to adopt a spliced ​​structure of an open box body 43 and a cover body 44. The cover body 44 is fixed at the open part of the open box body 43. The cover body 44 and the open box body 43 form an installation cavity 41, which is more conducive to the installation of the internal structure of the lifting plate 4.

[0070] More specifically, the lifting plate 4 is a rectangular plate with four screws 421 disposed at each of the four corners of the rectangular plate. Each screw 421 is threadedly connected to a gear 422. The first drive assembly 42 also includes a toothed disc 424 and four idler gears 425. The toothed disc 424 and the four idler gears 425 are rotatably mounted within the mounting cavity 41. The toothed disc 424 is coaxial with the shaft 5, and the shaft 5 has a gap extending through the toothed disc 424. The four idler gears 425 are respectively meshed and connected between the four gears 422 and the toothed disc 424. The first rotary drive member 423 is in transmission connection with the toothed disc 424. During operation, the first rotary drive member 423 drives the toothed disc 424 to rotate, which in turn drives the four gears 422 to rotate via the four idler gears 425, thereby achieving the lifting and lowering of the lifting plate 4. The four screws 421 cooperate to improve the stability of the movement of the lifting plate 4.

[0071] Furthermore, in order to ensure the stability of the structure of the four screw rods 421, a reaction plate 426 is fixed to the top of the screw rods 421 in this embodiment. The reaction plate 426 allows the four screw rods 421 to form an integral structure, which greatly improves the stability.

[0072] It should be noted that, since the rotation of the toothed disc 424 and the rotation of the shaft 5 are two independent movements, the shaft 5 needs to pass through the toothed disc 424 with a gap to avoid mutual interference.

[0073] In detail, the first rotating drive component 423 is a combination structure of a motor and a transmission wheel. The motor is installed in the installation cavity 41 and the transmission wheel is mounted on the output shaft. The transmission wheel is engaged with the gear plate 424. When the output shaft of the motor rotates, the gear plate 424 is driven to rotate through the transmission wheel.

[0074] It should be noted that, in theory, the gear 422 placed in the mounting cavity 41 can drive the lifting plate 4 to rise and fall. However, since the gear 422 also rotates, to prevent friction between the gear 422 and the bottom or top of the mounting cavity 41, a first annular groove can be provided on the upper and lower end surfaces of the gear 422, and a second annular groove can be provided on the top and bottom of the mounting cavity 41, respectively. A plurality of balls can be placed in the first and second annular grooves. This enables rolling contact between the gear 422 and the cavity wall of the mounting cavity 41, thereby reducing friction. Similarly, to reduce friction between the toothed disc 424 and the cavity wall of the mounting cavity 41, the aforementioned ball bearings and other structures can also be provided on both end surfaces of the toothed disc 424.

[0075] The shaft 5 vertically penetrates the lifting plate 4 and is driven to rotate relative to the lifting plate 4 . The lower end of the shaft 5 penetrates the sliding plate 3 and the sliding frame 2 and extends into the box body 1 .

[0076] It is easy to understand that the shaft 5 can rotate relative to the lifting plate 4, but needs to move synchronously with the lifting plate 4 in the axial direction so as to drive the shaft 5 to rise and fall when the lifting plate 4 rises and falls.

[0077] Specifically, in order to ensure the rotational stability of the shaft 5 relative to the lifting plate 4, a bearing can be installed between the shaft 5 and the lifting plate 4, so that the inner ring of the bearing is fixed on the shaft 5 and the outer ring of the bearing is fixed on the lifting plate 4. The bearing can withstand a certain axial force and can also ensure that the shaft 5 is driven to rise and fall synchronously when the lifting plate 4 is raised and lowered.

[0078] Specifically, the shaft 5 is driven by a second drive assembly 51 to rotate relative to the lifting plate 4. The second drive assembly 51 includes a second rotary drive member 511, a flywheel 512, and a transmission belt 513. The second rotary drive member 511 is mounted within the mounting cavity 41. The flywheel 512 is fixedly mounted on the shaft portion of the shaft 5 located within the mounting cavity 41. The transmission belt 513 is wound around the output shaft of the second rotary drive member 511 and the flywheel 512. During operation, the second rotary drive member 511 rotates the flywheel 512 via the transmission belt 513, thereby rotating the shaft 5.

[0079] It is easy to understand that when the lifting plate 4 moves up and down, the second drive assembly 51 moves up and down synchronously with the lifting plate 4, thereby ensuring that the axial position of the second rotary drive member 511, the flywheel 512 and the transmission belt 513 relative to the shaft 5 remains unchanged, thereby ensuring the stability of the rotation of the shaft 5.

[0080] The stirring assembly 6 includes a drill rod 61, a drill bit 62, and a paddle 63. The drill rod 61 is coaxially arranged with the shaft 5, and the top end of the drill rod 61 is fixedly connected to the bottom end of the shaft 5. The drill bit 62 is fixed to the bottom end of the drill rod 61, and the paddle 63 is fixed to the outer circumference of the drill rod 61. During operation, the shaft 5 rotates, driving the drill rod 61 to rotate, thereby driving the drill bit 62 and the paddle 63 to rotate.

[0081] Specifically, a plurality of plate groups uniformly distributed along the circumferential direction are arranged on the outer circumferential surface of the drill rod 61, and each plate group includes two movable plates 64 distributed above and below. The plate surface of the movable plate 64 is set to an arc surface so that it can fit the drill rod 61, and the two movable plates 64 are hingedly connected. The inner side of the end of the movable plate 64 close to the other movable plate 64 of the same plate group is connected to the drill rod 61 through a telescopic rod 65, and the two ends of the telescopic rod 65 are hinged to the movable plate 64 and the drill rod 61 respectively. The inner side of the end of the movable plate 64 away from the other movable plate 64 of the same plate group is hinged to the drill rod 61 through a hinge seat 66, and the hinge seat 66 located above or below in each plate group can move vertically along the drill rod 61. The outer circumferential surface of the drill rod 61 is provided with a groove 611 for accommodating the telescopic rod 65 and the hinge seat 66. The paddle 63 is a circumferentially split structure and is arranged corresponding to the movable plate 64. The telescopic rod 65 drives the movable plate 64 to move so that the plate group has a variable diameter state and a constant diameter state. When in use, the movement of the telescopic rod 65 can drive the movable plate 64 to open or close, so that the plate group can switch between the variable diameter state and the equal diameter state, so that the device can meet the construction requirements of both single-section mixing piles and variable-section mixing piles, thereby improving the functionality and flexibility of the device.

[0082] More specifically, a accommodating chamber 641 is provided inside the movable plate 64, and two symmetrically arranged wedge-shaped blades 642 are provided in the accommodating chamber 641. The upper end of the wedge-shaped blade 642 is hinged in the accommodating chamber 641 and the lower end is connected to a third driving component 643. The third driving component 643 drives the wedge-shaped blade 642 to rotate so that the wedge-shaped blade 642 has a working state extending out of the accommodating chamber 641 and a storage state accommodated in the accommodating chamber 641, and when the wedge-shaped blade 642 is in the working state, it is used to make up for the empty space between adjacent plate groups in the variable diameter state.

[0083] It is easy to understand that when the movable plate 64 is opened, an empty space will be formed between the adjacent plate groups due to the outward expansion of the movable plate 64. Therefore, this embodiment adds a wedge-shaped blade 642 on the inner side of the movable plate 64, which can not only make up for the empty space of the adjacent plate groups when the movable plate 64 is opened, but also avoid interfering with the contact of the adjacent plate groups when the movable plate 64 is closed.

[0084] In detail, the third drive assembly 643 includes a linear drive member 6431, a first connecting rod 6432, and a second connecting rod 6433. The linear drive member 6431 is installed in the accommodating chamber 641 with its output shaft facing downward. The upper end of the first connecting rod 6432 is hinged to the output shaft of the linear drive member 6431. Two second connecting rods 6433 are provided and symmetrically distributed. The upper end of the second connecting rod 6433 is hinged to the lower end of the first connecting rod 6432, and the lower ends of the two second connecting rods 6433 are respectively hinged to the bottom of the two wedge-shaped blades 642. During operation, the linear drive member 6431 drives the two second connecting rods 6433 through the first connecting rod 6432 to overlap or form an angle, thereby driving the wedge-shaped blades 642 to switch between the working state and the storage state.

[0085] In more detail, the linear drive member 6431 is a hydraulic rod.

[0086] Specifically, the bottom end of the shaft 5 is detachably connected to the top end of the drill rod 61 , which facilitates the disassembly and replacement of the stirring assembly 6 .

[0087] More specifically, a first connecting plate 52 is provided at the bottom end of the shaft 5 , and a second connecting plate 53 is provided at the top end of the drill rod 61 . The first connecting plate 52 and the second connecting plate 53 are fixedly connected by a clamp 54 .

[0088] It is easy to understand that since the shaft 5 and the drill rod 61 both rotate when working, the driving parts attached to the drill rod 61, such as the telescopic rod 65, the linear driving part 6431, etc., can achieve rotational electrical contact through the slip ring structure. Specifically, the slip ring can be fixed at the top of the shaft 5, the cable of the driving part can be connected to the slip ring, and then the external cable can be in sliding contact with the slip ring to achieve power supply; or the driving part can be set to a wireless control structure. This is all mature technology in this field and will not be introduced in detail here.

[0089] The feed assembly 7 comprises a feed bin 71, a feed pipe 72, and a feed pump 73. Both the shaft 5 and the drill rod 61 are hollow structures, and the drill bit 62 has material distribution holes 621 distributed axially along its sidewall. One end of the feed pipe 72 is connected to the feed bin 71, and the other end is connected to the top of the hollow area of ​​the shaft 5. The feed pump 73 provides power for material transportation. During operation, the material is stored in the feed bin 71. Under the pressure of the feed pump 73, the material is pumped through the feed pipe 72 into the hollow area of ​​the shaft 5, then into the hollow area of ​​the drill rod 61, and finally ejected from the material distribution holes 621 in the drill bit 62.

[0090] It should be noted that the feed bin 71 can store one or a mixture of at least two of powder, slurry or gas to meet different types of mixing operations of solid, liquid and gas, thereby being able to more realistically simulate different on-site construction conditions.

[0091] It should be noted that, since the shaft 5 may move horizontally or up and down, the feed pipe 72 needs to be designed as a hose so as to avoid affecting the movement of the shaft 5 while maintaining connection with the top of the shaft 5 .

[0092] It should be noted that, since the feed pump 73 has a certain pumping pressure, a cover body needs to be configured on the top of the hollow area of ​​the shaft 5, and then a rotary seal is formed between the feed pipe 72 and the cover body. This is easy to design for those skilled in the art and will not be elaborated here.

[0093] Among them, the control component 8 includes a numerical control system 81 and a display system 82. The numerical control system 81 is used to control the movement of the sliding frame 2, the sliding plate 3, the lifting plate 4, the shaft 5 and the feeding component 7, and the display system 82 is used to display the working parameters and working status.

[0094] It is easy to understand that a program can be written into the numerical control system 81 to control the automated actions of each structure according to the program; the display system 82 can visualize the working status and working parameters for the operator to read.

[0095] Furthermore, the mixing pile foundation treatment simulation device of this embodiment is also provided with a tamping assembly 9, which is used to replace the mixing assembly 6 and is installed under the shaft 5. The tamping assembly 9 includes a guide rail 91, a mounting column 92, a tamping head 93, a connecting column 94, a fixing ring 95 and a connecting rod 96. The guide rail 91 is used to be detachably fixed on the sliding plate 3 and is arranged vertically. The mounting column 92 is slidably connected to the guide rail 91. The tamping head 93 is fixed to the bottom end of the mounting column 92. The connecting column 94 is used to be detachably connected to the bottom end of the shaft 5. A corrugated guide groove 941 is provided on the outer circular surface of the connecting column 94. The corrugated guide groove 941 has multiple high points and low points arranged alternately and forms a closed ring. The fixing ring 95 is fixedly sleeved on the mounting column 92. One end of the connecting rod 96 is fixedly connected to the fixing ring 95 and the other end is placed in the corrugated guide groove 941. During operation, the shaft 5 rotates, driving the connecting post 94 to rotate. This, driven by the corrugated guide groove 941, causes the connecting rod 96, the fixing ring 95, and the mounting post 92 to move back and forth as a whole, thereby achieving the compaction operation of the compacting head 93. The frequency of the compaction action of the compacting head 93 can be adjusted by adjusting the rotation speed of the shaft 5. The combination of the compacting assembly 9 and the stirring assembly 6 enables this device to have both compaction and stirring functions, maximally simulating the on-site construction process, better carrying out different types of test operations, and meeting different test requirements.

[0096] Specifically, a first connecting plate 52 is provided at the bottom end of the shaft 5 , and a second connecting plate 53 is provided at the top end of the connecting column 94 . The first connecting plate 52 and the second connecting plate 53 are fixedly connected by a clamp 54 .

[0097] More specifically, the first connecting plate 52 and the second connecting plate 53 are both provided with cross-distributed notches, and the inner side of the clamp 54 is correspondingly provided with cross-distributed protrusions. When the clamp 54 connects the first connecting plate 52 and the second connecting plate 53, circumferential positioning can be achieved through the protrusions and notches, which is more conducive to ensuring the reliability of the connection.

[0098] The working principle of the mixing pile foundation treatment simulation device of this embodiment is as follows:

[0099] During the mixing operation, the drill rod 61 is connected to the bottom of the shaft 5, and the material is fed through the feeding assembly 7. The material passes through the hollow area of ​​the shaft 5 and the drill rod 61 and is ejected from the bulk hole 621, thereby mixing and reinforcing the foundation. By the left and right movement of the sliding frame 2 relative to the box body 1, the front and rear movement of the sliding plate 3 relative to the sliding frame 2, and the lifting and lowering of the lifting plate 4 relative to the sliding plate 3, operations at different positions in the box body 1 can be achieved. The action of the telescopic rod 65 and the linear drive member 6431 can complete the switching of the movable plate 64 between the constant diameter state and the variable diameter state, thereby adapting to the construction of single-section mixing piles or variable-section mixing piles.

[0100] During the tamping operation, the stirring assembly 6 is removed and the connecting column 94 is connected to the bottom of the shaft 5. The rotation of the shaft 5 drives the tamping head 93 to move back and forth to achieve the tamping effect; the left and right movement of the sliding frame 2 relative to the box body 1, the forward and backward movement of the sliding plate 3 relative to the sliding frame 2, and the lifting and lowering of the lifting plate 4 relative to the sliding plate 3 can realize operations at different positions in the box body 1.

[0101] The above is merely a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Although detailed descriptions have been made with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents; and such modifications or replacements do not deviate from the essence of the corresponding technical solutions within the scope of the technical solutions of the embodiments, and they should all be covered by the scope of protection of the claims.

Claims

1. A mixing pile foundation treatment simulation device, characterized in that: include: A box body (1) with an open top; A sliding frame (2) is mounted on the opening of the box body (1) and is driven to slide in left and right directions; A sliding plate (3) is installed in the sliding frame (2) and is driven to slide in a front-back direction; A lifting plate (4) is mounted on the sliding plate (3) and is driven to move up and down; A shaft (5) vertically passes through the lifting plate (4) and is driven to rotate relative to the lifting plate (4), wherein the lower end of the shaft (5) passes through the sliding plate (3) and the sliding frame (2) and extends into the box body (1); A stirring assembly (6) comprising a drill rod (61), a drill bit (62) and a paddle (63), wherein the drill rod (61) is coaxially arranged with the shaft rod (5) and the top end of the drill rod (61) is fixedly connected to the bottom end of the shaft rod (5), the drill bit (62) is fixed to the bottom end of the drill rod (61), and the paddle (63) is fixed to the outer circumferential surface of the drill rod (61); a plurality of plate groups uniformly distributed along the circumferential direction are arranged on the outer circumferential surface of the drill rod (61), each plate group comprises two movable plates (64) distributed in an upper and lower direction, the plate surface of the movable plate (64) is set as an arc surface so as to fit the drill rod (61), the two movable plates (64) are hingedly connected, and the movable plates (64) are close to the same plate. The inner side of the end of another movable plate (64) of the group is connected to the drill rod (61) through a telescopic rod (65), and the two ends of the telescopic rod (65) are respectively hinged to the movable plate (64) and the drill rod (61). The inner side of the end of the movable plate (64) away from the other movable plate (64) of the same plate group is hinged to the drill rod (61) through a hinge seat (66), and the hinge seat (66) located above or below in each plate group can move vertically along the drill rod (61). The outer circumferential surface of the drill rod (61) is provided with a groove (611) for accommodating the telescopic rod (65) and the hinge seat (66). The paddle (63) is a circumferential split structure and is arranged corresponding to the movable plate (64). The telescopic rod (65) is hinged to the drill rod (61). The rod (65) drives the movable plate (64) to move so that the plate group has a variable diameter state and a constant diameter state; the movable plate (64) is provided with a receiving chamber (641) inside, and two symmetrically arranged wedge-shaped blades (642) are provided in the receiving chamber (641), and the upper ends of the wedge-shaped blades (642) are hinged in the receiving chamber (641) and the lower ends are connected to a third driving component (643), and the third driving component (643) drives the wedge-shaped blades (642) to rotate so that the wedge-shaped blades (642) have a working state of extending out of the receiving chamber (641) and a storage state of being stored in the receiving chamber (641), and when the wedge-shaped blades (642) are in the working state Used to make up for the empty space between adjacent plate groups in the variable diameter state; the third driving assembly (643) includes a linear driving member (6431), a first connecting rod (6432) and a second connecting rod (6433), the linear driving member (6431) is installed in the accommodating cavity (641) with the output shaft facing downward, the upper end of the first connecting rod (6432) is hinged to the output shaft of the linear driving member (6431), and the second connecting rod (6433) is provided with two and symmetrically distributed, the upper end of the second connecting rod (6433) is hinged to the lower end of the first connecting rod (6432), and the lower ends of the two second connecting rods (6433) are respectively hinged to the bottom of the two wedge-shaped blades (642); A feeding assembly (7), comprising a feeding bin (71), a feeding pipe (72) and a feeding pump (73), wherein the shaft (5) and the drill rod (61) are both hollow structures, and the side wall of the drill bit (62) is uniformly distributed with scattered material holes (621) along the axial direction, one end of the feeding pipe (72) is connected to the feeding bin (71) and the other end is connected to the top of the hollow area of ​​the shaft (5), and the feeding pump (73) is used to provide power for the transportation of materials; A control component (8) includes a numerical control system (81) and a display system (82), wherein the numerical control system (81) is used to control the movement of the sliding frame (2), the sliding plate (3), the lifting plate (4), the shaft (5) and the feeding component (7), and the display system (82) is used to display working parameters and working status.

2. The mixing pile foundation treatment simulation device according to claim 1, characterized in that: The lifting plate (4) is provided with a mounting cavity (41) therein. The lifting plate (4) is mounted on the sliding plate (3) via a first driving assembly (42) and is driven by the first driving assembly (42). The first driving assembly (42) comprises: a screw (421) arranged vertically and fixed on the sliding plate (3); a gear (422) rotatably mounted in the mounting cavity (41) and screwed onto the screw (421); A first rotary driving member (423) is installed in the installation cavity (41) and is transmission-connected to the gear (422).

3. The mixing pile foundation treatment simulation device according to claim 2, characterized in that: The lifting plate (4) is a rectangular plate. Four screw rods (421) are provided and are respectively arranged corresponding to the four corners of the rectangular plate. Each screw rod (421) is screwed with a gear (422). The first driving assembly (42) also includes a toothed disc (424) and four idler wheels (425). The toothed disc (424) and the four idler wheels (425) are all rotatably installed in the installation cavity (41). The toothed disc (424) is coaxial with the shaft (5) and the shaft (5) has a gap passing through the toothed disc (424). The four idler wheels (425) are respectively meshed and connected between the four gears (422) and the toothed disc (424). The first rotating driving member (423) is transmission-connected to the toothed disc (424).

4. The mixing pile foundation treatment simulation device according to claim 2, characterized in that: The shaft (5) is driven by a second drive assembly (51) to rotate relative to the lifting plate (4), and the second drive assembly (51) includes: a second rotary driving member (511), mounted in the mounting cavity (41); a flywheel (512) fixedly sleeved on the shaft section of the shaft rod (5) located in the mounting cavity (41); A transmission belt (513) is wound around the output shaft of the second rotary drive member (511) and the flywheel (512).

5. The mixing pile foundation treatment simulation device according to any one of claims 1 to 4, characterized in that: The bottom end of the shaft rod (5) is detachably connected to the top end of the drill rod (61).

6. The mixing pile foundation treatment simulation device according to claim 5, characterized in that: It also includes a tamping assembly (9), which is used to replace the stirring assembly (6) and is installed below the shaft (5). The tamping assembly (9) includes: A guide rail (91) is detachably fixed to the sliding plate (3) and is arranged vertically; A mounting post (92) slidably connected to the guide rail (91); a tamping head (93) fixed to the bottom end of the mounting post (92); A connecting column (94) is detachably connected to the bottom end of the shaft (5), and a corrugated guide groove (941) is provided on the outer circumferential surface of the connecting column (94), and the corrugated guide groove (941) has a plurality of high points and low points arranged alternately and forms a closed ring; A fixing ring (95) fixedly sleeved on the mounting post (92); A connecting rod (96) has one end fixedly connected to the fixing ring (95) and the other end placed in the corrugated guide groove (941).

7. The mixing pile foundation treatment simulation device according to claim 6, characterized in that: The bottom end of the shaft (5) is provided with a first connecting plate (52), the top end of the drill rod (61) and the top end of the connecting column (94) are both provided with a second connecting plate (53), and the first connecting plate (52) and the second connecting plate (53) are fixedly connected by a clamp (54).

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