Mixing pile foundation treatment simulation device

Abstract

The invention relates to the technical field of foundation reinforcement, in particular to a mixing pile foundation treatment simulation device, and mainly solves the technical problem that an existing indoor test device for mixing pile foundation treatment is difficult to accurately reproduce actual parameters. The device is provided with the stirring assembly and the feeding assembly, the feeding assembly conveys materials to the hollow areas of the shaft rod and the drill rod and sprays the materials out of the material dispersing holes, and stirring reinforcement treatment on a foundation is achieved in cooperation with movement of the stirring assembly; the device is further provided with a box body, a sliding frame, a sliding plate and a lifting plate, and operation at different positions in the box body can be achieved through left-right movement of the sliding frame relative to the box body, front-back movement of the sliding plate relative to the sliding frame and lifting cooperation of the lifting plate relative to the sliding plate. The device is further provided with a control assembly, and the control assembly can accurately adjust parameters such as the rotating speed and the stirring depth so as to simulate actual engineering conditions to the maximum extent, so that the reference of indoor results is guaranteed.

Description

Technical Field

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

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

[0003] In actual engineering, the construction of mixing piles involves parameter combinations such as rotation speed and mixing depth. However, existing indoor test devices are difficult to accurately reproduce these parameters, resulting in a large deviation between test results and actual engineering situations. Summary of the Invention

[0004] To overcome the technical defect that existing indoor test devices for mixing pile foundation treatment are difficult to accurately reproduce actual parameters, the present invention provides a simulation device for mixing pile foundation treatment.

[0005] The simulation device for mixing pile foundation treatment provided by the present invention includes: A box body with an open top; A sliding frame installed at the open part of the box body and driven to slide in the left-right direction; A sliding plate installed in the sliding frame and driven to slide in the front-back direction; A lifting plate installed on the sliding plate and driven to perform lifting motion; A shaft rod vertically penetrating through the lifting plate and driven to rotate relative to the lifting plate. The lower end of the shaft rod penetrates through the sliding plate and the sliding frame and extends into the box body; A mixing assembly including a drill rod, a drill bit, and paddle blades. The drill rod is coaxially arranged with the shaft rod, and the top end of the drill rod is fixedly connected to the bottom end of the shaft rod. The drill bit is fixed at the bottom end of the drill rod, and the paddle blades are fixed on the outer circumferential surface of the drill rod; A feeding assembly including a feeding bin, a feeding pipe, and a feeding pump. Both the shaft rod and the drill rod are hollow structures, and the side wall of the drill bit is axially provided with evenly distributed material scattering holes. One end of the feeding pipe is communicated with the feeding bin, and the other end is communicated with the top of the hollow area of the shaft rod. The feeding pump provides power for the transportation of materials; A control assembly including a numerical control system and a display system. The numerical control system is used to control the actions of the sliding frame, the sliding plate, the lifting plate, the shaft rod, and the feeding assembly, and the display system is used to display working parameters and working states.

[0006] Optionally, an installation cavity is provided inside the lifting plate. The lifting plate is installed on the sliding plate by a first driving assembly and is driven by the first driving assembly. The first driving assembly includes: A screw rod, which is vertically arranged and fixed on the sliding plate; A gear, which is rotatably installed in the installation cavity and is screwed on the screw rod; A first rotary driving member, which is installed in the installation cavity and is in transmission connection with the gear.

[0007] Optionally, the lifting plate is a rectangular plate. Four screw rods are provided and are respectively arranged corresponding to the four corners of the rectangular plate. Each screw rod is screwed with a gear. The first driving assembly further includes a toothed disc and four idler wheels. The toothed disc and the four idler wheels are all rotatably installed in the installation cavity. The toothed disc is coaxial with the shaft rod and the shaft rod passes through the toothed disc with a gap. The four idler wheels are respectively meshed and connected between the four gears and the toothed disc. The first rotary driving member is in transmission connection with the toothed disc.

[0008] Optionally, the shaft rod is driven by a second driving assembly to be able to rotate relative to the lifting plate. The second driving assembly includes: A second rotary driving member, which is installed in the installation cavity; A flywheel, which is fixedly sleeved on the shaft section of the shaft rod located in the installation cavity; A transmission belt, which is wound around the output shaft of the second rotary driving member and the flywheel.

[0009] Optionally, a plurality of plate groups are arranged on the outer circumferential surface of the drill pipe in a circumferentially evenly distributed manner. Each plate group includes two movable plates distributed up and down. The plate surface of the movable plate is set as an arc surface to be able to fit the drill pipe. The two movable plates are hinged together. The inner side of the end of the movable plate close to the other movable plate of the same plate group is connected to the drill pipe through a telescopic rod. The two ends of the telescopic rod are respectively hinged to the movable plate and the drill pipe. The inner side of the end of the movable plate far from the other movable plate of the same plate group is hinged to the drill pipe through a hinge seat. And the hinge seat located above or below in each plate group can move vertically along the drill pipe. A groove for accommodating the telescopic rod and the hinge seat is opened on the outer circumferential surface of the drill pipe. The paddle is a circumferentially split structure and is arranged corresponding to the movable plate. The telescopic rod drives the movable plate to move so that the plate group has a variable diameter state and an equal diameter state.

[0010] Optionally, an accommodation cavity is provided inside the movable plate. Two symmetrically arranged wedge-shaped blades are provided in the accommodation cavity. The upper end of the wedge-shaped blade is hinged in the accommodation cavity and the lower end is connected with a third driving assembly. The third driving assembly drives the wedge-shaped blade to rotate so that the wedge-shaped blade has a working state of extending out of the accommodation cavity and a storage state of being received in the accommodation cavity. And when the wedge-shaped blade is in the working state, it is used to make up for the void area between adjacent plate groups in the variable diameter state.

[0011] Optionally, the third driving assembly includes: A linear driving member, which is installed in the accommodating cavity and has an output shaft facing downward; A first connecting rod, the upper end of which is hinged to the output shaft of the linear driving member; There are two second connecting rods, which are symmetrically distributed. The upper ends of the second connecting rods are 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.

[0012] Optionally, the bottom end of the shaft rod is detachably connected to the top end of the drill rod.

[0013] Optionally, the mixing pile foundation treatment simulation device further includes a ramming assembly, which is used to replace the mixing assembly and is installed below the shaft rod. The ramming assembly includes: A guide rail, which is used to be detachably fixed on the sliding plate and is vertically arranged; An installation column, which is slidably connected to the guide rail; A ramming head, which is fixed to the bottom end of the installation column; A connecting column, which is used to be detachably connected to the bottom end of the shaft rod. The outer circumferential surface of the connecting column is provided with a corrugated guide groove, and the corrugated guide groove has a plurality of high points and low points arranged alternately and forms a closed ring; A fixing ring, which is fixedly sleeved on the installation column; A connecting rod, one end of which is fixedly connected to the fixing ring and the other end is placed in the corrugated guide groove.

[0014] Optionally, a first connection disk is provided at the bottom end of the shaft rod, and second connection disks are provided at the top ends of the drill rod and the connecting column. The first connection disk and the second connection disk are fixedly connected by a clamp.

[0015] The technical solution provided by the present invention has the following advantages compared with the prior art: The mixing pile foundation treatment simulation device provided by the present invention is provided with a mixing assembly and a feeding assembly. The feeding assembly transports the material to the hollow area of the shaft rod and the drill rod and sprays it out from the material scattering holes, and cooperates with the movement of the mixing assembly 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, and can realize the operation of different positions in the box body through the left and right movement of the sliding frame relative to the box body, the front and back movement of the sliding plate relative to the sliding frame, and the lifting and lowering of the lifting plate relative to the sliding plate; the device is also provided with a control assembly, and the control assembly includes a numerical control system and a display system. The numerical control system and the display system cooperate to accurately adjust parameters such as rotation speed and mixing depth, so as to simulate the actual engineering situation to the greatest extent, thereby ensuring the referenceability of the indoor results. Description of the Drawings

[0016] The accompanying drawings here are incorporated into the specification and form a part of this specification, showing embodiments in accordance with the present invention, and are used together with the specification to explain the principles of the present invention.

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0018] Figure 1 Schematic diagram of the overall structure of the device representing the stirring state in the embodiments of the present invention; Figure 2 Schematic diagram of the lifting plate and related components in the embodiments of the present invention; Figure 3 Exploded view of the stirring assembly in the embodiments of the present invention; Figure 4 Schematic diagram of the structure of the plate group in the variable diameter state in the embodiments of the present invention; Figure 5 Schematic diagram of the structure of the plate group in the equal diameter state in the embodiments of the present invention; Figure 6 Schematic diagram of the structure of the wedge-shaped blade in the working state in the embodiments of the present invention; Figure 7 Schematic diagram of the structure of the wedge-shaped blade in the retracted state in the embodiments of the present invention; Figure 8 Schematic diagram of the overall structure of the device representing the ramming state in the embodiments of the present invention; Figure 9 Exploded view of the ramming assembly in the embodiments of the present invention.

[0019] In the figure: 1. Box body; 2. Sliding frame; 3. Sliding plate; 4. Lifting plate; 41. Installation cavity; 42. First driving assembly; 421. Screw rod; 422. Gear; 423. First rotary driving part; 424. Tooth disc; 425. Idler gear; 426. Reaction plate; 43. Open box body; 44. Cover body; 5. Shaft rod; 51. Second driving assembly; 511. Second rotary driving part; 512. Flywheel; 513. Transmission belt; 52. First connecting disc; 53. Second connecting disc; 54. Clamp; 6. Stirring assembly; 61. Drill rod; 611. Groove; 62. Drill bit; 621. Scattering hole; 63. Paddle; 64. Movable plate; 641. Accommodation cavity; 642. Wedge-shaped blade; 643. Third driving assembly; 6431. Linear driving part; 6432. First connecting rod; 6433. Second connecting rod; 65. Telescopic rod; 66. Hinge seat; 7. Feeding assembly; 71. Feeding bin; 72. Feeding pipe; 73. Feeding pump; 8. Control assembly; 81. Numerical control system; 82. Display system; 9. Tamping assembly; 91. Guide rail; 92. Installation column; 93. Tamping head; 94. Connecting column; 941. Corrugated guide groove; 95. Fixed ring; 96. Connecting rod. Detailed implementation manners

[0020] In order to be able to more clearly understand the above objects, features and advantages of the present invention, the solution of the present invention will be further described below. It should be noted that, without conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0021] In the description, it should be noted that the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. It should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific situations.

[0022] Many specific details are set forth in the following description in order to fully understand the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] The following combines Figures 1 to 9 to detail the specific embodiments of the present invention.

[0024] This embodiment provides a simulation device for treating a mixing pile foundation, including a box body 1, a sliding frame 2, a sliding plate 3, a lifting plate 4, a shaft rod 5, a mixing component 6, a feeding component 7, and a control component 8.

[0025] Among them, the top of the box body 1 is open.

[0026] Specifically, the shape of the box body 1 is a cuboid, and the mixing component 6 can reach any position of the box body 1 by moving forward and backward, left and right, and up and down. Of course, the box body 1 can be set as a cylindrical shape, a prismatic shape, an irregular shape, or other shapes.

[0027] 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 through a buckle.

[0028] Among them, the sliding frame 2 is installed at the open part of the box body 1 and is driven to slide in the left-right direction.

[0029] 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 rail of the box body 1.

[0030] Specifically, the sliding frame 2 realizes left-right sliding through two groups of rollers cooperating with steel cables. The rollers are connected to the sliding frame 2 through steel cables. During operation, one of the two groups of rollers winds up and the other unwinds, and the two rollers cooperate to drive the sliding frame 2 to move smoothly in the left-right direction. Of course, the left-right movement of the sliding frame 2 can be realized by an electric push rod, a linear motor, or other common linear power components.

[0031] Among them, the sliding plate 3 is installed in the sliding frame 2 and is driven to slide in the front-rear direction.

[0032] 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.

[0033] Specifically, the sliding plate 3 realizes front-rear sliding through two groups of rollers cooperating with steel cables. The rollers are connected to the sliding plate 3 through steel cables. During operation, one of the two groups of rollers winds up and the other unwinds, and the two rollers cooperate to drive the sliding plate 3 to move smoothly in the front-rear direction. Of course, the front-rear movement of the sliding plate 3 can be realized by an electric push rod, a linear motor, or other common linear power components.

[0034] Among them, the lifting plate 4 is installed on the sliding plate 3 and is driven to move up and down.

[0035] Specifically, an installation cavity 41 is provided inside the lifting plate 4. The lifting plate 4 is installed on the sliding plate 3 through a first driving assembly 42 and is driven by the first driving assembly 42. The first driving assembly 42 includes a screw 421, a gear 422, and a first rotary driving member 423. The screw 421 is vertically arranged and fixed on the sliding plate 3. The gear 422 is rotatably installed in the installation cavity 41 and is screwed onto the screw 421. The first rotary driving member 423 is installed in the installation cavity 41 and is in transmission connection with the gear 422. During operation, the first rotary driving member 423 drives the gear 422 to rotate. Since the gear 422 is screwed onto the screw 421, the gear 422 will move up and down along the screw 421 while rotating, thereby driving the lifting plate 4 to lift and lower.

[0036] 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 mouth of the open box body 43. The cover body 44 and the open box body 43 enclose the installation cavity 41, which is more conducive to the installation of the internal structure of the lifting plate 4.

[0037] More specifically, the lifting plate 4 is a rectangular plate. There are four screws 421, which are respectively arranged corresponding to the four corners of the rectangular plate. Each screw 421 is screwed with a gear 422. The first driving assembly 42 further includes a tooth disc 424 and four idler gears 425. The tooth disc 424 and the four idler gears 425 are both rotatably installed in the installation cavity 41. The tooth disc 424 is coaxial with the shaft rod 5, and the shaft rod 5 passes through the tooth disc 424 with a gap. The four idler gears 425 are respectively meshed and connected between the four gears 422 and the tooth disc 424. The first rotary driving member 423 is in transmission connection with the tooth disc 424. During operation, the first rotary driving member 423 drives the tooth disc 424 to rotate. The tooth disc 424 drives the four gears 422 to rotate through the four idler gears 425, thereby realizing the lifting and lowering of the lifting plate 4. The cooperation of the four screws 421 can improve the stability of the movement of the lifting plate 4.

[0038] Furthermore, to ensure the stability of the structure of the four screws 421, in this embodiment, a reaction plate 426 is fixed at the top of the screw 421. Through the reaction plate 426, the four screws 421 form an integral structure, and the stability is greatly improved.

[0039] It should be noted that since the rotation of the tooth disc 424 and the rotation of the shaft rod 5 are two independent movements, the shaft rod 5 needs to pass through the tooth disc 424 with a gap to avoid mutual interference.

[0040] Specifically, the first rotary driving member 423 is a combined structure of a motor and a transmission wheel. The motor is installed in the installation cavity 41, and a transmission wheel is sleeved on the output shaft. The transmission wheel is meshed with the tooth disc 424. When the output shaft of the motor rotates, it drives the tooth disc 424 to rotate through the transmission wheel.

[0041] It should be noted that theoretically, the gear 422 can drive the lifting plate 4 to lift when placed in the installation cavity 41. However, since the gear 422 also needs to rotate, to avoid friction between the gear 422 and the bottom or top of the installation cavity 41, first annular grooves can be opened on the upper and lower end faces of the gear 422, and second annular grooves are correspondingly opened on the top and bottom of the installation cavity 41. A plurality of balls are placed in the first annular grooves and the second annular grooves, so that rolling contact between the gear 422 and the cavity wall of the installation cavity 41 can be achieved, thereby reducing the friction force. Similarly, to reduce the friction force between the gear disk 424 and the cavity wall of the installation cavity 41, the aforementioned ball structures can also be provided on the two end faces of the gear disk 424.

[0042] Among them, the shaft rod 5 vertically penetrates through the lifting plate 4 and is driven to rotate relative to the lifting plate 4. The lower end of the shaft rod 5 penetrates through the sliding plate 3 and the sliding frame 2 and extends into the box body 1.

[0043] It is easy to understand that the shaft rod 5 can rotate relative to the lifting plate 4, but it needs to move synchronously with the lifting plate 4 in the axial direction so as to drive the shaft rod 5 to lift when the lifting plate 4 lifts.

[0044] Specifically, to ensure the rotational stability of the shaft rod 5 relative to the lifting plate 4, a bearing can be installed between the shaft rod 5 and the lifting plate 4, so that the inner ring of the bearing is fixed on the shaft rod 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 rod 5 is lifted synchronously when the lifting plate 4 lifts.

[0045] Specifically, the shaft rod 5 is driven by the second driving assembly 51 to rotate relative to the lifting plate 4. The second driving assembly 51 includes a second rotary driving member 511, a flywheel 512 and a transmission belt 513. The second rotary driving member 511 is installed in the installation cavity 41. The flywheel 512 is fixedly sleeved on the shaft section of the shaft rod 5 located in the installation cavity 41. The transmission belt 513 is wound around the output shaft of the second rotary driving member 511 and the flywheel 512. During operation, the second rotary driving member 511 drives the flywheel 512 to rotate through the transmission belt 513, thereby driving the shaft rod 5 to rotate.

[0046] It is easy to understand that when the lifting plate 4 moves up and down, the second driving assembly 51 moves up and down synchronously with the lifting plate 4, so as to ensure that the axial positions of the second rotary driving member 511, the flywheel 512 and the transmission belt 513 relative to the shaft rod 5 always remain unchanged, thereby ensuring the rotational stability of the shaft rod 5.

[0047] Among them, 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 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 at the bottom end of the drill rod 61, and the paddle 63 is fixed on the outer cylindrical surface of the drill rod 61. During operation, the shaft rod 5 rotates to drive the drill rod 61 to rotate, thereby driving the drill bit 62 and the paddle 63 to rotate.

[0048] Specifically, a plurality of plate groups are arranged on the outer circumferential surface of the drill pipe 61 and are evenly distributed in the circumferential direction. Each plate group includes two movable plates 64 distributed vertically. The plate surface of the movable plate 64 is set as an arc surface so as to be able to fit the drill pipe 61. The two movable plates 64 are hinged together. The inner side of the end of the movable plate 64 close to the other movable plate 64 in the same plate group is connected to the drill pipe 61 through a telescopic rod 65. The two ends of the telescopic rod 65 are respectively hinged to the movable plate 64 and the drill pipe 61. The inner side of the end of the movable plate 64 far from the other movable plate 64 in the same plate group is hinged to the drill pipe 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 pipe 61. A groove 611 for accommodating the telescopic rod 65 and the hinge seat 66 is formed on the outer circumferential surface of the drill pipe 61. 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 an equal diameter state. When in use, the telescopic rod 65 can drive the movable plate 64 to open or close, so that the plate group can be switched between the variable diameter state and the equal diameter state, so that the device can not only meet the construction requirements of a single-section mixing pile, but also meet the construction requirements of a variable-section mixing pile, improving the functionality and flexibility of the device.

[0049] More specifically, an accommodation cavity 641 is provided inside the movable plate 64. Two symmetrically arranged wedge-shaped blades 642 are provided in the accommodation cavity 641. The upper end of the wedge-shaped blade 642 is hinged inside the accommodation cavity 641 and the lower end is connected to a third driving assembly 643. The third driving assembly 643 drives the wedge-shaped blade 642 to rotate so that the wedge-shaped blade 642 has a working state of extending out of the accommodation cavity 641 and a storage state of being stored in the accommodation cavity 641. And when the wedge-shaped blade 642 is in the working state, it is used to make up for the void between adjacent plate groups in the variable diameter state.

[0050] It is easy to understand that when the movable plate 64 opens, due to the outward expansion of the movable plate 64, a void will be formed between adjacent plate groups. Therefore, in this embodiment, wedge-shaped blades 642 are added inside the movable plate 64, which can not only make up for the void between adjacent plate groups when the movable plate 64 opens, but also avoid interfering with the contact of adjacent plate groups when the movable plate 64 closes.

[0051] In terms of details, the third driving component 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 its 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. There are two second connecting rods 6433 which are symmetrically distributed. The upper ends of the second connecting rods 6433 are 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 bottoms of the two wedge-shaped blades 642. During operation, the linear driving member 6431 drives the two second connecting rods 6433 to overlap or form an angle through the first connecting rod 6432, thereby driving the wedge-shaped blades 642 to switch between the working state and the storage state.

[0052] More specifically, the linear driving member 6431 is a hydraulic rod.

[0053] Specifically, the bottom end of the shaft rod 5 is detachably connected to the top end of the drill rod 61, which is convenient for the disassembly and replacement of the stirring component 6.

[0054] More specifically, the bottom end of the shaft rod 5 is provided with a first connection disk 52, and the top end of the drill rod 61 is provided with a second connection disk 53. The first connection disk 52 and the second connection disk 53 are fixedly connected by a clamp 54.

[0055] It is easy to understand that since both the shaft rod 5 and the drill rod 61 rotate during operation, the driving members attached to the drill rod 61, such as the telescopic rod 65, the linear driving member 6431, etc., can achieve rotational electrical contact through a slip ring structure. Specifically, a slip ring can be fixed at the top end of the shaft rod 5, the cable of the driving member is 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 member can be set as a wireless control structure, which all belong to mature technologies in this field and will not be introduced in detail here.

[0056] Among them, the feeding component 7 includes a feeding bin 71, a feeding pipe 72, and a feeding pump 73. Both the shaft rod 5 and the drill rod 61 are hollow structures, and the side wall of the drill bit 62 is evenly distributed with material scattering holes 621 along the axial direction. One end of the feeding pipe 72 is communicated with the feeding bin 71 and the other end is communicated with the top of the hollow area of the shaft rod 5. The feeding pump 73 provides power for the transportation of materials. During use, materials are stored in the feeding bin 71. Under the pressure of the feeding pump 73, the materials are pumped into the hollow area of the shaft rod 5 through the feeding pipe 72, then enter the hollow area of the drill rod 61, and finally are ejected from the material scattering holes 621 of the drill bit 62.

[0057] It should be noted that the feeding bin 71 can store one or at least two mixtures of powder, slurry or gas to meet different types of stirring operations of solids, liquids and gases, so as to be able to more realistically simulate different on-site construction conditions.

[0058] It should be noted that since the shaft rod 5 will translate or move up and down, the feeding pipe 72 needs to be designed as a flexible pipe so as to avoid affecting the movement of the shaft rod 5 while maintaining the connection with the top of the shaft rod 5.

[0059] It should be noted that since the feeding pump 73 has a certain pumping pressure, a cover body needs to be configured at the top of the hollow area of the shaft rod 5, and then the feeding pipe 72 and the cover body can be rotationally sealed. This is easily designed by those skilled in the art and will not be elaborated here.

[0060] 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 actions of the sliding frame 2, the sliding plate 3, the lifting plate 4, the shaft rod 5 and the feeding component 7, and the display system 82 is used to display the working parameters and working states.

[0061] It is easy to understand that a program can be written in the numerical control system 81 to control the automatic actions of each part of the structure according to the program; the display system 82 can visualize the working state and working parameters for the operator to read.

[0062] Furthermore, the mixing pile foundation treatment simulation device of this embodiment is also additionally provided with a ramming component 9. The ramming component 9 is used to replace the mixing component 6 and is installed below the shaft rod 5. The ramming component 9 includes a guide rail 91, a mounting column 92, a ramming 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 vertically arranged. The mounting column 92 is slidably connected to the guide rail 91. The ramming head 93 is fixed at 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 rod 5. A corrugated guide groove 941 is provided on the outer circumferential surface of the connecting column 94. The corrugated guide groove 941 has a plurality of 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 rotation of the shaft rod 5 drives the rotation of the connecting column 94, so that the connecting rod 96, the fixing ring 95 and the mounting column 92 move up and down reciprocally as a whole under the drive of the corrugated guide groove 941, thereby realizing the ramming operation of the ramming head 93, and the frequency of the ramming action of the ramming head 93 can be adjusted by adjusting the rotation speed of the shaft rod 5. The cooperation between the ramming component 9 and the mixing component 6 enables the device to have both ramming and mixing functions, can simulate the on-site construction process to the greatest extent, better carry out different types of test operations, and meet different test requirements.

[0063] Specifically, a first connection disk 52 is provided at the bottom end of the shaft rod 5, and a second connection disk 53 is provided at the top end of the connecting column 94. The first connection disk 52 and the second connection disk 53 are fixedly connected by a clamp 54.

[0064] More specifically, both the first connecting plate 52 and the second connecting plate 53 are provided with notches distributed in a cross shape, and correspondingly, the inner side of the clamp 54 is provided with protrusions distributed in a cross shape. 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 the notches, which is more conducive to ensuring the reliability of the connection.

[0065] The working principle of the mixing pile foundation treatment simulation device of this embodiment is as follows: During the mixing operation, the drill rod 61 is connected below the shaft rod 5, and materials are fed through the feeding assembly 7. The materials pass through the hollow areas of the shaft rod 5 and the drill rod 61 and are ejected from the material scattering holes 621, so as to carry out mixing and reinforcement treatment on the foundation; through the left and right movement of the sliding frame 2 relative to the box body 1, the front and back movement of the sliding plate 3 relative to the sliding frame 2, and the lifting and lowering cooperation of the lifting plate 4 relative to the sliding plate 3, operations at different positions inside the box body 1 can be realized; through the actions of the telescopic rod 65 and the linear driving member 6431, the switching between the equal-diameter state and the variable-diameter state of the movable plate 64 can be completed, so as to adapt to the construction of single-section mixing piles or variable-section mixing piles; During the ramming operation, the mixing assembly 6 is disassembled, and the connecting column 94 is connected below the shaft rod 5. The rotation of the shaft rod 5 drives the rammer head 93 to reciprocate up and down, playing a role in ramming; through the left and right movement of the sliding frame 2 relative to the box body 1, the front and back movement of the sliding plate 3 relative to the sliding frame 2, and the lifting and lowering cooperation of the lifting plate 4 relative to the sliding plate 3, operations at different positions inside the box body 1 can be realized.

[0066] The above are only specific implementation manners of the present invention, enabling those skilled in the art to understand or implement the present invention. Although detailed descriptions have been made with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments, and they should all be covered by the protection scope of the claims.

Claims

1. A mixing pile foundation treatment simulation device, characterized in that Comprising: A box body (1) with an open top; A sliding frame (2) installed at the open mouth of the box body (1) and driven to slide in the left - right direction; A sliding plate (3) installed inside the sliding frame (2) and driven to slide in the front - back direction; A lifting plate (4) installed on the sliding plate (3) and driven to move up and down; A shaft rod (5) vertically penetrating through the lifting plate (4) and driven to rotate relative to the lifting plate (4), the lower end of the shaft rod (5) penetrating through the sliding plate (3) and the sliding frame (2) and extending into the box body (1); A stirring assembly (6) including a drill rod (61), a drill bit (62) and a paddle (63), the drill rod (61) being coaxially arranged with the shaft rod (5) and the top end of the drill rod (61) being fixedly connected to the bottom end of the shaft rod (5), the drill bit (62) being fixed to the bottom end of the drill rod (61), and the paddle (63) being fixed to the outer cylindrical surface of the drill rod (61); A feeding assembly (7) including a feeding bin (71), a feeding pipe (72) and a feeding pump (73), both the shaft rod (5) and the drill rod (61) being of hollow structure, and evenly distributed in the axial direction on the side wall of the drill bit (62) with material - scattering holes (621), one end of the feeding pipe (72) being communicated with the feeding bin (71) and the other end being communicated with the top of the hollow area of the shaft rod (5), the feeding pump (73) providing power for the conveying of materials; A control assembly (8) including a numerical control system (81) and a display system (82), the numerical control system (81) being used to control the actions of the sliding frame (2), the sliding plate (3), the lifting plate (4), the shaft rod (5) and the feeding assembly (7), and the display system (82) being used to display working parameters and working states.

2. The mixing pile foundation treatment simulation device according to claim 1, wherein, An installation cavity (41) is provided inside the lifting plate (4), the lifting plate (4) is installed on the sliding plate (3) through a first driving assembly (42) and driven by the first driving assembly (42), and the first driving assembly (42) includes: A screw rod (421) vertically arranged and fixed on the sliding plate (3); A gear (422) rotatably installed in the installation cavity (41) and screwed onto the screw rod (421); A first rotary driving member (423) installed in the installation cavity (41) and drivingly 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 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) further includes a toothed disc (424) and four idle gears (425), the toothed disc (424) and the four idle gears (425) are all rotatably installed in the installation cavity (41), the toothed disc (424) is coaxial with the shaft rod (5) and the shaft rod (5) penetrates through the toothed disc (424) with a clearance, the four idle gears (425) are respectively meshingly connected between the four gears (422) and the toothed disc (424), and the first rotary driving member (423) is drivingly connected to the toothed disc (424).

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

5. The mixing pile foundation treatment simulation device according to claim 1, wherein A plurality of plate groups are circumferentially and evenly arranged on the outer circumferential surface of the drill rod (61). Each plate group includes two movable plates (64) distributed up and down. The plate surface of the movable plate (64) is set as an arc surface to be able to fit the drill rod (61). The two movable plates (64) are hinged together. The inner side of the end of the movable plate (64) close to the other movable plate (64) in the same plate group is connected to the drill rod (61) through a telescopic rod (65). 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) far from the other movable plate (64) in 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). A groove (611) for accommodating the telescopic rod (65) and the hinge seat (66) is formed on the outer circumferential surface of the drill rod (61). 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 an equal diameter state.

6. The simulated device for mixing pile foundation treatment according to claim 5, wherein, An accommodation cavity (641) is arranged inside the movable plate (64). Two symmetrically arranged wedge-shaped blades (642) are arranged in the accommodation cavity (641). The upper end of the wedge-shaped blade (642) is hinged in the accommodation cavity (641) and the lower end is connected to a third driving assembly (643). The third driving assembly (643) drives the wedge-shaped blade (642) to rotate so that the wedge-shaped blade (642) has a working state extending out of the accommodation cavity (641) and a storage state stored in the accommodation cavity (641). And when the wedge-shaped blade (642) is in the working state, it is used to make up for the void area between adjacent plate groups in the variable diameter state.

7. The mixing pile foundation treatment simulation device according to claim 6, characterized in that, The third driving assembly (643) includes: A linear driving member (6431) installed in the accommodation cavity (641) and with its output shaft facing downwards; A first connecting rod (6432) with its upper end hinged to the output shaft of the linear driving member (6431); Two second connecting rods (6433) which are symmetrically distributed. The upper ends of the second connecting rods (6433) are hinged to the lower end of the first connecting rod (6432). The lower ends of the two second connecting rods (6433) are respectively hinged to the bottoms of the two wedge-shaped blades (642).

8. The mixing pile foundation treatment simulation device according to any one of claims 1 to 7, characterized in that The bottom end of the shaft rod (5) is detachably connected to the top end of the drill rod (61).

9. The mixing pile foundation treatment simulation device according to claim 8, characterized in that, It further includes a ramming assembly (9). The ramming assembly (9) is used to replace the stirring assembly (6) and is installed below the shaft rod (5). The ramming assembly (9) includes: A guide rail (91) for detachably fixing on the sliding plate (3) and vertically arranged; A mounting post (92) slidably connected to the guide rail (91); A ramming head (93) fixed to the bottom end of the mounting post (92); A connecting post (94) for detachably connecting to the bottom end of the shaft rod (5). A corrugated guide groove (941) is provided on the outer circumferential surface of the connecting post (94). 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) having one end fixedly connected to the fixing ring (95) and the other end placed in the corrugated guide groove (941).

10. The mixing pile foundation treatment simulation device according to claim 9, characterized in that, A first connecting disc (52) is provided at the bottom end of the shaft rod (5). Second connecting discs (53) are provided at the top ends of the drill rod (61) and the connecting post (94). The first connecting disc (52) and the second connecting discs (53) are fixedly connected by a clamp (54).

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