Sand box physical simulation experiment device for simulating any displacement vector

Abstract

The invention belongs to the technical field of structural geology research, and particularly relates to a sand box physical simulation experiment device for simulating any displacement vector, a horizontal static plate is arranged at the top end of a rack, a rotating shaft is rotatably connected to the right side of the top end of the rack through a bearing, and the rotating shaft is fixedly sleeved with the upper end of an angle-variable inclined plate; the rotating shaft is further fixedly sleeved with a positioning disc, and the positioning disc is arranged to be in a fan shape. The angle between the horizontal sliding plate and the variable-angle inclined plate is adjusted through the positioning disc, and the pre-stored fault at any angle can be simulated, so that manufacturing and replacement of a plurality of pre-stored structure models are avoided, on one hand, the cost is saved, and on the other hand, the experiment is simpler and easier to operate. In the experiment process, the movement of any displacement vector of the pre-stored structure is simulated, and the displacement in the X direction and the Y direction can be adjusted at any time in the experiment process, so that the structure evolution process of the geological prototype in the historical period can be more accurately restored.

Description

Technical Field

[0001] The present invention relates to the technical field of structural geology research, and particularly to a sandbox physical simulation experimental device for simulating arbitrary displacement vectors. Background Art

[0002] Oblique extensional / squeezing deformation with the regional extensional / squeezing direction obliquely intersecting the pre-existing structure is a common phenomenon in the formation and evolution process of multi-stage rift / foreland basins. Since the extensional / squeezing direction is not orthogonal to the strike of the pre-existing structure, there are significant differences in the development of faults. The faults have both dip-slip displacement and strike-slip displacement at the same time. The dip-slip displacement makes the deformation manifested as controlling sedimentary characteristics, and the strike-slip displacement makes the deformation manifested as a composite fault pattern composed of en echelon fault systems. And the decomposition of different displacement vectors into different magnitudes of dip-slip components and strike-slip components results in an extremely complex combination pattern of newly generated and reactivated faults, leading to the formation of complex fault zones of different genetic types in different structural units of the same basin.

[0003] As a general technical means for basin tectonic analysis, the sandbox physical simulation technology is also widely used in the research of fault formation and evolution. Although the sandbox physical simulation experiment provides great guidance for simulating the orthogonal extensional deformation process, the oblique extensional / squeezing deformation is a complex deformation process, which is the result of the combined action of multiple parameters including displacement vectors (including displacement magnitude and direction), boundary conditions, viscosity, etc. The experimental devices currently used to study the reactivation and formation evolution of pre-existing faults still have certain defects and cannot simulate the influence of the change of arbitrary displacement vectors on the reactivation deformation of pre-existing faults with arbitrary attitudes. Therefore, the law of the reactivation deformation of pre-existing faults under oblique extensional / squeezing action cannot be systematically studied at present. Summary of the Invention

[0004] The purpose of the present invention is to provide a sandbox physical simulation experimental device for simulating arbitrary displacement vectors, so as to solve the problem that the current physical simulation experiment cannot simulate the influence of the change of arbitrary displacement vectors on the reactivation deformation of pre-existing faults with arbitrary attitudes as proposed in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A sandbox physical simulation experimental device for simulating arbitrary displacement vectors, comprising:

[0006] A frame, a horizontal static plate is arranged at the top of the frame, and a rotating shaft is rotatably connected to the right side of the top of the frame through a bearing;

[0007] A variable-angle inclined plate, the upper end of the variable-angle inclined plate is fixedly sleeved on the rotating shaft, and a positioning disk is also fixedly sleeved on the rotating shaft. The positioning disk is set in a fan shape, the center of the circle where the positioning disk is located intersects with the axis of the rotating shaft, and an arc-shaped angle scale is arranged on the lower side of the outer wall of the positioning disk;

[0008] A locking mechanism, which is arranged on the frame and is connected between the lower side of the outer wall of the positioning disc;

[0009] A connecting plate, the upper end of which is fixedly connected to the lower left side wall of the variable-angle inclined plate, the lower side of the outer wall of the connecting plate is fixedly connected to the positioning disc, the right side wall of the connecting plate is provided with an X-axis servo driving mechanism, a moving substrate is connected to the X-axis servo driving mechanism, a Y-axis servo driving mechanism is connected to the moving substrate, a moving slide plate is installed on the right side of the Y-axis servo driving mechanism, the upper side of the moving slide plate is rotationally connected to a horizontal slide plate support through a support shaft, a horizontal slide plate is embedded in the upper surface of the horizontal slide plate support, and a telescopic driving mechanism is connected between the lower surface right side of the horizontal slide plate support and the lower right side wall of the moving slide plate. The telescopic driving mechanism is rotationally connected to the horizontal slide plate support and the moving slide plate by shafts.

[0010] Preferably, the frame includes side frames on the front and rear sides, rollers are arranged on both sides of the bottom of the side frames, the upper left side between the two side frames is connected by a strengthening connecting rod, a support frame is arranged on the upper surface of the strengthening connecting rod, the horizontal static plate is embedded in the support frame, and the right end of the horizontal static plate extends to the right side of the support frame.

[0011] Preferably, an installation plate is arranged on the frame, and the locking mechanism is arranged on the installation plate.

[0012] Preferably, the locking mechanism includes a positioning pin inserted on the installation plate and positioning holes uniformly opened on the positioning disc. The positioning pin and the positioning holes are in corresponding positions and have matching sizes.

[0013] Preferably, the locking mechanism includes a driving motor installed on the installation plate, a driving lead screw is connected to the output shaft of the driving motor, a supporting top pipe is threadedly connected to the outer wall of the driving lead screw, slide rods are installed in parallel on the outer wall of the supporting top pipe, a support rod is fixedly installed on the outer wall of the driving motor, and a sliding block is connected to the end of the support rod away from the driving motor. The sliding block is slidably clamped on the outer wall of the slide rod.

[0014] Preferably, a friction block is arranged at the end of the supporting top pipe away from the driving lead screw, and a friction strip corresponding to the position of the friction block is arranged on the outer wall of the positioning disc.

[0015] Preferably, a supporting slide bar is arranged on the side wall of the moving substrate facing the connecting plate, and the supporting slide bar slidably supports on the outer wall of the connecting plate.

[0016] Preferably, a strengthening connecting plate is arranged on the lower surface of the horizontal slide plate support, and the strengthening connecting plate is fixedly connected to the horizontal slide plate by screws.

[0017] Preferably, the X-axis servo drive mechanism and the Y-axis servo drive mechanism have the same structure. The X-axis servo drive mechanism and the Y-axis servo drive mechanism both include a drive screw. A saddle is sleeved on the outer wall of the drive screw. The saddle is in threaded fit with the drive screw through threads. One end of the drive screw is connected to the output end of a reduction drive motor.

[0018] Preferably, the length and width of the horizontal static plate are 110 cm and 30 cm respectively, the length and width of the horizontal sliding plate are 90 cm and 30 cm respectively, the length and width of the variable-angle inclined plate are 110 cm and 30 cm respectively, and the length and width of the moving sliding plate are 90 cm and 90 cm respectively.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] This experimental device is easy to operate and simple. By adjusting the angle between the horizontal sliding plate and the variable-angle inclined plate through the positioning disk, it is possible to simulate pre-existing faults at any angle, thus avoiding the production and replacement of multiple pre-existing structure models. On the one hand, it saves costs, and on the other hand, it makes the experiment more simple and easy to operate.

[0021] Since an X-axis servo drive mechanism is provided under the moving substrate, it realizes the driving of the pre-existing structure to generate a sliding displacement in the X direction. A parallel Y-axis servo drive mechanism is provided under the moving sliding plate. On the one hand, it makes the sliding of the moving sliding plate more stable, and on the other hand, it realizes the driving of the pre-existing structure to generate a sliding displacement in the Y direction. Under the control of a computer, it is possible to simulate the movement of the pre-existing structure with any displacement vector during the experiment, and the displacement sizes in the X and Y directions can be adjusted at any time during the experiment, so as to more accurately restore the structural evolution process of the geological prototype in the historical period. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the present invention;

[0023] Figure 2 is the present invention Figure 1 is a schematic structural diagram of the present invention removing the moving sliding plate, the horizontal sliding plate support plate, the horizontal sliding plate, the strengthening connecting plate, and the telescopic drive mechanism;

[0024] Figure 3 is a schematic structural diagram of the X-axis servo drive mechanism of the present invention;

[0025] Figure 4 is a schematic structural diagram of the horizontal static plate, the rotating shaft, the positioning disk, the arc angle scale, and the mounting plate of the present invention;

[0026] Figure 5 is a schematic structural diagram of the side frame, the strengthening connecting rod, the roller, and the support frame of the present invention;

[0027] Figure 6 It is a schematic structural diagram of the side frame and the reinforcing connecting rod of the present invention;

[0028] Figure 7 It is a schematic structural diagram of the driving lead screw, the supporting pipe, the friction block, the sliding rod, the supporting rod, and the sliding block of the present invention.

[0029] In the figure: 1. Side frame; 2. Reinforcing connecting rod; 3. Roller; 4. Supporting frame; 5. Horizontal static plate; 6. Rotating shaft; 7. Positioning disk; 8. Arc angle scale; 9. Mounting plate; 10. Driving motor; 11. Driving lead screw; 12. Supporting pipe; 13. Friction block; 14. Sliding rod; 15. Supporting rod; 16. Sliding block; 17. Variable angle inclined plate; 18. Connecting plate; 19. Moving substrate; 20. X-axis servo drive mechanism; 201. Driving screw; 202. Saddle; 203. Reduction drive motor; 21. Supporting slide bar; 22. Y-axis servo drive mechanism; 23. Moving slide plate; 24. Horizontal slide plate support plate; 25. Horizontal slide plate; 26. Reinforcing connecting plate; 27. Telescopic drive mechanism. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0032] Embodiment 1:

[0033] Please refer to Figure 1-7 , the present invention provides a technical solution: a sand box physical simulation experiment device for simulating any displacement vector, including: a frame, a variable angle inclined plate 17, a locking mechanism, and a connecting plate 18;

[0034] A horizontal static plate 5 is provided at the top of the frame. The right side of the top of the frame is rotatably connected to a rotating shaft 6 through a bearing. The upper end of the variable-angle inclined plate 17 is fixedly sleeved on the rotating shaft 6. A positioning disk 7 is also fixedly sleeved on the rotating shaft 6. The positioning disk 7 is fan-shaped. The center of the circle where the positioning disk 7 is located intersects with the axis of the rotating shaft 6. An arc-shaped angle scale 8 is provided on the lower side of the outer wall of the positioning disk 7. The locking mechanism is arranged on the frame and is connected between the lower side of the outer wall of the positioning disk 7. The upper end of the connecting plate 18 is fixedly connected to the lower left side wall of the variable-angle inclined plate 17. The lower side of the outer wall of the connecting plate 18 is fixedly connected to the positioning disk 7. An X-axis servo drive mechanism 20 is arranged on the right side wall of the connecting plate 18. A moving substrate 19 is connected to the X-axis servo drive mechanism 20. A Y-axis servo drive mechanism 22 is connected to the moving substrate 19. A moving slide plate 23 is installed on the right side of the Y-axis servo drive mechanism 22. The upper side of the moving slide plate 23 is rotatably connected to a horizontal slide plate support plate 24 through a support shaft. A horizontal slide plate 25 is embedded in the upper surface of the horizontal slide plate support plate 24. A telescopic drive mechanism 27 is connected between the lower right side wall of the lower surface of the horizontal slide plate support plate 24 and the moving slide plate 23. The telescopic drive mechanism 27 is rotatably connected to the horizontal slide plate support plate 24 and the moving slide plate 23 by shafts. Two Y-axis servo drive mechanisms 22 are set. The two Y-axis servo drive mechanisms 22 are set in parallel side by side. The length and width of the horizontal static plate 5 are 110 cm and 30 cm respectively. The length and width of the horizontal slide plate 25 are 90 cm and 30 cm respectively. The length and width of the variable-angle inclined plate 17 are 110 cm and 30 cm respectively. The length and width of the moving slide plate 23 are 90 cm and 90 cm respectively.

[0035] Analysis of the above content: The connection between the horizontal static plate 5 and the variable-angle inclined plate 17 has a smooth transition. During use, the left end of the horizontal slide plate 25 is in contact with the right side wall of the variable-angle inclined plate 17. The frame supports the overall upper structure. The horizontal static plate 5 remains horizontally fixed. The variable-angle inclined plate 17 can rotate around the rotating shaft 6, and the variable-angle inclined plate 17 can drive the positioning disk 7 to rotate synchronously. The angle change of the variable-angle inclined plate 17 can be obtained through the angle change of the arc-shaped angle scale 8 on the positioning disk 7. After adjustment, the positioning disk 7 is locked by the locking mechanism, thereby determining the dip angle of the fault plane of the pre-existing structure of the base. The horizontal static plate 5, the horizontal slide plate 25, the variable-angle inclined plate 17, and the moving slide plate 23 are all made of acrylic plates.

[0036] The telescopic drive mechanism 27 can adopt a linear motor, a cylinder or a hydraulic cylinder, and is equipped with corresponding power sources, gas sources or hydraulic oils and other corresponding supporting systems. The telescopic end of the telescopic drive mechanism 27 expands and contracts to adjust the horizontal slide plate support plate 24 and the horizontal slide plate 25, so that the horizontal slide plate support plate 24 and the horizontal slide plate 25 are adjusted to be horizontal.

[0037] The corresponding experimental material layers are laid on the horizontal static plate 5, the horizontal sliding plate 25, and the variable-angle inclined plate 17 for simulation experiments. The X-axis servo drive mechanism 20 can drive the moving substrate 19, the moving sliding plate 23, and the horizontal sliding plate 25 to move in the X direction, and the Y-axis servo drive mechanism 22 drives the moving sliding plate 23 and the horizontal sliding plate 25 to move in the Y direction. The X-axis servo drive mechanism 20 and the Y-axis servo drive mechanism 22 are controlled based on the upper computer. By controlling the upper computer to control the moving distance and speed in the X and Y directions, the laid experimental material layer is observed after the experiment.

[0038] Example Two:

[0039] Please refer to Figure 1-7 , the present invention provides a technical solution based on Example One: The frame includes side frames 1 located on the front and rear sides. Both sides of the bottom of the side frame 1 are provided with rollers 3. The upper left side between the two side frames 1 is connected by a strengthening link 2. The upper surface of the strengthening link 2 is provided with a support frame 4. The horizontal static plate 5 is embedded in the support frame 4, and the right end of the horizontal static plate 5 extends to the right side of the support frame 4.

[0040] Analysis of the above content: Through the setting of the rollers 3, it is convenient to move the entire frame. The left sides of the horizontal static plate 5 and the support frame 4 are located on the strengthening link 2, and the right sides extend to the right.

[0041] Example Three (the first locking mechanism):

[0042] Please refer to Figure 1-7 , the present invention provides a technical solution based on Example One: An installation plate 9 is provided on the frame, and the locking mechanism is arranged on the installation plate 9. The locking mechanism includes a positioning pin (not shown in the figure) inserted into the installation plate 9 and positioning holes (not shown in the figure) uniformly opened on the positioning disk 7. The positions of the positioning pin and the positioning holes correspond and their sizes are adapted.

[0043] Analysis of the above content: When the angle needs to be adjusted, pull out the positioning pin from the current positioning hole so that the positioning disk 7 can rotate. After rotating to a certain angle, insert the positioning pin into the corresponding positioning hole after rotation to lock the positioning disk 7.

[0044] Example Four (the second locking mechanism):

[0045] Please refer to Figure 1-7, the present invention provides a technical solution based on Embodiment 1: An installation plate 9 is provided on the frame, and the locking mechanism is provided on the installation plate 9. The locking mechanism includes a driving motor 10 installed on the installation plate 9. A driving lead screw 11 is connected to the output shaft of the driving motor 10. A support top pipe 12 is threadedly connected to the outer wall of the driving lead screw 11. A slide bar 14 is installed in parallel on the outer wall of the support top pipe 12. A support rod 15 is fixedly installed on the outer wall of the driving motor 10. One end of the support rod 15 away from the driving motor 10 is connected to a sliding block 16, and the sliding block 16 is slidably clamped on the outer wall of the slide bar 14. One end of the support top pipe 12 away from the driving lead screw 11 is provided with a friction block 13, and a friction strip (not shown in the figure) corresponding to the position of the friction block 13 is provided on the outer wall of the positioning disk 7.

[0046] Analysis of the above content: When it is necessary to lock the positioning disk 7, the output shaft of the driving motor 10 drives the driving lead screw 11 to rotate. The driving lead screw 11 is in threaded cooperation with the support top pipe 12, and is restricted by the slide bar 14, the support rod 15, and the sliding block 16. The support top pipe 12 moves axially on the driving lead screw 11 and cannot rotate, so that the support top pipe 12 drives the friction block 13 to approach the positioning disk 7. Under the action of contact friction, the positioning disk 7 cannot rotate by itself, realizing the locking function of the positioning disk 7.

[0047] Embodiment Five:

[0048] Please refer to Figure 1-7 , the present invention provides a technical solution based on Embodiment 1: A support slide bar 21 is provided on one side wall of the moving substrate 19 facing the connecting plate 18, and the support slide bar 21 is slidably supported on the outer wall of the connecting plate 18.

[0049] Analysis of the above content: The support slide bar 21 is supported on the connecting plate 18 to prevent the moving substrate 19 from shaking under the drive of the X-axis servo drive mechanism 20.

[0050] Embodiment Six:

[0051] Please refer to Figure 1-7 , the present invention provides a technical solution based on Embodiment 1: A reinforcing connecting plate 26 is provided on the lower surface of the horizontal slide plate support 24, and the reinforcing connecting plate 26 is fixedly connected to the horizontal slide plate 25 by screws.

[0052] Analysis of the above content: The setting of the reinforcing connecting plate 26 strengthens the support for the horizontal slide plate support 24 and the horizontal slide plate 25 to prevent the horizontal slide plate support 24 and the horizontal slide plate 25 from deforming.

[0053] Embodiment Seven:

[0054] Please refer to Figure 1-7, the present invention provides a technical solution based on Embodiment 1: The X-axis servo drive mechanism 20 and the Y-axis servo drive mechanism 22 have the same structure. The X-axis servo drive mechanism 20 and the Y-axis servo drive mechanism 22 both include a drive screw 201. A saddle 202 is sleeved on the outer wall of the drive screw 201. The saddle 202 is in threaded fit with the drive screw 201 through threads. One end of the drive screw 201 is connected to the output end of a reduction drive motor 203.

[0055] Analysis of the above content: The saddle 202 of the X-axis servo drive mechanism 20 is connected to the lower surface of the moving substrate 19. The saddle 202 of the Y-axis servo drive mechanism 22 is connected to the lower surface of the moving slide plate 23. The drive screw 201 is driven to rotate by the reduction drive motor 203. The drive screw 201 is in threaded fit with the saddle 202, so that the saddle 202 moves on the drive screw 201.

[0056] The foregoing shows and describes the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0057] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sandbox physical simulation experimental device for simulating an arbitrary displacement vector, characterized in that, Including: A frame, at the top of which a horizontal static plate (5) is provided, and a rotating shaft (6) is rotatably connected to the right side of the top of the frame through a bearing; A variable-angle inclined plate (17), the upper end of which is fixedly sleeved on the rotating shaft (6), and a positioning disk (7) is also fixedly sleeved on the rotating shaft (6). The positioning disk (7) is in a fan shape, the center of the circle where the positioning disk (7) is located intersects with the axis of the rotating shaft (6), and an arc-shaped angle scale (8) is arranged on the lower side of the outer wall of the positioning disk (7); A locking mechanism, which is arranged on the frame and is connected between the lower side of the outer wall of the positioning disk (7); A connecting plate (18), the upper end of which is fixedly connected to the lower left side wall of the variable-angle inclined plate (17). The lower side of the outer wall of the connecting plate (18) is fixedly connected to the positioning disk (7). An X-axis servo driving mechanism (20) is arranged on the right side wall of the connecting plate (18). A moving substrate (19) is connected to the X-axis servo driving mechanism (20). A Y-axis servo driving mechanism (22) is connected to the moving substrate (19). A moving slide plate (23) is installed on the right side of the Y-axis servo driving mechanism (22). A horizontal slide plate support plate (24) is rotatably connected to the upper side of the moving slide plate (23) through a support shaft. A horizontal slide plate (25) is embedded in the upper surface of the horizontal slide plate support plate (24). A telescopic driving mechanism (27) is connected between the lower right side wall of the moving slide plate (23) and the lower surface of the right side of the horizontal slide plate support plate (24). The telescopic driving mechanism (27) is rotatably connected to the horizontal slide plate support plate (24) and the moving slide plate (23) by shafts.

2. The physical simulation experimental device for a sand box that simulates an arbitrary displacement vector according to claim 1, characterized in that: The frame includes side frames (1) on the front and rear sides. Rollers (3) are arranged on both sides of the bottom of the side frames (1). The upper left side between the two side frames (1) is connected by a reinforcing link (2). A support frame (4) is arranged on the upper surface of the reinforcing link (2). The horizontal static plate (5) is embedded in the support frame (4), and the right end of the horizontal static plate (5) extends to the right side of the support frame (4).

3. The physical simulation experimental device for a sand box that simulates an arbitrary displacement vector according to claim 1, characterized in that: An installation plate (9) is arranged on the frame, and the locking mechanism is arranged on the installation plate (9).

4. A physical simulation experimental device for a sand box simulating an arbitrary displacement vector according to claim 3, characterized in that: The locking mechanism includes a positioning pin inserted into the installation plate (9) and positioning holes uniformly arranged on the positioning disk (7). The positioning pin and the positioning holes are in corresponding positions and have matching sizes.

5. A physical simulation experimental device for a sand box that simulates an arbitrary displacement vector according to claim 3, characterized in that: The locking mechanism includes a driving motor (10) installed on the installation plate (9). A driving lead screw (11) is connected to the output shaft of the driving motor (10). A support top pipe (12) is threadedly connected to the outer wall of the driving lead screw (11). A slide bar (14) is installed in parallel on the outer wall of the support top pipe (12). A support rod (15) is fixedly installed on the outer wall of the driving motor (10). One end of the support rod (15) away from the driving motor (10) is connected to a sliding block (16), and the sliding block (16) is slidably clamped on the outer wall of the slide bar (14).

6. The physical simulation experimental device for a sand box simulating an arbitrary displacement vector according to claim 5, characterized in that: One end of the supporting pipe jacking (12) away from the driving lead screw (11) is provided with a friction block (13), and a friction strip corresponding to the position of the friction block (13) is arranged on the outer wall of the positioning disc (7).

7. The physical simulation experimental device for a sand box that simulates an arbitrary displacement vector according to claim 1, characterized in that: One side wall of the moving substrate (19) facing the connecting plate (18) is provided with a supporting slide bar (21), and the supporting slide bar (21) is slidably supported on the outer wall of the connecting plate (18).

8. A physical simulation experimental device for a sand box that simulates an arbitrary displacement vector according to claim 1, characterized in that: The lower surface of the horizontal slide plate support plate (24) is provided with a reinforcing connecting plate (26), and the reinforcing connecting plate (26) is fixedly connected with the horizontal slide plate (25) by screws.

9. The physical simulation experimental device for sand box to simulate any displacement vector according to claim 1, characterized in that: The X-axis servo drive mechanism (20) and the Y-axis servo drive mechanism (22) have the same structure. The X-axis servo drive mechanism (20) and the Y-axis servo drive mechanism (22) both include a driving screw (201), a saddle (202) is sleeved on the outer wall of the driving screw (201), the saddle (202) is in threaded fit with the driving screw (201) through threads, and one end of the driving screw (201) is connected with the output end of a reduction drive motor (203).

10. A physical simulation experimental device for a sand box simulating an arbitrary displacement vector according to claim 1, characterized in that: The length and width of the horizontal static plate (5) are 110 cm and 30 cm respectively, the length and width of the horizontal slide plate (25) are 90 cm and 30 cm respectively, the length and width of the variable-angle inclined plate (17) are 110 cm and 30 cm respectively, and the length and width of the moving slide plate (23) are 90 cm and 90 cm respectively.

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