Roadway crossing fault grouting reinforcement simulation device

By designing a simulation device for grouting reinforcement of roadways across faults, and using an adjustable grouting reinforcement simulation mechanism to simulate faults with different inclination angles, the economic waste and stability problems in grouting reinforcement of roadways across faults were solved, and the safety and reinforcement effect were improved.

CN117418845BActive Publication Date: 2026-07-24CHINA UNIV OF MINING & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA UNIV OF MINING & TECH
Filing Date
2023-10-24
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing technologies for grouting reinforcement of roadways across faults suffer from problems such as economic waste, difficulty in controlling the degree of grout penetration and diffusion range, uneven distribution of grouting reinforcement stability, and poor cementation and solidification of coal and faults.

Method used

A tunnel fault grouting and reinforcement simulation device is designed, including an adjustable grouting and reinforcement simulation mechanism. Through the combination of a grouting forming part, an angle adjustment part, first and second driving parts and a sealing part, grouting and reinforcement simulation of faults with different tilt angles can be realized.

Benefits of technology

It improves the targeting and safety of grouting reinforcement, reduces economic waste, and enhances the safety of grouting and the effect of fault reinforcement during coal mine mining and tunneling.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application belongs to the technical field of mine safety, and particularly relates to a roadway through fault grouting reinforcement simulation device, which comprises a shell, a top cover detachably connected to the top end of the shell, an adjustable grouting reinforcement simulation mechanism arranged inside the shell, a grouting opening formed in the top cover, and the top end of the adjustable grouting reinforcement simulation mechanism detachably communicated with the grouting opening; the adjustable grouting reinforcement simulation mechanism comprises a grouting forming part, the top end of the grouting forming part detachably communicated with the grouting opening, an angle adjusting part fixedly connected to the top end and the bottom end of the grouting forming part respectively, the angle adjusting part located at the top detachably connected to the bottom end of the top cover, the angle adjusting part located at the bottom fixedly connected to the inner bottom wall of the shell, a first driving part vertically arranged in the center of the grouting forming part, and a first center blocking part and a second center blocking part movably arranged on the first driving part, the present application simulates the through fault grouting reinforcement through the test device, thereby ensuring the safety degree of the actual production process and reducing the economic waste.
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Description

Technical Field

[0001] This invention belongs to the field of mine safety technology, and in particular relates to a simulation device for grouting reinforcement of roadways across faults. Background Technology

[0002] Various sudden disasters during coal mining are closely related to geological structures, such as water hazards, gas disasters, roof collapses, and rock bursts. These disasters frequently occur when roadways pass through faults. Influenced by the combined effects of mining stress and ground stress, fault activation manifests as numerous fractures in the fractured zone, easy deformation, and high water permeability. This easily drives roof fracture and coal wall spalling, resulting in weak stability and poor integrity of roadways passing through faults. Currently, the main method is to ensure the safe passage of roadways through faults and reduce disaster risks through pre-grouting reinforcement. High-density drilling and injection of high-strength grout are typically used to enhance the bonding and friction between the fault fractured zone and the coal body, improving fault stability under mining stress. While high-density drilling and high-strength grout injection can ensure the safe passage of roadways through faults, it often results in economic waste, difficulty in controlling the grout penetration and diffusion range, uneven distribution of grouting reinforcement stability, and large differences in the degree of cementation and solidification between the coal body and the fault.

[0003] Therefore, it is necessary to design a simulation device for grouting reinforcement of roadways across faults to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a simulation device for grouting reinforcement of roadways across faults, so as to solve the above-mentioned problems. It can simulate grouting reinforcement of roadways across faults through the test device, improve the pertinence of grouting schemes for roadways across faults, enhance the grouting safety and fault reinforcement effect in the coal mine mining and tunneling process, and at the same time reduce economic costs.

[0005] To achieve the above objectives, the present invention provides the following solution: a tunnel fault grouting reinforcement simulation device, comprising an outer shell, a top cover detachably connected to the top of the outer shell, an adjustable grouting reinforcement simulation mechanism disposed inside the outer shell, a grouting port being provided on the top cover, and the top of the adjustable grouting reinforcement simulation mechanism being detachably connected to the grouting port.

[0006] The adjustable grouting reinforcement simulation mechanism includes a grouting forming part. The top end of the grouting forming part is detachably connected to the grouting port. Angle adjusting parts are fixedly connected to the top and bottom ends of the grouting forming part, respectively. The upper angle adjusting part is detachably connected to the bottom end of the top cover, and the lower angle adjusting part is fixedly connected to the inner bottom wall of the outer shell. A first driving part is vertically inserted through the center of the grouting forming part. A first central sealing part and a second central sealing part are movably inserted through the first driving part. Both the first and second central sealing parts are adapted to the center of the grouting forming part. Second driving parts are symmetrically arranged on both sides of the grouting forming part. A first side sealing part and a second side sealing part are movably inserted through the second driving part. Both the first and second side sealing parts are adapted to the sides of the grouting forming part. The first side sealing part corresponds to the first central sealing part, and the second side sealing part corresponds to the second central sealing part.

[0007] Preferably, the grouting forming part includes a sealing top plate, with sealing side plates hinged to the two long sides of the sealing top plate. A through hole is opened in the center of the sealing side plate. Two triangular grooves are opened on the side walls of the two sealing side plates that are far apart from each other. The two triangular grooves are located at the top and bottom of the through hole, respectively. The first central sealing part and the second central sealing part are adapted to the through hole. A sealing bottom plate is hinged to the bottom of the two sealing side plates. A grouting hole and several vent holes are opened in the middle of the sealing side plate. The several vent holes are symmetrically arranged on both sides of the grouting hole. The bottom end of the grouting hole is fixedly connected to the grouting hose. The top end of the grouting hose is detachably connected to the grouting port. The bottom end of the upper angle adjustment part is fixedly connected to the top end of the sealing side plate. The top end of the lower angle adjustment part is fixedly connected to the bottom end of the sealing bottom plate.

[0008] Preferably, the first drive unit includes a first motor, which is fixedly connected to the inner wall of the housing. The output shaft of the first motor is fixedly connected to one end of a horizontally arranged first lead screw, and the other end of the first lead screw is rotatably connected to another inner wall of the housing. The first lead screw is parallel to and spaced apart by first guide rods, which are located on the same horizontal plane as the first lead screw. The two ends of the first guide rods are fixedly connected to two opposite inner walls of the housing, respectively. The first central sealing part is threadedly connected to the first lead screw and slidably connected to the first guide rod, and the second central sealing part is threadedly connected to the first lead screw and slidably connected to the first guide rod.

[0009] Preferably, the first central sealing part includes a central positive sealing ring, the outer wall of the central positive sealing ring is adapted to the through hole, and a horizontally arranged first horizontal plate is fixedly connected to the inner wall of the central positive sealing ring. One end of the first horizontal plate is threadedly connected to the first lead screw, and the other end of the first horizontal plate is slidably connected to the first guide rod.

[0010] Preferably, the second central sealing part includes a central oblique sealing ring, the outer wall of the central oblique sealing ring is adapted to the through hole, and a horizontally arranged second horizontal plate is fixedly connected to the inner wall of the central oblique sealing ring. One end of the second horizontal plate is threadedly connected to the first lead screw, and the other end of the second horizontal plate is slidably connected to the first guide rod.

[0011] Preferably, the second drive unit includes a second motor, which is fixedly connected to the inner wall of the housing. The output shaft of the second motor is fixedly connected to one end of a horizontally arranged second lead screw, and the other end of the second lead screw is rotatably connected to another inner wall of the housing. A second guide rod is arranged parallel to and spaced apart directly below the second lead screw, and the two ends of the second guide rod are respectively fixedly connected to two opposite inner walls of the housing. The first side sealing part is threadedly connected to the second lead screw and slidably connected to the second guide rod, and the second side sealing part is threadedly connected to the second lead screw and slidably connected to the second guide rod.

[0012] Preferably, the first side sealing part includes a positive slide block, which is threadedly connected to the second lead screw and slidably connected to the second guide rod. A plurality of horizontally spaced and vertically spaced first telescopic rods are fixedly connected to one end of the positive slide block near the sealing top plate. A positive sealing block is fixedly connected to the other end of the plurality of first telescopic rods. The positive sealing block is adapted to the inner wall of the square formed by the sealing top plate, the sealing side plate, and the sealing bottom plate.

[0013] Preferably, the second side sealing part includes an inclined slide seat, and a plurality of horizontally spaced second telescopic rods are fixedly connected to one end of the inclined slide seat near the sealing top plate. The other ends of the plurality of second telescopic rods are fixedly connected to an inclined sealing block. The inclined sealing block is adapted to the inner wall of the parallelogram formed by the sealing top plate, the sealing side plate, and the sealing bottom plate.

[0014] Preferably, the angle adjustment part includes a first hinge seat, the upper first hinge seat is fixedly connected to the top end of the sealing top plate, the lower first hinge seat is fixedly connected to the bottom end of the sealing bottom plate, the first hinge seat is fixedly connected to a first hinge shaft, the first hinge shaft is rotatably connected to one end of an inclined telescopic rod, the other end of the inclined telescopic rod is rotatably connected to a second hinge shaft, the second hinge shaft is fixedly connected to a second hinge seat, the upper second hinge seat is detachably connected to the bottom end of the top cover, and the lower second hinge seat is fixedly connected to the inner bottom wall of the outer shell.

[0015] Compared with the prior art, the present invention has the following advantages and technical effects:

[0016] This invention, through its grouting forming section, can simulate grouting reinforcement of faults in actual production processes, thereby improving the safety level of actual production and reducing economic waste. The angle adjustment section can adjust the tilt angle of the grouting forming section to simulate faults with different tilt angles in actual production. The first central sealing section and the first side sealing section can simultaneously seal the interior and sides of the grouting forming section, forming a complete closed space, thus achieving the grouting reinforcement state of faults in actual production. The first driving section drives the first and second central sealing sections to interchange positions, and the second driving section drives the first and second side sealing sections to interchange positions. Combined with the tilt angle adjustment of the grouting forming section, grouting reinforcement simulation of faults with different tilt angles can be achieved. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort:

[0018] Figure 1 This is a schematic diagram of the appearance of the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0020] Figure 3 for Figure 2 A magnified view of part A in the image;

[0021] Figure 4 This is a schematic diagram of another usage state of the present invention;

[0022] Figure 5 This is a cross-sectional view of the grouting molding section in another usage state of the present invention.

[0023] The components are as follows: 1. Outer shell; 2. Top cover; 3. Sealing top plate; 4. Sealing side plate; 5. Sealing bottom plate; 6. Triangular groove; 7. First motor; 8. First lead screw; 9. First guide rod; 10. Second motor; 11. Second lead screw; 12. Second guide rod; 13. Central positive sealing ring; 14. First horizontal plate; 15. Positive slide block; 16. First telescopic rod; 17. Positive sealing block; 18. Central oblique sealing ring; 19. Second horizontal plate; 20. Oblique slide block; 21. Second telescopic rod; 22. Oblique sealing block; 23. Grouting hole; 24. Vent hole; 25. First hinge seat; 26. First hinge shaft; 27. Inclined telescopic rod; 28. Second hinge shaft; 29. ​​Second hinge seat; 30. Telescopic hose; 31. Grouting port. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Reference Figures 1-5 The present invention provides a tunnel fault grouting reinforcement simulation device, including a shell 1, a top cover 2 detachably connected to the top of the shell 1, an adjustable grouting reinforcement simulation mechanism inside the shell 1, and a grouting port 31 on the top cover 2. The top of the adjustable grouting reinforcement simulation mechanism is detachably connected to the grouting port 31.

[0027] The adjustable grouting reinforcement simulation mechanism includes a grouting forming part. The top of the grouting forming part is detachably connected to the grouting port 31. Angle adjustment parts are fixedly connected to the top and bottom of the grouting forming part, respectively. The upper angle adjustment part is detachably connected to the bottom of the top cover 2, and the lower angle adjustment part is fixedly connected to the inner bottom wall of the outer shell 1. A first driving part is vertically inserted through the center of the grouting forming part. A first central sealing part and a second central sealing part are movably inserted through the first driving part. Both the first and second central sealing parts are adapted to the center of the grouting forming part. Second driving parts are symmetrically arranged on both sides of the grouting forming part. A first side sealing part and a second side sealing part are movably inserted through the second driving part. Both the first and second side sealing parts are adapted to the sides of the grouting forming part. The first side sealing part corresponds to the first central sealing part, and the second side sealing part corresponds to the second central sealing part.

[0028] The grouting forming section can simulate grouting reinforcement of faults in actual production processes, thereby improving the safety level of actual production and reducing economic waste. The angle adjustment section can adjust the tilt angle of the grouting forming section to simulate faults with different tilt angles in actual production processes. The first central sealing section and the first side sealing section can simultaneously seal the interior and both sides of the grouting forming section, forming a complete closed space inside, thus achieving the grouting reinforcement state of faults in actual production. The first driving section drives the first central sealing section and the second central sealing section to interchange positions, and the second driving section drives the first side sealing section and the second side sealing section to interchange positions. In conjunction with the tilt angle adjustment of the grouting forming section, grouting reinforcement simulation of faults with different tilt angles can be realized.

[0029] The grouting molding section further optimizes the design by including a sealing top plate 3, with sealing side plates 4 hinged to the two long sides of the sealing top plate 3. A through hole is provided in the center of the sealing side plate 4. Two triangular grooves 6 are provided on the side walls of the two sealing side plates 4 that are far apart from each other. The two triangular grooves 6 are located at the top and bottom of the through hole, respectively. The first central sealing part and the second central sealing part are adapted to the through hole. A sealing bottom plate 5 is hinged to the bottom of the two sealing side plates 4. A grouting hole 23 and several vent holes 24 are provided in the middle of the sealing side plate 4. Several vent holes 24 are symmetrically arranged on both sides of the grouting hole 23. The bottom end of the grouting hole 23 is fixedly connected to the grouting hose 30. The top end of the grouting hose 30 is detachably connected to the grouting port 31. The bottom end of the upper angle adjustment part is fixedly connected to the top end of the sealing side plate 4, and the top end of the lower angle adjustment part is fixedly connected to the bottom end of the sealing bottom plate 5.

[0030] The scheme is further optimized. The first drive unit includes a first motor 7, which is fixedly connected to the inner wall of the outer casing 1. The output shaft of the first motor 7 is fixedly connected to one end of a horizontally arranged first lead screw 8. The other end of the first lead screw 8 is rotatably connected to the other inner wall of the outer casing 1. The first lead screw 8 is parallel to and spaced apart by first guide rods 9. The first guide rods 9 and the first lead screw 8 are located on the same horizontal plane. The two ends of the first guide rods 9 are fixedly connected to two opposite inner walls of the outer casing 1, respectively. The first central sealing part is threadedly connected to the first lead screw 8 and slidably connected to the first guide rod 9. The second central sealing part is threadedly connected to the first lead screw 8 and slidably connected to the first guide rod 9.

[0031] The scheme is further optimized. The first central sealing part includes a central positive sealing ring 13. The outer wall of the central positive sealing ring 13 is adapted to the through hole. The inner wall of the central positive sealing ring 13 is fixedly connected to a horizontally set first horizontal plate 14. One end of the first horizontal plate 14 is threadedly connected to the first lead screw 8, and the other end of the first horizontal plate 14 is slidably connected to the first guide rod 9.

[0032] The scheme is further optimized. The second central sealing part includes a central oblique sealing ring 18. The outer wall of the central oblique sealing ring 18 is adapted to the through hole. The inner wall of the central oblique sealing ring 18 is fixedly connected to a horizontally arranged second horizontal plate 19. One end of the second horizontal plate 19 is threadedly connected to the first lead screw 8, and the other end of the second horizontal plate 19 is slidably connected to the first guide rod 9.

[0033] In a further optimized design, the second drive unit includes a second motor 10, which is fixedly connected to the inner wall of the outer casing 1. The output shaft of the second motor 10 is fixedly connected to one end of a horizontally arranged second lead screw 11, and the other end of the second lead screw 11 is rotatably connected to the other inner wall of the outer casing 1. A second guide rod 12 is arranged parallel to and spaced apart directly below the second lead screw 11. The two ends of the second guide rod 12 are fixedly connected to the two opposite inner walls of the outer casing 1, respectively. The first side sealing part is threadedly connected to the second lead screw 11 and slidably connected to the second guide rod 12. The second side sealing part is threadedly connected to the second lead screw 11 and slidably connected to the second guide rod 12.

[0034] The scheme is further optimized. The first side sealing part includes a positive slide 15. The positive slide 15 is threadedly connected to the second lead screw 11 and slidably connected to the second guide rod 12. A number of horizontally spaced first telescopic rods 16 are fixedly connected to one end of the positive slide 15 near the sealing top plate 3. The other ends of the number of first telescopic rods 16 are fixedly connected to a positive sealing block 17. The positive sealing block 17 is adapted to the inner wall of the square formed by the sealing top plate 3, the sealing side plate 4, and the sealing bottom plate 5.

[0035] The scheme is further optimized. The second side sealing part includes an inclined slide 20. The inclined slide 20 is fixedly connected to one end of several horizontally spaced second telescopic rods 21 on the side near the sealing top plate 3. The other end of several second telescopic rods 21 is fixedly connected to an inclined sealing block 22. The inclined sealing block 22 is adapted to the inner wall of the parallelogram formed by the sealing top plate 3, the sealing side plate 4, and the sealing bottom plate 5.

[0036] Further optimization of the design: the angle adjustment unit includes a first hinge seat 25. The upper first hinge seat 25 is fixedly connected to the top of the sealing top plate 3, and the lower first hinge seat 25 is fixedly connected to the bottom of the sealing bottom plate 5. The first hinge seat 25 is fixedly connected to a first hinge shaft 26. The first hinge shaft 26 is rotatably connected to one end of an inclined telescopic rod 27. The other end of the inclined telescopic rod 27 is rotatably connected to a second hinge shaft 28. The second hinge shaft 28 is fixedly connected to a second hinge seat 29. The upper second hinge seat 29 is detachably connected to the bottom of the top cover 2, and the lower second hinge seat 29 is fixedly connected to the inner bottom wall of the outer shell 1.

[0037] The working process of this invention is as follows:

[0038] When the fault in the simulated grouting reinforcement is perpendicular to the roadway, all the inclined telescopic rods 27 are controlled to extend and retract to a suitable length, so that the sealing top plate 3 and the sealing bottom plate 5 are parallel to each other and perpendicular to the two sealing side plates 4, forming a square grouting space. Then, the first motor 7 is controlled to drive the first lead screw 8 to rotate, thereby driving the central positive sealing ring 13 to move into the through holes of the two sealing side plates 4 and block the two through holes. Then, the second motor 10 is controlled to drive the second lead screw 11 to rotate, thereby driving the two positive sliding blocks 15 to move with the two positive sealing blocks 17 to the two sides of the square grouting space respectively. Then, the first telescopic rod 16 extends and drives the positive sealing block 17 to move horizontally into the side of the square, and cooperates with the central positive sealing ring 13 to seal the square into a closed space. Then, grouting is performed into the closed space through the grouting port 31 and the telescopic hose 30.

[0039] When the fault in the simulated grouting reinforcement is inclined and forms a certain angle with the roadway, all inclined telescopic rods 27 are controlled to extend and retract to a suitable length, so that the sealing top plate 3 and the sealing bottom plate 5 are parallel to each other and form the required angle with the two sealing side plates 4, forming an oblique quadrilateral grouting space. Then, the first motor 7 is controlled to drive the first lead screw 8 to rotate, thereby driving the central oblique sealing ring 18 to move into the through holes of the two sealing side plates 4 and block the two through holes. Then, the second motor 10 is controlled to drive the second lead screw 11 to rotate, thereby driving the two oblique slides 20 to move with the two oblique sealing blocks 22 to the two sides of the oblique quadrilateral grouting space respectively. Then, the second telescopic rod 21 extends and drives the oblique sealing blocks 22 to move horizontally into the side of the oblique quadrilateral, and cooperates with the central oblique sealing ring 18 to seal the oblique quadrilateral into a closed space. Then, grouting is performed into the closed space through the grouting port 31 and the telescopic hose 30.

[0040] In this invention, only one blocking structure with an inclined angle is disclosed. According to the actual simulation needs, multiple blocking structures with different inclined angles can be added to the structure of this invention to broaden the simulation range and improve the applicability of this invention.

[0041] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0042] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A simulation device for grouting reinforcement of roadways across faults, characterized in that, Includes an outer shell (1), the top of which is detachably connected to a top cover (2), an adjustable grouting reinforcement simulation mechanism is provided inside the outer shell (1), the top cover (2) is provided with a grouting port (31), and the top of the adjustable grouting reinforcement simulation mechanism is detachably connected to the grouting port (31); The adjustable grouting reinforcement simulation mechanism includes a grouting forming part. The top end of the grouting forming part is detachably connected to the grouting port (31). Angle adjustment parts are fixedly connected to the top and bottom ends of the grouting forming part, respectively. The angle adjustment part located above is detachably connected to the bottom end of the top cover (2), and the angle adjustment part located below is fixedly connected to the inner bottom wall of the outer shell (1). A first driving part is vertically inserted through the center of the grouting forming part. A first central sealing part and a second central sealing part are movably inserted through the first driving part. The first central sealing part and the second central sealing part are both adapted to the center of the grouting forming part. A second driving part is symmetrically arranged on both sides of the grouting forming part. A first side sealing part and a second side sealing part are movably inserted through the second driving part. The first side sealing part and the second side sealing part are both adapted to the side of the grouting forming part. The first side sealing part corresponds to the first central sealing part, and the second side sealing part corresponds to the second central sealing part. The grouting molding part includes a sealing top plate (3), and sealing side plates (4) are respectively hinged to the two long sides of the sealing top plate (3). A through hole is opened in the center of the sealing side plate (4). Two triangular grooves (6) are respectively opened on the side walls of the two sealing side plates (4) that are far apart from each other. The two triangular grooves (6) are respectively located at the top and bottom of the through hole. The first central sealing part and the second central sealing part are adapted to the through hole. A sealing bottom plate (5) is hinged to the bottom end of the two sealing side plates (4). The top plate (3) has a grouting hole (23) and several venting holes (24) in the middle. Several venting holes (24) are symmetrically arranged on both sides of the grouting hole (23). The bottom end of the grouting hole (23) is fixedly connected to the grouting hose (30). The top end of the grouting hose (30) is detachably connected to the grouting port (31). The bottom end of the angle adjustment part located above is fixedly connected to the top end of the sealing top plate (3), and the top end of the angle adjustment part located below is fixedly connected to the bottom end of the sealing bottom plate (5).

2. The tunnel fault-crossing grouting reinforcement simulation device according to claim 1, characterized in that, The first drive unit includes a first motor (7), which is fixedly connected to the inner wall of the outer casing (1). The output shaft of the first motor (7) is fixedly connected to one end of a horizontally arranged first lead screw (8). The other end of the first lead screw (8) is rotatably connected to the other inner wall of the outer casing (1). The first lead screw (8) is parallel to and spaced apart by first guide rods (9). The first guide rods (9) and the first lead screw (8) are located on the same horizontal plane. The two ends of the first guide rods (9) are fixedly connected to two opposite inner walls of the outer casing (1). The first central sealing part is threadedly connected to the first lead screw (8) and slidably connected to the first guide rod (9). The second central sealing part is threadedly connected to the first lead screw (8) and slidably connected to the first guide rod (9).

3. The tunnel fault-crossing grouting reinforcement simulation device according to claim 2, characterized in that, The first central sealing part includes a central positive sealing ring (13), the outer side wall of the central positive sealing ring (13) is adapted to the through hole, and the inner side wall of the central positive sealing ring (13) is fixedly connected to a horizontally arranged first horizontal plate (14). One end of the first horizontal plate (14) is threadedly connected to the first lead screw (8), and the other end of the first horizontal plate (14) is slidably connected to the first guide rod (9).

4. The tunnel fault-crossing grouting reinforcement simulation device according to claim 2, characterized in that, The second central sealing part includes a central oblique sealing ring (18), the outer side wall of the central oblique sealing ring (18) is adapted to the through hole, and the inner side wall of the central oblique sealing ring (18) is fixedly connected to a horizontally arranged second horizontal plate (19). One end of the second horizontal plate (19) is threadedly connected to the first lead screw (8), and the other end of the second horizontal plate (19) is slidably connected to the first guide rod (9).

5. The tunnel fault-crossing grouting reinforcement simulation device according to claim 1, characterized in that, The second drive unit includes a second motor (10), which is fixedly connected to the inner wall of the housing (1). The output shaft of the second motor (10) is fixedly connected to one end of a horizontally arranged second lead screw (11). The other end of the second lead screw (11) is rotatably connected to the other inner wall of the housing (1). A second guide rod (12) is arranged parallel and spaced below the second lead screw (11). The two ends of the second guide rod (12) are fixedly connected to two opposite inner walls of the housing (1). The first side sealing part is threadedly connected to the second lead screw (11) and slidably connected to the second guide rod (12). The second side sealing part is threadedly connected to the second lead screw (11) and slidably connected to the second guide rod (12).

6. The tunnel fault-crossing grouting reinforcement simulation device according to claim 5, characterized in that, The first side sealing part includes a positive slide (15), which is threadedly connected to the second lead screw (11) and slidably connected to the second guide rod (12). The positive slide (15) is fixedly connected to one end of several horizontally spaced first telescopic rods (16) on the side near the sealing top plate (3). The other end of several first telescopic rods (16) is fixedly connected to a positive sealing block (17). The positive sealing block (17) is adapted to the inner wall of the square formed by the sealing top plate (3), the sealing side plate (4), and the sealing bottom plate (5).

7. A tunnel fault-crossing grouting reinforcement simulation device according to claim 5, characterized in that, The second side sealing part includes an inclined slide (20). The inclined slide (20) is fixedly connected to one end of a plurality of horizontally spaced second telescopic rods (21) on the side near the sealing top plate (3). The other end of the plurality of second telescopic rods (21) is fixedly connected to an inclined sealing block (22). The inclined sealing block (22) is adapted to the inner wall of the parallelogram formed by the sealing top plate (3), the sealing side plate (4), and the sealing bottom plate (5).

8. The tunnel fault-crossing grouting reinforcement simulation device according to claim 1, characterized in that, The angle adjustment unit includes a first hinge seat (25). The upper first hinge seat (25) is fixedly connected to the top of the sealing top plate (3), and the lower first hinge seat (25) is fixedly connected to the bottom of the sealing bottom plate (5). The first hinge seat (25) is fixedly connected to a first hinge shaft (26). The first hinge shaft (26) is rotatably connected to one end of an inclined telescopic rod (27). The other end of the inclined telescopic rod (27) is rotatably connected to a second hinge shaft (28). The second hinge shaft (28) is fixedly connected to a second hinge seat (29). The upper second hinge seat (29) is detachably connected to the bottom of the top cover (2), and the lower second hinge seat (29) is fixedly connected to the inner bottom wall of the outer shell (1).