A device for detecting the adhesion strength of underwater non-dispersible grouting material of tunnel surrounding rock in a water-rich fracture zone

Abstract

The application belongs to the technical field of detection devices, and particularly relates to a device for detecting the adhesion strength of underwater non-dispersive grouting material of tunnel surrounding rock in a water-rich fracture zone, which aims at the technical problem that the mixing dead zone exists, the uniformity of the finally prepared sample is poor, the performance fluctuates greatly, and the representativeness and repeatability of the subsequent adhesion strength test results are directly affected, and the following scheme is proposed, which comprises a base, the outer wall of the top end of the base is fixedly connected with a support, the outer wall of the top end of the support is fixedly connected with a mounting frame, and the outer wall of one side of the bottom of the support is provided with a motor. The device for detecting the adhesion strength of underwater non-dispersive grouting material of tunnel surrounding rock in a water-rich fracture zone disclosed by the application not only realizes self-adaptive coverage of the mixing range on the slurry liquid surface and viscosity, eliminates the mixing dead angle of the fixed mixer, but also instantly crushes and screens the admixture falling into the lifting plate through the linkage of the rolling mill, and significantly improves the dispersion efficiency of the admixture and the uniformity of the slurry.

Description

Technical Field

[0001] This invention relates to the field of testing device technology, and in particular to a testing device for the adhesion strength of underwater non-dispersible grouting material in the surrounding rock of tunnels in water-rich fault zones. Background Technology

[0002] In tunnel construction in water-rich fault zones, the stability of the surrounding rock is a core challenge. Water inrush and seepage severely interfere with conventional grouting. Therefore, special grouting materials that do not disperse when exposed to water and have high adhesion are required. Before practical application, it is necessary to accurately evaluate their adhesion strength to the surrounding rock through laboratory testing. This is crucial for ensuring project safety and optimizing material ratios.

[0003] The testing devices and methods commonly used in laboratories have two significant technical bottlenecks when simulating real dynamic underwater preparation and testing conditions, which restrict the accuracy and efficiency of the tests. First, in the core slurry preparation and mixing process, most existing devices adopt a stirring method with a fixed depth and trajectory. This static stirring cannot simulate the incorporation and diffusion process of admixtures in flowing water in actual engineering, which can easily lead to uneven axial mixing of the slurry and the existence of stirring dead zones. As a result, the uniformity of the final prepared sample is poor and the performance fluctuates greatly, which directly affects the representativeness and repeatability of the subsequent adhesion strength test results. Summary of the Invention

[0004] This invention discloses a device for testing the adhesion strength of underwater non-dispersible grouting materials in the surrounding rock of tunnels in water-rich fault zones. It aims to solve the technical problem in the prior art that static stirring cannot simulate the incorporation and diffusion process of admixtures in flowing water in actual engineering, which easily leads to uneven axial mixing of grout and the existence of stirring dead zones. As a result, the uniformity of the final prepared samples is poor, the performance fluctuates greatly, and the representativeness and repeatability of subsequent adhesion strength test results are directly affected.

[0005] This invention proposes a device for testing the adhesion strength of underwater non-dispersible grouting materials in the surrounding rock of tunnels in water-rich fault zones. The device includes a base, a support fixedly connected to the top outer wall of the base, a mounting frame fixedly connected to the top outer wall of the support, a motor mounted on one side outer wall of the bottom of the support, a transmission rod connected to one end of the motor's output shaft via a coupling, a bevel gear set on the outer wall of the transmission rod, a rotating rod fixedly connected to the top inner wall of the bevel gear set, a preparation container fixedly connected to the bottom outer wall of the mounting frame, a slide rail on the outer wall of the rotating rod, a stirring frame slidably connected to the bottom outer wall of the slide rail, a sliding tube slidably connected to the top outer wall of the slide rail, and a movable... The movable plate has a rotating rod fixedly connected to the outer wall of its bottom end. Circular holes are formed at the four corners of the outer wall of its top end. A storage tank is slidably connected to the inner wall of each circular hole. Positioning holes are formed on both outer walls of the top end of the mounting frame. Vertical rods are slidably connected to the inner walls of the positioning holes. An annular frame is fixedly connected to the outer wall of the top end of the vertical rod. An annular groove is formed on the inner wall of the annular frame. A rotating disk is slidably connected to the inner wall of the annular groove. A connecting pipe is fixedly connected to the outer wall of the top end of the stirring frame. An annular groove is formed on the outer wall of the top end of the connecting pipe. A lifting plate is fixedly connected to the outer wall of the bottom end of the vertical rod. An annular plate is fixedly connected to the outer wall of the bottom end of the lifting plate. The annular plate is slidably connected to the inner wall of the annular groove.

[0006] In a preferred embodiment, telescopic rods are fixedly connected to the four corners of the bottom outer wall of the rotating disk. One end of the piston rod of the telescopic rod is fixedly connected to the outer wall of the movable plate. A spring is sleeved on the outer wall of the telescopic rod. The two ends of the spring are fixedly connected to the outer walls of the rotating disk and the movable plate, respectively. Mounting holes are opened at the four corners of the top outer wall of the rotating disk, and the storage tank is fixedly connected to the inner wall of the mounting hole.

[0007] In a preferred embodiment, the outer wall of the stirring rack is provided with fan blades of gradually decreasing size from top to bottom, and the fan blades are arranged in a ring array. The top outer wall of the lifting plate is provided with a circular groove. The two outer walls of the sliding tube are fixedly connected with crossbars, and the outer walls of the crossbars are slidably connected with rolling rollers.

[0008] In a preferred embodiment, the bottom inner wall of the circular groove is provided with a plurality of screening holes, which are distributed in a rectangular array. The rolling roller is slidably connected to the inner wall of the circular groove, and a cleaning scraper is fixedly connected to one side outer wall of the crossbar. The cleaning scraper is slidably connected to the inner wall of the circular groove.

[0009] In a preferred embodiment, limit blocks are provided on the inner walls of both sides of the bottom of the storage tank, an inner tube is slidably connected to the inner wall of the bottom of the storage tank, limit grooves are provided on the outer walls of both sides of the inner tube, the limit blocks are slidably connected to the inner walls of the limit grooves, and a conical groove is provided on the outer wall of the top of the inner tube.

[0010] In a preferred embodiment, a feed pipe is fixedly connected to the bottom outer wall of the inner tube, the bottom of the feed pipe is provided with an inclined surface, a solenoid valve is installed on the inner wall of the feed pipe, and feed holes are opened at the four corners of the top outer wall of the mounting frame, and the size of the feed pipe and the feed holes are adapted to each other.

[0011] In a preferred embodiment, the top outer wall of the storage tank is threadedly connected to an end cap, and a viewing window is provided on one side outer wall of the storage tank, with size markings on the outer wall of the viewing window.

[0012] In a preferred embodiment, a cement single-liquid slurry injection pipe is provided on one side of the outer wall of the top of the preparation container, a slurry output pipe is provided on the other side of the outer wall of the bottom of the preparation container, and a slurry holding cylinder is installed on one side of the outer wall of the top of the base, with the slurry output pipe connected to the slurry holding cylinder.

[0013] In a preferred embodiment, an electric ball valve is provided on the outer wall of the slurry output pipe, and a viscosity meter is installed on the top outer wall of the slurry container.

[0014] In a preferred embodiment, a stirring frame two is fixedly connected to one outer wall of the transmission rod, the stirring frame two being adapted to the size of the slurry container, and the lifting plate being slidably connected to the inner wall of the top of the preparation container.

[0015] As can be seen from the above, the underwater non-dispersible grouting material adhesion strength testing device for tunnel surrounding rock in water-rich fault zones provided by this invention features a stirring system driven by a motor, transmission rod, and bevel gear set. It innovatively links components such as the storage tank, spring, and lifting plate mechanically. Its core effect is that, with the addition of admixtures and the reduction in the weight of the storage tank, the entire admixture adding mechanism and its linked stirring frame can automatically and smoothly rise under the action of the spring. This not only achieves adaptive coverage of the stirring range to the grout surface and viscosity, eliminating the mixing dead zones of the fixed stirrer, but also, through linkage... The crushing rollers instantly crush and screen the additives falling into the lifting plate, significantly improving the dispersion efficiency of the additives and the uniformity of the slurry. This provides a sample base with highly consistent performance for subsequent adhesion strength testing. The device is designed with active protection measures for materials prone to clogging. The conical groove structure at the bottom of the feed pipe can cleverly avoid clogging by rotating. The cleaning scraper can automatically scrape off the residue and keep the screening holes unobstructed. At the same time, the power system also drives two separate stirring racks to continuously and gently stir the slurry in the spare container to prevent it from settling and segregating. The beneficial effects are monitored online by a viscosity tester. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the overall structure of a device for detecting the adhesion strength of underwater non-dispersible grouting material in the surrounding rock of a tunnel in a water-rich fault zone, as proposed in this invention. Figure 2 This is a schematic diagram of the transmission rod structure of a device for detecting the adhesion strength of underwater non-dispersible grouting materials in the surrounding rock of tunnels in water-rich fault zones, as proposed in this invention. Figure 3 This is a schematic diagram of the lifting plate connection structure of a device for testing the adhesion strength of underwater non-dispersible grouting materials in the surrounding rock of tunnels in water-rich fault zones, as proposed in this invention. Figure 4 This is a schematic diagram of the rotating rod structure of a device for detecting the adhesion strength of underwater non-dispersible grouting materials in the surrounding rock of tunnels in water-rich fault zones, as proposed in this invention. Figure 5 This is a schematic diagram of the ring frame structure of a device for testing the adhesion strength of underwater non-dispersible grouting materials in the surrounding rock of tunnels in water-rich fault zones, as proposed in this invention. Figure 6 This is an exploded schematic diagram of the storage tank connection structure of a device for testing the adhesion strength of underwater non-dispersible grouting materials in the surrounding rock of a tunnel in a water-rich fault zone, as proposed in this invention. Figure 7 This is an exploded schematic diagram of the lifting plate connection structure of a device for testing the adhesion strength of underwater non-dispersible grouting materials in the surrounding rock of a tunnel in a water-rich fault zone, as proposed in this invention. Figure 8 This is a schematic diagram of the ring frame structure of a device for testing the adhesion strength of underwater non-dispersible grouting materials in the surrounding rock of tunnels in water-rich fault zones, as proposed in this invention. Figure 9 This is a schematic diagram of the mounting frame structure for a device for testing the adhesion strength of underwater non-dispersible grouting materials in the surrounding rock of tunnels in water-rich fault zones, as proposed in this invention.

[0017] In the diagram: 1. Base; 2. Support; 3. Motor; 4. Preparation container; 5. Transmission rod; 6. Electric ball valve; 7. Slurry container; 8. Viscometer; 9. Rotating disc; 10. Storage tank; 11. Annular frame; 12. Mounting frame; 13. Feed hole; 14. Rotating rod; 15. Stirring frame one; 16. Stirring frame two; 17. Dimension markings; 18. Telescopic rod; 19. Spring; 20. Vertical rod; 21. Compactor roller; 22. Screening hole; 23. Lifting plate; 24. Movable plate; 25. Slide tube; 26. Connecting pipe; 27. Slide rail; 28. Bevel gear set; 29. ​​Inner tube; 30. Feed pipe; 31. Solenoid valve; 32. Limiting groove; 33. Conical groove; 34. Crossbar; 35. Cleaning scraper; 36. Annular plate. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0019] The present invention discloses an underwater non-dispersible grouting material adhesion strength testing device for tunnel surrounding rock in water-rich fault zones. It is mainly used in scenarios where static stirring cannot simulate the incorporation and diffusion process of admixtures in flowing water in actual engineering, which can easily lead to uneven axial mixing of grout and the existence of stirring dead zones. As a result, the uniformity of the final prepared sample is poor and the performance fluctuates greatly, which directly affects the representativeness and repeatability of the subsequent adhesion strength test results.

[0020] Reference Figures 1-9 A device for testing the adhesion strength of underwater non-dispersible grouting material in the surrounding rock of a tunnel in a water-rich fault zone includes a base 1. The base 1 has a support 2 fixedly connected to its top outer wall, a mounting frame 12 fixedly connected to its top outer wall, a motor 3 mounted on one side of the bottom outer wall of the support 2, a transmission rod 5 connected to one end of the motor 3's output shaft via a coupling, a bevel gear set 28 on the outer wall of the transmission rod 5, a rotating rod 14 fixedly connected to the top inner wall of the bevel gear set 28, a preparation container 4 fixedly connected to the bottom outer wall of the mounting frame 12, a slide rail 27 on the outer wall of the rotating rod 14, a stirring rack 15 slidably connected to the bottom outer wall of the slide rail 27, a sliding tube 25 slidably connected to the top outer wall of the slide rail 27, and a rotating mechanism 15 rotatably connected to the top outer wall of the mounting frame 12. The movable plate 24 and the rotating rod 14 are fixedly connected to the bottom outer wall of the movable plate 24. Circular holes are opened at the four corners of the top outer wall of the movable plate 24. The storage tank 10 is slidably connected to the inner wall of the circular holes. Positioning holes are opened on both sides of the top outer wall of the mounting frame 12. Vertical rods 20 are slidably connected to the inner wall of the positioning holes. Circular frame 11 is fixedly connected to the top outer wall of the vertical rod 20. Circular groove 1 is provided on the inner wall of circular frame 11. Rotating disk 9 is slidably connected to the inner wall of circular groove 1. Connecting pipe 26 is fixedly connected to the top outer wall of stirring rack 15. Circular groove 26 is opened on the top outer wall of connecting pipe 26. Lifting plate 23 is fixedly connected to the bottom outer wall of the vertical rod 20. Circular plate 36 is fixedly connected to the bottom outer wall of lifting plate 23. Circular plate 36 is slidably connected to the inner wall of circular groove 2.

[0021] Reference Figure 1 , Figure 3 and Figure 5 In a preferred embodiment, telescopic rods 18 are fixedly connected to the four corners of the bottom outer wall of the rotating disk 9. One end of the piston rod of the telescopic rod 18 is fixedly connected to the outer wall of the movable plate 24. A spring 19 is sleeved on the outer wall of the telescopic rod 18. The two ends of the spring 19 are fixedly connected to the outer wall of the rotating disk 9 and the movable plate 24, respectively. Mounting holes are opened at the four corners of the top outer wall of the rotating disk 9, and the storage tank 10 is fixedly connected to the inner wall of the mounting hole.

[0022] Reference Figure 1 , Figure 4 and Figure 8 In a preferred embodiment, the outer wall of the stirring rack 15 is provided with fan blades of gradually decreasing size from top to bottom, and the fan blades are arranged in a ring array. The top outer wall of the lifting plate 23 is provided with a circular groove. The two outer walls of the sliding tube 25 are fixedly connected with crossbars 34, and the outer walls of the crossbars 34 are slidably connected with rollers 21.

[0023] Specifically, motor 3 serves as the core power source, driving the horizontally positioned transmission rod 5. The transmission rod 5 changes the power direction through a set of horizontally and vertically cooperating bevel gears 28, driving the vertical rotating rod 14. The rotating rod 14 passes through the preparation container 4, and a stirring frame 15 is slidably mounted at its lower end for powerfully stirring the cement, water, and other base materials inside the container. The storage tank 10 is used to hold powdered or granular additives. It is fixed to the rotating disk 9 by a mounting frame 12. The rotating disk 9 is slidably mounted inside the annular frame 11. The transmission rod 5 drives the rotating disk 9 to rotate around its central axis through a sliding tube 25, a connecting tube 26, and a movable plate 24. The bottom of the storage tank 10 is connected to an inner tube 29, and the end is a feed pipe 30 with a conical groove 33. Below the feed pipe 30 is the feed hole 13 at the top of the preparation container 4. The entire assembly of the rotating disk 9 and the storage tank 10 is connected to the lifting plate 23 below by a vertical rod 20. The vertical rod 20 can slide on the mounting frame 12. Initially, it extends... The spring 19 on the outer wall of the retractor 18 is compressed. When the additive is reduced and the total weight of the system is reduced to less than the elastic force of the spring 19, the entire assembly rises under the action of the spring 19. The lifting plate 23 is located inside the preparation container 4. When it rises, it drives the stirring frame 15 to rise synchronously through the bottom connector, realizing the adaptive adjustment of the stirring depth. The lifting plate 23 is covered with screening holes 22. A crossbar 34 is set on the rotating rod 14 through the sliding tube 25. When the rotating rod 14 rotates, the crossbar 34 rotates in the horizontal plane. The rolling roller 21 installed on its outside rolls on the surface of the lifting plate 23. The additive falling from the feed hole 13 first falls onto the lifting plate 23. The rotating rolling roller 21 immediately crushes and breaks it. Qualified fine particles fall into the slurry below through the screening holes 22. Coarse particles or lumps are further crushed and mixed before entering the slurry container 7. The adhesion strength of the grouting material inside is tested by an adhesion tester. In specific application scenarios, the weight reduction of the storage tank 10 triggers the spring 19 to rebound, and the mechanical linkage stirring frame 15 is automatically and uniformly raised. This process does not rely on manual intervention, ensuring that the stirring trajectory, intensity, and time parameters of each round of experiments are completely consistent. This provides a reliable sample basis for scientifically comparing different formulations. The dynamically rising stirring head can continuously "pull" newly added, potentially floating, lightweight additives into the depth of the slurry and perform strong shearing. This is especially suitable for developing special grouting materials with high viscosity and high anti-dispersion properties, ensuring that the effective components are evenly distributed in three-dimensional space, thereby accurately measuring their true upper limit of adhesion strength.

[0024] Reference Figure 4 , Figure 7 and Figure 8 In a preferred embodiment, a plurality of screening holes 22 are provided on the bottom inner wall of the circular groove, the screening holes 22 are distributed in a rectangular array, the rolling roller 21 is slidably connected to the inner wall of the circular groove, and a cleaning scraper 35 is fixedly connected to one side outer wall of the crossbar 34, the cleaning scraper 35 is slidably connected to the inner wall of the circular groove.

[0025] Reference Figure 5 , Figure 6 and Figure 7 In a preferred embodiment, limit blocks are provided on the inner walls of both sides of the bottom of the storage tank 10, and an inner tube 29 is slidably connected to the inner wall of the bottom of the storage tank 10. Limit grooves 32 are provided on the outer walls of both sides of the inner tube 29, and the limit blocks are slidably connected to the inner walls of the limit grooves 32. A conical groove 33 is provided on the outer wall of the top of the inner tube 29.

[0026] Reference Figure 1 , Figure 3 and Figure 5 In a preferred embodiment, a feed pipe 30 is fixedly connected to the bottom outer wall of the inner tube 29. The bottom of the feed pipe 30 is provided with an inclined surface. A solenoid valve 31 is installed on the inner wall of the feed pipe 30. Feed holes 13 are opened at the four corners of the top outer wall of the mounting frame 12. The size of the feed pipe 30 and the feed holes 13 are adapted to each other.

[0027] Reference Figure 1 , Figure 3 and Figure 5 In a preferred embodiment, the top outer wall of the storage tank 10 is connected to an end cap by a thread, and a viewing window is provided on one side outer wall of the storage tank 10, with size markings 17 on the outer wall of the viewing window.

[0028] Reference Figure 1 , Figure 2 and Figure 3In a preferred embodiment, a cement single-liquid slurry injection pipe is provided on one side of the outer wall of the top of the preparation container 4, and a slurry output pipe is provided on the other side of the outer wall of the bottom of the preparation container 4. A slurry holding cylinder 7 is installed on one side of the outer wall of the top of the base 1. The slurry output pipe is connected to the slurry holding cylinder 7. In a preferred embodiment, an electric ball valve 6 is provided on the outer wall of the slurry output pipe. A viscosity tester 8 is installed on the outer wall of the top of the slurry holding cylinder 7. A stirring frame 26 is fixedly connected to one side of the outer wall of the transmission rod 5. The stirring frame 26 is adapted to the size of the slurry holding cylinder 7. The lifting plate 23 is slidably connected to the inner wall of the top of the preparation container 4.

[0029] Specifically, to prevent the admixture from clogging at the outlet of the feed pipe 30 or the feed hole 13, the outlet of the feed pipe 30 at the bottom of the storage tank 10 is designed with a conical groove 33 with an inclined surface. When it encounters slight obstruction from fixed components such as the mounting frame 12 inside the preparation container 4 during the rotational addition process, the inclined surface allows relative sliding, avoiding hard collisions and material blockage. The device is equipped with a cleaning scraper 35. During the lifting of the lifting plate 23 and the rotation of the crushing roller 21, the cleaning scraper 35 can promptly scrape off the admixture residues adhering to the edge of the screening hole 22 or the surface of the lifting plate 23. This ensures that the slurry is cleaned to the area of ​​the screening hole 22 for compaction, ensuring a smooth screening and addition process. The transmission rod 5 also drives the stirring rack 16 to rotate inside the container 7. The container 7 is used to hold the slurry sample that has been initially mixed and is ready for adhesion strength testing. The continuous slow stirring of the stirring rack 16 can prevent the slurry from settling or segregating during test preparation. The viscosity tester 8 is installed near or immersed in the container 7 and can monitor the viscosity change of the slurry in real time or at regular intervals, providing key data for evaluating the working performance of the grouting material and predicting its adhesion strength. In specific application scenarios, the conical groove 33 at the bottom of the feed pipe 30 can scrape the pipe opening with slight collision during rotation, preventing blockage and ensuring uninterrupted feeding when multiple sets of experiments are carried out continuously. At the same time, the continuous slow stirring of the slurry to be tested in the container 7 by the stirring rack 2 16, combined with the online monitoring of the viscosity tester 8, forms a stable process of "preparation and testing on the spot", effectively avoiding the degradation of sample performance before testing and ensuring that each adhesion strength data corresponds to a specific and fresh slurry state.

[0030] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A device for testing the adhesion strength of underwater non-dispersible grouting material in the surrounding rock of a tunnel in a water-rich fault zone, comprising a base (1), characterized in that, A bracket (2) is fixedly connected to the top outer wall of the base (1). A mounting frame (12) is fixedly connected to the top outer wall of the bracket (2). A motor (3) is installed on one side outer wall of the bottom of the bracket (2). One end of the output shaft of the motor (3) is connected to a transmission rod (5) via a coupling. A bevel gear set (28) is provided on the outer wall of the transmission rod (5). A rotating rod (14) is fixedly connected to the top inner wall of the bevel gear set (28). A preparation container (4) is fixedly connected to the bottom outer wall of the mounting frame (12). A slide rail (27) is provided on the outer wall of the rotating rod (14). A stirring rack (15) is slidably connected to the bottom outer wall of the slide rail (27). A slide tube (25) is slidably connected to the top outer wall of the slide rail (27). A movable plate (24) is rotatably provided on the top outer wall of the mounting frame (12). The rotating rod (14) is fixedly connected to... A circular hole is provided at the four corners of the top outer wall of the movable plate (24). The inner wall of the circular hole is slidably connected to a storage tank (10). The two outer walls of the top of the mounting frame (12) are provided with positioning holes. The inner wall of the positioning hole is slidably connected to a vertical rod (20). The top outer wall of the vertical rod (20) is fixedly connected to an annular frame (11). The inner wall of the annular frame (11) is provided with an annular groove one. The inner wall of the annular groove one is slidably connected to a rotating disk (9). The top outer wall of the stirring frame one (15) is fixedly connected to a connecting pipe (26). The top outer wall of the connecting pipe (26) is provided with an annular groove two. The bottom outer wall of the vertical rod (20) is fixedly connected to a lifting plate (23). The bottom outer wall of the lifting plate (23) is fixedly connected to an annular plate (36). The annular plate (36) is slidably connected to the inner wall of the annular groove two.

2. The device for testing the adhesion strength of underwater non-dispersible grouting material in the surrounding rock of a tunnel in a water-rich fault zone according to claim 1, characterized in that, Telescopic rods (18) are fixedly connected to the four corners of the bottom outer wall of the rotating disk (9). One end of the piston rod of the telescopic rod (18) is fixedly connected to the outer wall of the movable plate (24). A spring (19) is sleeved on the outer wall of the telescopic rod (18). The two ends of the spring (19) are fixedly connected to the outer walls of the rotating disk (9) and the movable plate (24) respectively. Mounting holes are opened at the four corners of the top outer wall of the rotating disk (9). The storage tank (10) is fixedly connected to the inner wall of the mounting hole.

3. The device for testing the adhesion strength of underwater non-dispersible grouting material in the surrounding rock of a tunnel in a water-rich fault zone according to claim 1, characterized in that, The outer wall of the stirring rack (15) is provided with fan blades of gradually decreasing size from top to bottom. The fan blades are arranged in a ring array. The top outer wall of the lifting plate (23) is provided with a circular groove. The outer walls of both sides of the sliding tube (25) are fixedly connected with crossbars (34). The outer walls of the crossbars (34) are slidably connected with rollers (21).

4. The device for testing the adhesion strength of underwater non-dispersible grouting material in the surrounding rock of a tunnel in a water-rich fault zone according to claim 3, characterized in that, The bottom inner wall of the circular groove is provided with a number of screening holes (22), which are arranged in a rectangular array. The rolling roller (21) is slidably connected to the inner wall of the circular groove. A cleaning scraper (35) is fixedly connected to one side of the outer wall of the crossbar (34), and the cleaning scraper (35) is slidably connected to the inner wall of the circular groove.

5. The device for testing the adhesion strength of underwater non-dispersible grouting material in the surrounding rock of a tunnel in a water-rich fault zone according to claim 1, characterized in that, Limiting blocks are provided on both sides of the bottom inner wall of the storage tank (10). An inner tube (29) is slidably connected to the bottom inner wall of the storage tank (10). Limiting grooves (32) are opened on both sides of the outer wall of the inner tube (29). The limiting blocks are slidably connected to the inner wall of the limiting grooves (32). A conical groove (33) is opened on the top outer wall of the inner tube (29).

6. The device for testing the adhesion strength of underwater non-dispersible grouting material in the surrounding rock of a tunnel in a water-rich fault zone according to claim 5, characterized in that, The bottom outer wall of the inner tube (29) is fixedly connected to the feed pipe (30), the bottom of the feed pipe (30) is provided with a slope, the inner wall of the feed pipe (30) is equipped with a solenoid valve (31), and the top outer wall of the mounting frame (12) is provided with feed holes (13) at the four corners. The size of the feed pipe (30) and the feed hole (13) are compatible.

7. The device for testing the adhesion strength of underwater non-dispersible grouting material in the surrounding rock of a tunnel in a water-rich fault zone according to claim 6, characterized in that, The storage tank (10) has an end cap connected to its top outer wall by a thread, and a viewing window is provided on one side outer wall of the storage tank (10), with size markings (17) on the outer wall of the viewing window.

8. The device for testing the adhesion strength of underwater non-dispersible grouting material in the surrounding rock of a tunnel in a water-rich fault zone according to claim 1, characterized in that, A cement single-liquid slurry injection pipe is provided on one side of the top of the preparation container (4), and a slurry output pipe is provided on the other side of the bottom of the preparation container (4). A slurry holding cylinder (7) is installed on one side of the top of the base (1), and the slurry output pipe is connected to the slurry holding cylinder (7).

9. A device for testing the adhesion strength of underwater non-dispersible grouting material in the surrounding rock of a tunnel in a water-rich fault zone according to claim 8, characterized in that, An electric ball valve (6) is installed on the outer wall of the slurry output pipe, and a viscosity tester (8) is installed on the top outer wall of the slurry container (7).

10. The device for testing the adhesion strength of underwater non-dispersible grouting material in the surrounding rock of a tunnel in a water-rich fault zone according to claim 1, characterized in that, A stirring rack 2 (16) is fixedly connected to one side of the outer wall of the transmission rod (5). The stirring rack 2 (16) is adapted to the size of the slurry container (7). The lifting plate (23) is slidably connected to the top inner wall of the preparation container (4).

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