Visual test system and method for variable-temperature dynamic-water coarse fracture grouting

Abstract

The invention relates to a variable-temperature dynamic-water coarse fracture grouting visual test system which comprises a visual simulation platform, and an artificial protolith is arranged in the visual simulation platform and used for simulating a coarse fracture; the grouting system is communicated with the visual simulation platform, and the grouting system is used for injecting grout into the visual simulation platform so that the grout can enter the rough fracture; the pressurizing system is communicated with the visual simulation platform and is used for injecting variable-temperature flowing water into the visual simulation platform, and pressure is provided for slurry entering the rough fracture through the variable-temperature flowing water; and the acquisition system is arranged in the visual simulation platform. On one hand, the device is used for researching the flow rule of the slurry under the static water or dynamic water condition, the diffusion rule of the slurry under different water environments is obtained through comparison, on the other hand, the diffusion rule of the slurry under the dynamic water condition and different roughness is researched, the field grouting condition is truly simulated, and the more accurate slurry diffusion rule is obtained.

Description

Technical Field

[0001] The invention belongs to the technical field of geotechnical engineering and mining engineering, and in particular relates to a variable temperature and dynamic water rough fracture grouting visualization test system and method. Background Art

[0002] Grouting is an efficient reinforcement technology and has been widely used in the reinforcement of jointed rock mass in geotechnical engineering. Ideally, grouting works better in dry or hydrostatic environments. However, flowing water such as seepage and water inrush usually occurs in underground spaces, which makes the slurry injected into rock cracks susceptible to water erosion. The residual slurry morphology is significantly affected by crack roughness and shear dilatancy. The increase in rock roughness will also reduce the amount of grouting injected into the cracks. The indoor visual grouting simulation test is one of the most intuitive and effective research methods. By adjusting the main factors affecting grouting: grouting medium, grouting materials, grouting environment, etc., the on-site grouting conditions are restored to the greatest extent, so as to obtain the slurry migration and diffusion laws under different grouting conditions, providing theoretical support for on-site grouting.

[0003] The dynamic water environment is a key factor affecting the diffusion of slurry. Therefore, it is an urgent problem to develop a method that can simulate the dynamic water environment and study the diffusion law of slurry in cracks under dynamic water conditions and different roughness to meet the needs of different application scenarios. Summary of the invention

[0004] The purpose of the present invention is to provide a variable temperature and dynamic water rough fracture grouting visualization test system and method, which is used to study the flow law of slurry under static water or dynamic water conditions, and obtain the diffusion law of slurry in different water environments through comparison; on the other hand, the diffusion law of slurry under dynamic water conditions and different roughness is studied, and the on-site grouting conditions are truly simulated to obtain more accurate slurry diffusion law.

[0005] To achieve the above object, the present invention provides the following scheme: a variable temperature water rough fracture grouting visualization test system, comprising

[0006] A visual simulation platform, in which artificial original rock is arranged to simulate rough fractures;

[0007] A grouting system, connected to the visual simulation platform, and used for injecting slurry into the visual simulation platform so that the slurry enters the rough cracks;

[0008] A pressurizing system is connected to the visual simulation platform, and is used to inject variable temperature flowing water into the visual simulation platform to provide pressure to the slurry entering the rough cracks through the variable temperature flowing water;

[0009] The acquisition system is used to obtain the grouting pressure data of the grouting system, the fracture opening data of the visual simulation platform, the roughness data of the artificial original rock, and the flowing water data of the pressurization system.

[0010] Preferably, the grouting system and the pressurizing system are both connected to a pressurizing component via an air injection pipe.

[0011] Preferably, the pressurizing system includes a heating water tank, an inlet end of the heating water tank is connected to the air injection pipe, an outlet end of the heating water tank is connected to one end of a water injection pipe, and the other end of the water injection pipe is connected to the visual simulation platform.

[0012] Preferably, the inlet end of the heating water tank is provided with a pressure relief valve, a heating water tank air injection port, and a heating water tank water injection port, the outlet end of the heating water tank is provided with a water control valve and a liquid pressure gauge, and the heating water tank is provided with a control cabinet, and the control cabinet is provided with a display screen, a temperature control device, and a power switch.

[0013] Preferably, the grouting system comprises a slurry tank, an inlet end of the slurry tank is connected to the gas injection pipe, an outlet end of the slurry tank is connected to one end of the grouting pipe, and the other end of the grouting pipe is connected to the visual simulation platform.

[0014] Preferably, the inlet end of the slurry tank is provided with a slurry tank air injection port, a pressure gauge, a slurry tank water injection port, and a slurry filling port, and the inlet end of the slurry tank is provided with a slurry control valve and a slurry outlet.

[0015] Preferably, the pressurizing component comprises an air pump, the outlet end of the air pump is connected to the gas injection pipe, and the air pump is provided with a gas pressure regulating valve, a gas flow meter, and a voltage stabilizer.

[0016] Preferably, the visual simulation platform includes a lower base plate, an upper cover layer is arranged above the lower base plate, a sealed test space is formed between the upper cover layer and the lower base plate, the artificial rock is installed in the sealed space, and the sealed space is connected to the grouting system and the pressurization system.

[0017] Preferably, the acquisition system includes a first pressure sensor, an infrared temperature compensation device, and a second pressure sensor. The first pressure sensor, the infrared temperature compensation device, and the second pressure sensor are arranged in a test space. The first pressure sensor and the second pressure sensor are communicatively connected to a pressure sensor analyzer, and the pressure sensor analyzer and the infrared temperature compensation device are communicatively connected to a computer.

[0018] A test method for a variable temperature and dynamic water rough fracture grouting visualization test system comprises the following steps:

[0019] The variable temperature flowing water is injected into the rough fractures in the visualization simulation platform through the pressurization system;

[0020] injecting grout into the rough fractures into which the variable temperature flowing water is injected through the grouting system;

[0021] The grouting pressure data of the grouting system, the fracture opening data of the visual simulation platform, the roughness data of the artificial original rock, and the flowing water data of the pressurization system are obtained through the acquisition system;

[0022] The grouting pressure data of the grouting system, the fracture opening data of the visual simulation platform, the roughness data of the artificial original rock, and the flowing water data of the pressurized system were analyzed to obtain the functional relationship between the grouting pressure data of the grouting system, the fracture opening data of the visual simulation platform, the roughness data of the artificial original rock, and the flowing water data of the pressurized system and the slurry diffusion radius.

[0023] Compared with the prior art, the present invention has the following advantages and technical effects:

[0024] 1. The grouting system can provide stable grouting pressure, which can be adjusted arbitrarily from 0 to 1.2 MPa, and can simulate the effect of different grouting pressures on slurry diffusion;

[0025] 2. The visual simulation platform can simulate the effect of different original rock roughness on slurry diffusion by replacing artificial original rocks with different roughness;

[0026] 3. The pressurization system can adjust different water pressures to simulate the real grouting environment and study the effect of water flow velocity on slurry diffusion;

[0027] 4. The visual simulation platform can visually monitor the dynamic migration process of the slurry during the grouting process. At the same time, the acquisition system can realize dynamic monitoring of pressure parameters, which provides favorable conditions for studying the diffusion and deposition mechanism of the slurry;

[0028] 5. The visual simulation platform can change the crack opening and simulate the effect of different crack openings on slurry diffusion;

[0029] 6. The water temperature can be adjusted through the pressurization system, which can simulate the effect of different water temperatures on slurry diffusion in deep rock formations;

[0030] 7. It can simulate the fracture grouting process under the conditions of dynamic water, different fracture openings and different roughness, and truly and accurately simulate the migration and evolution process of slurry in rock fractures. The test results are closer to actual engineering than numerical simulations. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor:

[0032] Figure 1 It is an overall schematic diagram of the present invention;

[0033] Figure 2 It is a schematic diagram of the visual simulation platform of the present invention;

[0034] Figure 3 It is a schematic diagram of the grouting system of the present invention;

[0035] Figure 4 This is a schematic diagram of the placement platform of the present invention;

[0036] Figure 5 It is a schematic diagram of the pressurization system of the present invention;

[0037] Figure 6 It is a schematic diagram of Barton roughness simulation of the present invention;

[0038] Figure 7 It is a schematic diagram of the three-dimensional rough grinding surface of the present invention.

[0039] Among them, 1. Computer; 2. Pressure sensor analyzer; 3. Camera; 4. Data line; 5. First pressure sensor; 6. Infrared temperature compensation device; 7. Steel frame; 8. Grouting hole; 9. Water injection hole; 10. Grouting pipe; 11. Visual simulation platform; 12. Water pipe joint; 13. Water injection pipe; 14. Liquid flow meter; 15. Water control valve; 16. Liquid pressure gauge; 17. Heating water tank; 18. Pressure relief valve; 19. Heating water tank air injection port; 20. Heating water tank water injection port; 21 , display screen; 22. temperature control device; 23. power switch; 24. gas injection pipe; 25. gas pressure regulating valve; 26. gas flow meter; 27. voltage stabilizer; 28. air pump; 29. ​​slurry tank; 30. slurry tank gas injection port; 31. pressure gauge; 32. slurry tank water injection port; 33. slurry filling port; 34. slurry control valve; 35. slurry outlet; 36. fixing bolt; 37. second pressure sensor; 38. slurry discharge trough; 39. upper cover layer; 40. lower base plate; 41. artificial original rock. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0042] Reference Figures 1 to 7 As shown, the present invention provides a variable temperature and dynamic water rough fracture grouting visualization test system, including

[0043] A visual simulation platform 11, an artificial original rock 41 is arranged in the visual simulation platform 11 for simulating rough fractures;

[0044] A grouting system, connected to the visual simulation platform 11, and used for injecting slurry into the visual simulation platform 11 so that the slurry enters the rough cracks;

[0045] A pressurizing system is connected to the visualization simulation platform 11, and is used to inject variable temperature flowing water into the visualization simulation platform 11, so as to provide pressure to the slurry entering the rough cracks through the variable temperature flowing water;

[0046] The acquisition system is used to obtain the grouting pressure data of the grouting system, the fracture opening data of the visual simulation platform, the roughness data of the artificial original rock, and the flowing water data of the pressurization system.

[0047] To further optimize the solution, the grouting system and the pressurizing system are both connected to a pressurizing component via an air injection pipe 24 .

[0048] To further optimize the solution, the pressurizing system includes a heating water tank 17 , the inlet end of the heating water tank 17 is connected to the air injection pipe 24 , the outlet end of the heating water tank 17 is connected to one end of the water injection pipe 13 , and the other end of the water injection pipe 13 is connected to the visual simulation platform 11 .

[0049] To further optimize the solution, a pressure relief valve 18, a heating water tank air injection port 19, and a heating water tank water injection port 20 are provided at the inlet end of the heating water tank 17, a water control valve 15 and a liquid pressure gauge 16 are provided at the outlet end of the heating water tank 17, and a control cabinet is provided on the heating water tank 17, and a display screen 21, a temperature control device 22, and a power switch 23 are provided on the control cabinet.

[0050] The heating water tank air injection port 19 of the heating water tank 17 is connected to the air pump 28 through the air injection pipe 24, the water injection pipe 13 connects the water outlet of the heating water tank 17 and the water injection hole 9 of the visual simulation platform 11, and the water injection pipe 13 is provided with a liquid pressure gauge 16, a water control valve 15 and a liquid flow meter 14 in sequence along the liquid flow direction.

[0051] To further optimize the solution, the grouting system includes a slurry tank 29 , an inlet end of the slurry tank 29 is connected to the gas injection pipe 24 , an outlet end of the slurry tank 29 is connected to one end of the grouting pipe 10 , and the other end of the grouting pipe 10 is connected to the visual simulation platform 11 .

[0052] To further optimize the solution, the inlet end of the slurry tank 29 is provided with a slurry tank air injection port 30, a pressure gauge 31, a slurry tank water injection port 32, and a slurry filling port 33, and the inlet end of the slurry tank 29 is provided with a slurry control valve 34 and a slurry outlet 35.

[0053] The top of the slurry tank 29 is provided with a pressure relief valve 18, a slurry tank gas injection port 30, a pressure gauge 31, a slurry tank water injection port 32 and a slurry filling port 33 with a sealing ring. The gas outlet of the air pump 28 is connected to the slurry tank gas injection port 30 of the slurry tank 29 through the gas injection pipe 24. The slurry outlet 35 of the slurry tank 29 is connected to the grouting hole 8 of the visualization simulation platform 11 through the grouting pipe 10. The grouting pipe 10 is provided with a slurry control valve 34 and a liquid flow meter 14 along the liquid flow direction. The safe bearing pressure of the chamber of the slurry tank 29 is 1.5MPa. The pressure relief valve 18 is installed on the slurry tank gas injection port 30 of the slurry tank 29. When the pressure exceeds the safety threshold of the slurry tank 29, the pressure is automatically relieved. The air pump 28 is provided with a gas pressure regulating valve 25, a gas flow meter 26 and a voltage stabilizer 27. The air pump 28 can provide an air pressure of 0-1.2MPa.

[0054] To further optimize the solution, the pressurizing component includes an air pump 28 , the outlet end of the air pump 28 is connected to the gas injection pipe 24 , and the air pump 28 is provided with a gas pressure regulating valve 25 , a gas flow meter 26 , and a voltage stabilizer 27 .

[0055] The outlet end of the air pump 28 is connected to the slurry tank gas injection port 30 at the top of the slurry tank 29 through the gas injection pipe 24. A pressure stabilizer 27, a gas flow meter 26 and a gas pressure regulating valve 25 are sequentially arranged on the gas injection pipe 24 along the gas flow direction.

[0056] According to a further optimization scheme, the visualization simulation platform 11 includes a lower base plate 40, an upper cover layer 39 is arranged above the lower base plate 40, a sealed test space is formed between the upper cover layer 39 and the lower base plate 40, an artificial original rock 41 is installed in the sealed space, and the sealed space is connected to the grouting system and the pressurization system.

[0057] Furthermore, a slurry drainage trough 38 is provided at one end of the visualization simulation platform 11 away from the grouting system and the pressurizing system, so as to facilitate the discharge of water and slurry from the visualization simulation platform 11 after the test.

[0058] The visualization simulation platform 11 includes an upper cover layer 39, a lower bottom plate 40 and a plurality of acrylic strips. The upper cover layer 39 and the lower bottom plate 40 are acrylic rectangular plates with dimensions of 2200 mm × 600 mm × 20 mm. The dimensions of the acrylic strips are 2200 mm × 50 mm × 10 mm. The upper cover layer 39 and the lower bottom plate 40 are arranged horizontally along the left-right direction. The acrylic strips are arranged between the upper cover layer 39 and the lower bottom plate 40 and at the right boundary. The thickness of the acrylic strips is the same as the height of the simulated crack. By replacing acrylic strips of different thicknesses, different crack openings can be simulated. The upper cover layer 39 and the lower bottom plate 40 are fixed with bolts 36 through the through holes on the acrylic strips. A plurality of circular holes spaced apart on the left and right sides are provided in the middle of the lower base plate 40, each of which is equipped with a second pressure sensor 37 and an infrared temperature compensation device 6, the pressure sensor analyzer 2 is respectively connected to each second pressure sensor 37 through a data line 4, the computer 1 is connected to the pressure sensor analyzer 2 through a data line 4, the infrared temperature compensation device 6 is connected to the computer 1 through wireless transmission, a water injection hole 9 is provided on the right side of the visual simulation platform 11, the water injection hole 9 is connected to the pressurization system through a water injection pipe 13 and a water pipe joint 12, a grouting hole 8 is provided on the lower base plate 40 on the right side of the visual simulation platform 11, and the grouting hole 8 is connected to the slurry outlet 35 at the bottom of the slurry tank 29 through a grouting pipe 10.

[0059] The visualization simulation platform 11 is placed on a carrying device, which includes a steel frame 7 and a carrying platform. The steel frame 7 is horizontally arranged, and the steel frame 7 is formed by four square steel pipes welded end to end. The bottom of the steel frame 7 is fixedly supported on the ground by columns on all sides. The carrying platform is horizontally arranged in the steel frame 7, and the carrying platform is a steel plate. The middle part of the carrying platform is concave downward and is integrally formed with a rectangular groove of the same shape as the lower base plate 40, and the visualization simulation platform 11 is embedded in the rectangular groove.

[0060] To further optimize the scheme, the acquisition system includes a first pressure sensor 5, an infrared temperature compensation device 6, and a second pressure sensor 37. The first pressure sensor 5, the infrared temperature compensation device 6, and the second pressure sensor 37 are arranged in the test space. The first pressure sensor 5 and the second pressure sensor 37 are communicatively connected to the pressure sensor analyzer 2, and the pressure sensor analyzer 2 and the infrared temperature compensation device 6 are communicatively connected to the computer 1.

[0061] Furthermore, a camera 3 is also provided on the side of the visualization simulation platform 11 .

[0062] A test method for a variable temperature and dynamic water rough fracture grouting visualization test system comprises the following steps:

[0063] Injecting variable temperature flowing water into the rough fractures in the visualization simulation platform 11 through a pressurization system;

[0064] injecting grout into the rough fractures into which the variable temperature flowing water is injected through the grouting system;

[0065] The grouting pressure data of the grouting system, the fracture opening data of the visual simulation platform, the roughness data of the artificial original rock, and the flowing water data of the pressurization system are obtained through the acquisition system;

[0066] The grouting pressure data of the grouting system, the fracture opening data of the visual simulation platform, the roughness data of the artificial original rock, and the flowing water data of the pressurized system were analyzed to obtain the functional relationship between the grouting pressure data of the grouting system, the fracture opening data of the visual simulation platform, the roughness data of the artificial original rock, and the flowing water data of the pressurized system and the slurry diffusion radius.

[0067] The Barton curve was imported into CAD, and then different crack roughnesses were drawn at a ratio of 1:1. Then, different roughnesses were cut on several acrylic plates with a size of 2200mm×50mm×10mm by a laser cutter. The 3D printing data was generated by Ogilvie's method, which was based on the statistics of actual rock cracks. The original data for modeling the 3D printing model was point cloud data with a resolution of 1024×1024. The resolution of the point cloud data was reprocessed by Matlab programming and converted into a resolution that met the size of the test platform. After processing, the resolution of the point cloud data became 256×1024, that is, the point spacing of the generated surface was 1.95mm. A three-dimensional rough-ground surface with a size of 2200mm×50mm×10mm was printed using high-toughness photosensitive resin, and the acrylic plate and the three-dimensional rough-ground surface were evenly pasted on the upper cover layer 39 and the lower base plate 40. The visual simulation platform 11 composed of the upper cover layer 39 and the lower base plate 40 was installed on the steel frame 7. According to the design principle diagram, the water injection hole 9 on the side of the visualization simulation platform 11 is connected to the heating water tank 17 through the water injection pipe 13 and the water pipe joint 12, the slurry outlet 35 of the slurry tank 29 is connected to the grouting hole 8 of the visualization simulation platform 11 through the grouting pipe 10, the slurry tank gas injection port 30 of the slurry tank 29 is connected to the gas outlet of the air pump 28 through the gas injection pipe 24, the first pressure sensor 5, the pressure sensor analyzer 2 and the computer 1 are connected through the data line 4, and the infrared temperature compensation device 6 is connected to the computer 1 through wireless transmission. Acrylic long strip gaskets of different thicknesses are made to simulate different crack openings.

[0068] Add water to the heating water tank 17, start the heating water tank 17, set the temperature, observe through the display screen 21 to reach the set value, start the air pump 28 to inject pressure into the heating water tank 17, observe through the liquid pressure gauge 16 that the pressure reaches the set water injection pressure, open the water control valve 15 to control the water flow rate, and inject water into the visualization simulation platform 11 through the water injection pipe 13 to form a flowing water environment with different temperatures; if simulating waterless conditions, this step is omitted.

[0069] Mix cement slurry according to the designed grouting parameters and pour it into the slurry tank 29; fix the slurry tank 29, check the normality of each instrument and the tightness of the pipeline; open the air pump 28 to inject air into the slurry tank 29, and after the pressure gauge 31 is stable, open the slurry control valve 34 to inject the slurry in the slurry tank 29 into the visual simulation platform 11 through the grouting pipe 10 according to the set grouting pressure. During the grouting process, the grouting pressure and flow rate are recorded by the liquid flow meter 14 and the pressure gauge 31, the first pressure sensor 5 records the change of grouting pressure, and the camera 3 is turned on to take pictures at intervals throughout the process to record the diffusion range and shape of the slurry; when the slurry fills the cracks in the plate, stop grouting, close the slurry control valve 34 and the water control valve 15; disassemble the crack device and clean it.

[0070] According to the test plan, the grouting conditions are changed and the above operations are repeated; the flow law of slurry in cracks under dynamic water or water-free conditions at different temperatures, different roughness and different crack opening conditions can be simulated, and the quantitative relationship between the slurry diffusion radius and the grouting pressure, crack opening, crack roughness and flowing water can be studied.

[0071] After the test is completed, the test data is sorted out, and the migration and diffusion laws of the slurry are analyzed through the photographed slurry migration process and the pressure data on the computer 1.

[0072] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0073] The embodiments described above are only descriptions of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope of the present invention.

Claims

1. A variable temperature and dynamic water rough fracture grouting visualization test system, characterized in that: include A visual simulation platform (11), wherein the artificial original rock (41) is arranged in the visual simulation platform (11) for simulating rough fractures; A grouting system is connected to the visual simulation platform (11), and the grouting system is used to inject slurry into the visual simulation platform (11) so that the slurry enters the rough cracks; A pressurizing system is connected to the visual simulation platform (11), and the pressurizing system is used to inject variable temperature flowing water into the visual simulation platform (11), so as to provide pressure to the slurry entering the rough cracks through the variable temperature flowing water; The acquisition system is used to obtain the grouting pressure data of the grouting system, the fracture opening data of the visual simulation platform, the roughness data of the artificial original rock, and the flowing water data of the pressurization system.

2. A variable temperature and dynamic water rough fracture grouting visualization test system according to claim 1, characterized in that: The grouting system and the pressurizing system are both connected to a pressurizing component via an air injection pipe (24).

3. A variable temperature and dynamic water rough fracture grouting visualization test system according to claim 2, characterized in that: The pressurizing system comprises a heating water tank (17), the inlet end of the heating water tank (17) is connected to the air injection pipe (24), the outlet end of the heating water tank (17) is connected to one end of the water injection pipe (13), and the other end of the water injection pipe (13) is connected to the visual simulation platform (11).

4. A variable temperature and dynamic water rough fracture grouting visualization test system according to claim 3, characterized in that: The inlet end of the heating water tank (17) is provided with a pressure relief valve (18), a heating water tank air injection port (19), and a heating water tank water injection port (20); the outlet end of the heating water tank (17) is provided with a water control valve (15) and a liquid pressure gauge (16); the heating water tank (17) is provided with a control cabinet, and the control cabinet is provided with a display screen (21), a temperature control device (22), and a power switch (23).

5. The variable temperature and dynamic water rough fracture grouting visualization test system according to claim 2 is characterized in that: The grouting system comprises a slurry tank (29), the inlet end of the slurry tank (29) is connected to the gas injection pipe (24), the outlet end of the slurry tank (29) is connected to one end of a grouting pipe (10), and the other end of the grouting pipe (10) is connected to the visual simulation platform (11).

6. A variable temperature and dynamic water rough fracture grouting visualization test system according to claim 5, characterized in that: The inlet end of the slurry tank (29) is provided with a slurry tank air injection port (30), a pressure gauge (31), a slurry tank water injection port (32), and a slurry filling port (33); the inlet end of the slurry tank (29) is provided with a slurry control valve (34) and a slurry outlet (35).

7. The variable temperature and dynamic water rough fracture grouting visualization test system according to claim 2 is characterized in that: The pressurizing component comprises an air pump (28), the outlet end of the air pump (28) is connected to the gas injection pipe (24), and the air pump (28) is provided with a gas pressure regulating valve (25), a gas flow meter (26), and a voltage stabilizer (27).

8. The variable temperature and dynamic water rough fracture grouting visualization test system according to claim 1 is characterized in that: The visual simulation platform (11) comprises a lower base plate (40), an upper cover layer (39) is arranged above the lower base plate (40), a sealed test space is formed between the upper cover layer (39) and the lower base plate (40), the artificial original rock (41) is installed in the sealed space, and the sealed space is connected to the grouting system and the pressurization system.

9. A variable temperature and dynamic water rough fracture grouting visualization test system according to claim 8, characterized in that: The acquisition system comprises a first pressure sensor (5), an infrared temperature compensation device (6), and a second pressure sensor (37); the first pressure sensor (5), the infrared temperature compensation device (6), and the second pressure sensor (37) are arranged in a test space; the first pressure sensor (5) and the second pressure sensor (37) are communicatively connected to a pressure sensor analyzer (2); and the pressure sensor analyzer (2) and the infrared temperature compensation device (6) are communicatively connected to a computer (1).

10. A test method for a variable temperature and dynamic water rough fracture grouting visualization test system according to any one of claims 1 to 9, characterized in that: The following steps are involved: Injecting variable temperature flowing water into the rough cracks in the visualization simulation platform (11) through a pressurization system; Inject grout into the rough fractures injected with variable temperature flowing water through the grouting system; The grouting pressure data of the grouting system, the fracture opening data of the visual simulation platform, the roughness data of the artificial original rock, and the flowing water data of the pressurization system are obtained through the acquisition system; The grouting pressure data of the grouting system, the fracture opening data of the visual simulation platform, the roughness data of the artificial original rock, and the flowing water data of the pressurized system were analyzed to obtain the functional relationship between the grouting pressure data of the grouting system, the fracture opening data of the visual simulation platform, the roughness data of the artificial original rock, and the flowing water data of the pressurized system and the slurry diffusion radius.

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