Manufacturing device, manufacturing method and application of full-transparent rock sample

Abstract

The invention provides a manufacturing device, a manufacturing method and application of a full-transparent rock sample. The manufacturing device comprises a vacuum bin, a material static stirring device, a base oscillation device and a sample preparation mold. Epoxy resin, a curing agent and an additive are injected and mixed to generate a transparent liquid cementing agent, and the transparent liquid cementing agent is injected into a sample preparation mold to finally obtain a completely transparent rock sample. According to the invention, the defects of the existing transparent material in the aspects of test conditions and transparency are overcome, a full-transparent rock sample with mechanical properties highly close to those of natural rock can be prepared at normal temperature, and an important technical support is provided for researching rock mechanical behaviors and fluid flow characteristics; and a new method and technical support are provided for research and development of building materials and structures.

Description

Technical Field

[0001] The invention relates to the field of civil engineering material research, and in particular to a manufacturing device, a manufacturing method and an application of a fully transparent rock sample. Background Art

[0002] Transparent rock is a new type of experimental material used in geotechnical engineering, petroleum engineering and geological disaster research. Because of its certain transparency and controllable mechanical properties, it is widely used to study complex phenomena such as rock fracture, crack expansion, and pore fluid migration. It simulates the physical properties of natural rocks and has a certain degree of transparency, allowing researchers to study the mechanical behavior of rocks and fluid flow characteristics by observing changes inside transparent rocks. Compared with traditional indirect measurement methods such as CT, nuclear magnetic resonance, and acoustic emission, transparent rock can directly observe the crack expansion and strain distribution inside the rock through the naked eye or optical equipment, greatly improving the intuitiveness and accuracy of the experimental results. Therefore, it provides a new experimental means to solve some key problems in rock mechanics, such as the formation and evolution of fracture networks and the seepage path of fluids inside rocks, filling the problems that are difficult to observe through physical objects in traditional rock mechanics experiments.

[0003] Although transparent rocks have significant application potential, their development also faces some challenges. The first is the selection and preparation of materials. The mechanical properties of transparent rocks need to match those of natural rocks as closely as possible, which requires transparent materials to not only have sufficient strength and toughness, but also have a density and elastic modulus similar to that of actual rocks. However, current transparent materials still have deficiencies in strength and durability. Secondly, the experimental preparation environment of transparent rocks is also an important problem in the design of transparent rocks. At present, the preparation and experimental applications of many transparent rocks are usually carried out under low temperature and stable experimental conditions. This limitation stems from the fact that transparent materials may deform, degrade in performance, or even fail in complex environments such as high temperature and high pressure, which affects the accuracy and reliability of experimental data.

[0004] Therefore, it is of great significance to develop a method and process for preparing fully transparent concrete at room temperature. Summary of the invention

[0005] The purpose of the present invention is to provide a manufacturing device, a manufacturing method and an application of a fully transparent rock sample to solve the problems existing in the prior art.

[0006] The technical solution adopted to achieve the purpose of the present invention is as follows: a device for making a fully transparent rock sample, including a vacuum chamber, a vacuum device, a material static stirring device and a sample making mold.

[0007] The vacuum chamber is a rectangular box with an open upper end. The sample preparation mold is arranged in the inner cavity of the vacuum chamber. The upper opening of the vacuum chamber is sealed by a vacuum device and a material static stirring device.

[0008] The vacuum device comprises a U-shaped block structure and a vacuum tube. A cavity is encapsulated in the U-shaped block structure. An exhaust hole is arranged on the upper surface of the vacuum device. The exhaust hole connects the cavity with the outside. One end of the vacuum tube is connected to an external vacuum instrument, and the other end passes through the vacuum device and extends into the inner cavity of the vacuum chamber. A vacuum switch is arranged on the pipeline of the vacuum tube.

[0009] The material static stirring device is arranged above the vacuum device, covering the opening on the upper surface of the U-shaped block structure. The vacuum bin, the material static stirring device and the vacuum device enclose a closed chamber. The material static stirring device includes a stirring bin, an external protection bin, a grouting pipe I, a grouting pipe II and a grouting pipe III. Heating copper wires are wound around the pipe bodies of the grouting pipes I, II and III. Valves are arranged on the pipelines of the grouting pipes I and II. The external protection bin covers the stirring bin. A stirring device is arranged in the stirring bin. The grouting pipes I and II are arranged beside the external protection bin. The grouting port of the grouting pipe I is connected to the epoxy resin grouting device, and the grouting outlet passes through the external protection bin and extends into the inner cavity of the stirring bin. The grouting port of the grouting pipe I is connected to the epoxy resin grouting device, and the grouting outlet passes through the external protection bin and extends into the inner cavity of the stirring bin. The grouting port of the grouting pipe II is connected to the curing agent and additive grouting device, and the slurry outlet passes through the external protection bin and extends into the inner cavity of the mixing bin. The grouting pipe III is arranged below the external protection bin. The grouting port of the grouting pipe III is accommodated in the mixing bin, and the slurry outlet passes through the external protection bin and extends into the inner cavity of the vacuum bin. The grouting port of the grouting pipe III is provided with a freely closing bin door. The slurry outlet of the grouting pipe III is located above the sample preparation mold.

[0010] During operation, epoxy resin and curing agent are injected into the mixing chamber. The stirring device starts to stir the mixed liquid to obtain a transparent liquid binder. The transparent liquid binder is injected into the sample preparation mold through the grouting pipe. After the transparent liquid binder solidifies, a transparent rock is obtained.

[0011] Furthermore, the vacuum chamber comprises a bottom plate and four side plates. The side plates are provided with hollow windows. A tempered glass door is embedded in the hollow windows.

[0012] Furthermore, it also includes a base oscillating device. The vacuum chamber is placed on the base oscillating device. During operation, the base oscillating device realizes a vibration function to reduce bubbles during the grouting process.

[0013] Furthermore, a leak-proof gasket is provided at the connection between the base oscillating device and the vacuum chamber.

[0014] Furthermore, the sample making mold is made of silicone material.

[0015] Furthermore, the epoxy resin is epoxy resin E51, the curing agent is modified methyl hexahydrophthalic anhydride, and the additive is polyethylene glycol PEG.

[0016] Furthermore, an operation display screen is provided on the external protection chamber. A visual sensing unit is arranged in the mixing chamber. An air pressure sensing unit is arranged in the vacuum chamber. The curing agent and additive grouting device, the air pressure sensing unit, the visual sensing unit, the epoxy resin grouting device, the external vacuum instrument, the heating copper wire, and the free closing chamber door are all electrically connected to the operation display screen.

[0017] The present invention also discloses a method for making a fully transparent rock sample according to the above-mentioned making device, comprising the following steps:

[0018] 1) Determine the mixing ratio of epoxy resin, curing agent and additives.

[0019] 2) Apply release agent evenly on the inner wall of the sample making mold.

[0020] 3) Place the sample preparation mold into the vacuum chamber and fix it in the vacuum chamber.

[0021] 4) Two grouting pipes are connected to the epoxy resin grouting device and the curing agent and additive grouting device respectively. Turn on the heating switch of the grouting pipe to heat the grouting pipe.

[0022] 5) Open the valve and inject epoxy resin, curing agent and additives into the inner cavity at different rates according to the mixing ratio. After the grouting starts, turn on the stirring device synchronously and start stirring the mixed liquid to obtain a transparent liquid binder. After sufficient epoxy resin, curing agent and additives are injected, close the valve and remove the grouting device. Stop stirring when the mixing chamber shows obvious transparent liquid binder through the operating display screen and there is no flocculent floating material inside.

[0023] 6) Turn on the heating switch of the grouting pipe to heat the grouting pipe. Simultaneously connect the electromagnetic exciter to the external alternating power supply. Open the door to allow the transparent liquid binder to be injected into the sample mold along the grouting pipe. After the grouting begins, turn on the external alternating power supply to vibrate the sample mold. When the transparent liquid binder appears in the sample mold and the liquid level does not drop significantly after continued vibration, close the door.

[0024] 7) Close the vacuum chamber to keep it strictly sealed, connect the vacuum tube to the external vacuum instrument, and turn on the vacuum switch to start evacuating the vacuum chamber. Observe the air pressure in the vacuum chamber reach the specified value through the operating display, stop evacuating and maintain the negative pressure, and turn off the external alternating power supply to stop vibrating. After the negative pressure is maintained for 24 hours, remove the negative pressure, separate the vacuum instrument from the vacuum tube, and separate the electromagnetic exciter from the external alternating power supply. Keep the sample preparation mold at room temperature for 7 days until the transparent rock is formed. Open the vacuum chamber and take out the sample preparation mold. Peel off the sample preparation mold to obtain a fully transparent rock sample.

[0025] 8) Changing the mass ratio of epoxy resin, curing agent and additive, repeating steps 1) to 7) to obtain fully transparent rock samples with different mechanical properties.

[0026] The invention also discloses the application of the fully transparent rock sample prepared by the above-mentioned preparation method, which is used for building a transparent lighting structure.

[0027] The present invention also discloses the application of the fully transparent rock sample obtained by the above-mentioned production method, which is combined with PIV and DIC image processing technology to study the three-dimensional crack expansion mechanism of real rock mass, hydraulic fracturing, rough joint surface shear, seepage characteristics and rock blasting characteristics, and other destruction processes for accurate visualization.

[0028] The technical effects of the present invention are unquestionable:

[0029] A. Aiming at the problems that the transparency and durability of existing transparent rocks are poor, and the color of existing transparent rocks changes after preparation, a method and process for preparing fully transparent rocks can obtain fully transparent rock test blocks with mechanical properties close to those of natural rocks. It can provide important technical support for future building materials and structures.

[0030] B. By determining the new epoxy resin and curing agent and introducing additives, while determining the mutual ratio, the situation where the transparency of the transparent rock is weakened after adding the additives is avoided, and the transparency of the three-phase mixed liquid after curing is greatly improved.

[0031] C. Currently, transparent rocks with high brittleness are often prepared at low temperatures, that is, the sample preparation and subsequent test processes must be carried out at low temperatures. The present invention uses relatively new epoxy resins, acid anhydride curing agents and completely transparent additives, which can make transparent rocks reach relevant brittleness at room temperature, reducing the subsequent restrictions on laboratory conditions.

[0032] D. The multifunctional sample preparation device can realize the mixing and stirring of three different reagents, as well as the grouting of transparent liquid binder. At the same time, it can meet the vibration and vacuum defoaming in the preparation of transparent rocks to improve the transparency of the sample.

[0033] E. The multifunctional sample preparation device separates the mixing chamber from the vacuum chamber, so that three different reagents can be injected into the mixing chamber through relatively independent grouting pipes, ensuring that they are fully stirred and fused in the mixing chamber to ensure the transparency and integrity of the transparent liquid binder. The surface of the grouting pipe is covered with heating copper wire to ensure that the epoxy resin, curing agent and additives are liquid during the grouting process to prevent clogging of the grouting pipe.

[0034] F. The bottom plate can realize the vibration function to reduce bubbles in the grouting process and can be used repeatedly. There are a large number of exhaust holes in the vacuum device above the vacuum chamber to ensure the heat dissipation of the vacuum device instruments and the transparent rock during the solidification process.

[0036] G. The sample mold is made of biodegradable polymer silicone. Compared with traditional plastic molds, it can better reduce plastic pollution and help reduce environmental pollution during production and use. The sample mold made of silicone has strong plasticity and can be customized according to the needs of the actual sample to meet the test requirements.

[0037] H. The electromagnetic vibrator can help to expel the air remaining in the sample mold during the grouting process.

[0038] I. The fully transparent rock prepared can be used to build transparent lighting structures; it can also be combined with PIV and DIC image processing technology to study the three-dimensional crack propagation mechanism of real rock mass, hydraulic fracturing, rough joint surface shear, seepage characteristics and rock blasting characteristics, and other destruction processes for accurate visualization. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is the overall schematic diagram of the multifunctional sample making mold;

[0040] Figure 2 is a cross-sectional view of the vacuum device;

[0041] Figure 3 This is the layout diagram of static mixing of materials;

[0042] Figure 4 is a schematic diagram of a vacuum device;

[0043] Figure 5 Schematic diagram of the base oscillation device.

[0044] In the figure: tempered glass door 1, control switch 2, base vibration device 3, vacuum chamber 4, static stirring device 5, exhaust hole 6, vacuum device 7, grouting pipe 8, vacuum tube 9, operation display 10, electromagnetic exciter 11, grouting pipe 12, stirring blade 13, heating copper wire 14, grouting pipe 15, sample making mold 16, transparent liquid binder 17, electromagnetic exciter 18, bottom plate 19, side plate 20, side plate 21, bottom plate 22, vacuum switch 23, top cover 24, external protection chamber 25, side plate 26, valve 27, leak-proof gasket 28, epoxy resin 29, curing agent 30, additive 31, chamber door 32. DETAILED DESCRIPTION

[0045] The present invention is further described below in conjunction with the embodiments, but it should not be understood that the above subject matter of the present invention is limited to the following embodiments. Without departing from the above technical ideas of the present invention, various substitutions and changes are made according to the common technical knowledge and customary means in the art, which should all be included in the protection scope of the present invention.

[0046] Embodiment 1:

[0047] See also Figure 1 to Figure 4 A device for making a fully transparent rock sample is characterized by comprising a vacuum chamber 4, a vacuum device 7, a material static stirring device 5 and a sample making mold 16.

[0048] The vacuum chamber 4 is a rectangular box with an open upper end. The sample preparation mold 16 is arranged in the inner cavity of the vacuum chamber 4. The upper opening of the vacuum chamber 4 is sealed by a vacuum device 7 and a material static stirring device 5.

[0050] The vacuum device 7 includes a U-shaped block structure and a vacuum tube 9. A cavity is encapsulated in the U-shaped block structure. An exhaust hole is arranged on the upper surface of the vacuum device 7. The exhaust hole connects the cavity with the outside. One end of the vacuum tube 9 is connected to an external vacuum instrument, and the other end passes through the vacuum device 7 and extends into the inner cavity of the vacuum chamber 4. A vacuum switch 23 is arranged on the pipeline of the vacuum tube 9.

[0051] The material static stirring device 5 is arranged above the vacuum device 7, covering the opening on the upper surface of the U-shaped block structure. The vacuum bin 4, the material static stirring device 5 and the vacuum device 7 enclose a closed chamber. The material static stirring device 5 includes a stirring bin 12, an external protection bin 25, a grouting pipe I8, a grouting pipe II80 and a grouting pipe III15. A heating copper wire 14 is wound around the pipe bodies of the grouting pipes I8, II80 and III15. A valve 27 is arranged on the pipelines of the grouting pipes I8 and II80. The external protection bin 25 covers the stirring bin 12. A stirring device 11 is arranged in the stirring bin 12. The grouting pipes I8 and II80 are arranged beside the external protection bin 25. The grouting port of the grouting pipe I8 is connected to the epoxy resin grouting device, and the grouting outlet passes through the external protection bin 25 and extends into the inner cavity of the stirring bin 12. The grouting port of the grouting pipe I8 is connected to the epoxy resin grouting device, and the slurry outlet passes through the external protection bin 25 and extends into the inner cavity of the mixing bin 12. The grouting port of the grouting pipe II80 is connected to the curing agent and additive grouting device, and the slurry outlet passes through the external protection bin 25 and extends into the inner cavity of the mixing bin 12. The grouting pipe III15 is arranged below the external protection bin 25. The grouting port of the grouting pipe III15 is accommodated in the mixing bin 12, and the slurry outlet passes through the external protection bin 25 and extends into the inner cavity of the vacuum bin 4. The grouting port of the grouting pipe III15 is provided with a freely closing bin door 32, which is made of tempered glass and has sufficient strength to withstand external pressure. At the same time, the internal situation can be observed through the bin door. The slurry outlet of the grouting pipe III15 is located above the sample making mold 16.

[0052] During operation, epoxy resin and curing agent are injected into the mixing chamber 12. The stirring device 11 starts to stir the mixed liquid to obtain a transparent liquid binder 17. The transparent liquid binder 17 is injected into the sample preparation mold 16 through the grouting pipe 15. After the transparent liquid binder 17 solidifies, a transparent rock is obtained.

[0053] This embodiment overcomes the shortcomings of existing transparent materials in terms of test conditions and transparency, and can prepare fully transparent rock samples with mechanical properties highly close to those of natural rocks at room temperature, providing important technical support for studying rock mechanical behavior and fluid flow characteristics, and providing new methods and technical support for the research and development of building materials and structures.

[0054] Embodiment 2:

[0055] The main contents of this embodiment are the same as those of the embodiment 1, wherein the vacuum chamber 4 comprises a bottom plate 19 and four side plates 20. The side plates 20 are provided with hollow windows. The tempered glass door 1 is embedded in the hollow windows.

[0056] Embodiment 3:

[0057] The main contents of this embodiment are the same as those of embodiment 1 or 2, wherein it further comprises a base oscillating device 3. The vacuum chamber 4 is placed on the base oscillating device 3. During operation, the base oscillating device 3 realizes a vibrating function to reduce bubbles during the grouting process. Figure 5 A leak-proof gasket 28 is provided at the connection between the base oscillating device 3 and the vacuum chamber 4.

[0058] Embodiment 4:

[0059] The main contents of this embodiment are the same as those of Embodiment 1 or 2, wherein the sample making mold 16 is made of silicone material.

[0060] Embodiment 5:

[0061] The main contents of this embodiment are the same as those of embodiment 1 or 2, wherein the epoxy resin is epoxy resin E51, the curing agent is modified methyl hexahydrophthalic anhydride, and the additive is polyethylene glycol PEG.

[0062] Embodiment 6:

[0063] The main contents of this embodiment are the same as those of Embodiment 1 or 2, wherein an operation display screen 10 is provided on the external protection chamber 25. A visual sensing unit is arranged in the mixing chamber 12. An air pressure sensing unit is arranged in the vacuum chamber 4. The curing agent and additive grouting device, the air pressure sensing unit, the visual sensing unit, the epoxy resin grouting device, the external vacuum instrument, the heating copper wire 14, and the free closing chamber door 32 are all electrically connected to the operation display screen 10. The operation display screen (10) has the function of real-time display of image information from the visual sensing unit and air pressure readings from the air pressure sensing unit, and can ensure that the user can clearly understand the state of the transparent liquid binder (such as whether there are floating objects) and the air pressure of the vacuum chamber through an intuitive image window, a numerical display module and a status prompt system. The display screen has the functions of switching between manual and automatic modes, viewing historical data, and alarm prompts, so as to improve the convenience, accuracy and traceability of the experiment.

[0064] Embodiment 7:

[0065] This embodiment provides a method for making a fully transparent rock sample according to the making device described in embodiments 1 to 6, comprising the following steps:

[0066] 1) Determine the mixing ratio of epoxy resin, curing agent and additives.

[0067] 一种全透明岩石试样的制作装置 、 制作方法及应用 -7-

[0068] 1.1) Use Abbe refractometer to read the refractive index of epoxy resin, curing agent and additives;

[0069] 1.2) After mixing different proportions of epoxy resin, curing agent and additive, the refractive index of each mixture was read using an Abbe refractometer;

[0070] 1.3) Establish the corresponding relationship between the mixing ratio of epoxy resin, curing agent and additives and the refractive index.

[0071] 2) Apply a release agent evenly on the inner wall of the sample preparation mold 16.

[0072] 3) Place the sample preparation mold 16 into the vacuum chamber and fix it in the vacuum chamber.

[0073] 4) Two grouting pipes 12 are connected to epoxy resin grouting device and curing agent and additive grouting device respectively. Turn on the heating switch of grouting pipe 8 to heat the grouting pipe.

[0074] 5) Open valve 27, and inject epoxy resin, curing agent and additive into the inner cavity at different rates according to the mixing ratio. After grouting begins, start stirring device 11 synchronously to stir the mixed liquid to obtain transparent liquid binder 17. After sufficient epoxy resin, curing agent and additive are injected, close valve 27 and remove the grouting device. Stop stirring when the mixing chamber 12 finds that the transparent liquid binder 17 is obviously present through the operating display screen 10 and there is no flocculent floating material inside.

[0075] 6) Turn on the heating switch of the grouting pipe 15 to heat the grouting pipe. Simultaneously connect the electromagnetic exciter 3 to the external alternating power supply. Open the door 32 to allow the transparent liquid binder 17 to be injected into the sample mold 16 along the grouting pipe 15. After the grouting begins, turn on the external alternating power supply to vibrate the sample mold 16. When the transparent liquid binder 17 is clearly visible on the sample mold 16 and the liquid level does not drop significantly after continued vibration, close the door 32.

[0076] 7) Close the vacuum chamber 4 to keep it strictly sealed, connect the vacuum tube 9 to the external vacuum instrument, and turn on the vacuum switch 23 to start evacuating the vacuum chamber. Observe the air pressure in the vacuum chamber by operating the display 10 to reach the specified value, stop evacuating and maintain the negative pressure, and turn off the external alternating power supply to stop vibrating. After the negative pressure is maintained for 24 hours, remove the negative pressure, separate the vacuum instrument from the vacuum tube 9, and separate the electromagnetic exciter 11 from the external alternating power supply. Maintain the sample preparation mold 16 at room temperature for 7 days until the transparent rock is formed. Open the vacuum chamber and take out the sample preparation mold 16. Peel off the sample preparation mold 16 to obtain a fully transparent rock sample.

[0077] 8) Changing the mass ratio of epoxy resin, curing agent and additive, repeating steps 1) to 7) to obtain fully transparent rock samples with different mechanical properties.

[0078] It is worth noting that transparent rock materials have been developed to a certain extent, which can provide a certain reference for the preparation of fully transparent rocks. However, most of them are made of fully transparent resin materials, which have a low brittleness index at room temperature and must reach the required state under low temperature conditions; a few transparent rocks are formed by curing with rosin (RSS) as an additive and epoxy resin and curing agent at room temperature. The overall state is brownish yellow, which greatly affects the transparency. In this example, by using newer epoxy resins, acid anhydride curing agents and introducing fully transparent additives, transparent rocks can reach relevant brittleness at room temperature, reducing the subsequent restrictions on laboratory conditions, avoiding the situation where the transparent effect of transparent rocks is weakened after adding additives, and greatly improving the transparency of the three-phase mixed liquid after curing. At the same time, the mixing chamber and the vacuum chamber are separated by a multifunctional sample preparation device, so that three different reagents can be injected into the mixing chamber through relatively independent grouting pipes, ensuring that they are fully stirred and fused in the mixing chamber, ensuring the transparency and integrity of the transparent liquid binder, and obtaining fully transparent fully transparent rock test blocks with mechanical properties close to natural rocks. It can provide important technical support for future building materials and structures.

[0080] Embodiment 8:

[0081] This embodiment provides an application of a fully transparent rock sample produced by the production method described in Example 7, which is characterized by being used for the construction of a transparent lighting structure.

[0082] Embodiment 9:

[0083] This embodiment provides an application of a fully transparent rock sample produced by the production method described in Example 7, which is characterized by combining PIV and DIC image processing technology to accurately visualize the destruction processes such as studying the three-dimensional crack propagation mechanism of real rock masses, hydraulic fracturing, rough joint surface shear, seepage characteristics and rock blasting characteristics.

Claims

1. A device for making a fully transparent rock sample, characterized in that: It comprises a vacuum chamber (4), a vacuum device (7), a material static stirring device (5) and a sample preparation mold (16); The vacuum chamber (4) is a rectangular box with an open upper end as a whole; the sample preparation mold (16) is arranged in the inner cavity of the vacuum chamber (4); the upper open end of the vacuum chamber (4) is sealed by a vacuum device (7) and a material static stirring device (5); The vacuum device (7) comprises a U-shaped block structure and a vacuum tube (9); a cavity is encapsulated in the U-shaped block structure; an exhaust hole is arranged on the upper surface of the vacuum device (7); the exhaust hole connects the cavity with the outside; one end of the vacuum tube (9) is connected to an external vacuum instrument, and the other end passes through the vacuum device (7) and then extends into the inner cavity of the vacuum chamber (4); a vacuum switch (23) is arranged on the pipeline of the vacuum tube (9); The material static stirring device (5) is arranged above the vacuum device (7) to cover the opening on the upper surface of the U-shaped block structure; the vacuum chamber (4), the material static stirring device (5) and the vacuum device (7) enclose a closed chamber; the material static stirring device (5) comprises a stirring chamber (12), an external protection chamber (25), a grouting pipe I (8), a grouting pipe II (80) and a grouting pipe III (15); a heating copper wire (14) is wound around the pipe bodies of the grouting pipes I (8), II (80) and III (15); valves (27) are arranged on the pipes of the grouting pipes I (8) and II (80); the external protection chamber (25) covers the stirring chamber (12); a stirring device (11) is arranged in the stirring chamber (12); the grouting pipes I (8) and II (80) are arranged beside the external protection chamber (25); the grouting pipes I ( The grouting port of the grouting pipe Ⅰ (8) is connected to the epoxy resin grouting device, and the grouting outlet passes through the external protection chamber (25) and then extends into the inner cavity of the mixing chamber (12); the grouting port of the grouting pipe Ⅰ (8) is connected to the epoxy resin grouting device, and the grouting outlet passes through the external protection chamber (25) and then extends into the inner cavity of the mixing chamber (12); the grouting port of the grouting pipe Ⅱ (80) is connected to the curing agent and additive grouting device, and the grouting outlet passes through the external protection chamber (25) and then extends into The grouting pipe III (15) is arranged below the external protection chamber (25); the grouting port of the grouting pipe III (15) is accommodated in the mixing chamber (12), and the slurry outlet passes through the external protection chamber (25) and extends into the inner cavity of the vacuum chamber (4); the grouting port of the grouting pipe III (15) is provided with a freely closing chamber door (32); the slurry outlet of the grouting pipe III (15) is located above the sample preparation mold (16); During operation, epoxy resin and curing agent are injected into the stirring chamber (12); the stirring device (11) starts stirring the mixed liquid to obtain a transparent liquid binder (17); the transparent liquid binder (17) is injected into the sample preparation mold (16) through the grouting pipe (15); and the transparent liquid binder (17) is solidified to obtain a transparent rock.

2. The device for making a fully transparent rock sample according to claim 1, characterized in that: The vacuum chamber (4) comprises a bottom plate (19) and four side plates (20); the side plates (20) are provided with hollow windows; and tempered glass doors (1) are embedded in the hollow windows.

3. The device for making a fully transparent rock sample according to claim 1, characterized in that: It also includes a base oscillating device (3); the vacuum chamber (4) is placed on the base oscillating device (3); during operation, the base oscillating device (3) realizes a vibration function to reduce bubbles during the grouting process.

4. The device for making a fully transparent rock sample according to claim 3 is characterized in that: A leak-proof gasket (28) is provided at the connection between the base oscillating device (3) and the vacuum chamber (4).

5. The device for making a fully transparent rock sample according to claim 1, characterized in that: The sample preparation mold (16) is made of silicone material.

6. The device for making a fully transparent rock sample according to claim 1, characterized in that: The epoxy resin selected is epoxy resin E51; the curing agent selected is modified methyl hexahydrophthalic anhydride; and the additive selected is polyethylene glycol PEG.

7. The device for making a fully transparent rock sample according to claim 1, characterized in that: An operation display screen (10) is provided on the external protection chamber (25); a visual sensing unit is arranged in the mixing chamber (12); an air pressure sensing unit is arranged in the vacuum chamber (4); the curing agent and additive grouting device, the air pressure sensing unit, the visual sensing unit, the epoxy resin grouting device, the external vacuum instrument, the heating copper wire (14), and the free closing chamber door (32) are all electrically connected to the operation display screen (10).

8. A method for making a fully transparent rock sample according to the making device of claims 1 to 7, characterized in that: The following steps are involved: 1) Determine the mixing ratio of epoxy resin, curing agent and additives; 2) evenly applying a release agent on the inner wall of the sample preparation mold (16); 3) placing the sample preparation mold (16) into a vacuum chamber and fixing it in the vacuum chamber; 4) two grouting pipes (12) are respectively connected to an epoxy resin grouting device and a curing agent and additive grouting device; a heating switch of the grouting pipe (8) is turned on to heat the grouting pipe; 5) Open the valve (27) and inject epoxy resin, curing agent and additive into the inner cavity at different rates according to the mixing ratio; after the grouting starts, the stirring device (11) is simultaneously turned on. Start stirring the mixed liquid to obtain a transparent liquid binder (17); after sufficient epoxy resin, curing agent and additives are injected, close the valve (27) and remove the grouting device; stop stirring when the mixing chamber (12) finds that the transparent liquid binder (17) appears clearly through the operating display screen (10) and there is no flocculent floating matter inside. 6) Turn on the heating switch of the grouting pipe (15) to heat the grouting pipe; simultaneously connect the electromagnetic exciter (3) to the external alternating power supply; open the door (32) to allow the transparent liquid binder (17) to be injected into the sample preparation mold (16) along the grouting pipe (15); after the grouting starts, turn on the external alternating power supply to vibrate the sample preparation mold (16); when the transparent liquid binder (17) is clearly visible on the sample preparation mold (16) and the liquid level does not drop significantly after continued vibration, close the door (32). 7) Close the vacuum chamber (4) to keep it in a strictly sealed state, connect the vacuum tube (9) to an external vacuum instrument, and turn on the vacuum switch (23) to start evacuating the vacuum chamber; observe through the operating display (10) that the air pressure in the vacuum chamber reaches a specified value, stop evacuating and maintain negative pressure, and turn off the external alternating power supply to stop vibrating; after maintaining the negative pressure for 24 hours, remove the negative pressure, separate the vacuum instrument from the vacuum tube (9), and separate the electromagnetic exciter (11) from the external alternating power supply; maintain the sample preparation mold (16) at room temperature for 7 days until the transparent rock is formed; The vacuum chamber is opened, and the sample preparation mold (16) is taken out; the sample preparation mold (16) is peeled off to obtain a fully transparent rock sample. 8) Changing the mass ratio of epoxy resin, curing agent and additive, repeating steps 1) to 7) to obtain fully transparent rock samples with different mechanical properties.

9. Application of the fully transparent rock sample obtained by the preparation method of claim 8, characterized in that Used for the construction of transparent lighting structures.

10. Application of the fully transparent rock sample obtained by the preparation method of claim 8, characterized in that Combining PIV and DIC image processing technology, it is used to study the three-dimensional crack propagation mechanism of real rock mass, hydraulic fracturing, rough joint surface shear, seepage characteristics and rock blasting characteristics, and other destruction processes for accurate visualization.

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