Manufacturing device and method for rapidly preparing high-quality artificial layered rock sample

Abstract

The invention discloses a manufacturing device for rapidly preparing a high-quality artificial layered rock sample, and belongs to the technical field of rock-soil detection, the manufacturing device comprises a sample preparation box, an elastic buffer device mounted at the bottom of the sample preparation box, and a deflection device used for controlling the deflection angle of the sample preparation box, and a vibrator is mounted at the bottom of the sample preparation box; a bedding surface compression assembly is mounted on the inner side of the sample preparation box in a sliding and sealing manner, the bedding surface compression assembly is parallel to the bottom plane of the sample preparation box, a preparation box sealing top plate is detachably mounted at the top of the sample preparation box, and a rock-like material ballast cavity is formed between the bedding surface compression assembly and the lower box wall of the sample preparation box; an air ballast cavity is formed among the bedding surface compression assembly, the preparation box sealing top plate and the upper box wall of the sample preparation box, the air ballast cavity is connected with an air pump through a high-pressure air pipe, and a one-way valve is mounted on the high-pressure air pipe. By adopting the device and the method, the sample preparation quality can be improved.

Description

Technical Field

[0001] The invention belongs to the technical field of rock and soil detection, and in particular relates to a manufacturing device and method for rapidly preparing high-quality artificial layered rock samples. Background Art

[0002] After a long process of diagenesis and tectonic movement, the rock mass will produce a large number of discontinuous structural planes, such as bedding structural planes, and the existence of bedding structural planes will have a great influence on the mechanical properties of the rock mass, especially parameters such as bedding inclination and bedding thickness. Therefore, it is extremely important to study the mechanical behavior characteristics of rock mass under different layered characteristics.

[0003] At present, the preparation of layered rock samples is mainly divided into two directions: (1) on-site sampling. The samples obtained by this method are from natural rock and can restore the geological characteristics of the section more realistically. However, there is a problem that the bedding characteristics of the samples and the test results are highly discrete. (2) artificial preparation. Rock-like samples are made by similar proportions to simulate real rocks, and certain measures are taken to prepare layered rock. However, the selection of cutting surfaces, adhesives and casting contact surface treatment methods have a great influence on the bedding characteristics. In addition, there are many problems in the production process, such as cumbersome operating steps, insufficient bonding of bedding contact surfaces, loose vibration and different density of rock masses in different rock layers. Summary of the invention

[0004] In view of this, the purpose of the present invention is to provide a device and method for quickly preparing high-quality artificial layered rock samples, which can improve the quality of sample preparation.

[0005] In order to achieve the above object, the present invention provides the following technical solutions: The present invention discloses a device for rapidly preparing high-quality artificial layered rock samples, comprising a sample preparation box, an elastic buffer device installed at the bottom of the sample preparation box, and a deflection device for controlling the deflection angle of the sample preparation box, wherein a vibrator is installed at the bottom of the sample preparation box, a bedding surface compression component is installed on the inner sliding seal of the sample preparation box, the bedding surface compression component is parallel to the bottom plane of the sample preparation box, a preparation box sealing top plate is detachably installed on the top of the sample preparation box, a rock-like material ballast chamber is formed between the bedding surface compression component and the lower box wall of the sample preparation box, an air ballast chamber is formed between the bedding surface compression component, the preparation box sealing top plate and the upper box wall of the sample preparation box, the air ballast chamber is connected to an air pump through a high-pressure air pipe, and a one-way valve is installed on the high-pressure air pipe.

[0006] Furthermore, the sample preparation box includes a box body and side baffles, the box body has a side opening and a top opening, a vertical groove is opened on the inner side of the box body near the side opening, the side baffle is slidably sealed and installed in the vertical groove, and the top opening and side opening are respectively closed by the preparation box sealing top plate and the side baffles.

[0007] Furthermore, the bedding surface compression assembly includes at least one layer of bedding surface pressure plates arranged in parallel and at intervals in the sample preparation box, and a rock material ballast cavity is formed between two adjacent layers of bedding surface pressure plates. The four sides of the bedding surface pressure plates are respectively slidably sealed with the inner walls of the sample preparation box and the side baffles.

[0008] Furthermore, the layer surface pressure plate includes an outer plate body and an inner plate body, the inner side of the outer plate body is formed with a slot for installing the inner plate body, the lower surface of the inner plate body is evenly spaced with a plurality of pneumatic protrusion structures, and the lower side of the outer plate body is provided with through holes corresponding one-to-one to the pneumatic protrusion structures.

[0009] Furthermore, a main airway and a plurality of bronchial airways connected to the main airway are provided on the inner side of the inner plate body, and the pneumatic protrusion structure includes an airbag, a bag compression sheet and an elastic stretching device. The airbag is connected to the bronchial airways in a one-to-one correspondence, and the bag compression sheet is fixedly mounted on the airbag, one end of the bag compression sheet is hinged to the inner plate body, and the other end extends outward, and an elastic stretching device is installed between the bag compression sheet and the inner plate body.

[0010] Furthermore, the bag compression sheet is fixedly installed on the side of the airbag close to the side opening, a limiting groove is provided on the lower side of the inner plate body, a limiting column is fixed on the inner side of the outer plate body, and the limiting column is inserted into the limiting groove.

[0011] Furthermore, a threaded connection hole is provided on the side surface of the inner plate body close to the side surface.

[0012] Furthermore, the deflection device includes four jacks installed at the four corners of the bottom of the sample preparation box, the jacks are installed on the supporting platform, the elastic buffer device corresponds to the jacks one by one, the upper end of the elastic buffer device is connected to the sample preparation box, and the lower end of the elastic buffer device is connected to the output end of the jack.

[0013] Furthermore, a thickness measuring device for measuring the thickness of the rock mass and an angle measuring device for measuring the deflection angle of the sample preparation box are also installed on the support platform.

[0014] The beneficial effects of the present invention are: The present invention discloses a device for rapidly preparing high-quality artificial layered rock samples, which can maintain stable quality of various types of rock materials through integrated vibration and pressurization measures, thereby avoiding the problem of large discreteness of mechanical parameters of various types of rock materials in traditional sample preparation methods, and by producing bedding surfaces, it is closer to actual engineering.

[0015] The sample preparation box disclosed in the device of the present invention can adjust the angle through the bottom jack, and then cooperate with the widely used vertical core drilling sampler to realize multi-angle core drilling, so as to quickly prepare high-quality layered rock samples of different angles and different layer thicknesses, thereby adapting to the test requirements under different conditions.

[0016] The device of the present invention is provided with an air ballast chamber, and the rock-like material is pressurized by means of an air pump, which can better adapt to the pressurization conditions of rock-like materials of different thicknesses, thereby reducing the design and manufacturing costs of the device.

[0017] Other advantages, objectives and features of the present invention will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art may be taught from the practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration: Figure 1 It is a structural schematic diagram of the manufacturing device of the present invention; Figure 2 It is a structural schematic diagram of the sample preparation box of the present invention; Figure 3 It is a structural diagram of the box; Figure 4 is a cross-sectional view of the bedding plane pressure plate; Figure 5 for Figure 4 The enlarged view of point A in the middle; Figure 6 It is a schematic diagram of the structure of the inner plate.

[0019] The markings in the accompanying drawings are as follows: rock-like material ballast chamber 1, air ballast chamber 2, sample preparation box 3, box body, side baffle 5, vertical groove 6, bedding surface pressure plate 7, outer plate body 71, inner plate body 72, slot 73, pneumatic protrusion structure 74, air bag 741, pressure bag sheet 742, elastic stretching device 743, through hole 75, limit groove 76, limit column 77, main air duct 8, branch air duct 9, threaded connection hole 10, support platform 11, jack 12, spring chassis 13, height gauge 14, angle ruler 15, elastic buffer device 21, spring top seat 22, vibrator 23, air inlet pipe 31, barometer 32, preparation box sealing top plate 33, air pump 41, high-pressure air pipe 42, one-way valve 43. DETAILED DESCRIPTION

[0020] like Figures 1 to 6 As shown, a manufacturing device for rapidly preparing high-quality artificial layered rock samples disclosed in the present invention comprises a sample preparation box 3, an elastic buffer device 21 installed at the bottom of the sample preparation box 3, and a deflection device for controlling the deflection angle of the sample preparation box 3. A vibrator 23 is installed at the bottom of the sample preparation box 3. The sample preparation box 3 disclosed in the present invention is in a rectangular shape as a whole, and the interior is used to accommodate and manufacture rock-like materials. When the rock-like materials are formed layer by layer, the rock-like materials are vibrated and compacted by the vibrator 23 arranged at the bottom of the preparation box.

[0021] Among them, the inner sliding seal of the sample preparation box 3 is installed with a bedding surface compression component, which is parallel to the bottom plane of the sample preparation box 3. The bedding surface compression component is used to provide pressure for the rock-like material. It can make a rough surface for the rock and soil layer while facilitating the connection of the joint surfaces between two adjacent layers of rock-like materials.

[0022] A preparation box sealing top plate 33 is detachably installed on the top of the sample preparation box 3, which is convenient for sealing the entire sample preparation box 3, thereby providing pressure for the air ballast chamber 2. A rock-like material ballast chamber 1 is formed between the bedding surface compression assembly and the lower box wall of the sample preparation box 3, and an air ballast chamber 2 is formed between the bedding surface compression assembly, the preparation box sealing top plate 33 and the upper box wall of the sample preparation box 3. The air ballast chamber 2 is connected to an air pump 41 through an air inlet pipe 31 and a high-pressure air pipe 42, and a one-way valve 43 is installed on the high-pressure air pipe 42.

[0023] A method for rapidly preparing high-quality artificial layered rock samples, in the present invention, the deflection device is in the initial state, the bottom of the sample preparation box 3 is kept at the same height, and the sample preparation box 3 is placed horizontally. When the rock sample is prepared, the sealed top plate 33 of the sample preparation box is first opened, and the rock-like material is injected into the sample preparation box 3, and the required rock layer thickness is controlled by the thickness measuring device, and the vibrator 23 is turned on to drive the sample preparation box 3 to vibrate, so that the rock-like material in the sample preparation box 3 is vibrated and compacted. Then the vibrator 23 is turned off, and the first layer of rock-like material is waited for about one hour to initially set. After the initial setting, the rough surface of the bedding surface compression component is placed on the top of the rock-like material, and there is a rough surface with artificial concave and convex marks on the surface of the bedding surface compression component. The sealed top plate 33 of the sample preparation box is closed, and the sample preparation box 3 is filled with uniform air pressure through the air pump 41. The air pressure value is determined according to the actual burial depth and other conditions on site, and the air pressure value is judged by the barometer 32, and the pressure is supplemented in time. After stabilizing the pressure for a certain period of time, turn off the air pump 41, open the sealed top plate 33 of the sample preparation box, take out the bedding surface compression assembly, and then repeat the above operation to produce the subsequent second layer, third layer, etc. After the required number and thickness of rock layers are produced, adjust the deflection device to tilt the sample preparation box 3. The angle measuring device can be used to determine whether the inclination angle meets the requirements. Use the common drilling coring machine on the market to coring from the top of the rock-like material downward. By adjusting the inclination angle of the sample preparation box 3, multi-angle layered rock sample preparation can be achieved.

[0024] The present invention discloses a device and method for quickly preparing high-quality artificial layered rock samples, which can maintain the quality of each layer of rock materials stable through integrated vibration and pressurization measures, avoiding the problem of large discreteness of mechanical parameters of each layer of rock materials in traditional sample preparation methods, and by producing bedding surfaces, it is closer to actual engineering.

[0025] In this embodiment, the sample preparation box 3 includes a box body and a side baffle 5. The box body has a side opening and a top opening. A vertical groove 6 is opened on the inner side of the box body near the side opening. The side baffle 5 is slidably and sealedly installed in the vertical groove 6. When normally installed, the top opening and the side opening are respectively closed by the preparation box sealing top plate 33 and the side baffle 5. By adopting the above arrangement, it is convenient to add rock-like materials, and it is also convenient to disassemble and install the bedding surface compression assembly and the preparation box sealing top plate 33.

[0026] In this embodiment, the bedding surface compression assembly includes at least one layer of bedding surface pressure plate 7 arranged in parallel and at intervals in the sample preparation box 3. The bedding surface pressure plate 7 is parallel to the bottom surface of the box body. A rock material ballast cavity is formed between two adjacent layers of bedding surface pressure plates 7. The four sides of the bedding surface pressure plate 7 are respectively slidably sealed with the inner walls of the sample preparation box 3 and the side baffle 5. Each layer of rock-like material corresponds to one layer of bedding surface pressure plate 7. By setting up multiple layers of bedding surface pressure plates 7, it is convenient to vibrate and initially set multiple layers of rock-like materials together, which can greatly save the manufacturing cycle of the rock and soil layers and improve the sample efficiency. After the bedding surface pressure plate 7 is pulled out, it can be uniformly pressurized to combine the rock and soil layers, further improving the sample efficiency.

[0027] In this embodiment, the bedding surface pressure plate 7 includes an outer plate body 71 and an inner plate body 72, a slot 73 for installing the inner plate body 72 is formed on the inner side of the outer plate body 71, a plurality of pneumatic protrusion structures 74 are evenly spaced on the lower surface of the inner plate body 72, and a through hole 75 corresponding to the pneumatic protrusion structure 74 is opened on the lower side of the outer plate body 71. Through the pneumatic protrusion structure 74, a rough texture can be formed on the upper surface of the rock-like material, which is closer to the actual project and increases the accuracy of the sample.

[0028] In this embodiment, the inner side of the inner plate body 72 is provided with a main airway 8 and a plurality of lateral airways 9 connected to the main airway 8, and the outer end of the main airway 8 is connected to an air filling and suction device through an air hole. The pneumatic protrusion structure 74 includes an airbag 741, a pressure bag sheet 742 and an elastic stretching device 743. The airbag 741 is connected to the lateral airway 9 in a one-to-one correspondence, and the pressure bag sheet 742 is fixedly installed on the airbag 741. One end of the pressure bag sheet 742 is hinged to the inner plate body 72, and the other end extends outward. An elastic stretching device 743 is installed between the pressure bag sheet 742 and the inner plate body 72. The shape of the pneumatic protrusion structure 74 is controlled by air pressure, which is more convenient to control, and it is convenient to remove the bedding surface pressure plate 7 later to avoid interference with the formation of the rock and soil layer.

[0029] In this embodiment, the capsule pressing sheet 742 is fixedly installed on the side of the airbag 741 near the side opening, a limiting groove 76 is provided on the lower side of the inner plate 72, and a limiting column 77 is fixed on the inner side of the outer plate 71, and the limiting column 77 is inserted into the limiting groove 76. After the inner plate 72 is pulled outward for a certain distance, the outer plate 71 can be pulled out together under the limiting effect of the limiting column 77, and the overall control is simpler.

[0030] In this embodiment, a threaded connection hole 10 is provided on the side surface of the inner plate body 72 close to the side surface, which can be conveniently connected to an external pull rod, thereby facilitating the inner plate body 72 to be pulled out.

[0031] In this embodiment, the deflection device includes four jacks 12 installed at the four corners of the bottom of the sample preparation box 3, the jacks 12 are installed on the supporting platform 11, the elastic buffer device 21 corresponds to the jacks 12 one by one, the upper end of the elastic buffer device 21 is connected to the spring top seat 22 installed at the bottom of the sample preparation box 3, and the lower end of the elastic buffer device 21 is connected to the elastic chassis of the output end of the jack 12.

[0032] In this embodiment, a thickness measuring device for measuring the thickness of the rock mass and an angle measuring device for measuring the deflection angle of the sample preparation box 3 are also installed on the support platform 11. The thickness measuring device is a height ruler 14, and the angle measuring device is an angle ruler 15.

[0033] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A device for rapidly preparing high-quality artificial layered rock samples, characterized in that: The invention comprises a sample preparation box, an elastic buffer device installed at the bottom of the sample preparation box, and a deflection device for controlling the deflection angle of the sample preparation box, wherein a vibrator is installed at the bottom of the sample preparation box, a bedding surface compression assembly is installed on the inner sliding seal of the sample preparation box, the bedding surface compression assembly is parallel to the bottom plane of the sample preparation box, a preparation box sealing top plate is detachably installed on the top of the sample preparation box, a rock-like material ballast chamber is formed between the bedding surface compression assembly and the lower box wall of the sample preparation box, an air ballast chamber is formed between the bedding surface compression assembly, the preparation box sealing top plate and the upper box wall of the sample preparation box, the air ballast chamber is connected to an air pump via a high-pressure air pipe, and a one-way valve is installed on the high-pressure air pipe.

2. The device for rapidly preparing high-quality artificial layered rock samples according to claim 1, characterized in that: The sample preparation box includes a box body and side baffles. The box body has a side opening and a top opening. A vertical groove is opened on the inner side of the box body near the side opening. The side baffle is slidably and sealably installed in the vertical groove. The top opening and the side opening are closed by the preparation box sealing top plate and the side baffles respectively.

3. The device for rapidly preparing high-quality artificial layered rock samples according to claim 2 is characterized in that: The bedding surface compression assembly includes at least one layer of bedding surface pressure plates arranged in parallel and at intervals in the sample preparation box, and a rock material ballast cavity is formed between two adjacent bedding surface pressure plates. The four sides of the bedding surface pressure plates are respectively slidably sealed with the inner walls of the sample preparation box and the side baffles.

4. The device for rapidly preparing high-quality artificial layered rock samples according to claim 3 is characterized in that: The layer surface pressure plate includes an outer plate body and an inner plate body. The inner side of the outer plate body is formed with a slot for installing the inner plate body. The lower surface of the inner plate body is evenly spaced with a plurality of pneumatic protrusion structures. The lower side of the outer plate body is provided with through holes corresponding to the pneumatic protrusion structures one by one.

5. The device for rapidly preparing high-quality artificial layered rock samples according to claim 4, characterized in that: A main airway and a number of bronchial airways connected to the main airway are provided on the inner side of the inner plate body. The pneumatic protrusion structure includes an airbag, a bag compression sheet and an elastic stretching device. The airbags are connected to the bronchial airways in a one-to-one manner. The bag compression sheet is fixedly installed on the airbag, one end of the bag compression sheet is hinged to the inner plate body, and the other end extends outward. An elastic stretching device is installed between the bag compression sheet and the inner plate body.

6. The device for rapidly preparing high-quality artificial layered rock samples according to claim 5, characterized in that: The bag compression sheet is fixedly installed on the side of the airbag close to the side opening, a limiting groove is arranged on the lower side of the inner plate body, a limiting column is fixed on the inner side of the outer plate body, and the limiting column is inserted into the limiting groove.

7. The device for rapidly preparing high-quality artificial layered rock samples according to claim 6, characterized in that: A threaded connection hole is provided on the side surface of the inner plate body close to the side surface.

8. A device for rapidly preparing high-quality artificial layered rock samples according to any one of claims 1 to 7, characterized in that: The deflection device includes four jacks installed at the four corners of the bottom of the sample preparation box, the jacks are installed on the supporting platform, the elastic buffer device corresponds to the jacks one by one, the upper end of the elastic buffer device is connected to the sample preparation box, and the lower end of the elastic buffer device is connected to the output end of the jack.

9. The device for rapidly preparing high-quality artificial layered rock samples according to claim 8, characterized in that: The support platform is also equipped with a thickness measuring device for measuring the thickness of the rock mass and an angle measuring device for measuring the deflection angle of the sample preparation box.

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