A rock stratum stacking similar simulation experiment device

Abstract

The application discloses a rock stratum stacking similar simulation experiment device. The rock stratum stacking similar simulation experiment device comprises an experiment table frame, a baffle which is detachably arranged in the experiment table frame and which, together with the experiment table frame, forms a rock stratum laying space for laying rock stratum similar materials, and a calibration assembly. The calibration assembly comprises a scale, a flexible rope and a fixed clamping piece. The experiment table frame comprises two oppositely arranged first and second sides. The first and second sides are both provided with the scale, and the scale is provided with a sliding groove extending in the vertical direction. The fixed clamping piece is located on the first side, and the first end of the flexible rope is connected with the fixed clamping piece after penetrating through the sliding groove on the scale of the first side. A take-up mechanism is located on the second side, and the second end of the flexible rope is connected with the take-up mechanism after penetrating through the sliding groove on the scale of the second side. The rock stratum stacking similar simulation experiment device improves the clarity and accuracy of line marking and calibration, and can be used for parallel rock strata and inclined rock strata.

Description

Technical Field

[0001] This invention relates to the field of rock strata similarity simulation experiment technology, and in particular to a rock strata stacking similarity simulation experiment device. Background Technology

[0002] To simulate problems such as instability and deformation of overburden structures and surface collapse caused by mining activities in coal seam mining, similar simulation experimental devices are usually used to lay similar materials of coal and rock strata. By monitoring equipment to record and analyze the excavation process and experimental data of similar simulated rock strata, the obtained patterns have important reference value for the field.

[0003] Existing mine pressure similarity simulation test benches primarily rely on manual marking to determine the height of rock strata. This method suffers from poor clarity and accuracy, and the marking lines are often erased during the addition of similar materials, reducing the accuracy and convenience of the simulation experiment. In particular, when simulating inclined rock strata, the height determination is prone to errors and confusion, failing to achieve the experimental objectives effectively. This may impose certain limitations on different types of experiments and tests, narrowing the applicable scenarios for mine pressure similarity simulation experiments and reducing their versatility.

[0004] Therefore, how to improve the accuracy and convenience of similar simulation test benches, while expanding their applicable scenarios, is a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a similar simulation experimental device for rock strata stacking, so as to improve the accuracy and convenience of the similar simulation experimental platform, and at the same time broaden the applicable scenarios of the similar simulation experimental platform.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A simulated experimental apparatus for rock strata stacking includes:

[0008] Experimental platform frame;

[0009] A baffle is detachably installed in the experimental table frame, and the baffle and the experimental table frame enclose a rock layer laying space for laying a rock layer similar to the rock layer. The side of the baffle near the rock layer laying space is brushed with lubricating oil.

[0010] A calibration component is disposed on two opposite sides of the experimental platform frame. The calibration component includes a scale, a flexible rope, and a fixing clip. The experimental platform frame includes two oppositely disposed first sides and second sides. A scale is disposed on both the first side and the second side, and the scale has a groove extending in the vertical direction. The fixing clip is located on the first side. The first end of the flexible rope passes through the groove on the scale on the first side and is connected to the fixing clip.

[0011] A take-up mechanism is located on the second side, and the second end of the flexible rope passes through a groove on the scale on the second side and is connected to the take-up mechanism.

[0012] Optionally, in the above-mentioned rock strata stacking similarity simulation experimental device, the calibration component further includes:

[0013] The tensioning rod passes vertically through the groove of the scale, and the tensioning rod has a first through hole along its axial direction inside, through which the flexible rope passes.

[0014] The tensioning plate has a wire groove, the tensioning rod is welded in the wire groove, and the tensioning plate is located on the side of the scale near the rock stratum laying space;

[0015] The tensioning block is detachably connected to one end of the tensioning rod, and the tensioning block is located on the side of the scale away from the rock stratum laying space.

[0016] Optionally, in the above-mentioned rock strata stacking similar simulation experimental device, the tensioning rod is a threaded rod with external threads, and the tensioning block is a nut that can be connected to the threaded rod by threads.

[0017] Optionally, in the above-mentioned rock strata stacking similarity simulation experimental device, the take-up mechanism includes:

[0018] The cable retractor has a cable retracting space.

[0019] A winding drum is rotatably disposed in the take-up space, and the second end of the flexible rope is wound around the winding drum;

[0020] A winding handle is connected to the winding drum and is used to drive the winding drum to rotate.

[0021] Optionally, in the above-mentioned rock strata stacking similarity simulation experimental device, a first leg and a second leg are fixedly arranged inside the take-up box, the winding drum is rotatably arranged between the first leg and the second leg, and a clamping element is provided between at least one of the first leg and the second leg and the winding drum.

[0022] Optionally, the above-mentioned rock strata stacking similarity simulation experimental device also includes:

[0023] The first loading mechanism is located at the upper end of the experimental platform frame;

[0024] The second set of loading mechanisms is set in the rock stratum laying space, and the loading direction of the second set of loading mechanisms is perpendicular to the loading direction of the first set of loading mechanisms.

[0025] The third loading mechanism is positioned opposite the second loading mechanism in the rock stratum laying space.

[0026] Optionally, in the above-mentioned rock strata stacking similar simulation experimental device, each loading mechanism includes a hydraulic loading component, a pressure plate connected to the telescopic end of the hydraulic loading component, and a pressure display for monitoring the pressure.

[0027] Optionally, in the above-mentioned rock strata stacking similar simulation experimental device, a support beam is also provided above the experimental platform frame, and a lifting drive component is provided on the support beam for lifting the similar material to be laid to a preset height.

[0028] Optionally, in the above-mentioned rock strata stacking similar simulation experimental device, the lifting drive assembly includes a lifting motor, a steel wire rope connected to the output shaft of the lifting motor, and a hook hinged to the steel wire rope.

[0029] When using the rock layer stacking simulation experimental device provided by this invention, the baffle is detachably installed on the experimental platform frame according to the stacking height, and the baffle and the experimental platform frame enclose the rock layer laying space; the calibration components on both sides are slid along the corresponding scale grooves to the zero mark of the scale; the first end of the flexible rope is passed through the scale groove on the first side from the inside of the rock layer laying space toward the outside of the rock layer laying space and connected to the fixing clip on the first side; according to the height designed in the drawing, the two ends of the flexible rope are slid along the scale grooves to the height of the first layer of stacked rock, so that the flexible rope is level with the height of the first layer of stacked rock, and then the rope is wound up by the winding mechanism. Tighten the flexible rope; then, pour the proportioned rock-like material into the rock-laying space, gently pick up the flexible rope and release it, ensuring that the flexible rope is level with the height of the first layer of rock and is in a straight state, compact and flatten the rock-like material, after the first layer of rock is piled up to the same level as the flexible rope, sprinkle a layer of mica, then slide both ends of the flexible rope along the groove of the scale to the height of the second layer of rock, continue to lay similar material in the rock-laying space, and lay layer by layer in the above manner until the designed rock layer height is reached, then untie one end of the flexible rope connected to the fixed clip, and retract the other end through the take-up mechanism and then remove the take-up mechanism.

[0030] Therefore, the rock strata stacking similarity simulation experimental device provided by the present invention, which uses flexible ropes to calibrate the height of rock strata, has the following advantages over the existing technology that uses manual marking:

[0031] (1) The steps for determining the thickness of simulated rock layers by marking lines have been simplified;

[0032] (2) When used to simulate parallel rock strata, the experimental device can be adjusted in height, precision and flexibility as needed, so as to achieve a more flexible, accurate and reliable simulation experiment;

[0033] (3) When used to simulate inclined rock layers, the height of the flexible ropes at both ends can be adjusted to build a complete and flat rock layer with an angle, which improves the applicable scenarios and has good versatility.

[0034] (4) When used for simulating rock strata with many layers, the calibration is more accurate, greatly reducing experimental errors;

[0035] (5) Improved the clarity and accuracy of line marking, avoided the phenomenon of marking lines being erased, and improved the accuracy and convenience of simulation implementation;

[0036] (6) Easy to adjust, saving time and labor. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is an isometric structural schematic diagram of a rock stratum stacking similarity simulation experimental device provided in an embodiment of the present invention;

[0039] Figure 2 This is a schematic diagram of the structure of a rock strata stacking similarity simulation experimental device provided in an embodiment of the present invention for use in horizontal model stacking;

[0040] Figure 3 This is a schematic diagram of the structure of a rock strata stacking similarity simulation experimental device provided in an embodiment of the present invention for use in stacking inclined models;

[0041] Figure 4 This is a partial structural schematic diagram of a tensioning assembly provided in an embodiment of the present invention;

[0042] Figure 5 This is a schematic diagram of a take-up mechanism provided in an embodiment of the present invention;

[0043] Figure 6 This is a schematic diagram of the structure of a tensioning sheet provided in an embodiment of the present invention;

[0044] Figure 7 This is a schematic diagram of the structure of a tensioning block provided in an embodiment of the present invention;

[0045] Figure 8 This is a side view of a rock strata stacking simulation experimental device provided in an embodiment of the present invention.

[0046] Among them, 100 is the experimental platform frame, 101 is the base, 102 is the rivet, 200 is the baffle, 300 is the calibration component, 301 is the scale, 3011 is the slide groove, 302 is the flexible rope, 303 is the fixing clip, 304 is the tension rod, 305 is the tension plate, 3051 is the wire groove, 306 is the tension block, 400 is the wire take-up mechanism, 401 is the wire take-up box, 402 is the winding drum, 403 is the wire crank handle, 404 is the clamping component, 500 is the first loading mechanism, 600 is the second loading mechanism, 601 is the hydraulic loading component, 602 is the pressure plate, 603 is the pressure display, 700 is the third loading mechanism, 800 is the support beam, 900 is the lifting drive component, 901 is the lifting motor, 902 is the wire rope, and 903 is the hook. Detailed Implementation

[0047] In view of this, the core of the present invention is to provide a rock stratum stacking similarity simulation experimental device to improve the accuracy and convenience of the similarity simulation experimental platform, while expanding the applicable scenarios of the similarity simulation experimental platform.

[0048] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0049] like Figures 1 to 8 As shown in the figure, an embodiment of the present invention discloses a rock strata stacking similarity simulation experimental device, including an experimental platform frame 100, a baffle 200, a calibration component 300 and a wire take-up mechanism 400.

[0050] The baffle 200 is detachably mounted in the experimental platform frame 100, which is mounted on the base 101. The baffle 200 and the experimental platform frame 100 enclose a space for laying a rock stratum-like material. The calibration components 300 are located on two opposite sides of the experimental platform frame 100. The calibration components 300 include a scale 301, a flexible rope 302, and a fixing clip 303. The experimental platform frame 100 includes two oppositely arranged first and second sides. On both sides, a scale 301 is provided on the first side and the second side, and the scale 301 is provided with a groove 3011 extending in the vertical direction. The fixed fastener 303 is located on the first side, and the first end of the flexible rope 302 passes through the groove 3011 on the scale 301 on the first side and is connected to the fixed fastener 303. The winding mechanism 400 is located on the second side, and the second end of the flexible rope 302 passes through the groove 3011 on the scale 301 on the second side and is connected to the winding mechanism 400.

[0051] When using the rock layer stacking simulation experimental device provided by this invention, the baffle 200 is detachably installed on the experimental platform frame 100 according to the stacking height, and the baffle 200 and the experimental platform frame 100 enclose a rock layer laying space; the calibration components 300 on both sides are slid along the corresponding grooves 3011 of the scale 301 to the zero mark of the scale 301; the first end of the flexible rope 302 is passed through the groove 3011 of the scale 301 on the first side from the inside of the rock layer laying space toward the outside of the rock layer laying space and connected to the fixing clip 303 on the first side; according to the height designed in the drawings, the two ends of the flexible rope 302 are slid along the grooves 3011 on the scale 301 to the height of the first layer of stacked rock, so that the flexible rope 302 is level with the height of the first layer of stacked rock, and The flexible rope 302 is tightened by the take-up mechanism 400; then, the proportioned rock-like material is poured into the rock-laying space, the flexible rope 302 is gently picked up and released to ensure that the flexible rope 302 is level with the height of the first layer of rock and is in a straight state. The rock-like material is compacted and laid flat. After the first layer of rock is piled up to the same level as the flexible rope 302, a layer of mica is sprinkled on it. Then, the two ends of the flexible rope 302 are slid along the groove 3011 of the scale 301 to the height of the second layer of rock. The similar material is continued to be laid in the rock-laying space. The same method is used to lay the material layer by layer until the designed height of the rock layer is reached. Then, the end of the flexible rope 302 connected to the fixing clip 303 is untied, and the other end is taken back by the take-up mechanism 400 and then the take-up mechanism 400 is removed.

[0052] Therefore, the rock strata stacking similarity simulation experimental device provided by the present invention uses a flexible rope 302 to calibrate the height of the rock strata, which has the following advantages over the prior art that uses manual marking method for calibration:

[0053] (1) The steps for determining the thickness of simulated rock layers by marking lines have been simplified;

[0054] (2) When used to simulate parallel rock strata, the experimental device can be adjusted in height, precision and flexibility as needed, so as to achieve a more flexible, accurate and reliable simulation experiment;

[0055] (3) When used to simulate inclined rock layers, the height of the flexible ropes 302 at both ends can be adjusted to build a complete and flat rock layer with an angle, which improves the applicable scenarios and has good versatility.

[0056] (4) When used for simulating rock strata with many layers, the calibration is more accurate, greatly reducing experimental errors;

[0057] (5) Improved the clarity and accuracy of line marking, avoided the phenomenon of marking lines being erased, and improved the accuracy and convenience of simulation implementation;

[0058] (6) Easy to adjust, saving time and labor.

[0059] It should be noted that the baffle 200 can be detachably installed in the experimental platform frame 100 by means of bolt connection or snap-fit, and any installation method that meets the usage requirements is within the protection scope of this invention; Optionally, in a specific embodiment of this invention, the two ends of the experimental platform frame 100 are provided with a plurality of fixed installation holes from bottom to top, and the baffle 200 is installed in the corresponding fixed installation holes by bolt connection; In addition, the side of the baffle 200 near the rock stratum paving space is brushed with lubricating oil to reduce the friction between the baffle 200 and similar materials.

[0060] Furthermore, the aforementioned flexible rope 302 can be a type of rope such as cotton rope, waxed cotton rope, or braided rope, and any type that can meet the usage requirements is within the scope of protection of this invention; similarly, the aforementioned fixing clip 303 can be a type of part such as a clip ring, clip plate, or clip, and any type of part that can meet the usage requirements is within the scope of protection of this invention; optionally, the fixing clip 303 provided in the embodiment of this invention is a clip ring, which facilitates connection with the flexible rope 302.

[0061] The aforementioned scale 301 can be installed on both opposite sides of the experimental table frame 100 by means of welding, bonding or screw connection, etc. Any method that can meet the connection requirements is within the protection scope of this invention; Optionally, the scale 301 provided in the embodiment of this invention is anchored to both sides of the experimental table frame 100 by rivets 102.

[0062] Furthermore, the aforementioned calibration component 300 also includes a tensioning rod 304, a tensioning plate 305, and a tensioning block 306; wherein, the tensioning rod 304 vertically penetrates the groove 3011 of the scale 301, and the interior of the tensioning rod 304 is provided with a first through hole along its axial direction, through which the flexible rope 302 passes, so that the flexible rope 302 passes through the first through hole, and the tensioning rod 304 provides tension for the flexible rope 302; the fixing clip 303 is located on the side of the tensioning rod 304 near the rock stratum laying space, so as to facilitate the connection of the first end of the flexible rope 302 through the fixing clip 303; the tensioning plate 305 is provided with a wire groove 3051, and the tensioning rod... The flexible rope 302 is welded into the wire groove 3051, and the tensioning plate 305 is located on the side of the scale 301 near the rock layer laying space, so as to keep the position of the flexible rope 302 in the middle of the two opposite sides of the experimental frame 100 during the laying of similar materials, and prevent the position of the flexible rope 302 from moving or deviating; the tensioning block 306 is detachably connected to one end of the tensioning rod 304, and the tensioning block 306 is located on the side of the scale 301 away from the rock layer laying space. On the one hand, the tensioning block 306 can drive the flexible rope 302 to move along the slide 3011, and on the other hand, the tensioning block 306 can realize the anti-detachment function of the flexible rope 302.

[0063] It should be understood that after the flexible rope 302 is tensioned, the tensioning block 306 is in contact with the scale 301 and the tensioning block 306 presses against the scale 301. The static friction between the tensioning block 306 and the scale 301 prevents the tensioning block 306 from sliding down the scale 301, thereby fixing the end of the flexible rope 302. Of course, a stop can also be provided to prevent the tensioning block 306 from sliding down after the flexible rope 302 is tensioned. Any implementation that meets the usage requirements is within the scope of protection of this invention.

[0064] In addition, the tensioning block 306 and the tensioning rod 304 can be detachably connected by means of bolts or clamps. Any detachable connection method that meets the usage requirements is within the scope of protection of this invention. Optionally, the tensioning block 306 and the tensioning rod 304 provided in the embodiments of this invention are connected by threads.

[0065] Specifically, in some specific embodiments of the present invention, the tensioning rod 304 is a hollow threaded round rod with external threads, and the tensioning block 306 is a nut that is threadedly engaged with the hollow threaded round rod, so that the connection between the hollow threaded round rod and the nut can be realized by rotation. When it is necessary to adjust the relative position between the nut and the hollow threaded round rod, it is only necessary to rotate the nut, which improves convenience.

[0066] The aforementioned take-up mechanism 400 can retract the flexible rope 302 by means of rotation or reciprocating movement. Any take-up method that meets the usage requirements is within the protection scope of this invention. Optionally, the take-up mechanism 400 provided in this embodiment of the invention retracts the flexible rope 302 by means of rotation.

[0067] like Figure 5 As shown, the take-up mechanism 400 includes a take-up box 401, a winding drum 402, and a winding handle 403. The take-up box 401 has a take-up space. The winding drum 402 is rotatably disposed in the take-up space, and the second end of the flexible rope 302 is wound around the winding drum 402. The winding handle 403 is embedded inside the winding drum and is used to drive the winding drum 402 to rotate. When it is necessary to take up the rope, the winding handle 403 is turned, causing the winding handle 403 to drive the winding drum 402 to rotate. Based on the winding relationship between the flexible rope 302 and the winding drum 402, the flexible rope is wound and stored in the winding drum 402.

[0068] The take-up box 401 is fixedly provided with a first support leg and a second support leg. The winding drum 402 is rotatably disposed between the first support leg and the second support leg via a rotating shaft. At least one of the first support leg and the second support leg is provided with a clamping member 404 between it and the winding drum 402. This is so that after the flexible rope 302 is adjusted, the winding drum 402 can be clamped by the clamping member 404 to prevent the winding drum 402 from continuing to rotate, which would cause the flexible rope 302 to loosen and affect the calibration.

[0069] The clamping component 404 provided by the present invention can be a clamping sheet or a V-shaped spring, etc. Any clamping component 404 that can meet the clamping requirements is within the protection scope of the present invention; Optionally, the clamping component 404 provided in the embodiments of the present invention is a clamping sheet.

[0070] Furthermore, the aforementioned rock strata stacking similarity simulation experimental device also includes a first loading mechanism 500, a second loading mechanism 600, and a third loading mechanism 700; wherein, the first loading mechanism 500 is disposed at the upper end of the experimental platform frame 100; the second loading mechanism 600 is disposed in the rock strata laying space, and the loading direction of the second loading mechanism 600 is perpendicular to the loading direction of the first loading mechanism 500; the third loading mechanism 700 is disposed opposite to the second loading mechanism 600 in the rock strata laying space, so that the first loading mechanism 500 pressurizes the similar material in the vertical direction, and the second loading mechanism 600 and the third loading mechanism 700 pressurize the similar material in the horizontal direction.

[0071] The first loading mechanism 500, the second loading mechanism 600, and the third loading mechanism 700 described above can all achieve loading through hydraulic, electric telescopic, or pneumatic means. Any loading mechanism that can meet the loading requirements falls within the protection scope of this invention. Optionally, in this embodiment of the invention, each loading mechanism includes a hydraulic loading component 601, a pressure plate 602, and a pressure display 603. The pressure plate 602 is connected to the telescopic end of the hydraulic loading component 601, and the pressure display 603 is used to monitor the pressure, so that the hydraulic loading component 601 pressurizes similar materials through the pressure plate 602. The operator reads the pressure through the pressure display 603.

[0072] like Figures 1 to 3 As shown, a support beam 800 is also provided above the experimental platform frame 100, and a lifting drive component 900 is provided on the support beam 800 so that when the rock layer is laid to a higher height, the lifting drive component 900 can be used to lift the similar material to be laid to a preset height, thereby improving convenience.

[0073] Specifically, the aforementioned lifting drive assembly 900 includes a lifting motor 901, a wire rope 902 connected to the output shaft of the lifting motor 901, and a hook 903 hinged to the wire rope 902, so as to lift the similar material to be laid through the hook 903, and the lifting motor 901 lifts the similar material to be laid to a preset height.

[0074] The method of using the rock strata stacking similarity simulation experimental device provided by this invention to conduct parallel rock strata similarity simulation experiments is as follows:

[0075] The first step is to design the distance between the rock strata by proportionally matching the height of the similar simulation experimental device with the height of the comprehensive columnar section of the mine rock mass, and then draw the design drawings according to the scale.

[0076] The second step is to adjust each pressure plate 602 in the first group of loading mechanisms 500 to the same height, each pressure plate 602 in the second group of loading mechanisms 600 to the same horizontal position, and each pressure plate 602 in the third group of loading mechanisms 700 to the same horizontal position. Clean up the residue on the similar simulation experimental device, and gradually fix the baffles 200 brushed with lubricating oil into the fixed mounting holes of the experimental platform frame 100 according to the stacking height.

[0077] The third step is to slide the calibration component 300 through the slide groove 3011 to the zero mark of the scale 301, pass the flexible rope 302 through the first through hole of the tension rod 304 and connect it to the tension rod 304 at the other end, and then lock it with the fixing clip 303; according to the height designed in the drawing, slide the tension blocks 306 at both ends to the height of the first layer of piled rock, so that the flexible rope 302 is level with the height of the first layer of piled rock; tighten the flexible rope 302 by using the winding handle 403 through the winding mechanism 400 until the winding drum can no longer rotate, so that the flexible rope 302 is in a taut state through the tension plate 305 and the tension rod 304; lock the winding drum 402 with the clamping piece 404 at the end of the winding drum 402.

[0078] The fourth step is to pour the prepared rock-like material into the rock-laying space formed by the experimental frame 100 and the baffle 200. Gently pick up the flexible rope 302 and then release it to ensure that the flexible rope 302 is straight. Compact and flatten the rock layer until it is piled up at the same level as the flexible rope 302.

[0079] Fifth step: After laying the first layer of rock and sprinkling a layer of mica, move the flexible ropes 302 at both ends to the designed height of the second layer, and lay similar materials into the rock laying space. Continue to lay the rock layers upwards according to the steps in the fourth step until the designed height of the rock layer is reached.

[0080] The sixth step is to disconnect the flexible rope 302 from the fixed connector 303 at one end of the tensioning rod 304. After disconnecting the other end from the fixed connector 303, the rope is retracted through the take-up mechanism 400, and then the take-up mechanism 400 is removed.

[0081] The above steps describe the technical method for designing parallel rock strata. This experimental setup can also be used to design similar simulation experiments of inclined rock strata. The method involves designing the height of the inclined rock strata according to the required rock strata scale, fixing the position of the flexible rope 302 at one end of the experimental platform frame 100, and then fixing the height of the tension block 306 and the flexible rope 302 at the other end. This process is repeated following the method for laying parallel rock strata to obtain the designed similar simulation experiment of the inclined rock mass.

[0082] The terms "first" and "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units may include steps or units not listed, but rather steps or units not listed.

[0083] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A simulated experimental device for rock strata stacking, characterized in that, include: Experimental platform frame; A baffle is detachably installed in the experimental table frame, and the baffle and the experimental table frame enclose a rock layer laying space for laying a rock layer similar to the rock layer. The side of the baffle near the rock layer laying space is brushed with lubricating oil. A calibration component is disposed on two opposite sides of the experimental platform frame. The calibration component includes a scale, a flexible rope, and a fixing clip. The experimental platform frame includes two oppositely disposed first sides and second sides. A scale is disposed on both the first side and the second side, and the scale has a groove extending in the vertical direction. The fixing clip is located on the first side. The first end of the flexible rope passes through the groove on the scale on the first side and is connected to the fixing clip. The calibration assembly further includes: a tension rod, which vertically passes through a groove in the scale, and the tension rod has a first through hole along its axial direction, through which the flexible rope passes; a tension plate, which has a wire groove, in which the tension rod is welded, and the tension plate is located on the side of the scale near the rock stratum laying space; and a tension block, which is detachably connected to one end of the tension rod, and the tension block is located on the side of the scale away from the rock stratum laying space. The tensioning rod is a threaded rod with external threads, and the tensioning block is a nut that can be threadedly connected to the threaded rod. A take-up mechanism is located on the second side, and the second end of the flexible rope passes through a groove on the scale on the second side and is connected to the take-up mechanism.

2. The rock strata stacking similarity simulation experimental device according to claim 1, characterized in that, The take-up mechanism includes: a take-up box body with a take-up space; a winding drum rotatably disposed in the take-up space, with the second end of the flexible rope wound around the winding drum; and a crank handle connected to the winding drum for driving the winding drum to rotate.

3. The rock strata stacking similarity simulation experimental device according to claim 2, characterized in that, The take-up box is fixedly provided with a first leg and a second leg, the winding drum is rotatably disposed between the first leg and the second leg, and at least one of the first leg and the second leg is provided with a clamping device between itself and the winding drum.

4. The rock strata stacking similarity simulation experimental device according to claim 1, characterized in that, Also includes: The first loading mechanism is located at the upper end of the experimental platform frame; the second loading mechanism is located in the rock stratum paving space, and the loading direction of the second loading mechanism is perpendicular to the loading direction of the first loading mechanism; the third loading mechanism is located opposite to the second loading mechanism in the rock stratum paving space.

5. The rock strata stacking similarity simulation experimental device according to claim 4, characterized in that, Each loading mechanism includes a hydraulic loading element, a pressure plate connected to the telescopic end of the hydraulic loading element, and a pressure display for monitoring the applied pressure.

6. The rock strata stacking similarity simulation experimental device according to claim 1, characterized in that, A support beam is also provided above the experimental platform frame, and a lifting drive component is provided on the support beam to lift the similar material to be laid to a preset height.

7. The rock strata stacking similarity simulation experimental device according to claim 6, characterized in that, The lifting drive assembly includes a lifting motor, a wire rope connected to the output shaft of the lifting motor, and a hook hinged to the wire rope.

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