Geological structure deformation physical deposition simulation experiment equipment and method

Abstract

The invention belongs to the technical field of geological experiments, and particularly relates to geological structure deformation physical deposition simulation experiment equipment and method.The geological structure deformation physical deposition simulation experiment equipment comprises an experiment box formed by combining a box body and a glass plate, the glass plate is arranged in front of the experiment box, and a partition plate is installed in the experiment box in a sliding mode and divides the box body into an experiment area and a regulation and control area; a base is arranged at the bottom of the experiment box, two supporting columns are symmetrically and fixedly installed on the rear portion of the base, the upper ends of the two supporting columns are rotationally connected with transverse rods, and funnels are hung on the two transverse rods and used for storing experiment materials. According to the invention, a changeable experiment environment can be realized, the partition plate capable of moving in the experiment box can extrude the partition plate towards one side due to mutual extrusion of material deposition, the partition plate can be pushed to move under the extrusion effect, and a plurality of elastic mechanisms on one side of the partition plate are used for simulating the influence of geological deposition on adjacent geology.

Description

Technical Field

[0001] The invention belongs to the technical field of geological experiments, and in particular relates to geological structure deformation physical deposition simulation experimental equipment and method. Background Art

[0002] Tectonic deformation is the deformation of rocks caused by crustal movement (tectonic movement), which shows various types of structures, such as folds, faults, joints, etc. The main influencing factor of geological structural deformation is crustal movement, including pressure and tension. The strong squeezing force generated by crustal movement is the main cause of rock deformation. In addition, tectonic action can also cause horizontal rock layers to become inclined or even curved, or cause continuous rock layers to be disconnected or dislocated. The impact of geophysical settlement is huge. In order to better understand geological changes, geological structural deformation physical sedimentation simulation experiments are used to predict and prevent the occurrence of natural disasters.

[0003] The prior art (publication number CN116229812A) discloses a geological structure deformation physical deposition simulation experimental device and method, wherein the geological structure deformation physical deposition simulation experimental device comprises a support frame, a deposition simulation experimental box, a material feeding and discharging mechanism and a pressure control mechanism, wherein the top of the support frame is fixedly connected to the deposition simulation experimental box, and a top cover hole is opened on the top of the deposition simulation experimental box, and a transparent top cover is sealed and contacted in the top cover hole.

[0004] Generally, when conducting physical experiments on geological structure deformation, an experimental box with a fixed shape structure is used, and experimental materials are directly added into the box for observation. However, there are many variables in the physical deformation of geological structures, and there are too many restrictions on conducting experiments in a fixed box, which also has limited effect on observing dynamic changes during the experiment. Summary of the invention

[0005] Based on the background technology, when conducting physical experiments on geological structure deformation, fixed-shape experimental boxes are used, and experimental materials are directly added into the box for observation. However, there are many variables in the physical deformation of geological structures, and there are too many restrictions on conducting experiments in a fixed box, and the observation effect of dynamic changes during the experiment is limited. The present invention proposes a geological structure deformation physical deposition simulation experimental device and method.

[0006] The present invention provides a geological structure deformation physical deposition simulation experiment device, comprising an experiment box composed of a box body and a glass plate, wherein the glass plate is arranged in front of the experiment box, a partition is slidably installed in the experiment box, and the partition divides the box body into an experiment area and a control area, a base is arranged at the bottom of the experiment box, and two pillars are symmetrically fixedly installed behind the base, and the upper ends of the two pillars are rotatably connected to a cross bar, and funnels are hung on the two cross bars, and the funnels are used to store experimental materials;

[0007] A pressing mechanism is arranged between the partition and an inner wall of one side of the box body, and the pressing mechanism is arranged in the control area. The pressing mechanism includes a first slide rail and a second slide rail, and an elastic mechanism is clamped between the first slide rail and the second slide rail. The first slide rail is arranged in close contact with the inner wall of the box body, and the second slide rail is arranged in close contact with the partition. The elastic mechanism includes a spring and a threaded shaft, one end of the spring is clamped with the second slide rail, and the other end of the spring is fixedly connected with a connecting block, the threaded shaft is inserted in the connecting block, and the end of the threaded shaft away from the spring is clamped with the first slide rail.

[0008] Preferably, a second clamping block is provided at the upper end of the second slide rail, a mounting plate is fixedly provided at the upper end of the partition, a rubber strip is provided on one side of the mounting plate, the second clamping block sleeve is provided on the surface of the mounting plate, and the inner wall of the second clamping block is in contact with the surface of the rubber strip.

[0009] Preferably, the upper end of the second clamping block is fixedly connected to the limiting shaft, the upper end of the first slide rail is provided with a first clamping block, the first clamping block sleeve is provided on the edge of the box body, the first clamping block is provided with a sliding sleeve, and the limiting shaft is provided through the sliding sleeve.

[0010] Preferably, the end of the threaded shaft away from the spring is fixedly connected to a first slider, the first slider is slidably arranged in the first slide rail, and elastic cards are fixedly arranged on both the left and right sides of the upper and lower surfaces of the first slider, and the elastic cards are clamped on the surface of the first slide rail. According to experimental needs, the elastic mechanism is clamped in different positions for experiments, the first slider can slide up and down in the first slide rail, and multiple elastic cards with elasticity are clamped on the surface of the first slide rail to fix the position of the first slider.

[0011] Preferably, a threaded sleeve is rotatably connected to the surface of the connection block on a side away from the spring, the threaded shaft is threadedly inserted in the threaded sleeve, and the threaded shaft is inserted in the spring.

[0012] Preferably, one end of the spring away from the threaded shaft is fixedly connected to a second slider, the second slider is slidably arranged in the second slide rail, an insertion shaft is inserted into the second slider, and a nut is threadedly sleeved on one end of the insertion shaft.

[0013] Preferably, slots are provided on the inner walls on both sides of the second slide rail, and the insertion shaft is arranged through the slots. Inwardly recessed grooves are provided on both sides of the second slide rail, and the slots are provided in the grooves.

[0014] Preferably, the lower ends of the first slide rail and the second slide rail are both provided with openings, the glass plate is made of transparent material and has scale lines on its surface, and the lower end of one side of the partition is provided with an abutment plate.

[0015] Preferably, both of the cross bars are provided with sliding grooves, a mounting shaft is inserted at the position where the two sliding grooves intersect each other, the funnel is fixedly connected to the lower end of the mounting shaft, a limit block for limiting position is provided at the upper end of the mounting shaft, and a flow valve for controlling flow is provided at the lower end of the funnel.

[0016] The present invention also provides an experimental method of a geological structure deformation physical deposition simulation experimental device, comprising the following steps:

[0017] Step S1: stack the materials used for the experiment in the experimental area of ​​the box in sequence, and the experimenter can directly observe the deposition status of the materials through the transparent glass plate;

[0018] Step S2: photographing and recording the experimental box at multiple time points on the timeline, so as to understand the changes that will occur to each material in a static state over time when the various materials are directly stacked;

[0019] Step S3: Due to the mutual extrusion of material deposition, the partition will be squeezed to one side, and the partition will be pushed to move under the action of extrusion. Multiple elastic mechanisms on one side of the partition are used to simulate the influence of geological deposition on adjacent geology;

[0020] Step S4: The experimenter can directly move and change the position of the funnel, and make the experimental material fall by twisting the flow valve, so as to observe the influence of the same amount of experimental material continuously stacked at different positions, different amounts of experimental material continuously stacked, and different speeds of experimental material continuously stacked on the geology;

[0021] Step S5: The pressure mechanism in the control area can be increased or decreased as needed. The experimenter can rotate the threaded sleeve. As the threaded sleeve rotates, its position relative to the threaded shaft can be changed, thereby changing the relative position between the threaded shaft and the spring, which can change the compression and tension state of the spring. Correspondingly, its force on the partition will also change. Multiple elastic mechanisms can be added between the first slide rail and the second slide rail to work together. The pressure mechanism can be used to simulate the impact of geological changes on adjacent geology. By observing the compression condition of the elastic mechanism and increasing or decreasing the elastic mechanism, it can be used to judge the pressure condition under the geological stability state.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The present invention can realize an adjustable experimental environment. When conducting geological experiments, the changes that will occur to various materials in a static state over time can be obtained as needed. The effects of continuous superposition of the same amount of experimental materials at different positions, continuous superposition of different amounts of experimental materials, and continuous superposition of experimental materials at different speeds on geology can also be obtained, and multiple experimental variables can be operated.

[0024] 2. The present invention can realize a changeable experimental environment. A movable partition in the experimental box will squeeze the partition to one side due to the mutual extrusion of material deposition, and the partition will be pushed to move under the action of extrusion. Multiple elastic mechanisms on one side of the partition are used to simulate the influence of geological deposition on adjacent geology. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the front structure of a geological structure deformation physical deposition simulation experimental device proposed by the present invention;

[0026] Figure 2 This is a schematic diagram of the back structure of a geological structure deformation physical deposition simulation experimental device proposed by the present invention;

[0027] Figure 3 This is a schematic diagram of the internal structure of the experimental box;

[0028] Figure 4 It is a front structural schematic diagram of the pressing mechanism and the elastic mechanism;

[0029] Figure 5 It is a schematic diagram of the back structure of the pressing mechanism and the elastic mechanism;

[0030] Figure 6 It is a schematic diagram of the top structure of the pressing mechanism and the elastic mechanism;

[0031] Figure 7 It is a schematic diagram of the planar structure of the pressing mechanism and the elastic mechanism;

[0032] Figure 8 This is a schematic diagram of the installation structure of the funnel.

[0033] In the figure: 1 glass plate, 2 base, 3 pillar, 4 cross bar, 5 mounting shaft, 6 limit block, 7 funnel, 8 flow valve, 9 box, 10 partition, 11 slide groove, 12 rubber strip, 13 second clamping block, 14 limit shaft, 15 first clamping block, 16 first slide rail, 17 second slide rail, 18 plate, 19 spring, 20 mounting plate, 21 elastic card, 22 sliding sleeve, 23 threaded shaft, 24 threaded sleeve, 25 connecting block, 26 slot, 27 second slider, 28 plug shaft, 29 groove, 30 nut, 31 first slider. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] Reference Figure 1-Figure 8A geological structure deformation physical deposition simulation experiment device, comprising an experiment box composed of a box body 9 and a glass plate 1, the glass plate 1 is arranged in front of the experiment box, a partition 10 is slidably installed in the experiment box, the partition 10 divides the box body 9 into an experimental area and a control area, a base 2 is arranged at the bottom of the experiment box, two pillars 3 are symmetrically fixedly installed behind the base 2, the upper ends of the two pillars 3 are rotatably connected with a cross bar 4, and funnels 7 are hung on the two cross bars 4, and the funnel 7 is used to store experimental materials;

[0036] A pressing mechanism is arranged between the partition 10 and an inner wall of one side of the box body 9, and the pressing mechanism is arranged in the regulating area. The pressing mechanism includes a first slide rail 16 and a second slide rail 17. An elastic mechanism is clamped between the first slide rail 16 and the second slide rail 17. The first slide rail 16 is arranged in close contact with the inner wall of the box body 9, and the second slide rail 17 is arranged in close contact with the partition 10. The elastic mechanism includes a spring 19 and a threaded shaft 23. One end of the spring 19 is clamped with the second slide rail 17, and the other end of the spring 19 is fixedly connected with a connecting block 25. The threaded shaft 23 is inserted in the connecting block 25, and the end of the threaded shaft 23 away from the spring 19 is clamped with the first slide rail 16.

[0037] The second clamping block 13 is disposed at the upper end of the second slide rail 17, a mounting plate 20 is fixedly disposed at the upper end of the partition 10, a rubber strip 12 is disposed on one side of the mounting plate 20, the second clamping block 13 is sleeved on the surface of the mounting plate 20, and the inner wall of the second clamping block 13 is in contact with the surface of the rubber strip 12. The rubber strip 12 is made of rubber material, and the second slide rail 17 is clamped with the partition 10 through the second clamping block 13, so that the position can be ensured to be stable during the clamping, and the second clamping block 13 is prevented from sliding randomly.

[0038] The upper end of the second clamping block 13 is fixedly connected with the limit shaft 14, and the upper end of the first slide rail 16 is provided with the first clamping block 15, which is sleeved on the edge of the box body 9, and the first clamping block 15 is provided with a sliding sleeve 22, and the limit shaft 14 is provided through the sliding sleeve 22. The first slide rail 16 is clamped on the inner wall of the box body 9 through the first clamping block 15, and the limit shaft 14 is provided between the second clamping block 13 and the first clamping block 15. The limit shaft 14 ensures that the first slide rail 16 and the second slide rail 17 are on the same straight line, ensuring the stability of the structure and avoiding the failure of the experiment due to uneven force.

[0039] The end of the threaded shaft 23 away from the spring 19 is fixedly connected to the first slider 31, which is slidably arranged in the first slide rail 16. Elastic cards 21 are fixedly arranged on the left and right sides of the upper and lower surfaces of the first slider 31, and the elastic cards 21 are clamped on the surface of the first slide rail 16. According to experimental needs, the elastic mechanism is clamped at different positions for experiments, and the first slider 31 can slide up and down in the first slide rail 16. Multiple elastic cards 21 with elasticity are clamped on the surface of the first slide rail 16 to fix the position of the first slider 31.

[0040] A threaded sleeve 24 is rotatably connected to the surface of the connection block 25 away from the spring 19, and the threaded shaft 23 is threadedly inserted in the threaded sleeve 24, and the threaded shaft 23 is inserted in the spring 19. By rotating the threaded sleeve 24, the position of the connection block 25 relative to the threaded shaft 23 can be changed as the threaded sleeve 24 rotates, thereby changing the expansion and contraction state of the spring 19. The spring 19 exerts a force on the partition 10, and the partition 10 simulates the geological pressure change on one side in the geological experiment.

[0041] The end of the spring 19 away from the threaded shaft 23 is fixedly connected to the second slider 27, which is slidably arranged in the second slide rail 17. The second slider 27 is inserted with an insertion shaft 28, and one end of the insertion shaft 28 is threadedly sleeved with a nut 30. The second slider 27 can move up and down in the second slide rail 17, and the insertion shaft 28 is passed through the second slide rail 17 and the second slider 27 at the same time, and is tightened and fixed by the nut 30, so as to achieve the fixing effect of the second slider 27 relative to the position on the second slide rail 17, and limit the height position of the elastic mechanism.

[0042] The inner walls on both sides of the second slide rail 17 are provided with slots 26, through which the insertion shaft 28 is arranged, and both sides of the second slide rail 17 are provided with inwardly recessed grooves 29, in which the slots 26 are arranged. The inner wall of the second slide rail 17 is arranged to be an inwardly recessed structure, so as to increase the contact area between the second slider 27 and the inner wall of the second slide rail 17, thereby increasing the friction force and facilitating the fixing of the position of the second slider 27.

[0043] The lower ends of the first slide rail 16 and the second slide rail 17 are both provided with openings. The glass plate 1 is made of transparent material and has scale lines on its surface. A stop plate 18 is provided at the lower end of one side of the partition 10. The opening at the lower end of the first slide rail 16 is used for the first slider 31 to slide out, and the opening at the lower end of the second slide rail 17 is used for the second slider 27 to slide out. The transparent material and scale lines facilitate observation by the experimenter.

[0044] Slide grooves 11 are provided on the two cross bars 4, and the installation shaft 5 is inserted at the position where the two slide grooves 11 intersect each other. The funnel 7 is fixedly connected to the lower end of the installation shaft 5, and the upper end of the installation shaft 5 is provided with a limit block 6 for limiting, and the lower end of the funnel 7 is provided with a flow valve 8 for controlling the flow. When conducting experiments, adding experimental materials on the geological surface will directly affect the geological structure, so the funnel 7 is set on the top, the two cross bars 4 can be rotated, and the corresponding position points of the intersection of the two cross bars 4 can be changed arbitrarily, so that the funnel 7 can be moved to different positions, and the amount of experimental materials falling is controlled by the flow valve 8 to conduct experimental observations.

[0045] An experimental method for a geological structure deformation physical deposition simulation experimental device comprises the following steps:

[0046] Step S1: stack the materials used for the experiment in the experimental area of ​​the box 9 in sequence, and the experimenter can directly observe the deposition status of the materials through the transparent glass plate 1;

[0047] Step S2: photographing and recording the experimental box at multiple time points on the timeline, so as to understand the changes that will occur to each material in a static state over time when the various materials are directly stacked;

[0048] Step S3: In a static state, the vertical relationship between the materials will change, and at the same time, a force will be generated in the horizontal direction. Due to the mutual squeezing of the deposited materials, the partition 10 will be squeezed to one side, and the partition 10 will be pushed to move under the action of squeezing. The multiple elastic mechanisms on one side of the partition 10 are used to simulate the influence of geological deposition on the adjacent geology;

[0049] Step S4: The experimental materials are stored in the funnel 7. According to the needs of the experiment, the position of the funnel 7 can be changed by installing the upper end of the shaft 5. The crossbar 4 and the support 3 are movably connected. The experimenter can directly move and change the position of the funnel 7. By twisting the flow valve 8, the experimental materials fall. The effects of the same amount of experimental materials continuously stacked at different positions, different amounts of experimental materials continuously stacked, and different speeds of experimental materials continuously stacked on the geology can be observed.

[0050] Step S5: The pressing mechanism in the control area can be increased or decreased as needed. The first block 15 in the pressing mechanism is stuck on the upper end of the inner wall of the box body 9, and the second block 13 is stuck on the upper end of the partition 10. The first block 15 and the second block 13 are connected by a limit shaft 14 to keep the same position. One or more elastic mechanisms can be installed between the first slide rail 16 and the second slide rail 17. The experimenter can rotate the threaded sleeve 24. As the threaded sleeve 24 rotates, its position relative to the threaded shaft 23 can be changed, thereby changing the relative position between the threaded shaft 23 and the spring 19, which can change the compression and tension state of the spring 19. Correspondingly, its force on the partition 10 will also change. Multiple elastic mechanisms can be added simultaneously between the first slide rail 16 and the second slide rail 17 to work together. The pressing mechanism can be used to simulate the impact of geological changes on adjacent geology. By observing the compression condition of the elastic mechanism and increasing or decreasing the elastic mechanism, it can be used to judge the pressure condition under the geological stability state.

[0051] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A geological structure deformation physical deposition simulation experimental equipment, characterized in that: The invention comprises an experimental box composed of a box body (9) and a glass plate (1), wherein the glass plate (1) is arranged in front of the experimental box, a partition (10) is slidably installed in the experimental box, and the partition (10) divides the box body (9) into an experimental area and a control area, a base (2) is arranged at the bottom of the experimental box, and two pillars (3) are symmetrically fixedly installed behind the base (2), and the upper ends of the two pillars (3) are rotatably connected to a cross bar (4), and funnels (7) are hung on the two cross bars (4), and the funnels (7) are used to store experimental materials; A pressing mechanism is provided between the partition (10) and an inner wall of one side of the box body (9), and the pressing mechanism is provided in the control area. The pressing mechanism comprises a first slide rail (16) and a second slide rail (17), and an elastic mechanism is clamped between the first slide rail (16) and the second slide rail (17). The first slide rail (16) is arranged in close contact with the inner wall of the box body (9), and the second slide rail (17) is arranged in close contact with the partition (10). The elastic mechanism comprises a spring (19) and a threaded shaft (23), one end of the spring (19) is clamped with the second slide rail (17), and the other end of the spring (19) is fixedly connected with a connecting block (25), and the threaded shaft (23) is inserted in the connecting block (25), and the end of the threaded shaft (23) away from the spring (19) is clamped with the first slide rail (16).

2. The geological structure deformation physical deposition simulation experimental equipment according to claim 1, characterized in that: A second clamping block (13) is arranged at the upper end of the second slide rail (17); a mounting plate (20) is fixedly arranged at the upper end of the partition (10); a rubber strip (12) is arranged on one side of the mounting plate (20); the second clamping block (13) is sleeved on the surface of the mounting plate (20), and the inner wall of the second clamping block (13) is in contact with the surface of the rubber strip (12).

3. The geological structure deformation physical deposition simulation experimental equipment according to claim 2 is characterized in that: The upper end of the second clamping block (13) is fixedly connected to the limit shaft (14); the upper end of the first slide rail (16) is provided with a first clamping block (15); the first clamping block (15) is sleeved on the edge of the box body (9); a sliding sleeve (22) is provided on the first clamping block (15); and the limit shaft (14) is provided through the sliding sleeve (22).

4. The geological structure deformation physical deposition simulation experimental equipment according to claim 1, characterized in that: One end of the threaded shaft (23) away from the spring (19) is fixedly connected to a first slider (31), and the first slider (31) is slidably arranged in the first slide rail (16). Elastic cards (21) are fixedly arranged on both left and right sides of the upper and lower surfaces of the first slider (31), and the elastic cards (21) are clamped on the surface of the first slide rail (16).

5. The geological structure deformation physical deposition simulation experimental equipment according to claim 1, characterized in that: A threaded sleeve (24) is rotatably connected to the surface of the connection block (25) on the side away from the spring (19), the threaded shaft (23) is threadedly inserted in the threaded sleeve (24), and the threaded shaft (23) is inserted in the spring (19).

6. The geological structure deformation physical deposition simulation experimental equipment according to claim 1, characterized in that: One end of the spring (19) away from the threaded shaft (23) is fixedly connected to a second slider (27), the second slider (27) is slidably arranged in the second slide rail (17), an insertion shaft (28) is inserted into the second slider (27), and a nut (30) is threadedly sleeved on one end of the insertion shaft (28).

7. The geological structure deformation physical deposition simulation experimental equipment according to claim 6, characterized in that: The inner walls on both sides of the second slide rail (17) are provided with slots (26), and the insertion shaft (28) is arranged through the slots (26). The two sides of the second slide rail (17) are provided with inwardly recessed grooves (29), and the slots (26) are arranged in the grooves (29).

8. The geological structure deformation physical deposition simulation experimental equipment according to claim 1, characterized in that: The lower ends of the first slide rail (16) and the second slide rail (17) are both provided with openings, the glass plate (1) is made of a transparent material and has scale lines on its surface, and the lower end of one side of the partition plate (10) is provided with a stop plate (18).

9. The geological structure deformation physical deposition simulation experimental equipment according to claim 1, characterized in that: The two cross bars (4) are each provided with a slide groove (11), a mounting shaft (5) is inserted at a position where the two slide grooves (11) intersect each other, the funnel (7) is fixedly connected to the lower end of the mounting shaft (5), a limit block (6) for limiting position is provided at the upper end of the mounting shaft (5), and a flow valve (8) for controlling flow is provided at the lower end of the funnel (7).

10. The experimental method of the geological structure deformation physical deposition simulation experimental equipment according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step S1: stacking the materials used for the experiment in the experimental area of ​​the box (9) in sequence, and the experimenter can directly observe the deposition status of the materials through the transparent glass plate (1); Step S2: photographing and recording the experimental box at multiple time points on the timeline, so as to understand the changes that will occur to each material in a static state over time when the various materials are directly stacked; Step S3: Due to the mutual squeezing of the deposited materials, the partition (10) is squeezed toward one side, and the partition (10) is pushed to move under the action of squeezing. The multiple elastic mechanisms on one side of the partition (10) are used to simulate the influence of geological deposition on the adjacent geology; Step S4: The experimenter can directly move and change the position of the funnel (7), and make the experimental material fall by twisting the flow valve (8), so as to observe the influence of the same amount of experimental material continuously stacked at different positions, different amounts of experimental material continuously stacked, and different speeds of experimental material continuously stacked on the geology; Step S5: The pressure mechanism in the control area can be increased or decreased as needed. The experimenter can rotate the threaded sleeve (24). As the threaded sleeve (24) rotates, its position relative to the threaded shaft (23) can be changed, thereby changing the relative position between the threaded shaft (23) and the spring (19), which can change the compression and tension state of the spring (19). Correspondingly, its force on the partition (10) will also change. Multiple elastic mechanisms can be added simultaneously between the first slide rail (16) and the second slide rail (17) to work together. The pressure mechanism can be used to simulate the impact of geological changes on adjacent geology. By observing the compression state of the elastic mechanism and increasing or decreasing the elastic mechanism, it can be used to judge the pressure condition under the geological stability state.

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