Testing device for simulating whole process of generation of seafloor gas-bearing slope weakening landslide

Abstract

The invention relates to the technical field of marine rock and soil tests, in particular to a test device for simulating the whole process of generation of seafloor gas-bearing slope weakening landslide, which comprises a device shell, a baffle is fixedly connected to the bottom of a simulation bin, a vibration structure is arranged at the bottom of the device shell, and an exhaust structure is arranged on one side of the simulation bin. And a tide generation structure is arranged on the side, away from the exhaust structure, of the device shell, a wave generation structure is fixedly connected to the surface of the partition plate, and a top cover is connected to the top of the device shell in an inserted mode. The vibration structure, the exhaust structure, the tide generation structure and the wave generation structure are arranged, the whole process of gas-bearing slope weakening and landslide generation is visually displayed, time, material resources and manpower are saved, the vibration structure and the wave generation structure are arranged, more seismic wave types and wave types can be simulated, the actual situation is better met, and the simulation effect is good. And the test accuracy is ensured to a certain extent.

Description

Technical Field

[0001] The invention belongs to the technical field of marine rock and soil testing, and in particular relates to a testing device for simulating the whole process of weakening landslide of a submarine gas-containing slope. Background Art

[0002] Compared with land slopes, underwater slopes are affected not only by factors such as slope rock and soil strength, slope angle, soil internal friction angle and internal friction angle, but also by other adverse factors such as water pressure, erosion force, wave load, etc.; in particular, deepwater environment slopes containing hydrate layers are also affected by factors such as high air pressure generated by hydrate decomposition, seismic excitation, and ocean turbidity currents.

[0003] At present, the research on these problems adopts the field test method, which has a long test cycle and consumes a lot of material and human resources. Therefore, we proposed a test device to simulate the whole process of weakening landslide on submarine gas-bearing slope. Summary of the invention

[0004] In order to overcome the above-mentioned technical problems, the purpose of the present invention is to provide a test device for simulating the whole process of weakening landslide on submarine gas-bearing slope, so as to solve the problem raised in the above-mentioned background technology that the current research on these problems adopts the field test method, which has a long test cycle and consumes more material and manpower.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a test device for simulating the whole process of weakening landslide of submarine gas-containing slope, comprising a device shell, a water storage tank is arranged inside the device shell, a simulation tank is arranged inside the device shell, the bottom of the simulation tank is movably connected with a simulation slope, the bottom of the simulation tank is fixedly connected with a baffle, the bottom of the device shell is provided with a vibration structure, the vibration structure comprises a bottom plate, the surface of the bottom plate is fixedly connected with four groups of limit rods, the surface of the limit rods is slidably connected with a moving plate, the surface of the bottom plate is fixedly connected with six groups of springs, the surface of the bottom plate is fixedly connected with two groups of fixed seats, the surface of one group of the fixed seats is fixedly connected with a motor, the output end of the motor is fixedly connected with a rotating shaft, the surface of the rotating shaft is fixedly connected with two groups of cams, one side of the simulation tank is provided with an exhaust structure, the exhaust structure comprises an air pump 1, the output end of the air pump 1 is fixedly connected with a connecting pipe 1, the connecting pipe The surface of one is fixedly connected with three groups of connecting pipes two, the surface of the connecting pipe two is fixedly connected with a nozzle, a pressure relief valve one is fixedly connected with the surface of one side of the device shell, a tidal generating structure is arranged on the side of the device shell away from the exhaust structure, the tidal generating structure includes an air pump two, the air pump two is fixedly connected to the top of the device shell, the inner wall of the device shell is fixedly connected with a partition, the top of the device shell is fixedly connected with a pressure relief valve two, the surface of the partition is fixedly connected with a wave-making structure, the wave-making structure includes a push plate, two groups of fixing rods are fixedly connected inside the push plate, the surface of the fixing rod is rotatably connected with an electric telescopic rod, the inside of the push plate is slidably connected with a telescopic part, the surface of the telescopic part is fixedly connected with four groups of limiting plates, a sliding groove is provided inside the push plate, a top cover is plugged into the top of the device shell, a spring buckle is fixedly connected to the surfaces of the device shell and the top cover, and a sealing pad layer is fixedly connected to the bottom of the top cover.

[0006] Preferably, a pressure gauge is fixedly connected to the surface of the pressure relief valve 1 and the pressure relief valve 2, the pressure relief valve 1 is connected to the simulation tank, and the pressure relief valve 2 is connected to the water storage tank.

[0007] Preferably, the three groups of connecting pipes 2 are arranged at an angle, the connecting pipes 2 and the nozzles are arranged inside the simulated slope, the simulated slope is arranged at an angle, and the bottom height of the simulated slope is not higher than the height of the baffle.

[0008] Preferably, four groups of limit rods are fixedly connected at the four corners of the base plate, a circular groove is opened at the four corners of the movable plate, the movable plate is slidably connected to the surface of the four groups of limit rods through the four groups of circular grooves, the device housing is fixedly connected to the surface of the movable plate, the two ends of the six groups of springs are respectively fixedly connected to the top of the base plate and the bottom of the movable plate, the six groups of springs are symmetrically arranged, the surface of one group of fixed seats is fixedly connected to the motor, the interior of the other group of fixed seats is rotatably connected to the rotating shaft, and the surface of the cam is in contact with the bottom of the movable plate.

[0009] Preferably, a square groove 1 is provided on the surface of the push plate, the fixed rod is fixedly connected to the inner wall of the square groove 1, the electric telescopic rod is fixedly connected to the surface of the partition close to the simulated slope, a circular groove 2 is provided at the output end of the electric telescopic rod, and the output end of the electric telescopic rod is rotatably connected to the surface of the fixed rod through the circular groove 2, the telescopic part is I-shaped, an I-shaped groove is provided inside the push plate, the telescopic part is slidably connected in the I-shaped groove, the limit plate is slidably connected inside the slide groove, and the side surface of the limit plate is in contact with the inner wall of the slide groove.

[0010] Preferably, the spring buckle comprises a buckle body and a hanging ear, the buckle body is fixedly connected to the surface of the device housing, and the hanging ear is fixedly connected to the surface of the top cover.

[0011] Preferably, the sealing pad layer is made of rubber material, the motor, the air pump 1, the air pump 2 and the electric telescopic rod are all electrically connected to an external power supply, and the device housing is made of a transparent acrylic plate.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The test device for simulating the whole process of weakening and landslide generation of submarine gas-bearing slope is provided with a vibration structure, an exhaust structure, a tidal generating structure and a wave-making structure. The vibration structure is used to simulate earthquakes, and then the influence of earthquakes on gas-bearing slopes is studied. The exhaust structure and the tidal generating structure can be used to simulate the influence of gas dissolution in the gas-bearing slope on the gas-bearing slope when creating tides. The wave-making structure can be used to simulate sea waves, and then the change of the gas-bearing slope under this condition can be studied. The vibration structure, the exhaust structure, the tidal generating structure and the wave-making structure can be used to study the influence on the transformation of the gas-bearing slope from four angles of vibration, gas, tide and wave, and the whole process of weakening and landslide generation of the gas-bearing slope is intuitively demonstrated without the need for on-site tests, thus saving time, material resources and manpower.

[0014] 2. The test device for simulating the whole process of weakening landslide on submarine gas-containing slope is provided with a vibration structure and a wave-making structure. The motor drives the rotating shaft to rotate, and the rotating shaft drives the cam to rotate. The cam lifts the moving plate back and forth, and the moving plate is damped and reciprocated by the spring to achieve a more realistic simulation of the earthquake. By changing parameters such as the speed of the motor, different types of seismic waves can be simulated. The two sets of electric telescopic rods simultaneously push the push plate to move, and the push plate pushes the water inside the simulation chamber to generate waves, thereby simulating the waves. When the two sets of electric telescopic rods push the push plate separately, the push plate can rotate and retract with the electric telescopic rods, thereby simulating irregular waves. More types of seismic waves and waves can be simulated, which are more in line with the actual situation, and the accuracy of the test can be guaranteed to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic front view of the structure of the present invention;

[0016] Figure 2 It is a schematic side view of the structure of the present invention;

[0017] Figure 3 It is a front cross-sectional view of the structure of the present invention;

[0018] Figure 4 It is a schematic diagram of the explosion structure of the housing and the top cover of the device of the present invention;

[0019] Figure 5 A cross-sectional view of the internal structure of the housing of the device of the present invention;

[0020] Figure 6 It is a schematic diagram of the structural explosion of the vibration structure of the present invention;

[0021] Figure 7 It is a structural exploded cross-sectional view of the wave-making structure of the present invention.

[0022] In the figure: 1. device shell; 2. water storage tank; 3. simulation tank; 4. simulation slope; 5. baffle; 6. vibration structure; 61. bottom plate; 62. limit rod; 63. moving plate; 64. spring; 65. motor; 66. rotating shaft; 67. cam; 68. fixed seat; 7. exhaust structure; 71. air pump one; 72. connecting pipe one; 73. connecting pipe two; 74. nozzle; 75. pressure relief valve one; 8. tidal generating structure; 81. air pump two; 82. partition; 83. pressure relief valve two; 9. wave-making structure; 91. push plate; 92. fixing rod; 93. electric telescopic rod; 94. telescopic member; 95. limit plate; 96. slide groove; 10. top cover; 11. spring buckle; 12. sealing cushion layer. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] See also Figure 1-7 , an embodiment provided by the present invention:

[0025] A test device for simulating the whole process of weakening landslide of submarine gas-containing slope, comprising a device shell 1, a water storage tank 2 is arranged inside the device shell 1, a simulation tank 3 is arranged inside the device shell 1, a simulation slope 4 is movably connected to the bottom of the simulation tank 3, a baffle 5 is fixedly connected to the bottom of the simulation tank 3, a vibration structure 6 is arranged at the bottom of the device shell 1, the vibration structure 6 comprises a bottom plate 61, four groups of limit rods 62 are fixedly connected to the surface of the bottom plate 61, a moving plate 63 is slidably connected to the surface of the limit rod 62, six groups of springs 64 are fixedly connected to the surface of the bottom plate 61, two groups of fixed seats 68 are fixedly connected to the surface of one group of fixed seats 68, a motor 65 is fixedly connected to the surface of the motor 65, a rotating shaft 66 is fixedly connected to the output end of the motor 65, and the surface of the rotating shaft 66 Two groups of cams 67 are fixedly connected to the surface, an exhaust structure 7 is arranged on one side of the simulation chamber 3, the exhaust structure 7 includes an air pump 1 71, the output end of the air pump 1 71 is fixedly connected to a connecting pipe 1 72, the surface of the connecting pipe 1 72 is fixedly connected to three groups of connecting pipes 2 73, the surface of the connecting pipe 2 73 is fixedly connected to a nozzle 74, a pressure relief valve 1 75 is fixedly connected to the surface of one side of the device shell 1, a tidal generating structure 8 is arranged on the side of the device shell 1 away from the exhaust structure 7, the tidal generating structure 8 includes an air pump 2 81, the air pump 2 81 is fixedly connected to the top of the device shell 1, a partition 82 is fixedly connected to the inner wall of the device shell 1, a pressure relief valve 2 83 is fixedly connected to the top of the device shell 1, a wave-making structure 9 is fixedly connected to the surface of the partition 82, and the wave-making structure 9 includes A push plate 91, wherein two groups of fixed rods 92 are fixedly connected inside the push plate 91, and an electric telescopic rod 93 is rotatably connected to the surface of the fixed rod 92. A telescopic member 94 is slidably connected inside the push plate 91, and four groups of limit plates 95 are fixedly connected to the surface of the telescopic member 94. A slide groove 96 is provided inside the push plate 91. A top cover 10 is plugged into the top of the device shell 1, and a spring buckle 11 is fixedly connected to the surface of the device shell 1 and the top cover 10, and a sealing cushion layer 12 is fixedly connected to the bottom of the top cover 10. A vibration structure 6, an exhaust structure 7, a tidal generating structure 8 and a wave-making structure 9 are provided. An earthquake is simulated by the vibration structure 6 to further study the influence of an earthquake on a gas-bearing slope. The gas dissolution in the gas-bearing slope can be simulated when a tide is created by the exhaust structure 7 and the tidal generating structure 8. The influence on the gas-bearing slope can be simulated by the wave-making structure 9, and then the change of the gas-bearing slope in this case can be studied. The influence on the transformation of the gas-bearing slope can be studied from four angles of vibration, gas, tide and wave through the vibration structure 6, the exhaust structure 7, the tidal structure 8 and the wave-making structure 9. The whole process of weakening of the gas-bearing slope and the generation of landslide is intuitively demonstrated without the need for on-site tests, saving time, material resources and manpower. The vibration structure 6 and the wave-making structure 9 are set, and the motor 65 drives the shaft 66 to rotate, and the shaft 66 drives the cam 67 to rotate. The cam 67 lifts the moving plate 63 back and forth, and the spring 64 damps the moving plate 63 and reciprocates to achieve a more realistic simulation of the earthquake. By changing the parameters such as the rotation speed of the motor 65,In this way, different types of earthquake waves can be simulated. The two sets of electric telescopic rods 93 simultaneously push the push plate 91 to move, and the push plate 91 pushes the water inside the simulation chamber 3 to generate waves, thereby simulating waves. When the two sets of electric telescopic rods 93 push the push plate 91 separately, the push plate 91 can rotate and retract with the electric telescopic rods 93, thereby simulating irregular waves. More types of earthquake waves and waves can be simulated, which is more in line with the actual situation, and the accuracy of the test can be guaranteed to a certain extent.

[0026] Furthermore, a barometer is fixedly connected to the surface of the pressure relief valve 1 75 and the pressure relief valve 2 83. The pressure relief valve 1 75 is connected to the simulation tank 3, and the pressure relief valve 2 83 is connected to the water storage tank 2. Gas is pumped into the water storage tank 2 through the air pump 2 81, so that the water in the water storage tank 2 is pumped into the simulation tank 3, thereby simulating the tide. The internal air pressure of the water storage tank 2 is detected by the pressure relief valve 2 83, and the external air is pumped to the nozzle 74 through the connecting pipe 1 72 and the connecting pipe 2 73 through the air pump 1 71, and sprayed out from the nozzle 74, thereby simulating the dissolution of gas in the gas-containing slope. The internal air pressure of the simulation tank 3 is detected by the pressure relief valve 1 75. When the pressure is greater than the set value, the corresponding pressure relief valve opens to release the pressure.

[0027] Furthermore, the three sets of connecting pipes 73 are arranged at an angle, and the connecting pipes 73 and the nozzles 74 are both arranged inside the simulated slope 4. The simulated slope 4 is arranged at an angle, and the bottom height of the simulated slope 4 is not higher than the height of the baffle 5. When the simulated slope 4 is placed, the baffle 5 blocks the simulated slope 4 to prevent it from crossing the baffle 5 and entering the water storage tank 2.

[0028] Furthermore, four groups of limit rods 62 are fixedly connected to the four corners of the bottom plate 61, and circular grooves 1 are provided at the four corners of the movable plate 63. The movable plate 63 is slidably connected to the surfaces of the four groups of limit rods 62 through the four groups of circular grooves 1. The device housing 1 is fixedly connected to the surface of the movable plate 63. The two ends of the six groups of springs 64 are respectively fixedly connected to the top of the bottom plate 61 and the bottom of the movable plate 63. The six groups of springs 64 are symmetrically arranged. The surface of one group of fixed seats 68 is fixedly connected to the motor 65, and the interior of the other group of fixed seats 68 is rotatably connected to the rotating shaft 66. The surface of the cam 67 is in contact with the bottom of the movable plate 63. The rotating shaft 66 is driven to rotate by the motor 65, and the rotating shaft 66 drives the cam 67 to rotate. The cam 67 lifts the movable plate 63 reciprocatingly, and the movable plate 63 is damped and reciprocatingly oscillated by the spring 64 to achieve a more realistic simulation of the earthquake.

[0029] Furthermore, a square groove 1 is provided on the surface of the push plate 91, and the fixed rod 92 is fixedly connected to the inner wall of the square groove 1. The electric telescopic rod 93 is fixedly connected to the surface of the partition 82 close to the simulated slope 4. A circular groove 2 is provided at the output end of the electric telescopic rod 93, and the output end of the electric telescopic rod 93 is rotatably connected to the surface of the fixed rod 92 through the circular groove 2. The telescopic member 94 is in an I-shaped shape, and an I-shaped groove is provided inside the push plate 91. The telescopic member 94 is slidably connected in the I-shaped groove, and the limit plate 95 is slidably connected inside the slide groove 96, and the side surface of the limit plate 95 is relative to the inner wall of the slide groove 96. The wave-making structure 9 has two working states: regular wave-making and irregular wave-making. During regular wave-making, two sets of electric telescopic rods 93 simultaneously push the push plate 91 to move, and the push plate 91 pushes the water inside the simulation chamber 3 to generate waves. During irregular wave-making, when the two sets of electric telescopic rods 93 push the push plate 91 separately, the push plate 91 rotates with the electric telescopic rod 93 through the fixed rod 92, and the push plate 91 slides through the telescopic member 94 in the I-shaped groove to realize the telescopic extension of the push plate 91, and the cooperation between the limit plate 95 and the slide groove 96 prevents the telescopic member 94 from falling out of the push plate 91.

[0030] Furthermore, the spring buckle 11 includes a buckle body and a hanging ear, the buckle body is fixedly connected to the surface of the device housing 1, and the hanging ear is fixedly connected to the surface of the top cover 10, and the top cover 10 is installed on the top of the device housing 1 through the spring buckle 11.

[0031] Furthermore, the sealing pad layer 12 is made of rubber material, the motor 65, air pump one 71, air pump two 81 and the electric telescopic rod 93 are all electrically connected to the external power supply, the device housing 1 is made of a transparent acrylic plate, and the sealing pad layer 12 increases the airtightness after the top cover 10 is installed on the top of the device housing 1. The motor 65, air pump one 71, air pump two 81 and the electric telescopic rod 93 are uniformly controlled by the external power supply, and the internal test conditions can be directly observed through the device housing 1.

[0032] Working principle: When in use, first lay the simulation slope 4 at the bottom of the simulation chamber 3, the bottom height of the simulation slope 4 is not higher than the height of the baffle 5, pour water into the simulation chamber 3, install the top cover 10 on the top of the device housing 1 through the spring buckle 11, seal the simulation chamber 3, drive the rotating shaft 66 to rotate through the motor 65, and the rotating shaft 66 drives the cam 67 to rotate. The cam 67 lifts the moving plate 63 back and forth, and the spring 64 damps the moving plate 63 and reciprocates to study the impact of earthquakes on the gas-containing slope. The external air is introduced through the connecting pipe 72 and the air pump 71. The connecting pipe 73 is pumped to the nozzle 74, and the water is sprayed out from the nozzle 74, thereby simulating the dissolution of gas in the gas-containing slope, and the gas is pumped into the water storage tank 2 through the air pump 81, so that the water in the water storage tank 2 is pumped into the simulation tank 3, thereby simulating the tide, and the push plate 91 is pushed to move by two sets of electric telescopic rods 93 at the same time. The push plate 91 pushes the water inside the simulation tank 3 to generate waves, and then the changes of the gas-containing slope in this case are studied. The influence on the transformation of the gas-containing slope can be studied from four angles: vibration, gas, tide and wave, and the whole process of weakening of the gas-containing slope and the generation of landslides is intuitively demonstrated.

[0033] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A test device for simulating the whole process of weakening landslide of a submarine gas-bearing slope, comprising a device housing (1), characterized in that: A water storage tank (2) is arranged inside the device housing (1), a simulation tank (3) is arranged inside the device housing (1), the bottom of the simulation tank (3) is movably connected to a simulation slope (4), the bottom of the simulation tank (3) is fixedly connected to a baffle (5), a vibration structure (6) is arranged at the bottom of the device housing (1), the vibration structure (6) comprises a bottom plate (61), the surface of the bottom plate (61) is fixedly connected to four groups of limit rods (62), the surface of the limit rods (62) is slidably connected to a moving plate (63), the surface of the bottom plate (61) is fixedly connected to six groups of springs (64), and the bottom Two groups of fixing seats (68) are fixedly connected to the surface of the plate (61), a motor (65) is fixedly connected to the surface of one group of fixing seats (68), an output end of the motor (65) is fixedly connected to a rotating shaft (66), and two groups of cams (67) are fixedly connected to the surface of the rotating shaft (66), an exhaust structure (7) is provided on one side of the simulation chamber (3), the exhaust structure (7) comprises an air pump 1 (71), an output end of the air pump 1 (71) is fixedly connected to a connecting pipe 1 (72), a surface of the connecting pipe 1 (72) is fixedly connected to three groups of connecting pipes 2 (73), and a surface of the connecting pipe 2 (73) is fixedly connected to the output end of the air pump 1 (71). A nozzle (74) is connected, a pressure relief valve (75) is fixedly connected to the surface of one side of the device housing (1), a tidal generating structure (8) is arranged on the side of the device housing (1) away from the exhaust structure (7), the tidal generating structure (8) comprises an air pump (81), the air pump (81) is fixedly connected to the top of the device housing (1), a partition (82) is fixedly connected to the inner wall of the device housing (1), a pressure relief valve (83) is fixedly connected to the top of the device housing (1), a wave-making structure (9) is fixedly connected to the surface of the partition (82), and the wave-making structure (9) comprises a push plate ( 91), the push plate (91) is internally fixedly connected with two groups of fixed rods (92), the surface of the fixed rods (92) is rotatably connected with an electric telescopic rod (93), the push plate (91) is internally slidably connected with a telescopic member (94), the surface of the telescopic member (94) is fixedly connected with four groups of limit plates (95), a slide groove (96) is provided inside the push plate (91), a top cover (10) is inserted at the top of the device housing (1), a spring buckle (11) is fixedly connected between the surfaces of the device housing (1) and the top cover (10), and a sealing pad layer (12) is fixedly connected to the bottom of the top cover (10).

2. The test device for simulating the whole process of weakening landslide of submarine gas-bearing slope according to claim 1 is characterized by: The surfaces of the first pressure relief valve (75) and the second pressure relief valve (83) are both fixedly connected with a barometer; the first pressure relief valve (75) is connected to the simulation chamber (3), and the second pressure relief valve (83) is connected to the water storage chamber (2).

3. The test device for simulating the whole process of weakening landslide of submarine gas-bearing slope according to claim 1 is characterized by: The three groups of connecting pipes (73) are arranged at an angle, the connecting pipes (73) and the nozzles (74) are arranged inside the simulated slope (4), the simulated slope (4) is arranged at an angle, and the bottom height of the simulated slope (4) is not higher than the height of the baffle (5).

4. The test device for simulating the whole process of weakening landslide of submarine gas-bearing slope according to claim 1 is characterized by: Four groups of limit rods (62) are fixedly connected to the four corners of the bottom plate (61), and circular grooves are provided at the four corners of the movable plate (63). The movable plate (63) is slidably connected to the surfaces of the four groups of limit rods (62) through the four groups of circular grooves. The device housing (1) is fixedly connected to the surface of the movable plate (63). The two ends of the six groups of springs (64) are respectively fixedly connected to the top of the bottom plate (61) and the bottom of the movable plate (63). The six groups of springs (64) are symmetrically arranged. The surface of one group of fixed seats (68) is fixedly connected to the motor (65), and the interior of the other group of fixed seats (68) is rotatably connected to the rotating shaft (66). The surface of the cam (67) is in contact with the bottom of the movable plate (63).

5. The test device for simulating the whole process of weakening landslide of submarine gas-bearing slope according to claim 1 is characterized by: The surface of the push plate (91) is provided with a square groove 1, the fixed rod (92) is fixedly connected to the inner wall of the square groove 1, the electric telescopic rod (93) is fixedly connected to the surface of the partition (82) close to the simulated slope (4), the output end of the electric telescopic rod (93) is provided with a circular groove 2, the output end of the electric telescopic rod (93) is rotatably connected to the surface of the fixed rod (92) through the circular groove 2, the telescopic member (94) is I-shaped, the inside of the push plate (91) is provided with an I-shaped groove, the telescopic member (94) is slidably connected in the I-shaped groove, the limit plate (95) is slidably connected in the inside of the slide groove (96), and the side surface of the limit plate (95) is in contact with the inner wall of the slide groove (96).

6. The test device for simulating the whole process of weakening landslide of submarine gas-bearing slope according to claim 1, characterized in that: The spring buckle (11) comprises a buckle body and a hanging ear, wherein the buckle body is fixedly connected to the surface of the device housing (1), and the hanging ear is fixedly connected to the surface of the top cover (10).

7. The test device for simulating the whole process of weakening landslide of submarine gas-bearing slope according to claim 1 is characterized by: The sealing pad layer (12) is made of rubber material, the motor (65), the air pump 1 (71), the air pump 2 (81) and the electric telescopic rod (93) are all electrically connected to an external power source, and the device housing (1) is made of a transparent acrylic plate.

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