Testing device for soil disintegration test

Abstract

The utility model relates to the technical field of soil disintegration test, and discloses a test device for soil disintegration test, which comprises a water tank and a buoy, the bottom of the buoy is provided with a placing component, the placing component comprises a placing shell, the placing shell is internally provided with a placing cavity, one side wall of the placing shell is provided with a water inlet hole, and the water inlet hole is communicated with the placing cavity. A placing opening is formed in the side wall of the other side of the placing shell; a driving motor is further arranged in the containing cavity, a connecting rod is arranged on an electric spindle of the driving motor, a first baffle is arranged at the end of one side of the connecting rod and can block the water inlet hole, and a second baffle is arranged at the end of the other side of the connecting rod and can block the containing opening. The driving motor can drive the connecting rod to move to enable the first baffle and the second baffle to unblock the water inlet hole and the placing opening; the disintegration device has the advantages of controllable disintegration process and accurate test result.

Description

Technical Field

[0001] The utility model relates to a test device for soil disintegration test, belonging to the technical field of soil disintegration test. Background Technique

[0002] The soil disintegration test device is a device used to simulate the disintegration process of soil under different conditions, and is often used in the research of geotechnical engineering, environmental science and geology. At present, the soil disintegration tester mainly includes a buoy, a mesh plate, a water tank, etc. (see Geotechnical Experiment Code for Water Conservancy Projects SL237 - 008 - 1999, Geotechnical Experiment Code for Railway Engineering TB10102 - 2004).

[0003] In the prior art, when conducting a disintegration test on granite soil, during the falling process of the specimen in the water tank, due to the relative displacement between it and the specimen, the water body scours the specimen, resulting in a relatively large instantaneous disintegration rate of the specimen during the water entry process, making the test value deviate greatly from the actual state of the specimen, thus affecting the subsequent test results. In addition, due to the differences and uncertainties in manual operation, there may be certain differences in the amount of instantaneous disintegration of different specimens under the condition of water entry disturbance. On the other hand, in previous disintegration tests, the specimens were directly placed on the workbench for disintegration. However, natural stress exists in geotechnical samples in their natural state, and natural stress has a certain impact on the stability and pore state of the soil sample. Once the sample is taken out from the original site, its stress has been released to a certain extent. Conducting a disintegration test under such circumstances will result in a certain difference between the test results and the actual disintegration situation of natural soil. Even when artificially consolidated specimens are prepared, when the specimens are immersed in water, since they cannot be restricted by a certain stress as in the natural state, their disintegration process also differs from the actual situation. To solve this problem, we propose a test device for soil disintegration test. It can apply additional stress to the specimen before disintegration, or keep the specimen in a certain stress state during the test to cause disintegration, which not only makes the test scenario closer to the natural disintegration process of geotechnical samples, but also can study the disintegration process of specimens under different stress conditions by controlling the stress state, filling the blank in the current research on soil disintegration characteristics under stress control. Content of the Utility Model

[0004] In order to solve the above problems existing in the prior art, the utility model provides a test device for soil disintegration test.

[0005] The technical solution of the utility model is as follows:

[0006] An experimental device for soil disintegration test, comprising a water tank and a floating cylinder arranged in the water tank. A placement component for placing the test soil is provided at the bottom of the floating cylinder. The placement component includes a placement housing. A placement cavity is formed inside the placement housing. A water inlet hole is formed in one side wall of the placement housing, and the water inlet hole communicates the placement cavity with the water tank. A placement opening is formed in the other side wall of the placement housing, and the placement opening is used for putting the test soil into the placement cavity from the outside. A driving motor is further arranged in the placement cavity. A connecting rod is arranged on the electric main shaft of the driving motor. A first baffle is arranged at one end of the connecting rod, and the first baffle can block the water inlet hole. A second baffle is arranged at the other end of the connecting rod, and the second baffle can block the placement opening. The driving motor can drive the connecting rod to move so that the first baffle and the second baffle release the blocking of the water inlet hole and the placement opening.

[0007] Wherein, a cover plate is hinged on the outer side wall of the placement housing through a hinge. The cover plate is arranged to cover the placement opening. A water passing hole is formed in the cover plate, and the water passing hole is adapted to the water inlet hole. The water passing hole communicates the placement opening with the water tank.

[0008] Wherein, a sliding groove is formed in the inner side wall of the placement housing. The water inlet hole and the placement opening are both communicated with the sliding groove. The first baffle and the second baffle are both arranged to be slidably connected in the sliding groove.

[0009] Wherein, a placement plate is further arranged in the placement cavity. The test soil is placed on the placement plate, and a water immersion sensor is further arranged on the placement plate.

[0010] Wherein, a first hook is arranged at the bottom of the floating cylinder, and a second hook is arranged at the top of the placement housing. The placement housing is hung on the first hook through the second hook to be connected with the floating cylinder.

[0011] Wherein, scale marks are arranged on the floating cylinder.

[0012] Wherein, a first through hole is formed in the placement plate. The placement plate is installed on the bottom surface of the placement housing through a mounting column. A second through hole is further formed in the bottom surface of the placement housing, and the second through hole communicates the placement cavity with the water tank. A third baffle is further arranged below the placement plate. Both ends of the third baffle are respectively connected with the first baffle and the second baffle. The mounting column movably penetrates through the third baffle. The third baffle can block the second through hole, and the third baffle can follow the movement of the first baffle and the second baffle to release the blocking of the second through hole.

[0013] Among them, the bottom of the installation column is movably passed through and arranged at the bottom of the placement shell. External threads are provided on the outer wall of the installation column, and the installation column is threadedly connected to the bottom wall of the placement shell through the provided external threads. A connecting column is rotatably connected to the bottom surface of the connecting rod through a first bearing. A pressing plate is provided at the bottom of the connecting column, and a pressure sensor is provided at the position where the connecting column is connected to the pressing plate.

[0014] Among them, the end of the installation column is rotatably connected to the bottom of the placement plate through a second bearing.

[0015] Among them, a tension sensor is provided at the position where the second hook is connected to the top of the placement shell.

[0016] The utility model has the following beneficial effects:

[0017] The utility model is provided with a placement component for placing the test soil body. Through structures such as the water inlet hole, placement port, drive motor, connecting rod, first baffle, and second baffle, during the slaking test, the test soil body is put into the placement cavity through the placement port. Then, by controlling the drive motor to start working, the drive motor drives the first baffle and the second baffle to rotate through the connecting rod, so that the first baffle and the second baffle block the water inlet hole and the placement port. When the placement component is put into the water tank, it is difficult for the water in the water tank to enter the placement cavity, so as to ensure that the test soil body cannot slake during the falling process in the water tank. After the placement component lands on the bottom, by controlling the drive motor to start working and driving the first baffle and the second baffle to rotate, the first baffle and the second baffle are made to release the blockage of the water inlet hole and the placement port. At this time, the water in the water tank can enter the placement cavity through the water inlet hole and the placement port to erode the test soil body, so that the required slaking test can be carried out. Compared with the prior art, it has the advantages of controllable slaking process and accurate test results. Description of the Drawings

[0018] Figure 1 is a schematic structural diagram of the utility model;

[0019] Figure 2 is a schematic structural diagram of the placement component in the first embodiment;

[0020] Figure 3 is a schematic structural diagram of the placement component placed in the water tank in the first embodiment;

[0021] Figure 4 is a schematic structural diagram of the placement component during the slaking test in the water tank in the first embodiment;

[0022] Figure 5 is a schematic structural diagram of the bottom of the placement component placed in the water tank in the first embodiment;

[0023] Figure 6Schematic diagram of the bottom structure when the placement component is placed in the water tank for the disintegration test in Embodiment 1;

[0024] Figure 7 Schematic diagram of the structure when the test soil body is placed in the placement cavity in Embodiment 2;

[0025] Figure 8 Schematic diagram of the structure when the pressing plate and the placement plate press the test soil body in Embodiment 2.

[0026] The reference signs in the figure are shown as:

[0027] 1. Water tank; 2. Floating cylinder; 3. Test soil body; 4. Placement component; 5. Placement housing; 6. Placement cavity; 7. Water inlet hole; 8. Placement opening; 9. Driving motor; 10. Connecting rod; 11. First baffle; 12. Second baffle; 13. Cover plate; 14. Water passing hole; 15. Chute; 16. Placement plate; 17. Water immersion sensor; 18. First hook; 19. Second hook; 20. Scale mark; 21. First through hole; 22. Mounting post; 23. Second through hole; 24. Third baffle; 25. External thread; 26. First bearing; 27. Connecting post; 28. Pressing plate; 29. Pressure sensor; 30. Second bearing; 31. Tensile sensor. Detailed implementation manners

[0028] The present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Embodiment 1: Please refer to Figures 1 to 4, this embodiment provides a test device for soil disintegration tests, including a water tank 1 and a floating cylinder 2 arranged in the water tank 1. A placement assembly 4 for placing the test soil body 3 is provided at the bottom of the floating cylinder 2. In this embodiment, the placement assembly 4 includes a placement housing 5. The placement housing 5 is arranged in a cylindrical structure. An inner placement cavity 6, also arranged in a cylindrical structure, is formed inside the placement housing 5. The placement cavity 6 and the placement housing 5 are arranged on the same axis. A plurality of water inlet holes 7 are formed in the right side wall of the placement housing 5. The specific quantity, size, and distribution of the water inlet holes 7 can be determined according to actual conditions to meet the water inflow required during the disintegration test. Each water inlet hole 7 communicates the placement cavity 6 with the water tank 1. A placement opening 8 is formed in the left side wall of the placement housing 5. The placement opening 8 is larger than the test soil body 3. The placement opening 8 is used for putting the test soil body 3 into the placement cavity 6 from the outside. A driving motor 9 is also embedded in the top inner wall of the placement cavity 6. The electric main shaft of the driving motor 9 extends into the placement cavity 6. A connecting rod 10 is fixedly arranged on the electric main shaft of the driving motor 9. A first baffle 11 is arranged at the right end of the connecting rod 10. The first baffle 11 can block all the water inlet holes 7. A second baffle 12 is arranged at the left end of the connecting rod 10. The second baffle 12 can block the placement opening 8. At the same time, when the first baffle 11 is in the position of blocking all the water inlet holes 7, the second baffle 12 also exactly blocks the placement opening. Moreover, when the driving motor 9 starts to work, it can drive the connecting rod 10 to move, causing the first baffle 11 and the second baffle 12 to move in the placement cavity 6, so as to simultaneously release the blockage of the water inlet holes 7 and the placement opening 8.

[0030] Through the above arrangement, when the disintegration test is conducted, the test soil 3 is first placed into the placement cavity 6 through the placement opening 8, and then the driving motor 9 is controlled to start working, so that the driving motor 9 drives the first baffle 11 and the second baffle 12 to rotate through the connecting rod 10, so that the first baffle 11 and the second baffle 12 block the water inlet 7 and the placement opening 8. Then, appropriate water is injected into the water tank 1, and then the placement shell 5 is connected to the float 2, and then the float 2 and the placement shell 5 are placed in the water tank 1. After the placement shell 5 falls to the bottom, that is, enters the position in the water tank 1 where it cannot continue to fall under the buoyancy of the float 2, the tester records the position of the float 2 at this time. Afterwards, the driving motor 9 is controlled to start working. The control method of the driving motor 9 can be realized by an external controller. This is a conventional technical means. The specific implementation principle will not be repeated in this embodiment. The first baffle 11 and the second baffle 12 are driven by the connecting rod 10 to start rotating, so that the first baffle 11 and the second baffle 12 can unblock the water inlet hole 7 and the placement port 8. At this time, the water in the water tank 1 can enter the placement cavity 6 through the water inlet hole 7 and the placement port 8, and erode the test soil 3 so that the test soil 3 can be disintegrated. After that, the test personnel can complete the disintegration test of the test soil 3 by recording the disintegration time of the test soil 3 and the corresponding position of the float 2. In addition, conventional disintegration tests are to directly immerse the test soil 3 in water, and the test soil 3 is quickly saturated with water to produce a water wedge phenomenon. However, under natural conditions, the immersion process of the soil or the rainfall infiltration process is often a gradual process. Therefore, it is difficult for previous disintegration tests to fully simulate the natural disintegration state of the actual soil. In this embodiment, by controlling the driving motor 9 and controlling the area of ​​the first baffle 11 and the second baffle 12 blocking the water inlet 7 and the placement port 8, the flow rate of water entering the placement chamber 6 can be adjusted, thereby better simulating the natural collapse state of the actual soil, thereby improving the accuracy of the test results.

[0031] Since the water inflow of the placement port 8 and the water inlet 7 is different, it may have a certain impact on the result of the disintegration test. In order to avoid this impact as much as possible, in this embodiment, a cover plate 13 is hinged on the left outer wall of the placement shell 5 by setting a hinge, and the cover plate 13 is set to cover the placement port 8. A water hole 14 is provided on the cover plate 13. The position, size and distribution of the water hole 14 are adapted to the water inlet 7, so as to balance the water inflow on both sides during the subsequent disintegration test. The water hole 14 connects the placement port 8 with the water tank 1. Through the above-mentioned setting, when the test soil body 3 needs to be placed, the test soil body 3 can be placed in the placement cavity 6 by opening the cover plate 13. After the test soil body 3 is placed, the cover plate 13 is covered on the placement port 8 again. At this time, when the water in the subsequent water tank 1 needs to enter the placement cavity 6 through the placement port 8, it needs to pass through the water hole 14 first, so as to ensure the balance of the water inflow on both sides of the placement shell 5 as much as possible, and further ensure the accuracy of the disintegration test results.

[0032] In this embodiment, a sliding groove 15 is formed on the inner side wall of the placement shell. The sliding groove 15 is arranged in a ring structure inside the placement shell. The water inlet hole 7 and the placement opening 8 are both communicated with the sliding groove 15. The first baffle 11 and the second baffle 12 are both slidably connected inside the sliding groove 15. The arrangement of the sliding groove 15 ensures that when the first baffle 11 and the second baffle 12 move to block the water inlet hole 7 and the placement opening 8 or release the blockage of the water inlet hole 7 and the placement opening 8, the first baffle 11 and the second baffle 12 can slide inside the sliding groove 15. The arrangement of the sliding groove 15 is used to ensure the stability of the movement of the first baffle 11 and the second baffle 12.

[0033] In this embodiment, a placement plate 16 is further arranged inside the placement cavity 6. The test soil mass 3 is placed on the placement plate 16. The top surface of the placement plate 16 can be roughened to avoid the phenomenon that the test soil mass 3 slides on the placement plate 16 during the disintegration test, so as to ensure the accuracy of the test results. A water immersion sensor 17 is further arranged on the top surface of the placement plate 16. The water immersion sensor 17 is used to detect whether water enters the placement cavity 6. The water immersion sensor 17 can communicate with an external controller to convey corresponding information to external staff. When the staff has controlled the driving motor 9 to start working and the first baffle 11 and the second baffle 12 release the blockage of the water inlet hole 7 and the placement opening 8, but the water immersion sensor 17 does not detect water entering the placement cavity 6 for a long time and does not generate a corresponding signal, it can be explained that there is a fault inside the placement component 4. The arrangement of the water immersion sensor 17 enables the staff to discover the fault in time and carry out corresponding maintenance work to ensure the accuracy of the test results.

[0034] In this embodiment, a first hook 18 is arranged at the bottom of the floating cylinder 2, and a second hook 19 is arranged at the top of the placement shell 5. The placement shell 5 is hung on the first hook 18 through the second hook 19 to be connected with the floating cylinder 2.

[0035] For the convenience of the test personnel to record the position of the floating cylinder 2, scale marks 20 are arranged on the floating cylinder 2. The test personnel can quickly know the position of the floating cylinder 2 by reading the corresponding scale marks 20 on the floating cylinder 2 when the water in the water tank 1 submerges the floating cylinder 2.

[0036] During the disintegration test, the test soil mass 3 will disintegrate in water, resulting in damage and mass loss. The mass loss refers to the dropping of the soil mass particles after the disintegration of the test soil mass 3. To ensure that such soil mass particles can smoothly fall out of the placement shell 5. In this embodiment, a first through hole 21 is also opened on the placement plate 16. The placement plate 16 is installed on the bottom surface of the placement shell 5 by arranging mounting columns 22. A second through hole 23 is also opened on the bottom surface of the placement shell 5. The second through hole 23 communicates the placement cavity 6 with the water tank 1. A third baffle 24 is also arranged below the placement plate 16. Both ends of the third baffle 24 are connected to the first baffle 11 and the second baffle 12 respectively. The mounting column 22 is movably penetrated through the third baffle 24. The third baffle 24 can block the second through hole 23. The third baffle 24 can move to release the blockage of the second through hole 23 following the movement of the first baffle 11 and the second baffle 12. That is, when the first baffle 11 and the second baffle 12 move to the position of blocking the water inlet hole 7 and the placement opening 8, the third baffle 24 can also move to the position of blocking the second through hole 23. When the first baffle 11 and the second baffle 12 move to the position of releasing the blockage of the water inlet hole 7 and the placement opening 8, the third baffle 24 can also move to the position of releasing the blockage of the second through hole 23. At this time, the soil mass particles generated by the disintegration of the test soil mass 3 can fall out of the placement shell 5 under the action of gravity through the first through hole 21 and the second through hole 23.

[0037] Since there are differences in the original in-situ stresses in natural soil masses, and the stress existing in the excavated test soil mass 3 will change due to exposure to the outside world, resulting in situations such as swelling and deformation. If the test soil mass 3 can be restored to the original stress during the test, it will be closer to the actual situation, thereby further improving the accuracy of the test. For this reason, on the basis of Embodiment 1, Embodiment 2 is proposed.

[0038] Embodiment 2: Please refer to Figure 1 、 3 ~8. On the basis of Embodiment 1, this embodiment provides a test device for soil disintegration test. The difference from Embodiment 1 is that the bottom of the mounting column 22 is movably penetrated through the bottom of the placement shell 5. An external thread 25 is arranged on the outer wall of the mounting column 22. The mounting column 22 is threadedly connected to the bottom wall of the placement shell 5 through the arranged external thread 25. At the same time, the end of the mounting column 22 is rotatably connected to the bottom of the placement plate 16 through arranging a second bearing 30. Through the foregoing setting, when the mounting column 22 is rotated, the mounting column 22 can move up and down adaptively according to the rotation direction under the action of the external thread 25, that is, it can drive the placement plate 16 to move up and down adaptively. It should be noted that the specific penetration method of the mounting column 22 through the third baffle 24 is not limited, as long as it is movably penetrated.

[0039] On the bottom surface of the connecting rod 10, a connecting column 27 is rotatably connected through the installation of a first bearing 26. A pressing plate 28 is provided at the bottom of the connecting column 27, and a pressure sensor 29 is provided at the position where the connecting column 27 is connected to the pressing plate 28. The pressure sensor 29 is used to detect the pressure exerted by the pressing plate 28 on the connecting column 27. The pressure sensor 29 can be communicatively connected to an external controller so as to transmit the detected value to the outside for the test personnel to read. Through the above settings, before the disintegration test, the test soil mass 3 is placed on the placement plate 16, and then an external tool such as a wrench is used to rotate the installation column 22, so that the installation column 22 drives the placement plate 16 to move upward, and the test soil mass 3 on the placement plate 16 can be moved in the direction close to the pressing plate 28. When the top of the test soil mass 3 is in close contact with the pressing plate 28, the pressing plate 28 will exert pressure on the connecting column 27. At this time, the data detected by the pressure sensor 29 can be the pressure received by the test soil mass 3 at this time. The pressure sensor 29 transmits the detected value to the external controller for the test personnel to read. The test personnel can adjust the pressure exerted on the test soil mass 3 by the placement plate 16 and the pressing plate 28 according to the read value, and stop rotating the installation column 22 after adjusting to an appropriate value. At this time, the placement housing 5 can be put into the water tank 1 for the required disintegration test. In this disintegration test, the disintegration process of the test soil mass 3 can be closer to the actual situation, thereby further improving the accuracy of the test.

[0040] To enable the test personnel to read the test values more accurately, in this embodiment, a tension sensor 31 is provided at the position where the second hook 19 is connected to the top of the placement housing 5. The tension sensor can be communicatively connected to an external controller so as to transmit the detected value to the outside for the test personnel to read. The tension sensor 31 can detect the tension exerted by the second hook 19 on the placement housing 5, so that the test personnel can obtain the disintegration amount of the test soil mass 3 by reading the value detected by the tension sensor 31 in real time during the disintegration test. Compared with the method of reading the scale mark 20 on the float 2, it has the characteristics of higher accuracy.

[0041] The working principle of this embodiment is as follows: during the disintegration test, first, the test soil mass 3 is placed into the placement cavity 6 through the placement opening 8. Then, the mounting column 22 is rotated to make the placement plate 16 cooperate with the pressing plate 28 to extrude the test soil mass 3. After the pressure value applied to the test soil mass 3 reaches an appropriate value, the tester controls the driving motor 9 to start working, so that the driving motor 9 drives the first baffle 11 and the second baffle 12 to rotate through the connecting rod 10, and the first baffle 11 and the second baffle 12 block the water inlet hole 7 and the placement opening 8. During the rotation of the connecting rod 10, due to the setting of the first bearing 26, the connecting column 27 will not rotate following the connecting rod 10, and thus the pressing plate 28 will not rotate either, so as to avoid the influence on the test soil mass 3 caused by the pressing plate 28. Then, appropriate water is injected into the water tank 1, and then the placement housing 5 is connected to the floating cylinder 2. After that, the floating cylinder 2 and the placement housing 5 are placed into the water tank 1. When the placement housing 5 reaches the bottom, that is, the position where it cannot continue to fall under the buoyancy of the floating cylinder 2 in the water tank 1, the tester reads the value detected by the tension sensor 31 at this time. Then, by controlling the driving motor 9 to start working, the first baffle 11 and the second baffle 12 are driven to rotate through the connecting rod 10, and the first baffle 11 and the second baffle 12 are made to release the blockage of the water inlet hole 7 and the placement opening 8. At this time, the water in the water tank 1 can enter the placement cavity 6 through the water inlet hole 7 and the placement opening 8 to erode the test soil mass 3, so that the test soil mass 3 can disintegrate. Then, the tester records the disintegration time of the test soil mass 3 and the corresponding values detected by the tension sensor 31, and thus the disintegration test of the test soil mass 3 can be completed.

[0042] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, shall be similarly included in the patent protection scope of the present invention.

Claims

1. A test device for soil disintegration test, comprising a water tank (1) and a float (2) arranged in the water tank (1), characterized in that: The bottom of the buoy (2) is provided with a placement component (4) for placing the test soil (3), the placement component (4) comprising a placement shell (5), a placement cavity (6) is provided inside the placement shell (5), a water inlet hole (7) is provided on one side wall of the placement shell (5), the water inlet hole (7) connects the placement cavity (6) with the water tank (1), and a placement opening (8) is provided on the other side wall of the placement shell (5), the placement opening (8) is used for placing the test soil (3) into the placement cavity (6) from the outside; a driving motor is also provided in the placement cavity (6). (9), a connecting rod (10) is arranged on the electric spindle of the driving motor (9), a first baffle (11) is arranged on one end of the connecting rod (10), and the first baffle (11) can block the water inlet hole (7), and a second baffle (12) is arranged on the other end of the connecting rod (10), and the second baffle (12) can block the placement opening (8), and the driving motor (9) can drive the connecting rod (10) to move so that the first baffle (11) and the second baffle (12) release the blockage of the water inlet hole (7) and the placement opening (8).

2. A test device for soil disintegration test according to claim 1, characterized in that: A cover plate (13) is hingedly connected to the outer wall of the placement shell (5) by means of a hinge. The cover plate (13) is arranged to cover the placement opening (8). A water hole (14) is provided on the cover plate (13). The water hole (14) is arranged to be compatible with the water inlet hole (7). The water hole (14) connects the placement opening (8) with the water tank (1).

3. A test device for soil disintegration test according to claim 1, characterized in that: A slide groove (15) is provided on the inner side wall of the placement shell, the water inlet hole (7) and the placement opening (8) are both connected to the slide groove (15), and the first baffle plate (11) and the second baffle plate (12) are both slidably connected to the slide groove (15).

4. A test device for soil disintegration test according to claim 1, characterized in that: A placement plate (16) is also provided in the placement cavity (6), the test soil (3) is placed on the placement plate (16), and a water immersion sensor (17) is also provided on the placement plate (16).

5. A test device for soil disintegration test according to claim 1, characterized in that: A first hook (18) is provided at the bottom of the buoy (2), and a second hook (19) is provided at the top of the placement shell (5); the placement shell (5) is hung on the first hook (18) via the second hook (19) to be connected to the buoy (2).

6. A test device for soil disintegration test according to claim 1, characterized in that: The buoy (2) is provided with a scale mark (20).

7. A test device for soil disintegration test according to claim 4, characterized in that: The placement plate (16) is provided with a first through hole (21). The placement plate (16) is installed on the bottom surface of the placement shell (5) by means of a mounting column (22). A second through hole (23) is also provided on the bottom surface of the placement shell (5). The second through hole (23) connects the placement cavity (6) with the water tank (1). A third baffle (24) is also provided below the placement plate (16). The two ends of the third baffle (24) are respectively connected to the first baffle (11) and the second baffle (12). The mounting column (22) is movably arranged to penetrate the third baffle (24). The third baffle (24) can block the second through hole (23). The third baffle (24) can follow the movement of the first baffle (11) and the second baffle (12) to release the blockage of the second through hole (23).

8. A test device for soil disintegration test according to claim 7, characterized in that: The bottom of the mounting column (22) is movably arranged to protrude from the bottom of the placement shell (5); an external thread (25) is arranged on the outer wall of the mounting column (22); the mounting column (22) is threadedly connected to the bottom wall of the placement shell (5) via the external thread (25); a connecting column (27) is rotatably connected to the bottom surface of the connecting rod (10) via a first bearing (26); a pressure plate (28) is arranged at the bottom of the connecting column (27); and a pressure sensor (29) is arranged at a position on the connecting column (27) where it is connected to the pressure plate (28).

9. A test device for soil disintegration test according to claim 8, characterized in that: The end of the mounting column (22) is rotatably connected to the bottom of the placement plate (16) by providing a second bearing (30).

10. The test device for soil disintegration test according to claim 5, characterized in that: A tension sensor (31) is provided at the position where the second hook (19) is connected to the top of the placement housing (5).

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