Device and method for determining laboratory strength of cement stabilized soil

Abstract

The present invention discloses a cement stabilized soil laboratory strength determination device and method, and relates to the field of cement stabilized soil testing, the device comprises: a movable platform, which comprises mutually spliced guide rail frames, the guide rail frames are provided with a driving motor and a base, and a screw rod is arranged between the driving motor and the base; the bearing table is arranged on the guide rail frame in a sliding mode, and the bearing table is matched with the screw rod through a nut; the feeding assembly is arranged on the side of the movable platform; the maintenance assembly is arranged on the bearing table, and the maintenance assembly is connected with the water supply assembly; and the test assembly is arranged in the bearing cylinder, and a plurality of test piece bodies are arranged in the test assembly. According to the device, materials for cement stabilized soil tests are prepared in batches, test pieces are efficiently prepared according to different proportions, meanwhile, maintenance conditions under the same environment are adopted, errors are reduced, testing assemblies are integrated for determination, and the whole device integrates test piece preparation, maintenance and determination into a whole.

Description

Technical Field

[0001] The present application relates to the field of cement stabilized soil testing, and in particular to a cement stabilized soil laboratory strength determination device and method. Background Art

[0002] Cement-stabilized soil is an important road building material and is widely used in highway construction. It is an artificial improved soil made by adding an appropriate amount of cement to the soil, fully mixing, compacting and curing under appropriate temperature conditions. Cement hydration is the core link in the maintenance process of cement-stabilized soil, including the initial hydration period, gel period and hardening period. The whole process reacts step by step, and the hydration products produced are intertwined to form a complex three-dimensional network structure, which constitutes the skeleton of cement-stabilized soil and improves the strength of cement-stabilized soil.

[0003] Each time you choose the amount of cement to stabilize soil, you need to determine it based on different engineering uses and soil conditions. Different uses have different requirements for the strength, stability and durability of the material, and the soil type, particle size distribution, plasticity index and other physical properties will affect the cement curing effect and final engineering performance. Before determining the final cement addition, it is usually necessary to conduct a series of laboratory tests, such as compaction tests and compressive strength tests, to evaluate the performance of the mixture at different additions.

[0004] When conducting experiments, it is necessary to carry out sample preparation, curing, and compressive strength tests in sequence. During the sample curing process, hydration is greatly affected by external factors such as humidity and temperature, and a certain amount of time is required to ensure the hydration reaction. It can only be used in experiments after curing to a specified age. In particular, for cements with different parameters, separate preparation and curing tests are required. The whole process lasts a long time and is inefficient.

[0005] Therefore, it is necessary to provide a cement-stabilized soil laboratory strength measurement device and method to solve the problems raised in the above background technology. Summary of the invention

[0006] To achieve the above purpose, the present application provides the following technical solution: a cement stabilized soil laboratory strength measurement device, comprising: The movable platform comprises guide rail frames connected to each other, and a driving motor and a base are arranged on the guide rail frames, and a screw is arranged between the driving motor and the base; A support platform is slidably arranged on the guide rail frame, and the support platform cooperates with the screw rod through a nut; A material feeding assembly is arranged on the side of the movable platform, and the material feeding assembly includes a clamping seat fixed on the side of the guide rail frame, a vertical frame and an extension rod are vertically arranged on the clamping seat, and a material storage tank is slidably arranged on the vertical frame and the extension rod, and a sliding track connected to the material storage tank is arranged on the vertical frame, and the material storage tank is driven by a supply motor fixed on the upper end of the vertical frame; A maintenance component is connected to the water supply component, wherein the maintenance component includes a shell, a bearing cylinder and a transfer bin, the shell is fixedly arranged on the supporting platform, and the shell is hollow inside, the bearing cylinder is inserted from the upper end, the transfer bin is connected to the inside of the bearing cylinder, and the supporting platform supports the maintenance component to slide under the storage tank; The test assembly is arranged in the carrying tube, and a plurality of test pieces are arranged in the test assembly.

[0007] Further, preferably, the storage tank stores sand and cement for testing, and is provided with a quantitative output control device, which controls the ratio and output amount of sand and cement output from the storage tank into the specimen body.

[0008] Further, preferably, the water supply assembly comprises: a fixed plate, a water tank, a regulating pump, a supply pipe and an adapter, wherein the water tank is fixed by the fixed plate, the water tank, the regulating pump and the adapter are connected in sequence by the supply pipe, and the adapter is connected to the adapter bin.

[0009] Further, as a preference, the interior of the support tube is a cylinder with a closed lower end, and water is supplied to the interior of the support tube and penetrates into the specimen body to participate in the specimen preparation.

[0010] Further, preferably, the test component comprises: An adjustment seat, wherein a slide rail is arranged at the lower end of the adjustment seat, and the adjustment seat is slidably arranged on the supporting platform through the slide rail, and the position of the adjustment seat is adjusted by sliding the slide rail; A driving cylinder is fixedly arranged on the adjusting seat and is connected with a piston rod; The support is fixedly arranged on the adjustment seat, and a crankshaft is rotatably arranged on the support, the middle of the crankshaft is connected to the piston rod, one end of the crankshaft is connected to a crank, and the other end is connected to a partition plate through a shaft rod.

[0011] Further, preferably, a plurality of placement holes are evenly opened on the separation plate, the placement holes correspond to the placement of the specimen bodies, a slot hole is opened at the bottom of the supporting tube for the shaft rod to pass through, the slot hole reserves a margin for lateral movement adjustment of the shaft rod, and the slot hole is sealed by a sealing ring.

[0012] Further, as a preference, an abutment plate is sleeved and fixedly provided on the shaft rod, a side surface of the abutment plate abuts against a side wall of the specimen body, and a clamping groove is provided on the side surface of the abutment plate to clamp the specimen body.

[0013] Further, as a preference, the lower end surface of the separation plate is higher than the upper end surface of the supporting tube, and the center line of the separation plate is misaligned with the center line of the supporting tube by adjusting the position of the adjusting seat. The crankshaft rotates so that the specimen body contacts the inner wall of the supporting tube, and the specimen body is squeezed. The inner wall of the supporting tube is affixed with a strain gauge to monitor the deformation of the inner wall and calculate the bearing capacity of the specimen body.

[0014] Further, preferably, the specimen body comprises a soft skeleton in a columnar shape, and a separation net covering the soft skeleton, and the separation net is water permeable.

[0015] A method for determining the laboratory strength of cement-stabilized soil comprises the following steps: Ⅰ. Insert multiple specimens into the corresponding placement holes of the separation plate, adjust the positions of different specimens by rotating the crankshaft, and move the supporting platform so that the specimens are placed under the storage tank respectively, and fill with sand and cement, wherein different specimens are filled with sand and cement in different proportions; Ⅱ. The water supply component supplies water to the inside of the bearing tube to ensure that the water required for the cement and sand in the specimen is mixed to prepare cement-stabilized soil. During the mixing process, the driving motor drives the screw to reciprocate, causing the support platform to reciprocate periodically to promote mixing; III. After the cement-stabilized soil in the specimen is cured, the strength test of the specimen is carried out by adjusting the position of the separation plate and coordinating the rotation of the crankshaft.

[0016] Compared with the prior art, the present application provides a cement-stabilized soil laboratory strength determination device and method, which has the following beneficial effects: The crankshaft is driven to rotate by a driving cylinder, and the partition plate follows the adjustment rotation. The corresponding specimen bodies located in different placement holes rotate and adjust the position around the axis of the partition plate, which is convenient for controlling different specimen bodies to be adjusted in turn below the discharge port of the storage tank for material addition. The displacement frequency of different specimen bodies, the material output frequency of the storage tank and the water flow frequency of the regulating pump can be coordinated and controlled. The preparation of cement stabilized soil specimens is completed in different specimen bodies in a multiple and small amount manner, and the curing conditions under the same environment are provided by the curing component to reduce errors. The partition net and soft skeleton in the specimen body provide a forming mold for the preparation of cement stabilized soil, and the soft skeleton has little effect on the subsequent strength test. Even if the cement concrete is broken during the strength test, the falling of debris can be avoided. By adjusting the position of the adjusting seat, the center line of the partition plate is misaligned with the center line of the bearing tube. The crankshaft rotates to make the specimen body contact the inner wall of the bearing tube, and the specimen body is squeezed. The inner wall of the bearing tube is affixed with a strain gauge to monitor the deformation of the inner wall and calculate the bearing capacity of the specimen body. The entire device integrates specimen preparation, curing and measurement into one, thereby improving the measurement efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings: Figure 1 It is a schematic diagram of the overall structure of a cement stabilized soil laboratory strength test device; Figure 2 This is a schematic diagram of the water supply component structure of a cement stabilized soil laboratory strength test device; Figure 3 A schematic diagram of the structure of a curing component of a cement-stabilized soil laboratory strength test device; Figure 4 A schematic diagram of the test assembly structure of a cement stabilized soil laboratory strength test device; Figure 5 A schematic diagram of the specimen structure of a cement-stabilized soil laboratory strength test device; In the figure: 1. movable platform; 11. guide rail frame; 12. drive motor; 13. screw; 14. base; 2. support platform; 3. feed assembly; 31. clamping seat; 32. stand; 33. extension rod; 34. supply motor; 35. storage tank; 4. water supply assembly; 41. fixing plate; 42. water storage tank; 43. regulating pump; 44. supply pipe; 45. adapter; 5. maintenance assembly; 51. shell; 52. bearing cylinder; 53. adapter bin; 6. test assembly; 61. adjusting seat; 62. slide rail; 63. drive cylinder; 64. crank; 65. crankshaft; 66. piston rod; 67. partition plate; 671. placement hole; 672. abutment plate; 68. support; 69. shaft; 7. specimen body; 71. soft skeleton; 72. partition net. DETAILED DESCRIPTION

[0018] See also Figure 1-Figure 5 In an embodiment of the present application, a cement stabilized soil laboratory strength determination device comprises: The movable platform 1 includes guide rail frames 11 connected to each other, and a driving motor 12 and a base 14 are arranged on the guide rail frame 11, and a screw rod 13 is arranged between the driving motor 12 and the base 14, and the screw rod 13 is specifically controlled by the driving motor 12 to rotate; The support platform 2 is slidably arranged on the guide rail frame 11, and the support platform 2 cooperates with the screw rod 13 through a nut. Specifically, the support platform 2 is driven by the screw rod 13 to adjust the position on the guide rail frame 11, so as to facilitate the addition of materials during the subsequent preparation of cement stabilized soil specimens; A feeding assembly 3 is arranged on the side of the movable platform 1, and the feeding assembly 3 includes a clamping seat 31 fixed on the side of the guide rail frame 11, a vertical frame 32 and an extension rod 33 are vertically arranged on the clamping seat 31, and a storage tank 35 is slidably arranged on the vertical frame 32 and the extension rod 33, and a sliding track connected to the storage tank 35 is arranged on the vertical frame 32, and the storage tank 35 is driven by a supply motor 34 fixed on the upper end of the vertical frame 32. Specifically, the storage tank 35 is sleeved on the extension rod 33 to guide the sliding, and the vertical height of the storage tank 35 is driven by the supply motor 34 to adjust the storage tank 35, so as to facilitate the storage tank 35 to add materials and avoid interference in subsequent operations, and the sliding track arranged on the vertical frame 32 can prevent the storage tank 35 from deflecting left and right when sliding up and down, affecting the material filling accuracy; The curing component 5 is connected to the water supply component 4, wherein the curing component 5 comprises a shell 51, a bearing cylinder 52 and a transfer bin 53, the shell 51 is fixedly arranged on the supporting platform 2, and the shell 51 is hollow inside, the bearing cylinder 52 is inserted from the upper end, the transfer bin 53 is connected to the inside of the bearing cylinder 52, and the supporting platform 2 supports the curing component 5 to slide below the storage tank 35; The test assembly 6 is disposed in the carrying tube 52 , and a plurality of test pieces 7 are placed in the test assembly 6 .

[0019] It should be explained that, during the whole process, the required number of specimen bodies 7 are first placed in the test assembly 6, and the supporting platform 2 is adjusted to the position below the feeding assembly 3. Specifically, the positions of the curing assembly 5 and the test assembly 6 located on the supporting platform 2 are adjusted so that the upper end of the specimen body 7 is aligned with the outlet position of the storage tank 35, and the height of the storage tank 35 is adjusted to a suitable position, and materials are added to the specimen body 7. At the same time, the water supply assembly 4 supplies the water required for the preparation and curing of the cement-stabilized soil specimens to the curing assembly 5. After the preparation of the specimen body 7 is completed, it is tested through the test assembly 6.

[0020] As a preferred embodiment, the storage tank 35 stores sand and cement for testing, and a quantitative output control device is provided in the storage tank 35, and the quantitative output control device controls the ratio and output amount of sand and cement outputted from the storage tank 35 to the specimen body 7.

[0021] It needs to be explained that a plurality of specimen bodies 7 are provided, and the determination of cement-stabilized soil is mainly to determine the ratio of cement and sand corresponding to the highest strength. Accordingly, the output of sand and cement is controlled by the storage tank 35 to control different ratios corresponding to different specimen bodies 7, and in the process of supplying sand and cement from the storage tank 35, the degree of mixing of sand, cement and water can be ensured by controlling the supply speed and frequency.

[0022] In this embodiment, Figure 2 The water supply component 4 includes: a fixed plate 41, a water tank 42, a regulating pump 43, a supply pipe 44 and an adapter 45, wherein the water tank 42 is fixed by the fixed plate 41, the water tank 42, the regulating pump 43 and the adapter 45 are connected in sequence by the supply pipe 44, and the adapter 45 is connected to the adapter bin 53, and the water supply amount and supply flow rate are specifically controlled by the regulating pump 43.

[0023] It should be explained that, during the water supply process, the storage tank 35 is used to supply sand and cement synchronously, and the water flow rate is controlled by adjusting the pump 43 so that the sand and cement are evenly mixed in the specimen body 7, reducing the subsequent mixing process. During the mixing process, the driving motor 12 drives the screw 13 to reciprocate, so that the support platform 2 periodically reciprocates to promote mixing. The whole process ensures that the cement-stabilized soil specimen meets the test standards.

[0024] As a preferred embodiment, the interior of the supporting tube 52 is a cylinder with a closed lower end, and water is supplied to the interior of the supporting tube 52 and penetrates into the specimen body 7 to participate in the specimen preparation.

[0025] It should be explained that after the preparation, the specimen body 7 is cured in the supporting tube 52, and the supporting tube 52 meets the moisture and temperature required for curing.

[0026] As a preferred embodiment, the test component 6 includes: An adjustment seat 61, wherein a slide rail 62 is disposed at the lower end of the adjustment seat 61, and the adjustment seat 61 is slidably disposed on the support platform 2 via the slide rail 62, and the position of the adjustment seat 61 is slidably adjusted via the slide rail 62; A driving cylinder 63 is fixedly disposed on the adjusting seat 61, and the driving cylinder 63 is connected to a piston rod 66; The support 68 is fixedly arranged on the adjustment seat 61, and a crankshaft 65 is rotatably arranged on the support 68, the piston rod 66 is connected in the middle of the crankshaft 65, one end of the crankshaft 65 is connected to the crank 64, and the other end is connected to the separation plate 67 through the shaft 69. As a preferred embodiment, a plurality of placement holes 671 are evenly opened on the separation plate 67, and the placement holes 671 are corresponding to the placement of the specimen body 7, and a slot hole for the shaft 69 to pass through is opened at the bottom of the bearing cylinder 52, and the slot hole reserves a margin for the lateral movement adjustment of the shaft 69, and the slot hole is sealed by a sealing ring.

[0027] It needs to be explained that the crankshaft 65 is driven to rotate by the driving cylinder 63, and the separating plate 67 is adjusted to rotate accordingly. The corresponding specimen bodies 7 located in different mounting holes 671 are rotated and adjusted around the axis of the separating plate 67, so that the different specimen bodies 7 are controlled to be adjusted in turn below the discharge port of the storage tank 35 for material addition. In addition, the frequency of position change of different specimen bodies 7, the frequency of material output from the storage tank 35 and the frequency of water delivery by the regulating pump 43 can be coordinated and controlled, so that the preparation of cement stabilized soil specimens can be completed in different specimen bodies 7 in a multiple and small amount manner.

[0028] As a preferred embodiment, an abutment plate 672 is also sleeved and fixedly provided on the shaft rod 69, and the side of the abutment plate 672 abuts against the side wall of the specimen body 7, and a clamping groove is opened on the side of the abutment plate 672 to clamp the specimen body 7. Specifically, the specimen body 7 is fixed together by the abutment plate 672 and the placement hole 671.

[0029] As a preferred embodiment, the lower end surface of the separation plate 67 is higher than the upper end surface of the supporting cylinder 52. By adjusting the position of the adjusting seat 61, the center line of the separation plate 67 is misaligned with the center line of the supporting cylinder 52. The crankshaft 65 rotates to make the specimen body 7 contact the inner wall of the supporting cylinder 52. The specimen body 7 is squeezed, and the inner wall of the supporting cylinder 52 is affixed with a strain gauge to monitor the deformation of the inner wall and calculate the bearing force of the specimen body 7.

[0030] As a preferred embodiment, the specimen body 7 includes a soft skeleton 71 in the form of a column, and a partition net 72 covering the soft skeleton 71, wherein the partition net 72 is water permeable. Specifically, during the specimen preparation process, water is introduced into the supporting tube 52, and the water penetrates into the specimen body 7 through the partition net 72. At the same time, sand and cement are filled into the specimen body 7 through the storage tank 35 to prepare the specimen.

[0031] It needs to be explained that cement-stabilized soil test materials are prepared in batches through the specimen body 7. On the one hand, different proportions are used to efficiently prepare the specimens, and at the same time, the curing conditions under the same environment are used to reduce errors. In addition, the partition net 72 and the soft skeleton 71 in the specimen body 7 provide a molding mold for the preparation of cement-stabilized soil, and the soft skeleton 71 has little effect on the subsequent strength test. Even if the cement concrete is broken during the strength test, the falling of debris can be avoided. The entire device integrates specimen preparation, curing and measurement into one, thereby improving the measurement efficiency.

[0032] A method for determining the laboratory strength of cement-stabilized soil comprises the following steps: Ⅰ. Insert multiple specimens 7 into the corresponding placement holes 671 of the separation plate 67, adjust the positions of different specimens 7 by rotating the crankshaft 65, and move the support platform 2 so that the specimens 7 are respectively placed under the storage tank 35, and fill them with sand and cement, wherein different specimens 7 are filled with sand and cement in different proportions; II. The water supply component 4 supplies water to the inside of the bearing tube 52 to ensure that the water required for the cement and sand in the specimen body 7 to mix and prepare cement-stabilized soil. During the mixing process, the driving motor 12 drives the screw 13 to reciprocate so that the supporting platform 2 periodically reciprocates to promote mixing; III. After the cement-stabilized soil in the specimen body 7 is cured, the strength test of the specimen body 7 is performed by adjusting the position of the separation plate 67 and coordinating the rotation of the crankshaft 65 .

[0033] What has been described above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed in the present application according to the technical solution and application concept of the present application, which should be covered by the protection scope of the present application.

Claims

1. A cement stabilized soil laboratory strength test device, Features: include: The movable platform (1) comprises guide rail frames (11) connected to each other, wherein a driving motor (12) and a base (14) are arranged on the guide rail frame (11), and a screw rod (13) is arranged between the driving motor (12) and the base (14); A support platform (2) is slidably arranged on the guide rail frame (11), and the support platform (2) cooperates with the screw rod (13) via a nut; A material supply assembly (3) is arranged on the side of the movable platform (1), the material supply assembly (3) comprises a clamping seat (31) fixed on the side of the guide rail frame (11), a stand (32) and an extension rod (33) are vertically arranged on the clamping seat (31), and a material storage tank (35) is slidably arranged on the stand (32) and the extension rod (33), a sliding track connected to the material storage tank (35) is arranged on the stand (32), and the material storage tank (35) is driven by a supply motor (34) fixed on the upper end of the stand (32); A maintenance component (5) is connected to the water supply component (4), wherein the maintenance component (5) comprises a shell (51), a bearing cylinder (52) and a transfer bin (53), the shell (51) being fixedly arranged on the support platform (2), and the shell (51) is hollow inside, and the bearing cylinder (52) is inserted and placed from the upper end, the transfer bin (53) is connected to the inside of the bearing cylinder (52), and the support platform (2) supports the maintenance component (5) to slide to the bottom of the storage tank (35); A test assembly (6) is arranged in the supporting tube (52), and a plurality of test pieces (7) are arranged in the test assembly (6).

2. A cement-stabilized soil laboratory strength test device according to claim 1, Features: The material storage tank (35) stores test sand and cement, and a quantitative output control device is provided in the material storage tank (35). The quantitative output control device controls the ratio and output amount of the sand and cement outputted from the material storage tank (35) to the test piece body (7).

3. A cement stabilized soil laboratory strength test device according to claim 1, Features: The water supply assembly (4) comprises: a fixing plate (41), a water storage tank (42), a regulating pump (43), a supply pipe (44) and an adapter (45), wherein the water storage tank (42) is fixed by the fixing plate (41), the water storage tank (42), the regulating pump (43) and the adapter (45) are connected in sequence by the supply pipe (44), and the adapter (45) is connected to the adapter bin (53).

4. A cement stabilized soil laboratory strength test device according to claim 1, Features: The interior of the supporting tube (52) is a cylinder with a closed lower end. Water is supplied to the interior of the supporting tube (52) and penetrates into the specimen body (7) to participate in the specimen preparation.

5. A cement stabilized soil laboratory strength test device according to claim 1, Features: The test component (6) comprises: An adjustment seat (61), wherein a slide rail (62) is provided at the lower end of the adjustment seat (61), and the adjustment seat (61) is slidably arranged on the support platform (2) via the slide rail (62), and the position of the adjustment seat (61) is slidably adjusted via the slide rail (62); A driving cylinder (63) is fixedly disposed on the adjustment seat (61), and the driving cylinder (63) is connected to a piston rod (66); A support (68) is fixedly arranged on the adjustment seat (61), and a crankshaft (65) is rotatably arranged on the support (68). The middle of the crankshaft (65) is connected to the piston rod (66). One end of the crankshaft (65) is connected to the crank (64), and the other end is connected to the partition plate (67) via a shaft (69).

6. A cement stabilized soil laboratory strength test device according to claim 5, Features: The separation plate (67) is evenly provided with a plurality of placement holes (671), the placement holes (671) correspondingly placing the specimen body (7), the bottom of the support tube (52) is provided with a slot hole for the shaft rod (69) to pass through, the slot hole reserves a margin for lateral movement adjustment of the shaft rod (69), and the slot hole is sealed by a sealing ring.

7. A cement stabilized soil laboratory strength test device according to claim 6, Features: An abutment plate (672) is also sleeved and fixedly provided on the shaft rod (69), the side surface of the abutment plate (672) abuts against the side wall of the specimen body (7), and a clamping groove is provided on the side surface of the abutment plate (672) for clamping the specimen body (7).

8. A cement stabilized soil laboratory strength test device according to claim 7, Features: The lower end surface of the separation plate (67) is higher than the upper end surface of the bearing tube (52). By adjusting the position of the adjustment seat (61), the center line of the separation plate (67) and the center line of the bearing tube (52) are misaligned. The crankshaft (65) rotates so that the specimen body (7) contacts the inner wall of the bearing tube (52), and the specimen body (7) is squeezed. A strain gauge is attached to the inner wall of the bearing tube (52) to monitor the deformation of the inner wall and calculate the bearing force of the specimen body (7).

9. A cement stabilized soil laboratory strength test device according to claim 8, Features: The specimen body (7) comprises a columnar soft skeleton (71) and a separation net (72) covering the soft skeleton (71), wherein the separation net (72) is water permeable.

10. A method for determining the laboratory strength of cement-stabilized soil, which uses a cement-stabilized soil laboratory strength determination device as claimed in any one of claims 6 to 9, Features: The steps include: Ⅰ. Inserting a plurality of test pieces (7) into corresponding placement holes (671) of the separation plate (67), adjusting the positions of different test pieces (7) by rotating the crankshaft (65), and simultaneously moving the support platform (2) so that the test pieces (7) are respectively placed under the storage tank (35) to be filled with sand and cement, wherein different test pieces (7) are filled with sand and cement in different proportions; II. The water supply component (4) supplies water to the interior of the bearing cylinder (52) to ensure that the cement and sand in the specimen body (7) have the required water content to prepare cement-stabilized soil. During the mixing process, the driving motor (12) drives the screw (13) to reciprocate, causing the supporting platform (2) to reciprocate periodically to promote mixing. III. After the cement-stabilized soil in the specimen body (7) is cured, the strength test of the specimen body (7) is performed by adjusting the position of the separation plate (67) and coordinating the rotation of the crankshaft (65).

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