Partitioned test platform and method for geomechanical test system

Abstract

The invention relates to the technical field of similar simulation, and particularly discloses a zoning test platform and method for a geomechanical test system.The zoning test platform comprises a fixed platform, a movable platform, a positioning assembly, a walking assembly and a lifting assembly, and the fixed platform comprises a high-position step and a low-position step; the movable platform comprises an oil cylinder base, a first oil cylinder and a bearing plate, the oil cylinder base is connected to the low-position step, the first oil cylinder is connected into the oil cylinder base, the bearing plate is connected to the extending end of the first oil cylinder, the positioning assembly comprises a first positioning piece and a second positioning piece, the first positioning piece is connected to the top face of the high-position step, and the second positioning piece is connected to the movable platform. The walking assembly is connected to the lower portion of the fixed platform, and the lifting assembly is connected between the fixed platform and the walking assembly. According to the partition test platform, the problem of lossless installation of large-size, high-weight and breakable model samples is solved, and the partition test function is met.

Description

Technical Field

[0001] The present invention relates to the field of similar simulation technology, and in particular to a partition test platform and method for a geomechanics test system. Background Art

[0002] Similarity simulation test is an important research method in geotechnical engineering. Through the test system, similar models are loaded and the mechanical response characteristics of similar models are studied, so as to provide guidance for engineering practice. In this process, the installation and loading method of the model specimens have a crucial impact on the accuracy of the test results. When conducting similarity simulation tests, it is necessary to install the similar model into the test system through the sample delivery structure. According to the test requirements, it is often necessary to carry out partition tests on the similar model, that is, to load different partitions of the model differently. For example, when conducting similarity simulation tests on fault slip, the model needs to be divided into the upper plate partition and the lower plate partition of the fault. The loading causes the upper plate partition and the lower plate partition of the fault to produce relative displacement, so that the fault undergoes shear dislocation.

[0003] In the related art, the installation of model specimens generally requires the help of a sample delivery structure. The model is moved to the specified position of the test system through human push or its own power structure, and then the specimen is lifted and installed in place with the help of external lifting equipment. For model specimens with small size, light weight, high strength and good integrity, the traditional sample delivery structure can complete the installation of the model specimen because it is easy to lift the model specimen inside the test system. However, for split models with large size, high weight and low strength, it is difficult for the traditional sample delivery structure to achieve complete and lossless installation of the model specimen. On the one hand, it is difficult to lift large-sized, high-weight, split model specimens inside the test system. On the other hand, lifting the model specimen is very likely to cause damage to the low-strength and easily broken specimens. In addition, the function of the sample delivery structure in the related art is relatively single, and generally only has the function of installing specimens, and it is difficult to meet the function of partitioned experiments. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, an embodiment of the present invention proposes a partition test platform for a geomechanical test system, which supports a model sample through a fixed platform and a movable platform, and lifts and lowers the model sample through a lifting assembly, thereby solving the problem of non-destructive installation of large-sized, heavy-weight, and easily broken model samples, and realizes partition tests on model samples through a fixed platform and a movable platform, satisfying the partition test function.

[0005] The second embodiment of the present invention further proposes a partition test method for a geomechanical test system.

[0006] The partition test platform for the geomechanical test system of the embodiment of the present invention comprises a fixed platform, a movable platform, a positioning assembly, a walking assembly and a lifting assembly. The fixed platform is in the shape of a step, and the fixed platform comprises at least one high step and at least one low step. The movable platform comprises a cylinder seat, a first cylinder and a bearing plate. The cylinder seat is connected to the low step. At least part of the first cylinder is connected to the cylinder seat, and the axial direction of the first cylinder is orthogonal to the upper end surface of the low step. The bearing plate is connected to the protruding end of the first cylinder, and the plate surface of the bearing plate is parallel to the upper end surface of the low step. The positioning assembly comprises at least two first positioning members and at least two second positioning members. The first positioning member is connected to the top surface of the high step, and the second positioning member is connected to the movable platform. The first positioning member and the second positioning member are used to position the model specimen. The walking assembly is connected to the lower part of the fixed platform, and the walking assembly is used to drive the fixed platform to move. The lifting assembly is connected between the fixed platform and the walking assembly, and the lifting assembly is used to lift and lower the fixed platform.

[0007] The partition test platform of the embodiment of the present invention supports the model specimen by means of a fixed platform and a movable platform, and lifts and lowers the model specimen by means of a lifting assembly, thereby solving the problem of non-destructive installation of large-sized, heavy-weight, and easily broken model specimens, and realizing partition testing of the model specimens by means of a fixed platform and a movable platform, thus satisfying the partition test function.

[0008] In some embodiments, the first positioning member and the second positioning member are both right-angle limiting steel structures.

[0009] In some embodiments, the positioning assembly also includes at least two first fasteners and at least two second fasteners, the first fasteners correspond one-to-one to the first positioning member, the first positioning member is detachably connected to the fixed platform via the corresponding first fasteners, the first positioning member can be position-adjusted on the fixed platform and is locked and fixed to the fixed platform via the first fasteners, the second fasteners correspond one-to-one to the second positioning member, the second positioning member is detachably connected to the movable platform via the corresponding second fasteners, the second positioning member can be position-adjusted on the movable platform and is locked and fixed to the movable platform via the second fasteners.

[0010] In some embodiments, the high-level step and the low-level step are arranged sequentially along a first direction, the walking assembly includes at least two driving wheels, at least two driven wheels and at least two driving members, the driving wheels are arranged at intervals along the first direction, the driven wheels correspond one-to-one with the driving wheels, and the driven wheels and the corresponding driving wheels are distributed at intervals along a second direction, the second direction is orthogonal to the first direction, the driving members correspond one-to-one with the driving wheels, and the driving members are transmission-connected with the corresponding driving wheels.

[0011] In some embodiments, the lifting assembly includes at least two second oil cylinders and at least two third oil cylinders, the second oil cylinders correspond one-to-one to the driving wheels, and the lower ends of the second oil cylinders are connected to the corresponding driving wheels through a connecting frame, the upper ends of the second oil cylinders are connected to the lower end of the fixed platform, the third oil cylinders correspond one-to-one to the driven wheels, and the lower ends of the third oil cylinders are connected to the corresponding driven wheels through a connecting frame, and the upper ends of the third oil cylinders are connected to the lower end of the fixed platform.

[0012] The partition test method for a geomechanical test system according to an embodiment of the present invention adopts the test platform described in the above embodiment, and includes:

[0013] Operate the first oil cylinder to make the upper end surface of the bearing plate flush with the upper end surface of the high-level step and maintain it;

[0014] Transferring the model specimen to the partitioned test platform, with a portion of the model specimen located on the high step and another portion of the model specimen located on the movable platform;

[0015] The fixed platform together with the model specimen is lifted up by the lifting assembly, so that the partitioned experimental platform is in contact with the preset track only through the walking mechanism;

[0016] The partition test platform and the model specimen are moved to a designated position of the test system by the walking assembly;

[0017] The fixed platform together with the model specimen is lowered by the lifting assembly until the bottom of the fixed platform contacts the bottom surface of the test chamber of the test system and the walking assembly is free of load;

[0018] The model specimens are loaded using a geomechanical test system, and according to the test plan, the model specimens are partitioned for testing by passively carrying, actively loading, and actively unloading the movable platform.

[0019] The partition test method of the embodiment of the present invention solves the problem of non-destructive installation of large-sized, heavy-weight, and easily broken model specimens by using the above-mentioned partition test platform, and realizes the partition test of the model specimens through a fixed platform and a movable platform, thereby meeting the partition test function.

[0020] In some embodiments, the step of transferring the model specimen to the partition test platform comprises:

[0021] The model specimen is temporarily lifted by external lifting equipment;

[0022] Move the partitioned test platform to just below the model specimen or move the model specimen to just above the partitioned test platform;

[0023] The model specimen is lowered by an external lifting device until the lower end surface of the model specimen contacts the upper end surface of the partitioned test platform.

[0024] In some embodiments, when the model specimen is transferred to the partitioned test platform, the model specimen is positioned by a positioning component.

[0025] In some embodiments, when the fixed platform together with the model specimen is lifted up by the lifting assembly, a closed-loop control system is used to precisely control the lifting assembly to ensure the stability and synchronization of the fixed platform, the movable platform and the model specimen during the lifting process.

[0026] In some embodiments, when the movable platform is passively loaded, actively loaded, or actively unloaded, the loading force of the movable platform is monitored and fed back in real time through sensors to ensure the accuracy and safety of the test process. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional structural schematic diagram of a partitioned test platform for a geomechanical test system according to an embodiment of the present invention.

[0028] Figure 2 It is a front view of a partitioned test platform for a geomechanics test system according to an embodiment of the present invention.

[0029] Figure 3 It is a right view of a partitioned test platform for a geomechanical test system according to an embodiment of the present invention.

[0030] Figure 4 It is a top view of a partitioned test platform for a geomechanical test system according to an embodiment of the present invention.

[0031] Figure 5 It is a schematic diagram of a partition test method for a geomechanical test system according to an embodiment of the present invention.

[0032] Reference numerals:

[0033] Fixed platform 1, high step 11, low step 12,

[0034] Movable platform 2, oil cylinder seat 21, first oil cylinder 22, bearing plate 23,

[0035] Positioning assembly 3, first positioning member 31, second positioning member 32,

[0036] Traveling assembly 4, driving wheel 41, driven wheel 42, driving member 43,

[0037] Lifting assembly 5, second oil cylinder 51, third oil cylinder 52. DETAILED DESCRIPTION

[0038] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0039] The following describes a partitioned test platform and method for a geomechanical test system according to an embodiment of the present invention in conjunction with the accompanying drawings.

[0040] like Figures 1 to 4 As shown, the partition test platform for the geomechanical test system according to the embodiment of the present invention comprises a fixed platform 1, a movable platform 2, a positioning component 3, a walking component 4 and a lifting component 5, wherein:

[0041] The fixed platform 1 is in the shape of a step, and the fixed platform 1 includes at least one high step 11 and at least one low step 12. The high step 11 is used as one of the test areas, and the low step 12 is used to make way for the movable platform 2 so that the movable platform 2 can be flush with the high step 11 to facilitate the placement of model specimens and the control of experimental variables.

[0042] The movable platform 2 includes a cylinder seat 21, a first cylinder 22 and a bearing plate 23. The cylinder seat 21 is connected to the low step 12 to provide support for the first cylinder 22. At least part of the first cylinder 22 is connected to the cylinder seat 21, and the axial direction of the first cylinder 22 is orthogonal to the upper end surface of the low step 12. By controlling the extension and contraction of the first cylinder 22, the height of the bearing plate 23 can be adjusted to keep it flush with or at a different height from the upper end surface of the high step 11. The bearing plate 23 is connected to the protruding end of the first cylinder 22 (such as Figure 1 The upper end shown in the figure), and the plate surface of the bearing plate 23 is parallel to the upper end surface of the low step 12, ensuring that the model specimen remains horizontal during the test.

[0043] The positioning assembly 3 includes at least two first positioning members 31 and at least two second positioning members 32. The first positioning members 31 are connected to the top surface of the high step 11, and the second positioning members 32 are connected to the movable platform 2. The first positioning members 31 and the second positioning members 32 are used to position the model specimen to ensure that the model specimen is placed in a preset position. The specific shape and size of the positioning members can be customized according to the shape and size of the model specimen to ensure that the model specimen will not move or deform during transportation and testing.

[0044] The walking assembly 4 is connected to the lower part of the fixed platform 1. The walking assembly 4 may include wheels, tracks or other forms of moving devices. The walking assembly 4 is used to drive the fixed platform 1 to move and ensure that the platform can move smoothly and accurately to the specified position of the test system.

[0045] The lifting assembly 5 is connected between the fixed platform 1 and the walking assembly 4. The lifting assembly 5 is used to lift and lower the fixed platform 1. The lifting assembly 5 may include an oil cylinder, a gas cylinder or other forms of lifting devices. By controlling the extension and retraction of the lifting assembly 5, the fixed platform 1 and the model specimen thereon can be moved in the vertical direction to meet different needs.

[0046] When in use, the model sample is placed on the partition test platform. The positioning component 3 can ensure that the model sample is accurately placed at the preset position, the walking component 4 can transport the model sample to the set position, and the lifting component 5 can ensure that the model sample is at a set height.

[0047] The partition test platform of the embodiment of the present invention supports the model specimen through the fixed platform 1 and the movable platform 2, and lifts and lowers the model specimen through the lifting component 5, thereby solving the problem of non-destructive installation of large-sized, heavy-weight, and easily broken model specimens, and realizes partition testing of the model specimen through the fixed platform 1 and the movable platform 2, satisfying the partition experiment function.

[0048] like Figure 1 and Figure 4 As shown, in some embodiments, the first positioning member 31 and the second positioning member 32 are both right-angle limiting steel structures. The design of the right-angle limiting steel structure enables the first positioning member 31 and the second positioning member 32 to have sufficient strength and rigidity to withstand various forces and deformations generated by the model specimen during the test, and the design of the right-angle edge can ensure a close fit between the model specimen and the positioning member to avoid movement or tilting during the test.

[0049] In some embodiments, the positioning assembly 3 further includes at least two first fasteners (not shown) and at least two second fasteners (not shown), wherein:

[0050] The first fastener corresponds to the first positioning member 31 one by one. The first positioning member 31 is detachably connected to the fixed platform 1 through the corresponding first fastener. The first fastener can be designed as a combination of bolts and nuts, or other forms of fasteners, such as snaps, pins, etc. The first positioning member 31 can be adjusted in position on the fixed platform 1. After the adjustment is completed, the first positioning member 31 is locked and fixed on the fixed platform 1 by tightening the bolts or using other locking methods, so that the first positioning member 31 can ensure the stability and accuracy of the model specimen on the high step 11.

[0051] The second fastener is similar to the first fastener, and the second fastener corresponds to the second positioning member 32 one by one. The second positioning member 32 is detachably connected to the movable platform 2 through the corresponding second fastener. The second fastener can be designed as a combination of bolts and nuts, or other forms of fasteners can be used, such as buckles, pins, etc. The second positioning member 32 can be adjusted on the movable platform 2. After the adjustment is completed, the second positioning member 32 is locked and fixed on the movable platform 2 by tightening the bolts or using other locking methods, so that the second positioning member 32 can ensure the stability and accuracy of the model specimen on the movable platform 2.

[0052] Therefore, the partitioned experimental platform of the embodiment of the present invention enables the positioning members to be easily disassembled and replaced through the design of the first fastener and the second fastener to adapt to model specimens of different sizes and shapes, and ensure the stability and accuracy of the first positioning member 31 and the second positioning member 32 during the test.

[0053] like Figures 1 to 4 As shown, in some embodiments, the high step 11 and the low step 12 are arranged along a first direction (eg Figure 1 The walking assembly 4 includes at least two driving wheels 41, at least two driven wheels 42 and at least two driving members 43. The driving wheels 41 are arranged in a first direction and are used to drive the walking assembly 4 forward and backward. The driven wheels 42 correspond to the driving wheels 41 one by one, and the driven wheels 42 and the corresponding driving wheels 41 are arranged in a second direction (as shown in the left and right directions). Figure 1 The second direction is orthogonal to the first direction. The driven wheel 42 supports and stabilizes the walking component 4 to ensure the stability of the platform during movement. The driving member 43 corresponds to the driving wheel 41 one by one, and the driving member 43 is connected to the corresponding driving wheel 41 through a transmission device (such as a chain, belt or gear, etc.). The driving member 43 can be an electric motor, a hydraulic motor or other device that can provide power, which is used to provide power to the driving wheel 41.

[0054] like Figure 1As shown, in some embodiments, the lifting assembly 5 includes at least two second cylinders 51 and at least two third cylinders 53, the second cylinders 51 correspond to the driving wheels 41 one by one, and the lower ends of the second cylinders 51 are connected to the corresponding driving wheels 41 through a connecting frame (not shown), the upper ends of the second cylinders 51 are connected to the lower end of the fixed platform 1, the third cylinders 53 correspond to the driven wheels 42 one by one, and the lower ends of the third cylinders 53 are connected to the corresponding driven wheels 42 through a connecting frame, and the upper ends of the third cylinders 53 are connected to the lower end of the fixed platform 1.

[0055] It should be noted that the second cylinder 51 and the third cylinder 53 are used in combination to drive the fixed platform 1 to move in the vertical direction; the connecting frame is a connecting component between the second cylinder 51 and the driving wheel 41, the third cylinder 53 and the driven wheel 42, and can be integrally formed or separated. The shape and size of the connecting frame should be customized according to the installation position and requirements of the second cylinder 51 and the third cylinder 53. The function of the connecting frame is, on the one hand, to withstand the force generated during the lifting process, and on the other hand, to avoid interference between the second cylinder 51 and the driving wheel 41, the third cylinder 53 and the driven wheel 42.

[0056] like Figure 5 As shown, the partition test method for the geomechanics test system according to the embodiment of the present invention includes:

[0057] S1. Operate the first oil cylinder 22 to make the upper end surface of the bearing plate 23 flush with the upper end surface of the high step 11 and maintain it; at this time, when the model sample is placed on the bearing plate 23, part of it can naturally be located on the high step 11, and the other part is located on the movable platform 2.

[0058] S2. Transfer the model specimen to the partitioned test platform, and place a portion of the model specimen on the high step 11, and place the other portion of the model specimen on the movable platform 2; during the transfer process, ensure that the position and posture of the model specimen meet the test requirements.

[0059] S3. Lift the fixed platform 1 together with the model specimen through the lifting assembly 5, so that the partitioned test platform is in contact with the preset track only through the walking mechanism; lift the fixed platform 1 together with the model specimen by operating the lifting assembly 5 (i.e., the second cylinder 51 and the third cylinder 53) (since the movable platform 2 is connected to the fixed platform 1, the movable platform 2 is lifted together when the fixed platform 1 is lifted). At this time, the partitioned test platform is in contact with the preset track only through the walking mechanism, so that the platform can move smoothly.

[0060] S4. Move the partition test platform and the model specimen to the designated position of the test system through the walking component 4; during the movement, the stability and safety of the platform should be ensured.

[0061] S5. The fixed platform 1 together with the model specimen is lowered by the lifting assembly 5 until the bottom of the fixed platform 1 contacts the bottom surface of the test chamber of the test system, and the walking assembly 4 does not bear any weight. When the partitioned test platform reaches the specified position, the fixed platform 1 together with the model specimen is lowered by operating the lifting assembly 5 until the bottom of the fixed platform 1 contacts the bottom surface of the test chamber of the test system, and the walking assembly 4 no longer bears any weight.

[0062] S6. Use the geomechanical test system to load the model specimen, and according to the test plan, realize the partition test of the model specimen by passively bearing, actively loading and actively unloading the movable platform 2; the partition test can simulate the mechanical behavior under different geological conditions and provide strong support for geomechanics research.

[0063] The partition test method of the embodiment of the present invention solves the problem of non-destructive installation of large-sized, heavy-weight, and easily broken model specimens by using the above-mentioned partition test platform, and realizes the partition test of the model specimens through the fixed platform 1 and the movable platform 2, thereby meeting the partition test function.

[0064] In some embodiments, the step of transferring the model specimen to the partition test platform includes:

[0065] The model specimen is temporarily lifted by external lifting equipment (such as a crane, hoist or special lifting frame, etc.). The selection of lifting equipment should be determined based on factors such as the weight, size and shape of the model specimen to ensure safety and stability during the lifting process. Before lifting the model specimen, ensure that the connection between the hook, sling or lifting belt and other components of the lifting equipment and the model specimen is firm and reliable to avoid falling off or damage during the lifting process.

[0066] Move the partitioned test platform to directly below the model specimen, or move the model specimen to directly above the partitioned test platform. During the movement, ensure the stability and safety of the platform and specimen to avoid accidents such as collision or tilting.

[0067] After confirming that the relative positions of the platform and the specimen are correct, the model specimen is slowly lowered by an external lifting device. During the lowering process, close attention should be paid to the contact between the specimen and the platform to ensure that the specimen is placed stably on the platform to avoid impact or damage. When the lower end face of the model specimen contacts the upper end face of the partition test platform, the lowering operation is stopped to avoid damage to the model specimen by the lifting device.

[0068] In some embodiments, when the model specimen is transferred to the partition test platform, the model specimen is positioned by the positioning component 3 .

[0069] It should be noted that, on the bearing surface of the partition test platform, the positioning component 3 is pre-installed according to the size and shape of the model specimen. Before the model specimen is transferred to the platform, the specimen can be roughly adjusted to the position corresponding to the positioning component 3 through external lifting equipment or other auxiliary equipment, and then the specimen can be slowly lowered so that it contacts and is restricted by the positioning component 3, so as to complete the positioning of the model specimen.

[0070] In some embodiments, when the fixed platform 1 together with the model specimen is lifted up by the lifting assembly 5, a closed-loop control system is used to precisely control the lifting assembly 5 to ensure the stability and synchronization of the fixed platform 1, the movable platform 2 and the model specimen during the lifting process, thereby avoiding unnecessary damage to the model specimen.

[0071] In some embodiments, when the movable platform 2 is passively loaded, actively loaded, or actively unloaded, the loading force of the movable platform 2 is monitored and fed back in real time through sensors to ensure the accuracy and safety of the test process.

[0072] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0073] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0074] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0075] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0076] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0077] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. A partition test platform for a geomechanical test system, characterized in that: include: A fixed platform, the fixed platform is in a step shape, and the fixed platform includes at least one high step and at least one low step; A movable platform, the movable platform comprising a cylinder seat, a first cylinder and a bearing plate, the cylinder seat being connected to the low-level step, at least a portion of the first cylinder being connected to the cylinder seat, and an axial direction of the first cylinder being orthogonal to an upper end surface of the low-level step, the bearing plate being connected to an extended end of the first cylinder, and a plate surface of the bearing plate being parallel to an upper end surface of the low-level step; A positioning assembly, the positioning assembly comprising at least two first positioning members and at least two second positioning members, the first positioning members are connected to the top surface of the high step, the second positioning members are connected to the movable platform, and the first positioning members and the second positioning members are used to position the model specimen; A walking assembly, the walking assembly is connected to the lower part of the fixed platform, and the walking assembly is used to drive the fixed platform to move; A lifting assembly is connected between the fixed platform and the walking assembly, and is used for lifting and lowering the fixed platform.

2. The partitioned test platform for geomechanics test system according to claim 1, characterized in that: The first positioning member and the second positioning member are both right-angle limiting steel structures.

3. The partitioned test platform for a geomechanical test system according to claim 1 or 2, characterized in that: The positioning assembly also includes at least two first fasteners and at least two second fasteners, the first fasteners correspond to the first positioning members one by one, the first positioning members are detachably connected to the fixed platform via the corresponding first fasteners, the first positioning members can be position-adjusted on the fixed platform, and are locked and fixed to the fixed platform via the first fasteners, the second fasteners correspond to the second positioning members one by one, the second positioning members are detachably connected to the movable platform via the corresponding second fasteners, the second positioning members can be position-adjusted on the movable platform, and are locked and fixed to the movable platform via the second fasteners.

4. The partitioned test platform for a geomechanical test system according to claim 1, characterized in that: The high-position steps and the low-position steps are arranged sequentially along a first direction, the walking assembly comprises at least two driving wheels, at least two driven wheels and at least two driving members, the driving wheels are arranged at intervals along the first direction, the driven wheels correspond one-to-one with the driving wheels, and the driven wheels and the corresponding driving wheels are distributed at intervals along a second direction, the second direction is orthogonal to the first direction, the driving members correspond one-to-one with the driving wheels, and the driving members are drivingly connected with the corresponding driving wheels.

5. The partitioned test platform for a geomechanical test system according to claim 4, characterized in that: The lifting assembly includes at least two second oil cylinders and at least two third oil cylinders, the second oil cylinders correspond to the driving wheels one by one, and the lower ends of the second oil cylinders are connected to the corresponding driving wheels through a connecting frame, the upper ends of the second oil cylinders are connected to the lower end of the fixed platform, the third oil cylinders correspond to the driven wheels one by one, and the lower ends of the third oil cylinders are connected to the corresponding driven wheels through a connecting frame, and the upper ends of the third oil cylinders are connected to the lower end of the fixed platform.

6. A partition test method for a geomechanical test system, using the test platform described in any one of claims 1 to 5, characterized in that: include: Operate the first oil cylinder to make the upper end surface of the bearing plate flush with the upper end surface of the high-level step and maintain it; Transferring the model specimen to the partitioned test platform, with a portion of the model specimen located on the high step and another portion of the model specimen located on the movable platform; The fixed platform together with the model specimen is lifted up by the lifting assembly, so that the partitioned experimental platform is in contact with the preset track only through the walking mechanism; The partition test platform and the model specimen are moved to a designated position of the test system by the walking assembly; The fixed platform together with the model specimen is lowered by the lifting assembly until the bottom of the fixed platform contacts the bottom surface of the test chamber of the test system and the walking assembly is free of load; The model specimens are loaded using a geomechanical test system, and according to the test plan, the model specimens are partitioned for testing by passively carrying, actively loading, and actively unloading the movable platform.

7. The zoning test method for a geomechanical test system according to claim 6, characterized in that: The steps of transferring the model specimen to the partition test platform include: The model specimen is temporarily lifted by external lifting equipment; Move the partitioned test platform to just below the model specimen or move the model specimen to just above the partitioned test platform; The model specimen is lowered by an external lifting device until the lower end surface of the model specimen contacts the upper end surface of the partitioned test platform.

8. The zoning test method for a geomechanical test system according to claim 7, characterized in that: When the model specimen is transferred to the partition test platform, the model specimen is positioned by a positioning component.

9. The zoning test method for a geomechanical test system according to claim 6, characterized in that: When the fixed platform together with the model sample is lifted up by the lifting assembly, a closed-loop control system is used to accurately control the lifting assembly to ensure the stability and synchronization of the fixed platform, the movable platform and the model sample during the lifting process.

10. The zoning test method for a geomechanical test system according to claim 6, characterized in that: When the movable platform is passively loaded, actively loaded, and actively unloaded, the loading force of the movable platform is monitored and fed back in real time through sensors to ensure the accuracy and safety of the test process.

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