Slope support model test device

Abstract

The invention belongs to the technical field of slope support, and discloses a slope support model test device which comprises a box body and a retaining wall panel, and the upper end of the box body is open; a horizontal partition plate is installed in the middle of the interior of the box body and divides the interior of the box body into a lower sealing cavity and an upper opening cavity, the lower portion of the retaining wall panel is located in the upper opening cavity, and the lower portion of the retaining wall panel divides the upper opening cavity into a water storage bin and a filling bin; the lower end of the retaining wall panel abuts against the horizontal partition plate, and an inclination positioning mechanism is arranged between the box body and the retaining wall panel. One surface of the retaining wall panel is connected with a force transducer, and the force transducer is connected with a pressure display through a circuit; a plurality of leakage grooves are formed in the retaining wall panel, and a drawer located below the leakage grooves is arranged in the lower sealing cavity. According to the invention, the inclination of the retaining wall panel is adjusted through the cooperation of the inclination positioning mechanism, and the condition of the retaining wall panel at each inclination angle is accurately simulated, so that the matching of the test result in practical application is more accurate.

Description

Technical Field

[0001] The invention belongs to the technical field of slope support, and in particular relates to a slope support model test device. Background Art

[0002] Slope engineering is one of the most widely used engineering projects in my country, and is particularly important in the southwestern mountainous areas. Frequent slope landslides in some areas of southern my country have resulted in complex geological conditions and different forms of protection. Large-scale road and bridge construction is often accompanied nearby. Without comprehensive and multi-angle research, it is difficult to ensure the safety of slope protection projects and road and bridge construction.

[0003] The current slope support system is damaged due to improper design. The damage is manifested in the following forms: deformation of the retaining wall panel of the retaining structure, slope settlement, wading of the retaining wall panel, etc. In the design of the slope support system, it is particularly important to obtain the soil pressure, slope settlement and wading of the retaining wall panel. The existing slope model test can only test one aspect of the slope, and cannot test the slope in an all-round way. According to the displacement of the retaining wall panel, the retaining wall panel can be divided into three conditions: static, active and passive. The existing indoor model test can only simulate one type of retaining wall panel.

[0004] In response to the above problems, a utility model patent with authorization announcement number CN213715219U discloses a multifunctional slope support model test box, which can simply simulate the three situations of the retaining wall panel facing static, active and passive. However, its structure is relatively simple. If it is necessary to apply the actual slope according to its structure in response to changes in actual conditions, precise adjustment simulation is still required. Its actual simulation still has a lot of room for improvement. Summary of the invention

[0005] The purpose of the present invention is to provide a slope support model test device to solve the above problems existing in the prior art.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A slope support model test device comprises a box body and a retaining wall panel, wherein the upper end of the box body is open; a horizontal partition is installed in the middle of the box body, the horizontal partition divides the interior of the box body into a lower sealed cavity and an upper open cavity, the lower part of the retaining wall panel is located in the upper open cavity, and the lower part of the retaining wall panel divides the upper open cavity into a water storage bin and a filling bin; the lower end of the retaining wall panel abuts against the horizontal partition, and an inclination positioning mechanism is arranged between the box body and the retaining wall panel, which is used to coordinately position the inclination of the retaining wall panel through the inclination positioning mechanism; a force sensor is connected to one side of the retaining wall panel, and the force sensor is connected to a pressure display through a line; a plurality of leakage grooves are opened on the retaining wall panel at the bottom of the filling bin, and a drawer is arranged below the leakage groove in the lower sealed cavity.

[0007] As a preferred technical solution in the present invention, the two sides of the box body are detachably connected with positioning shaft assemblies, the lower end of the baffle panel is detachably connected to the two positioning shaft assemblies, and the lower end of the baffle panel is an arc-shaped mechanism abutting against the horizontal partition.

[0008] As a preferred technical solution in the present invention, the positioning shaft assembly includes a positioning shaft and a positioning piece. The positioning shaft is plugged into the lower ends of the box body and the baffle wall panel, and the positioning shaft is rotatably connected to the box body and / or the baffle wall panel; the positioning piece is detachably connected to the box body, and the positioning shaft is clamped between the positioning piece and the baffle wall panel.

[0009] As a preferred technical solution in the present invention, the positioning shaft includes a first circular shaft segment, a second circular shaft segment and a third circular shaft segment connected in sequence, the diameter of the second circular shaft segment is larger than the diameter of the first circular shaft segment and the diameter of the third circular shaft segment, first mounting holes are provided on both sides of the box body, the first mounting hole includes a first threaded hole and a first circular hole coaxially connected from the outside to the inside, the outer diameter of the first threaded hole is larger than the inner diameter of the first circular hole, and rotating shaft mounting holes are provided on both sides of the retaining wall panel, the first circular shaft segment of the positioning shaft is matched and inserted in the rotating shaft mounting hole, the second circular shaft segment of the positioning shaft is matched and inserted in the first circular hole, and the second circular shaft segment of the positioning shaft is abutted against the positioning member and the retaining wall panel, the positioning shaft coaxially passes through the first threaded hole and extends outside the box body; a first through hole is provided in the middle of the positioning member, the first circular shaft segment of the positioning shaft passes through the first through hole, one end of the positioning member is a screw segment threadedly connected to the first threaded hole, and the other end of the positioning member is a tightening adjustment segment arranged outside the box body.

[0010] As a preferred technical solution in the present invention, the inclination positioning mechanism is rollingly arranged on the box body, one side of the inclination positioning mechanism is movably connected to the upper part of the baffle wall panel, and a positioning plate is installed on the other side of the inclination positioning mechanism. When the inclination positioning mechanism moves with the inclination of the baffle wall panel, the positioning plate can move in the direction away from the outer wall of the box body. When the baffle wall panel is positioned, the positioning plate can move in the direction close to the outer wall of the box body and frictionally fit with the outer wall of the box body.

[0011] As a preferred technical solution in the present invention, the upper part of the retaining wall panel is provided with a long slide groove extending along its length direction, and the long slide groove runs through both ends of the retaining wall panel; a central axis is movably connected in the long slide groove, and both ends of the central axis are connected to two inclination positioning mechanisms, and the positioning plate is movably connected to the central axis.

[0012] As a preferred technical solution in the present invention, the inclination positioning mechanism includes a rolling bearing, a push ring and the positioning plate, the rolling bearing is installed on the central axis, and the outer ring of the rolling bearing is supported on the box body; the positioning plate is arranged on the side of the rolling bearing away from the retaining wall panel, the push ring is threadedly connected to the side of the positioning plate away from the retaining wall panel, and the push ring is abutted against the positioning plate.

[0013] As a preferred technical solution in the present invention, the inclination positioning mechanism also includes a limit sleeve, and both ends of the central axis are provided with a first cylindrical step and a second cylindrical step with gradually decreasing diameters, the second cylindrical step is located on the side of the first cylindrical step away from the retaining wall panel, the rolling bearing is sleeved on the outside of the first cylindrical step, and the rolling bearing and the retaining wall panel are spaced apart; the limit sleeve is threadedly connected to the second cylindrical step, and the limit sleeve abuts against the inner ring of the rolling bearing; a sliding connection section is provided at one end of the limit sleeve away from the retaining wall panel, the positioning plate is sleeved on the sliding connection section, and the push ring is threadedly connected to the second cylindrical step on the side of the limit sleeve away from the retaining wall panel.

[0014] As a preferred technical solution in the present invention, the positioning plate is movably connected to the outside of the sliding connection section of the limit sleeve through a ball bearing, and the push ring abuts against the inner ring of the ball bearing; the side of the lower part of the positioning plate close to the box body is a first friction surface, and both sides of the box body are provided with second friction surfaces extending along its length direction, and the first friction surface and the second friction surface are arranged correspondingly.

[0015] As a preferred technical solution in the present invention, a triangular arrow is provided at the lower end of the positioning plate, and an inclination scale line extending along the length direction of the box is provided on the side of the box below the second friction surface, and the lower end of the triangular arrow is provided corresponding to the inclination scale line.

[0016] Beneficial effect: The retaining wall panel of the present invention divides the upper opening into a water storage bin and a filling bin. During the test, fillers are placed in the filling bin, and then the inclination of the retaining wall panel is adjusted through the cooperation of the inclination positioning mechanism to accurately simulate the conditions of the retaining wall panel at various inclination angles, thereby making the test results more accurately matched in actual applications. It can simulate the three conditions of static, active and passive facing of the retaining wall panel, which solves the problem that the existing simulation device can only simulate one type of retaining wall panel. The cooperation of the leakage groove and the drawer can simulate the slope settlement phenomenon by taking out the drawer. A force sensor is provided on one side of the retaining wall panel and the pressure display is connected through a line to display the soil pressure of the retaining wall panel. The water storage bin can store water to simulate the wading condition of the retaining wall panel, which solves the problem that the existing slope model test can only test one aspect of the slope and cannot test the slope in an all-round way. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a side view of the present invention; Figure 2 for Figure 1 A magnified schematic diagram of part A; Figure 3 for Figure 1 BB section view.

[0018] Figure 4 for Figure 3 Enlarged schematic diagram of part C.

[0019] In the figure: 1-box; 11-horizontal partition; 12-drawer; 13-second friction surface; 2-wall panel; 21-long slide; 3-inclination positioning mechanism; 31-positioning plate; 32-rolling bearing; 33-push ring; 34-limiting sleeve; 35-ball bearing; 36-triangle arrow; 4-positioning shaft assembly; 41-positioning shaft; 42-positioning piece; 5-center shaft. DETAILED DESCRIPTION

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be briefly introduced below in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0021] Example: like Figure 1-Figure 4 As shown, this embodiment provides a slope support model test device, including a box body 1 and a retaining wall panel 2. The upper end of the box body 1 is open, which is convenient for placing the retaining wall panel 2 and injecting water and fillers into the box body 1; a horizontal partition 11 is installed in the middle of the box body 1, and the horizontal partition 11 divides the interior of the box body 1 into a lower sealed cavity and an upper open cavity. The lower part of the retaining wall panel 2 is located in the upper open cavity, and the lower part of the retaining wall panel 2 divides the upper open cavity into a water storage bin and a filling bin. The water storage bin can store water to simulate the wading situation of the retaining wall panel 2; the retaining wall panel 2 The lower end is in contact with the horizontal partition 11, reducing the connectivity between the water storage bin and the filling bin, thereby weakening the intercommunication between the two chambers. An inclination positioning mechanism 3 is arranged between the box body 1 and the retaining wall panel 2, for cooperating with the inclination positioning mechanism 3 to position the retaining wall panel 2, thereby achieving more precise simulation adjustment; a force sensor is connected to one side of the retaining wall panel 2, and the force sensor is connected to a pressure display through a line; a plurality of leakage grooves are provided on the retaining wall panel 2 at the bottom of the filling bin, and a drawer 12 located below the leakage groove is arranged in the lower sealed cavity.

[0022] The retaining wall panel 2 of the present invention divides the upper opening into a water storage bin and a filling bin. During the test, fillers are placed in the filling bin, and then the inclination of the retaining wall panel 2 is adjusted through the cooperation of the inclination positioning mechanism 3 to accurately simulate the conditions of the retaining wall panel 2 at various inclination angles, thereby making the test results more accurately matched in actual applications. It can simulate the three conditions of the retaining wall panel 2 facing static, active and passive, which solves the problem that the existing simulation device can only simulate one type of retaining wall panel 2. The cooperation between the leakage groove and the drawer 12 can simulate the slope settlement phenomenon by taking out the drawer 12. A force sensor is provided on one side of the retaining wall panel 2 and the pressure display is connected to the pressure through a line to display the soil pressure of the retaining wall panel. The water storage bin can store water to simulate the wading situation of the retaining wall panel 2, which solves the problem that the existing slope model test can only test one aspect of the slope and cannot test the slope in an all-round way.

[0023] As a preferred implementation scheme in this embodiment, it needs to be further explained that the two sides of the box body 1 are detachably connected with the positioning shaft assemblies 4, and the lower end of the baffle wall panel 2 is detachably connected to the two positioning shaft assemblies 4, which is convenient for loading and unloading the baffle wall panel 2, and the lower end of the baffle wall panel 2 is an arc-shaped mechanism abutting against the horizontal partition 11, which does not affect the swing of the baffle wall panel 2. At the same time, when the baffle wall panel 2 is tilted, it still does not affect the abutment between the baffle wall panel 2 and the horizontal partition 11, thereby ensuring the sealing.

[0024] As a preferred implementation scheme in this embodiment, it needs to be further explained that the positioning shaft assembly 4 includes a positioning shaft 41 and a positioning member 42, the positioning shaft 41 is plugged into the lower ends of the box body 1 and the baffle wall panel 2, and the positioning shaft 41 is rotatably connected to the box body 1 and / or the baffle wall panel 2, thereby ensuring that the baffle wall panel 2 can swing stably in the box body 1; the positioning member 42 is detachably connected to the box body 1, which facilitates the loading and unloading of the baffle wall panel 2, and the positioning shaft 41 is clamped between the positioning member 42 and the baffle wall panel 2 to ensure the stability of the positioning member 42, thereby ensuring the stability of the baffle wall panel 2.

[0025] As a preferred implementation scheme in this embodiment, it needs to be further explained that the positioning shaft 41 includes a first circular shaft segment, a second circular shaft segment and a third circular shaft segment connected in sequence, the diameter of the second circular shaft segment is larger than the diameter of the first circular shaft segment and the diameter of the third circular shaft segment, first mounting holes are provided on both sides of the box body 1, the first mounting hole includes a first threaded hole and a first circular hole coaxially connected from the outside to the inside, the outer diameter of the first threaded hole is larger than the inner diameter of the first circular hole, and shaft mounting holes are provided on both sides of the retaining wall panel 2, the first circular shaft segment of the positioning shaft 41 is matched and inserted into the shaft mounting hole, thereby realizing the quick loading and unloading of the retaining wall panel 2, and the second circular shaft segment of the positioning shaft 41 The first and second circular shaft sections of the positioning shaft 41 are matched and inserted in the first circular hole, and the second circular shaft section of the positioning shaft 41 is in contact with the positioning piece 42 and the retaining wall panel 2 to ensure the stability of the positioning shaft 41. The positioning shaft 41 coaxially passes through the first threaded hole and extends to the outside of the box body 1, so as to facilitate the loading and unloading of the positioning shaft 41. A first through hole is provided in the middle of the positioning piece 42, and the first circular shaft section of the positioning shaft 41 passes through the first through hole, which does not affect the loading and unloading of the positioning piece 42. One end of the positioning piece 42 is a screw section threadedly connected to the first threaded hole, and the other end of the positioning piece 42 is a tightening adjustment section arranged outside the box body 1, which can ensure the rapid loading and unloading of the positioning piece 42, thereby ensuring the stability of the positioning shaft 41.

[0026] As a preferred implementation scheme in this embodiment, it needs to be further explained that the inclination positioning mechanism 3 is rollingly arranged on the box body 1, and one side of the inclination positioning mechanism 3 is movably connected to the upper part of the retaining wall panel 2, so that when the retaining wall panel 2 changes its inclination angle, the inclination positioning mechanism 3 can also move together, so as to realize the real-time coordination between the inclination positioning mechanism 3 and the retaining wall panel 2, thereby not affecting the angle adjustment of the retaining wall panel 2, and a positioning plate 31 is installed on the other side of the inclination positioning mechanism 3. When the inclination positioning mechanism 3 is adjusted with the inclination of the retaining wall panel 2 When moving obliquely, the positioning plate 31 can move in the direction away from the outer wall of the box body 1. When the baffle panel 2 is positioned, the positioning plate 31 can move in the direction close to the outer wall of the box body 1 and frictionally fit with the outer wall of the box body 1. When the inclination of the baffle panel 2 is adjusted, the positioning plate 31 is controlled to be away from the outer wall of the box body 1. When the inclination of the baffle panel 2 is adjusted to the right position, the positioning plate 31 is controlled to be close to the outer wall of the box body 1. The friction force can be used to position the positioning plate 31, and then the positioning of the baffle panel 2 is achieved through the inclination positioning mechanism 3, thereby ensuring the stability of the baffle panel 2.

[0027] As a preferred implementation scheme in this embodiment, it needs to be further explained that a long slide groove 21 extending along its length direction is opened on the upper part of the retaining wall panel 2, and the long slide groove 21 runs through both ends of the retaining wall panel 2; a central axis 5 is movably connected in the long slide groove 21, and both ends of the central axis 5 are connected to two inclination positioning mechanisms 3, and the positioning plate 31 is movably connected to the central axis 5. The central axis 5 can rotate and slide in the long slide groove 21, and can also roll, thereby realizing the active coordination between the inclination positioning mechanism 3 and the retaining wall panel 2.

[0028] As a preferred implementation scheme in this embodiment, it needs to be further explained that the inclination positioning mechanism 3 includes a rolling bearing 32, a push ring 33 and the positioning plate 31. The rolling bearing 32 is installed on the central axis 5, and the outer ring of the rolling bearing 32 is supported on the box body 1, thereby ensuring the stability of the central axis 5 and the flexible adjustment of the inclination positioning mechanism 3 on the box body 1; the positioning plate 31 is arranged on the side of the rolling bearing 32 away from the baffle wall panel 2, and the push ring 33 is threadedly connected to the side of the positioning plate 31 away from the baffle wall panel 2, and the push ring 33 is abutted against the positioning plate 31. When the inclination of the baffle wall panel 2 needs to be adjusted, the push ring 33 is loosened to move the positioning plate 31 a little to the side away from the baffle wall panel 2. After the inclination of the baffle wall panel 2 is adjusted to the right position, the reverse operation is performed to lock the positioning plate 31, and the adjustment is simple and convenient.

[0029] As a preferred implementation scheme in this embodiment, it needs to be further explained that the inclination positioning mechanism 3 also includes a limiting sleeve 34, and both ends of the central axis 5 are provided with a first cylindrical step and a second cylindrical step with gradually decreasing diameters, and the second cylindrical step is located on the side of the first cylindrical step away from the retaining wall panel 2, and the rolling bearing 32 is sleeved on the outside of the first cylindrical step, and the rolling bearing 32 and the retaining wall panel 2 are spaced apart, thereby avoiding unnecessary friction when the retaining wall panel 2 is tilted and adjusted; the limiting sleeve 34 is threadedly connected to the second cylindrical step, and the limiting sleeve 34 abuts against the inner ring of the rolling bearing 32, thereby ensuring the stability of the rolling bearing 32; the limiting sleeve 34 is provided with a sliding connection section at one end away from the retaining wall panel 2, the positioning plate 31 is sleeved on the sliding connection section, and the push ring 33 is threadedly connected to the second cylindrical step on the side of the limiting sleeve 34 away from the retaining wall panel 2, as shown Figure 4 As shown, the outer wall of the limiting sleeve 34 is designed to be a T-shaped sleeve structure, so that when the positioning plate 31 is fitted with the box body 1, it can also be consistently locked on the limiting sleeve 34, further enhancing stability.

[0030] As a preferred implementation scheme in this embodiment, it needs to be further explained that the positioning plate 31 is movably connected to the outside of the sliding connection section of the limiting sleeve 34 through a ball bearing 35, and the push ring 33 abuts against the inner ring of the ball bearing 35, thereby ensuring the flexibility of the limiting sleeve 34. When the retaining wall panel 2 is tilted, the positioning plate 31 remains unchanged under the action of its own gravity, thereby ensuring its stable positioning with the box body 1. It needs to be explained that, preferably, the lower part of the positioning plate 31 is longer, so that the contact surface between the positioning plate 31 and the retaining wall panel 2 can be larger, and the contact position of the positioning plate 31 with the retaining wall panel 2 under the action of its own gravity remains unchanged; the side of the lower part of the positioning plate 31 close to the box body 1 is a first friction surface, and both sides of the box body 1 are provided with a second friction surface 13 extending along its length direction, and the first friction surface and the second friction surface 13 are arranged correspondingly, thereby ensuring maximum contact friction, thereby enhancing the stability of the retaining wall panel 2.

[0031] As a preferred implementation scheme in this embodiment, it needs to be further explained that a triangular arrow 36 is provided at the lower end of the positioning plate 31, and an inclination scale line extending along the length direction of the box body 1 is provided on the side of the box body 1 below the second friction surface 13, and the lower end of the triangular arrow 36 is arranged corresponding to the inclination scale line. When the inclination of the retaining wall panel 2 is adjusted, the triangular arrow 36 moves horizontally along the box body, and then the inclination angle of the retaining wall panel 2 can be quickly and accurately determined according to the direction of the triangular arrow 36 at the inclination scale line, so that the adjustment of the retaining wall panel 2 is more accurate and easy.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A slope support model test device, characterized in that: The invention comprises a box body (1) and a baffle panel (2), wherein the box body (1) has an opening at the upper end; a horizontal partition (11) is installed in the middle of the box body (1), the horizontal partition (11) divides the interior of the box body (1) into a lower sealed cavity and an upper open cavity; the lower part of the baffle panel (2) is located in the upper open cavity, and the lower part of the baffle panel (2) divides the upper open cavity into a water storage chamber and a filling chamber; the lower end of the baffle panel (2) abuts against the horizontal partition (11); an inclination positioning mechanism (3) is arranged between the box body (1) and the baffle panel (2), and is used for coordinating and positioning the inclination of the baffle panel (2) through the inclination positioning mechanism (3); a force sensor is connected to one side of the baffle panel (2), and the force sensor is connected to a pressure display via a line; a plurality of leakage grooves are opened on the baffle panel (2) and are located at the bottom of the filling chamber; a drawer (12) is arranged below the leakage grooves in the lower sealed cavity.

2. A slope support model test device according to claim 1, characterized in that: The two sides of the box body (1) are detachably connected with positioning shaft assemblies (4), the lower end of the retaining wall panel (2) is detachably connected to the two positioning shaft assemblies (4), and the lower end of the retaining wall panel (2) is an arc-shaped mechanism that abuts against the horizontal partition plate (11).

3. A slope support model test device according to claim 2, characterized in that: The positioning shaft assembly (4) comprises a positioning shaft (41) and a positioning member (42); the positioning shaft (41) is plugged into the lower ends of the box body (1) and the baffle wall panel (2), and the positioning shaft (41) is rotatably connected to the box body (1) and / or the baffle wall panel (2); the positioning member (42) is detachably connected to the box body (1), and the positioning shaft (41) is clamped between the positioning member (42) and the baffle wall panel (2).

4. A slope support model test device according to claim 3, characterized in that: The positioning shaft (41) comprises a first circular shaft section, a second circular shaft section and a third circular shaft section connected in sequence, the diameter of the second circular shaft section is larger than the diameter of the first circular shaft section and the diameter of the third circular shaft section, first mounting holes are provided on both sides of the box body (1), the first mounting holes comprise a first threaded hole and a first circular hole which are coaxially connected from the outside to the inside, the outer diameter of the first threaded hole is larger than the inner diameter of the first circular hole, rotating shaft mounting holes are provided on both sides of the retaining wall panel (2), the first circular shaft section of the positioning shaft (41) is matched and inserted into the rotating shaft mounting hole, and the positioning shaft ( The second circular shaft section of the positioning shaft (41) is matched and inserted into the first circular hole, and the second circular shaft section of the positioning shaft (41) is in contact with both the positioning member (42) and the retaining wall panel (2), and the positioning shaft (41) coaxially passes through the first threaded hole and extends to the outside of the box body (1); a first through hole is provided in the middle of the positioning member (42), and the first circular shaft section of the positioning shaft (41) passes through the first through hole, one end of the positioning member (42) is a screw section threadedly connected to the first threaded hole, and the other end of the positioning member (42) is a tightening adjustment section provided outside the box body (1).

5. A slope support model test device according to any one of claims 1 to 4, characterized in that: The inclination positioning mechanism (3) is rollably arranged on the box body (1); one side of the inclination positioning mechanism (3) is movably connected to the upper part of the retaining wall panel (2); a positioning plate (31) is installed on the other side of the inclination positioning mechanism (3); when the inclination positioning mechanism (3) moves along with the inclination of the retaining wall panel (2), the positioning plate (31) can move in a direction away from the outer wall of the box body (1); when the retaining wall panel (2) is positioned, the positioning plate (31) can move in a direction close to the outer wall of the box body (1) and frictionally fit with the outer wall of the box body (1).

6. A slope support model test device according to claim 5, characterized in that: The upper portion of the retaining wall panel (2) is provided with a long slide groove (21) extending along its length direction, and the long slide groove (21) passes through both ends of the retaining wall panel (2); a central axis (5) is movably connected in the long slide groove (21), and both ends of the central axis (5) are connected to two inclination positioning mechanisms (3), and a positioning plate (31) is movably connected to the central axis (5).

7. A slope support model test device according to claim 6, characterized in that: The inclination positioning mechanism (3) comprises a rolling bearing (32), a push ring (33) and the positioning plate (31); the rolling bearing (32) is mounted on the central shaft (5); the outer ring of the rolling bearing (32) is supported on the box body (1); the positioning plate (31) is arranged on a side of the rolling bearing (32) away from the retaining wall panel (2); the push ring (33) is threadedly connected to a side of the positioning plate (31) away from the retaining wall panel (2), and the push ring (33) is in abutment with the positioning plate (31).

8. A slope support model test device according to claim 7, characterized in that: The inclination positioning mechanism (3) further comprises a limiting sleeve (34); both ends of the central axis (5) are provided with a first cylindrical step and a second cylindrical step with gradually decreasing diameters; the second cylindrical step is located on a side of the first cylindrical step away from the retaining wall panel (2); the rolling bearing (32) is sleeved outside the first cylindrical step, and the rolling bearing (32) and the retaining wall panel (2) are spaced apart; the limiting sleeve (34) is threadedly connected to the second cylindrical step, and the limiting sleeve (34) abuts against the inner ring of the rolling bearing (32); a sliding connection section is provided at one end of the limiting sleeve (34) away from the retaining wall panel (2); the positioning plate (31) is sleeved on the sliding connection section, and the push ring (33) is threadedly connected to the second cylindrical step on the side of the limiting sleeve (34) away from the retaining wall panel (2).

9. A slope support model test device according to claim 8, characterized in that: The positioning plate (31) is movably connected to the outside of the sliding connection section of the limiting sleeve (34) through a ball bearing (35), and the push ring (33) abuts against the inner ring of the ball bearing (35); a side of the lower part of the positioning plate (31) close to the box body (1) is a first friction surface, and both sides of the box body (1) are provided with second friction surfaces (13) extending along the length direction thereof, and the first friction surface and the second friction surface (13) are arranged correspondingly.

10. A slope support model test device according to claim 9, characterized in that: A triangular arrow (36) is provided at the lower end of the positioning plate (31), and an inclination scale line extending along the length direction of the box body (1) is provided on the side surface of the box body (1) below the second friction surface (13), and the lower end of the triangular arrow (36) is provided corresponding to the inclination scale line.

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