Slope stability test device and test method

Abstract

The invention discloses a slope stability test device and a test method, which relate to the technical field of slope testing, and include a test frame and a test adjustment device, wherein a shielding frame is slidably installed on the inner wall of the test frame, a displacement sensor is fixedly installed on the front side of the shielding frame, a slope model is arranged at the bottom of the inner wall of the test frame, and a placement plate is fixedly installed on the inner wall of the test frame, wherein the test adjustment device includes hydraulic equipment, an L-shaped frame, an adjustment rod, a pressing plate, an adjustment gear, a U-shaped rod, a limit frame and an elastic telescopic rod, the pressing plate moves to contact the slope model and performs a stability test on the slope model, and at the same time, the displacement sensor operates to detect and record the displacement of the slope model in real time, and the elastic telescopic rod is used to prevent accidental contact with external force, so as to ensure that the angle of the pressing plate remains stable during the test, thereby correctly reflecting the real stability of the slope model.

Description

Technical Field

[0001] The invention relates to the technical field of slope testing, in particular to a slope stability testing device and a testing method. Background Art

[0002] The slope stability test device usually consists of a test platform, angle adjustment equipment and slope specimens.

[0003] The patent with patent announcement number CN111103189B relates to a slope stability test device and test method. The slope stability test device includes a model box; a detachable plate for supporting the slope model is arranged in the model box; the slope stability test device also includes a loading component, and the loading component is used to load thrust to the slope model. This patent can verify and test the stability of the slope by loading thrust to the slope model through the loading device, thereby improving the efficiency of slope stability research.

[0004] In the above patent, by loading thrust onto the slope model through a loading device, the stability of the slope can be verified and tested, thereby improving the efficiency of slope stability research. However, it is difficult to adjust the test angle of the press plate. The inability to adjust the angle of the press plate will result in the inability to conduct effective experiments under different slopes, thereby affecting the accuracy and reliability of the test data. At the same time, it is difficult to prevent the angle of the press plate from being accidentally changed due to human error. If the angle of the press plate changes unexpectedly, the pressure applied to the slope model during the test will become uneven, resulting in inaccurate experimental results. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a slope stability test device and a test method, which solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above purpose, the present invention is implemented through the following technical solutions: a slope stability test device, including a test frame and a test adjustment device, wherein a shielding frame is slidably installed on the inner wall of the test frame, a displacement sensor is fixedly installed on the front side of the shielding frame, a slope model is arranged at the bottom of the inner wall of the test frame, and a placement plate is fixedly installed on the inner wall of the test frame, wherein the test adjustment device includes a hydraulic device, an L-shaped frame, an adjustment rod, a pressing plate, an adjustment gear, a U-shaped rod, a limit frame and an elastic telescopic rod, the pressing plate moves to contact the slope model and performs a stability test on the slope model, and the displacement sensor operates to detect and record the displacement of the slope model in real time, the hydraulic device is fixedly passed through the inner and outer walls of the test frame, the L-shaped frame is fixedly installed at the output end of the hydraulic device, the adjustment rod rotates and passes through the inner and outer walls of the L-shaped frame, the pressing plate is fixedly installed on the circumferential surface of the adjustment rod, the adjustment gear is fixedly installed on the circumferential surface of the adjustment rod, the U-shaped rod is fixedly installed on the circumferential surface of the output end of the hydraulic device, the limit frame is slidably installed on the circumferential surface of the U-shaped rod, and the elastic telescopic rod is fixedly installed on the front side of the L-shaped frame.

[0007] According to the above technical solution, the limit frame is in contact with the adjusting gear, a No. 1 spring is arranged between the hydraulic device and the limit frame, the No. 1 spring can drive the limit frame to reset, and the free end of the elastic telescopic rod is in contact with the limit frame.

[0008] According to the above technical solution, the rear side of the L-shaped frame is set as an inclined surface, a placement groove is opened at the bottom of the inner wall of the test frame, the limit frame is in contact with the L-shaped frame, and the adjustment rod rotates to drive the pressing plate to rotate for angle adjustment.

[0009] According to the above technical scheme, a pressing device for improving the stability of the slope model is provided on the surface of the placement plate, and a detection device is provided on the inner wall of the test frame. The pressing device includes a load-bearing hole, a load-bearing plate, a load-bearing rod, a hollow block, a U-shaped plate and an arc panel. The U-shaped plate moves to contact the top and bottom of the slope model, and the U-shaped plate contacts the top and bottom of the slope model and assists in fixing the slope model. The load-bearing hole is opened on the right side of the placement plate, and the load-bearing plate is fixedly installed on the inner wall of the load-bearing hole. The load-bearing rod slides through the left and right walls of the load-bearing plate, and the hollow block is fixedly installed at both ends of the load-bearing rod. The U-shaped plate is fixedly installed on the left side of the hollow block, and the arc panel is fixedly installed on the left side of the placement plate.

[0010] According to the above technical solution, the U-shaped plate contacts the inner wall of the placement groove, the U-shaped plate contacts the arc plate, and a No. 2 spring is arranged between the load-bearing plate and the hollow block, and the No. 2 spring can drive the hollow block to reset.

[0011] According to the above technical solution, a linkage plate is fixedly installed on the rear side of the hollow block, the front side of the hollow block is set as an inclined surface, and the hollow block is in contact with the inner wall of the load-bearing hole.

[0012] According to the above technical scheme, the detection device includes an L-shaped tube, a detection plate, a detection rod, a limit plate, a limit rod, a square plate and a limit groove. The square plate moves to contact the inner wall of the limit groove and limit the shielding frame. The L-shaped tube is fixedly passed through the inner and outer walls of the test frame. The detection plate is slidably installed on the inner wall of the L-shaped tube. The detection rod is fixedly installed on the front side of the detection plate. The limit plate is slidably installed on the inner wall of the L-shaped tube. The limit rod is fixedly installed on the left side of the limit plate. The square plate is fixedly installed on the left side of the limit rod. The limit groove is opened on the right side of the shielding frame.

[0013] According to the above technical solution, liquid is arranged inside the L-shaped tube, a No. 3 spring is arranged between the L-shaped tube and the limit plate, the No. 3 spring can drive the limit plate to reset, and the front side of the detection rod is arranged as an inclined surface.

[0014] A test method for a slope stability test device, using the above-mentioned slope stability test device, comprises the following steps:

[0015] Step 1: Manually pull the shielding frame upward to remove the shielding of the test frame. After the shielding of the test frame is removed, place the slope model into the test frame;

[0016] Step 2: After the slope model is placed stably, release the shielding frame so that it moves downward and resets under the action of its own gravity, and the shielding frame moves downward and resets to restore the shielding of the test frame;

[0017] Step 3: The operation of the hydraulic equipment drives the L-shaped frame to move toward the direction close to the slope model, and the movement of the L-shaped frame toward the direction close to the slope model drives the adjustment rod and the pressing plate to move;

[0018] Step 4: The pressing plate moves to contact the slope model and conducts a stability test on the slope model. At the same time, the displacement sensor operates to monitor and record the displacement of the slope model in real time.

[0019] The present invention provides a slope stability test device, which has the following beneficial effects:

[0020] (1) In the present invention, the free end of the elastic telescopic rod moves away from the U-shaped rod to break away from the contact with the limit frame and release the limit on the limit frame. Unexpected changes in the angle of the pressing plate will directly affect the test results, resulting in inaccurate or inconsistent experimental data. The elastic telescopic rod prevents accidental contact with external forces, ensuring that the angle of the pressing plate remains stable during the test, thereby correctly reflecting the true stability of the slope model. The adjusting rod is rotated to rotate the pressing plate, and the rotation of the adjusting rod drives the pressing plate to rotate for angle adjustment. By adjusting the angle of the pressing plate, stability tests under different slope conditions can be completed, thereby improving the efficiency of the experiment and the speed of data acquisition.

[0021] (2) The invention, by moving the U-shaped plate to contact the top and bottom of the slope model, the U-shaped plate contacts the top and bottom of the slope model and assists in fixing the slope model. By assisting in fixing the slope model at the top and bottom of the slope model, the slope state in the real environment can be effectively simulated, thereby ensuring the accuracy of the test results. The U-shaped plate is moved in a direction away from the slope model to reset and impact the arc panel to generate vibration. The arc panel vibration will shake off the residue adhered to the left side of the U-shaped plate. When the U-shaped plate contacts the slope model, there is residue adhered to the surface of the U-shaped plate, which will cause unevenness in the contact surface between the U-shaped plate and the slope model. By shaking off the residue, the fixing effect of the U-shaped plate is ensured.

[0022] (3) The invention drives the square plate to move by moving the limit rod. The square plate moves and contacts the inner wall of the limit groove and limits the shielding frame. Limiting the shielding frame ensures that the position of the shielding frame will not move during the test, thereby further enhancing the safety of the test area and avoiding the risk of leakage. If it is detected that the shielding frame cannot contact the bottom of the inner wall of the test frame due to obstruction by foreign objects, the hollow block will be unable to move, making it impossible for the L-shaped frame and the pressing plate to move to perform a stability test on the slope model. By ensuring that the shielding frame completely blocks the test frame before performing the stability test, splashes of objects can be avoided from splashing out of the test area, thereby reducing potential dangers. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the internal structure of the test frame of the present invention;

[0025] Figure 3 For the present invention Figure 2 A schematic diagram of the structure enlargement of part A;

[0026] Figure 4 It is a schematic diagram of the position structure of the hydraulic equipment and the L-shaped frame of the present invention;

[0027] Figure 5 For the present invention Figure 4 A schematic diagram of the structure of part B in the middle is enlarged;

[0028] Figure 6 This is a schematic diagram of the position structure of the shielding frame and the limiting groove of the present invention;

[0029] Figure 7 For the present invention Figure 6 The enlarged schematic diagram of the structure of part C in the middle;

[0030] Figure 8 It is a schematic diagram of the internal structure of the L-shaped tube of the present invention.

[0031] In the figure: 1. test frame; 2. shielding frame; 3. displacement sensor; 4. slope model; 5. placement plate; 51. placement slot; 6. hydraulic equipment; 7. L-shaped frame; 8. adjustment rod; 9. pressing plate; 10. adjustment gear; 11. U-shaped rod; 12. limit frame; 13. elastic telescopic rod; 141. load-bearing hole; 142. load-bearing plate; 143. load-bearing rod; 144. hollow block; 145. U-shaped plate; 146. arc panel; 147. linkage plate; 151. L-shaped tube; 152. detection plate; 153. detection rod; 154. limit plate; 155. limit rod; 156. square plate; 157. limit slot. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figure 1-Figure 8 One embodiment of the present invention is: a slope stability test device, including a test frame 1, and also including a test adjustment device, wherein a shielding frame 2 is slidably installed on the inner wall of the test frame 1, a displacement sensor 3 is fixedly installed on the front side of the shielding frame 2, a slope model 4 is arranged at the bottom of the inner wall of the test frame 1, and a placement plate 5 is fixedly installed on the inner wall of the test frame 1, wherein the test adjustment device includes a hydraulic device 6, an L-shaped frame 7, an adjustment rod 8, a pressing plate 9, an adjustment gear 10, a U-shaped rod 11, a limit frame 12 and an elastic telescopic rod 13, and the hydraulic device 6 is fixedly penetrated through the inner and outer walls of the test frame 1 The L-shaped frame 7 is fixedly installed on the output end of the hydraulic equipment 6, the adjusting rod 8 rotates and passes through the inner and outer walls of the L-shaped frame 7, the pressing plate 9 is fixedly installed on the circumferential surface of the adjusting rod 8, the adjusting gear 10 is fixedly installed on the circumferential surface of the adjusting rod 8, the U-shaped rod 11 is fixedly installed on the circumferential surface of the output end of the hydraulic equipment 6, the limit frame 12 is slidably installed on the circumferential surface of the U-shaped rod 11, and the elastic telescopic rod 13 is fixedly installed on the front side of the L-shaped frame 7. The elastic telescopic rod 13 prevents accidental touch by external force, which can ensure that the angle of the pressing plate 9 remains stable during the test, thereby correctly reflecting the real stability of the slope model 4.

[0034] The limit frame 12 is in contact with the adjusting gear 10, and a No. 1 spring is arranged between the hydraulic device 6 and the limit frame 12. The No. 1 spring can drive the limit frame 12 to reset, and the free end of the elastic telescopic rod 13 is in contact with the limit frame 12. By adjusting the angle of the pressing plate 9, the stability test under different slope conditions can be completed, thereby improving the efficiency of the experiment and the speed of data acquisition.

[0035] The rear side of the L-shaped frame 7 is set as an inclined surface, and a placement groove 51 is opened at the bottom of the inner wall of the test frame 1. The limit frame 12 contacts the L-shaped frame 7. The adjustment rod 8 rotates to drive the pressing plate 9 to rotate for angle adjustment.

[0036] A test method for a slope stability test device, using the above-mentioned slope stability test device, comprises the following steps:

[0037] Step 1: manually pull the shielding frame 2 upward to remove the shielding of the test frame 1, and after the shielding of the test frame 1 is removed, place the slope model 4 into the test frame 1;

[0038] Step 2: After the slope model 4 is placed stably, the shielding frame 2 is released to allow it to move downward and reset under the action of its own gravity, and the shielding frame 2 moves downward and resets to resume shielding the test frame 1;

[0039] Step 3: The hydraulic device 6 operates to drive the L-shaped frame 7 to move toward the slope model 4, and the L-shaped frame 7 moves toward the slope model 4 to drive the adjustment rod 8 and the pressing plate 9 to move;

[0040] Step 4: The pressing plate 9 moves to contact the slope model 4 and performs a stability test on the slope model 4 . Meanwhile, the displacement sensor 3 operates to detect and record the displacement of the slope model 4 in real time.

[0041] When the present embodiment is working, the shielding frame 2 is manually pulled upward to release the shielding of the test frame 1. After the shielding of the test frame 1 is released, the slope model 4 is placed inside the test frame 1. After the slope model 4 is placed stably, the shielding frame 2 is released to allow it to move downward and reset under the action of its own gravity. The shielding frame 2 moves downward and resets to restore the shielding of the test frame 1. When testing the slope models 4 with different inclination angles, the free end of the elastic telescopic rod 13 is first manually pushed to move in a direction away from the U-shaped rod 11. The free end of the elastic telescopic rod 13 moves in a direction away from the U-shaped rod 11 to break away from the contact with the limit frame 12 and release the limit on the limit frame 12. After the limit of the limit frame 12 is released, the limit frame 12 is manually pulled upward to pull the No. 1 spring. The No. 1 spring is deformed and accumulates force due to the pull of the limit frame 12. At the same time, the limit frame 12 moves upward to disengage from the contact with the adjusting gear 10 and release the limit on the adjusting gear 10. After the limit of the adjusting gear 10 is released, the adjusting rod 8 is turned to rotate. The rotation of the adjusting rod 8 drives the pressing plate 9 to rotate for angle adjustment. When the pressing plate 9 rotates to an appropriate angle, the limit frame 12 is released so that the limit frame 12 moves downward under the elastic force of the No. 1 spring. The limit frame 12 moves downward to contact the adjusting gear 10 and restores the limit on the adjusting gear 10. After the limit of the adjusting gear 10 is restored, the hydraulic equipment 6 drives the L-shaped frame 7 to move in the direction close to the slope model 4. The L-shaped frame 7 moves in the direction close to the slope model 4, drives the adjusting rod 8 and the pressing plate 9 to move, and the pressing plate 9 moves to contact the slope model 4 and performs a stability test on the slope model 4. At the same time, the displacement sensor 3 operates to detect and record the displacement of the slope model 4 in real time.

[0042] See also Figure 1-Figure 8 On the basis of the above embodiments, in another embodiment of the present invention, a pressing device for improving the stability of the slope model 4 is provided on the surface of the placement plate 5, and a detection device is provided on the inner wall of the test frame 1. The pressing device includes a load-bearing hole 141, a load-bearing plate 142, a load-bearing rod 143, a hollow block 144, a U-shaped plate 145 and a curved panel 146. The load-bearing hole 141 is opened on the right side of the placement plate 5, the load-bearing plate 142 is fixedly installed on the inner wall of the load-bearing hole 141, the load-bearing rod 143 slides through the left and right walls of the load-bearing plate 142, the hollow block 144 is fixedly installed at both ends of the load-bearing rod 143, the U-shaped plate 145 is fixedly installed on the left side of the hollow block 144, and the curved panel 146 is fixedly installed on the left side of the placement plate 5. The U-shaped plate 145 is used for auxiliary fixing at the top and bottom of the slope model 4, which can effectively simulate the slope state in the real environment, thereby ensuring the accuracy of the test results.

[0043] The U-shaped plate 145 contacts the inner wall of the placement groove 51, and the U-shaped plate 145 contacts the arc plate 146. A No. 2 spring is arranged between the load-bearing plate 142 and the hollow block 144. The No. 2 spring can drive the hollow block 144 to reset, and the residue can be shaken off, thereby ensuring the fixing effect of the U-shaped plate 145.

[0044] A linkage plate 147 is fixedly installed on the rear side of the hollow block 144, and the front side of the hollow block 144 is set as an inclined surface. The hollow block 144 contacts the inner wall of the load-bearing hole 141, and the arc panel 146 vibrates to shake off the residue adhered to the left side of the U-shaped plate 145.

[0045] The detection device includes an L-shaped tube 151, a detection plate 152, a detection rod 153, a limit plate 154, a limit rod 155, a square plate 156 and a limit groove 157. The L-shaped tube 151 is fixedly passed through the inner and outer walls of the test frame 1, the detection plate 152 is slidably installed on the inner wall of the L-shaped tube 151, the detection rod 153 is fixedly installed on the front side of the detection plate 152, the limit plate 154 is slidably installed on the inner wall of the L-shaped tube 151, the limit rod 155 is fixedly installed on the left side of the limit plate 154, the square plate 156 is fixedly installed on the left side of the limit rod 155, and the limit groove 157 is opened on the right side of the shielding frame 2. Limiting the shielding frame 2 ensures that the position of the shielding frame 2 will not move during the test, thereby further enhancing the safety of the experimental area.

[0046] Liquid is arranged inside the L-shaped tube 151, and a No. 3 spring is arranged between the L-shaped tube 151 and the limit plate 154. The No. 3 spring can drive the limit plate 154 to reset. The front side of the detection rod 153 is arranged as an inclined plane. By ensuring that the shielding frame 2 completely shields the test frame 1 before the stability test can be carried out, splashes can be avoided from splashing out of the test area, thereby reducing potential dangers.

[0047] When the present embodiment is working, the L-shaped frame 7 moves toward the direction close to the slope model 4, contacts the inclined surface of the hollow block 144 and squeezes the hollow block 144. The hollow block 144 moves toward the direction close to the slope model 4 under the squeezing of the L-shaped frame 7. The hollow block 144 moves toward the direction close to the slope model 4 to squeeze the No. 2 spring. The No. 2 spring is squeezed by the hollow block 144 to deform and accumulate force. At the same time, the hollow block 144 moves toward the direction close to the slope model 4, driving the U-shaped plate 145 to move. The U-shaped plate 145 moves and contacts the top and bottom of the slope model 4. The U-shaped plate 145 contacts the top and bottom of the slope model 4 and squeezes the second spring. The slope model 4 is auxiliary fixed. When the hydraulic equipment 6 drives the L-shaped frame 7 to move and reset in the direction away from the slope model 4, the L-shaped frame 7 moves and resets to break away from the contact with the hollow block 144. The hollow block 144 breaks away from the contact with the L-shaped frame 7, so that the hollow block 144 moves away from the slope model 4 under the elastic force of the second spring. The hollow block 144 moves and resets in the direction away from the slope model 4, driving the U-shaped plate 145 to move. The U-shaped plate 145 moves and resets in the direction away from the slope model 4 and hits the arc panel 146 to generate vibration. The arc panel 146 vibrates to shake off the residue adhering to the left side of the U-shaped plate 145.

[0048] The hollow block 144 moves toward the direction close to the slope model 4, driving the linkage plate 147 to move. The linkage plate 147 moves toward the direction close to the slope model 4, contacts the inclined surface of the detection rod 153 and squeezes the detection rod 153. The detection rod 153 is squeezed by the linkage plate 147 and moves in the direction away from the load-bearing rod 143. The detection rod 153 moves in the direction away from the load-bearing rod 143 and drives the detection plate 152 to move. The movement of the detection plate 152 squeezes the liquid inside the L-shaped tube 151. The liquid inside the L-shaped tube 151 is squeezed by the detection plate 152 and moves in the direction close to the shielding frame 2. The liquid inside the L-shaped tube 151 moves in the direction close to the shielding frame 2 and squeezes the limit plate 154. The limit plate 154 is squeezed by the liquid inside the L-shaped tube 151 and moves in the direction close to the shielding frame 2. The limit plate 154 moves in the direction close to the shielding frame 2 to squeeze the No. 3 spring. The No. 3 spring is squeezed by the limit plate 154 The extrusion produces deformation and accumulates force. At the same time, the limit plate 154 moves in the direction close to the shielding frame 2, driving the limit rod 155 to move. The movement of the limit rod 155 drives the square plate 156 to move. The square plate 156 moves to contact the inner wall of the limit groove 157 and limit the shielding frame 2. If the shielding frame 2 cannot contact the bottom of the inner wall of the test frame 1 due to foreign matter, the shielding frame 2 cannot contact the bottom of the inner wall of the test frame 1, so that the limit groove 157 cannot be aligned with the square plate 156, the limit groove 157 cannot be aligned with the square plate 156, so that the square plate 156 cannot move and contact the inner wall of the limit groove 157, the square plate 156 cannot move and contact the inner wall of the limit groove 157, the detection plate 152 and the detection rod 153 cannot continue to move, the detection rod 153 cannot continue to move, the linkage plate 147 and the hollow block 144 cannot move, the hollow block 144 cannot move, the L-shaped frame 7 and the pressing plate 9 cannot move to perform a stability test on the slope model 4.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A slope stability test device, comprising a test frame (1), characterized in that: Also includes a test adjustment device; The inner wall of the test frame (1) is slidably mounted with a shielding frame (2), a displacement sensor (3) is fixedly mounted on the front side of the shielding frame (2), a slope model (4) is arranged at the bottom of the inner wall of the test frame (1), and a placement plate (5) is fixedly mounted on the inner wall of the test frame (1); The test adjustment device comprises a hydraulic device (6), an L-shaped frame (7), an adjustment rod (8), a pressing plate (9), an adjustment gear (10), a U-shaped rod (11), a limit frame (12) and an elastic telescopic rod (13), wherein the hydraulic device (6) is fixedly mounted on the inner and outer walls of the test frame (1), the L-shaped frame (7) is fixedly mounted on the output end of the hydraulic device (6), the adjustment rod (8) is rotatably mounted on the inner and outer walls of the L-shaped frame (7), the pressing plate (9) is fixedly mounted on the circumferential surface of the adjustment rod (8), the adjustment gear (10) is fixedly mounted on the circumferential surface of the adjustment rod (8), the U-shaped rod (11) is fixedly mounted on the circumferential surface of the output end of the hydraulic device (6), the limit frame (12) is slidably mounted on the circumferential surface of the U-shaped rod (11), and the elastic telescopic rod (13) is fixedly mounted on the front side of the L-shaped frame (7); Wherein, a pressing device for improving the stability of the slope model (4) is arranged on the surface of the placement plate (5), and a detection device is arranged on the inner wall of the test frame (1); The limit frame (12) is in contact with the adjustment gear (10), a No. 1 spring is provided between the hydraulic device (6) and the limit frame (12), and the free end of the elastic telescopic rod (13) is in contact with the limit frame (12).

2. A slope stability test device according to claim 1, characterized in that: The rear side of the L-shaped frame (7) is arranged as an inclined surface, a placement groove (51) is provided at the bottom of the inner wall of the test frame (1), and the limiting frame (12) is in contact with the L-shaped frame (7).

3. A slope stability test device according to claim 2, characterized in that: The pressing device comprises a load-bearing hole (141), a load-bearing plate (142), a load-bearing rod (143), a hollow block (144), a U-shaped plate (145) and a curved plate (146); the load-bearing hole (141) is opened on the right side of the placement plate (5); the load-bearing plate (142) is fixedly mounted on the inner wall of the load-bearing hole (141); the load-bearing rod (143) slides through the left and right walls of the load-bearing plate (142); the hollow block (144) is fixedly mounted on both ends of the load-bearing rod (143); the U-shaped plate (145) is fixedly mounted on the left side of the hollow block (144); and the curved plate (146) is fixedly mounted on the left side of the placement plate (5).

4. A slope stability test device according to claim 3, characterized in that: The U-shaped plate (145) contacts the inner wall of the placement groove (51), the U-shaped plate (145) contacts the curved plate (146), and a No. 2 spring is provided between the load-bearing plate (142) and the hollow block (144).

5. A slope stability test device according to claim 4, characterized in that: A linkage plate (147) is fixedly mounted on the rear side of the hollow block (144); the front side of the hollow block (144) is arranged as an inclined surface; and the hollow block (144) is in contact with the inner wall of the load-bearing hole (141).

6. A slope stability test device according to claim 5, characterized in that: The detection device comprises an L-shaped tube (151), a detection plate (152), a detection rod (153), a limit plate (154), a limit rod (155), a square plate (156) and a limit groove (157); the L-shaped tube (151) is fixedly installed through the inner and outer walls of the test frame (1); the detection plate (152) is slidably mounted on the inner wall of the L-shaped tube (151); the detection rod (153) is fixedly installed on the front side of the detection plate (152); the limit plate (154) is slidably mounted on the inner wall of the L-shaped tube (151); the limit rod (155) is fixedly installed on the left side of the limit plate (154); the square plate (156) is fixedly installed on the left side of the limit rod (155); and the limit groove (157) is opened on the right side of the shielding frame (2).

7. A slope stability test device according to claim 6, characterized in that: Liquid is arranged inside the L-shaped tube (151), a No. 3 spring is arranged between the L-shaped tube (151) and the limiting plate (154), and the front side of the detection rod (153) is arranged as an inclined surface.

8. A test method for a slope stability test device, using the slope stability test device according to claim 7, characterized in that: The following steps are involved: Step 1: manually pull the shielding frame (2) upward to remove the shielding of the test frame (1); after the shielding of the test frame (1) is removed, place the slope model (4) into the test frame (1); Step 2: After the slope model (4) is placed stably, the shielding frame (2) is released to allow it to move downward and reset under the action of its own gravity. The shielding frame (2) moves downward and resets to resume shielding the test frame (1); Step 3: The hydraulic device (6) operates to drive the L-shaped frame (7) to move toward the direction close to the slope model (4), and the L-shaped frame (7) moves toward the direction close to the slope model (4), thereby driving the adjustment rod (8) and the pressing plate (9) to move; Step 4: The pressing plate (9) moves to contact the slope model (4) and performs a stability test on the slope model (4), while the displacement sensor (3) operates to monitor and record the displacement of the slope model (4) in real time.

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