Simulation test device and method for movement and accumulation characteristics of barrier body

Abstract

The invention discloses a simulation test device and method for movement and accumulation characteristics of a weir plug body, the device comprises a chute I and a chute II, the chute I is obliquely arranged, the chute II is horizontally arranged, and the rotation angles of the chute I and the chute II are adjustable; rock and soil materials slide into the second sliding groove from the first sliding groove and slide and accumulate in the second sliding groove. The test device can simulate the movement and accumulation process of full-lateral confinement debris flow and rock collapse clastic flow, and not only can simulate a valley straight type landslide, but also can simulate a valley deflection type landslide; by changing the vertical inclination angle of the sliding chute I and the horizontal angle of the sliding chute II, the landslide accumulation condition under complex valley terrains with different gradients and slope toe deflection angles can be simulated. By means of the method, the movement and accumulation characteristics of debris flow and rock collapse clastic flow under the complex valley terrain can be truly restored, meanwhile, the movement process of different friction bottom beds can be simulated, an impacted object can be placed in a horizontal groove, and therefore protection measures and harm of landslide under the complex valley terrain can be studied.

Description

Technical Field

[0001] The invention belongs to the technical field of dam body simulation test, and in particular relates to a simulation test device and method for dam body movement and accumulation characteristics. Background Art

[0002] The dam is a complex natural geological body formed by the instability, sliding or collapse, accumulation and resting of the soil-rock mixture of the bank slope in the river channel under sudden extreme natural conditions such as earthquakes and heavy rainfall. The cause of the dam determines that its material composition and structure are different from those of general geological bodies formed by artificial dams and long-term evolution. The geometric shape of the dam is extremely irregular, the material composition is extremely uneven, the structure and gradation are extremely poor, and the risk of collapse is extremely high.

[0003] The formation process of dam bodies of different causes is quite different. The formation process of dam bodies mainly includes the movement process of rock and soil bodies and the test of accumulation morphology. The relevant physical test research mainly focuses on the movement process and accumulation characteristics of debris flows and rock collapse debris flows. For example, existing document 1: the application number is 202010068991.2, and the invention name is a Chinese patent for a simulation test platform for a high-level landslide debris flow anti-impact barrier structure. By tilting the hydraulic lifting platform to change the inclination angle of one of the first-level chutes, the movement of debris flows under various angles is simulated. For example, existing document 2: the application number is 202110678345.2, and the invention name is a device and test method for simulating the collapse and landslide process of a rock block system. By controlling the inclination angle of the inclined plane to change the block speed, the accumulation of the collapse body in the accumulation trough is studied. The simulation test devices in the above two documents cannot simulate the valley accumulation type of landslide. Summary of the invention

[0004] Aiming at the fact that existing devices cannot simulate valley accumulation landslides and cannot study the movement and accumulation characteristics of debris flows and rockfall debris flows in complex valley terrain, the present invention proposes a simulation test device and method for simulating the movement and accumulation characteristics of dam bodies.

[0005] The technical solution adopted by the present invention is:

[0006] A simulation test device for the movement and accumulation characteristics of a dam body, comprising: a chute 1 and a chute 2, wherein one end of the chute 1 is hinged to a hinged bracket, and the other end of the chute 1 is connected to a lifting device, and the lifting device lifts one end of the chute 1 to make the chute 1 tilted;

[0007] One end of the second slide is arranged at an end close to the first slide through a rotating bracket, and the end of the first slide is connected to the hinge bracket. The bottom of the other end of the second slide is connected to a supporting roller. The rotating bracket and the supporting roller make the second slide horizontally arranged, and the second slide can rotate horizontally relative to the first slide.

[0008] A connecting bottom plate and a side plate are arranged between the chute one and the chute two; a material bin is arranged in the chute one, and the material in the material bin slides down from the chute one, enters the chute two through the connecting bottom plate, and is accumulated in the chute two.

[0009] The present invention uses a horizontally arranged chute 2 to allow the rock and soil materials sliding down from the inclined chute 1 to continue to slide and accumulate in the chute 2, which can simulate the process of the soil-rock mixture on the bank slope continuing to slide and accumulate in the river channel after instability, sliding or collapse. However, in the existing literature, the landslide body directly accumulates in the accumulation trough after sliding down the inclined plate, and does not simulate the process of the landslide body sliding a distance and then accumulating after entering the accumulation trough. The present invention sets the chute 2 to have an adjustable horizontal rotation angle, so that the device can not only simulate the straight valley landslide, but also simulate the valley deflection landslide; by changing the vertical inclination angle of the chute 1 and the horizontal angle of the chute 2, the landslide accumulation in the complex valley terrain with slope and slope foot deflection angle can be simulated.

[0010] Furthermore, the end faces of the first chute and the second chute are both inverted trapezoidal shapes, which are as close to the cross-sectional shape of an actual valley as possible, simulating the movement and accumulation process of fully confined debris flow and rockfall debris flow.

[0011] Furthermore, the side walls of chute 1 and chute 2 are both made of transparent organic glass, and high-speed cameras are installed on the top and sides of chute 1 and chute 2. The side walls are designed to be transparent organic glass, which can directly monitor the sliding and accumulation process of the dam body. At the same time, the whole process of sliding and accumulation can be photographed from the side and front by high-speed cameras, and subsequent image processing can also be used to achieve the purpose of quantitative analysis of particle movement morphology.

[0012] Furthermore, the side walls of the first and second chutes are both made of two layers of transparent organic glass, the outer layer is thicker than the inner layer, and the inner and outer layers are fixed with bolts. Because the inner wall of the chute is easily scratched by rock and soil materials, it is designed to be a detachable two-layer structure to facilitate the replacement of the inner layer of organic glass on the side wall of the chute.

[0013] Furthermore, a clamping groove is arranged near the supporting roller in the second slide groove, and a baffle is arranged on the sliding card in the clamping groove. The baffle is used to prevent the rock and soil material sliding in the second slide groove from sliding out.

[0014] Specifically, there are two articulated brackets, which are respectively arranged on both sides of the slide slot 1; the connection structure between the two sides of the slide slot 1 and the articulated bracket is the same, and one side of the slide slot 1 is used for description;

[0015] The bottom wall of the slide groove is fixedly connected to the bottom support one, the side wall of the slide groove is fixedly connected to the side support, the bottom support one is fixedly connected to the side support, the side support is fixedly connected to a rotating connecting frame, and the rotating connecting frame is correspondingly arranged with the articulated bracket; the articulated bracket and the rotating connecting frame on the same side are jointly provided with an articulated shaft, the rotating connecting frame is connected to the articulated shaft through a bearing, the rotating connecting frame, the side support and the bottom support one are jointly connected to the base to form a whole with the slide groove one.

[0016] The top of the slide is pulled by the lifting device, so that the bottom end of the slide is rotated around the hinge bracket to achieve adjustable tilt angle.

[0017] Specifically, the rotating bracket includes a bearing base, a bearing and a support plate. The bearing is supported on the bearing base, the rotating shaft of the bearing is vertically arranged, and the support plate is arranged on the bearing; the bottom wall of the second slide groove is fixedly connected with the bottom support 2, and the bottom end of the bottom support 2 is fixedly connected to the support plate, so that the support plate, the bottom support 2 and the second slide groove form a whole and can rotate through the bearing.

[0018] When the horizontal angle of the second slideway needs to be adjusted, the end of the second slideway on which the support roller is installed is manually pushed to make the end rotate around the rotating bracket to achieve adjustable horizontal angle.

[0019] Preferably, the connecting bottom plate is overlapped between the first slide groove and the second slide groove, one end of the connecting bottom plate is abutted against the first slide groove, and the other end of the connecting bottom plate is overlapped on the bottom support second of the second slide groove, and this end is an arc structure.

[0020] Specifically, the side panels on both sides between the first chute and the second chute have the same structure. Taking one side as an example, the side panel includes:

[0021] Side panel 1, side panel 2, hinge baffle and hinge pillar, the hinge pillar is fixedly connected to the upper surface of the connecting bottom plate, the hinge baffle is fixedly connected to the hinge pillar, the hinge of the hinge baffle is vertically arranged, and a strip hole 1 is opened at one end of the hinge baffle close to the second slide groove;

[0022] One end of the side plate 1 close to the slide groove 2 is fixedly connected to the slide groove 2, and the other end of the side plate 1 is provided with a strip hole 2, the position and size of the strip hole 2 are adapted to the strip hole 1 of the hinge baffle, and the side plate 1 is connected to the hinge baffle by inserting a connecting piece through the two strip holes, and the side plate 1 and the hinge baffle are slidably connected;

[0023] One end of the side plate 2 is fixedly connected to the hinge baffle, and the other end is a free end located outside the chute 1. The material slides down from the chute 1 and passes through the side plate 2, the hinge baffle, and the side plate 1 in sequence into the chute 2.

[0024] Because side panel 1 and the connecting bottom plate are not fixedly connected to slide slot 1, slide slot 1 is not restricted by the two when it rotates vertically, and side panel 2 is always in a state of holding slide slot 1; because side panel 1 is slidably connected to the hinge baffle, and side panel 2 and side panel 1 are connected by the hinge baffle, the end of side panel 1 and the hinge baffle close to slide slot 2 cannot be fixedly connected to the connecting bottom plate, so slide slot 2 is not restricted by the side panel when it rotates horizontally.

[0025] A test method for simulating the movement and accumulation characteristics of a dam body comprises the following steps:

[0026] Step 1: Lay the chute flat, close the material bin baffle, select the required graded rock and soil materials according to the test requirements, and put them into the material bin;

[0027] Step 2: According to the test requirements, lift the chute 1 to a specific angle with a lifting device, adjust the angle of the chute 2 to a specific angle, and then fix the roller;

[0028] Step 3: Adjust the height and angle of the high-speed camera to ensure that the front and side shots are clear and recorded completely;

[0029] Step 4: Turn on the air pump and extract the gas in the cylinder, so that the material bin baffle opens quickly, and the rock and soil materials slide freely down along the chute;

[0030] Step 5: Record the pictures of the rock and soil material sliding down in the chute 1 under the condition, the pictures of the sliding and accumulation process in the chute 1, and the pictures of the final accumulation position and accumulation form;

[0031] Step 6: Pull out the rear baffle of chute 2, clean the rock and soil in chute 2, and repeat the above steps to carry out the next set of tests.

[0032] After performing the above tests for several times, the inner layer of organic glass of the chute side wall can be replaced before starting the next test.

[0033] Beneficial effects of the present invention:

[0034] The test device of the present invention can simulate the process in which the soil-rock mixture of the bank slope loses stability, slides or collapses, continues to slide and then accumulates in the river channel. The device can simulate the movement and accumulation process of fully confined debris flow and rock collapse debris flow. It can not only simulate the straight landslide in the valley, but also simulate the deflection landslide in the valley. By changing the vertical inclination angle of the chute one and the horizontal angle of the chute two, the landslide accumulation in the complex valley terrain with different slopes and slope foot deflection angles can be simulated.

[0035] Each module of the device of the present invention is designed independently, which is convenient for subsequent replacement of worn parts and upgrading and transformation.

[0036] The method described in the present invention can more realistically restore the movement and accumulation characteristics of debris flows and rockfall debris flows in complex valley terrain, and can also simulate the movement process of different frictional beds, and place impact objects in the second chute to study the protection measures and hazards of landslides in complex valley terrain. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 is a side view of the device of the present invention;

[0038] Figure 2 A top view of the device of the present invention;

[0039] Figure 3 It is a schematic diagram of the connection structure between the slideway 1 and the articulated bracket;

[0040] Figure 4 It is a schematic diagram of the connection structure between the second slideway and the rotating bracket;

[0041] Figure 5 It shows the structure where the connecting base plate is installed between two slideways;

[0042] Figure 6 The structure of the side plate mounted between the two chutes is shown;

[0043] Figure 7 The connection structure between the cylinder and the material bin baffle is shown;

[0044] Figure 8 The structure of the picket is shown;

[0045] The reference numerals in the figure are as follows: 1-material bin, 2-chute one, 3-chute two, 4-cylinder, 5-material bin baffle, 6-hinge bracket, 7-rotating bracket, 8-baffle, 9-support roller, 10-lifting device, 11-bottom support one, 12-side support, 13-base, 14-rotating connecting frame, 16-hinge shaft, 17-bearing base, 18-bearing, 19-bottom support two, 20-support plate, 21-support base, 22-connecting bottom plate, 23-side panel one, 24-side panel two, 25-hinge baffle, 26-hinge pillar, 27-strip hole one, 28-rubber membrane, 29-high-speed camera. DETAILED DESCRIPTION

[0046] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the protection scope of the present invention.

[0047] like Figure 1 , 2As shown, a simulation test device for the movement and accumulation characteristics of a dam body comprises: a chute 1 2 and a chute 2 3, wherein one end of the chute 2 for discharging materials is hinged to a hinged bracket 6, and one end of the chute 2 for feeding materials is connected to a lifting device 10, and the lifting device 10 lifts this end of the chute 2 to make the chute 2 tilted; one end of the chute 2 3 for feeding materials is set at the discharge end of the chute 1 through a rotating bracket 7, and a supporting roller 9 is connected to the bottom of the other end of the chute 2 3, and the rotating bracket and the supporting roller make the chute 2 horizontally set, and the chute 2 can rotate horizontally relative to the chute 1; a material bin 1 is set in the chute 2 for containing rock and soil materials, and the rock and soil materials slide into the chute 2 through the chute 1 and slide and accumulate in the chute 2.

[0048] like Figure 3 As shown, the hinged structure between the hinged bracket 6 and the discharge end of the chute 1 2 is:

[0049] The bottom wall of the slideway 1 is fixedly connected with the bottom support 11, and the two side walls of the slideway 1 are fixedly connected with the side support 12. The bottom support 11 is fixedly connected with the side support 12, and the side support 12 is fixedly connected with the rotating connecting frame 14. There are two articulated brackets 6, which are respectively arranged on both sides of the slideway 12 corresponding to a rotating bracket. The articulated bracket and the rotating bracket on the same side are jointly provided with an articulated shaft 16. The rotating bracket is connected to the articulated shaft through a bearing. The rotating bracket, the side support 12, and the bottom support 11 are jointly connected to the base 13, forming a whole with the slideway 12. This whole structure can rotate relative to the articulated bracket through the bearing and the articulated shaft. The articulated bracket 6 is fixed on the ground or the support base 21.

[0050] like Figure 4 As shown, the connection structure between the feed end of the chute 2 3 and the rotating bracket is:

[0051] The rotating bracket 7 includes a bearing base 17, a bearing 18 and a support plate 20. The bearing base 17 is fixed on the ground or a support base 21. The bearing is supported on the bearing base, and the rotating shaft of the bearing is arranged vertically. The support plate 20 is a disc structure as a whole, and a sleeve is provided on the lower bottom surface. The outer diameter of the sleeve is equal to or slightly smaller than the inner diameter of the bearing. The sleeve is sleeved in the center hole of the bearing. The bearing can be selected as a plane bearing, so that the support plate 20 is seated on the bearing as a whole. Under the action of external force, the support plate 20 can rotate relative to the bearing base because of the bearing. The bottom wall of the second slideway is fixedly connected with the bottom support 21, and the bottom support 2 is arranged vertically, and the bottom end of the bottom support 2 is fixedly connected with the support plate 20, so that the support plate 20, the bottom support 219 and the second slideway form a whole and can rotate through the bearing.

[0052] like Figure 5As shown, a connecting bottom plate 22 is overlapped between the chute 1 and the chute 2, one end of the connecting bottom plate is in contact with the chute 1, and the other end of the connecting bottom plate is overlapped on the bottom support 2 19 of the chute 2, and this end is an arc structure. The width of the connecting bottom plate is larger than the width of the chute bottom plate. The connecting bottom plate can be designed to be longer. When the chute 1 rotates, one end of the connecting bottom plate is manually operated to always abut against the chute 1; when the chute 2 rotates, because this end is an arc structure and the rotation angle is relatively small, it does not interfere with the chute 2, and does not interfere with the side panels on both sides above the connecting bottom plate.

[0053] like Figure 6 As shown, the side panels on both sides between the chute 1 2 and the chute 2 3 have the same structure. Taking one side as an example, the side panel includes:

[0054] The side panel 1 23, the side panel 2 24, the hinge baffle 25 and the hinge pillar 26, the hinge pillar 26 is fixedly connected to the upper surface of the connecting bottom plate 22, the hinge baffle 25 is fixedly connected to the hinge pillar 26, the hinge of the hinge baffle 25 is vertically arranged, and the end of the hinge baffle 25 close to the second slide groove is provided with a strip hole 1 27. The end of the side panel 1 23 close to the second slide groove 3 is fixedly connected to the second slide groove, and the other end of the side panel 1 23 is provided with a strip hole 2, the position and size of the strip hole 2 are adapted to the strip hole 27 of the hinge baffle 25, and the side panel 1 23 and the hinge baffle 25 are connected together by inserting connecting pins and other connecting parts in the two strip holes, and the side panel 1 23 and the hinge baffle 25 can slide. The bottom ends of the side panel 1 23 and the hinge baffle are not fixed to the connecting bottom plate 22. One end of the side panel 24 is fixedly connected to the hinge baffle, and the other end is a free end, which is located outside the chute 1. The side panel 24 can be designed to be longer, and the whole has the effect of holding the chute 1. The rock and soil material slides down the chute 1 and passes through the side panel 24, the hinge baffle 25, and the side panel 1 23 in sequence to enter the chute 2.

[0055] The side panels are located above the connecting bottom plate, and the bottom ends of the side panels 1 23, the side panels 24, and the hinge baffle 25 are not fixed to the connecting bottom plate. When the slideway 2 rotates, the side panels 1 23 and the hinge baffle deflect above the connecting bottom plate, and the connecting bottom plate does not interfere with the side panels on both sides. It is necessary to ensure that the gaps between the side panels 1 23, the side panels 24, the hinge baffle 25 and the connecting bottom plate are as small as possible to prevent the rock and soil materials from leaking out of the gaps. A rubber film is provided on the lower surface of the connecting bottom plate, that is, between the connecting bottom plate and the bottom support 2, for sealing.

[0056] In order to reduce the friction between the side plate 23 and the hinge baffle 25, a rubber film 28 can be arranged between the two.

[0057] The hinge baffle 25 can be made of steel, and the side panel 1 23 and the side panel 24 can be made of transparent resin glass.

[0058] like Figure 3As shown, the end faces of the chute 1 2 and the chute 2 3 are both inverted trapezoidal, simulating the shape of an actual valley.

[0059] like Figure 7 As shown, the structure of the material bin 1 is as follows: it includes a material bin baffle 5, which is an inverted trapezoidal plate. The material bin baffle 5 is rotatably connected to the chute 1 through a hinge shaft. A part of the material bin baffle is located in the chute 1, and the material bin baffle and the inner wall of the chute 1 are enclosed to form the material bin 1. The top side wall of the chute 1 is connected to a cylinder 4 through a hinge seat. The non-telescopic end of the cylinder is hinged in the hinge seat. The telescopic end of the cylinder is hinged to the material bin baffle. The cylinder 4 is connected to the air pump through a capillary tube. The air pump is used to evacuate and inflate the material bin baffle 5, so that the material bin baffle 5 can be quickly opened and closed around the hinge shaft. When the material bin baffle 5 is located in the chute 1 and abuts against the inner wall of the chute 1, the material in the material bin will not leak out from the connection. At this time, the material bin baffle is in the closed state. When the cylinder pulls the material bin baffle to rotate and the material bin baffle does not contact the inner wall of the chute 1, the material in the material bin will slide out from the opening. At this time, the material bin baffle is in the open state.

[0060] like Figure 1 As shown, the side wall of the slide 2 is transparent organic glass, the inclination angle of the slide 2 is adjustable, and the rotation angle can be designed to be 0-60 degrees; Figure 2 As shown, the side wall of the second chute 3 is also transparent organic glass. The side walls of the two chutes can be selected to be two layers, the outer layer is thicker than the inner layer, and fixed with bolts. Because the inner wall of the chute is easily scratched by rock and soil materials, it is designed to be a detachable two-layer structure to facilitate the replacement of the inner organic glass of the chute side wall. A card slot is provided at the tail of the second chute, and a baffle 8 is inserted into the card slot. The baffle is used to limit the material sliding in the second chute. Through the support roller 9 and the rotating bracket 7, the second chute can rotate horizontally, and the rotation angle can be designed to be 0-45 degrees. The device composed of the first chute and the second chute can be used to simulate the valley accumulation type landslide type.

[0061] like Figure 1 , 2 As shown, high-speed cameras 29 can be set on the front and side of the chute 1 2 and the chute 3 2 to shoot the movement process of the rock and soil materials.

[0062] The bottom plates of chute 1 and chute 2 can be made of steel with blue paint on the surface. The bottom plates of the chute can also be paved with friction pads of different materials to simulate the movement and accumulation characteristics of rockfall debris flow on different friction beds. Trapezoidal blocks of different sizes can also be added, such as Figure 8 As shown in the figure, it is used to simulate the movement characteristics under the condition of picking up the ridge. Impact objects can also be placed in the second chute to study the landslide protection measures and hazards in complex valley terrain.

[0063] A test method for simulating the movement and accumulation characteristics of a dam body comprises the following steps:

[0064] Step 1: Lay the chute 2 flat, close the material bin baffle 5, and select the required graded rock and soil materials according to the test requirements and put them into the material bin 1;

[0065] Step 2: According to the test requirements, lift the chute 1 2 to a specific angle with the lifting device 10, adjust the angle of the chute 2 3 to a specific angle, and then fix the supporting roller 9 to ensure that it does not slide;

[0066] Step 3: Adjust the height and angle of the high-speed camera 29 to ensure that the front and side shots are clear and recorded completely;

[0067] Step 4: Turn on the air pump and extract the gas in the cylinder 4, so that the material bin baffle 5 opens quickly, and the granular material slides freely downward along the chute 2;

[0068] Step 5: The high-speed camera records the images of the granular material sliding down in the chute 2, the sliding and accumulation process in the chute 3, and the final accumulation position and accumulation form under the condition;

[0069] Step 6: Pull out the baffle 8 at the tail of the second chute 3, clean the rock and soil materials in the second chute, and repeat the above steps to carry out the next set of tests;

[0070] Step 7: After several sets of tests, replace the inner layer of plexiglass on the side wall of the chute and start the next set of tests.

[0071] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A simulation test device for the movement and accumulation characteristics of a dam body, characterized in that: include: A slide groove 1 (2) and a slide groove 2 (3), one end of the slide groove 1 (2) is hinged to the hinge bracket (6), and the other end of the slide groove 1 (2) is connected to the lifting device (10), and the lifting device (10) lifts one end of the slide groove 1 (2) to make the slide groove 1 (2) tilted; One end of the second slide groove (3) is arranged at one end close to the first slide groove (2) through a rotating bracket (7), and this end of the first slide groove (2) is connected to the hinge bracket. The bottom of the other end of the second slide groove is connected to a supporting roller (9). The rotating bracket (7) and the supporting roller (9) enable the second slide groove to be arranged horizontally, and the second slide groove can rotate horizontally relative to the first slide groove; A connecting bottom plate (22) and a side plate are provided between the first chute (2) and the second chute (3); a material bin (1) is provided in the first chute (2); materials in the material bin slide down from the first chute, enter the second chute through the connecting bottom plate, and are accumulated in the second chute.

2. A simulation test device for the movement and accumulation characteristics of a dam body according to claim 1, characterized in that: The end faces of the first slide groove and the second slide groove are both inverted trapezoidal.

3. A simulation test device for the movement and accumulation characteristics of a dam body according to claim 1, characterized in that: The side walls of the chute 1 and the chute 2 are both made of transparent organic glass, and high-speed cameras are arranged on the top and sides of the chute 1 and the chute 2.

4. A simulation test device for the movement and accumulation characteristics of a dam body according to claim 3, characterized in that: The side walls of the first and second slideways are both made of two layers of transparent organic glass, the outer layer is thicker than the inner layer, and the inner and outer layers are fixed with bolts.

5. A simulation test device for the movement and accumulation characteristics of a dam body according to claim 1, characterized in that: A clamping groove is arranged in the second slide groove (3) near the supporting roller, and a baffle (8) is arranged in the clamping groove for sliding.

6. A simulation test device for the movement and accumulation characteristics of a dam body according to claim 1, characterized in that: There are two articulated brackets (6), which are respectively arranged on both sides of the slide slot 1 (2); the connection structure between the two sides of the slide slot 1 and the articulated bracket is the same, and one side of the slide slot 1 is used as the description; The bottom wall of the slide groove 1 is fixedly connected to the bottom support 1 (11), the side wall of the slide groove 1 is fixedly connected to the side support (12), the bottom support 1 (11) and the side support (12) are fixedly connected, the side support is fixedly connected to a rotating connection frame (14), and the rotating connection frame is correspondingly arranged with the articulated bracket; the articulated bracket and the rotating connection frame on the same side are jointly provided with an articulated shaft (16), the rotating connection frame is connected to the articulated shaft through a bearing, the rotating connection frame, the side support, and the bottom support 1 are jointly connected to the base (13), and form a whole with the slide groove 1 (2).

7. A simulation test device for the movement and accumulation characteristics of a dam body according to claim 1, characterized in that: The rotating bracket (7) comprises a bearing base (17), a bearing (18) and a support plate (20), wherein the bearing is supported on the bearing base, the rotating shaft of the bearing is arranged vertically, and the support plate is arranged on the bearing; the bottom wall of the second slideway is fixedly connected with the second bottom support (19), and the bottom end of the second bottom support is fixedly connected with the support plate (20), so that the support plate, the second bottom support and the second slideway form a whole and can rotate through the bearing.

8. A simulation test device for the movement and accumulation characteristics of a dam body according to claim 7, characterized in that: The connecting bottom plate (22) is overlapped between the first slide groove and the second slide groove, one end of the connecting bottom plate is in contact with the first slide groove, and the other end of the connecting bottom plate is overlapped on the bottom support 2 (19) of the second slide groove, and this end is an arc structure.

9. A simulation test device for the movement and accumulation characteristics of a dam body according to claim 7, characterized in that: The side panels on both sides between the first chute and the second chute have the same structure. Taking one side as an example, the side panel includes: A side panel 1 (23), a side panel 2 (24), a hinge baffle (25) and a hinge support (26), wherein the hinge support is fixedly connected to the upper surface of the connecting bottom plate (22), the hinge baffle (25) is fixedly connected to the hinge support (26), the hinge of the hinge baffle (25) is vertically arranged, and a strip hole 1 (27) is provided at one end of the hinge baffle (25) close to the second slide groove; One end of the side plate 1 (23) close to the slide groove 2 (3) is fixedly connected to the slide groove 2, and the other end of the side plate 1 is provided with a strip hole 2, the position and size of the strip hole 2 are adapted to the strip hole 1 (27) of the hinge baffle (25), and the side plate 1 (23) and the hinge baffle (25) are connected together by inserting a connecting piece through the two strip holes, and the side plate 1 (23) and the hinge baffle (25) are slidably connected; One end of the second side plate (24) is fixedly connected to the hinge baffle, and the other end is a free end located outside the first chute. The material slides down from the first chute and passes through the second side plate (24), the hinge baffle (25), and the first side plate (23) in sequence into the second chute.

10. A test method for simulating the movement and accumulation characteristics of a dam body, characterized in that: The test device according to any one of claims 1 to 9 comprises the following steps: Step 1: Lay the chute 1 (2) flat, close the material bin baffle (5), select the required graded rock and soil materials according to the test requirements, and put them into the material bin (1); Step 2: According to the test requirements, lift the first slideway (2) to a specific angle using a lifting device (10), adjust the angle of the second slideway (3) to a specific angle, and then fix the roller (9); Step 3: Adjust the height and angle of the high-speed camera (29) to ensure that the front and side shots are clear and recorded completely; Step 4: Turn on the air pump and extract the gas in the cylinder (4), so that the material bin baffle (5) opens quickly, and the rock and soil material slides freely downward along the chute 1 (2); Step 5: Record the pictures of the rock and soil material sliding down in the chute 1 (2) under the conditions, the pictures of the sliding and accumulation process in the chute 1 (3), and the pictures of the final accumulation position and accumulation shape; Step 6: Pull out the tail baffle (8) of the second chute (3), clean the rock and soil materials in the second chute, and repeat the above steps to carry out the next set of tests.

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