A model test system for particle sorting of landslide debris flow

Abstract

The present invention discloses a landslide debris flow particle sorting model test system, comprising: a steel frame, on which a transmission device is arranged, the transmission device is connected to a power device; a wear-resistant resin glass box without a bottom plate, which is fixedly connected to the steel frame, the wear-resistant resin glass box is in contact with the transmission device, and strain gauges are arranged at the ends of both ends of the wear-resistant resin glass box; a bracket, which is rotatably connected to one end of the steel frame; a hydraulic support device, which is located below the steel frame, and the hydraulic support device is movably connected to the steel frame; a group of hydraulic loading instruments, which are all located on one side of the steel frame, and a part of a group of the hydraulic loading instruments is located in the wear-resistant resin glass box. The landslide debris flow particle sorting model test system of the present invention has a simple structure, is easy to assemble, and is easy to operate, and can simulate the sorting of debris flow particles under different thicknesses, different movement speeds, different site conditions, different slopes, and different friction coefficients of debris flows.

Description

Technical Field

[0001] The invention belongs to the field of landslide debris flow model experiments, and in particular relates to a landslide debris flow particle sorting model test system. Background Art

[0002] Landslide debris flow is a kind of rock debris flow that moves long distances along the surface of the slope. During the long-distance movement of debris flow, particle size sorting will occur and certain stratigraphic characteristics will be shown in the accumulation body. The conditions for the generation of landslide debris flow are complex and there are many factors. The diversity, variability and complexity of the occurrence and movement mechanism make it difficult to predict and expensive to control. Once it occurs, it will cause significant casualties and property losses. At present, the main methods for studying the particle sorting phenomenon of landslide debris flow are numerical simulation and model test. Numerical simulation is convenient and fast, with low investment, but its accuracy depends on the correct selection of parameters such as calculation boundary conditions and soil physical and mechanical characteristics. The physical model test system can intuitively simulate the deformation characteristics of the landslide, with a large amount of information and high credibility, providing first-hand data for the study of landslide debris flow, and can also be mutually verified with the numerical simulation results. These model test devices have promoted the study of landslide debris flow problems to a certain extent, but there are still certain limitations or defects in the experimental study of debris flow particle sorting. Summary of the invention

[0003] An object of the present invention is to solve at least the above problems and / or disadvantages and to provide at least the advantages which will be described hereinafter.

[0004] In order to achieve these purposes and other advantages according to the present invention, a landslide debris flow particle sorting model test system is provided, comprising:

[0005] A steel frame, on which a transmission device is arranged, and the transmission device is connected to a power device;

[0006] A wear-resistant resin glass box without a bottom plate is fixedly connected to the steel frame, the wear-resistant resin glass box without a bottom plate is in contact with the transmission device, and strain gauges are provided at the ends of both ends of the wear-resistant resin glass box without a bottom plate;

[0007] A bracket, which is rotatably connected to one end of the steel frame;

[0008] A hydraulic support device, which is located below the steel frame and is movably connected to the other end of the steel frame;

[0009] A group of hydraulic loading instruments are all located on one side of the steel frame, and a part of the group of hydraulic loading instruments is located in a wear-resistant resin glass box without a bottom plate.

[0010] Preferably, the transmission device comprises:

[0011] Roller I and roller II are rotatably connected to the ends of the steel frame through a set of slidable bearings and a set of fixed bearings respectively. Gears are arranged on the surfaces of roller I and roller II, and a driven sprocket is fixedly connected to roller II.

[0012] A transmission crawler, which is interconnected with the roller I and the roller II, and the edge of the transmission crawler is provided with a chain I that engages with the gear, and the transmission crawler is located outside the steel frame;

[0013] A plurality of support rollers are arranged at equal intervals and are rotatably connected to the steel frame via bearings. The plurality of support rollers are in contact with the transmission crawler belt.

[0014] Preferably, a group of the slidable bearings are connected to the steel frame in the following manner: waist-shaped holes are symmetrically arranged on the steel frame, the steel frame is fixedly connected to a square frame through the waist-shaped holes and screws, protrusions are arranged on the inner walls of the upper and lower ends of the square frame, a slidable slider is arranged between the protrusions, a groove matching the protrusion is arranged on the slider, the slider is fixedly connected to the bearing, and the slider is also fixedly connected to the square frame through bolts.

[0015] Preferably, the wear-resistant resin glass box without a bottom plate comprises:

[0016] A tempered frame without a bottom plate is provided, on which a plurality of fixed side plates are connected via high-strength gel, and a plurality of roller grooves for locking rollers are provided on the tempered frame without a bottom plate, and the lower end surface of the tempered frame without a bottom plate is located on the end surface of the transmission crawler;

[0017] A wear-resistant resin glass loading panel that can slide along the roller groove of the tempered frame is located inside the space formed by the tempered frame. A plurality of rollers are arranged on the edge of the end face of the loading panel, and the plurality of rollers are engaged with the roller grooves.

[0018] Preferably, a set of said hydraulic loading instruments comprises:

[0019] A group of movable support bases, which are all arranged on one side of the steel frame, and a controller for controlling the power supply disconnection, movement trajectory and loading force of the hydraulic loading instrument is arranged on each of the group of support bases;

[0020] A group of movable hydraulic support arms, which are respectively fixedly connected to the support base;

[0021] A group of movable hydraulic loading rods, which are movably connected to the hydraulic support arms respectively;

[0022] A group of circular loading heads are respectively fixedly connected to the hydraulic loading rods, and the group of circular loading heads is located in the wear-resistant resin glass box and abuts against the upper end surface of the loading panel.

[0023] Preferably, the power device comprises:

[0024] An adjustable power motor is located below the roller II. The adjustable power motor is fixedly connected to a support plate by screws. The support plate is fixedly welded to one end of the steel frame. A driving sprocket is fixedly connected to the rotating shaft of the adjustable power motor.

[0025] The chain II is mutually engaged with the driving sprocket and the driven sprocket. A safety shell is arranged on the outer side of the chain II. The safety shell is detachably connected to the steel frame by screws.

[0026] Preferably, the bracket and the steel frame are rotatably connected in a manner of being rotatably connected via a bearing.

[0027] Preferably, the steel frame can rotate relative to the bracket at an angle of 0 to 60 degrees.

[0028] Preferably, the movable connection mode between the hydraulic support device and the steel frame is as follows: a slidable slide rail is provided on the lower end surface of one end of the steel frame, and the hydraulic support device is fixedly connected to the slide rail.

[0029] Preferably, the wear-resistant resin glass box and the steel frame are fixedly connected in the following manner: a plurality of groups of arc-shaped connecting rods are fixedly provided at two opposite ends of the steel frame, and the plurality of groups of arc-shaped connecting rods are respectively fixedly welded to the tempered frame; each group of the plurality of groups of arc-shaped connecting rods includes: an arc-shaped connecting rod I and an arc-shaped connecting rod II.

[0030] The present invention has at least the following beneficial effects:

[0031] The present invention has the characteristics of simple structure, convenient assembly, easy operation, targeting, large scale, multi-factor, full process and strong adjustability. It can simulate the sorting of debris flow particles under different thicknesses, different movement speeds, different site conditions, different slopes and different friction coefficients of debris flow, which is convenient for observing and studying the movement patterns of different types of landslide debris flows.

[0032] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A schematic diagram of the system structure provided by the present invention;

[0034] Figure 2 A front view of the system provided by the present invention;

[0035] Figure 3 A rear view of the system provided by the present invention;

[0036] Figure 4 A top view of the system provided by the present invention;

[0037] Figure 5 A partial structural schematic diagram provided by the present invention;

[0038] Figure 6 A partial structural schematic diagram provided by the present invention;

[0039] Figure 7 A schematic diagram of the structure of the power device provided by the present invention;

[0040] Figure 8 A schematic diagram of the connection structure of the roller 1 provided by the present invention;

[0041] Fig. 9 A schematic diagram of a slidable bearing connection structure provided by the present invention;

[0042] Fig.10 This is a schematic diagram of the partial structure of the wear-resistant resin glass box provided by the present invention. DETAILED DESCRIPTION

[0043] The present invention is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0044] It should be understood that terms such as “having”, “including” and “comprising” used herein do not specify the existence or addition of one or more other elements or combinations thereof.

[0045] like Figure 1-10 A landslide debris flow particle sorting model test system is shown, comprising:

[0046] A steel frame 1, on which a transmission device 2 is arranged, and the transmission device 2 is connected to a power device 3;

[0047] A wear-resistant resin glass box 4 without a bottom plate is fixedly connected to the steel frame 1, the wear-resistant resin glass box 4 without a bottom plate is in contact with the transmission device 2, and strain gauges 5 are provided at the ends of both ends of the wear-resistant resin glass box 4 without a bottom plate;

[0048] A bracket 6, which is rotatably connected to one end of the steel frame 1;

[0049] A hydraulic support device 7, which is located below the steel frame 1 and is movably connected to the other end of the steel frame 1;

[0050] A group of hydraulic loading instruments 8 are all located on one side of the steel frame 1, and a part of the group of hydraulic loading instruments 8 is located in a wear-resistant resin glass box 4 without a bottom plate.

[0051] Working principle: According to the experimental content, select a transmission device 2 that meets the requirements for installation, put the material simulating debris flow particles into a wear-resistant resin glass box 4 without a bottom plate, and the simulated debris flow particles are in contact with the transmission device 2, which plays a supporting role through the hydraulic support device 7, and can make the steel frame 1 rotate around the bracket 6 through its own lifting, so as to adjust the inclination angle of the steel frame 1; push a set of hydraulic loading instruments 8 to the required position of the test and keep the position unchanged during the test, adjust the hydraulic loading instrument 8, so that a part of the hydraulic loading instrument 8 is located in the wear-resistant resin glass box 4, and give a certain pressure to the material simulating debris flow particles, adjust the hydraulic loading instrument 8, so that the force point and the applied pressure meet the requirements of the test, turn on the power device 3, and the power device 3 provides the corresponding power to the transmission device 2, simulates the speed of the debris flow particles sliding down, and then the relevant test can be carried out. Among them, the strain gauges 5 set at the ends of the two ends of the wear-resistant resin glass box 4 can collect various data required for the test.

[0052] In the above technical solution, the transmission device 2 includes:

[0053] Roller I 21 and roller II 22 are rotatably connected to the ends of the steel frame 1 through a set of slidable bearings 201 and a set of fixed bearings 202, respectively. Gears 203 are provided on the surfaces of the rollers I 21 and II 22, and a driven sprocket 23 is fixedly connected to the roller II 22;

[0054] A transmission crawler 24, which is interconnected with the roller I 21 and the roller II 22, and the edge of the transmission crawler 24 is provided with a chain I 25 that engages with the gear 203, and the transmission crawler 24 is located outside the steel frame 1;

[0055] A plurality of support rollers 26 are arranged at equal intervals and are rotatably connected to the steel frame 1 via bearings. The plurality of support rollers 26 are in contact with the transmission track 24 .

[0056] In this way, the rollers are located at both ends of the transmission track, and the transmission track is driven to move by the rotation of the rollers to simulate the speed of the debris flow particles sliding down. The connection is more stable through the bearings, which ensures that the jump is smaller during rotation, making the test more accurate; a chain I is set on the edge of the transmission track, and gears engaged with the chain I and the roller II are set on the surfaces of the rollers I and II, which can limit the position of the transmission track to avoid position deviation during rotation; the support rollers can support the transmission track to avoid damage caused by large deformation of the transmission track due to the gravity of the material simulating the debris flow particles and the pressure of the hydraulic loader.

[0057] In the above technical solution, a group of the slidable bearings 201 are connected to the steel frame 1 in the following manner: the steel frame 1 is symmetrically provided with waist-shaped holes 11, the steel frame 1 is fixedly connected with a square frame 12 through the waist-shaped holes 1 and screws, the inner walls of the upper and lower ends of the square frame 12 are provided with protrusions 121, a slidable slider 13 is provided between the protrusions 121, the slider 13 is provided with a groove 131 matching the protrusion 121, the slider 13 is fixedly connected to the slidable bearings 201, and the slider 13 is also fixedly connected to the square frame 12 through bolts 14. In this way, during the experiment, the transmission crawler will have a certain amount of deformation, which may cause a large gap between the transmission crawler and the wear-resistant resin glass box, and cause the material simulating the debris flow particles to leak out, therefore, a slidable bearing is provided, and the position of the roller 1 is adjusted by rotating the bolts and changing the position of the square frame, so that the transmission crawler can be in a tight state, ensuring the accuracy of the test.

[0058] In the above technical solution, the wear-resistant resin glass box 4 without a bottom plate includes:

[0059] A tempered frame 41 without a bottom plate is provided with a plurality of fixed side plates 42 connected thereto via high-strength gel, and the tempered frame 41 without a bottom plate is provided with a plurality of roller grooves 411 for locking rollers, and the lower end surface of the tempered frame 41 without a bottom plate is located on the end surface of the transmission crawler 24;

[0060] The wear-resistant resin glass loading panel 43 can slide along the roller groove 411 of the tempered frame 41 and is located inside the space formed by the tempered frame 41. A plurality of rollers 431 are arranged on the edge of the end surface of the loading panel 43, and the plurality of rollers 431 are engaged with the roller groove 411.

[0061] In this way, the tempered frame cooperates with the fixed side panel to form a certain space for accommodating the material simulating the debris flow particles, and the loading panel covers the upper end of the material simulating the debris flow particles to ensure that the surface of the material simulating the debris flow particles can be evenly stressed during the pressure applied by the hydraulic loader, making the test more scientific; rollers are set at the edge of the loading panel, and roller grooves are set on the tempered frame to facilitate locking the position of the loading panel; the fixed side panel is fixed between the tempered frames with high-strength gel to withstand the impact and scraping action of the debris flow; the tempered frame 41 is in contact with the end face of the transmission track 24 to ensure that during the test, the simulated debris flow particles will not fall out of the gap between the tempered frame 41 and the transmission track 24.

[0062] In the above technical solution, a set of the hydraulic loading instruments 8 includes:

[0063] A group of movable support bases 81, which are all arranged on one side of the steel frame 1, and a group of the support bases 81 are all provided with a controller 811 for controlling the power supply disconnection, movement trajectory and loading force of the hydraulic loading instrument 8;

[0064] A group of movable hydraulic support arms 82, which are respectively fixedly connected to the support base 81;

[0065] A group of movable hydraulic loading rods 83, which are movably connected to the hydraulic support arms 82 respectively;

[0066] A group of circular loading heads 84 are respectively fixedly connected to the hydraulic loading rods 83 , and the group of circular loading heads 84 is located in the wear-resistant resin glass box 4 and abuts against the upper end surface of the loading panel 43 .

[0067] In this way, a movable support base is provided to facilitate the movement of the hydraulic loading instrument and save manpower; and the hydraulic support arm and the hydraulic loading rod are arranged to be movable, so as to ensure that during the experiment, after the angle of the steel frame changes, the position and direction of the hydraulic support arm and the hydraulic loading rod can be adjusted so that the circular loading head can remain perpendicular to the loading panel and adapt to the inclination change of the steel frame, that is, the wear-resistant resin glass box.

[0068] In the above technical solution, the power device 3 includes:

[0069] An adjustable power motor 31 is located below the roller II 22. The adjustable power motor 31 is fixedly connected to a support plate 32 by screws (not shown). The support plate 32 is fixedly welded to one end of the steel frame 1 202. A driving sprocket 33 is fixedly connected to the rotating shaft 311 of the adjustable power motor 31.

[0070] The chain II 34 is engaged with the driving sprocket 33 and the driven sprocket 23. A safety shell 35 is disposed outside the chain II 34. The safety shell 35 is detachably connected to the steel frame 1 by screws (not shown).

[0071] In this way, an adjustable power motor is used. By adjusting the speed of the motor, the speed of the driving sprocket and the driven sprocket can be changed, so that the transmission track has different speeds; the adjustable power motor is fixedly connected to the steel frame so that the adjustable power motor and the steel frame are integrated to avoid displacement of the driven sprocket relative to the driving sprocket during the raising of one end of the steel frame, which may cause damage to the connection part.

[0072] In the above technical solution, the bracket 6 and the steel frame 1 are rotatably connected in a manner that they are rotatably connected via a bearing 61. In this manner, the rotatable connection via the bearing makes the connection structure stable and has a long service life.

[0073] In the above technical solution, the rotatable angle of the steel frame 1 relative to the bracket 6 is 0 to 60 degrees.

[0074] In the above technical solution, the movable connection mode of the hydraulic support device 7 and the steel frame 1 is as follows: a slidable slide rail 15 is provided on the lower end surface of one end of the steel frame 1, and the hydraulic support device 7 is fixedly connected to the slide rail 15. In this way, when the hydraulic support device is raised, the steel frame moves in an arc around the point where it is connected to the bracket, and the slidable slide rail is provided to ensure that the slide rail can cooperate with the hydraulic support device while the steel frame is raised, so that the steel frame can smoothly change its angle.

[0075] In the above technical solution, the wear-resistant resin glass box 4 and the steel frame 1 are fixedly connected in the following manner: a plurality of groups of arc-shaped connecting rods 16 are fixedly provided at two opposite ends of the steel frame 1, and the plurality of groups of arc-shaped connecting rods 16 are respectively fixedly welded to the tempered frame 41; each group of the plurality of groups of arc-shaped connecting rods 16 includes: an arc-shaped connecting rod I 161 and an arc-shaped connecting rod II 162. In this manner, the arc-shaped connecting rods I and II are provided to fix the wear-resistant resin glass box, thereby improving the structural strength of the connection point and preventing the connection point from becoming loose.

[0076] The number of equipment and processing scales described here are used to simplify the description of the present invention. Applications, modifications and variations of the landslide debris flow particle sorting model test system of the present invention will be obvious to those skilled in the art.

[0077] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A landslide debris flow particle sorting model test system, It is characterized in that include: A steel frame is provided with a transmission device, the transmission device is connected to a power device, and the transmission device comprises: Roller I and roller II are rotatably connected to the ends of the steel frame through a set of slidable bearings and a set of fixed bearings respectively. Gears are arranged on the surfaces of roller I and roller II, and a driven sprocket is fixedly connected to roller II. A transmission crawler, which is interconnected with the roller I and the roller II, and the edge of the transmission crawler is provided with a chain I that engages with the gear, and the transmission crawler is located outside the steel frame; A plurality of support rollers arranged at equal intervals, which are rotatably connected to the steel frame through bearings, and the plurality of support rollers are in contact with the transmission crawler; A wear-resistant resin glass box without a bottom plate is fixedly connected to the steel frame, the wear-resistant resin glass box without a bottom plate is in contact with the transmission device, and strain gauges are provided at the ends of both ends of the wear-resistant resin glass box without a bottom plate; The bracket is rotatably connected to the steel frame through a bearing. A hydraulic support device is located below the steel frame, a slidable slide rail is provided on the lower end surface of one end of the steel frame, and the hydraulic support device is slidably connected to the slide rail; A group of hydraulic loading instruments, all of which are located on one side of the steel frame, and a part of the group of hydraulic loading instruments is located in a wear-resistant resin glass box without a bottom plate; A group of slidable bearings are connected to the steel frame in the following manner: waist-shaped holes are symmetrically arranged on the steel frame, and the steel frame is fixedly connected to a square frame through the waist-shaped holes and screws; protrusions are arranged on the inner walls of the upper and lower ends of the square frame, and a slidable slider is arranged between the protrusions; a groove matching the protrusion is arranged on the slider, and the slider is fixedly connected to the bearing, and the slider is also fixedly connected to the square frame through bolts.

2. The landslide debris flow particle sorting model test system according to claim 1, It is characterized in that The wear-resistant resin glass box without a bottom plate comprises: A tempered frame without a bottom plate is provided, on which a plurality of fixed side plates are connected via high-strength gel, a plurality of roller grooves for locking rollers are provided on the tempered frame without a bottom plate, and a lower end surface of the tempered frame without a bottom plate is located on an end surface of the transmission crawler; A wear-resistant resin glass loading panel that can slide along the roller groove of the tempered frame is located inside the space formed by the tempered frame. A plurality of rollers are arranged on the edge of the end face of the loading panel, and the plurality of rollers are engaged with the roller grooves.

3. The landslide debris flow particle sorting model test system according to claim 1, It is characterized in that A set of said hydraulic loading instruments comprises: A group of movable support bases, which are all arranged on one side of the steel frame, and a controller for controlling the power supply disconnection, movement trajectory and loading force of the hydraulic loading instrument is arranged on each of the group of support bases; A group of movable hydraulic support arms, which are respectively fixedly connected to the support base; A group of movable hydraulic loading rods, which are movably connected to the hydraulic support arms respectively; A group of circular loading heads are respectively fixedly connected to the hydraulic loading rods, and the group of circular loading heads is located in the wear-resistant resin glass box and abuts against the upper end surface of the loading panel.

4. The landslide debris flow particle sorting model test system according to claim 1, It is characterized in that The power device comprises: An adjustable power motor is located below the roller II. The adjustable power motor is fixedly connected to a support plate by screws. The support plate is fixedly welded to one end of the steel frame. A driving sprocket is fixedly connected to the rotating shaft of the adjustable power motor. The chain II is mutually engaged with the driving sprocket and the driven sprocket. A safety shell is arranged on the outer side of the chain II. The safety shell is detachably connected to the steel frame by screws.

5. The landslide debris flow particle sorting model test system according to claim 1, It is characterized in that The steel frame can rotate relative to the bracket at an angle of 0 to 60 degrees.

6. The landslide debris flow particle sorting model test system according to claim 1, It is characterized in that The wear-resistant resin glass box and the steel frame are fixedly connected in the following manner: a plurality of groups of arc-shaped connecting rods are fixedly provided at two opposite ends of the steel frame, and the plurality of groups of arc-shaped connecting rods are respectively fixedly welded to the tempered frame; each group of the plurality of groups of arc-shaped connecting rods includes: an arc-shaped connecting rod I and an arc-shaped connecting rod II.

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