A multifunctional bearing platform device for landslide test

Abstract

The present invention provides a multifunctional bearing platform device for landslide test, the device includes a main unit and a rain seepage unit, the main unit includes a main frame, a lifting mechanism and a safety protection mechanism; the rain seepage unit realizes the water supply function through a water supply tank installed on the rear side of the main unit, the rain seepage unit includes a rain mechanism, a side wall and underground seepage mechanism and a dam body overflow mechanism. The multifunctional bearing platform device for landslide test provided by the present invention adopts a splicing structure and is easy to transport. The bearing platform device can carry out indoor similarity simulation experiments of large-scale slope engineering, and track, analyze and study the dynamic evolution process of slope instability through monitoring technologies such as angle, pressure, impact force, water level, flow rate and dynamic and static data acquisition, thereby providing effective technical support for the study of slope instability destruction mechanism and landslide early warning technology.

Description

Technical Field

[0001] The invention relates to the technical field of slope engineering tests, and in particular to a multifunctional bearing platform device for landslide tests. Background Art

[0002] As the world's population continues to increase, the space for human production and life continues to expand, and engineering activities supported by economic and technical conditions become more frequent. In addition, affected by global climate change, landslide disasters occur frequently, including large-scale landslide disasters, causing huge casualties and property losses. So far, landslide disasters have occurred in all areas where human production and life activities occur, becoming a type of disaster with the highest frequency and the greatest losses among all disasters.

[0003] With the continuous extension of open-pit mines, the slopes of many open-pit mines are getting higher and steeper, forming high and steep slopes, and the risk of landslides is getting higher and higher. Therefore, the stability of mine slopes is a major problem that my country's open-pit mines, especially deep open-pit mines, must face. The monitoring and early warning technology of dynamic disasters on mine slopes will be an important research direction in the field of mine safety production.

[0004] In the prior art, test devices for landslides often use proportionally reduced models to be built on the horizontal ground in a limited closed space. However, due to the scale effect of the model, it is difficult to truly simulate and restore the slope landslide and tailings dam breach phenomenon, which greatly limits the understanding and exploration of the instability and failure mechanism of slope engineering. Summary of the invention

[0005] In view of this, the purpose of the present invention is to provide a multifunctional bearing platform device for landslide test to solve the problem of simulation restoration of landslide test in large-scale slope engineering.

[0006] Based on the above purpose, the present invention provides a multifunctional bearing platform device for landslide test, the device comprises a main unit, the main unit comprises a main frame, a lifting mechanism and a safety protection mechanism;

[0007] The mainframe frame includes a base longitudinal frame and a baffle frame fixedly connected to the side of the base longitudinal frame, the baffle frame includes a rear baffle frame and two side baffle frames, the front side of the mainframe frame is open, and the bottom of the base longitudinal frame is fixedly connected to a transverse steel plate;

[0008] The lifting mechanism is arranged on at least one side of the main frame close to the rear baffle frame, and is used to lift the main frame;

[0009] The safety protection mechanism is arranged on at least one side of the rear end of the main frame, and the safety protection mechanism includes a limit bracket, a limit pin and a telescopic cylinder. The limit pin is fixedly installed at the rear end of the bottom longitudinal frame, and the limit bracket includes a support plate and at least one partition fixedly connected between the two support plates, and a second pin support seat is fixedly arranged on the partition. The telescopic cylinder controls the extension and retraction of the limit pin, and when the limit pin is extended, the limit pin cooperates with the groove on the surface of the second pin support seat.

[0010] Furthermore, the device also includes a rain and water seepage unit, which realizes a water supply function through a water supply tank installed on the rear side of the main unit. The rain and water seepage unit includes a rain mechanism, a side wall and underground water seepage mechanism, and a flooding water tank; the flooding water tank is connected to the water supply tank through a drain pipe, and the flooding water tank is fixedly connected to the rear baffle frame.

[0011] Furthermore, the longitudinal frame of the base is formed by a longitudinal beam and connecting ribs fixedly connected; the upper part of the longitudinal frame of the base is fixedly connected to a load-bearing support plate, and a sealing gasket and a sealant are provided at the joint of the load-bearing support plate, and a steel plate strip is fixedly connected to the sealing gasket and the sealant.

[0012] Furthermore, the main frame also includes an upper crossbeam, and both ends of the upper crossbeam are fixedly connected to the baffle frames on both sides.

[0013] Furthermore, a plurality of transparent polycarbonate panels are installed inside the baffles on both sides, and polycarbonate panel pressure plates are fixed at the joints of the transparent polycarbonate panels.

[0014] Furthermore, a ruler is installed on the transparent polycarbonate plate.

[0015] Furthermore, the lifting mechanism includes a bottom transverse beam, a lifting column and a lifting cylinder, the bottom transverse beam is fixedly connected to the transverse steel plate; the lower end of the lifting column is fixedly connected to the end of the bottom transverse beam, the upper end of the lifting column is hinged to the upper end of the lifting cylinder, and the lower end of the lifting cylinder is connected to the base bearing seat.

[0016] Furthermore, the lifting cylinder adopts a two-stage cylinder structure, the lifting cylinder piston rod is installed downward, and the lifting cylinder cylinder barrel is installed upward.

[0017] Furthermore, the shower mechanism includes a rainfall pipeline and a nozzle arranged on the top of the main frame, the rainfall pipeline is connected to the water supply tank through a water pipe, and the nozzle is connected to the rainfall pipeline.

[0018] Furthermore, the side wall and underground water seepage mechanism include water seepage pipes respectively arranged inside the rear baffle frame and the longitudinal frame of the base, the water seepage pipes are provided with a plurality of openings, and the water seepage pipes are wrapped with a filter net.

[0019] From the above, it can be seen that the present invention provides a multifunctional bearing platform device for landslide tests. The bearing platform adopts a splicing structure, and the parts can be detachably spliced, which can effectively avoid the inconvenience caused by the overall transportation of the device. The single component of the bearing platform is light in weight, easy to lift, and quick to splice, which is convenient for later maintenance. The setting of the lifting mechanism can support the simulated specimens at different angles. The bearing platform also has the functions of precipitation simulation, groundwater seepage and sidewall seepage simulation. It can carry out indoor similarity simulation experiments of large-scale slope projects. Through angle, pressure, impact force, water level, flow rate monitoring and dynamic and static data collection, the dynamic evolution process of slope instability can be tracked, analyzed and studied, thereby providing effective technical support for the study of slope instability and destruction mechanism and landslide early warning technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a schematic diagram of the overall structure of the carrying platform according to an embodiment of the present invention;

[0022] Figure 2 A schematic diagram of the host frame structure of an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the longitudinal skeleton structure of a base according to an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of a load-bearing support plate according to an embodiment of the present invention;

[0025] Figure 5 This is a schematic structural diagram of a transparent polycarbonate sheet according to an embodiment of the present invention;

[0026] Figure 6 It is a structural schematic diagram of a flip pin seat according to an embodiment of the present invention;

[0027] Figure 7 It is a structural schematic diagram of a lifting mechanism according to an embodiment of the present invention;

[0028] Figure 8 It is a schematic diagram of the hydraulic safety protection measures of the lifting cylinder according to an embodiment of the present invention;

[0029] Fig. 9 A schematic diagram of the structure of a safety protection mechanism according to an embodiment of the present invention;

[0030] Fig.10 It is a partial enlarged diagram of the schematic diagram of the safety protection mechanism of an embodiment of the present invention;

[0031] Fig.11 This is a schematic diagram of the principle of a rainfall system according to an embodiment of the present invention;

[0032] Fig.12 It is a schematic structural diagram of the side wall and underground water seepage mechanism of an embodiment of the present invention.

[0033] Figure numerals: 1, main unit; 2, rain and water seepage unit; 3, water supply tank; 4, water tank bracket; 5, water tank water supply pipe; 6, water discharge pipeline; 7, flooding water tank; 8, base longitudinal frame; 9, rear baffle frame; 10, two side baffle frames; 11, longitudinal beam; 12, connecting ribs; 13, transverse steel plate; 14, bottom transverse beam; 15, load-bearing support plate; 16, steel plate pressure strip; 17, upper beam; 18, transparent endurance plate; 19, endurance plate pressure plate; 20, flip pin seat; 201, first pin support seat ; 202, first pin shaft seat; 21, foundation connecting plate; 22, lifting column; 23, lifting cylinder; 24, explosion-proof valve; 25, buffer valve; 26, limit bracket; 261, support plate; 262, partition; 27, limit pin shaft; 271, second pin shaft support seat; 272, second pin shaft seat; 28, telescopic cylinder; 29, rainfall pipeline; 30, sprinkler; 31, switch valve; 32, water distributor; 33, filter; 34, flow regulating valve; 35, side wall seepage pipeline; 36, underground seepage pipeline. DETAILED DESCRIPTION

[0034] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0035] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present invention should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the present disclosure do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0036] As described in the background technology, dynamic monitoring and early warning technology for landslide disasters is an important research direction in the field of mine safety production. The model cannot truly realize the simulation and restoration of slope landslides and tailings dam breaches, which limits the understanding and exploration of the instability and failure mechanism of slope engineering and cannot provide early warning of the occurrence of disasters.

[0037] In order to solve the above technical problems, one or more embodiments of the present disclosure provide a multifunctional load-bearing platform device for landslide test, referring to Figure 1 The device includes a main unit 1 and a rain and water seepage unit 2. The main unit 1 includes a main frame, a lifting mechanism and a safety protection mechanism. The device can be lifted at different angles through the lifting mechanism. The safety protection mechanism cooperates with the lifting mechanism to protect the device in the lifted state. The rain and water seepage unit 2 can simulate artificial rainfall and water seepage, and restore the situation when a natural disaster occurs to the greatest extent.

[0038] Furthermore, the main frame includes a base longitudinal frame 8 and a baffle frame fixedly connected to the side of the base longitudinal frame 8, the baffle frame includes a rear baffle frame 9 and two side baffle frames 10, the front side of the main frame is open, and the bottom of the base longitudinal frame 8 is fixedly connected to a transverse steel plate 13.

[0039] As an optional embodiment, Figure 2 As shown, the side baffles 10 are welded by H-shaped steel, square steel, angle steel and steel plate to form a frame, and are fixed to the base longitudinal frame 8 by high-strength bolts. Sealing pads are installed on the connection surface and sealant is applied to prevent water seepage. Bolt-fixed connection can be easily spliced ​​and disassembled, and later maintenance is convenient. The rear baffle 9 is welded by square steel, steel plate, etc. The side of the rear baffle 9 is fixed to the side of the two side baffles 10 by bolts. The bottom of the rear baffle 9 is bolted to the base longitudinal frame 8. Sealing pads are installed on the connection surface and sealant is applied to prevent water seepage.

[0040] Furthermore, the base longitudinal frame 8 is formed by a longitudinal beam 11 and a connecting rib 12 fixedly connected. The upper portion of the base longitudinal frame 8 is fixedly connected to a load-bearing support plate 15, and a sealing gasket and a sealant are provided at the joint of the load-bearing support plate 15, and a steel plate strip 16 is fixedly connected to the sealing gasket and the sealant.

[0041] As an alternative embodiment, refer to Figure 3 The longitudinal frame 8 of the base is composed of a plurality of longitudinal beams 11, which are welded and fixed by connecting ribs 12. The longitudinal beams 11 are made of 300×305×15 I-beams, and the connecting ribs 12 are made of 100×100 square steel. A transverse steel plate 13 is welded to the bottom of the longitudinal frame 8 of the base. In this embodiment, three transverse steel plates 13 are welded to the bottom of the longitudinal frame 8 of the base, and the first pin seat 202 and the second pin seat 272 are welded to the front and rear ends of the bottom of the longitudinal frame 8 of the base, respectively.

[0042] like Figure 4 As shown, the bearing support plate 15 is fixedly connected to the longitudinal frame 8 of the base by bolts. In this embodiment, the bearing support plate 15 is composed of 5 steel plates of 6000×2000mm specifications, which can be transported and lifted individually, and the bolts can be removed when replacement is required. The joints of the bearing support plate 15 are provided with sealing gaskets and sealants, and the steel plate strips 16 are fixedly connected to the sealing gaskets and sealants. The bearing support plate 15 is fixed and the bearing surface has a stepped structure to prevent the overall downward sliding of the sample.

[0043] Furthermore, the main frame further includes an upper crossbeam 17 , and both ends of the upper crossbeam 17 are fixedly connected to the baffle frames 10 on both sides.

[0044] As an optional embodiment, Figure 2 As shown, the upper cross beam 17 is an I-beam structure and can be transported and lifted individually. The upper cross beam 17 can connect the two side baffles 10 to improve the rigidity and prevent the two side baffles 10 from tipping outwards.

[0045] Furthermore, a plurality of transparent polycarbonate panels 18 are installed inside the baffle frames 10 on both sides, and polycarbonate panel pressure plates 19 are fixed at the joints of the transparent polycarbonate panels 18 .

[0046] As an optional embodiment, Figure 5 As shown, several transparent polycarbonate plates 18 are installed on the two side baffles 10 to facilitate observation of the sample state. A polycarbonate plate pressure plate 19 is fixed at the joint of the several transparent polycarbonate plates 18. A 2000mm ruler is installed on each partition of the transparent polycarbonate plate 18 to measure the sample height monitoring. The transparent polycarbonate plate 18 can be transported and hoisted individually, and is easy to disassemble.

[0047] Furthermore, the lifting mechanism is arranged on at least one side of the main frame close to the rear baffle 9 to lift the main frame.

[0048] As an optional embodiment, Figure 2 As shown, the lifting mechanism cooperates with the flip pin seat 20 fixedly connected to the bottom of the base longitudinal frame 8 to realize the lifting of the main frame at different angles. In this embodiment, the load-bearing platform can achieve a 0-20 degree lift. Figure 6 The first pin support seat 201 of the flip pin seat 20 is connected to the foundation connecting plate 21 by high-strength bolts, and the foundation connecting plate 21 is welded to the foundation embedded plate.

[0049] Furthermore, the lifting mechanism includes a bottom transverse beam 14, a lifting column 22 and a lifting cylinder 23, the bottom transverse beam 14 is fixedly connected to the transverse steel plate 13; the lower end of the lifting column 22 is fixedly connected to the end of the bottom transverse beam 14, the upper end of the lifting column 22 is hinged to the upper end of the lifting cylinder 23, and the lower end of the lifting cylinder 23 is connected to the base bearing seat.

[0050] As an optional embodiment, refer to Figure 2 , Figure 3 and Figure 7 The bottom transverse beams 14 are provided in two parallel configurations, and the two bottom transverse beams 14 are respectively fixedly connected to the two transverse steel plates 13 welded at the bottom of the base longitudinal frame 8 by high-strength bolts. The lifting column 22 is formed by welding H-shaped steel and steel plates, and has an inverted V-shaped structure.

[0051] Furthermore, the lifting cylinder 23 adopts a two-stage cylinder structure, the piston rod of the lifting cylinder 23 is installed downward, and the cylinder barrel of the lifting cylinder 23 is installed upward.

[0052] As an optional embodiment, the lifting cylinder 23 adopts a two-stage cylinder structure, which can be transported and lifted individually. The advantage of this structure is that the length dimension is small enough when the output load is sufficient, which reduces the overall height of the bearing platform. The connection method at both ends of the secondary cylinder is a joint bearing articulated structure, one end is connected to the cylinder barrel, and the other end is connected to the secondary piston rod. The primary piston rod is inserted into the cylinder barrel, and the secondary piston rod is inserted into the primary piston rod. The front end of the piston rod is arranged with an oil inlet and return port. The piston rod of the lifting cylinder 23 is installed downward, and the cylinder barrel is upward to prevent dust, rainwater and other debris from entering the lifting cylinder cavity. The base bearing seat of the lifting cylinder 23 is connected to the foundation connecting plate 21 by bolts, and the foundation connecting plate 21 is welded to the foundation embedded plate.

[0053] As an optional embodiment, Figure 8As shown, the lifting cylinder 23 is also equipped with hydraulic safety protection measures, specifically explosion-proof valve 24 and buffer valve 25. The explosion-proof valve 24 can prevent the lifting cylinder 23 from unloading and the load-bearing platform from falling due to pipeline failure. The buffer valve 25 can prevent the load-bearing platform from falling too fast and play a buffering role.

[0054] like Fig. 9 As shown, the load-bearing platform is also equipped with a safety protection mechanism, which forms a double insurance with the hydraulic safety protection. The safety protection mechanism adopts a latch-type structure to realize automatic movement.

[0055] Furthermore, the safety protection mechanism is arranged on at least one side of the rear end of the main frame, and the safety protection mechanism includes a limit bracket 26, a limit pin 27 and a telescopic cylinder 28. The limit pin 27 is fixedly installed at the rear end of the bottom longitudinal skeleton 8. The limit bracket 26 includes a support plate 261 and at least one partition 262 fixedly connected between the two support plates 261. A second pin support seat 271 is fixedly provided on the partition 262. The telescopic cylinder 28 controls the extension and retraction of the limit pin 27. When the limit pin 27 is extended, the limit pin 27 cooperates with the groove on the surface of the second pin support seat 271.

[0056] As an optional embodiment, the safety protection mechanism is provided with two sets, which are respectively provided on both sides of the rear end of the host frame. Fig.10 When the lifting cylinder 23 is in the lifting state, the telescopic cylinder 28 controls the limit pin 27 to extend, and one end of the limit pin 27 cooperates with the surface groove of the second pin support seat 271 fixed on the limit bracket 26. The second pin support seat 271 supports the limit pin 27 and protects the load-bearing platform in the lifting state. When the lifting cylinder 23 lifts the main frame to different heights, the second pin support seat 271 on the partition 262 of the corresponding height set on the limit bracket 26 can support the limit pin 27. The setting of the partitions 262 of different heights matches the lifting of the lifting cylinder 23 at different angles. When the piston rod of the lifting cylinder 23 retracts, the telescopic cylinder 28 controls the limit pin 27 to retract, and the load-bearing platform falls. The limit bracket 26 is welded and formed by channel steel, square steel, and steel plate.

[0057] Furthermore, the device also includes a rain seepage unit 2, which realizes a water supply function through a water supply tank 3 installed on the rear side of the main unit 1. The rain seepage unit 2 includes a rain mechanism, a side wall and an underground seepage mechanism, and a flooding water tank 7; the flooding water tank 7 is connected to the water supply tank 3 through a drain pipe 6, and the flooding water tank 7 is fixedly connected to the rear baffle frame 9.

[0058] As an optional embodiment, Figure 1As shown, the shower and water seepage unit 2 realizes the water supply function through the water supply tank 3 installed on the rear side of the main unit 1. The water supply tank 3 is placed on the water tank bracket 4. The side of the water supply tank 3 is connected to the water tank water supply pipe 5 for replenishing the water supply tank 3. The shower and water seepage unit 2 includes a shower mechanism, a side wall and underground water seepage mechanism and a flooding water tank 7.

[0059] As an optional embodiment, the shower mechanism is mainly to build a rainfall area in the test area to simulate the effect of artificial rainfall. The rainfall pipeline 29 is made of stainless steel pipe, and the rainfall points are arranged at a spacing of 500-800mm.

[0060] As an optional embodiment, refer to Figure 1 The overflow water tank 7 is connected to the water supply tank 3 through the drain pipe 6. The overflow water tank 7 is fixedly connected to the rear baffle 9. The water in the water supply tank 3 is released at the required flow rate. The water enters the overflow water tank 7 from the bottom through the drain pipe 6. After the flow is stabilized, it overflows the overflow water tank 7 with a width of 6000mm to realize the dam overtopping test. The maximum water flow rate of the dam overtopping simulation is 0.2m 3 / s, the simulation time is not less than 1 minute. The dam body overtopping function adopts the water tank arranged at the upper end of the equipment, and the gate-opening water release is realized. This method does not need to use a high-power pump group to achieve an overtopping of 0.2m 3 / s flow requirement, simple and convenient operation.

[0061] Furthermore, the shower mechanism includes a rainfall pipe 29 and a nozzle 30 arranged on the top of the main frame. The rainfall pipe 29 is connected to the water supply tank 3 through a water pipe, and the nozzle 30 is connected to the rainfall pipe 29.

[0062] As an optional embodiment, refer to Fig.11 The shower mechanism is provided with a rainfall pipeline 29 and a nozzle 30 at the top of the test area, and the water supply of the rainfall pipeline 29 is controlled by a switch valve 31. A water divider 32 and a filter 33 are also provided between the water supply tank 3 and the rainfall pipeline 29, which can divert and filter the water supply. The setting of the flow regulating valve 34 can adjust the flow of the water supply in real time, thereby controlling the rainfall, and the maximum rainfall can reach 400mm / 24h.

[0063] Furthermore, the side wall and underground water seepage mechanism include seepage pipes respectively arranged inside the rear baffle 9 and the base longitudinal frame 8, the seepage pipes are provided with a plurality of openings, and a filter net is wrapped on the seepage pipes.

[0064] As an optional embodiment, refer to Fig.12The side wall and underground water seepage mechanism includes a side wall water seepage pipeline 35 and an underground water seepage pipeline 36, which are arranged inside the rear baffle 9 and the base longitudinal frame 8, respectively. Specifically, a PPR pipe is arranged vertically, holes are opened on the pipe and a filter is wrapped to prevent sample particles from blocking the holes in the pipe. The pipe is connected to a flow meter for flow monitoring, and a special water outlet for pipe flushing is reserved for regular cleaning and maintenance. Sealant is applied to the connection between the two side baffles 10 and the rear baffle 9 and the base longitudinal frame 8 to prevent water seepage.

[0065] As an optional embodiment, the device also includes an electronic control unit, the main control unit of which is controlled by a computer, mainly controlling the hydraulic unit and collecting its data parameters, using the inclination sensor to collect the lifting angle of the load-bearing platform, and controlling the opening of the proportional valve to achieve the purpose of controlling the lifting of the lifting cylinder. The entire system is distributedly controlled and consists of a programmable controller, an acquisition system, and other parts. Centralized control and management are achieved by establishing a real-time link between the host computer and each control unit system.

[0066] The tilt angle of the load-bearing platform is measured by an inclination sensor, which is installed on the load-bearing platform and moves with the sensor. The sensor has an accuracy of 0.05°, a resolution of 0.001°, and a maximum frequency output of 100Hz.

[0067] As an optional embodiment, the device also includes a monitoring unit, which includes video, pressure, water level and flow rate detection of the entire supporting platform through a high-speed camera system, a pressure sensor, an impact force sensor and a flow rate monitor. The high-speed camera system has a continuous recording frame rate of ≥150fps, the maximum load of the pressure monitoring device is 5 tons, the maximum load of the impact force monitoring device is 5 tons, the water level monitoring range is not less than 2000mm, and the flow rate monitoring adopts the method of applying an ultrasonic flowmeter on the "Parshall trough", and the speed measurement range is not less than 0.05-10m / s.

[0068] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present disclosure (including the claims) is limited to these examples. Within the scope of the present invention, the above embodiments or technical features in different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0069] The embodiments of the present invention are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multifunctional bearing platform device for landslide test, characterized in that: The device comprises a host unit: The host unit includes a host frame, a lifting mechanism and a safety protection mechanism; The mainframe frame includes a base longitudinal frame and a baffle frame fixedly connected to the side of the base longitudinal frame, the baffle frame includes a rear baffle frame and two side baffle frames, the front side of the mainframe frame is open, and the bottom of the base longitudinal frame is fixedly connected to a transverse steel plate; The lifting mechanism is arranged on at least one side of the main frame close to the rear baffle frame, and is used to lift the main frame; The safety protection mechanism is arranged on at least one side of the rear end of the main frame, and the safety protection mechanism comprises a limit bracket, a limit pin and a telescopic oil cylinder, the limit pin is fixedly mounted on the rear end of the longitudinal skeleton of the base, the limit bracket comprises a support plate and at least one partition plate fixedly connected between two support plates, a second pin support seat is fixedly arranged on the partition plate, the telescopic oil cylinder controls the extension and retraction of the limit pin, and when the limit pin is extended, the limit pin is matched with a groove on the surface of the second pin support seat; It also includes a rainwater seepage unit, which realizes a water supply function through a water supply tank installed at the rear side of the main unit. The rainwater seepage unit includes a rain mechanism, a side wall and underground water seepage mechanism, and a flooding water tank; the flooding water tank is connected to the water supply tank through a water discharge pipeline, and the flooding water tank is fixedly connected to the rear baffle frame; The longitudinal frame of the base is formed by fixedly connecting longitudinal beams and connecting ribs; the upper part of the longitudinal frame of the base is fixedly connected to a load-bearing support plate, and a sealing gasket and a sealant are provided at the joint of the load-bearing support plate, and a steel plate strip is fixedly connected to the sealing gasket and the sealant.

2. The multifunctional load-bearing platform device for landslide test according to claim 1, characterized in that: The main frame also includes an upper crossbeam, and both ends of the upper crossbeam are fixedly connected to the baffle frames on both sides.

3. The multifunctional load-bearing platform device for landslide test according to claim 1, characterized in that: A plurality of transparent polycarbonate plates are installed inside the baffles on both sides, and polycarbonate plate pressure plates are fixed at the joints of the transparent polycarbonate plates.

4. The multifunctional load-bearing platform device for landslide test according to claim 3 is characterized in that: A ruler is installed on the transparent polycarbonate plate.

5. The multifunctional load-bearing platform device for landslide test according to claim 1, characterized in that: The lifting mechanism includes a bottom transverse beam, a lifting column and a lifting cylinder. The bottom transverse beam is fixedly connected to the transverse steel plate; the lower end of the lifting column is fixedly connected to the end of the bottom transverse beam, the upper end of the lifting column is hinged to the upper end of the lifting cylinder, and the lower end of the lifting cylinder is connected to the base bearing seat.

6. The multifunctional load-bearing platform device for landslide test according to claim 5, characterized in that: The lifting oil cylinder adopts a two-stage cylinder structure, the lifting oil cylinder piston rod is installed downward, and the lifting oil cylinder cylinder barrel is installed upward.

7. The multifunctional load-bearing platform device for landslide test according to claim 1, characterized in that: The shower mechanism comprises a rainfall pipeline and a nozzle arranged on the top of the main frame, the rainfall pipeline is connected to the water supply tank through a water pipe, and the nozzle is connected to the rainfall pipeline.

8. The multifunctional load-bearing platform device for landslide test according to claim 1, characterized in that: The side wall and underground water seepage mechanism include water seepage pipes respectively arranged inside the rear baffle frame and the longitudinal frame of the base, a plurality of openings are arranged on the water seepage pipes, and a filter net is wrapped on the water seepage pipes.

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