GB2614133A

GB2614133A - Terrain simulation device and tailing-pond model test system thereof

Info

Publication number: GB2614133A
Application number: GB2217584.8A
Authority: GB
Inventors: Zhang Liting; Wang Huiqing; Zhao Jiazhuang; Guo Jinsheng; Zhang Shaoxiong; Li Dongjie; Ma Wenjun; Liu Jianhui; Liu Yafan; Gu Jiaxian; Zhou Ding; Zhu Yapeng; Li Guangzhao; Song Cuijing; Xue Yuan
Original assignee: Shijiazhuang Hufu Eng Co Ltd; Shijiazhuang Tiedao University
Current assignee: Shijiazhuang Hufu Eng Co Ltd; Shijiazhuang Tiedao University
Priority date: 2022-11-24
Filing date: 2022-11-24
Publication date: 2023-06-28
Also published as: GB202217584D0

Abstract

A terrain simulation device and a tailing-pond model test system thereof are provided, belonging to the technical field of tailing-pond model test. The device includes supporters 31 distributed in an array. Each of the supporters includes a hydraulic telescopic cylinder (312, fig.6) and a support plate (315) connected to a movable end of the hydraulic telescopic cylinder. The hydraulic telescopic cylinder of each of the supporters is in communication with a common oil inlet pipeline via a corresponding one of inlet valves 32 and in communication with a common oil outlet pipeline via a corresponding one of outlet valves 33. The oil inlet pipeline and the oil outlet pipeline are in communication with a common oil storage tank 35, and a hydraulic pump 34 is provided between the oil inlet pipeline and the oil storage tank.

Description

TERRAIN SIMULATION DEVICE AND TAILING-POND MODEL TEST

SYSTEM THEREOF

TECHNICAL FIELD

10001.1 The present disclosure relates to the technical field of tailing-pond model test technology, and in particular relates to a terrain simulation device and a tailing-pond model test system thereof.

BACKGROUND ART

100021 Tailings pond refers to a place formed by damming to intercept the valley mouth or exclosure, and is used for stacking tailings or other industrial waste residues discharged after sorting metal or non-metallic ores. So, it is a huge source of dangerous at a high potential of debris flows, which is constructed artificially. Due to the danger of the dam break of the tailings pond, it has become a top priority for the safety of mines. However, the current research on the tailings pond is mostly concentrated on environmental pollution and stability analysis, while less research on the disaster of dam break of the tailings pond. Once the dam of the tailings pond is broken, it will cause huge disasters to the downstream. Therefore, flow evolution process for the dam-break mud of the tailings pond, and the calculation and analysis of the distribution law of stress field and flow field in the mud movement process are the key technologies of fluid mechanics development for the dam break of the tailings pond.

100031 In order to simulate the dam break process of the tailings pond, the model of the tailings pond need to be built. Most of the existing model of the tailings pond are built on a titled terrain at a fixed angle or a tiltable and reversible terrain to form a process of dam break. The real tailings pond are built in accordance with existing terrain which not only has the inclination but also has various undulating conditions. Therefore, the existing construction method for the model of the tailings pond cannot simulate the real process of dam break of the tailings pond, thereby resulting in inaccuracy of test data.

100041 For example, the Chinese Patent No. 101738333B discloses a slope-adjustable tailing-pond simulation test device which is provided with a simulation pond area. The pond dam of the simulation pond area is connected with a simulation cleugh. A jacking push rod is arranged at the bottom of the simulation pond area positioned at the tail of the pond and arranged on a hydraulic cylinder. A pond dam rotating shaft is arranged at the bottom of the simulation pond area positioned at the pond dam. The simulation pond area is articulated on a base of the pond area via the pond dam rotating shaft. The solution simulates the downstream cleugh with different orientations and slopes by controlling the jacking push rod to change the inclination angle of the simulation pond area. However, the terrain orientation of the simulation pond area itself does not simulate the real terrain, which ultimately results in inaccuracy of the test result.

100051 Further, the Chinese Patent Application Publication No. 110205977A discloses an experimental device for simulating dam break model of the tailings pond under complex conditions, including a support device, a water supply device, a rainfall device, a wind device, a lifting device, a dam stacking experimental device, an air pressure device, a water treatment device and a rainfall element deployment device. The dam stacking experimental device includes a detachable dam-building model box. The four corners of the bottom of the detachable dam-building model box are adjusted in height via hydraulic rods of the hydraulic device, which enables adjustment of different angles. However, the solution is not documented about how the terrain conditions of the specific construction of the tailings pond model are simulated.

10006] Therefore, how can simulate the valley peak, slope and terrain orientation of the terrain for a more accurate tailing-pond model test is a urgent technical problem to be solved.

SUMMARY

10007] The purpose of the present disclosure is to provide a terrain simulation device and a tailing-pond model test system thereof to solve the problems in the prior art above. The telescopic supporters are used to support the simulation stratum, and the heights of the supporters are adjusted by controlling the inlet valves and the outlet valves so as to realize undulating conditions of the simulation stratum. Therefore, the construction terrain conditions of the real tailings pond are simulated and more accurate test data is obtained.

10008] In order to achieve the above purpose, the present disclosure provides the following solution.

10009] The present disclosure provides a terrain simulation device, including supporters distributed in array, each of the supporters includes a hydraulic telescopic cylinder and a support plate connected to a movable end of the hydraulic telescopic cylinder; the hydraulic telescopic cylinder of each of the supporters is in communication with a common oil inlet pipeline via a corresponding one of inlet valves and in communication with a common oil outlet pipeline via a corresponding one of outlet valves, the oil inlet pipeline and the oil outlet pipeline are in communication with a common oil storage tank, and a hydraulic pump is provided between the oil inlet pipeline and the oil storage tank; the support plate of each of the supporters is connected to a corresponding one of support points of a simulation stratum, and different heights of the supporters are adjusted by controlling the inlet valves and the outlet valves so as to realize a terrain simulation with different undulating conditions.

10010] In some embodiments, the simulation stratum may include a waterproof layer, a felt layer and a rib mesh layer which are sequentially arranged from top to bottom, the rib mesh layer may be fixedly connected to the support plate of each of the supporters, and the waterproof layer may be configured for constructing a tailing-pond model.

10011] Tn some embodiments, each of the supporters may include a turnable part and a deflecting part, the turnable part may be connected between the movable end and the deflecting part, and the deflecting part may be connected between the turnable part and the support plate.

10012] In some embodiments, the turnable part may include a first base, a turnable ring gear rotatably provided on the first base, and a first locking rack hinged to the first base, the first locking rack may be configured for meshing with and locking the turnable ring gear, and the turnable ring gear may be configured for connecting the deflecting part.

10013] In some embodiments, the deflecting part may include a second base, a semicircular deflecting rack swingably provided on the second base, and a second locking rack hinged to the second base, the second locking rack may be configured for meshing with and locking the semicircular deflecting rack, and the semicircular deflecting rack may be configured for connecting the support plate.

100141 The present disclosure further discloses a tailing-pond model test system, including the terrain simulation device above mentioned, a water source, a water supply device and a recovery processing device, a water source, a water supply device and a recovery processing device. Water of the water source may be fed to the water supply device and applied to the terrain simulation device via the water supply device, a sand-water mixture out of the terrain simulation device may be transferred to the recovery processing device which separates the sand-water mixture into sand and the water, the separated sand may be reused in the terrain simulation device and the separated water may be returned to the water source.

100151 In some embodiments, the water supply device may include a water supply housing and a water storage tank provided within the water supply housing, a height of a tank wall of the water storage tank may be lower than a height of a housing wall of the water supply housing, and an overflow water space for accommodating overflow water may be provided between the water storage tank and the water supply housing, the water storage tank may be connected to a water outlet opening to an outside of the water supply housing, and the water supply housing may be provided with a water overflow opening which is in communication with the overflow water space.

100161 In some embodiments, a water distribution plate may be provided at an upper portion of the water storage tank, a baffle plate with a conical structure may be provided at an upper portion of the water supply housing, the baffle plate may be configured for shielding the overflow water space and guiding the water to the water distribution plate, and water distribution holes may be uniformly provided on the water distribution plate.

100171 In some embodiments, the recovery processing device may include a recovery housing and a mesh filter provided in the recovery housing, and the recovery housing may be provided with a recovery water outlet.

100181 In some embodiments, the mesh filter may include a coarse mesh and a fine mesh respectively provided on an inner layer and an outer layer of the mesh filter, first stirring blades may be arranged at an inner side of the coarse mesh and second stirring blades may be arranged between the coarse mesh and the fine mesh, the first stirring blades and the second stirring blades may be fixedly connected to a stirring shaft which penetrates through the recovery housing and is connected to a drive motor outside the recovery housing.

100191 The embodiments of the present disclosure achieve the following technical effects with respect to the prior art.

100201 In the embodiments of the present disclosure, the telescopic supporters are used to support the simulation stratum, and the heights of the supporters are adjusted by controlling the inlet valves and the outlet valves so as to realize undulating conditions of the simulation stratum. Therefore, the construction terrain conditions of the real tailings pond are simulated and more accurate test data is obtained.

100211 In the embodiments of the present disclosure, the turnable part and the deflecting part are provided to drive the movement of the support plate, which enables to adjust the tilt and rotation angle of the support plate in various direction, so that the support angle of the simulation stratum can be easily adjusted to achieve more accurate simulation of the terrain condition. In addition, the turnable part uses the first locking rack to lock the turnable ring gear and the deflecting part uses the second locking rack to lock the deflecting rack, so that the position of the turnable part and the deflecting part can be locked, thereby avoiding the condition changes caused by force on the simulation stratum and the support plate supporting the simulation stratum and affecting the simulation of the terrain slope.

100221 In the embodiments of the present disclosure, the water storage tank is disposed within the water supply housing. When the water is supplied into the water storage tank, it can be overflowed into the overflow water space after the water storage tank is filled, which will not cause water loss and waste. In addition, by providing the water distribution plate, it can ensure that the water flow may flow into the water storage tank to reduce the impact on the water in the water storage tank, in a case whether the height of the storage tank is to adjust or not. The water flow out of the water storage tang is stabilized, thereby avoiding the influence on the test. And thus, the baffle plate is enabled to constrain the water flow into the water storage tank smoothly.

100231 In the embodiments of the present disclosure, the mesh filter is provided in the recovery housing. The sand and the water are separated and further recovered and reused by providing the mesh filter. The graded recovery of both sand and gravel is achieved by providing the coarse mesh and the fine mesh, so the efficiency of recovery is improved, and the blockage of the mesh filter caused by single-stage recovery is avoided. And, the use of stirring blades for stirring further improves the filtering environment in the coarse and fine meshes, so as to better avoid the blockage of sand and gravel, and improve the efficiency of filtration.

BRIEF DESCRIPTION OF THE DRAWINGS

100241 To describe the technical solutions in the embodiments of the present disclosure or in the prior art more clearly, the following briefly introduces the accompanying drawings required for describing the embodiments. Apparently, the accompanying drawings in the following description show merely some embodiments of the present disclosure, and a person of ordinary skill in the art may still derive other drawings from these accompanying drawings without creative efforts.

100251 Fig. 1 is a flowchart of an operation of a system according to the embodiments of the present disclosure; 100261 Fig. 2 is a structural schematic diagram of a water supply device according to the embodiments of the present disclosure; 100271 Fig. 3 is a sectional diagram of an internal structure shown in Fig. 2; 100281 Fig. 4 is a schematic diagram of a terrain simulation device according to the embodiments of the present disclosure; 100291 Fig. 5 is a structural schematic diagram of the terrain simulation device showing terrain simulation according to the embodiments of the present disclosure; 100301 Fig. 6 is an overall structural schematic diagram of a supporter according to the

embodiments of the present disclosure;

100311 Fig. 7 is a structural schematic diagram of a deflecting part shown in Fig. 6; 100321 Fig. 8 is a structural schematic diagram of a turnable part shown in Fig. 6; 100331 Fig. 9 is a structural schematic diagram of a recovery processing device according to the embodiments of the present disclosure; and 100341 Fig. 10 is a sectional diagram of an internal structure shown in Fig. 9.

100351 Reference signs: 1 water source; 2 water supply device; 3 terrain simulation device; 4 recovery processing device; 5 simulation stratum; 100361 21 water supply housing; 22 water inlet; 23 water overflow opening; 24 water outlet; 25 baffle plate; 26 water distribution plate; 261 water distribution holes; 27 water storage tank; 28 support leg; 29 telescopic rod; 100371 31 supporter; 32 inlet valve; 33 outlet valve; 34 hydraulic pump; 35 oil storage tank; 100381 311 fixing base; 312 hydraulic telescopic cylinder; 3121 hydraulic inlet; 3122 hydraulic outlet; 313 turnable part; 314 deflecting part; 315 support plate; 100391 3131 first base; 3132 turnable ring gear; 3133 first locking rack; 3134 turnable connection base; 100401 3141 second base; 3142 deflecting rack; 3143 second locking rack; 3144 deflecting connection base; 100411 41 recovery housing; 42 recovery water outlet; 43 drive motor; 44 coarse mesh; 441 coarse mesh hole; 45 fine mesh; 451 fine mesh hole; 46 stirring shaft; 47 stirring blade.

DETAILED DESCRIPTION OF THE EMBODIMENTS

100421 The technical solutions according to the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings according to the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, but not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present disclosure.

100431 An object of the present disclosure is to provide a terrain simulation device and a tailing-pond model test system thereof to solve the problems in the prior art. The telescopic supporters are used to support the simulation stratum, and the heights of the supporters are adjusted by controlling the inlet valves and the outlet valves so as to realize the undulating conditions of the simulation stratum. Therefore, the construction terrain conditions of the real tailings pond are simulated and more accurate test data is obtained.

100441 In order to make the above objects, features and advantages of the present disclosure more apparent, the present disclosure will be further described in detail below with reference to the accompanying drawings and embodiments.

100451 As shown in Figs. 4 to 8, the present disclosure provides a terrain simulation device 3, including the supporters 31 distributed in array. For each of the supporters, the supporter 31 is installed on the table or ground through a fixing base 311. The supporter 31 includes a hydraulic telescopic cylinder 312 and a support plate 315 connected to a movable end of the hydraulic telescopic cylinder 312. The support plate 315 on the movable end is driven to move up and down through the telescopic action of the hydraulic telescopic cylinder 312, so as to realize adjustment of the support height of the support plate 315. The support plate 315 can be a round plate, a square plate, or in other shape, and is provided with through holes used for fixing simulation stratum 5. The hydraulic telescopic cylinder 312 is provided with a hydraulic inlet 3121 and a hydraulic outlet 3122, and the hydraulic inlet 3121 of each of the supporters is in communication with the common oil inlet pipeline via an inlet valve 32 and the hydraulic outlet 3122 of each of the supporters is in communication with the common oil outlet pipeline via an outlet valve 33. Each of the inlet valve 32 and the outlet valve 33 may be a solenoid valve which can be opened and closed via the control of the control device, so as to control the hydraulic oil lines. Further, a manual control valve can also be used to control the hydraulic oil lines by manual control, and the oil inlet and outlet pipelines connected to the same oil storage tank 35. Specifically, when the inlet valve 32 is open and the outlet valve 33 is closed, the hydraulic telescopic cylinder 312 can be performed an elongation action to lift up the support plate 315. When the inlet valve 32 is closed and the outlet valve 33 is open, the hydraulic telescopic cylinder 312 can be performed a contract action to lower down the support plate 315. A hydraulic pump 34 is provided between the oil inlet pipeline and the oil storage tank 35, and the hydraulic pump 34 is used to provide the hydraulic pressure required by the oil inlet pipeline, so as to power the elongation of the hydraulic telescopic cylinder 312. By providing the common oil inlet pipeline, the common oil outlet pipeline and the same oil storage tank 35, it is enabled to make the multiple supporters 31 share a common hydraulic system and simplify the arrangement of the hydraulic device. The support plate 315 is connected to various support points of the simulation stratum 5. By controlling the inlet valve 32 and the outlet valve 33, it can adjust the heights of various supporters 31 to realize the height change of the various points of the simulation stratum 5. Further, it can simulate the valley peak, slope and terrain orientation to realize the terrain simulation of different undulating conditions. The telescopic supporters 31 are used to support the simulation stratum 5, and the heights of the supporters 31 are adjusted by controlling the inlet valve 32 and the outlet valve 33 so as to realize the undulating conditions of the simulation stratum. Therefore, the construction terrain conditions of the real tailings pond are simulated, which enables more realistic working conditions when conducting tests. Further, more accurate test data is obtained.

100461 The simulation stratum 5 may include a waterproof layer, a felt layer, and a rib mesh layer which are sequentially arranged from top to bottom. The rib mesh layer is a of grid structure with a certain carrying capacity, which may be made of flexible metal material or nylon material and the like. After adjusting the height of each of the supporters 31, the rib mesh layer is fixed in the through holes formed in the support plate 315, which can be fixed with ties, bolts and other structures. The felt layer and waterproof layer are arranged sequentially above the rib mesh layer. The waterproof layer can be provided by painting or by laying plastic film and the like. After the waterproof layer is provided, the whole simulation terrain formed by the simulation stratum 5 under the support of the supporters 31 is built. Portions above the waterproof layer are used to build the tailing-pond model. When building the tailing-pond model, gravel chips and tailing sand can be used to fill and built on the constructed terrain (the waterproof layer) in layers until the design elevation of the tailing-pond model is reached.

100471 As shown in Fig. 6, the supporter 31 may further include a turnable part 313 and a deflecting part 314. The turnable part 313 is connected between the movable end of the the hydraulic telescopic cylinder and the deflecting part 314, and the deflecting part 314 is connected between the turnable part 313 and the support plate 315. The turnable part 313 can turn around a vertical axes of the supporter 31, and the deflecting part 314 can be deflected in a vertical plane in a pitching position. Through the cooperation of the turnable part 313 and the deflecting part 314, it can realize the adjustment of the tilt and rotation angle of the support plate 315 in each direction, so that it can easily adjust the support angle of the simulation stratum 5 and achieve a more accurate simulation of the terrain condition.

100481 Combined with Fig. 8, the turnable part 313 may include a first base 3131, a turnable ring gear 3132 rotatably provided on the first base 3131, and a first locking rack 3133 hinged to the first base 3131. The first base 3131 may be of a barrel structure, which is provided with an axial mounting hole. The turnable ring gear 3132 and a turnable connection base 3134 connected thereto are installed in the mounting hole to achieve the free rotation. Further, a rotating shaft may be provided between the turnable connection base 3134 and the turnable ring gear 3132, the rotating shaft is mounted in the mounting hole via a bearing to achieve support and rotation. The side wall of the first base 3131 is also provided with a strip-shaped hole corresponding to the position of the turnable ring gear 3132, and the first locking rack 3133 is hinged on one side of the strip-shaped hole and enabled to be rotatably snapped into the strip-shaped hole to mesh with and lock the turnable ring gear 3132. The turnable ring gear 3132 is connected to the deflecting connection base 3144 of the deflecting part 314 through the turnable connection base 3134 (each of the turnable connection base 3134 and the deflecting connection base 3144 may be provided to be of a flange structure which is connected with each other via bolts). Therefore, when the turnable ring gear 3132 is rotated, the deflection part 314 is rotated accordingly. After the turnable ring gear 3132 is locked, the deflection part 314 is then locked accordingly.

100491 Combined with Fig. 7, the deflecting part 314 may include a second base 3141, a semicircular deflecting rack 3142 swingably provided on the second base 3141, and a second locking rack 3143 hinged to the second base 3141 which has an arc-shaped turnable track. The deflecting rack 3142 may swing reciprocally within the turnable track, and may be provided with a limit structure for avoiding the deflecting angle of the deflecting rack 3142 from being too large to disengage the turnable track. The second base 3141 is hinged with a second locking rack 3143 at a position which corresponds to the mesh teeth on an inner arc side of the deflecting rack 3142, and the second locking rack 3143 may be rotatably snapped into the position of the mesh teeth of the deflecting rack 3142 so as to mesh with and lock the deflecting rack 3142. Two ends of the semicircular structure of deflecting rack 3142 both are connected to the support plate 315. So, when the deflecting rack 3142 is swung, the support plate 315 is swung accordingly. After the deflecting rack 3142 is locked, the support plate 315 is then locked accordingly.

100501 As shown in Fig. 1, the present disclosure also provides a tailing-pond model test system that may include a terrain simulation device 3 above mentioned, a water source 1, a water supply device 2, and a recovery processing device 4. A water of water source 1 may be fed to the water supply device 2 through a pipeline and applied to the tailing-pond model on the terrain simulation device 3 via the water supply device 2. The sand-water mixture, which is produced by washing the terrain simulation device 3 via the water or by the dam break of the tailing-pond model, is collected. Then, the sand-water mixture is transferred to the recovery processing device 4 which separates the sand-water mixture into the sand and the water. And, the separated sand may be reused to build the tailing-pond model in the terrain simulation device 3, and the separated water is returned to the water source 1 through the pipeline to avoid wasting water resources.

100511 As shown in Figs. 2 and 3, the water supply device 2 may include a water supply housing 21 and a water storage tank 27 provided within the water supply housing 21. The shapes of both the water supply housing 21 and the water storage tank 27 may be rectangular or circular. The water storage tank 27 is used as a main water storage tank and is capable of storing the water supplied for the test. The water storage tank 27 and the water supply hosing 21 are in a manner of internal and external barrels which is capable of sliding with each other. And the sliding contact position can be of sliding sealing structure such as sealing tape. In addition, in order to ensure the smooth sliding of the water storage tank 27, a guide structure may also be provided. Specifically, the water supply housing 21 can be fixed on the support legs 28. The number of support legs 28 is at least three so as to achieve stable support. An inner side of each of the support legs 28 is provided with a telescopic rod 29. One end of the telescopic rod 29 is hinged on the support leg 28, and the other end of the telescopic rod 29 is hinged on the water storage tank 27. With the telescopic movement of the telescopic rod 29, the height of the water storage tank 27 can be adjusted. By changing the height of the water storage tank 27, it is enabled to adjust the flow rate or pressure of the water outlet 24, so that the impact effect of various water flow parameters on the tailing-pond model can be obtained. In the whole range of adjustable height interval, the height of the tank wall of the water storage tank 27 is always lower than the height of the housing wall of the water supply housing 21. When the water inside the water storage tank 27 is full, it will overflow through the tank wall of the water storage tank 27. An overflow water space for accommodating overflow water is provided between the water storage tank 27 and the water supply housing 21. Therefore, during supplement the water into the water storage tank 27, the water is enabled to overflow into the overflow water space when the water storage tank 27 is full, which will not cause loss and waste of water. The water storage tank 27 is connected to the water outlet 24 which may be provided on the bottom of the conical structure at the bottom portion of the water supply housing 21, thereby playing the role of converging water flow. The water supply housing 21 is also provided with a water overflow opening 23 which is in communication with the overflow water space, and the water overflow opening 23 may be opened to the water source 1 to avoid the waste of water resources.

100521 Further, a water distribution plate 26 may be provided at the upper portion of the water storage tank 27, which is uniformly provided with water distribution holes 261. The upper portion of the water supply housing 21 is provided with a baffle plate 25 which is of a conical structure. The baffle plate 25 is formed into a shape similar to a funnel, which is enabled to be used for shielding the overflow water space and guiding the water supplied by the water source 1 to the water distribution plate 26. That is to say, the water is constrained to enter the water storage tank 27 smoothly, so as to avoid flowing to the overflow water space. With the adjustment of the height of the water storage tank 27, the height difference between the baffle plate 25 and the water storage tank 27 also increases. So, if the water distribution plate 26 is not provided, the water entering the water storage tank 27 will cause impact on the water inside the water storage tank 27, thereby affecting the stability of the water flowing out of the water outlet 24. The arrangement of the water distribution plate 26 can ensure that the impact on the water inside the water storage tank 27 is reduced while the water flow entering the water storage tank 27, which stabilizes the water flow that is discharged from the water outlet 24 and supplied to the tailing-pond model so as to avoid the influence on the test.

100531 As shown in Figs. 9 and 10, the recovery processing device 4 may include a recovery housing 41 and a mesh filter provided in the recovery housing 4L The sand-water mixture, which is produced from the terrain simulation device 3 during the test, is guided to the top of the mesh filter in the recovery processing device 4. Through the filtering effect of the mesh filter, the sand and gravel is trapped on the mesh filter, while the water is filtered into the space below the mesh filter. The recovery housing 41 is provided with a recovery water outlet 42, and the filtered water flows back to the water source 1 through the recovery water outlet 42. Thus, the arrangement of the mesh filter is enabled to separate the sand and the water smoothly to achieve recovery and reuse of the sand and the water.

100541 Further, the mesh filter may include a coarse mesh 44 and a fine mesh 45 respectively provided on the inner and outer layers of the mesh filter. The coarse mesh 44 is provided with coarse mesh holes 441 of larger apertures, mainly for trapping coarse sand of larger particle size. And, the fine mesh 45 is provided with fine mesh holes 451 of smaller apertures, mainly for trapping fine sand of smaller particle size. By the arrangement of the coarse mesh 44 and the fine mesh 45, it is enabled to achieve the graded recovery of sand and gravel. The efficiency of recovery is improved, and the blockage of the mesh filter easily caused by the single-stage recovery is avoided. The stirring blades 47 are arranged at an inner side of the coarse mesh 44, and arranged between the coarse mesh 44 and the fine mesh 45. The stirring blades 47 are detachably (the stirring blades 47 can rotate with the stirring shaft 46 after installation, and the stirring blades 47 can be removed by moving along the axial direction during being disassembled) connected to the stirring shaft 46 which penetrates through the recovery housing 41 and is connected to the drive motor 43 outside the recovery housing 41. By the stirring of the stirring blades 47, it is enabled to further improve the filtering environment inside the coarse mesh 44 and the fine mesh 45, so as to better avoid the sand and gravel from blocking the coarse mesh hole 441 or the fine mesh hole 451, which improves the filtering efficiency.

100551 The test process of the present disclosure in performing dam break test of the tailing-pond model is as follows.

100561 The system is prepared. First, the terrain simulation device 3 is built. Then the water supply device 2, the recovery processing device 4, and the water source 1 are connected on the basis of the built terrain simulation device 3.

100571 Specifically, during the building process of the terrain simulation device 3, the simulation terrain is first built. The height of each of the supporters 31 and the inclination angle of the support plate 315 of each of the supporters 31 at the corresponding one of the support points of the simulation stratum 5 are adjusted according to the height and alignment of the actual terrain. The rib mesh layer, the felt layer and the waterproof layer are sequentially laid on the supporter 31 from bottom to top. The rib mesh layer is mounted on the support plate 315 to complete the construction of the simulation terrain. Next, the tailing-pond model is built, and the rushed rock chips and tailing-pond sand are filled and built in layers on top of the built simulation terrain according to the prototype tailing-pond design drawings, until the design elevation of the tailing-pond model is reached, and the tailing-pond model is finished.

100581 The water supply device 2 is connected, the water storage tank 27 is adjusted to the set height, and the water source 1 is connected to the water inlet 22 of the water supply device 2. The water outlet 24 of the water supply device 2 is opened to the tailing-pond model, and the water overflow opening 23 of the water supply device 2 is connected to the water source 1.

100591 The recovery processing device 4 is connected, and the outlet of the terrain simulation device 3 for the sand-water mixture is connected to the inlet of the recovery processing device 4 (an opening above the coarse mesh 44). The recovery water outlet 42 of the recovery processing device 4 is connected to the water source 1. After the test, the coarse mesh 44 and the fine mesh 45 may be removed in sequence, and the filtered coarse and fine sand can be recycled.

100601 After the devices are connected, the dam break test of the tailing-pond model is performed. The measurement device may be used to measure the data of the debris flow during the dam break. It should be noted that the measurement device used and the measurement method used are prior art and will not be repeated herein. During the test, water is injected into the tailing-pond model via the water supply device 2. And the water level in the tailing-pond model is kept constant until the tailing-pond model is broken (before the dam break of the tailing-pond model, the slurry flowing into the recovery processing device 4 is mostly clear water and contains only a small amount of mud and sand; after the dam break of the tailing-pond model, the slurry flowing into the recovery processing device 4 is debris flow). Various debris flow data, such as mud depth and flow rate, is monitored from the beginning moment of dam break.

100611 The principle and embodiments of the present disclosure are illustrated by using specific examples in the present disclosure, and the description of the above embodiments is only used to help understand the method and core idea of the present disclosure. In addition, a person of ordinary skill in the art may make modifications to the specific implementations and application scopes according to the ideas of the present disclosure. In conclusion, the content of the description shall not be construed as limitations on the present disclosure.

Claims

WHAT IS CLAIMED IS: 1. A terrain simulation device, comprising supporters distributed in array, wherein each of the supporters comprises a hydraulic telescopic cylinder and a support plate connected to a movable end of the hydraulic telescopic cylinder; the hydraulic telescopic cylinder of each of the supporters is in communication with a common oil inlet pipeline via a corresponding one of inlet valves and in communication with a common oil outlet pipeline via a corresponding one of outlet valves, the oil inlet pipeline and the oil outlet pipeline are in communication with a common oil storage tank, and a hydraulic pump is provided between the oil inlet pipeline and the oil storage tank; the support plate of each of the supporters is connected to a corresponding one of support points of a simulation stratum, and different heights of the supporters are adjusted by controlling the inlet valves and the outlet valves so as to realize a terrain simulation with different undulating conditions.
2. The terrain simulation device according to claim 1, wherein the simulation stratum comprises a waterproof layer, a felt layer and a rib mesh layer which are sequentially arranged from top to bottom, the rib mesh layer is fixedly connected to the support plate of each of the supporters, and the waterproof layer is configured for constructing a tailing-pond model.
3. The terrain simulation device according to claim 1 or 2, wherein each of the supporters comprises a turnable part and a deflecting part, the turnable part is connected between the movable end and the deflecting part, and the deflecting part is connected between the turnable part and the support plate.
4. The terrain simulation device according to claim 3, wherein the turnable part comprises a first base, a turnable ring gear rotatably provided on the first base, and a first locking rack hinged to the first base, the first locking rack is configured for meshing with and locking the turnable ring gear, and the turnable ring gear is configured for connecting the deflecting part.
5. The terrain simulation device according to claim 3, wherein the deflecting part comprises a second base, a semicircular deflecting rack swingably provided on the second base, and a second locking rack hinged to the second base, the second locking rack is configured for meshing with and locking the semicircular deflecting rack, and the semicircular deflecting rack is configured for connecting the support plate.
6. A tailing-pond model test system, comprising a terrain simulation device according to any one of claims 1-5, a water source, a water supply device and a recovery processing device, wherein water of the water source is fed to the water supply device and applied to the terrain simulation device via the water supply device, a sand-water mixture out of the terrain simulation device is transferred to the recovery processing device which separates the sand-water mixture into sand and the water, the separated sand is reused in the terrain simulation device and the separated water is returned to the water source.
7. The tailing-pond model test system according to claim 6, wherein the water supply device comprises a water supply housing and a water storage tank provided within the water supply housing, a height of a tank wall of the water storage tank is lower than a height of a housing wall of the water supply housing, and an overflow water space for accommodating overflow water is provided between the water storage tank and the water supply housing, the water storage tank is connected to a water outlet opening to an outside of the water supply housing, and the water supply housing is provided with a water overflow opening which is in communication with the overflow water space.
8. The tailing-pond model test system according to claim 7, wherein a water distribution plate is provided at an upper portion of the water storage tank, a baffle plate with a conical structure is provided at an upper portion of the water supply housing, the baffle plate is configured for shielding the overflow water space and guiding the water to the water distribution plate, and water distribution holes are uniformly provided on the water distribution plate.
9. The tailing-pond model test system according to claim 6, wherein the recovery processing device comprises a recovery housing and a mesh filter provided in the recovery housing, and the recovery housing is provided with a recovery water outlet.
10. The tailing-pond model test system according to claim 9, wherein the mesh filter comprises a coarse mesh and a fine mesh respectively provided on an inner layer and an outer layer of the mesh filter, first stirring blades are arranged at an inner side of the coarse mesh and second stirring blades are arranged between the coarse mesh and the fine mesh, the first stirring blades and the second stirring blades are fixedly connected to a stirring shaft which penetrates through the recovery housing and is connected to a drive motor outside the recovery housing.