An indoor open-pit mine slope deformation test equipment under simulated rainfall conditions

Abstract

The present invention discloses an indoor open-pit mine slope deformation test equipment under simulated rainfall conditions, which comprises: a sealed test seat; a loading plate, which is transversely fixed inside the sealed test seat, and an ore sample is provided on the loading plate; exhaust blades, which are relatively rotatable and symmetrically arranged on both sides of the sealed test seat, and are used for ventilating the interior of the sealed test seat; a rainfall simulation component, which is relatively slidable and transversely suspended on the upper side of the interior of the sealed test seat; a lower drainage cavity, which is connected to the lower end face of the sealed test seat, a filter plate is transversely arranged in the sealed test seat, and a plurality of drainage pipes are arranged on the lower drainage cavity; an internal vibration transmission component, which is arranged on the loading plate and buried in the ore sample, and the internal vibration transmission component can provide internal multi-directional stress loading to the ore sample; and a recorder.

Description

Technical Field

[0001] The invention belongs to the technical field of slope deformation simulation experimental equipment, in particular to an open-pit mine slope deformation experimental equipment under indoor simulated rainfall conditions. Background Art

[0002] At present, among all kinds of natural disasters, landslides are among the biggest geological disasters, and rainfall is the main cause of geological disasters such as landslides and mud-rock flows. In my country, the losses caused by landslides caused by rainfall are very huge every year. Among them, it is very necessary to conduct simulated rainfall experiments and analysis on slopes with different rock and soil types and different slopes. However, at present, there are few test devices that can simulate the coupling effect of rainfall infiltration and slope stability, resulting in the inability to achieve a true restoration effect in the experimental simulation; in particular, most rainfall simulation equipment only uses direct nozzles. Although it can provide a relatively stable water supply spraying effect, the restoration degree is low and it is impossible to achieve a true rainfall restoration effect; at the same time, the internal stress changes of the open-pit mine cannot be restored in the experiment, and the experimental functional conditions are relatively simple;

[0003] Therefore, those skilled in the art provide an indoor open-pit mine slope deformation test device under simulated rainfall conditions to solve the problems raised in the above background technology. Summary of the Invention

[0004] To achieve the above object, the present invention provides the following technical solution: an indoor open-pit mine slope deformation test device under simulated rainfall conditions, comprising:

[0005] Sealed test seat;

[0006] A loading plate, transversely fixed inside the sealed experimental seat, wherein the ore sample is provided on the loading plate;

[0007] The exhaust blades are relatively rotatable and symmetrically arranged on both sides of the sealing test seat to ventilate the interior of the sealing test seat;

[0008] A rainfall simulation component is relatively slidably suspended laterally on the upper side of the sealed test seat, and the rainfall simulation component is capable of spraying water on the surface of the ore sample to simulate slope deformation under open-air rainfall;

[0009] A lower drainage chamber is connected to the lower end surface of the sealing test seat, a filter plate is horizontally arranged in the sealing test seat, and a plurality of drainage pipes are arranged on the lower drainage chamber;

[0010] an internal vibration transmission component, disposed on the loading plate and embedded in the ore sample, the internal vibration transmission component being capable of providing internal multi-directional stress loading to the ore sample; and

[0011] The recorder is set on one side of the sealed experimental seat and is used to record the deformation degree of the ore sample.

[0012] Furthermore, preferably, the rainfall simulation component includes:

[0013] A guide frame, transversely fixed to the inner upper side of the sealing test seat;

[0014] A transmission frame is vertically arranged on the guide frame so as to be relatively slidable, a transmission chain plate is installed on the guide frame, and one end of the transmission chain plate is connected to the transmission frame;

[0015] a fixing member, transversely fixed to one side of the transmission frame;

[0016] A water supply spraying device is relatively rotatably mounted on the fixing member and is in an inverted manner, wherein the spraying direction of the water supply spraying device is vertically upward; and

[0017] The water collecting plate frame is fixed on the transmission frame and is suspended just above the water supply spraying device.

[0018] Furthermore, preferably, the water supply injection device includes:

[0019] A central axis tube is rotatably arranged on the fixing member;

[0020] A driving gear seat is mounted on the fixing member, and an output end of the driving gear seat is connected to the central shaft tube for transmission through gear meshing;

[0021] An L-shaped transfer tube, one end of which is connected to the central axis tube and the other end of which is connected to an external water pump;

[0022] A receiving frame is fixed on the central axis tube, and an exhaust seat is rotatably provided on one side of the receiving frame; and

[0023] There are multiple water supply spray parts arranged in an array, and each of the water supply spray parts is vertically fixed on the receiving frame.

[0024] Furthermore, as a preference, a drainage cavity is provided in the water supply spray element, an inner pipe is vertically slidably provided in the drainage cavity, and a support spring is sleeved on the outer side of the inner pipe;

[0025] A baffle sleeve is fixed on the inner pipe in the drainage cavity, and a sealing ring is provided in the drainage cavity. The baffle sleeve can be sealed with the sealing ring when the inner pipe slides. A plurality of diversion nozzles are symmetrically connected to both sides of the drainage cavity.

[0026] A blocking piece is also provided in the drainage cavity, and the blocking piece can seal and block one end of the inner pipe. A diffuser nozzle is provided at the upper end of the water supply spray piece.

[0027] Furthermore, preferably, the water collecting plate frame includes:

[0028] External rack;

[0029] An inner mounting seat is transversely arranged in the outer frame, and two sides of the inner mounting seat are connected to the outer frame through a plurality of connecting springs;

[0030] An inner guide rod is transversely fixed in the inner mounting seat, and a plurality of top positioning members are slidably provided on the inner guide rod;

[0031] A hinge member is correspondingly provided on each of the top members, the hinge member is constructed into a two-section foldable structure with an X-shaped cross section, and the two ends of adjacent hinge members are hinged;

[0032] A telescopic guide rod is vertically fixed to the middle of the inner mounting seat, and both ends of the telescopic guide rod are connected to the connection points of the two hinge shafts located in the middle;

[0033] The lower elastic plate is laterally connected to the lower side of the inner mounting seat, and the lower elastic plate is in press contact with each of the top positioning members.

[0034] Furthermore, as an advantage, it also includes:

[0035] The driving seat is installed on both sides of the outer frame, and a convex shaft is rotatably provided on the outer frame. The driving seat is connected to the convex shaft through a transmission belt, and the convex shaft is in contact with the inner mounting seat. The cross-section of the top position piece is a teardrop-shaped structure, and the top position piece is set as a hollow structure, and an inflatable bag is also provided inside it.

[0036] Furthermore, preferably, the internal vibration transmission component includes:

[0037] Inner guide plate;

[0038] a plurality of vibration transmission rods arranged in an array, each of the vibration transmission rods being slidably disposed on the inner guide plate; and

[0039] The rotating disc is relatively rotatably arranged in the inner guide disc. A plurality of fixed support rods are hinged on the rotating disc, and one end of the fixed support rod is respectively connected to each of the vibration transmission rods.

[0040] Furthermore, as a preference, the vibration transmission rod is configured as a hollow rod structure, and a plurality of vibration motors are arranged inside the vibration transmission rod, an axis frame sleeve is sleeved on the outside of the vibration transmission rod at each vibration motor, and an external pressure seat is fixed to one end of the vibration transmission rod.

[0041] Compared with the prior art, the present invention has the following beneficial effects:

[0042] 1. In the present invention, a rainfall simulation component is slidably arranged in the sealed experimental seat. The rainfall simulation component can effectively restore the rainfall simulation effect of different intensities. At the same time, an internal vibration transmission component is also provided in the ore sample body to adjust the internal stress changes and improve the authenticity of the experimental data;

[0043] 2. In the rainfall simulation of the present invention, the upward spraying effect is achieved through multiple inverted water supply sprayers, so that the water droplets formed can fall freely after reaching a certain height, thereby avoiding the impact effect formed by direct injection, and the degree of restoration is relatively high. In particular, a water collection plate rack is also provided, which can assist the water supply sprayers to form different water droplet falling effects, thereby simulating the changes in rainfall levels in different seasons, and the credibility is relatively high; 3. The present invention is also provided with a recorder for real-time recording of the landslide process of the ore sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is a structural schematic diagram of the present invention;

[0045] Figure 2 Schematic diagram of the structure of the rainfall simulation component of the present invention;

[0046] Figure 3 It is a structural schematic diagram of the water supply injection device in the present invention;

[0047] Figure 4 It is a structural schematic diagram of the water supply spray element in the present invention;

[0048] Figure 5 It is a structural schematic diagram of the water collecting plate frame in the present invention;

[0049] Figure 6 Schematic diagram of the structure of the internal vibration transmission component in the present invention;

[0050] Figure 7 Schematic diagram of the structure of the vibration transmission rod in the present invention;

[0051] In the figure: 1 sealing test seat, 11 exhaust leaf, 12 filter plate, 13 recorder, 2 drain pipe, 3 internal vibration transmission component, 31 internal guide plate, 32 rotating disk, 33 fixed support rod, 4 rainfall simulation component, 41 guide frame, 42 transmission chain plate, 43 transmission frame, 44 fixing part, 5 water collecting plate frame, 51 outer frame, 52 inner mounting seat, 53 connecting spring, 54 top position part, 55 hinge shaft part, 56 inner guide rod, 57 lower elastic plate, 58 drive seat, 59 telescopic guide rod, 6 water supply spray device, 61 middle axis tube, 62 drive gear seat, 63 adapter pipe, 64 exhaust seat, 65 adapter pipe, 7 water supply spray part, 71 inner pipe, 72 support spring, 73 sealing ring, 74 diverter nozzle, 75 blocking part, 76 diffuser nozzle, 8 vibration transmission rod, 81 vibration motor, 82 outer pressure seat, 83 axis frame sleeve. DETAILED DESCRIPTION

[0052] See also Figure 1 In an embodiment of the present invention, an indoor open pit mine slope deformation test device under simulated rainfall conditions comprises:

[0053] Sealing test seat 1;

[0054] A loading plate, transversely fixed inside the sealing test seat 1, on which an ore sample is placed;

[0055] The exhaust blades 11 are rotatably arranged on both sides of the sealing test seat 1 to ventilate the interior of the sealing test seat 1;

[0056] A rainfall simulation component 4 is relatively slidably suspended laterally on the upper side of the interior of the sealing test seat 1. The rainfall simulation component 4 can spray water on the surface of the ore sample to simulate slope deformation under open-air rainfall;

[0057] The lower drainage chamber is connected to the lower end surface of the sealing test seat 1. A filter plate 12 is horizontally arranged in the sealing test seat 1, and a plurality of drainage pipes 2 are arranged on the lower drainage chamber; it is used to quickly discharge the water source sprayed in the rainfall simulation component;

[0058] An internal vibration transmission component 3 is arranged on the loading plate and embedded in the ore sample, and the internal vibration transmission component 3 can provide internal multi-directional stress loading to the ore sample; and

[0059] The recorder 13 is arranged on one side of the sealed experimental seat 1 and is used to record the deformation degree of the ore sample. A plurality of recorders can be arranged around to study the landslide changes under the back slope.

[0060] In this embodiment, the rainfall simulation component 4 includes:

[0061] A guide frame 41 is transversely fixed to the upper inner side of the sealing test seat 1;

[0062] The transmission frame 43 is vertically arranged on the guide frame 41 and can slide relative to it. The guide frame 41 is equipped with a transmission chain plate 42. One end of the transmission chain plate 42 is connected to the transmission frame 43. It is used to drive the guide frame to move horizontally.

[0063] A fixing member 44 is transversely fixed to one side of the transmission frame 43;

[0064] The water supply spraying device 6 is relatively rotatably mounted on the fixing member 44 and is disposed upside down. The spraying direction of the water supply spraying device 6 is vertically upward. In particular, the water supply spraying device can make the water droplets formed by it perform free fall motion when spraying upward, thereby improving the realism of rainfall reproduction and preventing the impact of the spray caused by direct spray from affecting the experimental data; and

[0065] The water collecting plate frame 5 is fixed on the transmission frame 43 and is suspended directly above the water supply injection device 6 .

[0066] As a preferred embodiment, the water supply injection device 6 includes:

[0067] The middle axis tube 61 is relatively rotatably arranged on the fixing member 44;

[0068] The driving gear holder 62 is mounted on the fixing member 55 , and the output end of the driving gear holder 62 is connected to the central shaft tube 61 through gear meshing.

[0069] The transfer tube 65 is constructed in an L-shaped structure, one end of which is connected to the central axis tube 61, and the other end of which is connected to an external water pump (not shown in the figure);

[0070] The receiving frame 63 is fixed on the central axis tube 61, and an exhaust seat 64 is rotatably provided on one side of the receiving frame 63; that is, the central axis tube is driven to rotate by the driving gear seat, thereby adjusting the distribution position of the exhaust seat relative to the ore sample, so as to achieve the effect of adjusting the rainfall wind direction in the rainfall simulation of the water supply injection device, with a high degree of realistic restoration, and

[0071] There are multiple water supply spray parts 7 arranged in an array, and each of the water supply spray parts 7 is vertically fixed on the receiving frame 63.

[0072] In this embodiment, a drainage cavity is provided in the water supply spray member 7, an internal pipe 71 is vertically slidably provided in the drainage cavity, and a support spring 72 is sleeved on the outside of the internal pipe 71;

[0073] A baffle is fixed on the inner pipe 71 in the drainage cavity. A sealing ring 73 is provided in the drainage cavity. The baffle can be sealed with the sealing ring 73 when the inner pipe 71 slides. A plurality of diversion nozzles 74 are symmetrically connected to both sides of the drainage cavity.

[0074] A sealing member 75 is also provided in the drainage cavity, and the sealing member 75 can seal one end of the internal pipe 71. A diffuser nozzle 76 is provided at the upper end of the water supply spray member 7. In particular, when the drainage rate in the water supply spray member is low, the internal pipe can be sealed at the end by the sealing member through the elastic force of the supporting spring, so that the diversion nozzles on both sides can directly spray upward and fall back onto the ore sample under the impact of the water collection plate, thereby forming a scattering effect of water droplets of different particle sizes, so as to simulate medium and high intensity rainfall; and when the drainage rate in the water supply spray member is high, at this time, the flow-blocking sleeve on the internal pipe can be sealed with the sealing ring under the sliding displacement of the internal pipe, and the diffuser nozzle performs an upward diffuser spray, so that the sprayed water droplets can converge on the water collection plate, and condense into the same particle size and then drip, so as to simulate low intensity rainfall.

[0075] In this embodiment, the water collecting plate frame 5 includes:

[0076] External frame 51;

[0077] An inner mounting seat 52 is disposed transversely within the outer frame 51 , with both sides of the inner mounting seat 52 connected to the outer frame 51 via a plurality of connecting springs 53 ;

[0078] An inner guide rod 56 is transversely fixed in the inner mounting seat 52 , and a plurality of top members 54 are slidably provided on the inner guide rod 56 ;

[0079] A hinge member 55 is correspondingly provided on each of the top members 54 , and the hinge member 55 is constructed as a two-section foldable structure with an X-shaped cross section, and the two ends of adjacent hinge members 55 are hinged;

[0080] A telescopic guide rod 59 is vertically fixed to the middle of the inner mounting seat 52, and both ends of the telescopic guide rod 59 are connected to the connection points of the two hinge shafts 55 located in the middle;

[0081] The lower elastic plate 57 is laterally connected to the bottom of the inner mounting seat 52. The lower elastic plate 57 is pressed and contacted with each of the top positions 54. The telescopic guide rod can drive the top positions to move synchronously through the hinge shaft under the action of vertical telescoping, and adjust the relative gap between the top positions. After the water supply sprayer completes the upward spraying, the water droplets can converge to the ends of each top position along the surface of the lower elastic plate, thereby forming water droplets of the same particle size.

[0082] In this embodiment, it also includes:

[0083] The driving seat 58 is installed on both sides of the outer frame 51. A convex shaft is rotatably provided on the outer frame 51. The driving seat 58 is connected to the convex shaft through a transfer belt, and the convex shaft is in contact with the inner mounting seat 52. The cross-section of the top positioner 57 is a water drop-shaped structure. The top positioner 57 is set as a hollow structure, and an inflatable bag is also provided inside it. In particular, the convex shaft can drive the inner mounting seat to move back and forth laterally by rotating the driving seat, so as to realize the irregular landing of each water drop. At the same time, the top positioner can form different tip effects through the expansion and contraction of the inflatable bag, so as to adjust the particle size of the water droplets when they converge and drip, thereby simulating different rainfall intensities.

[0084] As a preferred embodiment, the internal vibration transmission component 3 includes:

[0085] Inner guide plate 31;

[0086] There are multiple vibration transmission rods 8 arranged in an array, and each of the vibration transmission rods 8 is slidably disposed on the inner guide plate 31; and

[0087] The rotating disk 32 is arranged in the inner guide disk 31 so as to be relatively rotatable. A plurality of fixed support rods 33 are hinged on the rotating disk 32. One end of each fixed support rod 33 is respectively connected to each of the vibration transmission rods 8. That is to say, the rotating disk can drive the vibration transmission rods to move back and forth one by one under the action of rotation, thereby realizing internal vibration transmission of the ore sample.

[0088] In this embodiment, the vibration transmission rod 8 is configured as a hollow rod structure, and a plurality of vibration motors 81 are arranged inside the vibration transmission rod 8. An axis frame sleeve 83 is sleeved on the outside of the vibration transmission rod 8 at each vibration motor 81. An external pressure seat 82 is also fixed to one end of the vibration transmission rod 8. In particular, the vibration motor inside the vibration transmission rod can increase the internal vibration of a certain frequency, and transmit it to the ore sample body through the axis frame sleeve, thereby accelerating the experimental progress and improving the authenticity of the experimental data.

[0089] Specifically, the ore sample can take a triangular or trapezoidal shape, and the internal vibration transmission component is buried inside the ore sample. At this time, the rainfall simulation component can slide to the top of the ore sample in the lateral displacement, and the internal stress is adjusted by the vibration transmission rod by the rotation of the rotating disk at the same time. Then the water supply injection device can make the water droplets formed by it perform free fall motion when spraying upward, thereby improving the realism of rainfall restoration and avoiding the impact of the injection impact caused by direct injection on the experimental data; in particular, the water collection plate can also be used to assist the water droplets to converge, and condense into the same particle size and then drip, so as to simulate the effects of rainfall of different intensities with a higher degree of restoration.

[0090] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An indoor open pit mine slope deformation test equipment under simulated rainfall conditions, characterized by: include: Sealing test seat (1); A loading plate, transversely fixed inside the sealing experimental seat (1), wherein the loading plate is provided with an ore sample; Exhaust blades (11) are relatively rotatable and symmetrically arranged on both sides of the sealing test seat (1) for ventilating the interior of the sealing test seat (1); A rainfall simulation component (4) is relatively slidably suspended laterally on the upper inner side of the sealing test seat (1), and the rainfall simulation component (4) is capable of spraying water on the surface of the ore sample to simulate slope deformation under open-air rainfall; A lower drainage chamber is connected to the lower end surface of the sealing test seat (1), a filter plate (12) is transversely arranged in the sealing test seat (1), and a plurality of drainage pipes (2) are arranged on the lower drainage chamber; An internal vibration transmission component (3) is arranged on the loading plate and embedded in the ore sample, and the internal vibration transmission component (3) can provide internal multi-directional stress loading to the ore sample; A recorder (13) is provided on one side of the sealing experimental seat (1) and is used to record the degree of deformation of the ore sample; The rainfall simulation component (4) comprises: A guide frame (41) is transversely fixed to the upper inner side of the sealing test seat (1); A transmission frame (43) is vertically arranged on the guide frame (41) so as to be relatively slidable. A transmission chain plate (42) is mounted on the guide frame (41), and one end of the transmission chain plate (42) is connected to the transmission frame (43); A fixing member (44) is transversely fixed to one side of the transmission frame (43); A water supply spraying device (6) is relatively rotatably arranged and is inverted on the fixing member (44), and the spraying direction of the water supply spraying device (6) is vertically upward; The water collecting plate frame (5) is fixed on the transmission frame (43) and is suspended directly above the water supply spraying device (6).

2. The indoor open-pit mine slope deformation test equipment under simulated rainfall conditions according to claim 1, characterized in that: The water supply injection device (6) comprises: A central axis tube (61) is relatively rotatably arranged on the fixing member (44); A driving gear seat (62) is mounted on the fixing member (44), and an output end of the driving gear seat (62) is connected to the central axis tube (61) for transmission through gear meshing; A transfer tube (65) is constructed in an L-shaped structure, one end of the transfer tube (65) is connected to the central axis tube (61), and the other end is connected to an external water pump; A receiving frame (63) is fixed on the central axis tube (61), and an exhaust seat (64) is rotatably provided on one side of the receiving frame (63); There are multiple water supply spray parts (7) arranged in an array, and each of the water supply spray parts (7) is vertically fixed on the receiving frame (63).

3. The indoor open-pit mine slope deformation test equipment under simulated rainfall conditions according to claim 2, characterized in that: The water supply spray element (7) is provided with a drainage cavity, an internal pipe (71) is vertically slidably provided in the drainage cavity, and a support spring (72) is sleeved on the outside of the internal pipe (71); A flow-blocking sleeve is fixed on the inner pipe (71) in the drainage cavity, a sealing ring (73) is provided in the drainage cavity, and the flow-blocking sleeve can be sealed and matched with the sealing ring (73) when the inner pipe (71) slides and moves. A plurality of diversion nozzles (74) are symmetrically connected to both sides of the drainage cavity. A blocking piece (75) is also provided in the drainage cavity, and the blocking piece (75) can seal and block one end of the internal pipe (71). A diffuser nozzle (76) is provided at the upper end of the water supply spray piece (7).

4. The indoor open-pit mine slope deformation test equipment under simulated rainfall conditions according to claim 1, characterized in that: The water collecting plate frame (5) comprises: External frame (51); An inner mounting seat (52) is transversely arranged in the outer frame (51), and two sides of the inner mounting seat (52) are connected to the outer frame (51) via a plurality of connecting springs (53); An inner guide rod (56) is transversely fixed in the inner mounting seat (52), and a plurality of top positioning members (54) are slidably provided on the inner guide rod (56); A hinge member (55) is correspondingly arranged on each of the top members (54), and the hinge member (55) is constructed into a two-section foldable structure with an X-shaped cross section, and the two ends of adjacent hinge members (55) are hinged; A telescopic guide rod (59) is vertically fixed to the middle of the inner mounting seat (52), and both ends of the telescopic guide rod (59) are connected to the connection points of the two hinge shaft members (55) located in the middle; The lower elastic plate (57) is laterally connected to the lower side of the inner mounting seat (52), and the lower elastic plate (57) is in press contact with each of the top positioning members (54).

5. The indoor open-pit mine slope deformation test equipment under simulated rainfall conditions according to claim 4 is characterized by: The water collecting plate frame (5) further comprises: The driving seat (58) is installed at both sides of the outer frame (51). A convex shaft is rotatably provided on the outer frame (51). The driving seat (58) is connected to the convex shaft through a transmission belt, and the convex shaft is in contact with the inner mounting seat (52). The cross section of the top position member (54) is a water drop-shaped structure. The top position member (54) is set as a hollow structure and an inflatable bag is also provided inside.

6. The indoor open-pit mine slope deformation test equipment under simulated rainfall conditions according to claim 1, characterized in that: The inner vibration transmission component (3) comprises: Inner guide plate (31); A plurality of vibration transmission rods (8) are arranged in an array, and each of the vibration transmission rods (8) is slidably arranged on the inner guide plate (31); A rotating disc (32) is relatively rotatably arranged in the inner guide disc (31). A plurality of fixed support rods (33) are hinged on the rotating disc (32). One end of the fixed support rod (33) is respectively connected to each of the vibration transmission rods (8).

7. The indoor open-pit mine slope deformation test equipment under simulated rainfall conditions according to claim 6, characterized in that: The vibration transmission rod (8) is configured as a hollow rod body structure, and a plurality of vibration motors (81) are arranged in an array inside the vibration transmission rod (8). A shaft frame sleeve (83) is sleeved on each vibration motor (81) outside the vibration transmission rod (8), and an external pressure seat (82) is fixed to one end of the vibration transmission rod (8).

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