Variable bank slope model device for large vibration table river valley earth dam dynamic test

Abstract

The invention relates to the technical field of vibration test devices, and discloses a variable bank slope model device for a large vibration table river valley earth dam power test, which comprises a model box, the first fixing frame is arranged in the model box; the second fixing frame is arranged in the model box in a sliding mode, the second fixing frame slides in the first direction, and the first direction is the Y-axis direction of the model box; the pair of simulation plates are rotationally connected through a rotating shaft, the two ends of the rotating shaft are connected with the first fixing frame through fixing mechanisms correspondingly, a plurality of locking mechanisms are arranged at the ends, away from the rotating shaft, of the pair of simulation plates, the locking mechanisms are slidably connected with the second fixing frame, the locking mechanisms slide in the second direction, and the second direction is the X-axis direction of the model box; according to the invention, the bank slope angle can be flexibly adjusted according to different experiment requirements, so that a real river valley environment is more accurately simulated, and the reliability and effectiveness of an experiment result are improved.

Description

Technical Field

[0001] The invention relates to the technical field of vibration test devices, in particular to a variable bank slope model device used for dynamic testing of river valley earth dams on a large vibration table. Background Art

[0002] Large-scale shaking table tests play an important role in the field of earth dam engineering, and are used to evaluate the response and stability of earth dams under dynamic loads such as earthquakes. In these experiments, the design and construction of model devices are crucial to accurately simulate actual engineering conditions.

[0003] In traditional shaking table tests, the slope changes of simulated earth dams are often fixed and cannot be adjusted flexibly, which limits the study of the dynamic response of earth dams under different slope conditions. Summary of the invention

[0004] The object of the present invention is to provide a variable bank slope model device for dynamic testing of river valley earth dams using a large shaking table, aiming to solve or improve at least one of the above-mentioned technical problems.

[0005] To achieve the above object, the present invention provides the following solution: The present invention provides a variable slope model device for dynamic testing of river valley earth dams using a large shaking table, comprising:

[0006] Model box;

[0007] A first fixing frame is arranged in the model box;

[0008] A second fixing frame is slidably disposed in the model box, and the second fixing frame slides along a first direction, where the first direction is the Y-axis direction of the model box;

[0009] A pair of simulation plates are rotatably connected via a rotating shaft, and both ends of the rotating shaft are connected to the first fixing frame via fixing mechanisms respectively. A plurality of locking mechanisms are provided at one end of the pair of simulation plates away from the rotating shaft, and the locking mechanisms are slidably connected to the second fixing frame, and the locking mechanisms slide along a second direction, which is the X-axis direction of the model box.

[0010] Optionally, the second fixing frame includes:

[0011] a pair of stringers;

[0012] A plurality of cross beams are arranged between the pair of longitudinal beams, and a plurality of locking mechanisms are slidably arranged on the cross beams.

[0013] Optionally, the locking mechanism includes:

[0014] A first connecting member is slidably disposed on the crossbeam;

[0015] The second connecting member is arranged at the bottom of the first connecting member, and the second connecting member is rotatably connected to the simulation board.

[0016] Optionally, the fixing mechanism includes:

[0017] A fixed base, fixedly connected to the first fixing frame;

[0018] A fixed cover is arranged on the top of the fixed base, a restraining space is formed between the fixed cover and the fixed base, and the rotating shaft is arranged in the restraining space.

[0019] Optionally, a pair of simulation boards are each provided with a connecting sleeve at one end close to the rotating shaft, and the rotating shaft can be rotatably inserted into a plurality of the connecting sleeves.

[0020] Optionally, the first fixing frame is detachably connected to the model box via a plurality of first screws.

[0021] Optionally, both ends of the cross beam are detachably connected to a pair of longitudinal beams via second screws.

[0022] Optionally, the first connecting member is connected to the crossbeam via a third screw.

[0023] Optionally, the second connecting member is detachably connected to the first connecting member via a fourth screw.

[0024] Optionally, the fixing cover is detachably connected to the fixing base via a fifth screw.

[0025] The present invention discloses the following technical effects:

[0026] A pair of simulation plates are rotatably connected via a rotating shaft, and the angle between the pair of simulation plates can be adjusted. The bank slope angle can be flexibly adjusted according to different experimental requirements, thereby more accurately simulating the real river valley environment and improving the reliability and effectiveness of the experimental results.

[0027] The rotating shaft is connected to the first fixing frame through a fixing mechanism, and the simulation board is connected to the second fixing frame through a locking mechanism, which can ensure that the device remains stable during the experiment, reduce displacement or deformation caused by vibration or external force, and ensure the accuracy of the experimental data. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 It is a schematic diagram of the structure of the first fixing frame of the present invention;

[0031] Figure 3 It is a schematic structural diagram of a first fixing frame and a pair of simulation boards of the present invention;

[0032] Figure 4 It is a schematic diagram of the structure of a pair of simulation boards of the present invention;

[0033] Figure 5 It is a structural schematic diagram of the fixing mechanism of the present invention;

[0034] Figure 6 It is a structural schematic diagram of the locking structure of the present invention.

[0035] In the figure: 1. model box; 2. first fixing frame; 201. first screw; 3. fixing mechanism; 301. fixing base; 302. fixing cover; 303. fifth screw; 4. simulation board; 5. rotating shaft; 6. cross beam; 7. longitudinal beam; 8. second screw; 9. locking mechanism; 901. third screw; 902. first connecting piece; 903. second connecting piece; 904. fourth screw. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0038] Reference Figure 1-Figure 6 The present invention provides a variable bank slope model device for dynamic testing of river valley earth dams using a large shaking table, comprising:

[0039] Model box 1;

[0040] A first fixing frame 2 is arranged in the model box 1;

[0041] A second fixing frame is slidably disposed in the model box 1, and the second fixing frame slides along a first direction, where the first direction is the Y-axis direction of the model box 1;

[0042] A pair of simulation plates 4 are rotatably connected via a rotating shaft 5, and both ends of the rotating shaft 5 are respectively connected to the first fixed frame 2 via a fixing mechanism 3. A plurality of locking mechanisms 9 are provided at one end of the pair of simulation plates 4 away from the rotating shaft 5, and the locking mechanism 9 is slidably connected to the second fixed frame, and the locking mechanism 9 slides along a second direction, which is the X-axis direction of the model box 1.

[0043] A pair of simulation plates 4 are rotatably connected via a rotating shaft 5, and the angle between the pair of simulation plates 4 can be adjusted, so that the bank slope angle can be flexibly adjusted according to different experimental requirements, thereby more accurately simulating the real river valley environment and improving the reliability and effectiveness of the experimental results.

[0044] The rotating shaft 5 is connected to the first fixing frame 2 through the fixing mechanism 3, and the simulation board 4 is connected to the second fixing frame through the locking mechanism 9, which can ensure that the device remains stable during the experiment, reduce displacement or deformation caused by vibration or external force, and ensure the accuracy of the experimental data.

[0045] In one embodiment of the present invention, the second fixing frame comprises:

[0046] a pair of longitudinal beams 7;

[0047] A plurality of cross beams 6 are arranged between a pair of longitudinal beams 7 , and a plurality of locking mechanisms 9 are slidably disposed on the cross beams 6 .

[0048] A pair of longitudinal beams 7 are respectively abutted against the side walls of the model box 1, so that the direction of the pair of longitudinal beams 7 is limited by the model box 1, so that the second fixed frame can only slide in the Y-axis direction of the model box 1, avoiding misalignment of the second fixed frame. Multiple cross beams 6 and multiple locking mechanisms 9 can improve the connection stability between the pair of simulation boards 4.

[0049] In one embodiment of the present invention, the locking mechanism 9 comprises:

[0050] The first connecting member 902 is slidably disposed on the crossbeam 6;

[0051] The second connecting member 903 is disposed at the bottom of the first connecting member 902 , and the second connecting member 903 is rotatably connected to the simulation board 4 .

[0052] By sliding the first connecting member 902 on the crossbeam 6 , the second connecting member 903 drives the simulation board 4 to change its angle.

[0053] In one embodiment of the present invention, the fixing mechanism 3 comprises:

[0054] A fixed base 301, fixedly connected to the first fixed frame 2;

[0055] The fixed cover 302 is disposed on the top of the fixed base 301 . A restraining space is formed between the fixed cover 302 and the fixed base 301 . The rotating shaft 5 is disposed in the restraining space.

[0056] By snapping the fixing cover 302 onto the fixing base 301 , the fixing cover 302 and the fixing base 301 clamp the rotating shaft 5 , thereby limiting and fixing the end of the rotating shaft 5 .

[0057] In one embodiment of the present invention, a pair of simulation boards 4 are each provided with a connecting sleeve at one end close to the rotating shaft 5, and the rotating shaft 5 is rotatably inserted into a plurality of connecting sleeves.

[0058] In one embodiment of the present invention, the first fixing frame 2 is detachably connected to the model box 1 via a plurality of first screws 201 .

[0059] The first screw 201 facilitates the disassembly, assembly and adjustment of the first fixing frame 2 and the model box 1 .

[0060] In one embodiment of the present invention, both ends of the cross beam 6 are detachably connected to a pair of longitudinal beams 7 via second screws 8 .

[0061] The second screw 8 facilitates the disassembly, assembly and adjustment of the cross beam 6 and the longitudinal beam 7 .

[0062] In one embodiment of the present invention, the first connecting member 902 is connected to the crossbeam 6 via a third screw 901 .

[0063] The third screw 901 facilitates the disassembly, assembly and adjustment of the first connecting member 902 and the crossbeam 6 .

[0064] In one embodiment of the present invention, the second connecting member 903 is detachably connected to the first connecting member 902 via a fourth screw 904 .

[0065] The fourth screw 904 facilitates the disassembly, assembly and adjustment of the second connecting member 903 and the first connecting member 902 .

[0066] In one embodiment of the present invention, the fixing cover 302 is detachably connected to the fixing base 301 via a fifth screw 303 .

[0067] The fifth screw 303 facilitates the disassembly, assembly and adjustment of the fixing cover 302 and the fixing base 301 .

[0068] The slope adjustment can be completed by simply adjusting the third screw 901 and the first connecting member 902 as well as the fifth screw 303 and the fixing cover 302, which greatly shortens the experimental preparation time, improves the experimental efficiency, and enables researchers to focus more on data analysis and experimental observation.

[0069] Furthermore, a groove is provided on the second connecting member, an avoidance groove is provided on the simulation board, a connecting shaft is provided in the avoidance groove, the second connecting member is assembled in the avoidance groove, and the connecting shaft is rotatably provided in the groove.

[0070] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0071] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A variable slope model device for dynamic testing of river valley earth dams on a large shaking table, characterized in that: include: Model box (1); A first fixing frame (2) is arranged in the model box (1); A second fixing frame is slidably disposed in the model box (1), and the second fixing frame slides along a first direction, wherein the first direction is the Y-axis direction of the model box (1); A pair of simulation plates (4) are rotatably connected via a rotating shaft (5), and both ends of the rotating shaft (5) are connected to the first fixing frame (2) via fixing mechanisms (3). A plurality of locking mechanisms (9) are provided at one end of the pair of simulation plates (4) away from the rotating shaft (5), and the locking mechanisms (9) are slidably connected to the second fixing frame. The locking mechanisms (9) slide along a second direction, and the second direction is the X-axis direction of the model box (1).

2. A variable slope model device for dynamic testing of river valley earth dams using a large shaking table according to claim 1, characterized in that: The second fixing frame comprises: a pair of longitudinal beams (7); A plurality of cross beams (6) are arranged between a pair of longitudinal beams (7), and a plurality of locking mechanisms (9) are slidably arranged on the cross beams (6).

3. The variable slope model device for dynamic testing of river valley earth dams using a large shaking table according to claim 2 is characterized in that: The locking mechanism (9) comprises: A first connecting member (902) is slidably disposed on the crossbeam (6); The second connecting member (903) is arranged at the bottom of the first connecting member (902), and the second connecting member (903) is rotatably connected to the simulation board (4).

4. The variable slope model device for dynamic testing of river valley earth dams using a large shaking table according to claim 1 is characterized in that: The fixing mechanism (3) comprises: A fixed base (301) fixedly connected to the first fixed frame (2); The fixing cover (302) is arranged on the top of the fixing base (301), a restraining space is formed between the fixing cover (302) and the fixing base (301), and the rotating shaft (5) is arranged in the restraining space.

5. The variable slope model device for dynamic testing of river valley earth dams using a large shaking table according to claim 1 is characterized in that: A pair of simulation plates (4) are each provided with a connecting sleeve at one end close to the rotating shaft (5), and the rotating shaft (5) is rotatably inserted into a plurality of the connecting sleeves.

6. The variable slope model device for dynamic testing of river valley earth dams using a large shaking table according to claim 1 is characterized in that: The first fixing frame (2) is detachably connected to the model box (1) via a plurality of first screws (201).

7. The variable slope model device for dynamic testing of river valley earth dams using a large shaking table according to claim 2 is characterized in that: The two ends of the cross beam (6) are detachably connected to a pair of longitudinal beams (7) via second screws (8) respectively.

8. The variable slope model device for dynamic testing of river valley earth dams using a large shaking table according to claim 3 is characterized in that: The first connecting member (902) is connected to the crossbeam (6) via a third screw (901).

9. The variable slope model device for dynamic testing of river valley earth dams using a large shaking table according to claim 3 is characterized in that: The second connecting member (903) is detachably connected to the first connecting member (902) via a fourth screw (904).

10. The variable slope model device for dynamic testing of river valley earth dams using a large shaking table according to claim 4, characterized in that: The fixing cover (302) is detachably connected to the fixing base (301) via a fifth screw (303).

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