Dangerous rock simulation test device

Abstract

The utility model discloses a dangerous rock simulation test device, which comprises a base assembly, a simulation rock mass, a vibration excitation module, a deformation driving module and a fluid applying system, and is characterized in that the simulation rock mass comprises a foundation bearing part arranged on the base assembly and a discrete rock mass unit detachably attached to the foundation bearing part; the gradient and the height of the foundation bearing part are variable; the vibration excitation module is connected with the base assembly and used for driving the base assembly to vibrate. The deformation driving module is connected with the foundation bearing part and is used for driving the foundation bearing part to generate deformation of gradient and height; and the fluid applying system is used for spraying the simulated rock mass. The dangerous rock simulation test device can simulate the change conditions of dangerous rocks under various factors, so that the authenticity of the experiment and the reliability of experimental data are improved.

Description

Technical Field

[0001] This utility model relates to the field of disaster prevention and control, specifically to a dangerous rock simulation test device. Background Technology

[0002] Rockfall is a key topic in geological hazard research, and its formation process is influenced by multiple factors, including geological structural deformation, external vibration, and hydraulic erosion. Currently, most simulation test devices for unstable rock masses can only simulate the effect of a single factor, making it difficult to realistically reproduce the complex stress conditions in the actual environment, resulting in discrepancies between experimental results and actual collapse mechanisms.

[0003] To address the aforementioned issues, there is an urgent need for an experimental device that integrates the three elements of geological deformation, vibration excitation, and hydraulic erosion, and possesses high-precision deformation adjustment, non-contact rock mass fixation, and multi-module collaborative control, in order to improve the realism of rockfall simulation and the reliability of experimental data. Utility Model Content

[0004] To address the shortcomings of existing technologies, the technical problem this invention aims to solve is to provide a rockfall simulation test device that can simulate the changes in rockfalls under various factors, thereby improving the realism of the experiment and the reliability of the experimental data.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a rockfall simulation test device, comprising:

[0006] Base assembly;

[0007] The simulated rock mass includes a base bearing portion disposed on the base assembly and discrete rock units that can be detached and attached to the base bearing portion, wherein the slope and height of the base bearing portion are variable;

[0008] A vibration excitation module, connected to the base assembly, is used to drive the base assembly to vibrate;

[0009] A deformation driving module, connected to the foundation support component, is used to drive the foundation support component to generate slope and height deformations; and

[0010] A fluid application system is used to spray the simulated rock mass.

[0011] Furthermore, the foundation support includes a base plate, a top plate, side plates, and a first elastic connector. The base plate is fixed to the base assembly. The base plate is circumferentially spaced with radially extending grooves. The top plate is spaced above the base plate. There are multiple side plates, which are circumferentially spaced between the base plate and the top plate. The top of the side plate is hinged to the top plate. The bottom of the side plate is provided with a slider, which is slidably connected to the groove. The discrete rock mass unit is attached to the outer surface of the side plate. Adjacent side plates are connected by the first elastic connector.

[0012] Furthermore, the discrete rock element and the lateral plate are magnetically connected by a magnetic connection structure.

[0013] Furthermore, the magnetic connection structure includes a magnetic source assembly disposed in the inner cavity of the side plate and a magnetic attraction fitting disposed in the discrete rock unit.

[0014] Furthermore, the deformation driving module includes a screw that passes through and is threadedly connected to the top plate and a rotary driving component connected to the screw, wherein the bottom end of the screw is rotatably connected to the bottom plate.

[0015] Furthermore, the vibration excitation module includes a second elastic connector and upper and lower vibration sources. There are at least three second elastic connectors, which are circumferentially spaced between the base plate and the base assembly. The upper and lower vibration sources are used to drive the base plate to move up and down in a gap manner.

[0016] Furthermore, the upper and lower vibration sources include a rotary power source and a cam. The rotary power source is used to drive the cam to rotate, and the working surface of the cam forms an intermittent contact transmission with the bottom surface of the base plate.

[0017] Furthermore, the fluid application system includes a water supply unit, a mounting plate, and multiple atomizing nozzles. The mounting plate is positioned above the simulated rock mass, and the multiple atomizing nozzles are spaced apart on the mounting plate for spraying water onto the simulated rock mass. The water supply unit is connected to all the nozzles for supplying and pressurizing water to all the nozzles.

[0018] Furthermore, it also includes a storage box with an opening at the top, and the base assembly is installed inside the storage box.

[0019] The beneficial effects of this utility model are:

[0020] When in use, the above-mentioned unstable rock simulation test device can drive the foundation bearing part to generate a preset slope / height through the deformation driving module, apply vibration load to the simulated rock mass through the vibration excitation module, and perform hydraulic erosion on the simulated rock mass through the fluid application system. Through the synchronous and asynchronous pressure of the above components or changes in the environment, the discrete rock unit is caused to collapse under composite stress.

[0021] Using the aforementioned unstable rockfall simulation test device, the multi-factor mechanism of unstable rockfall is realistically reproduced through the coupled loading of three elements: geological structure deformation, vibration excitation, and hydraulic erosion. The modular design allows the base components to be adapted to simulated rock mass components of different sizes, resulting in strong experimental scalability. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0023] Figure 1 A schematic diagram of a rockfall simulation test device provided in an embodiment of this utility model;

[0024] Figure 2 for Figure 1 The diagram shows the lifting operation of the cam in the simulated rockfall test device.

[0025] Figure 3 for Figure 1 A schematic diagram showing the change in the angle of the lateral plate in the simulated rockfall test device;

[0026] Figure 4 for Figure 1 A top view of the lateral plate in the simulated rockfall test device shown;

[0027] Figure 5 for Figure 1 A cross-sectional view of the discrete rock element in the simulated rockfall test device shown;

[0028] Figure label:

[0029] 100. Base assembly; 200. Simulated rock mass; 210. Foundation bearing unit; 211. Base plate; 212. Top plate; 213. Side plate; 214. First elastic connector; 220. Discrete rock element; 300. Vibration excitation module; 310. Second elastic connector; 320. Upper and lower vibration sources; 321. Rotational power source; 322. Cam; 400. Deformation drive module; 410. Screw; 420. Rotational drive component; 500. Fluid application system; 510. Water supply unit; 520. Mounting plate; 530. Atomizing nozzle; 600. Magnetic connection structure; 610. Magnetic source assembly; 620. Magnetic attraction component; 700. Storage box. Detailed Implementation

[0030] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the invention; therefore, the invention is not limited to the specific embodiments disclosed below.

[0031] Please see Figures 1 to 5 This utility model provides a dangerous rock simulation test device, including a base assembly 100, a simulated rock mass 200, a vibration excitation module 300, a deformation driving module 400, and a fluid application system 500.

[0032] Specifically, the simulated rock mass 200 includes a base support 210 mounted on a base assembly 100 and discrete rock units 220 detachably attached to the base support 210. The slope and height of the base support 210 are variable. A vibration excitation module 300 is connected to the base assembly 100 and is used to drive the base assembly 100 to vibrate. A deformation drive module 400 is connected to the base support 210 and is used to drive the base support 210 to generate slope and height deformation. A fluid application system 500 is used to spray the simulated rock mass 200.

[0033] In use, the deformation driving module 400 can drive the foundation bearing part 210 to generate a preset slope / height, the vibration excitation module 300 can apply vibration load to the simulated rock mass 200, and the fluid application system 500 can perform hydraulic erosion on the simulated rock mass 200. Through the synchronous or asynchronous pressure of the above components or changes in the environment, the discrete rock unit 220 is caused to collapse under composite stress.

[0034] Using the aforementioned unstable rock formation simulation test device, the multi-factor mechanism of unstable rock collapse is realistically reproduced through the coupled loading of three elements: geological structure deformation, vibration excitation, and hydraulic erosion. The modular design allows the base component 100 to be adapted to simulated rock mass components 200 of different sizes, resulting in strong experimental scalability.

[0035] In this embodiment, the foundation support 210 includes a bottom plate 211, a top plate 212, side plates 213, and a first elastic connector 214. The bottom plate 211 is fixed on the base assembly 100. The bottom plate 211 is circumferentially spaced with grooves extending radially. The top plate 212 is spaced above the bottom plate 211. There are multiple side plates 213, which are circumferentially spaced between the bottom plate 211 and the top plate 212. The top of the side plate 213 is hinged to the top plate 212. The bottom of the side plate 213 is provided with a slider, which can slide in connection with the groove. Discrete rock units 220 are attached to the outer surface of the side plates 213. Adjacent side plates 213 are connected by the first elastic connector 214.

[0036] In use, when the top plate 212 is displaced by the deformation driving module 400, the bottom end of the side plate 213 slides radially along the groove, and the first elastic connector 214 maintains structural stability through deformation energy storage.

[0037] By combining this radial chute with the first elastic connector 214, the slope shape can be continuously adjusted (concave-convex slope, stepped slope, etc.); the hinge allows for changes in the inclination angle of the lateral plate 213, accurately simulating the internal bedding displacement of the rock mass.

[0038] In this embodiment, the discrete rock mass unit 220 and the side plate 213 are magnetically connected by a magnetic connection structure 600. Of course, in other embodiments, the discrete rock mass unit 220 and the side plate 213 can also be connected by other means, such as bonding, or a recess is provided on the outer surface of the side plate 213, with part of the discrete rock mass unit 220 placed in the recess.

[0039] Specifically, the magnetic connection structure 600 includes a magnetic source assembly 610 disposed within the cavity of the side plate 213 and a magnetic attraction component 620 disposed within the discrete rock unit 220. The magnetic source assembly 610 can be an electromagnet or a permanent magnet. When it is an electromagnet, the magnetic force can be adjusted by regulating the current. When it is a permanent magnet, the magnetic force between it and the magnetic attraction component 620 can be changed by replacing it with a permanent magnet of different magnetic strength. The magnetic attraction component 620 is a magnetic component with opposite magnetic properties to the magnetic source assembly 610, such as a permanent magnet.

[0040] This magnetic non-contact fixing method avoids the influence of adhesives on the porosity of rock units, ensures the authenticity of hydraulic erosion, and also meets the requirements of strong vibration conditions.

[0041] In this embodiment, the deformation driving module 400 includes a screw 410 that passes through and is threadedly connected to the top plate 212, and a rotary driving component 420 connected to the screw 410. The bottom end of the screw 410 is rotatably connected to the bottom plate 211. The rotary driving component 420 can be a handwheel, or it can be a rotary motor or other mechanism that can drive the screw 410 to rotate.

[0042] When in use, rotating the screw 410 clockwise will push the top plate 212 upward, thereby driving the side plate 213 to expand radially and increasing the slope angle of the side plate 213; reversing the operation will restore the initial state.

[0043] By using this trapezoidal thread pair, micron-level deformation precision control can be achieved (e.g., 0.005mm displacement per revolution);

[0044] In this embodiment, the vibration excitation module 300 includes a second elastic connector 310 and upper and lower vibration sources 320. There are at least three second elastic connectors 310, which are circumferentially spaced between the base plate 211 and the base assembly 100. The upper and lower vibration sources 320 are used to intermittently drive the base plate 211 to move up and down. Specifically, the upper and lower vibration sources 320 include a rotary power source 321 and a cam 322. The rotary power source 321 drives the cam 322 to rotate, and the working surface of the cam 322 forms intermittent contact transmission with the bottom surface of the base plate 211. The rotary power source 321 can be any mechanism capable of driving the cam 322 to rotate.

[0045] When in use, when the cam 322 pushes the base plate 211 to lift periodically, the second elastic connector 310 rebounds after being compressed and storing energy, thus forming vertical vibration.

[0046] In this embodiment, the fluid application system 500 includes a water supply unit 510, a mounting plate 520, and multiple atomizing nozzles 530. The mounting plate 520 is positioned above the simulated rock mass 200, and the multiple atomizing nozzles 530 are spaced apart on the mounting plate 520 for spraying water onto the simulated rock mass 200. The water supply unit 510 is connected to all the atomizing nozzles 530 and is used to supply and pressurize water to all the atomizing nozzles 530. In a specific implementation, six atomizing nozzles 530 can be set in a hexagonal arrangement.

[0047] In a preferred embodiment, the device further includes a storage box 700 with an opening at the top, and a base assembly 100 installed inside the storage box 700.

[0048] The storage box 700 can hold back the sprayed liquid and the fallen discrete rock units 220 for easy subsequent use.

[0049] How to use the above-mentioned dangerous rock simulation test device:

[0050] In use, the vibration excitation module 300, deformation drive module 400 and fluid application system 500 can be activated individually or simultaneously to test the parameters of the discrete rock element 220 falling from the foundation support 210 and generate corresponding simulation experimental data.

[0051] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A simulated rockfall test device, characterized in that, include: Base assembly; The simulated rock mass includes a base bearing portion disposed on the base assembly and discrete rock units that can be detached and attached to the base bearing portion, wherein the slope and height of the base bearing portion are variable; A vibration excitation module, connected to the base assembly, is used to drive the base assembly to vibrate; A deformation driving module, connected to the foundation support section, is used to drive the foundation support section to generate slope and height deformation; and A fluid application system is used to spray the simulated rock mass.

2. The unstable rock simulation test device according to claim 1, characterized in that, The foundation support includes a base plate, a top plate, side plates, and a first elastic connector. The base plate is fixed to the base assembly. The base plate is provided with radially extending grooves at intervals around the circumference. The top plate is positioned above the base plate at intervals. There are multiple side plates, which are circumferentially connected between the base plate and the top plate. The top of the side plate is hinged to the top plate. The bottom of the side plate is provided with a slider, which is slidably connected to the groove. The discrete rock mass unit is attached to the outer surface of the side plate. Adjacent side plates are connected by the first elastic connector.

3. The unstable rock simulation test device according to claim 2, characterized in that, The discrete rock unit and the side plate are magnetically connected by a magnetic connection structure.

4. The unstable rock simulation test device according to claim 3, characterized in that, The magnetic connection structure includes a magnetic source assembly disposed in the inner cavity of the side plate and a magnetic attraction fitting disposed in the discrete rock unit.

5. The unstable rock simulation test device according to claim 2, characterized in that, The deformation drive module includes a screw that passes through and is threadedly connected to the top plate and a rotary drive component connected to the screw. The bottom end of the screw is rotatably connected to the bottom plate.

6. The unstable rock simulation test device according to claim 2, characterized in that, The vibration excitation module includes a second elastic connector and upper and lower vibration sources. There are at least three second elastic connectors, which are circumferentially spaced between the base plate and the base assembly. The upper and lower vibration sources are used to drive the base plate to move up and down in a gap.

7. The unstable rock simulation test device according to claim 6, characterized in that, The upper and lower vibration sources include a rotary power source and a cam. The rotary power source is used to drive the cam to rotate, and the working surface of the cam forms intermittent contact transmission with the bottom surface of the base plate.

8. The unstable rock simulation test device according to claim 1, characterized in that, The fluid application system includes a water supply unit, a mounting plate, and multiple atomizing nozzles. The mounting plate is positioned above the simulated rock mass, and the multiple atomizing nozzles are spaced apart on the mounting plate for spraying water onto the simulated rock mass. The water supply unit is connected to all the nozzles and is used to supply and pressurize water to all the nozzles.

9. The unstable rock simulation test device according to claim 1, characterized in that, It also includes a storage box with an opening at the top, and the base assembly is installed inside the storage box.

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