Rock slope model test device under action of multi-field coupling circulation

Abstract

The utility model provides a rock slope model test device under the action of multi-field coupling circulation, which comprises a slope model component, a vibration component, a dry-wet component and a control component, the slope model component is used for manufacturing and pressurizing a slope model, and the vibration component and the dry-wet component are used for adjusting various environments in a model box body. The influence of various daily environments on the side slope is simulated, the circulation time, the number of times, the size and the like of each environment simulation factor are controlled through the control module, automatic circulation is achieved, the environment conditions of single-factor and multi-factor coupling of temperature, rainfall, dry-wet circulation and vibration in the daily environment can be simulated, automatic circulation is achieved, and the test efficiency is improved. A model test condition is provided for simulating the erosion and damage rule of the rock slope under the action of factors such as rainfall erosion, dry-wet cycle and vibration of the rock slope under the multi-factor coupling environment condition, the test reliability and efficiency are improved, and the waste of human resources is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of slope model tests, and particularly relates to a rock slope model test device under the action of multi-field coupling and cycling. Background Technique

[0002] Rock slopes have various forms of geological elements, from steep mountain slopes and cliffs to deep excavations in mines and quarries. Their stability is crucial for the safety of people, buildings, and the environment. Mass movements in rock slopes, such as rockfalls, block topples, and landslides, can cause significant property damage, infrastructure disruptions, and even casualties in extreme cases. Moreover, the deformation and failure of slopes induced by the coupling action of multiple factors make it of great theoretical significance and engineering practical value to deeply study the instability laws of slopes under the coupling action of vibration, rainfall, wet-dry cycles, etc. for ensuring safety.

[0003] The slope model test device can well simulate the environmental scenarios under the action of multi-field coupling and reflect the whole process of slope failure. Therefore, scholars often conduct tests in the laboratory to simulate the cyclic action of multiple coupling environments to explore the performance of slope models. Among the similar patents for slope model test devices that can simulate the action of multi-field coupling, the Chinese invention patent application with the publication number CN117928863A proposes a shaking table model test device and a using method for low and gentle slopes under the coupling action of earthquake and rainfall. This scheme considers the influence of the coupling action of vibration and rainfall on slopes, but does not consider environments such as wet-dry cycles and does not realize the automatic cycle of the environment. Therefore, an automatic cycle slope model test device considering the combined action of common factors such as vibration, rainfall, wet-dry cycles, and temperature is of great significance, which can greatly improve the test efficiency and reduce the waste of human resources. Content of the Utility Model

[0004] The purpose of the utility model is to provide a slope model test device that can realize the automatic cycle of the erosion environment of the slope model under the action of a complex coupling environment in view of the deficiencies in the above background technique, so as to improve the test reliability and efficiency and reduce the waste of human resources.

[0005] To achieve the above purpose, the utility model provides a rock slope model test device under the action of multi-field coupling and cycling, including a slope model component, a vibration component, a wet-dry component, and a control component;

[0006] The slope model component includes a model box body, a horizontal loader, and a pressurizing system. A slope model is placed in the model box body, and the horizontal loader is arranged on one side of the model box body and is connected to the output end of the pressurizing system;

[0007] The vibration assembly is arranged below the model box body and includes a vibration table, a tabletop, upper support springs, a connecting rod, a drive coil, a coil holder, a fixed coil, and lower support springs. The tabletop is located at the top of the vibration table and supports the model box body. The upper support springs are arranged at the top of the vibration table and are connected to the tabletop. The coil holder is arranged at the bottom of the vibration table. The connecting rod is used to connect the tabletop and the coil holder. The drive coil is arranged on the coil holder. The fixed coil is arranged inside the vibration table. The lower support springs are arranged at the bottom of the vibration table and are connected to the coil holder;

[0008] The dry-wet assembly includes a bracket, a temperature control system, a rainfall port, a water supply pipe, a water supply container, a water pump, a regulating valve, and a flow meter. The bracket is arranged above the model box body and forms a closed whole above the model box body. The temperature control system and the rainfall port are arranged on the bracket at intervals. The temperature control system is used to monitor and adjust the temperature. The rainfall port is used to simulate rainfall in the model box body. The water supply pipe is communicated with the rainfall port and the water pump in the water supply container. The water supply container is filled with rainfall solution. The regulating valve and the flow meter are arranged on the water supply pipe and are used to adjust and read the flow rate respectively;

[0009] The control assembly is electrically connected to the pressurization system, the control parts of the drive coil and the fixed coil, the temperature control system, and the water pump respectively.

[0010] Further, the top surface of the model box body is made of stainless steel mesh material, the front surface is made of glass transparent material and can be opened and closed, and the other surfaces are made of aluminum alloy material and are sealed.

[0011] Further, a drain pipe is arranged at the bottom of the model box body, and a drain valve is arranged on the drain pipe.

[0012] Further, a coordinate grid is drawn on the front surface of the model box body to determine the size of the slope model.

[0013] Further, both the upper support springs and the lower support springs include a plurality of small-sized springs.

[0014] Further, both the drive coil and the fixed coil are wound with copper wires. The fixed coil passes direct current to form a constant magnetic field, and the drive coil passes alternating current to generate an electromagnetic induction force through the action of the magnetic field.

[0015] Further, the temperature control system includes a temperature control module and a temperature sensor. The temperature sensor is used to monitor the temperature inside and above the model box body, and the temperature control module is used to adjust the temperature.

[0016] Further, the control component includes an industrial control computer.

[0017] The above solution of the present utility model has the following beneficial effects:

[0018] The rock slope model test device under the action of multi-field coupling cycle provided in this embodiment realizes the production and pressurization of the slope model through the slope model component, and realizes the adjustment of various environments inside the model box through the vibration component and the dry-wet component, simulating the influence of various environments that the slope is usually subjected to. Through the control module, the cycle time, number of times, magnitude, etc. of various environmental simulation factors are controlled to achieve automatic cycling, and it can simulate the environmental conditions of single-factor and multi-factor coupling of temperature, rainfall, dry-wet cycle, and vibration under daily environment, and realize automatic cycling, providing model test conditions for simulating the erosion and failure laws of rock slopes under the action of factors such as rainfall erosion, dry-wet cycle, and vibration in a multi-factor coupling environment, improving the test reliability and efficiency, and reducing the waste of human resources;

[0019] Other beneficial effects of the present utility model will be described in detail in the subsequent specific implementation part. Description of the Drawings

[0020] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0021]

Description of the Reference Numerals

[0022] 10 - slope model component; 11 - model box; 12 - horizontal loader; 13 - pressurization system; 14 - slope model; 15 - drain pipe; 16 - drain valve; 17 - coordinate grid; 20 - vibration component; 21 - vibration table; 22 - tabletop; 23 - upper support spring; 24 - connecting rod; 25 - drive coil; 26 - coil holder; 27 - fixed coil; 28 - lower support spring; 30 - dry-wet component; 31 - bracket; 32 - temperature control system; 33 - rainfall port; 34 - water supply pipe; 35 - water supply container; 36 - water pump; 37 - regulating valve; 38 - flow meter; 40 - control component. Specific Embodiments

[0023] To make the technical problems, technical solutions and advantages to be solved by the present utility model clearer, the following will be described in detail with reference to the drawings and specific embodiments. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model. In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0024] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0025] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "coupling" should be understood in a broad sense. For example, it can be a locking connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] As Figure 1 shown, the embodiment of the present utility model provides a rock slope model test device under the action of multi-field coupling cycle, which includes a slope model component 10, a vibration component 20, a dry-wet component 30, and a control component 40. Among them, the slope model component 10 includes a model box body 11, a horizontal loader 12, and a pressurization system 13. The top surface of the model box body 11 is made of stainless steel mesh material, the front surface is made of glass transparent material and can be opened and closed, and the other surfaces are made of aluminum alloy material and sealed. The horizontal loader 12 is arranged on one side of the model box body 11 and is connected to the output end of the pressurization system 13 (which can adopt a small hydraulic press) (passing through the side wall of the model box body 11), and provides an initial stress for the slope model 14 through pressure transmission. A drain pipe 15 is arranged at the bottom of the model box body 11, and a drain valve 16 is arranged on the drain pipe 15, and the liquid in the model box body 11 is discharged by opening the drain valve 16.

[0027] As a preferred embodiment, a coordinate grid 17 is also drawn on the front surface of the model box body 11 in this embodiment to determine the size of the slope model 14.

[0028] In this embodiment, the vibration assembly 20 is arranged below the model box body 11 and includes a vibration table 21, a table top 22, upper support springs 23, connecting rods 24, drive coils 25, coil frames 26, fixed coils 27, and lower support springs 28. Among them, the table top 22 is located at the top of the vibration table 21 and is used to support the model box body 11. The upper support springs 23 are arranged at the top of the vibration table 21 and are connected to the table top 22. The coil frames 26 are arranged at the bottom of the vibration table 21. The connecting rods 24 are used to connect the table top 22 and the coil frames 26. The drive coils 25 are arranged on the coil frames 26, and the fixed coils 27 are arranged inside the vibration table 21. After being energized, the fixed coils 27 attract the drive coils 25. The lower support springs 28 are arranged at the bottom of the vibration table 21 and are connected to the coil frames 26. After the coils are energized, a magnetic field and an electromagnetic induction force are generated, causing the coil frames 26, the connecting rods 24, and the table top 22 to move. After power-off, they rely on the upper support springs 23 and the lower support springs 28 to reset, and high-frequency switching is used to generate vibrations for the model box body 11.

[0029] It should be noted that in this embodiment, both the upper support springs 23 and the lower support springs 28 include a plurality of small springs to provide uniform and stable elastic forces for the table top 22, the coil frames 26, etc.

[0030] It should be noted that in this embodiment, both the drive coils 25 and the fixed coils 27 are wound with copper wires. The fixed coils 27 are energized with direct current to form a strong constant magnetic field, and the drive coils 25 are energized with alternating current. Due to the action of the magnetic field, an electromagnetic induction force is generated on the drive coils 25, so that the drive coils 25 drive the table top 22 to vibrate up and down. The magnitudes of the vibration amplitude and the vibration frequency can be adjusted by adjusting the magnitude and frequency of the alternating current in the drive coils 25.

[0031] In this embodiment, the dry-wet assembly 30 includes a bracket 31, a temperature control system 32, a rainfall port 33, a water supply pipe 34, a water supply container 35, a water pump 36, a regulating valve 37, and a flow meter 38. Among them, the bracket 31 is arranged above the model box body 11 and forms a closed whole above the model box body 11. The temperature control system 32 and the rainfall port 33 are arranged on the bracket 31 at intervals. The temperature control system 32 includes a temperature control module and a temperature sensor. The temperature inside and above the model box body 11 is monitored by the temperature sensor and adjusted by the temperature control module. The rainfall port 33 is used to simulate rainfall inside the model box body 11. The water supply pipe 34 is made of a rubber hose and is connected to the rainfall port 33. The other end of the water supply pipe 34 is connected to the water pump 36 in the water supply container 35. The water supply container 35 is made of a stainless steel barrel and is used to store a sufficient amount of rainfall solution. The regulating valve 37 and the flow meter 38 are arranged on the water supply pipe 34 to adjust and read the flow rate.

[0032] As a preferred implementation manner, in this embodiment, the temperature control module uses a TCU refrigeration and heating module, and the temperature adjustment range is -30°C to 50°C.

[0033] In this embodiment, the control component 40 is respectively connected to the slope model component 10, the vibration component 20, and the dry-wet component 30, and can adjust and control some of the components that need to be controlled. Specifically, the pressure applied by the pressure system 13 is adjusted through the control component 40 to achieve the initial stress that is most consistent with the actual situation or the expected target. By adjusting the magnitude of different currents through the control component 40, different vibration amplitudes are achieved, including passing different magnitudes of direct current through the fixed coil 27 to achieve different intensities of magnetic fields, and passing different magnitudes of alternating current through the driving coil 25 to generate different magnitudes of electromagnetic induction forces. The rainfall is adjusted by controlling the regulating valve 37 and the flowmeter 38 through the control component 40, and the real situation and the expected situation can be simulated. At the same time, the control component 40 obtains the temperature value monitored by the temperature sensor and controls the temperature control module to adjust until the temperature in the model box 11 reaches the specified value.

[0034] As a preferred implementation manner, the control component 40 in this embodiment uses an industrial control computer to facilitate setting and adjusting the magnitude of the horizontal load of the slope, the vibration amplitude and frequency, the rainfall duration, the temperature magnitude, and the duration, etc.

[0035] Using the rock slope model test device under multi-field coupling provided in this embodiment, the production and pressurization of the slope model 14 are realized through the slope model component 10; various environmental regulations inside the model box 11 are realized through the vibration component 20 and the dry-wet component 30, simulating the influences of various environments that the slope is subjected to daily; and through the control module, the cycle time, number, magnitude, etc. of each environmental simulation plate are controlled to achieve an automatic cycle. Therefore, it is possible to simulate the environmental conditions of single-factor and multi-factor coupling of temperature, rainfall, dry-wet cycle, and vibration under daily environments, rely on the control component for control and achieve an automatic cycle, providing model test conditions for simulating the erosion and failure laws of rock slopes under the actions of factors such as rainfall erosion, dry-wet cycle, and vibration under multi-factor coupling environmental conditions.

[0036] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0037] The above embodiments only represent several implementation manners of the present application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A rock slope model test device under multi-field coupling cycle, characterized in that: It includes slope model component, vibration component, dry and wet component, and control component; The slope model assembly includes a model box, a horizontal loader, and a pressurizing system. The slope model is placed in the model box. The horizontal loader is arranged on one side of the model box and connected to the output end of the pressurizing system. The vibration assembly is arranged below the model box, and includes a vibration table, a table, an upper support spring, a connecting rod, a driving coil, a coil frame, a fixed coil, and a lower support spring. The table is located at the top of the vibration table and supports the model box. The upper support spring is arranged at the top of the vibration table and connected to the table. The coil frame is arranged at the bottom of the vibration table. The connecting rod is used to connect the table and the coil frame. The driving coil is arranged on the coil frame. The fixed coil is arranged inside the vibration table. The lower support spring is arranged at the bottom of the vibration table and connected to the coil frame. The dry-wet assembly includes a bracket, a temperature control system, a rainfall port, a water supply pipe, a water supply container, a water pump, a regulating valve and a flow meter. The bracket is arranged above the model box and forms a closed whole above the model box. The temperature control system and the rainfall port are arranged on the bracket at intervals. The temperature control system is used to monitor and adjust the temperature. The rainfall port is used to simulate rainfall in the model box. The water supply pipe is connected with the rainfall port and the water pump in the water supply container. The water supply container is filled with rainfall solution. The regulating valve and the flow meter are arranged on the water supply pipe and are used to adjust and read the flow rate respectively. The control component is electrically connected to the pressurizing system, the control parts of the driving coil and the fixed coil, the temperature control system, and the water pump respectively.

2. The rock slope model test device under multi-field coupling cycle according to claim 1 is characterized in that: The top surface of the model box body is made of stainless steel grid material, the front surface is made of glass transparent material and can be opened and closed, and the other surfaces are made of aluminum alloy material and are sealed.

3. The rock slope model test device under multi-field coupling cycle according to claim 1 is characterized in that: A drain pipe is also provided at the bottom of the model box, and a drain valve is provided on the drain pipe.

4. The rock slope model test device under multi-field coupling cycle according to claim 1 is characterized in that: A coordinate grid is also drawn on the front side of the model box to determine the size of the slope model.

5. The rock slope model test device under multi-field coupling cycle according to claim 1 is characterized in that: The upper support spring and the lower support spring each include a plurality of small-sized springs.

6. The rock slope model test device under multi-field coupling cycle according to claim 1 is characterized in that: The driving coil and the fixed coil are both wound with copper wires. A direct current is passed through the fixed coil to form a constant magnetic field, and an alternating current is passed through the driving coil to generate electromagnetic induction force through the action of the magnetic field.

7. The rock slope model test device under multi-field coupling cycle according to claim 1 is characterized in that: The temperature control system includes a temperature control module and a temperature sensor. The temperature sensor is used to monitor the temperature in and above the model box, and the temperature control module is used to adjust the temperature.

8. The rock slope model test device under multi-field coupling cycle according to claim 1 is characterized in that: The control component includes an industrial computer.

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