Model test system capable of simulating multi-direction-multi-angle fault dislocation

Abstract

The invention provides a model test system capable of simulating multi-direction-multi-angle fault movement. The model test system comprises a first test box body, a second test box body, a lifting device, a propelling device and a bottom supporting device. The device firstly determines a fault angle according to an actual model fault type, builds a model in a test box according to a roadbed model, and attaches a strain gauge to a monitoring point to monitor stress change. Then, the fault angle is simulated according to the adjusted angle, finally, the servo motor is started, the spiral propelling device and the spiral lifting device start to operate, and fault strike-slip and normal fault dislocation are simulated at the same time. The system establishes a high-speed railway roadbed near fault damage evaluation mechanism, has the advantages of being convenient to test, improving the experiment speed, simulating multi-angle and multi-direction faults and being capable of being repeatedly used, and can be popularized to field slope simulation tests.

Description

Technical Field

[0001] The present invention relates to the field of near-fault dislocation model tests for high-speed railway subgrades, and particularly to a model test system that can simulate multi-directional and multi-angle fault dislocations. Background Art

[0002] With the continuous improvement of China's high-speed passenger railway network, more and more railways need to cross faults. Due to the fault dislocation caused by crustal movement, the railway subgrades near the faults are deformed and damaged, which poses a hidden danger to the safe operation of the railways. Therefore, it is particularly important and urgent to study the failure mechanism of near-fault railway subgrades. At present, there are still some deficiencies in the test devices and methods for railway subgrade fault dislocations: First, the existing test devices can only simulate fault dislocations at fixed angles, resulting in single model test results and unable to meet the simulation requirements of different angles. Second, the existing test devices are complex to assemble, making the test process cumbersome and reducing the test efficiency. Third, the existing devices can only simulate the dislocation of a fault in a certain direction and cannot simulate multiple directions simultaneously. Therefore, in order to achieve the universality, simplicity of operation, and versatility of the test device, a model test system that can simulate multi-directional and multi-angle fault dislocations is invented. Summary of the Invention

[0003] In view of the above-mentioned problems, the present invention provides a model test system that can simulate multi-directional and multi-angle fault dislocations. It solves the problems of the influence of the three factors of the existing test device, namely, inability to achieve multi-angles, multi-directions, and cumbersome operation, on the simulation test.

[0004] In order to achieve the above-mentioned invention purpose, the technical solution adopted by the present invention is as follows:

[0005] Provide a model test that can simulate multi-directional and multi-angle fault dislocations, which includes: box one 1, box two 2, fan-shaped rotatable panel 3, rotating shaft 4, screw lifting device 5, servo motor one 6, transmission shaft 7, screw propulsion device 8, servo motor two 9, I-shaped support column 10, chute 11, pulley 12, channel steel 13, bolt 14, strain gauge 15, side mudguard 16, bottom mudguard 17, bottom plate 18.

[0006] The box one 1, fan-shaped rotatable panel 3, rotating shaft 4, channel steel 13, bolt 14, side mudguard 16, and bottom mudguard 17 form experimental box one.

[0007] The box two 2, fan-shaped rotatable panel 3, rotating shaft 4, channel steel 13, and bolt 14 form test box two.

[0008] The screw lifting device 5, servo motor one 6, and transmission device 7 form a lifting device.

[0009] The described screw propulsion device 8, the second servo motor 9, and the transmission device 7 form a propulsion device.

[0010] The described I-shaped support column 10, the chute 11, the pulley 12, and the bottom plate 18 form a bottom support device.

[0011] Furthermore, the fan-shaped rotatable panel 3 can change the angle by the rotating shaft 4. The lifted box body can slide along the fan-shaped rotatable panel 3.

[0012] Furthermore, the four groups of screw lifting devices 5 can be simultaneously driven by the second servo motor 9 through the transmission shaft 7 to realize the function of lifting the box body.

[0013] Furthermore, the screw propulsion device 8 is simultaneously driven by the second servo motor 9 through the transmission shaft 7 to realize the function of the box body moving forward and backward in a staggered manner.

[0014] Furthermore, the chute 11 is installed on the bottom 18, and the pulley 12 is installed at the bottom of the I-shaped support column 10 to play a supporting role when the box body slides.

[0015] Furthermore, the side mudguard 16 and the bottom mudguard 17 can prevent the soil body from leaking out of the box body through the gaps during the lifting and staggering processes.

[0016] Advantages of the present invention

[0017] 1. The fan-shaped rotatable panel can adjust any angle according to the simulation requirements, and the test box can move along the edge of the fan-shaped rotatable panel, thereby realizing the fault staggering.

[0018] 2. All the required materials are common materials, which are easy to purchase and simple to assemble, and can quickly build a model box.

[0019] 3. The lifting device at the bottom and the propulsion device on the side can simultaneously achieve the effect of strike-slip - normal fault, and can simulate the fault staggering in various situations. Description of the drawings

[0020] Figure 1 It is a three-dimensional view of the fault movement test system;

[0021] Figure 2 It is a three-dimensional view of the first box body 1;

[0022] Figure 3 It is a three-dimensional view of the second box body 2;

[0023] Figure 4 It is a three-dimensional view of the lifting device;

[0024] Figure 5 It is a three-dimensional view of the bottom device;

[0025] Figure 6 It is a three-dimensional view of the propulsion device.

[0026] In the description of the present invention, the orientation or positional relationship indicated by the terms "left side", "middle", and "one side" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and does not require the present invention to be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0027] As Figure 1 shown, reference numerals: box body one 1, box body two 2, fan-shaped rotatable panel 3, rotating shaft 4, screw lifting device 5, servo motor one 6, transmission shaft 7, screw propulsion device 8, servo motor two 9, I-shaped support column 10, chute 11, pulley 12, channel steel 13, bolt 14, strain gauge 15, side mudguard 16, bottom mudguard 17, bottom plate 18.

[0028] As Figure 2 shown: The box body one 1 is a triangular box body, composed of three layers of panels, and the outer two layers from the outside to the inside are provided with tracks. The two outer sides are provided with fan-shaped rotatable panels 3 as side walls and are provided with slide rails. The rotating shaft passes through the two outer layers of the box body and the slide rails on the fan-shaped rotatable panel 3. Side mudguards 16 are provided on both sides of the fan-shaped rotatable panel 3, and a bottom mudguard 17 is provided at the bottom of the box body one 1. The outside of the box body is fixed by channel steel 13 and bolts 14.

[0029] As Figure 3 shown: The box body two 2 is a triangular box body, composed of three layers of panels, and the outer two layers from the outside to the inside are provided with tracks. The two outer sides are provided with fan-shaped rotatable panels 3 as side walls and are provided with slide rails. The rotating shaft passes through the two outer layers of the box body and the slide rails on the fan-shaped rotatable panel 3. The outside of the box body is fixed by channel steel 13 and bolts 14.

[0030] As Figure 4 shown: Four groups of screw lifting devices 5 and a bottom servo motor one 6 and a transmission shaft 7 form a lifting device.

[0031] As Figure 5 shown: One side of the bottom plate is provided with three chutes 11, and pulleys 12 are installed at the bottom of the I-shaped support column 10.

[0032] As Figure 6 shown: Two groups of propulsion screw devices 8, a transmission shaft 7 and a servo motor two 9. Detailed implementation manners

[0033] In order to make the technical means, creative features, purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with the drawings and specific implementation manners.

[0034] The present invention provides a design solution: a model test system that can simulate multi-directional and multi-angle fault dislocation. A model test system that can simulate multi-directional and multi-angle fault dislocation is described in conjunction with the accompanying drawings: test box one, test box two, propulsion device, lifting device, and bottom device. The experimental box one is composed of the box one 1, the fan-shaped rotatable panel 3, the rotating shaft 4, the channel steel 13, the bolt 14, the lateral mudguard 16, and the bottom mudguard 17. The rotating shaft 4 can be rotated according to the angle required for the test, so that the fan-shaped rotatable panel 3 rotates. The test box two is composed of the box two 2, the fan-shaped rotatable panel 3, the rotating shaft 4, the channel steel 13, and the bolt 14. The rotating shaft 4 can be rotated according to the angle required for the test, so that the fan-shaped rotatable panel 3 rotates. The screw lifting device 5, the servo motor one 6, and the transmission device 7 form the lifting device. After the servo motor one 6 is started, the screw lifting device is driven to lift through the transmission device 7. The screw propulsion device 8, the servo motor two 9, and the transmission device 7 form the propulsion device. After the servo motor two 9 is started, the screw propulsion device 8 can be driven to move forward and backward through the transmission device 7. The I-shaped support column 10, the chute 11, the pulley 12, and the bottom plate 18 form the bottom support device. When the propulsion device is started, it can provide the direction and track for the sliding of the box body.

[0035] The test process is as follows: First, place the box one 1 on the screw lifting device 5, support the box body by the screw lifting device 5, place the box two 2 on the I-shaped support column 10, and rotate the rotating shaft 4 according to the angle required for the experiment, then the fan-shaped rotatable panel 3 rotates to the required angle. Subsequently, pile up the soil body and the roadbed model in the box, and attach strain gauges 15 at the positions to be monitored to monitor the deformation and stress of the roadbed. Finally, start the servo motor one 6 and the servo motor two 9 of the lifting device and the propulsion device respectively, and drive the screw lifting device 5 and the screw propulsion device 8 through the transmission shaft 7. As the screw lifting device 5 and the screw propulsion device 8 are started, the test box slides upward along the contact surface of the fan-shaped rotatable panel 3 of the test box one and the test box two, and the test box two starts to move forward and stagger along with the I-shaped support column, and finally realizes the simulation of the strike-slip - normal fault dislocation.

[0036] The above has introduced the technical solution provided by the present application in detail. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application. For those of ordinary skill in the technical field, the present application can be modified and improved, and these modifications and improvements are also included in the protection scope of the claims of the present application.

Claims

1. A model test system capable of simulating multi-directional and multi-angle fault dislocation. It is characterized in that: The model test box is composed of five parts: test box 1, test box 2, propulsion device, lifting device, and bottom support device.

2. A model test system capable of simulating multi-directional and multi-angle fault dislocation according to claim 1. It is characterized in that: Test box 1, sector rotatable panel 3, rotating shaft 4, channel steel 13, bolt 14, lateral mudguard 16, and bottom mudguard 17 form test box 1.

3. A model test system capable of simulating multi-directional and multi-angle fault dislocation according to claim 1. It is characterized in that: Test box 1, sector rotatable panel 3, rotating shaft 4, channel steel 13, and bolt 14 form test box 2.

4. A model test system capable of simulating multi-direction and multi-angle fault dislocation according to claim 1. It is characterized in that: The lifting device consists of a screw lifting device 5, a servo motor 6, and a transmission device 7.

5. A model test system capable of simulating multi-directional and multi-angle fault dislocations according to claim 1. It is characterized in that: The propulsion device consists of a screw propulsion device 8, a servo motor 5, and a transmission device 7.

6. A model test system capable of simulating multi-directional and multi-angle fault dislocations according to claim 1. It is characterized in that: The bottom support device is composed of I-shaped support columns 10, chutes 11, pulleys 12, and a bottom plate 18.

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