Tunnel anti-seismic simulation test device and test method

Abstract

The invention belongs to the technical field of tunnel anti-seismic testing, and particularly relates to a tunnel anti-seismic simulation testing device and method.The tunnel anti-seismic simulation testing device comprises a base, an electromagnetic vibration table is fixedly installed at the top of the base, and connecting plates are connected to the two sides of the top of the electromagnetic vibration table; the four corners of the top of the electromagnetic vibration table are each provided with a lifting assembly, and a pressure applying assembly is arranged among the four lifting assemblies. The pressure applying assembly comprises a frame body and a nylon cloth bag, and the nylon cloth bag is fixed to the bottom of the frame body. The pressure applying assembly can be driven to descend through the lifting assembly, so that the bottom of the nylon cloth bag can wrap the surface of the tunnel model, then the cloth bag is filled with gravel particles, and the gravel evenly distributed in the cloth bag and attached to the outer wall of the tunnel model is used for applying pressure to the tunnel; and the uniformity of pressure on the surface of the tunnel during vibration test can be improved, so that the test accuracy can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel seismic resistance testing, and in particular to a tunnel seismic resistance simulation testing device and a testing method. Background Art

[0002] Tunnels are engineering buildings buried in the ground. They are a form of human use of underground space. The structure of a tunnel consists of two parts: the main building and ancillary equipment. The main building consists of a tunnel body and a tunnel door. The ancillary equipment includes a car shelter, fire-fighting facilities, emergency communications, and drainage facilities. Long tunnels also have special ventilation and lighting equipment.

[0003] Earthquakes are mainly caused by fractures or dislocations of rock layers inside the earth's crust. When the rock layers inside the earth's crust are squeezed or stretched due to crustal movement, the strength of the rock layers exceeds the rock layers, and the rock layers will fracture or dislocate. During the fracture or dislocation of the rock layers, a large amount of energy will be released, forming seismic waves that propagate in all directions. When an earthquake occurs, it will cause damage to the building. In order to improve the earthquake resistance of the building, earthquake simulation tests are required.

[0004] Before the construction of existing tunnels, in order to test the earthquake resistance of the tunnel during use, simulation tests are often required, and corresponding simulation test devices are required. At present, in the process of dynamic simulation tests for tunnel earthquake resistance, a tunnel model is often made of building materials, and then fixed on a vibration table, and then pressure is applied to its surface, and a vibration test is performed using the vibration table. However, during the actual test, the simulation restoration degree is low. Although pressure is applied at multiple points on the tunnel surface, the actual tunnel is fully compressed, so the pressure is inaccurate during the vibration test, which will affect the accuracy of the test. For this reason, a new technical solution needs to be designed to solve the problem. Summary of the invention

[0005] The purpose of the present invention is to provide a tunnel seismic simulation test device and test method, which solves the problem that in the actual test process proposed in the background technology, the simulation restoration degree is low, and although pressure is applied to the tunnel surface at multiple points, the actual tunnel is under pressure all over, resulting in inaccurate pressure during vibration testing, which in turn affects the accuracy of the test.

[0006] To achieve the above object, the present invention provides the following technical solution: a tunnel seismic simulation test device, comprising a base, an electromagnetic vibration table is fixedly installed on the top of the base, and connecting plates are connected to both sides of the top of the electromagnetic vibration table;

[0007] The four corners of the top of the electromagnetic vibration table are each equipped with a lifting assembly, and a pressure assembly is arranged between the four lifting assemblies;

[0008] The pressure-applying assembly comprises a frame and a nylon bag, and the nylon bag is fixed to the bottom of the frame.

[0009] By adopting the above technical scheme, firstly, the tunnel model is prefabricated in advance, and then the tunnel model and the connecting plate are connected, and then the lifting component is used to drive the pressure component to descend, so that the nylon bag can fit the surface of the tunnel model, and the bottom of the nylon bag is evenly fitted to the outer wall of the tunnel model, and then the nylon bag is filled with gravel particles, so that the gravel particles are evenly distributed in the nylon bag, so that the evenly distributed gravel puts pressure on the tunnel model, and then the electromagnetic vibration table is started to drive the tunnel model to vibrate, so as to realize the seismic test of the tunnel model.

[0010] As a preferred embodiment of the present invention, the lifting assembly includes a vertical plate, which is fixed to the top of the electromagnetic vibration table. The inner side wall of the vertical plate is provided with a vertical groove. A screw motor is fixedly installed at the bottom of the inner cavity of the vertical groove. The outer end of the transmission shaft of the screw motor is fixedly connected to a first screw. The outer end of the first screw is rotatably connected to the top of the inner cavity of the vertical groove. The outer wall of the first screw is provided with an adaptive first screw slider, and the first screw slider is connected to the frame.

[0011] By adopting the above technical solution, the first screw can be driven to rotate by the screw motor, thereby driving the first screw slider to move up and down, thereby driving the frame to move up and down, and then driving the nylon bag to move up and down, thereby driving the nylon bag to fit the outer wall of the tunnel model.

[0012] As a preferred embodiment of the present invention, a pressing assembly is fixed to one side of the top of the base, and the pressing assembly includes a side plate, and the top side wall of the side plate is fixedly connected to the top plate through a cross plate, and an electric push rod is fixed at the middle of the top of the top plate, and the push rod of the electric push rod movably passes through the top plate and is fixedly connected to the movable plate, and a pressure plate is provided on the lower side of the movable plate, and springs are fixedly installed on the four sides of the top of the pressure plate, and the top of the spring is fixedly connected to the movable plate, and a vibration motor is fixed at the middle of the top of the pressure plate.

[0013] By adopting the above technical solution, when the gravel particles are introduced into the nylon bag, the movable plate is driven down by the electric push rod, so that the pressure plate can fit and press the gravel particles in the nylon bag to limit the position, and at the same time, the vibration motor can drive the pressure plate to vibrate, so that the gravel can be vibrated and compacted, which further improves the compactness of the gravel, thereby helping to avoid the gravel in the nylon bag from jumping during the vibration test, ensuring the fit of the gravel, and further improving the accuracy of the test.

[0014] As a preferred embodiment of the present invention, a slide groove is opened in the middle of the top of the electromagnetic vibration table, a dual-axis motor is fixed in the middle of the inner cavity of the slide groove, both ends of the dual-axis motor are fixedly connected with a second screw rod, the outer end of the second screw rod is rotatably connected to the inner wall of the slide groove, the outer wall of the second screw rod is mounted with an adaptive second screw rod slider, and the top of the second screw rod slider is fixedly connected to the connecting plate.

[0015] By adopting the above technical solution, the dual-axis motor can drive the second screw rods on both sides to rotate, thereby driving the second screw rod slider to slide, thereby adjusting the distance between the connecting plates on both sides, so as to adapt to the connection of models of different sizes.

[0016] As a preferred embodiment of the present invention, limit rods are fixed on both sides of the top of the movable plate, and the limit rods movably penetrate the top plate. The setting of the limit rods makes it convenient for the electric push rod to drive the movable plate to rise and fall with high stability.

[0017] As a preferred embodiment of the present invention, the outer wall of the first screw slider is fixedly connected with a fixing ring, and the outer wall of the frame is fixed with a positioning pin corresponding to the fixing ring. The positioning pin and the fixing ring are plugged in to achieve the connection between the frame and the first screw slider, so that the frame and the first screw slider are easily separated.

[0018] As a preferred embodiment of the present invention, a synchronous controller is fixedly installed on the top of the base, and the synchronous controller is configured to be electrically connected to the four screw motors, so that the four screw motors can be synchronously controlled to perform synchronous lifting.

[0019] As a preferred embodiment of the present invention, a plurality of evenly distributed connection blocks are fixed on the top of the connection plate, and connection holes are formed on the connection blocks.

[0020] The present invention also relates to a tunnel seismic simulation test method, comprising the following method steps:

[0021] S: Connect the tunnel model to the connecting plate on the top of the electromagnetic vibration table, and install the strain gauge, displacement sensor and acceleration sensor on the inner wall of the tunnel model;

[0022] S: Use the lifting assembly to drive the frame and the nylon bag down so that the nylon bag fits the surface of the tunnel model, and then fill the nylon bag with gravel particles;

[0023] S: When the gravel particles are introduced into the nylon bag, the electric push rod drives the movable plate to descend, so that the pressing plate can fit and press the gravel particles in the nylon bag to limit the position. At the same time, the vibration motor can drive the pressing plate to vibrate and compact the gravel particles. After compaction, the pressing plate fits the surface of the gravel particles.

[0024] S: Start the electromagnetic vibration table to generate vibration. The electromagnetic vibration table drives the model to vibrate. During the vibration process, the strain gauge, displacement sensor and acceleration sensor feed back the monitoring data to the computer terminal for storage.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The present invention can drive the pressure-applying component to descend through the lifting component, so that the bottom of the nylon bag can be wrapped on the surface of the tunnel model, and then fill the bag with gravel particles, so as to use the gravel evenly distributed on the outer wall of the tunnel model in the bag to apply pressure to the tunnel, which can help improve the uniformity of pressure on the tunnel surface during the vibration test, thereby helping to improve the accuracy of the test. At the same time, the nylon bag is used to contain the gravel, which can help prevent the gravel from scattering during the vibration test, thereby helping to avoid injuries to surrounding workers.

[0027] The crushed stone particles in the nylon bag can be pressed and limited by the pressing component, which is helpful to avoid the crushed stone in the nylon bag from jumping during the vibration test, ensuring the fit of the crushed stone, and further improving the accuracy of the test. At the same time, when the crushed stone is filled into the nylon bag, the vibration motor can drive the pressure plate to vibrate, so that the crushed stone can be vibrated and compacted, further improving the compactness of the crushed stone.

[0028] The dual-axis motor can drive the second screw sliders on both sides to slide, thereby adjusting the distance between the connecting plates on both sides, so that models of different sizes can be connected. At the same time, the nylon bag can be lifted and lowered by the lifting component to fit models of different sizes, thereby improving the adaptability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0030] Figure 1 It is a schematic diagram of the overall structure of a tunnel seismic simulation test device of the present invention;

[0031] Figure 2 It is a schematic diagram of the structure of a lifting assembly and a pressure assembly of a tunnel seismic simulation test device of the present invention;

[0032] Figure 3 This is a schematic diagram of the structure of an electromagnetic vibration table of a tunnel seismic simulation test device of the present invention;

[0033] Figure 4 A schematic diagram of the connection structure of a movable plate and a pressure plate of a tunnel seismic simulation test device of the present invention;

[0034] Figure 5 It is a schematic diagram of signal transmission of a tunnel seismic simulation test device of the present invention.

[0035] In the figure:

[0036] 1. Base;

[0037] 2. Synchronous controller;

[0038] 3. Mounting holes;

[0039] 4. Electromagnetic vibration table; 41. Connecting plate; 42. Connecting block; 43. Dual-axis motor; 44. Second screw rod; 45. Second screw rod slider;

[0040] 5. Lifting assembly; 51. Vertical plate; 52. Screw motor; 53. First screw; 54. First screw slider; 55. Fixed ring;

[0041] 6. frame; 61. nylon bag; 62. positioning pin;

[0042] 7. Side plate; 71. Horizontal plate; 72. Top plate; 73. Electric push rod; 74. Limit rod; 75. Movable plate; 76. Pressure plate; 77. Spring; 78. Vibration motor. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0044] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention 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 therefore cannot be understood as a limitation on the present invention.

[0045] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The models of electrical appliances provided in the present invention are only for reference, and different models of electrical appliances with the same functions can be replaced according to actual usage.

[0046] See also Figure 1-5The present invention provides a technical solution: a tunnel seismic simulation test device, comprising a base 1, an electromagnetic vibration table 4 is fixedly installed on the top of the base 1, and connecting plates 41 are connected to both sides of the top of the electromagnetic vibration table 4, and the electromagnetic vibration table 4 is used to provide a vibration environment for vibration simulation testing;

[0047] Lifting assemblies 5 are installed at the four corners of the top of the electromagnetic vibration table 4, and a pressure assembly is arranged between the four lifting assemblies 5, and the pressure assembly is used to uniformly pressurize the surface of the tunnel model;

[0048] The pressure-applying assembly includes a frame 6 and a nylon bag 61, and the nylon bag 61 is fixed to the bottom of the frame 6;

[0049] It should be understood that during the actual test, the tunnel model is first prefabricated in advance, and then the tunnel model and the connecting plate 41 are connected, and then the lifting assembly 5 is used to drive the pressure assembly to descend, so that the nylon bag 61 can fit the surface of the tunnel model, and the bottom of the nylon bag 61 is evenly fitted to the outer wall of the tunnel model, and then gravel particles are filled into the nylon bag 61, so that the gravel particles are evenly distributed in the nylon bag 61, so that the evenly distributed gravel puts pressure on the tunnel model, and then the electromagnetic vibration table 4 is started to drive the tunnel model to vibrate, so as to achieve seismic testing of the tunnel model, and at the same time, the nylon bag 61 is used to contain the gravel, which can help prevent the gravel from scattering during the vibration test, and thus help avoid harm to surrounding workers.

[0050] Specifically, it also includes a strain gauge, a displacement sensor and an acceleration sensor, and the signal output ends of the strain gauge, the displacement sensor and the acceleration sensor are connected to the signal input end of the computer terminal;

[0051] During the test, strain gauges, displacement sensors and accelerometers are installed on the inner wall of the tunnel model. During the vibration test, strain gauges, displacement sensors and accelerometers can be used to monitor various data of the tunnel model and feed them back to the computer terminal for storage.

[0052] Furthermore, a plurality of evenly distributed connection blocks 42 are fixed on the top of the connection plate 41 , and connection holes are provided on the connection blocks 42 . The setting of the connection holes makes it convenient to connect and fix with the tunnel model.

[0053] Furthermore, mounting holes 3 are provided at the four corners of the top of the base 1. The provision of the mounting holes 3 makes it convenient to install and fix the entire device.

[0054] like Figure 1 and 2As shown; the lifting assembly 5 includes a vertical plate 51, which is fixed to the top of the electromagnetic vibration table 4. The inner side wall of the vertical plate 51 is provided with a vertical groove, and a screw motor 52 is fixedly installed at the bottom of the inner cavity of the vertical groove. The outer end of the transmission shaft of the screw motor 52 is fixedly connected to a first screw 53, and the outer end of the first screw 53 is rotatably connected to the top of the inner cavity of the vertical groove. The outer wall of the first screw 53 is sleeved with an adapted first screw slider 54, and the first screw slider 54 is connected to the frame 6;

[0055] It should be understood that the screw motor 52 can drive the first screw 53 to rotate, thereby driving the first screw slider 54 to rise and fall, thereby driving the frame 6 to rise and fall, and then driving the nylon bag 61 to rise and fall, thereby driving the nylon bag 61 to fit the outer wall of the tunnel model.

[0056] Furthermore, a fixing ring 55 is fixedly connected to the outer wall of the first screw slider 54, and a positioning pin 62 is fixed to the outer wall of the frame 6 corresponding to the fixing ring 55. The positioning pin 62 and the fixing ring 55 are plugged into each other to achieve the connection between the frame 6 and the first screw slider 54, so that the frame 6 and the first screw slider 54 can be easily separated.

[0057] Furthermore, a synchronous controller 2 is fixedly installed on the top of the base 1. The synchronous controller 2 is configured to be electrically connected to the four screw motors 52, so that the four screw motors 52 can be synchronously controlled to rise and fall synchronously.

[0058] like Figure 1 and 3 As shown; a slide groove is provided in the middle of the top of the electromagnetic vibration table 4, a dual-axis motor 43 is fixed in the middle of the inner cavity of the slide groove, and both ends of the dual-axis motor 43 are fixedly connected with a second screw rod 44, the outer end of the second screw rod 44 is rotatably connected to the inner wall of the slide groove, and the outer wall of the second screw rod 44 is sleeved with an adapted second screw rod slider 45, and the top of the second screw rod slider 45 is fixedly connected to the connecting plate 41;

[0059] The dual-axis motor 43 can drive the second screw rods 44 on both sides to rotate, thereby driving the second screw rod slider 45 to slide, thereby adjusting the distance between the connecting plates 41 on both sides, so that it can adapt to the connection of models of different sizes, thereby improving the adaptability of the device.

[0060] like Figure 1 and 4As shown; a pressing assembly is fixed to one side of the top of the base 1, and the pressing assembly includes a side plate 7, and the top side wall of the side plate 7 is fixedly connected to a top plate 72 through a transverse plate 71, and an electric push rod 73 is fixed to the middle of the top of the top plate 72, and the push rod of the electric push rod 73 movably penetrates the top plate 72 and is fixedly connected to a movable plate 75, and a pressing plate 76 is arranged on the lower side of the movable plate 75, and springs 77 are fixedly installed on the four sides of the top of the pressing plate 76, and the top of the spring 77 is fixedly connected to the movable plate 75, and a vibration motor 78 is fixed to the middle of the top of the pressing plate 76;

[0061] When the gravel particles are introduced into the nylon bag 61, the movable plate 75 is driven down by the electric push rod 73, so that the pressure plate 76 fits and presses the gravel particles in the nylon bag 61 to limit the position, and the vibration motor 78 is started at the same time. The vibration motor 78 can drive the pressure plate 76 to vibrate, so that the gravel can be vibrated and compacted, and the spring 77 can amplify the vibration, so as to improve the compaction effect, further improve the compaction of the gravel, which is conducive to avoiding the gravel in the nylon bag 61 from jumping during the vibration test, ensuring the fit of the gravel, and further improving the accuracy of the test.

[0062] Furthermore, limiting rods 74 are fixed on both sides of the top of the movable plate 75, and the limiting rods 74 are movable and penetrate the top plate 72. The setting of the limiting rods 74 makes it convenient for the electric push rod 73 to drive the movable plate 75 to rise and fall with high stability.

[0063] A tunnel seismic simulation test method is specifically implemented as follows:

[0064] S1: Connect the tunnel model and the connecting plate 41 on the top of the electromagnetic vibration table 4, and install the strain gauge, displacement sensor and acceleration sensor on the inner wall of the tunnel model;

[0065] S2: using the lifting assembly 5 to drive the frame 6 and the nylon bag 61 to descend so that the nylon bag 61 is attached to the surface of the tunnel model, and then filling the nylon bag 61 with gravel particles so that the gravel particles are fully filled in the nylon bag 61;

[0066] S3: When the gravel particles are introduced into the nylon bag 61, the electric push rod 73 drives the movable plate 75 to descend, so that the pressing plate 76 can fit and press the gravel particles in the nylon bag 61, and at the same time, the vibration motor 78 can drive the pressing plate 76 to vibrate, so that the gravel particles are vibrated and compacted, and after the compaction, the pressing plate 76 fits the surface of the gravel particles;

[0067] S4: Start the electromagnetic vibration table 4 to generate vibration. The electromagnetic vibration table 4 drives the model to vibrate. During the vibration process, the strain gauge, displacement sensor and acceleration sensor feed back monitoring data to the computer terminal for storage.

[0068] In addition, the components included in the tunnel seismic simulation test device and test method of the present invention are all universal standard parts or components known to technical personnel in this field. Their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods. In the idle part of the device, all the above-mentioned electrical components, which refer to power elements, electrical components, and adapted monitoring computers and power supplies, are connected through wires. The specific connection means should refer to the following working principle. The electrical connection is completed in the working order of each electrical component. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and no longer explains the electrical control.

[0069] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0070] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A tunnel seismic simulation test device, comprising a base (1), characterized in that: An electromagnetic vibration table (4) is fixedly mounted on the top of the base (1), and connecting plates (41) are connected to both sides of the top of the electromagnetic vibration table (4); Lifting assemblies (5) are installed at the four corners of the top of the electromagnetic vibration table (4), and a pressure-applying assembly is arranged between the four lifting assemblies (5); The pressure-applying assembly comprises a frame (6) and a nylon bag (61), wherein the nylon bag (61) is fixed to the bottom of the frame (6).

2. A tunnel seismic simulation test device according to claim 1, characterized in that: The lifting assembly (5) comprises a vertical plate (51), wherein the vertical plate (51) is fixed to the top of the electromagnetic vibration table (4), and the inner side wall of the vertical plate (51) is provided with a vertical groove, and a screw motor (52) is fixedly installed at the bottom of the inner cavity of the vertical groove, and the outer end of the transmission shaft of the screw motor (52) is fixedly connected to a first screw (53), and the outer end of the first screw (53) is rotatably connected to the top of the inner cavity of the vertical groove, and the outer wall of the first screw (53) is sleeved with an adaptive first screw slider (54), and the first screw slider (54) is connected to the frame (6).

3. A tunnel seismic simulation test device according to claim 1, characterized in that: A pressing assembly is fixed to one side of the top of the base (1), and the pressing assembly comprises a side plate (7). The top side wall of the side plate (7) is fixedly connected to a top plate (72) via a transverse plate (71). An electric push rod (73) is fixed to the middle of the top of the top plate (72). The push rod of the electric push rod (73) movably passes through the top plate (72) and is fixedly connected to a movable plate (75). A pressing plate (76) is arranged on the lower side of the movable plate (75). Springs (77) are fixedly installed on four sides of the top of the pressing plate (76). The top of the spring (77) is fixedly connected to the movable plate (75). A vibration motor (78) is fixed to the middle of the top of the pressing plate (76).

4. A tunnel seismic simulation test device according to claim 1, characterized in that: A slide groove is provided in the middle of the top of the electromagnetic vibration table (4), a dual-axis motor (43) is fixed in the middle of the inner cavity of the slide groove, and both ends of the dual-axis motor (43) are fixedly connected to a second screw rod (44), the outer end of the second screw rod (44) is rotatably connected to the inner wall of the slide groove, the outer wall of the second screw rod (44) is sleeved with an adaptive second screw rod slider (45), and the top of the second screw rod slider (45) is fixedly connected to the connecting plate (41).

5. A tunnel seismic simulation test device according to claim 3, characterized in that: Limiting rods (74) are fixed on both sides of the top of the movable plate (75), and the limiting rods (74) are movably inserted through the top plate (72).

6. A tunnel seismic simulation test device according to claim 2, characterized in that: A fixing ring (55) is fixedly connected to the outer wall of the first screw slider (54), and a positioning pin (62) is fixed to the outer wall of the frame (6) at a position corresponding to the fixing ring (55).

7. A tunnel seismic simulation test device according to claim 2, characterized in that: A synchronous controller (2) is fixedly mounted on the top of the base (1).

8. The tunnel seismic simulation test device according to claim 1, characterized in that: A plurality of evenly distributed connection blocks (42) are fixed on the top of the connection plate (41), and connection holes are provided on the connection blocks (42).

9. The tunnel seismic simulation test device according to claim 1, characterized in that: The four corners of the top of the base (1) are all provided with mounting holes (3).

10. A tunnel seismic simulation test method, applicable to the tunnel seismic simulation test device according to claims 1-9, characterized in that: The method comprises the following steps: S1: Connecting the tunnel model to the connecting plate (41) on the top of the electromagnetic vibration table (4), and installing the strain gauge, displacement sensor and acceleration sensor on the inner wall of the tunnel model; S2: using the lifting assembly (5) to drive the frame (6) and the nylon bag (61) to descend so that the nylon bag (61) is attached to the surface of the tunnel model, and then filling the nylon bag (61) with crushed stone particles; S3: When the crushed stone particles are introduced into the nylon bag (61), the movable plate (75) is driven downward by the electric push rod (73), so that the pressing plate (76) is pressed and limited to the crushed stone particles in the nylon bag (61), and at the same time, the vibrating motor (78) can be used to drive the pressing plate (76) to vibrate, so as to compact the crushed stone particles, and after compaction, the pressing plate (76) is in contact with the surface of the crushed stone particles; S4: The electromagnetic vibration table (4) is started to generate vibration. The electromagnetic vibration table (4) drives the model to vibrate. During the vibration process, the strain gauge, displacement sensor and acceleration sensor feed back monitoring data to the computer terminal for storage.

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