Full-process automatic multi-field coupling physical simulation test system

Abstract

The invention relates to the field of physical model test devices, and particularly discloses a full-process automatic multi-field coupling physical simulation test system which comprises a supporting seat, a machine body frame, a front counter-force beam plate, a first lifting mechanism and a position moving mechanism. The supporting seat is arranged in a ground storage groove of a detection place, the machine body frame is fixedly connected to the upper surface of the supporting seat, the front portion of the machine body frame is in an opening shape, the front counter-force beam plate covers the opening in the front portion of the machine body frame, and the front counter-force beam plate is connected with the first lifting mechanism; and the front counter-force beam plate is positioned above the storage tank. The position moving mechanism is located on the bottom face in the machine body frame, and the bottom face is flush with the ground of the detection site. According to the device, laying of the model material before the test and removing of the model material after the test can be achieved, complex manual labor is omitted, operation is more convenient and efficient, and the accuracy of the test result is effectively improved.

Description

Technical Field

[0001] The invention relates to the field of physical model test devices, and in particular to a full-process automated multi-field coupling physical simulation test system. Background Art

[0002] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention, and should not necessarily be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art.

[0003] With the rapid development of infrastructure construction in my country, my country has become the country with the largest scale and the most difficult underground engineering construction in the world. More and more underground projects are facing complex conditions such as high stress in deep places, rich water and gas, and their instability mechanism and safety control have become research difficulties and hotspots. In the face of nonlinear destruction or dynamic disasters of deep complex underground projects, physical simulation tests are important and effective scientific research methods. Physical model tests are simulation experiments based on the principle of similarity. They use scaled models to simulate engineering geological conditions and construction processes in the laboratory. They take into account the engineering rock mass and size effects. They have the advantages of image, intuitiveness, and reality, and are widely valued and applied by geotechnical engineering circles at home and abroad. The research and development of physical simulation test devices is the prerequisite for physical simulation tests. How to conduct physical simulation tests more efficiently and quickly to achieve the expected results requires the development of safe, efficient, and intelligent physical simulation test devices. However, in the process of multi-field coupled simulation tests, the most troubling problem is the laying of model materials before the test and the removal of model materials after the test, which consumes a lot of manpower and material resources and increases the danger of the test.

[0004] In response to the above problems, Chinese patent application number 201510894802.6 discloses an automated true triaxial intelligent assembly physical simulation test device system and test method. The top wall of the test system can be opened to connect the lifting components with slings to lift in and lift out the test specimens. The test device realizes the movement of model test specimens in and out, but the operation process is complicated and difficult to implement. Chinese patent application number 201310336255.0 discloses a true triaxial rock burst physical simulation test system for deep buried tunnels. The material base of the front and rear doors has a spring and ball combination structure. The test specimen can be installed and removed before and after the experiment. When installing the test specimen, the test specimen is hoisted and placed on the lower bearing plate of the material base, and pushed into the test device under the action of the ball. Similarly, it is pushed out after the test is completed. The movement of model test specimens in and out is realized, but this step is basically completed by manpower, and the hoisting process of the test specimen is easy to damage the test specimen; at the same time, only single-shaped tunnel excavation can be carried out. Chinese patent application number 201510890212.6 discloses a fully automatic intelligent assembly model test device system and test method. The front reaction wall of the test system can be closed and connected to the side reaction wall. The top beam can be automatically lifted and lowered by controlling the top beam lifting cylinder, and the guide frame can be automatically dragged out by controlling the horizontal dragging cylinder. The two work together to achieve automatic removal of model materials. The test device can realize automatic removal of internal model materials, but the structure is complex and difficult to operate.

[0005] In summary, some existing large-scale physical simulation test systems still have the following deficiencies: (1) When filling the model material, some devices need to be manually dismantled before the laying can be completed in the test system. This not only consumes a lot of manpower and material resources, but also has a small range of activities. It is impossible to accurately and quantitatively control the various physical and mechanical parameters of the test model, and the arrangement of sensors is not easy to carry out, resulting in a decrease in the accuracy of the test results.

[0006] (2) Although some test systems can realize the movement of test models in and out, their operation is complicated and requires a high degree of human involvement, which makes the test models easily damaged, affecting the test results and subsequent observations. Summary of the invention

[0007] The present invention proposes a fully automated multi-field coupled physical simulation test system, which can realize the laying of model materials before the test and the removal of model materials after the test, eliminating complicated manual labor, making the operation more convenient and efficient, and effectively improving the accuracy of the test results. Specifically, the technical solution of the present invention is as follows.

[0008] A fully automated multi-field coupling physical simulation test system includes: a support seat, a body frame, a front reaction beam plate, a first lifting mechanism, and a position moving mechanism. Wherein: the support seat is arranged in a ground storage slot at a testing site, the body frame is fixedly connected to the upper surface of the support seat, and the front of the body frame is open, the front reaction beam plate covers the front opening of the body frame, and the front reaction beam plate is connected to the first lifting mechanism, and the front reaction beam plate is located above the storage slot to store the front reaction beam plate after it is lowered. The position moving mechanism is located on the bottom surface of the body frame, and the bottom surface is flush with the ground of the testing site, so that the position moving mechanism can directly enter and exit the body frame.

[0009] Furthermore, after the front reaction beam plate descends into the storage tank, the upper end surface of the front reaction beam plate is flush with the ground of the detection site to facilitate the entry and exit of the position moving mechanism.

[0010] Furthermore, the first lifting mechanism includes: a mounting plate, an upper positioning member, a first drive motor, a lead screw, and a lower positioning member. Wherein: the mounting plate is fixed on the top surface of the body frame, the upper positioning member is fixed on the upper surface of the mounting plate, and the first drive motor is fixed on the upper positioning member. The lead screw is arranged vertically, and its upper end passes through the body frame, the mounting plate and the upper positioning member in sequence and is connected to the first drive motor, the lower end of the lead screw is rotatably connected to the lower positioning member, and the lower positioning member is fixedly connected to the lower part of the body frame. The two side surfaces of the front reaction beam plate are respectively threadedly connected to the two lead screws, so as to drive the front reaction beam plate to rise and fall by driving the lead screw to rotate.

[0011] Furthermore, columns are provided on both sides of the front reaction beam plate, and the inner side thereof has a vertically distributed groove, and the screw and the side ends of the front reaction beam plate are both located in the groove, so that the columns are utilized to provide a more stable reaction force for the front reaction beam plate.

[0012] Furthermore, the front reaction beam plate is a truss-type structure, and a threaded sleeve is fixed in its upper end surface. The lead screw passes through the threaded sleeve and the front reaction beam plate and is connected to the first drive motor, and the lead screw and the threaded sleeve are threadedly connected.

[0013] Furthermore, a first opening is provided on the plate surface of the front reaction beam plate to facilitate tunnel excavation.

[0014] Furthermore, the position moving mechanism includes: a horizontal pad, a sliding support frame, a wheel frame, a roller, a second driving motor, a second lifting mechanism and a supporting top plate. Wherein: the horizontal pad is fixed on the bottom surface of the body frame. The sliding support frame is a groove-type structure supported on the horizontal pad, the wheel frame is arranged in the groove body of the sliding support frame, the roller is rotatably fixed on the wheel frame, and the second driving motor is fixed on the outer wall of the wheel frame and connected to the roller to drive the roller to rotate. The second lifting mechanism is fixed on the top surface of the wheel frame, the supporting top plate is horizontally fixed on the second lifting mechanism, and the supporting top plate is fixedly connected to the lower surface of the top surface of the groove body of the sliding support frame, so that the sliding support frame is driven to rise and fall by the second lifting mechanism.

[0015] Furthermore, a guide mechanism formed by a guide tube and a guide rod is provided on the top surface of the wheel frame, wherein: the guide tube is vertically fixed on the top surface of the wheel frame, the lower end of the guide rod is inserted into the upper end of the guide tube and the two are slidably connected, and the upper end of the guide rod is fixedly connected to the support top plate, so that the sliding support frame is lifted more stably during the lifting process.

[0016] Further, the upper surface of the horizontal pad is provided with a guide rail groove, and the lower wheel surface of the roller is located in the guide rail groove. Preferably, the upper end surface of the front reaction beam plate is provided with a guide groove corresponding to the guide rail groove. When the front reaction beam plate is lowered until its upper end surface is flush with the ground, the rear end of the guide groove is aligned with the guide rail groove, and the front end of the guide groove is in a bell-mouth shape.

[0017] Furthermore, it also includes a model box for laying the model to be tested, which is placed on the upper surface of the position moving mechanism, and the top surface of the model box can be opened.

[0018] Furthermore, the front wall surface of the model box has a second opening.

[0019] Furthermore, the two side walls, the top surface and the rear wall of the model box are provided with load loading rods, one end of which passes through the through hole on the model box and penetrates into the inner cavity thereof. A sealing sleeve is provided between the load loading rod and the through hole, and the two are slidably connected, so that the load loading rod moves into the model box under the action of the applied load, thereby applying the load to the test model therein.

[0020] Furthermore, it also includes a locking structure of the model box, which includes: a guide cylinder, a positioning rod, a return spring, a block, a positioning ring, an electromagnet and an iron chain. Wherein: the guide cylinder is vertically fixed on the rear wall of the sliding support frame, the positioning rod is vertically movably arranged in the guide cylinder, the return spring is sleeved on the positioning rod, and the lower end of the return spring is connected to the upper end surface of the guide cylinder, and the upper end abuts against the block located on the side wall of the positioning rod. The positioning ring is fixed on the rear wall of the model box and is located directly above the positioning rod. At this time, the upper end of the positioning rod moves through the positioning ring and is located above it. The electromagnet is fixed in the upper surface of the horizontal pad and is located directly below the positioning rod. The upper end of the iron chain is connected to the lower end surface of the positioning rod, and the lower end is located above the electromagnet.

[0021] Furthermore, it also includes a position sensor, which is arranged on the horizontal pad, and the position sensor is connected to the controller of the second drive motor.

[0022] Furthermore, the bottom of the horizontal pad and the bottom surface of the machine body frame are connected via a first seismic isolation device to achieve shock absorption.

[0023] Furthermore, it also includes a groove-shaped base, which is embedded in the storage groove. The support seat is located in the groove-shaped base and fixed on the upper surface of the bottom surface thereof.

[0024] Furthermore, a second seismic isolation device is provided between the bottom surface of the body frame and the upper surface of the support seat.

[0025] Compared with the prior art, the present invention has at least the following beneficial technical effects: (1) The physical model test device of the present invention enables the heavy front reaction beam plate to be raised and lowered through the first lifting mechanism, and can be locked when it is raised to any height, and the height position of the reaction beam can be adjusted as needed. At the same time, after the front reaction beam plate is lowered, it can be temporarily stored in a ground storage tank at the testing site, avoiding affecting the model box from entering and exiting the test device, thereby conveniently realizing the laying of model materials before the test and the removal of model materials after the test, saving complicated manual labor, making the operation more convenient and efficient, and effectively improving the accuracy of the test results.

[0026] (2) The physical model test device of the present invention not only realizes that the model box can be conveniently and efficiently moved in and out of the test device through the position moving mechanism, but also, through the lifting function of the position moving mechanism, during the model laying and testing process in the model box, the lower end surface of the sliding support frame can be supported on the horizontal pad instead of being suspended after it falls back, thereby ensuring the stability of the model box during the above process and improving the accuracy of the test results. At the same time, the position moving mechanism also ensures that the model box is subjected to high vertical stress in the test device.

[0027] (3) The physical model test device of the present invention provides vertically distributed grooves on the inner side of the column, which not only facilitates the accommodation of the lead screw, but also because the side ends of the front reaction beam plate need to be connected to the lead screw, so that the two sides of the front reaction beam plate are just located in the grooves, which provides a reaction force for the front reaction beam plate during the test, realizing true three-dimensional loading, making the simulation test closer to the actual service environment of the object under test, and improving the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0029] Figure 1 It is a structural schematic diagram of a fully automated multi-field coupling physical simulation test system in the following embodiments.

[0030] Figure 2 Schematic diagram of the partial cross-sectional structure of the machine frame in the following embodiments.

[0031] Figure 3 Schematic diagram of the structure of the position moving mechanism in the following embodiments.

[0032] Figure 4 Schematic diagram of the structure of the sliding mechanism of the position moving mechanism in the following embodiments.

[0033] Figure 5 It is a structural schematic diagram of the working state of the fully automated multi-field coupling physical simulation test system in the following embodiments.

[0034] Figure 6 It is a rear view of the position moving mechanism and the model box in the following embodiments.

[0035] The marks in the above figure represent: 1-support seat, 2-machine frame, 3-front reaction beam, 4-first lifting mechanism, 5-position moving mechanism, 6-model box, 7-groove base, 8-first seismic isolation device, 9-second seismic isolation device, 10-guide cylinder, 11-positioning rod, 12-reset spring, 13-stopper, 14-positioning ring, 15-electromagnet, 16-iron chain, 17-position sensor, 301-first opening, 401-mounting plate, 402-upper Positioning member, 403-first drive motor, 404-screw, 405-lower positioning member, 406-column, 407-threaded sleeve, 501-horizontal pad, 502-sliding support frame, 503-wheel frame, 504-roller, 505-second drive motor, 506-second lifting mechanism, 507-support top plate, 508-guide tube, 509-guide rod, 510-guide rail groove, 601-second opening, 602-load loading rod, 603-sealing sleeve. DETAILED DESCRIPTION

[0036] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0037] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0038] For the convenience of description, if the words "up", "down", "left" and "right" appear in the present invention, they only indicate that they are consistent with the up, down, left and right directions of the drawings themselves, and do not limit the structure. They are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or component needs to have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0039] Now, the fully automated multi-field coupled physical simulation test system of the present invention is further described in conjunction with the accompanying drawings and specific embodiments of the specification. Figure 1 , Figure 2 , Figure 3 and Figure 4The test device includes: a support seat 1, a body frame 2, a front reaction beam plate 3, a first lifting mechanism 4, and a position moving mechanism 5. Specifically, a square storage tank is opened on the ground of the testing site, and the support seat 1 is supported on the bottom surface of the storage tank. The body frame 2 is fixedly connected to the upper surface of the support seat 1, and the front part of the body frame 2 is open to facilitate the entry and exit of the test model box 6. In this embodiment, the body frame 2 and the front reaction beam plate 3 adopt a truss structure, which can reduce the material consumption while ensuring the rigidity of the structure.

[0040] The front reaction beam plate 3 is arranged vertically, covering the front opening of the machine frame 2, and the front reaction beam plate 3 is located above the storage tank, so that the front reaction beam plate 3 enters the storage tank after being lowered, avoiding affecting the model box 6 from entering and exiting the front opening of the machine frame 2. To this end, the front reaction beam plate 3 is also connected to the first lifting mechanism 4. Specifically, refer to Figure 1 and Figure 2 The first lifting mechanism 4 includes: a mounting plate 401, an upper positioning member 402, a first drive motor 403, a lead screw 404, and a lower positioning member 405. The mounting plate 401 is a long plate-shaped structure, which is fixed on the top surface of the body frame 2. The upper positioning member 402 is a flange fixed horizontally on the upper surface of the mounting plate 401, and other similar structures may also be used, such as a plate body with a connection hole, so as to fix the first drive motor 403 to the mounting plate 401. The first drive motor 403 is vertically supported on the upper surface of the flange and the two are fixedly connected by fasteners such as bolts. The lead screw 404 is arranged vertically, and its upper end passes through the top surface of the body frame 2, the flange and the mounting plate 401 in sequence and is connected to the motor shaft of the first drive motor 403. The lower end of the lead screw 404 is rotatably connected to the lower positioning member 405 through a nut rotating ball, and the lower positioning member 405 is fixedly connected to the lower structure of the body frame 2, so that the lead screw 404 can rotate under the drive of the first drive motor 403 while maintaining stability. The two side surfaces of the front reaction beam plate 3 are respectively threadedly connected to the two lead screws 404 to drive the lead screw 404 to rotate, thereby driving the front reaction beam plate 3 to move up and down in and out of the storage tank.

[0041] The position moving mechanism 5 is located in the body frame 2 and on the upper and lower surfaces thereof. Specifically, the position moving mechanism 5 includes: a horizontal pad 501, a sliding support frame 502, a wheel frame 503, a roller 504, a second driving motor 505, a second lifting mechanism 506 and a supporting top plate 507. Among them: the horizontal pad 501 is located in the body frame 2 and on the upper surface connected to the bottom surface thereof, and the bottom surface is flush with the ground of the detection site, so that the position moving mechanism 5 can directly enter and exit the body frame 2. The sliding support frame 502 is a groove-shaped structure supported on the horizontal pad 501, and its groove body is distributed at the bottom. The wheel frame 503 is arranged in the groove body, and the roller 504 is rotatably fixed on the wheel frame 503, and the roller 504 is supported on the upper surface of the horizontal pad 501, so that the wheel frame 503 is suspended and supported above the horizontal pad 501. The second driving motor 505 is fixed on the outer side wall of the wheel frame 503 and connected to the roller 504 to drive the roller 504 to rotate, so that the position moving mechanism 5 moves as a whole.

[0042] The second lifting mechanism 506 is fixed at the center of the top surface of the wheel frame 503, and the support top plate 507 is arranged horizontally and fixedly connected to the upper end of the lifting rod of the second lifting mechanism 506. The support top plate 507 is fixedly connected to the lower surface of the top surface of the trough body of the sliding support frame 502, so that the sliding support frame 502 can be driven to rise and fall by the second lifting mechanism 506. The second lifting mechanism 506 can be a hydraulic cylinder, an electric cylinder, etc.

[0043] When in use, first start the first drive motor 403 to drive the lead screw 404 to rotate, so that the front reaction beam plate 3 is lowered into the storage tank. At this time, the upper end surface of the front reaction beam plate 3 is flush with the ground of the detection site. Then start the second lifting mechanism 506 to drive the position moving mechanism 5 to carry the model box 6 out of the front opening of the body frame 2 to a designated position on the external ground. The model box 6 is placed on the upper surface of the sliding support frame 502. Then start the second lifting mechanism 506 to descend, so that after the sliding support frame 502 falls back, the lower end surface is supported on the horizontal pad 501 instead of being suspended, to ensure that the model box 6 maintains stability during the laying of the model to be tested. Then the staff opens the top surface of the model box 6 and lays the model to be tested therein. After laying is completed, the position moving mechanism 5 is used to carry the model box 6 back to the body frame 2 again, and then the first lifting mechanism 4 is started to drive the front reaction beam plate 3 to rise and gradually close the front opening of the body frame 2 (such as Figure 5As shown), and finally the test work is carried out. In addition, before the test, the second lifting mechanism 506 is also started to descend, so that the lower end face of the sliding support frame 502 is supported on the horizontal pad 501 after it falls back, which can not only protect the wheel frame 503 and the roller 504 from damage, but also help to improve the accuracy of the test results. The physical model test device of this embodiment allows the heavy front reaction beam plate 3 to be lifted and lowered through the first lifting mechanism 4, and can be locked when lifted to a position of any height, and the height position of the reaction beam can be adjusted as needed. At the same time, after the front reaction beam plate 3 is lowered, it can also be temporarily stored in the ground storage tank of the detection site, avoiding the influence on the model box 6 entering and exiting the test device, thereby conveniently realizing the laying of the model material before the test and the removal of the model material after the test, eliminating complicated manual labor, and making the operation more convenient and efficient, effectively improving the accuracy of the test results.

[0044] refer to Figure 1 and Figure 5 In another embodiment, the physical model test device illustrated in the above embodiment further includes a trough-shaped base 7 made of cast iron, which is embedded in a ground storage tank at the testing site, and the support seat 1 is located in the trough-shaped base 7 and fixed on the upper surface of its bottom surface.

[0045] refer to Figure 3 In another embodiment, the front wall surface of the model box 6 of the physical model test device in the above embodiment is provided with a second opening 601 so as to excavate the test design tunnel after the model is laid.

[0046] refer to Figure 3 In another embodiment, a plurality of load loading rods 602 are disposed on both side walls, the top surface and the rear wall of the model box 6 of the physical model test device in the above embodiment, and one end of the load loading rod 602 passes through the through hole on the model box 6 and penetrates into the inner cavity thereof. A sealing sleeve 603 is disposed between the load loading rod 602 and the through hole, and the two are slidably connected. Figure 2 The two side walls and the rear wall of the body frame 2 are both provided with pressure load applying mechanisms, which correspond to the load loading rod 602, so as to apply extrusion force to the load loading rod 602, and then the load loading rod 602 moves into the model box 6, thereby applying pressure load to the test model therein for simulation testing.

[0047] refer to Figure 1 and Figure 5In another embodiment, a first opening 301 is provided on the plate surface of the front reaction beam plate 3 of the physical model test device in the above-mentioned embodiment example, so as to facilitate the excavation of the internal tunnel of the laid model by using an automatic excavation device or manually, thereby realizing the effective simulation of the tunnel and the tunnel excavation process in the project, and facilitating the tunnel excavation work.

[0048] refer to Figure 1 , Figure 2 and Figure 5 In another embodiment, a column 406 is provided on both the left and right sides of the front reaction beam plate 3 of the physical model test device in the above-mentioned embodiment, and the upper end of the column 406 is fixedly connected to the top and lower surfaces of the body frame 2. The inner side surface of the column 406 has a vertically distributed groove, and the side ends of the lead screw 404 and the front reaction beam plate 3 are both located in the groove. In this embodiment, by providing a vertically distributed groove on the inner side surface of the column 406, it is not only convenient to accommodate the lead screw 404, but also because the side ends of the front reaction beam plate 3 need to be connected to the lead screw 404 at this time, so that the two sides of the front reaction beam plate 3 are just located in the groove, which just provides a stable reaction force for the front reaction beam plate 3 during the test process, realizes true three-dimensional loading, makes the simulation test closer to the actual service environment of the object under test, and improves the accuracy of the test results.

[0049] refer to Figure 1 and Figure 2 In another embodiment, a threaded sleeve 407 is fixed in the upper end surface of the front reaction beam 3 of the physical model test device in the above embodiment example, and the lead screw 404 passes through the threaded sleeve 407 and the front reaction beam 3 and is connected to the motor shaft of the first drive motor 403, and the lead screw 404 and the threaded sleeve 407 are threadedly connected, so that the front reaction beam 3 is driven to rise and fall when the lead screw 404 rotates.

[0050] refer to Figure 4 In another embodiment, a plurality of guide mechanisms distributed around the second lifting mechanism 506 are further provided on the top surface of the wheel frame 503 of the physical model test device in the above-mentioned embodiment. The guide mechanism includes a guide tube 508 and a guide rod 509. Among them: the guide tube 508 is vertically fixed on the top surface of the wheel frame 503, and the lower end of the guide rod 509 is inserted into the upper end of the guide tube 508, and the two are slidably connected. The upper end of the guide rod 509 is fixedly connected to the support top plate 507. The guide mechanism helps to be more stable when driving the sliding support frame 502 and the model box 6 on its upper surface to rise and fall.

[0051] refer to Figure 3In another embodiment, the upper surface of the horizontal pad 501 of the physical model test device in the above embodiment example is provided with a guide groove 510, and the lower wheel surface of the roller 504 is located in the guide groove 510, so that the roller 504 moves along the set track to avoid collision during the process of entering and exiting the body frame 2, causing damage to instruments, components, etc. Further, the upper end surface of the front reaction beam plate 3 is provided with a guide groove corresponding to the guide groove 510, and after the front reaction beam plate 3 is lowered until its upper end surface is flush with the ground, the rear end of the guide groove is aligned with the guide groove 510, and the front end of the guide groove is in a trumpet shape, so that when the position moving mechanism 5 returns, it can quickly and efficiently enter the guide groove 510 through the guide groove.

[0052] refer to Figure 2 In another embodiment, the bottom of the horizontal pad 501 of the physical model test device in the above embodiment and the bottom surface of the body frame 2 are connected by a first seismic isolation device 8 to achieve shock absorption.

[0053] refer to Figure 1 In another implementation manner, a second seismic isolation device 9 is provided between the bottom surface of the body frame 2 and the upper surface of the support seat 1 of the physical model test device in the above-mentioned embodiment.

[0054] refer to Figure 6In another embodiment, the physical model test device of the above embodiment further includes a locking structure of the model box 6, which includes: a guide cylinder 10, a positioning rod 11, a return spring 12, a stopper 13, a positioning ring 14, an electromagnet 15 and an iron chain 16. Wherein: the guide cylinder 10 is vertically fixed on the rear wall of the sliding support frame 502, the positioning rod 11 is vertically movably arranged in the guide cylinder 10, the return spring 12 is sleeved on the positioning rod 11, and the lower end of the return spring 12 is connected to the upper end surface of the guide cylinder 10, and the upper end of the return spring 12 abuts against the bottom surface of the stopper 13 located on the side wall of the positioning rod 11, so that the positioning rod 11 is suspended and supported in the guide cylinder 10. The positioning ring 14 is fixed on the rear wall of the model box 6 and is located directly above the positioning rod 11, and at this time, the upper end of the positioning rod 11 is movably passed through the positioning ring 14 and is located above it. The electromagnet 15 is fixed in the groove on the upper surface of the horizontal pad 501 and is located directly below the positioning rod 11. The upper end of the iron chain 16 formed by a plurality of interlocking rings is connected to the lower end surface of the positioning rod 11, and the lower end of the iron chain 16 is located above the electromagnet 15. The two can be in contact or have a certain gap. In this embodiment, the locking structure can maintain the stability of the model box 6 during the movement of the model box 6 by the position moving mechanism 5, prevent the model box 6 from shifting, and cause the load loading rod 602 on the side wall of the model box 6 to be difficult to align with the pressure load applying mechanism after returning to the body frame 2, thereby affecting the test. When the test is required, after the electromagnet 15 is started, the lower end of the iron chain 16 is firstly adsorbed by the magnetic force of the electromagnet 15, and then continuously adsorbed and stacked on the electromagnet 15, and then the positioning rod 11 is pulled downward to disengage from the positioning ring 14, thereby releasing the locking of the model box 6, which is convenient for testing. The iron chain 16 can make the lower end of the positioning rod 11 still be able to extend and retract when the lower end is far away from the electromagnet 15 (so that the positioning rod 11 has sufficient space to move up and down). When the electromagnet 15 is turned off, the positioning rod 11 is reset under the action of the reset spring 12, and the iron chain 16 is also restored, thereby automatically restoring the locking of the model box 6.

[0055] refer to Figure 6 In another embodiment, the physical model test device of the above embodiment example also includes a position sensor 17, which is arranged on the horizontal pad 501, and the position sensor 17 is connected to the controller of the second drive motor 505 in the position moving mechanism 5, so that the position moving mechanism 5 stops moving after moving the model box 6 to the set position.

[0056] Finally, it should be noted that any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. Although the above describes the specific implementation of the present invention in conjunction with the drawings, it is not a limitation of the protection scope of the present invention. Those skilled in the art should understand that on the basis of the technical solution of the present invention, various modifications or deformations that can be made by those skilled in the art without creative labor are still within the protection scope of the present invention.

Claims

1. A fully automated multi-field coupling physical simulation test system, characterized in that: include: A support base is arranged in a ground storage tank at a testing site. A machine frame, the machine frame is fixedly connected to the upper surface of the support base, and the front portion of the machine frame is open; A front reaction beam plate, the front reaction beam plate covers the front opening of the body frame, and the front reaction beam plate is located above the storage tank; The position moving mechanism is connected to the first lifting mechanism, and the position moving mechanism is located in the body frame and on the upper surface of the bottom surface thereof, and the bottom surface is flush with the ground of the detection site.

2. The fully automated multi-field coupled physical simulation test system according to claim 1 is characterized in that: The first lifting mechanism comprises: A mounting plate fixed to the top surface of the machine frame; an upper positioning member fixed on an upper surface of the mounting plate; a first drive motor, the first drive motor being fixed on the upper positioning member; A lead screw is vertically arranged, and its upper end passes through the machine frame, the mounting plate and the upper positioning member in sequence and is connected to the first drive motor; the two side surfaces of the front reaction beam plate are respectively connected to the two lead screws by threads; A lower positioning member, the lower end of the lead screw is rotatably connected to the lower positioning member, and the lower positioning member is fixedly connected to the lower part of the body frame.

3. The fully automated multi-field coupled physical simulation test system according to claim 2 is characterized in that: Both sides of the front reaction beam plate are provided with columns, and the inner side surface thereof has a vertically distributed groove, and the lead screw and the side end of the front reaction beam plate are both located in the groove.

4. The fully automated multi-field coupled physical simulation test system according to claim 2 is characterized in that: The front reaction beam plate is a truss-type structure, and a threaded sleeve is fixed in its upper end surface. The lead screw passes through the threaded sleeve and the front reaction beam plate and is connected to the first drive motor, and the lead screw and the threaded sleeve are threadedly connected; or, a first opening is opened on the plate surface of the front reaction beam plate.

5. The fully automated multi-field coupled physical simulation test system according to claim 1 is characterized in that: The position moving mechanism comprises: A horizontal pad fixed to the bottom surface of the machine frame; A sliding support frame, which is a groove-shaped structure supported on the horizontal pad; A wheel frame, which is arranged in a slot of the sliding support frame; A roller, the roller is rotatably fixed on the wheel frame, a second drive motor, the second drive motor being fixed to the outer side wall of the wheel frame and connected to the roller; a second lifting mechanism, wherein the second lifting mechanism is fixed on the top surface of the wheel frame; A support top plate, the support top plate is horizontally fixed on the second lifting mechanism, and the support top plate is fixedly connected to the lower surface of the top surface of the trough body of the sliding support frame; Alternatively, the upper surface of the horizontal pad is provided with a guide rail groove, and the lower wheel surface of the roller is located in the guide rail groove; Alternatively, the upper end surface of the front reaction beam plate is provided with a guide groove corresponding to the guide rail groove; when the front reaction beam plate is lowered until its upper end surface is flush with the ground, the rear end of the guide groove is aligned with the guide rail groove, and the front end of the guide groove is in a bell-mouth shape; Alternatively, the bottom of the horizontal pad and the bottom surface of the machine frame are connected via a first seismic isolation device; Alternatively, it further includes a position sensor, which is arranged on the horizontal pad, and the position sensor is connected to the controller of the second drive motor.

6. The fully automated multi-field coupled physical simulation test system according to claim 5 is characterized in that: A guide mechanism formed by a guide tube and a guide rod is arranged on the top surface of the wheel frame; the guide tube is vertically fixed on the top surface of the wheel frame, the lower end of the guide rod is inserted into the upper end of the guide tube and the two are slidably connected, and the upper end of the guide rod is fixedly connected to the supporting top plate.

7. The fully automated multi-field coupled physical simulation test system according to claim 5 is characterized in that: It also includes a model box for laying the model to be tested, which is placed on the upper surface of the horizontal pad, and the top surface of the model box can be opened; or, the front wall surface of the model box has a second opening.

8. The fully automated multi-field coupled physical simulation test system according to claim 7 is characterized in that: The two side walls, top surface and rear wall of the model box are all provided with load loading rods, one end of which passes through the through hole on the model box and penetrates into its inner cavity; a sealing sleeve is provided between the load loading rod and the through hole, and the two are slidably connected.

9. The fully automated multi-field coupled physical simulation test system according to claim 7 is characterized in that: It also includes a locking structure of the model box, which includes: a guide cylinder, a positioning rod, a return spring, a block, a positioning ring, an electromagnet and an iron chain; wherein: the guide cylinder is vertically fixed on the rear wall of the sliding support frame, the positioning rod is vertically movably arranged in the guide cylinder, the return spring is sleeved on the positioning rod, and the lower end of the return spring is connected to the upper end surface of the guide cylinder, and the upper end abuts against the block located on the side wall of the positioning rod; the positioning ring is fixed on the rear wall of the model box and is located directly above the positioning rod, at which time the upper end of the positioning rod moves through the positioning ring and is located above it; the electromagnet is fixed in the upper surface of the horizontal pad and is located directly below the positioning rod; the upper end of the iron chain is connected to the lower end surface of the positioning rod, and the lower end is located above the electromagnet.

10. The fully automated multi-field coupled physical simulation test system according to any one of claims 1 to 9, characterized in that: It also includes a groove-shaped base, which is embedded in the storage groove; the support seat is located in the groove-shaped base and fixed on the upper surface of its bottom surface; or a second seismic isolation device is arranged between the bottom surface of the body frame and the upper surface of the support seat.

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