Multi-medium test device for ice structure

Abstract

The invention provides a multi-medium testing device for an ice structure. Comprising a lower supporting frame, an upper supporting frame is connected to the upper portion of the lower supporting frame, and a target plate part is connected to the upper portion of the upper supporting frame; the lower supporting frame comprises a rectangular bottom plate, the four corners of the upper surface of the rectangular bottom plate are each connected with the lower portion of a supporting bottom column, and the upper portions of the supporting bottom columns are embedded into the lower portions of the supporting top columns; the target plate part comprises an upper flange, an upper clamping plate, an ice target plate, a lower clamping plate and a lower flange which are sequentially arranged from top to bottom, and a connecting screw sequentially penetrates through connecting holes in the upper flange, the upper clamping plate, the lower clamping plate and the lower flange from top to bottom and then is connected with a threaded hole in the upper surface of the rectangular top frame; the upper flange, the upper clamping plate, the lower clamping plate and the lower flange are hollow rectangular frames. The test device designed by the invention can be used for a mechanical property test of interaction between a target plate structure and multiple media, and is particularly suitable for brittle materials such as ice and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of ship and ocean engineering, and more particularly, to a multi-medium test device for ice structures. Background Art

[0002] With global warming and the development of the Arctic shipping route, the rich resources and special geographical location in the Arctic region are becoming increasingly important for a country's energy security and strategic deployment. It is self-evident to carry out research on the interaction of gas-water-sea ice-structure. Considering the harsh environment, sensitive nature and sea ice with a thickness of several meters in the polar region, it is extremely difficult to conduct full-scale in-situ tests. Therefore, it is an excellent choice to carry out scaled-down mechanistic tests on the response of ice structures in a multi-medium environment.

[0003] In existing target plate response tests, generally two hollow flanges are used to clamp and fix the target plate. The flanges and the target plate need to be drilled at corresponding positions on the periphery, and after inserting screws, they are tightened with nuts to achieve the boundary condition of rigid fixation around the target plate. However, the above method can only fix metal structures with sufficient rigidity, such as steel plates, etc., and cannot fix ice structures, because drilling holes on the boundary of brittle materials will cause the structure to break directly or lose strength, resulting in the inability to complete the test. Moreover, the existing test devices cannot flexibly set the medium environment conditions where the target plate is located, so they cannot meet various test requirements. Summary of the Invention

[0004] In view of the above-mentioned technical problem that the existing target plate response test cannot fix ice structure materials, a multi-medium test device for ice structures is provided. The present invention specially designs a fixed end for the target plate, and realizes the fixation around the ice structure by moderately squeezing the clamping plate, avoiding the damage to the ice structure caused by stress concentration of the clamping force and also avoiding the adverse situation of drilling holes on the ice structure.

[0005] The technical means adopted by the present invention are as follows:

[0006] A multi-medium test device for ice structures, including a lower support frame, an upper support frame is connected above the lower support frame, and a target plate part is connected above the upper support frame;

[0007] The lower support frame includes a rectangular bottom plate, the four corners of the upper surface of the rectangular bottom plate are respectively connected to the lower part of a support bottom column, and the upper part of the support bottom column is nested with the lower part of a support top column;

[0008] The upper support frame includes a hollow rectangular top frame, the four corners of the lower surface of the rectangular top frame are respectively connected to the upper part of a support top column, and threaded holes are opened on the upper surface of the rectangular top frame;

[0009] The target plate part includes an upper flange, an upper clamping plate, an ice target plate, a lower clamping plate, and a lower flange that are arranged in sequence from top to bottom. The connecting screw passes through the connecting holes on the upper flange, the upper clamping plate, the lower clamping plate, and the lower flange from top to bottom in sequence and is connected to the threaded hole on the upper surface of the rectangular top frame. The upper flange, the upper clamping plate, the lower clamping plate, and the lower flange are hollow rectangular frames.

[0010] Further, a lower cavity box is arranged below the lower clamping plate. A medium is arranged inside the lower cavity box. The lower cavity box is a hollow cuboid structure with an open top. The lower cavity box is located between the lower clamping plate and the lower flange. An outer edge is arranged at the edge of the opening surface of the lower cavity box. A groove is arranged on the inner circle of the lower flange. The outer edge of the lower cavity box fits with the groove of the lower flange.

[0011] Further, an upper cavity box is arranged above the upper clamping plate. A medium is arranged inside the upper cavity box. The upper cavity box is a hollow cuboid structure with an open bottom. The upper cavity box is located between the upper flange and the upper clamping plate. An outer edge is arranged at the edge of the opening surface of the upper cavity box. A groove is arranged upward on the inner circle of the upper flange. The outer edge of the lower cavity box fits with the groove of the lower flange.

[0012] Further, a lower cavity box is arranged below the lower clamping plate. A medium is arranged inside the lower cavity box. The lower cavity box is a hollow cuboid structure with an open top. The lower cavity box is located between the lower support frame and the upper support frame. An outer edge is arranged at the edge of the opening surface of the lower cavity box. A groove is arranged on the inner circle of the lower flange. The outer edge of the lower cavity box fits with the groove of the lower flange;

[0013] An upper cavity box is arranged above the upper clamping plate. A medium is arranged inside the upper cavity box. The upper cavity box is a hollow cuboid structure with an open bottom. An outer edge is arranged at the edge of the opening surface of the upper cavity box. A groove is arranged upward on the inner circle of the upper flange. The outer edge of the upper cavity box fits with the groove of the upper flange.

[0014] Further, a rubber gasket is arranged in the groove.

[0015] Further, a counterweight is arranged on the bottom plate between the two support bottom columns.

[0016] Further, a triangular reinforcing structure is arranged between the support bottom column and the bottom plate.

[0017] Further, a scale and a number of height adjustment holes are arranged on the support top column. A height adjustment knob and a threaded hole are arranged on the support bottom column.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] First, the test device of the present invention is specially designed with a fixed end of the target plate. An opening clamping plate is arranged between the upper and lower flanges and the target plate. The ice structure is fixed around by the appropriate extrusion of the clamping plate, so that the clamping force acts evenly on the structure. At the same time, the clamping method avoids the loss of structural strength or rupture caused by drilling holes at the edge of the ice structure, and expands the selection range of the material properties of the target plate compared with the existing test devices. Secondly, the test device of the present invention can set cavities on both sides of the target plate by using the grooves of the flange and the outer edge of the cavity, and can carry out the response test of the ice structure under up to 5 kinds of medium combination conditions. Finally, the flange, the clamping plate and the air chamber are all made of transparent acrylic materials, which is convenient for the observation and shooting of the whole test process.

[0020] The test device designed by the present invention can be used for the mechanistic test of the interaction between the target plate structure and multiple media, especially suitable for brittle materials such as ice. It can carry out the test of the interaction between the structure and ice across media, and study the characteristics of the multi-phase coupling action of the structure-ice-air-water and the motion characteristics of the structure; it can also carry out the mechanistic test of underwater explosion breaking ice, and study the damage characteristics of the underwater explosion load on the ice layer structure, and can support the development of a series of fluid-structure coupling mechanistic tests. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 It is a structural diagram of the support lower frame and the support upper frame of the present invention.

[0023] Figure 2 It is an installation sequence diagram of the target plate part of the present invention.

[0024] Figure 3 It is a device diagram of the present invention without a cavity.

[0025] Figure 4 It is a half-sectional view of the target plate part of the present invention without a cavity.

[0026] Figure 5 It is an installation process diagram of the lower cavity box and the lower flange of the present invention.

[0027] Figure 6 It is a device diagram of the present invention with only the lower cavity box.

[0028] Figure 7 It is a half-sectional view of the target plate part of the present invention with only the lower cavity box.

[0029] Figure 8This is the device diagram when only the upper cavity box is equipped for the present invention.

[0030] Figure 9 This is the half-sectional view of the target plate part when only the upper cavity box is equipped for the present invention.

[0031] Figure 10 This is the device diagram when both the upper and lower cavity boxes are equipped for the present invention.

[0032] Figure 11 This is the half-sectional view of the target plate part when both the upper and lower cavity boxes are equipped for the present invention.

[0033] In the figure: 1. Rectangular bottom plate; 2. Support bottom column; 3. Support top column; 4. Rectangular top frame; 5. Upper flange; 6. Upper clamping plate; 7. Ice target plate; 8. Lower clamping plate; 9. Lower flange; 10. Lower cavity box; 11. Upper cavity box; 12. Counterweight; 13. Height adjustment knob; 14. Connecting screw. Detailed implementation manners

[0034] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0035] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The description of at least one exemplary embodiment below is actually only illustrative and in no way limits the present invention and its application or use. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0036] It should be noted that the terms used here are only for describing the specific implementation manners and are not intended to limit the exemplary embodiments according to the present invention. As used here, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or their combinations.

[0037] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be clear that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific values should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not require further discussion in subsequent drawings.

[0038] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom", etc. are generally based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus cannot be construed as limiting the protection scope of the present invention: the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0039] For the convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "above" can be used here to describe the spatial positional relationship between a device or feature shown in the drawing and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation described in the drawing of the device. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned as "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations should be made for the spatial relative descriptions used here.

[0040] In addition, it should be noted that the use of words such as "first", "second", etc. to limit components is only for the convenience of differentiating the corresponding components. Without otherwise stating, the above words have no special meanings, and thus cannot be construed as limiting the protection scope of the present invention.

[0041] Such as Figures 1-11As shown in the figure, the present invention provides a multi-media test device for ice structures, including a lower support frame, an upper support frame is connected above the lower support frame, and a target plate part is connected above the upper support frame;

[0042] The lower support frame includes a rectangular bottom plate 1. Four corners of the upper surface of the rectangular bottom plate 1 are respectively connected to the lower part of a support bottom column 2, and the upper part of the support bottom column 2 is nested with the lower part of a support top column 3;

[0043] The upper support frame includes a hollow rectangular top frame 4. Four corners of the lower surface of the rectangular top frame 4 are respectively connected to the upper part of a support top column 3, and threaded holes are formed on the upper surface of the rectangular top frame 4;

[0044] When no cavity is equipped, the target plate part includes an upper flange 5, an upper clamping plate 6, an ice target plate 7, a lower clamping plate 8, and a lower flange 9 arranged in sequence from top to bottom. A connecting screw 14 passes through the connecting holes on the upper flange 5, the upper clamping plate 6, the lower clamping plate 8, and the lower flange 9 in sequence from top to bottom and is then connected to the threaded holes on the upper surface of the rectangular top frame 4. The upper flange 5, the upper clamping plate 6, the lower clamping plate 8, and the lower flange 9 are hollow rectangular frames.

[0045] When only a lower cavity box is equipped, the target plate part further includes: a lower cavity box 10 is arranged below the lower clamping plate 8, a medium is arranged in the lower cavity box 10, the lower cavity box 10 is a hollow cuboid structure with an open top, the lower cavity box 10 is located between the lower clamping plate 8 and the lower flange 9, an outer edge is arranged at the edge of the opening surface of the lower cavity box 10, a groove is arranged in the inner ring of the lower flange 9, and the outer edge of the lower cavity box 10 fits with the groove of the lower flange 9.

[0046] When only an upper cavity box is equipped, the target plate part further includes: an upper cavity box 11 is arranged above the upper clamping plate 6, a medium is arranged in the upper cavity box 11, the upper cavity box 11 is a hollow cuboid structure with an open bottom, an outer edge is arranged at the edge of the opening surface of the upper cavity box 11, a groove is arranged upward in the inner ring of the upper flange 5, and the outer edge of the upper cavity box 11 fits with the groove of the upper flange 5.

[0047] When both upper and lower cavity boxes are equipped, the target plate part further includes: a lower cavity box 10 is arranged below the lower clamping plate 8, a medium is arranged in the lower cavity box 10, the lower cavity box 10 is a hollow cuboid structure with an open top, the lower cavity box 10 is located between the lower support frame and the upper support frame, an outer edge is arranged at the edge of the opening surface of the lower cavity box 10, a groove is arranged in the inner ring of the lower flange 9, and the outer edge of the lower cavity box 10 fits with the groove of the lower flange 9.

[0048] Above the upper clamping plate 6, there is an upper cavity box 11. A medium is arranged inside the upper cavity box 11. The upper cavity box 11 is a hollow cuboid structure with an open bottom. An outer edge is provided at the edge of the opening surface of the upper cavity box 11. A groove is upwardly provided on the inner ring of the upper flange 5. The outer edge of the upper cavity box 11 coincides with the groove of the upper flange 5.

[0049] The test device of the present invention is as follows:

[0050] This device mainly includes three parts. One is the main structure part, which is composed of a support lower frame, a counterweight block, a protective layer, etc. The second is the target plate fixing part, which is composed of a flange, an opening clamping plate, a brittle target plate, etc. The flange and the clamping plate are provided with an odd number of holes (5 or more) on each side according to the specific size of the test device. Multiple sets of the target plate fixing part can be made to facilitate quick installation during multiple groups of tests, shorten the test interval time, and improve the test efficiency. The opening size and thickness of the clamping plate are determined according to the properties of the brittle material in the specific test. The third is the cavity part, which is composed of a cavity with an outer edge and a flange with a groove, etc. The cavity size can be adjusted according to the specific test situation. In order to facilitate observing and recording the entire test process, the flange, the clamping plate, and the cavity are all made of transparent acrylic material.

[0051] The usage method of the present invention is as follows:

[0052] (1) Test environment:

[0053] Select a suitable test environment according to the brittle target plate of the test. Take the ice structure as an example below. If the brittle target plate is an ice structure, then the test needs to be carried out in a low-temperature environment such as a low-temperature laboratory or an ice chamber. According to the specific ice preparation material or method, the environmental temperature can be appropriately adjusted to ensure that the ice structure does not melt for as long as possible to maintain the structural form and prevent structural strength loss or fixation failure. If the test involves a water medium, the temperature conditions need to be more stringent, and the temperature needs to be maintained near 0 degrees above to ensure that the water does not freeze. The entire test device needs to be kept in a low-temperature environment for more than half an hour to avoid unnecessary heat transfer during the experiment. If it is really impossible to meet the low-temperature test conditions, the first thing to ensure is that the temperature difference between the components or media in direct contact with the ice structure and the ice structure is as small as possible. Otherwise, cracks and damage and other strength losses will occur to the ice structure due to the temperature difference when they come into contact, especially for fluid media with strong penetrability such as water. If other brittle materials that require special test conditions are used as the target plate, set the test environment accordingly, and try to ensure that this test device is installed after other test equipment is installed to reduce the exposure time of the target plate under non-adaptive environmental conditions, thereby affecting the test results.

[0054] (2) Preparation before installation:

[0055] The installation sequence of the test device is the key to ensuring the smooth progress of the test. According to the specific situation of the test device and the layout of the test environment site, determine the installation order, whether to assemble the test device outside the test environment and then move it into the environment, or directly assemble the device in the test environment, giving priority to minimizing the impact of the installation process on the brittle target plate. Finally, according to the layout of the medium required for the test, choose whether to set a cavity behind the target plate. The multi-medium setting situations corresponding to different cavity layout methods are as follows: (a) Without a cavity: Taking the brittle target plate as the horizontal plane, with medium 1 above, medium 2 below, and the brittle target plate as medium 3, supporting a maximum combination of 3 media; (b) Only equipped with upper / lower cavities: On the basis of (a), medium 4 in the upper / lower cavities is added, supporting a maximum combination of 4 media; (c) Equipped with both upper and lower cavities: On the basis of (a), medium 4 in the upper cavity and medium 5 in the lower cavity are added, supporting a maximum combination of 5 media.

[0056] (3) Assemble the main structure part:

[0057] Figure 1 The main structure of the test device is shown. The overall support lower frame is a cuboid structure, composed of a bottom surface and four telescopic legs. The telescopic legs are a combination of a support upper column, a support top column, and a height adjustment knob. Eight triangular structures are set between the legs and the bottom surface to ensure the stability of the structure. Threaded holes are left at corresponding positions on the top surface of the support upper frame for screwing in screws to fix the target plate. A scale is set on the upper side of the telescopic legs, marking the vertical distance between the target plate and the lowest part of the test device. Adjust the height of the target plate according to the specific test situation, and the scales of the four legs need to be the same to ensure the level of the target plate with the bottom surface. Then, tighten the four knobs to fix the legs. Weights are evenly placed on the bottom surface to lower the center of gravity and stabilize the device, preventing the test device from tipping over and injuring people due to violent responses during the test. If the test device is arranged in a high-density medium, the weights can offset the buoyancy of the device. In the case of a large-volume cavity, more and heavier weights are required. If the test to be carried out requires excessive input loads, which are dangerous and pose a threat to personal safety and the main structure of the test device, such as a projectile penetration of the target plate test or an explosion ice-breaking test, a protective layer needs to be arranged at corresponding positions such as the bottom surface to buffer the impact load or explosion load and avoid causing losses to life and property.

[0058] (4) Assemble the target plate fixing part (without a cavity):

[0059] First, place the ordinary lower flange 4 above the support upper frame and align it with the holes, and then sequentially place the lower clamping plate 5, the ice target plate structure 6, the upper perforated clamping plate 7, and the ordinary upper flange 8 from bottom to top. Since there is no cavity, ordinary flanges without grooves can be used for the upper and lower flanges. Figure 2Shows the installation sequence at the target plate end. Then, select screws of appropriate length according to the thickness of the ice structure. First, insert the screws into the holes at the four corners and slowly tighten them. During the process, use a socket to tighten them manually, and do not use an electric wrench to avoid damaging the brittle target plate due to violent vibration. While ensuring that the upper and lower clamping plates are in full contact with the ice structure to meet the boundary conditions, it is also necessary to avoid over-tightening and causing extrusion damage to the ice structure. Finally, slowly tighten the remaining screws according to the above operation to ensure that the target plate remains horizontal. Figure 3 Is the structural diagram of the test device without a cavity, Figure 4 Is the half-sectional view of the test device without a cavity.

[0060] (5) Assemble the target plate fixing part (equipped with a cavity):

[0061] First, determine whether to equip with a lower cavity, an upper cavity, or both upper and lower cavities according to the multi-media layout required for the test. The size of the cavity is determined by the specific test situation. Before the test, fill the cavity with the required medium. The cavity is a cuboid container with one open side, and there is an outer edge of a certain width at the edge of the open side, which is used in combination with a flange with a groove. The size of the outer edge is the same as the size of the flange groove, and the outer edge of the cavity can just be embedded into the groove of the flange to realize the fixation of the cavity. There is a rubber gasket in the groove to fill the contact gap and prevent the medium from penetrating. The width of the outer edge can be determined according to the mass of the medium contained in the cavity to ensure that the outer edge has sufficient strength to fix the cavity. Taking the lower cavity and the lower flange as an example, the specific design details are as Figure 5 Shown. The installation sequence of the target plate end for different cavity layout methods is as follows: (a) Only equipped with a lower cavity: from bottom to top are the lower grooved flange, lower cavity, lower perforated clamping plate, ice target plate structure, upper perforated clamping plate, and ordinary upper flange, Figure 6 And Figure 7 Are the structural diagram of the test device and the half-sectional view of the test device; (b) Only equipped with an upper cavity: from bottom to top are the lower ordinary flange, lower perforated clamping plate, ice target plate structure, upper perforated clamping plate, upper cavity, and grooved upper flange, Figure 8 And Figure 9 Are the structural diagram of the test device and the half-sectional view of the test device; (c) Equipped with both upper and lower cavities: from bottom to top are the lower grooved flange, lower cavity, lower perforated clamping plate, ice target plate structure, upper perforated clamping plate, upper cavity, and grooved upper flange, Figure 10 And Figure 11 Are the structural diagram of the test device and the half-sectional view of the test device. Subsequently, tighten the screws according to the operation in (4) to fix the target plate part in the case of being equipped with a cavity. Steps (4) or (5) can be repeated to prepare multiple sets of target plate ends at the same time, which is convenient for reducing the time for replacing the target plate when conducting multiple groups of tests and improving the test efficiency.

[0062] (6) Conduct the test:

[0063] Arrange the medium in the test environment in advance, slowly place the test device into the test environment / slowly adjust the position of the test device in the test environment, adjust the medium in the test environment and wait for all the media to stabilize. After meeting the corresponding cross-medium test conditions, prepare to conduct the test. With the cooperation of other test device systems such as the load input system (projectile launch system or charge detonator system, etc.), the data acquisition system (strain gauges, sensors or high-speed cameras, etc.) and the lighting system, a series of response tests of ice structures under multi-medium conditions are carried out.

[0064] (7) Replacement of the target plate end during multiple groups of tests:

[0065] After a group of tests is completed, if the ice structure and the cavity are damaged, it is necessary to clean the test environment and update all the media. First, slowly loosen the screws at the four corners, followed by other screws, remove the target plate end, and take pictures / scans of the ice target plate structure for record keeping. If the bottom support structure moves or the legs are misaligned due to severe disturbance during the test, then the support structure also needs to be adjusted to ensure the consistency of multiple groups of tests. Quickly install the pre-prepared target plate end, prepare other test environments, media and test devices, and start the next group of tests.

[0066] (8) Disassembly of the test device:

[0067] First, disassemble the fixed part of the target plate, then loosen the height adjustment knob, retract the legs of the bottom support structure, and finally store the test equipment properly in the warehouse.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-media test device for ice structure, characterized in that: It comprises a supporting lower frame, the upper part of which is connected to a supporting upper frame, and the upper part of which is connected to a target plate portion; The supporting lower frame comprises a rectangular bottom plate (1), the four corners of the upper surface of the rectangular bottom plate (1) are respectively connected to the lower part of a supporting bottom column (2), and the upper part of the supporting bottom column (2) is nested with the lower part of the supporting top column (3); The supporting upper frame comprises a hollow rectangular top frame (4), the four corners of the lower surface of the rectangular top frame (4) are respectively connected to the upper part of a supporting top column (3), and a threaded hole is opened on the upper surface of the rectangular top frame (4); The target plate portion comprises an upper flange (5), an upper clamping plate (6), an ice target plate (7), a lower clamping plate (8) and a lower flange (9) which are arranged in sequence from top to bottom. A connecting screw (14) passes through the connecting holes on the upper flange (5), the upper clamping plate (6), the lower clamping plate (8) and the lower flange (9) in sequence from top to bottom and is connected to a threaded hole on the upper surface of a rectangular top frame (4). The upper flange (5), the upper clamping plate (6), the lower clamping plate (8) and the lower flange (9) are hollow rectangular frames.

2. The multi-media test device for ice structure according to claim 1, characterized in that: A lower cavity box (10) is arranged below the lower clamping plate (8), and a medium is arranged in the lower cavity box (10). The lower cavity box (10) is a hollow rectangular parallelepiped structure with an open top. The lower cavity box (10) is located between the lower clamping plate (8) and the lower flange (9). An outer edge is arranged on the edge of the opening surface of the lower cavity box (10), and a groove is arranged on the inner circle of the lower flange (9). The outer edge of the lower cavity box (10) is matched with the groove of the lower flange (9).

3. The multi-media test device for ice structure according to claim 1, characterized in that: An upper cavity box (11) is arranged above the upper clamping plate (6), and a medium is arranged in the upper cavity box (11). The upper cavity box (11) is a hollow rectangular parallelepiped structure with an opening at the bottom. The upper cavity box (10) is located between the upper flange (5) and the upper clamping plate (6). An outer edge is arranged on the edge of the opening surface of the upper cavity box (11), and a groove is arranged upward on the inner circle of the upper flange (5). The outer edge of the upper cavity box (11) is matched with the groove of the upper flange (5).

4. The multi-media test device for ice structure according to claim 1, characterized in that: A lower cavity box (10) is arranged below the lower clamping plate (8), a medium is arranged in the lower cavity box (10), the lower cavity box (10) is a hollow rectangular parallelepiped structure with an open top, the lower cavity box (10) is located between the supporting lower frame and the supporting upper frame, an outer edge is arranged on the edge of the opening surface of the lower cavity box (10), a groove is arranged on the inner circle of the lower flange (9), and the outer edge of the lower cavity box (10) is consistent with the groove of the lower flange (9); An upper cavity box (11) is arranged above the upper clamping plate (6), and a medium is arranged in the upper cavity box (11). The upper cavity box (11) is a hollow rectangular parallelepiped structure with an opening at the bottom. An outer edge is arranged on the edge of the opening surface of the upper cavity box (11), and a groove is arranged upward on the inner circle of the upper flange (5). The outer edge of the upper cavity box (11) is matched with the groove of the upper flange (5).

5. The multi-media test device for ice structure according to claim 2, 3 or 4, characterized in that: A rubber gasket is arranged in the groove.

6. The multi-media test device for ice structure according to claim 1, characterized in that: A counterweight block (12) is arranged on the bottom plate between the two supporting bottom columns (2).

7. The multi-media test device for ice structure according to claim 1, characterized in that: A triangular reinforcement structure is provided between the supporting base column (2) and the base plate.

8. The multi-media test device for ice structure according to claim 1, characterized in that: The supporting top column (3) is provided with a scale and a plurality of height adjustment holes, and the supporting bottom column (2) is provided with a height adjustment knob (13) and a screw hole.

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