A gradient-adjustable offshore slope terrain simulation test pool based on double-platform lifting

Abstract

The application relates to the technical field of test pools, and particularly discloses a gradient-adjustable offshore slope terrain simulation test pool based on double-platform lifting, which comprises a pool main body, a first platform, a second platform and an inclined panel. The pool main body is provided with a deep pool and a shallow pool which are in communication with each other along a first direction. The first platform is arranged to be capable of lifting in the deep pool. The second platform is arranged to be capable of lifting in the deep pool. The second platform is located on one side of the deep pool close to the shallow pool and between the first platform and the shallow pool. The first platform is provided with a sliding seat capable of adjusting the position along the first direction. The first end of the inclined panel is hinged to the side surface of the second platform. The second end of the inclined panel is hinged to the sliding seat. In the test pool, the inclination angle of the inclined panel can be changed without disassembling and replacing structural members through the lifting of the first platform and the second platform, so that different seabed terrain features of the offshore area can be adapted, and the operation process is simplified.

Description

Technical Field

[0001] This application relates to the field of experimental water tank technology, and in particular to an experimental water tank for simulating nearshore slope terrain based on a gradient adjustable dual-platform lifting system. Background Technology

[0002] The test pool is a device used in marine engineering to conduct physical simulation experiments. By controlling environmental parameters such as water flow, waves, and wind, it constructs test scenarios that are equivalent to or close to real marine environmental parameters, providing crucial data support for research in island development, offshore structure design, and shoreline protection engineering. Specifically, the test pool is equipped with modules for wave generation, current generation, and wind generation to simulate ocean dynamic processes such as waves and tides, test the stability of shoreline protection structures such as breakwaters and revetments under different wave conditions, and can also simulate the working conditions of floating structures.

[0003] In the marine environment, the continental shelf, as the seabed area transitioning from the deep sea to land, is generally distributed along the coastal continental margin. The nearshore slope is the subsequent area transitioning from the continental shelf to the nearshore shallow sea. Its topographic slope is generally greater than that of the continental shelf and is commonly found at the edges of river deltas or around coral reef coasts. This type of terrain can be used for the construction of nearshore wind power platforms, shoreline protection projects, etc.

[0004] From a topographical perspective, waves are prone to refraction, deformation, and even breakage when traversing nearshore slopes. Coastal current velocity and direction vary significantly with slope, accompanied by complex processes such as sediment transport and water exchange. These topographical and hydrological conditions directly determine the design parameters and safety performance of engineering structures. From an ecological perspective, nearshore slope areas are sensitive zones for fish spawning and coral reef growth; engineering activities must balance dynamic environmental factors with ecological protection. Therefore, accurately simulating the topography and dynamic environment of nearshore slopes and reconstructing the interaction mechanisms of waves, currents, and topography is a crucial prerequisite for avoiding structural instability and ecological damage caused by inaccurate simulations in actual engineering projects, and has significant value for both engineering practice and scientific research.

[0005] Existing test pools used to simulate nearshore slope scenarios mostly use fixed slope blocks. Fixed slopes can only simulate terrain with a specific slope, with small undulations and limited height. They cannot fully simulate the large-scale and drastic changes in slope terrain at the edges of nearshore areas and islands and reefs, resulting in a large deviation between the test conditions and the real scene. When it is necessary to simulate slope terrain at different angles, it is often necessary to disassemble and replace the slope blocks, which is complicated and time-consuming. Summary of the Invention

[0006] In view of this, the purpose of this application is to provide a gradient-adjustable nearshore slope topography simulation test pool based on dual-platform lifting, in order to solve the problem that existing test pools cannot meet the simulation requirements of nearshore slopes with different topography.

[0007] To achieve the above technical objectives, this application provides a gradient adjustable nearshore slope topography simulation test pool based on dual-platform lifting, comprising: a pool body, a first platform, a second platform, and an inclined panel;

[0008] The main body of the pool is provided with a deep pool and a shallow pool that are interconnected along the first direction.

[0009] The first platform is vertically adjustable and is positioned within the deep water pool;

[0010] The second platform is vertically mounted on the deep water pool;

[0011] The second platform is located on the side of the deep pool closer to the shallow pool, and is located between the first platform and the shallow pool;

[0012] The first platform is provided with a sliding seat whose position can be adjusted along the first direction;

[0013] The first end of the inclined panel is hinged to the side of the second platform;

[0014] The second end of the inclined plate is hinged to the sliding seat;

[0015] The test pool can be switched to at least the following states: overall level state, single gradient state, dual gradient state, and transitional state.

[0016] In the overall level state, the first platform and the second platform are level with the shallow pool;

[0017] In the single gradient state, the first platform and the second platform are flush, and a height difference is formed between the second platform and the shallow pool, with the height of the second platform being lower than the bottom surface of the shallow pool.

[0018] In the deep-shallow dual-gradient state, a height difference is formed between the first platform and the second platform, and a height difference is formed between the second platform and the shallow pool. The bottom of the shallow pool is higher than the second platform, and the second platform is higher than the first platform.

[0019] In the deep-shallow transition state, a height difference is formed between the first platform and the second platform, and the second platform is flush with the shallow pool, wherein the height of the second platform is greater than that of the first platform.

[0020] Furthermore, the test pool can also switch to lagoon mode;

[0021] In the lagoon state, a height difference is formed between the second platform and the shallow pool, and the bottom of the shallow pool is lower than the second platform.

[0022] Furthermore, a settling trough is provided on the top surface of the first platform;

[0023] The sliding seat is slidably disposed in the sink;

[0024] In the overall flush state or in the single gradient state, the inclined panel is located in the sinkhole and is flush with the second platform.

[0025] Furthermore, a pin is provided on the sliding seat;

[0026] The first platform has multiple pin holes along the first direction;

[0027] The pin extends into one of the pin holes, thereby limiting the connection between the sliding seat and the first platform.

[0028] Furthermore, the first platform and the second platform are configured as structures capable of floating on water without external force.

[0029] Furthermore, the first platform is configured to float on water when subjected to pressure less than a first preset pressure value;

[0030] The second platform is configured to float on water when subjected to pressure less than a second preset pressure value.

[0031] Furthermore, it also includes multiple winches;

[0032] Multiple winches are respectively connected to the bottom of the first platform and the second platform to control the lifting and lowering of the first platform and the second platform respectively.

[0033] Furthermore, the bottom of the deep water pool is provided with multiple pile holes;

[0034] The bottom of the first platform and the second platform are fixedly connected to multiple support columns;

[0035] The support columns are slidably installed in the pile holes, corresponding one to one.

[0036] Furthermore, a linear guide structure is provided inside the pile hole;

[0037] The support column abuts against the linear guide structure.

[0038] Furthermore, it also includes positioning posts;

[0039] The side of the deep pool is provided with multiple keyholes along the vertical direction;

[0040] Positioning holes are provided on the first platform and the second platform;

[0041] The lock hole and the positioning hole are used for the positioning post to pass through, so as to restrict the lifting and lowering of the first platform and / or the second platform.

[0042] Furthermore, a guide slide is provided on the side of the deep water pool;

[0043] The guide slide is arranged in the vertical direction;

[0044] The first platform is equipped with guide wheels on its side;

[0045] The guide wheel is slidably connected to the guide rail.

[0046] Furthermore, the guide wheel is disposed on the side of the first platform along the second direction;

[0047] The second direction is perpendicular to the first direction.

[0048] Furthermore, the deep water pool has a groove on its side along the second direction;

[0049] The first platform has an extension on its side along the second direction;

[0050] The extension portion extends into the groove;

[0051] The guide slide is provided on the groove wall along the first direction;

[0052] The extension is provided with the guide wheel, and the guide wheel on the extension abuts against the guide slide in the groove.

[0053] Furthermore, guide wheels are provided on the side of the second platform.

[0054] Furthermore, a limit buffer column is provided at the bottom of the deep water pool;

[0055] When the first platform and the second platform descend to the bottom, they abut against the limiting buffer post.

[0056] As can be seen from the above technical solutions, this application provides a gradient-adjustable nearshore slope topography simulation test pool based on dual-platform lifting, comprising: a pool body, a first platform, a second platform, and an inclined plate; a deep water pool and a shallow water pool are interconnected within the pool body along a first direction; the first platform is vertically adjustable within the deep water pool; the second platform is vertically adjustable within the deep water pool; the second platform is located on the side of the deep water pool near the shallow water pool, and is situated between the first platform and the shallow water pool; a sliding seat is provided on the first platform, its position adjustable along the first direction; the first end of the inclined plate is hinged to the side of the second platform; the second end of the inclined plate is hinged to the sliding seat; the test pool at least It can switch to the following states: overall level state, single gradient state, dual gradient state, and transition state; in the overall level state, the first platform and the second platform are level with the shallow pool; in the single gradient state, the first platform and the second platform are level, and a height difference is formed between the second platform and the shallow pool; in the dual gradient state, a height difference is formed between the first platform and the second platform, and a height difference is formed between the second platform and the shallow pool, with the shallow pool being higher than the second platform and the second platform being higher than the first platform; in the transition state, a height difference is formed between the first platform and the second platform, and the second platform is level with the shallow pool.

[0057] The test tank provided by this solution allows for the adjustment of the inclined panel angle without disassembling or replacing structural components by raising and lowering the first and second platforms. This adapts to the terrain features of different seabed slopes in nearshore areas, simplifying the operation process and shortening the switching time between operating conditions. Simultaneously, by switching states, the test tank can more accurately simulate test conditions under various complex marine topography, thus providing a reliable simulation basis for actual engineering projects. Attached Figure Description

[0058] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0059] Figure 1 A schematic diagram of a gradient-adjustable nearshore slope topography simulation test pool based on dual-platform lifting provided in this application embodiment in a generally flat state;

[0060] Figure 2A schematic diagram of a gradient-adjustable nearshore slope topography simulation test pool based on dual-platform lifting provided in this application embodiment under single gradient conditions at varying depths;

[0061] Figure 3 A schematic diagram of a gradient-adjustable nearshore slope topography simulation test pool based on dual-platform lifting and lowering provided in this application embodiment under deep and shallow dual gradient conditions;

[0062] Figure 4 A schematic diagram of a gradient-adjustable nearshore slope topography simulation test pool based on dual-platform lifting provided in this application embodiment under the state of deep-shallow transition;

[0063] Figure 5 A schematic diagram of a gradient-adjustable nearshore slope topography simulation test pool based on dual-platform lifting provided in this application embodiment in a lagoon state;

[0064] Figure 6 A schematic diagram of the first platform of a gradient-adjustable nearshore slope topography simulation test pool based on dual-platform lifting, provided for an embodiment of this application;

[0065] Figure 7 A schematic diagram of a limiting buffer column for a gradient adjustable nearshore slope topography simulation test pool based on dual-platform lifting, provided in an embodiment of this application;

[0066] Figure 8 A schematic diagram showing the connection position between the inclined panel and the first platform of a gradient adjustable nearshore slope topography simulation test pool based on dual-platform lifting, provided for an embodiment of this application;

[0067] Figure 9 A schematic diagram showing the connection between the positioning column, lock hole, and positioning hole of a gradient adjustable nearshore slope topography simulation test pool based on dual-platform lifting, provided for an embodiment of this application.

[0068] In the diagram: 100, main body of the pool; 110, deep pool; 111, groove; 112, lock hole; 120, shallow pool; 130, pile hole; 140, guide slide; 200, first platform; 201, positioning hole; 210, sliding seat; 211, pin; 220, settling trough; 230, guide wheel; 240, extension; 250, pin hole; 300, second platform; 400, inclined panel; 500, winch; 600, support column; 700, positioning column; 800, limit buffer column. Detailed Implementation

[0069] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments in this application specification, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection claimed in this application.

[0070] In the description of the embodiments of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0071] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a replaceable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0072] Please see Figures 1 to 8 This application provides a gradient-adjustable nearshore slope topography simulation test pool based on dual-platform lifting, comprising: a pool body 100, a first platform 200, a second platform 300, and an inclined panel 400; a deep pool 110 and a shallow pool 120 are interconnected within the pool body 100 along a first direction; the first platform 200 is vertically adjustable within the deep pool 110; the second platform 300 is vertically adjustable within the deep pool 110; the second platform 300 is located on the side of the deep pool 110 near the shallow pool 120, and is located between the first platform 200 and the shallow pool 120; a sliding seat 210 is provided on the first platform 200, the position of which can be adjusted along the first direction; the first end of the inclined panel 400 is hinged to the side of the second platform 300; the second end of the inclined panel 400 is hinged to the sliding seat 210; the test pool can be switched to at least the following states: overall level state, single gradient state, dual gradient state, transitional state, and lagoon state.

[0073] For ease of explanation, in the embodiments provided in this application, the main body 100 of the pool is taken as a rectangular structure, with its two mutually perpendicular sides extending along a first direction and a second direction, respectively. Specifically, the first direction can be as follows: Figure 6 The X-axis direction is shown in the figure; the second direction is as follows: Figure 6 and Figure 7 The Y-axis direction is shown in the figure.

[0074] In existing technologies, the ramp blocks can only be preset with a single slope, which requires cumbersome steps such as disassembly, transportation, and reinstallation of the ramp blocks to cope with different slope conditions, resulting in a long time consumption. In this solution, the second platform 300 can be raised and lowered independently relative to the first platform 200, thereby realizing rapid adjustment of the tilt angle of the inclined panel 400 without disassembling any structural components, thus improving the efficiency of the test.

[0075] In a completely flush state, such as Figure 1 As shown, the top surfaces of the first platform 200 and the second platform 300 are flush with the bottom surface of the shallow pool 120, forming a continuous planar terrain without height difference, which can reproduce large-area shallow pools or gentle tidal flats. In this state, it can provide a test site for the basic performance testing of floating structures in shallow water terrain, and achieve the maximum utilization of the ground area in the limited test space.

[0076] In the case of shallow and deep single gradient states, such as Figure 2 As shown, the top surfaces of the first platform 200 and the second platform 300 are flush, and a height difference exists between the second platform 300 and the shallow pool 120, with the height of the second platform 300 lower than the bottom surface of the shallow pool 120. This configuration can simulate the topography of abrupt changes in water depth (such as seabed cliffs) from deep to shallow water, thereby allowing for the study of wave propagation and breaking characteristics when waves pass through such depth changes. For example, studying the deformation and breaking process caused by the free release of higher-order harmonics of waves as they propagate from deep to shallow water can provide reliable experimental verification for cutting-edge wave nonlinear dynamics research. Furthermore, the height difference in this configuration can be flexibly adjusted by synchronously raising and lowering the two platforms, improving the adaptability and efficiency of the experiment.

[0077] In the state of deep and shallow gradients, such as Figure 3As shown, a height difference exists between the first platform 200 and the second platform 300, and also between the second platform 300 and the shallow pool 120. Furthermore, the top surface of the second platform 300 is lower than the bottom of the shallow pool 120, and the top surface of the first platform 200 is lower than the top surface of the second platform 300, creating a two-layer gradient terrain of deep water, sub-deep water, and shallow water. This configuration can simulate complex terrain with continuous height differences from deep water to nearshore slopes and then to shallow water. Moreover, by adjusting the heights of the first platform 200 and the second platform 300 and the tilt angle of the inclined panel 400, this configuration can simulate the steep slopes of different nearshore areas and adjust the height difference between the second platform 300 and the shallow pool 120. This accurately matches the multi-level transitions and abrupt changes in water depth characteristic of different sea areas, filling the technical gap in existing fixed slope blocks that cannot simulate multi-layer gradients, and providing more reliable experimental data for marine engineering design under complex terrain.

[0078] In the transition between light and dark, such as Figure 4 As shown, a height difference exists between the first platform 200 and the second platform 300, with the second platform 300 being higher than the first platform 200, and its top surface flush with the bottom of the shallow pool 120. This configuration simulates the terrain transitioning from deep to shallow water, reproducing the wave propagation and energy attenuation process as waves transition from deep to shallow water. It is particularly useful for testing the wave-damping efficiency of breakwaters under abrupt, island-like terrain changes, providing insights for breakwater length and height design. Furthermore, in this configuration, the tilt angle of the inclined panel 400 can be adjusted via the sliding seat 210, flexibly adjusting the slope between the first platform 200 and the second platform 300 to accommodate varying nearshore slopes, providing a more comprehensive scientific basis for nearshore engineering design.

[0079] In the lagoon state, such as Figure 5 As shown, a height difference exists between the second platform 300 and the shallow pool 120, with the bottom of the shallow pool 120 being lower than that of the second platform 300. From a geographical and hydrological perspective, a lagoon refers to a relatively enclosed or semi-enclosed natural or artificial body of water within a land area, typically exhibiting a basin-like structure with higher elevations around the edges and a lower center. In this configuration, the first platform 200 can be configured to be flush with or lower than the second platform 300. In the lagoon configuration, the top surface of the second platform 300 can be equivalent to the gentle slope or shoal surrounding the shallow pool 120. Combined with the flow generation module of the experimental pool, the slow-flowing environment of the lagoon can be reproduced to study the wave propagation evolution process and mechanism of the lagoon, providing conditions for simulating lagoon-specific hydrological processes (such as sediment deposition on the slope).

[0080] Based on the above, this solution, through the lifting functions of the first platform 200 and the second platform 300, combined with the angle adjustment of the inclined panel 400, can quickly adjust the slope of the inclined panel 400 and switch to different states to adapt to different working conditions. This significantly improves test efficiency while more accurately reproducing various terrains, providing test support for safety assessment and structural design of marine engineering.

[0081] In a more specific embodiment, the top surface of the first platform 200 is provided with a sinkhole 220; the sliding seat 210 is slidably disposed in the sinkhole 220; in the overall flush state or in the single gradient state, the inclined panel 400 is located in the sinkhole 220 and is flush with the second platform 300.

[0082] In this embodiment, the sink 220 can accommodate the sliding seat 210 and the inclined plate 400 to improve the flatness of the overall plane when the first platform 200 and the second platform 300 are aligned, and avoid the undulation of the inclined plate 400 itself from interfering with the test.

[0083] In one embodiment, see Figure 8 A pin 211 is provided on the sliding seat 210; a plurality of pin holes 250 are provided on the first platform 200 along the first direction; the pin 211 extends into a pin hole 250, so that the sliding seat 210 and the first platform 200 are connected in a limited position.

[0084] In this embodiment, the pin 211 can be configured as a structure that extends and retracts due to a driving component, such as being driven by a cylinder on the sliding seat 210. In other embodiments, the pin 211 can be manually installed by the operator. Specifically, in each simulation, the height of the first platform 200 and the second platform 300, and the tilt angle of the inclined panel 400 are generally fixed values. Therefore, before each test, the operator can lock the positions of the first platform 200, the second platform 300, and the inclined panel 400 by installing the pin 211, bolts, etc., before filling the pool with water. In practical applications, the first platform 200 and the second platform 300 can be raised above the water surface first, locked in place, and then lowered to the required test height for easier operation by the operator.

[0085] In practical applications, the test pool provided in this embodiment also includes various terrain simulation blocks. The terrain simulation blocks are existing terrain simulation structures that can be installed on the first platform 200, the second platform 300, or the shallow pool 120 under different conditions to more accurately simulate different terrains.

[0086] In one embodiment, the first platform 200 and the second platform 300 are configured as structures capable of floating on water without external force.

[0087] Specifically, in this embodiment, the first platform 200 and the second platform 300 can float on the water in the test pool when no external force is applied. This design reduces the pressure on the lifting drive module to raise the first platform 200 and the second platform 300 after water is injected into the pool.

[0088] In practical applications, the first platform 200 can be configured to float on the water surface when subjected to pressure less than a first preset pressure value. The second platform 300 can be configured to still float on the water surface when subjected to pressure less than a second preset pressure value.

[0089] Specifically, the first and second preset pressure values ​​can be determined according to the test requirements. With only the winch 500 installed, the winch 500 needs to apply a pulling force greater than the first preset pressure value to the first platform 200 to lower it. Similarly, the winch 500 needs to apply a pulling force greater than the second preset pressure value to the second platform 300 to lower it. Through these settings, the first platform 200 and the second platform 300 need to withstand pressures greater than the preset values ​​to fluctuate, thereby increasing the stability of the first platform 200 and the second platform 300 during the test.

[0090] In one embodiment, the lifting drive module includes multiple winches 500; the multiple winches 500 are respectively connected to the bottom of the first platform 200 and the second platform 300 to control the lifting of the first platform 200 and the second platform 300 respectively.

[0091] The lifting and adjustment process provided in this embodiment can be as follows: Initially, the first platform 200 and the second platform 300 are located at the bottom of the deep water pool 110; pulled by the winch 500, the first platform 200 and the second platform 300 remain at the bottom of the deep water pool 110. Then, the winch 500 unwinds, and the first platform 200 and the second platform 300 can rise to the desired position by their own buoyancy. The height control of the first platform 200 and the second platform 300 is controlled by different winches 500 to achieve independent lifting and lowering control.

[0092] In a further improved embodiment, the bottom of the deep pool 110 is provided with multiple pile holes 130; the bottom of the first platform 200 and the second platform 300 are fixedly connected with multiple support columns 600; the support columns 600 are slidably disposed in the pile holes 130 in a one-to-one correspondence. A linear guide structure may be provided inside the pile hole 130; the support column 600 abuts against the linear guide structure.

[0093] In this embodiment, the pile hole 130 and the support column 600 provide support and guidance for the lifting and lowering of the first platform 200 and the second platform 300. The aforementioned linear guide structure can be, for example, a linear bearing or guide rail as in the prior art, specifically enabling the linear guide structure to abut against the side of the support column 600, thereby providing support to the side of the support column 600.

[0094] In one implementation, the first platform 200 can be configured with a dimension of 30-100m along the first direction and a dimension of 20-80m along the second direction. The second platform 300 can be configured with a dimension of 8-20m along the first direction and a dimension of 20-80m along the second direction, and its dimension along the second direction can be the same length as the first platform 200. That is, in this embodiment, both the first platform 200 and the second platform 300 can have large dimensions to more accurately simulate the situation of a near-shore slope. However, since both platforms have large dimensions, if there is a slight deviation in the platform during the lifting process, it will cause a large displacement in the overall height position. For example, if the first platform 200 tilts by 0.1° along the first direction, the height difference between its two sides will reach 70-80mm. This displacement not only interferes with the test but also increases the risk of the platform getting stuck against the inner wall of the pool.

[0095] Therefore, in this embodiment, multiple support columns 600 can provide support for the lifting and lowering of the first platform 200 and the second platform 300, thereby reducing the risk of platform tilting and ensuring the stability of the lifting and lowering of the two platforms.

[0096] In one embodiment, see Figure 9 It also includes a positioning post 700; multiple lock holes 112 are provided on the side of the deep pool 110 in the vertical direction; positioning holes 201 are provided on the first platform 200 and the second platform 300; the lock holes 112 and the positioning holes 201 are used for the positioning post 700 to pass through, so as to restrict the lifting of the first platform 200 and / or the second platform 300.

[0097] As one implementation method, the positioning column 700 can be a structure that can be manually disassembled and assembled by workers.

[0098] In the embodiments provided in this application, similar to the aforementioned pin 211, the positioning pin 700 can also be configured as an electrically controlled telescopic structure on the first platform 200 and the second platform 300. It is slidably disposed in the positioning hole 201 and can be driven by a cylinder. The cylinder and the positioning pin 700 can be pre-installed inside the first platform 200 and the second platform 300. After the first platform 200 and the second platform 300 are raised or lowered into position, the cylinder drives the positioning pin 700 to extend and insert into the locking hole, achieving a limiting connection between the first platform 200 and the second platform 300 and the inner wall of the water tank, thus improving the stability of the platform during the experiment. It should be noted that this method of extending the positioning pin 700 by a cylinder is prior art, and therefore its specific structure is not shown in this embodiment.

[0099] In one embodiment, a guide slide 140 is provided on the side of the deep pool 110; the guide slide 140 is arranged in a vertical direction; a guide wheel 230 is provided on the side of the first platform 200; the guide wheel 230 is slidably connected to the guide slide 140.

[0100] The guide rail 140 provides guidance for the side of the first platform 200 to prevent the side of the first platform 200 from hitting and getting stuck against the inner wall of the pool. Correspondingly, guide wheels 230 can also be installed on the second platform 300.

[0101] In one embodiment, the guide wheel 230 is disposed on the side of the first platform 200 along the second direction.

[0102] Specifically, in the above state, the wave-generating direction of the test pool can be set along the first direction. In this embodiment, the guide wheel 230 is set on the side of the first platform 200 along the second direction, which allows the side of the first platform 200 along the first direction to be closer to the inner wall of the pool, reducing the gap between the first platform 200 and the inner wall of the pool in the first direction, and reducing the energy loss of waves at the gap.

[0103] In practical applications, wave-generating devices can also be installed on the side of the test pool along the second direction to simulate wave generation in different scenarios.

[0104] In one embodiment, the deep pool 110 has a groove 111 on its side along the second direction; the first platform 200 has an extension 240 on its side along the second direction; the extension 240 extends into the groove 111; the groove 111 has a guide slide 140 on its groove wall along the first direction; the extension 240 has a guide wheel 230, and the guide wheel 230 on the extension 240 abuts against the guide slide 140 in the groove 111.

[0105] Specifically, in this embodiment, the cooperation between the groove 111 and the extension 240 enables the first platform 200 to be supported and guided in both the second and first directions by the cooperation between the guide wheel 230 and the guide slide 140.

[0106] Furthermore, a limiting buffer column 800 is provided at the bottom of the deep pool 110; when the first platform 200 and the second platform 300 descend to the bottom, they abut against the limiting buffer column 800. The limiting buffer column 800 can provide support when the first platform 200 and the second platform 300 descend to the bottom, preventing the platforms from directly hitting the bottom of the pool.

[0107] The above are merely preferred embodiments of this application and are not intended to limit the present invention. Although this application has been described in detail with reference to examples, those skilled in the art can still modify the technical solutions described in the foregoing examples or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A gradient-adjustable nearshore slope topography simulation test pool based on dual-platform lifting, characterized in that, include: The main body of the pool (100), the first platform (200), the second platform (300) and the inclined panel (400); The main body of the pool (100) is provided with a deep pool (110) and a shallow pool (120) connected to each other along the first direction. The first platform (200) is mounted on the deep water pool (110) in a height-adjustable manner. The second platform (300) is mounted on the deep water pool (110) in a height-adjustable manner. The second platform (300) is located on the side of the deep pool (110) near the shallow pool (120), and is located between the first platform (200) and the shallow pool (120); The first platform (200) is provided with a sliding seat (210) whose position can be adjusted along the first direction. The first end of the inclined panel (400) is hinged to the side of the second platform (300); The second end of the inclined plate (400) is hinged to the sliding seat (210). The test pool can be switched to at least the following states: overall level state, single gradient state, dual gradient state, transitional state, and lagoon state. In the overall flush state, the first platform (200) and the second platform (300) are flush with the shallow pool (120); In the single gradient state, the first platform (200) and the second platform (300) are flush, and a height difference is formed between the second platform (300) and the shallow pool (120), with the height of the second platform (300) being lower than the bottom surface of the shallow pool (120). In the deep and shallow dual gradient state, a height difference is formed between the first platform (200) and the second platform (300), and a height difference is formed between the second platform (300) and the shallow pool (120). The bottom of the shallow pool (120) is higher than the second platform (300), and the second platform (300) is higher than the first platform (200). In the deep-shallow transition state, a height difference is formed between the first platform (200) and the second platform (300), and the second platform (300) is flush with the shallow pool (120), wherein the height of the second platform (300) is greater than that of the first platform (200). In the lagoon state, a height difference is formed between the second platform (300) and the shallow pool (120), and the bottom of the shallow pool (120) is lower than the second platform (300). The top surface of the first platform (200) is provided with a sinkhole (220); The sliding seat (210) is slidably disposed in the sink (220); In the overall flush state or in the single gradient state, the inclined panel (400) is located in the sinkhole (220) and flush with the second platform (300); The first platform (200) and the second platform (300) are configured as structures that can float on water without external force.

2. The gradient-adjustable nearshore slope topography simulation test pool based on dual-platform lifting as described in claim 1, characterized in that, A pin (211) is provided on the sliding seat (210); The first platform (200) is provided with a plurality of pin holes (250) along the first direction; The pin (211) extends into one of the pin holes (250), thereby limiting the connection between the sliding seat (210) and the first platform (200).

3. The gradient-adjustable nearshore slope topography simulation test pool based on dual-platform lifting as described in claim 1, characterized in that, The first platform (200) is configured to float on water when subjected to pressure less than a first preset pressure value; The second platform (300) is configured to float on the water surface when subjected to a pressure less than a second preset pressure value.

4. The gradient-adjustable nearshore slope topography simulation test pool based on dual-platform lifting as described in claim 1, characterized in that, It also includes multiple winches (500); Multiple winches (500) are respectively connected to the bottom of the first platform (200) and the second platform (300) to control the lifting and lowering of the first platform (200) and the second platform (300).

5. The gradient-adjustable nearshore slope topography simulation test pool based on dual-platform lifting as described in claim 4, characterized in that, The bottom of the deep pool (110) is provided with multiple pile holes (130). The bottom of the first platform (200) and the second platform (300) are fixedly connected to multiple support columns (600). The support columns (600) are slidably disposed in the pile holes (130) in a one-to-one correspondence.

6. The gradient-adjustable nearshore slope topography simulation test pool based on dual-platform lifting as described in claim 5, characterized in that, A linear guide structure is provided inside the pile hole (130); The support column (600) abuts against the linear guide structure.

7. The gradient-adjustable nearshore slope topography simulation test pool based on dual-platform lifting as described in claim 5, characterized in that, It also includes a positioning post (700); The side of the deep pool (110) is provided with multiple lock holes (112) in the vertical direction. Positioning holes (201) are provided on the first platform (200) and the second platform (300); The lock hole (112) and the positioning hole (201) are used for the positioning post (700) to pass through in order to restrict the lifting and lowering of the first platform (200) and / or the second platform (300).

8. The gradient-adjustable nearshore slope topography simulation test pool based on dual-platform lifting as described in any one of claims 1 to 7, characterized in that, The side of the deep pool (110) is provided with a guide slide (140). The guide slide (140) is arranged in the vertical direction; The first platform (200) is provided with guide wheels (230) on its side. The guide wheel (230) is slidably connected to the guide slide (140).

9. The gradient-adjustable nearshore slope topography simulation test pool based on dual-platform lifting as described in claim 8, characterized in that, The guide wheel (230) is disposed on the side of the first platform (200) along the second direction; The second direction is perpendicular to the first direction.

10. The gradient-adjustable nearshore slope topography simulation test pool based on dual-platform lifting as described in claim 9, characterized in that, The deep pool (110) has a groove (111) on its side along the second direction. The first platform (200) has an extension (240) on its side along the second direction. The extension (240) extends into the groove (111); The groove (111) is provided with the guide slide (140) on the groove wall along the first direction. The extension (240) is provided with the guide wheel (230), and the guide wheel (230) on the extension (240) abuts against the guide slide (140) in the groove (111).

11. The gradient-adjustable nearshore slope topography simulation test pool based on dual-platform lifting as described in claim 8, characterized in that, The second platform (300) is provided with guide wheels (230) on its side.

12. The gradient-adjustable nearshore slope topography simulation test pool based on dual-platform lifting as described in claim 1, characterized in that, The bottom of the deep water pool (110) is provided with a limiting buffer column (800). When the first platform (200) and the second platform (300) descend to the bottom, they abut against the limiting buffer post (800).

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