Equipment and method for testing stability of tower footing under different scouring and soaking working conditions

Abstract

The invention discloses equipment and a method for testing stability of a tower footing under different scouring and soaking working conditions, the equipment comprises a support, a water supply device, a test device and a purification device are arranged on the support, one end of the test device is connected with the water supply device, and the other end of the test device is connected with the purification device; the adjusting device is also arranged on the bracket, is positioned at the top of the purifying device and is connected with the testing device; the control device is electrically connected with the water supply device, the purification device and the adjusting device; wherein the test device is used for placing a test soil sample and a tower footing, the water supply device is used for conveying a water source into the test device, the purification device is used for purifying the water source flowing out of the test device, and the adjusting device is used for adjusting the operation angle of the test device, so that a scientific basis is provided for waterproof and drainage design of the tower footing in actual engineering; and the problem of tower footing instability caused by underground water level change is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of power transmission and transformation tower foundation testing, and in particular relates to a device and a method for testing the stability of a tower foundation under different flushing and soaking conditions. Background Art

[0002] In the field of large-scale equipment construction, the tower foundation plays a pivotal role and can be regarded as the key cornerstone of the entire structural system. Whether it is a towering communication tower, a power transmission tower that carries a huge power transmission task, or a basic supporting structure for other types of large-scale industrial equipment, the stability of the tower foundation directly determines whether these large-scale equipment can be successfully installed, operate stably for a long time, and ensure the safety of the surrounding environment and personnel.

[0003] Take communication towers as an example. With the rapid development of communication technology, the height and structural complexity of communication towers are constantly increasing, and the weight of the communication equipment they need to carry is also increasing. As the only support point connecting the communication tower to the ground, the tower base must have sufficient strength and stability to ensure that the communication tower can remain vertical and stable under various natural environmental conditions, such as strong winds, heavy rains, earthquakes, etc., to avoid tilting and collapse of the communication tower due to instability of the tower base, which will affect the normal transmission of communication signals and cause huge economic losses and social impacts.

[0004] The same is true for power transmission towers. As the "blood" of modern society, power transmission towers have the important mission of transmitting electricity from power plants to thousands of households and industrial users. Power transmission towers are usually distributed in a vast geographical area, facing complex and changeable geological conditions and climatic environments. The stability of the tower base is directly related to the safety and reliability of power transmission. Once there is a problem with the tower base, it will not only cause power outages in local areas, but may also cause serious safety accidents such as fires and electric shocks, posing a serious threat to people's lives and property.

[0005] Therefore, in the construction process of large equipment buildings, the testing and evaluation of the tower foundation stability is a crucial link. Only through scientific, accurate and comprehensive testing can we ensure that the design and construction quality of the tower foundation meet actual needs and provide a solid guarantee for the safe operation of large equipment.

[0006] At present, although some research and practice have been carried out in the field of tower foundation stability testing, the existing test bench equipment still has many limitations in meeting actual testing needs.

[0007] Most of the existing test bench equipment is designed based on idealized experimental conditions and it is difficult to simulate the complex working conditions faced by tower bases in actual engineering. In actual engineering, the geological environments where tower bases are located vary widely, and factors such as soil type, groundwater level, and geological structure will all have important impacts on the stability of tower bases. At the same time, tower bases are also subjected to various dynamic loads, such as wind loads, seismic loads, and equipment operation loads. However, existing test bench equipment often fails to fully consider the combined effects of these factors, resulting in a large deviation between the test results and the actual situation and being unable to provide a reliable reference basis for actual engineering.

[0008] For example, in some areas, tower bases may be built on soft soil foundations. Soft soil has characteristics such as high compressibility, low strength, and thixotropy, and is prone to large settlements and deformations under load. Existing test bench equipment may not be able to accurately simulate these characteristics of soft soil, as well as the stress state and deformation law of the tower base on the soft soil foundation, thus being unable to effectively evaluate the stability of the tower base under such special geological conditions.

[0009] Taking a method and system for determining defects in a transmission and transformation tower base disclosed in Chinese Patent CN114065489B as an example, although this invention has achieved certain innovative results in defect analysis, there are still some limitations.

[0010] This invention mainly emits elastic waves to the transmission and transformation tower base to be measured, receives the group waves after penetrating the tower base, then analyzes parameters such as the number of waves, wave duration, wave height ratio, and distortion ratio of the group waves, calculates the similarity of the complete waveform, and then determines the defect condition of the tower base. Although this method adds a quantitative analysis method for elastic wave waveforms in the defect analysis process, improves the accuracy of the detection results, and further verifies the judgment results through machine learning and big data technologies, it mainly focuses on the detection of internal defects of the tower base and fails to fully consider the influence of actual environmental working conditions on the stability of the tower base.

[0011] In actual engineering, the stability of the tower base not only depends on whether there are defects inside it, but is also closely related to external environmental factors. For example, factors such as long-term wind and rain, and temperature changes may cause changes in the physical and mechanical properties of the soil around the tower base, thereby affecting the stability of the tower base. However, the method adopted in this patent cannot simulate and analyze these external environmental factors, so it cannot make a comprehensive and accurate judgment on the stability requirements of the tower base for actual environmental working conditions.

[0012] With the continuous development of large equipment construction technology and the continuous expansion of project scale, the requirements for the stability of tower bases are also getting higher and higher. Traditional experimental test methods can no longer meet the needs of modern engineering, and there is an urgent need to develop a new type of experimental equipment that can effectively combine various real working conditions and comprehensively and accurately test the stability of tower base structures. Summary of the Invention

[0013] The object of the present invention is to provide a device and method for testing the stability of a tower foundation under different scouring and soaking conditions, so as to solve the technical defect in the prior art that the stability of the tower foundation cannot be simulated and analyzed in combination with external environmental factors.

[0014] To achieve the above object, the present invention adopts the following technical solutions: In a first aspect, a device for testing the stability of a tower foundation under different scouring and soaking conditions is provided, including: A bracket, on which a water supply device, a test device and a purification device are provided. One end of the test device is connected to the water supply device, and the other end is connected to the purification device; An adjusting device, which is also arranged on the bracket, is located on top of the purification device and is connected to the test device; A control device, which is electrically connected to the water supply device, the purification device and the adjusting device; Wherein, the test device is used for placing the test soil sample and the tower foundation, the water supply device is used for conveying water source into the test device, the purification device is used for purifying the water source flowing out of the test device, and the adjusting device is used for adjusting the working angle of the test device.

[0015] Further, the water supply device and the test device are located at one end and the other end of the bracket respectively, and the test device is located below the water supply device, and the purification device is located at the bottom of the test device.

[0016] Further, the water supply device includes a water tank, a pipeline is provided on the water tank, one end of the pipeline faces the inside of the water tank, and the other end extends to the bottom of the bracket and is connected to the purification device; One end of the water tank close to the test device has a water outlet, a water flow plate is provided on the water outlet, and the end of the water flow plate is connected to the test device.

[0017] Further, the water flow plate is inclined, side baffles are provided on both opposite sides of the water flow plate, and a plurality of flow stabilizer plates are sequentially arranged at intervals in the direction perpendicular to the axial direction of the side baffles inside the water flow plate.

[0018] Further, a water flow speed sensor is provided at one end of the water flow plate close to the test device.

[0019] Further, the test device includes a test tank. One end of the test tank close to the water flow speed sensor has a water inlet, and a water outlet channel is opened at the other end of the test tank away from the water flow speed sensor. Both the water inlet and the water outlet channel are communicated with the inside of the test tank; A water outlet joint is installed on the water outlet channel, and the end of the water outlet joint is connected to the purification device.

[0020] Further, a heating plate is provided outside the test tank.

[0021] Further, the adjusting device includes a track bottom plate, and moving brackets are symmetrically installed inside the track bottom plate. The tops of the two moving brackets are connected by a track top plate, and the test device is arranged on the track top plate.

[0022] Further, a hydraulic cylinder is installed on one of the moving brackets, and the end of the hydraulic cylinder is connected to the track bottom plate.

[0023] In a second aspect, a method for using a device for testing the stability of a tower foundation under different scouring and soaking conditions is provided. The method is carried out by using the device for testing the stability of a tower foundation under different scouring and soaking conditions as described above, and includes: Previously placing the test soil sample and the tower foundation to be tested in the test device; Using the control device to adjust the operating parameters of the water supply device and the adjusting device in real time; Observing the stability of the tower foundation under different working conditions.

[0024] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the coordinated work of the water supply device, the test device and the purification device arranged on the bracket, the device realizes the accurate simulation of different water level conditions. The water supply device can convey water sources to the test device according to the preset flow rate and time, simulating the rising process of groundwater. The purification device purifies the water sources flowing out of the test device, enabling the recycling of water resources. At the same time, it accurately controls the water content in the test device, simulating the soil environment under different humidity conditions. In this way, the stability of the tower foundation under different groundwater level conditions can be comprehensively evaluated, providing a scientific basis for the waterproof and drainage design of the tower foundation in actual projects and avoiding the problem of tower foundation instability caused by changes in the groundwater level.

[0025] 2. The water supply device is located at one end of the bracket and the test device is below it. This layout conforms to the law that water flows from high to low under natural conditions. When simulating the influence of changes in the groundwater level on the stability of the tower foundation, the water supply device can simulate water source inputs such as rainfall and groundwater recharge, and the water naturally flows into the lower test device, making the change process of the water content of the soil sample in the test device closer to the real situation of the rising groundwater level in actual projects, improving the accuracy and reliability of simulating the groundwater level conditions.

[0026] 3. A pipeline is arranged on the water tank, with one end facing the inside of the water tank and the other end extending to the bottom of the bracket and connected to the purification device. This design enables the water tank not only to supply water to the test device but also to drain the excess or purified water to the purification device through the pipeline, forming a circulating water supply system.

[0027] 4. The water flow plate is inclined. By changing the inclination angle, the flow rate and velocity of water flowing into the test device can be precisely controlled. When simulating different intensities of precipitation or the rising speed of the groundwater level, simply adjusting the inclination degree of the water flow plate can change the falling speed and flow rate of water under the action of gravity, thus achieving precise simulation of various hydrological conditions.

[0028] 5. In traditional experiments, it is often difficult to directly and accurately measure the water flow velocity, which often leads to certain deviations between the experimental results and the actual situation. After setting up the water flow velocity sensor, the change of the water flow velocity can be monitored in real time, and the water flow velocity fluctuations caused by unstable water supply or other factors can be detected and corrected in time, reducing experimental errors and making the experimental results closer to the real situation, providing a more accurate data basis for the study of tower foundation stability.

[0029] 6. The water inlet is arranged at one end of the test tank close to the water flow velocity sensor, so that the water flow has completed the velocity measurement and regulation through the sensor before entering the test tank.

[0030] 7. By setting up a heating plate, the temperature changes of the test soil sample and the external environment of the tower foundation can be adjusted in real time according to the test needs. Description of the Drawings

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0032] Figure 1 It is a schematic diagram of the overall structure of the device for testing the stability of the tower foundation under different scouring and soaking conditions provided by the present invention; Figure 2 It is a bottom view of the device for testing the stability of the tower foundation under different scouring and soaking conditions provided by the present invention; Figure 3 It is a side view of the device for testing the stability of the tower foundation under different scouring and soaking conditions provided by the present invention; Figure 4 It is a three-dimensional view of the adjusting device in the device for testing the stability of the tower foundation under different scouring and soaking conditions provided by the present invention; Wherein: 1. mounting rack; 11. water tank rack; 12. connecting rack; 13. test rack; 2. water tank; 21. water outlet; 3. test tank; 31. test soil sample; 32. tower base; 33. heating plate; 34. water outlet channel; 35. water outlet joint; 36. pipeline; 37. valve; 38. mud and water outlet; 39. water inlet; 4. water quality purification tank; 5. booster pump; 6. water flow plate; 61. side baffle; 62. flow stabilizing plate; 7. lifting platform; 71. track bottom plate; 72. moving support; 73. hydraulic cylinder; 74. track top plate; 8. water flow velocity sensor. Detailed implementation manners

[0033] 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. Apparently, the described embodiments are some but not all of the embodiments of the present invention. The components of the embodiments of the present invention described and illustrated herein can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0035] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0036] In the description of the embodiments of the present invention, it should be noted that if terms such as "upper", "lower", "horizontal", "inner", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, terms such as "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0037] In addition, if the term "horizontal" appears, it does not mean that the component is required to be absolutely horizontal, but it can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but it can be slightly inclined.

[0038] In the description of the embodiments of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0039] To solve the technical defects mentioned in the background art, this embodiment provides a device and method for testing the stability of a tower foundation under different scouring and soaking conditions. The present invention will be further described in detail below with reference to the accompanying drawings: In a first aspect, an embodiment of the present invention provides a device for testing the stability of a tower foundation under different scouring and soaking conditions, as Figures 1 - 4 shown, including a bracket, on which a water supply device, a test device, and a purification device are provided. One end of the test device is connected to the water supply device, and the other end is connected to the purification device; an adjustment device is also provided on the bracket and is located on top of the purification device and connected to the test device; a control device is electrically connected to the water supply device, the purification device, and the adjustment device; wherein, the test device is used to place the test soil sample 31 and the tower foundation 32, the water supply device is used to convey water sources to the test device, the purification device is used to purify the water sources flowing out of the test device, and the adjustment device is used to adjust the working angle of the test device.

[0040] In the above structure, the water supply device is connected to the test device, and the flow rate, flow velocity, and conveying time of the water source conveyed to the test device can be accurately controlled according to different test requirements. This enables accurate simulation of the scenarios of the rising, falling, or stabilizing of the groundwater level at different heights when simulating the change of the groundwater level where the tower foundation 32 is located. For example, when simulating the impact of the rapid rise of the groundwater level during the rainy season on the stability of the tower foundation 32, the water supply flow rate can be quickly increased, so that the water content of the test soil sample 31 in the test device reaches the preset value in a short time, truly restoring the situation where the water content of the soil around the tower foundation 32 in the actual project increases sharply due to rainfall.

[0041] The purification device is connected to the other end of the test device, purifies the outflowing water source and then recycles it, which not only saves water resources, but also accurately controls the purity and composition of the water in the test device through the purification process, avoiding interference of impurities on the test results; at the same time, the purification device can adjust the discharged water volume, cooperate with the water supply device, and accurately control the water content in the test device to ensure that the simulated groundwater level condition is stable and meets the experimental requirements.

[0042] The adjustment device is located at the top of the purification device and is connected to the test device. Under the control of the control device, it can adjust the working angle of the test device multi-angularly and with high precision. It can simulate different degrees of inclination of the tower base 32 under factors such as different geological settlements and seismic actions, such as slight inclination, moderate inclination, and even large-angle inclination close to collapse. By precisely adjusting the inclination angle, the stress distribution, deformation characteristics, and stability change laws of the tower base 32 in different inclination states are deeply studied, providing a scientific basis for the rectification and reinforcement of the tower base 32 in actual projects.

[0043] In this embodiment, by integrating the water supply device, the test device, the purification device, the adjustment device, and the control device on a bracket to form a compact and complete test system, this integrated design reduces the floor area of the equipment and facilitates installation and use in a limited space in the laboratory or on-site. At the same time, the control device is electrically connected to each component, and the operator can centrally control the start and stop of the water supply device, the flow rate adjustment, the purification mode and speed of the purification device, and the angle adjustment of the adjustment device through a control interface, without separately operating each component, reducing the operation difficulty and complexity. Even non-professionals can master the equipment operation method in a short time.

[0044] Since the control device has an automatic control function, it can automatically complete the experimental process according to the preset experimental scheme. For example, in the experiment of simulating the influence of the periodic change of the groundwater level on the stability of the tower base 32, the water supply time and the flow rate change law of the water supply device, as well as the start and stop time of the purification device, can be set, so that the equipment can automatically complete the entire experimental process without manual real-time intervention, not only improving the experimental efficiency, but also reducing the human operation error and ensuring the accuracy and consistency of the experimental results. And the control device can real-time monitor the running state and experimental parameters of each component, such as the water supply flow rate, the purification speed, the angle of the test device, etc. Once it is found that the parameters deviate from the preset values, it can be automatically adjusted to ensure that the experiment is always carried out under the set working conditions. At the same time, the operator can view the experimental data and running state in real time through the display screen of the control device, timely master the progress of the experiment, and dynamically adjust and optimize the experimental process.

[0045] Furthermore, the water supply device and the test device are located at one end and the other end of the bracket respectively, and the test device is located below the water supply device, and the purification device is located at the bottom of the test device. This positional relationship conforms to the law that water flows from high to low under natural conditions. When simulating the influence of the change of the groundwater level on the stability of the tower base 32, the water supply device can simulate the input of water sources such as rainfall and groundwater recharge, and the water naturally flows into the lower test device, making the change process of the water content of the test soil sample 31 in the test device closer to the real situation of the rise of the groundwater level in actual projects, improving the accuracy and reliability of simulating the groundwater level working conditions.

[0046] In addition, the purification device is located at the bottom of the test device, simulating the process of groundwater discharging from the bottom of the tower foundation 32 after permeating through the soil in actual engineering. During the test, water enters the test device from the water supply device, permeates through the soil sample, simulating the seepage path of groundwater, and finally flows out from the purification device at the bottom. This simulation of the water flow path is more in line with the hydrological cycle under natural geological conditions, which helps to more accurately study the stability of the tower foundation 32 under different groundwater levels and seepage conditions.

[0047] In this embodiment, the water supply device includes a water tank 2. A pipeline 36 is provided on the water tank 2. One end of the pipeline 36 faces the inside of the water tank 2, and the other end extends to the bottom of the bracket and is connected to the purification device. One end of the water tank 2 close to the test device has a water outlet 21. A water flow plate 6 is provided on the water outlet 21, and the end of the water flow plate 6 is connected to the test device. The water tank 2 can not only supply water to the test device, but also drain the excess or purified water to the purification device through the pipeline 36 to form a circulating water supply system. During the test, according to the test requirements, by adjusting the valve 37 on the pipeline, the proportion of the water volume entering the purification device can be flexibly controlled, accurately simulating the water consumption requirements of the tower foundation 32 under different groundwater levels, seepage velocities and other working conditions.

[0048] Secondly, a water outlet 21 is provided at one end of the water tank 2 close to the test device. A water flow plate 6 is arranged on the water outlet 21, and the end of the water flow plate 6 is connected to the test device. The water flow plate 6 can change the water flow direction and flow distribution. For example, by adjusting the inclination angle or the opening size of the water flow plate 6, the water volume entering different areas of the test device can be controlled, simulating the influence of uneven changes in the groundwater level on different parts of the tower foundation 32, making the experimental water supply more in line with the actual complex situation.

[0049] The water flow plate 6 is inclined. Side baffles 61 are provided on the two opposite sides of the water flow plate 6. In the direction perpendicular to the axial direction of the side baffles 61 inside the water flow plate 6, a plurality of flow stabilizer plates 62 are arranged at intervals in sequence. A water flow velocity sensor 8 is provided at the end of the water flow plate 6 close to the test device.

[0050] Since the water flow plate 6 is inclined, the flow rate and velocity of the water flowing into the test device can be accurately controlled by changing the inclination angle. When it is necessary to simulate different intensities of precipitation or the rising speed of the groundwater level, only by adjusting the inclination degree of the water flow plate 6, the falling speed and flow rate of the water under the action of gravity can be changed, realizing the accurate simulation of various hydrological working conditions. A plurality of flow stabilizer plates 62 are arranged at intervals inside the water flow plate 6, and the flow stabilizer plates 62 are perpendicular to the axial direction of the side baffles 61, further refining the flow rate adjustment. The flow stabilizer plates 62 can block and divide the water flow. By adjusting the height, spacing or shape of the flow stabilizer plates 62, the water flow rate can be finely adjusted in a local area, making the water flow distribution more uniform and meeting the different requirements of the tower foundation 32 at different positions for water flow conditions.

[0051] On opposite sides of the water flow plate 6, side baffles 61 are provided, effectively preventing water flow from overflowing to both sides during the flowing process. During the water supply process, the water flow is restricted by the side baffles 61 and always flows along the surface of the water flow plate 6, ensuring the consistency and stability of the water flow direction and avoiding inaccurate flow rate and experimental errors caused by lateral dissipation of the water flow. The setting of multiple flow stabilizer plates 62 can suppress the fluctuations and turbulences generated during the flowing process of the water flow. When the water flow passes through the flow stabilizer plates 62, it will be blocked and combed by the flow stabilizer plates 62, making the water flow speed and direction more uniform, reducing the degree of water flow disorder, improving the stability of the water flow, providing a stable water flow environment for the test soil sample 31 and the tower foundation 32 in the test device, and ensuring the reliability of the experimental results.

[0052] Moreover, the inclined water flow plate 6, in cooperation with the side baffles 61 and the flow stabilizer plates 62, can simulate the seepage path of groundwater in different geological layers under natural conditions. When the water flow flows on the water flow plate 6, due to the existence of the flow stabilizer plates 62, a layered seepage effect similar to that in natural geological layers will be formed, making the distribution of the water flow in the test device more in line with the actual geological situation and providing a more realistic simulation environment for studying the stability of the tower foundation 32 under different seepage conditions.

[0053] In this embodiment, a water flow speed sensor 8 is provided at one end of the water flow plate 6 close to the test device. The water flow speed sensor 8 can measure the water flow speed at one end close to the test device in real time and accurately, providing intuitive and reliable data support for experimental personnel. When simulating different working conditions such as changes in groundwater level and rainfall intensity, the parameters of the water supply device, such as the water supply flow rate, can be adjusted in a timely manner according to the water flow speed data fed back by the water flow speed sensor 8 to ensure that the water flow speed entering the test device meets the test requirements, thereby improving the accuracy and reliability of the experiment.

[0054] In this embodiment, the test device includes a test tank 3. One end of the test tank 3 close to the water flow speed sensor 8 has a water inlet 39, and the other end of the test tank 3 far from the water flow speed sensor 8 is provided with a water outlet channel 34. Both the water inlet 39 and the water outlet channel 34 are communicated with the inside of the test tank 3. A water outlet joint 35 is installed on the water outlet channel 34, and the end of the water outlet joint 35 is connected to a purification device through a pipeline 36. A valve 37 is installed on the pipeline 36, and the valve 37 is connected to the mud water outlet 38.

[0055] In this embodiment, a heating plate 33 is provided outside the test tank 3, and the temperature of the test soil sample 31 is further adjusted by adjusting the temperature of the heating plate 33, so as to further improve the test simulation.

[0056] In this embodiment, the adjusting device includes a lifting platform 7. The lifting platform 7 includes a track bottom plate 71. Inside the track bottom plate 71, moving brackets 72 are symmetrically installed. The tops of the two moving brackets 72 are connected by a track top plate 74. The test device is arranged on the track top plate 74. A hydraulic cylinder 73 is installed on one of the moving brackets 72, and the end of the hydraulic cylinder 73 is connected to the track bottom plate 71. When the piston of the hydraulic cylinder 73 extends or contracts, it will cause the moving bracket 72 to move, thereby increasing or decreasing the distance between the track bottom plate 71 and the track top plate 74, and further causing the test tank 3 to tilt, so that the tower base 32 in the test tank 3 tilts.

[0057] In this embodiment, the purification device includes a water quality purification tank 4, and a booster pump 5 is installed at the bottom of the water quality purification tank 4.

[0058] In this embodiment, the bracket is a mounting frame 1. The mounting frame 1 includes a water tank frame 11, a connecting frame 12, and a test frame 13.

[0059] Second, a method for using a device for testing the stability of a tower base under different scouring and soaking conditions is provided. The method is carried out by using the device for testing the stability of a tower base under different scouring and soaking conditions as described above, and includes: Step 1: Place the test soil sample and the tower base to be tested in the test device in advance; Step 2: Use the control device to adjust the operating parameters of the water supply device and the adjusting device in real time; Step 3: Observe the stability of the tower base under different scouring and soaking conditions.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the scope of its protection. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: after reading the present invention, those skilled in the art can still make various changes, modifications or equivalent replacements to the specific implementation manners of the invention, but these changes, modifications or equivalent replacements are all within the scope of the protection of the claims pending for the invention.

Claims

1. An apparatus for testing the stability of a tower foundation under different scouring and soaking conditions, characterized in that Comprising: A support on which a water supply device, a test device and a purification device are provided. One end of the test device is connected to the water supply device, and the other end is connected to the purification device; An adjustment device, which is also arranged on the support, located at the top of the purification device and connected to the test device; A control device, electrically connected to the water supply device, the purification device and the adjustment device; Wherein, the test device is used for placing test soil samples and tower bases, the water supply device is used for conveying water sources into the test device, the purification device is used for purifying the water sources flowing out of the test device, and the adjustment device is used for adjusting the working angle of the test device.

2. The device for testing the stability of the tower foundation under different scouring and soaking conditions according to claim 1, wherein The water supply device and the test device are located at one end and the other end of the support respectively, and the test device is located below the water supply device, and the purification device is located at the bottom of the test device.

3. The device for testing the stability of the tower foundation under different scouring and soaking conditions according to claim 1 or 2, characterized in that, The water supply device includes a water tank, on which a pipeline is provided. One end of the pipeline faces the inside of the water tank, and the other end extends to the bottom of the support and is connected to the purification device; One end of the water tank close to the test device has a water outlet, on which a water flow plate is provided, and the end of the water flow plate is connected to the test device.

4. The device for testing the stability of the tower foundation under different scouring and soaking conditions according to claim 3, wherein, The water flow plate is inclined, and side baffles are provided on the two opposite sides of the water flow plate. In the direction perpendicular to the axial direction of the side baffles inside the water flow plate, a plurality of flow stabilizer plates are arranged at intervals in sequence.

5. The device for testing the stability of a tower foundation under different scouring and soaking conditions according to claim 3, characterized in that, A water flow speed sensor is provided at the end of the water flow plate close to the test device.

6. The device for testing the stability of a tower foundation under different scouring and soaking conditions according to claim 5, wherein, The test device includes a test tank. One end of the test tank close to the water flow speed sensor has a water inlet, and an outlet channel is opened at the end of the test tank far from the water flow speed sensor. Both the water inlet and the outlet channel are communicated with the inside of the test tank; An outlet joint is installed on the outlet channel, and the end of the outlet joint is connected to a purification device.

7. The device for testing the stability of the tower foundation under different scouring and soaking conditions according to claim 6, wherein A heating plate is provided outside the test tank.

8. The device for testing the stability of the tower foundation under different scouring and soaking conditions according to claim 1, wherein, The adjustment device includes a track bottom plate, on the inner side of which moving brackets are symmetrically installed. The tops of the two moving brackets are connected by a track top plate, and the test device is arranged on the track top plate.

9. The device for testing the stability of the tower foundation under different scouring and soaking conditions according to claim 8, characterized in that, A hydraulic cylinder is installed on one of the moving brackets, and the end of the hydraulic cylinder is connected to the track bottom plate.

10. A method for using a device to test the stability of a tower foundation under different scouring and soaking conditions, characterized in that, The method is carried out by using the equipment for testing the stability of a tower base under different scouring and soaking conditions described in any one of claims 1-9, and includes: Pre-placing test soil samples and the tower base to be tested in the test device; Using the control device to adjust the operating parameters of the water supply device and the adjustment device in real time; Observing the stability of the tower base under different working conditions of scouring and soaking.

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