Anchored foundation multi-directional loading test device applied to centrifuge

Abstract

The application discloses an anchoring foundation multidirectional loading test device applied to a centrifuge, which comprises a model frame, a sliding mechanism, a mooring line, a loading mechanism and a model anchor; the sliding mechanism comprises a moving assembly, a pulley assembly, a circular track and a plurality of tension cable displacement sensor assemblies; the circular track is installed at a moving end of the moving assembly, and the moving assembly is installed on the model frame; the pulley assembly is rotationally connected to the circular track; the mooring line is wound on the pulley assembly; the loading mechanism comprises an actuator and a tension and pressure sensor; the tension and pressure sensor is installed at an output end of the actuator; the mooring line is connected to the tension and pressure sensor through a connecting ring; the actuator is used for driving the connecting ring to lift and move along the tangent direction of the circular track; and the model anchor comprises an inclination sensing assembly, a universal joint assembly and an anchor body assembly. The application can realize accurate control of a model anchoring foundation and multidirectional load application, improves the flexibility and accuracy of experiments, and improves the test efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the offshore wind power technology field, and particularly relates to an anchoring foundation multi-directional loading test device applied to a centrifuge. BACKGROUND

[0002] With the transformation of global energy structure, actively promoting the development of offshore wind power industry has become a key strategic measure to realize green and low-carbon development. However, in the deep sea area, the extreme marine environmental conditions put forward more stringent requirements on the stability and reliability of offshore wind power facilities. Anchoring foundations are the key components connecting offshore structures and seabed, and they must be able to withstand complex marine environmental loads, including horizontal and vertical loads generated by waves, currents, wind and earthquakes. These loads are usually multi-directional, cyclic and random, which poses a severe challenge to the design and performance evaluation of anchoring foundations. When designing these foundations, not only the design requirements of the one-way static ultimate bearing capacity should be met, but also the key response characteristics such as displacement accumulation and stiffness change of the foundation in the whole life cycle under the action of external multi-directional and cyclic loads should be accurately evaluated. These characteristics are directly related to the normal operation and safety of offshore structures.

[0003] In the prior art, as a kind of scale model test method, the centrifuge model test can reflect the mechanical behavior of the prototype structure in the actual environment by simulating the scaling of the earth's gravitational field. In the centrifuge, the centrifugal force generated by high-speed rotation is applied to the reduced scale physical model to amplify the gravitational acceleration, so as to restore the stress level of the model soil to the prototype soil and reflect the same mechanical behavior. Although the centrifuge model test has been widely used in marine engineering, most of the existing researches are focused on single-direction static or cyclic load tests. The existing centrifuge test device lacks the ability of multi-directional loading, which limits the research on the failure mechanism and performance degradation law of anchoring foundations under multi-directional load.

[0004] Therefore, a centrifuge anchoring foundation multi-directional loading test device is provided. SUMMARY

[0005] The purpose of the present application is to provide a centrifuge anchoring foundation multi-directional loading test device, which aims to solve or improve at least one of the above technical problems.

[0006] To achieve the above purpose, the present application provides the following scheme: the present application provides a centrifuge anchoring foundation multi-directional loading test device, which comprises:

[0007] a model frame;

[0008] The sliding mechanism comprises a moving assembly, a pulley assembly, a circular track and a plurality of tension cable displacement sensor assemblies; the circular track is installed at the moving end of the moving assembly, the moving assembly is installed on the model frame, and is used for adjusting the height and horizontal position of the circular track; the pulley assembly is rotationally connected to the circular track;

[0009] A mooring line is wound around the pulley assembly.

[0010] The loading mechanism comprises an actuator and a tension and pressure sensor; the tension and pressure sensor is installed at the output end of the actuator; the mooring line is connected with the tension and pressure sensor through a connecting ring, and the actuator is used to drive the connecting ring to ascend and descend and to drive the connecting ring to move along the tangent direction of the circular track.

[0011] The model anchor comprises an inclination sensing assembly, a universal joint assembly and an anchor body assembly; the universal joint assembly is installed between the inclination sensing assembly and the anchor body assembly, and the universal joint assembly is installed at the bottom of the mooring line.

[0012] A plurality of the tension cable displacement sensor assemblies are installed between the circular track and the anchor body assembly.

[0013] According to the anchor foundation multi-directional loading test device applied to the centrifuge provided by the application, the anchor body assembly comprises:

[0014] The universal joint assembly is installed at the top of the anchor body.

[0015] A plurality of wing plates are installed on the outer sidewall of the anchor body.

[0016] A plurality of anchor eyes are installed at the bottom of the sidewall of the anchor body, a plurality of the tension cable displacement sensor assemblies are arranged one by one, and the bottom of the tension cable displacement sensor assembly is fixedly connected with the anchor eye.

[0017] According to the anchor foundation multi-directional loading test device applied to the centrifuge provided by the application, the pulley assembly comprises:

[0018] An inner side sliding part is rotationally connected to the circular track

[0019] A pulley connecting frame is installed at one end of the inner side sliding part.

[0020] An outer side pulley is installed on the pulley connecting frame through a connecting rod; a limiting groove is formed at one end of the outer side pulley close to the inner side sliding part, and the mooring line is wound around the limiting groove of the outer side pulley.

[0021] The application discloses an anchor foundation multi-directional loading test device applied to a centrifuge.

[0022] The application discloses an anchor foundation multi-directional loading test device applied to a centrifuge.

[0023] The application discloses an anchor foundation multi-directional loading test device applied to a centrifuge.

[0024] The application discloses an anchor foundation multi-directional loading test device applied to a centrifuge.

[0025] The application discloses an anchor foundation multi-directional loading test device applied to a centrifuge.

[0026] The application discloses an anchor foundation multi-directional loading test device applied to a centrifuge.

[0027] The triangular support plates are installed between the short side beams and the vertical beams and between the long side beams and the vertical beams.

[0028] The present application discloses the following technical effects:

[0029] The model frame supports the entire test device, the moving assembly is installed on the model frame, the height and horizontal position of the circular track can be adjusted to adapt to different test requirements, the actuator is used to drive the connecting ring to rise and fall and move along the tangent direction of the circular track, so that multi-directional loading of the model anchor is realized, the tension and compression sensor can measure the load applied by the actuator and the displacement of the mooring line in the direction of the mooring line, and the sliding mechanism and the loading mechanism can realize accurate control and multi-directional load application of the model anchor foundation, so that the flexibility and accuracy of the experiment are improved.

[0030] The universal joint assembly can realize multi-degree-of-freedom rotation of the connection between the mooring line and the anchor body assembly, reduces the torque load borne by the foundation, and improves the accuracy and reliability of the experimental results; the inclination sensing assembly is used to monitor the inclination angle of the anchor body to evaluate the stability of the anchor body under multi-directional load.

[0031] The present application can realize multi-directional loading, provides more accurate experimental data for the design and performance evaluation of the anchor foundation, and enhances the stability and reliability of the foundation in complex marine environments; the overall structure of the present application is reasonably designed, easy to install, has strong applicability, and is convenient for rapid deployment and use, and the single actuator improves the test efficiency.

[0032] During the test, the model anchor is first installed at the specified position by the ballast method, then the height and position of the circular track are adjusted by the moving assembly, the tension cable displacement sensing assembly is connected to monitor the displacement change of the model anchor in three spatial coordinate directions in real time, the mooring line is connected to the model anchor to ensure the stability of the connection, and finally the position of the loading device is adjusted by the actuator to make the pulley structure move along the circular track, so that the multi-directional loading and detection of the model anchor under the simulated marine environment can be realized by the movement of the single actuator, the complex load conditions in the marine environment are simulated, the response characteristics of the anchor foundation in the whole life cycle are more comprehensively evaluated, and the growing demand for offshore wind power generation is met. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0034] Figure 1 isometric view of the anchor of the present invention Figure I ;

[0035] Figure 2 isometric view of the anchor of the present invention Figure II ;

[0036] Figure 3 is a partial enlarged view of A in the figure Figure 2 ;

[0037] Figure 4 is a schematic view of the structure of the model anchor in the present invention

[0038] Figure 5 is a schematic view of the connection between the pulley assembly and the loading mechanism in the present invention Figure I ;

[0039] Figure 6 is a schematic view of the connection between the pulley assembly and the loading mechanism in the present invention Figure II .

[0040] 1, circular orbit; 2, mooring line; 3, connecting ring; 4, actuator; 5, actuator connecting piece; 6, tension and pressure sensor; 7, anchor body; 8, wing plate; 9, anchor eye; 10, inner side sliding part; 11, pulley connecting frame; 12, outer side pulley; 13, limiting groove; 14, short side beam; 15, long side beam; 16, vertical beam; 17, short side cross beam; 18, long side cross beam; 19, circular cross beam; 20, vertical connecting rod; 21, tension cable displacement sensor; 22, inclination sensor; 23, inclination sensor connecting piece; 24, universal joint connecting piece; 25, universal joint body; 26, tension cable connecting piece; 27, tension cable; 28, triangular support plate. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0042] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments. Embodiment 1

[0043] With reference to Figures 1-6 , the present application provides an anchor foundation multi-directional loading test device applied to a centrifuge, comprising:

[0044] a model frame;

[0045] The sliding mechanism comprises a moving assembly, a pulley assembly, a circular track 1 and a plurality of tension cable displacement sensing assemblies; the circular track 1 is installed at the moving end of the moving assembly, the moving assembly is installed on the model frame, and the height and horizontal position of the circular track 1 are adjusted; the pulley assembly is rotationally connected to the circular track 1;

[0046] The mooring line 2 is arranged on the pulley assembly;

[0047] The loading mechanism comprises an actuator 4 and a tension and compression sensor 6; the tension and compression sensor 6 is installed at the output end of the actuator 4; the mooring line 2 is connected with the tension and compression sensor 6 through the connecting ring 3, and the actuator 4 is used to drive the connecting ring 3 to ascend and descend and move along the tangent direction of the circular track 1; in the embodiment, the connecting ring 3 is an M16 connecting ring, which is used to transmit the load applied by the actuator 4; the actuator 4 can move in all directions, when moving in the up-down direction, the load along the mooring line 2 is applied to the foundation, and when moving along the tangent direction of the circular track 1, the pulley assembly can be moved to any position along the circular track 1; the tension and compression sensor 6 can measure the displacement of the load applied by the actuator 4 and the mooring line 2 along the direction of the mooring line 2;

[0048] The model anchor comprises an inclination sensing assembly, a universal joint assembly and an anchor body assembly; the universal joint assembly is installed between the inclination sensing assembly and the anchor body assembly, and the universal joint assembly is installed at the bottom of the mooring line 2;

[0049] The plurality of tension cable displacement sensing assemblies are installed between the circular track 1 and the anchor body assembly;

[0050] In this way, the whole test device is supported by the model frame, the moving assembly is installed on the model frame, the height and horizontal position of the circular track 1 can be adjusted to adapt to different test requirements, the actuator 4 is used to drive the connecting ring 3 to ascend and descend and move along the tangent direction of the circular track 1, thereby realizing multi-directional loading of the model anchor, the tension and compression sensor 6 can measure the displacement of the load applied by the actuator 4 and the mooring line 2 along the direction of the mooring line 2, and the sliding mechanism and the loading mechanism can realize accurate control and multi-directional load application of the model anchor foundation, thereby improving the flexibility and accuracy of the experiment;

[0051] The universal joint assembly of the present application can realize multi-degree-of-freedom rotation of the connection between the mooring line 2 and the anchor body assembly, thereby reducing the torque load borne by the foundation and improving the accuracy and reliability of the experimental results; the inclination sensing assembly is used to monitor the inclination angle of the anchor body, so as to evaluate the stability of the anchor body under multi-directional load;

[0052] The application can realize multidirectional loading, provide more accurate experimental data for the design and performance evaluation of the anchoring foundation, and enhance the stability and reliability of the foundation in complex marine environments; the overall structure of the application is reasonably designed, easy to install, has strong applicability, and is convenient for rapid deployment and use, and the single actuator improves the test efficiency;

[0053] In the test, the model anchor is first installed at the specified test position by the ballast method, then the height and position of the circular track 1 are adjusted by the moving assembly, the pull line displacement sensing assembly is connected to monitor the displacement change of the model anchor in three spatial coordinate directions in real time, the mooring line 2 is connected to the model anchor to ensure the stability of the connection, and finally the position of the loading device is adjusted by the actuator 4 to move the pulley structure along the circular track 1, so that the multidirectional loading and detection of the model anchor under the simulated marine environment can be realized by the movement of the single actuator 4, the complex load conditions in the marine environment are simulated, and the response characteristics of the anchoring foundation in the whole life cycle are more comprehensively evaluated to meet the growing demand for offshore wind power generation.

[0054] Further optimization scheme, the anchor body assembly comprises:

[0055] The anchor body 7, the universal joint assembly is installed at the top of the anchor body 7;

[0056] The wing plate 8 is provided with a plurality of wing plates 8, and the plurality of wing plates 8 are installed on the outer side wall of the anchor body 7 at intervals;

[0057] The anchor eye 9 is provided with a plurality of anchor eyes 9, and the plurality of anchor eyes 9 are installed at the bottom of the side wall of the anchor body 7, and the plurality of anchor eyes 9 are arranged in one-to-one correspondence with the plurality of pull line displacement sensing assemblies, and the bottom of the pull line displacement sensing assembly is fixedly connected with the anchor eye 9;

[0058] In the embodiment, the number of wing plates 8 is preferably three, the wing plates 8 can improve the torsional bearing capacity of the foundation structure, the height of the wing plate 8 is the same as the height of the anchor body 7, and the thickness of the wing plate 8 is the same as the thickness of the anchor body 7. In the embodiment, the height of the wing plate 8 is 6cm, and the thickness of the wing plate 8 is 0.1cm.

[0059] Further optimization scheme, the pulley assembly comprises:

[0060] The inner side sliding part 10 is rotatably connected to the circular track 1

[0061] The pulley connecting frame 11 is installed at one end of the inner side sliding part 10;

[0062] The outer side pulley 12 is installed on the pulley connecting frame 11 through a connecting rod; a limiting groove 13 is formed in one end of the outer side pulley 12 close to the inner side sliding part 10, and the mooring line 2 is wound on the limiting groove 13 of the outer side pulley 12.

[0063] The outer pulley 12 is connected with the mooring line 2, and can change the direction of the mooring line 2, so that the mooring line 2 is connected with the loading mechanism; the limiting groove 13 is used for preventing the mooring line 2 from being separated.

[0064] In a further optimization scheme, the model frame comprises two short side beams 14 arranged side by side, two long side beams 15 are installed between the two short side beams 14, the two long side beams 15 are located at two ends of the short side beams 14, vertical beams 16 are installed on both sides of the bottom of the short side beams 14, and the moving assembly is installed on the four vertical beams 16.

[0065] In a further optimization scheme, the moving assembly comprises two short side cross beams 17 arranged side by side, the two ends of the short side cross beams 17 are slidably connected to the vertical beams 16 through first shaft sleeves, two long side cross beams 18 are arranged between the short side cross beams 17, the two ends of the long side cross beams 18 are slidably connected to the short side cross beams 17 through second shaft sleeves, the first shaft sleeves are installed on first positioning components, the first positioning components are detachably connected to the vertical beams 16, second positioning components are installed on the second shaft sleeves, and the second positioning components are detachably connected to the short side cross beams 17; two circular cross beams 19 are installed at the bottom of the circular track 1, and the two circular cross beams 19 are slidably connected to the two long side cross beams 18.

[0066] In a further optimization scheme, the wire displacement sensing assembly comprises vertical connecting rods 20 and wire displacement sensors 21, the vertical connecting rods 20 are installed at the bottom of the circular track 1, and the wire displacement sensors 21 are fixedly connected to the anchor eyes 9; the plurality of anchor eyes 9 and the plurality of wire displacement sensors 21 are arranged in one-to-one correspondence.

[0067] In the embodiment, the number of vertical connecting rods 20 is three, and the three vertical connecting rods 20 are arranged at intervals of 120° along the bottom of the circular track 1.

[0068] In a further optimization scheme, the actuator 4 is fixedly connected to the tension and pressure sensor 6 through the actuator connecting piece 5.

[0069] In a further optimization scheme, the inclination sensing assembly comprises an inclination sensor 22 and an inclination sensor connecting piece 23, the universal joint assembly comprises a universal joint connecting piece 24 and a universal joint body 25, the top of the universal joint connecting piece 24 is installed on the inclination sensor connecting piece 23, the inclination sensor 22 is installed at the top of the inclination sensor connecting piece 23, the universal joint body 25 is installed on the side wall of the universal joint connecting piece 24, and the bottom of the mooring line 2 is installed on the universal joint body 25.

[0070] The inclination sensor 22 can measure the inclination of the model anchor along the x direction and along the y direction, the universal joint connecting piece 24 can freely rotate around the center as the axis, the universal joint body 25 is connected with the mooring line 2, and can realize multi-degree-of-freedom rotation, so that the torque load on the foundation is reduced, and the rotation trend of the foundation is reduced.

[0071] Further optimization scheme, the top of the anchor body 7 is provided with a pull wire connecting piece 26, the pull wire connecting piece 26 is connected with the pull wire displacement sensor 21 through the pull wire 27, and the universal joint connecting piece 24 is rotationally connected on the pull wire connecting piece 26; the pull wire displacement sensor 21 is connected with the anchor body 7 through the pull wire 27, and the displacement of the anchor body 7 in the x-y-z space can be measured.

[0072] Further optimization scheme, the triangular support plates 28 are arranged between the short side beams 14 and the vertical beams 16 and between the long side beams 15 and the vertical beams 16, so that the structural strength is improved. Embodiment 2

[0073] The difference between the embodiment and the embodiment 1 is that the embodiment further provides a use method of the anchoring foundation multi-directional loading test device applied to the soil centrifuge, and the use method comprises the following steps:

[0074] Step 1: Under the condition of a standard earth gravity field (1g), the model anchor is installed to a specified position of the test through a ballast method.

[0075] Step 2: The circular track 1 is moved to the geometric center position of the model box, and the height thereof is accurately adjusted, so that the subsequent adjustment to a specified pulling angle is realized.

[0076] Step 3: The three pull wire displacement sensors 21 are connected to the model anchor respectively, so that the displacement changes of the model anchor in the x, y and z three spatial coordinate directions are monitored in real time; the connection stability between the pull wire displacement sensors 21 and the model anchor needs to be ensured in the connection process, so that the errors in the data acquisition process are avoided.

[0077] Step 4: The mooring line 2 is connected to the model anchor, and the stability of the connection is ensured, so that the load applied by the actuator 4 can be accurately transmitted in the experimental process; the connection point between the mooring line 2 and the model anchor needs to be able to bear the expected load in the connection process, so that the fracture or slipping in the experimental process is avoided.

[0078] Step 5: The test is started, the inner side sliding part 10 is moved along the circular track 1 by accurately adjusting the position of the loading device, so that the multi-directional loading of the model anchor is realized.

[0079] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms “longitudinal”, “transverse”, “upper”, “lower”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer” and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0080] Obviously, the above embodiments of the present application are merely exemplary but not intended to limit the embodiments of the present application. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, it is not necessary or possible to exhaust all the embodiments. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A multi-directional loading test device for anchor foundations of centrifuges, characterized in that, include: Model frame; The sliding mechanism includes a moving component, a pulley assembly, a circular track (1), and several wire displacement sensing components; the circular track (1) is installed on the moving end of the moving component, and the moving component is installed on the model frame for adjusting the height and horizontal position of the circular track (1); the pulley assembly is rotatably connected to the circular track (1); Mooring line (2), said mooring line (2) is wound around the pulley assembly; The loading mechanism includes an actuator (4) and a tension / compression sensor (6); the tension / compression sensor (6) is installed at the output end of the actuator (4); the mooring line (2) is connected to the tension / compression sensor (6) through a connecting ring (3); the actuator (4) is used to drive the connecting ring (3) to rise and fall and to drive the connecting ring (3) to move along the tangential direction of the circular track (1); The model anchor includes an inclination sensing component, a universal joint component, and an anchor body component; the universal joint component is installed between the inclination sensing component and the anchor body component, and the universal joint component is installed at the bottom of the mooring line (2); Among them, several of the wire displacement sensing components are installed between the circular track (1) and the anchor body assembly.

2. The multi-directional loading test device for anchor foundations of centrifuges according to claim 1, characterized in that: The anchor assembly includes: Anchor body (7), the universal joint assembly is mounted on top of the anchor body (7); A plurality of wing plates (8) are provided, and the plurality of wing plates (8) are spaced apart and installed on the outer side wall of the anchor body (7); Anchor eye (9), there are a plurality of anchor eyes (9), the plurality of anchor eyes (9) are installed at the bottom of the side wall of the anchor body (7), the plurality of anchor eyes (9) are correspondingly set with a plurality of pull wire displacement sensing components, and the bottom of the pull wire displacement sensing component is fixedly connected to the anchor eye (9).

3. The multi-directional loading test device for anchor foundations of centrifuges according to claim 1, characterized in that: The pulley assembly includes: The inner sliding part (10) is rotatably connected to the annular track (1). A pulley connecting frame (11) is installed at one end of the inner sliding part (10); An outer pulley (12) is mounted on the pulley connecting frame (11) via a connecting rod; a limiting groove (13) is provided at one end of the outer pulley (12) near the inner sliding part (10), and the mooring line (2) is wound around the limiting groove (13) of the outer pulley (12).

4. The multi-directional loading test device for anchor foundations of centrifuges according to claim 1, characterized in that: The model frame includes two short side beams (14) arranged side by side, and two long side beams (15) are installed between the two short side beams (14). The two long side beams (15) are located at both ends of the short side beams (14). Vertical beams (16) are installed on both sides of the bottom of the short side beams (14). The moving component is installed on the four vertical beams (16).

5. The multi-directional loading test device for anchor foundations of centrifuges according to claim 4, characterized in that: The moving component includes two short side beams (17) arranged side by side. The two ends of the short side beams (17) are slidably connected to the vertical beam (16) through a first bushing. Two long side beams (18) are provided between the short side beams (17). The two ends of the long side beams (18) are slidably connected to the short side beams (17) through a second bushing. The first bushing is installed on a first positioning component, which is detachably connected to the vertical beam (16). A second positioning component is installed on the second bushing, which is detachably connected to the short side beams (17). Two circular crossbeams (19) are installed at the bottom of the circular track (1), and both circular crossbeams (19) are slidably connected to the two long side beams (18).

6. The multi-directional loading test device for anchor foundations of centrifuges according to claim 2, characterized in that: The pull-wire displacement sensing assembly includes a vertical connecting rod (20) and a pull-wire displacement sensor (21). The vertical connecting rod (20) is installed at the bottom of the circular track (1), and the pull-wire displacement sensor (21) is fixedly connected to the anchor eye (9). A plurality of anchor eyes (9) are provided in a one-to-one correspondence with a plurality of pull-wire displacement sensors (21).

7. The multi-directional loading test device for anchor foundations of centrifuges according to claim 6, characterized in that: The actuator (4) is fixedly connected to the tension / compression sensor (6) via the actuator connector (5).

8. The multi-directional loading test device for anchor foundations of centrifuges according to claim 7, characterized in that: The tilt sensing assembly includes a tilt sensor (22) and a tilt sensor connector (23). The universal joint assembly includes a universal joint connector (24) and a universal joint body (25). The top of the universal joint connector (24) is mounted on the tilt sensor connector (23). The tilt sensor (22) is mounted on the top of the tilt sensor connector (23). The universal joint body (25) is mounted on the side wall of the universal joint connector (24). The bottom of the mooring line (2) is mounted on the universal joint body (25).

9. The multi-directional loading test device for anchor foundations of centrifuges according to claim 8, characterized in that: The top of the anchor body (7) is equipped with a wire connector (26), which is connected to the wire displacement sensor (21) via a wire (27). The universal joint connector (24) is rotatably connected to the wire connector (26).

10. The multi-directional loading test device for anchorage foundations of centrifuges according to claim 4, characterized in that: Triangular support plates (28) are installed between the short side beam (14) and the vertical beam (16), and between the long side beam (15) and the vertical beam (16).

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