Anchored foundation and method of installation thereof

Abstract

The application discloses an anchoring foundation and a mounting method thereof. The mounting method of the anchoring foundation comprises the following steps: providing a box body and a plurality of inclined piles, mounting the inclined piles to the box body, and making the part of the inclined piles with spiral blades extend out of the box body. The box body is lowered to the seabed. The inclined piles are rotated to penetrate into the seabed through the spiral blades. The inclined piles are fixedly connected with the box body. The box body of the anchoring foundation is seated on the seabed surface and provides ballast and preliminary anchoring force by using its own weight. The inclined piles penetrate through the box body and extend out of the bottom of the box body, and one end of the inclined piles is provided with spiral blades. The spiral blades are rotated into the seabed by rotating the inclined piles, the convenient penetration of the inclined piles can be realized, a guide sleeve does not need to be arranged or complicated construction modes such as driving and vibration sinking are adopted, and the mounting process of the anchoring foundation is simplified.

Description

Technical Field

[0001] This invention relates to the field of marine engineering foundations and mooring anchoring technology, and particularly to an anchoring foundation and its installation method. Background Technology

[0002] Lightweight marine structures such as marine environmental monitoring buoys are typically deployed long-term in nearshore areas, bays, harbors, and other sea areas, connected to seabed anchorages via anchor chains or mooring cables. Under the combined influence of environmental loads such as wind, waves, and currents, the buoys exhibit motion responses and transmit continuously changing cyclic loads to the anchorages through the mooring system. For small buoys, due to the catenary characteristics of the mooring line (anchor chain), the load borne by the anchorages usually has a small heave angle, with the horizontal load component dominating. When the anchorages experience significant horizontal displacement under long-term cyclic horizontal loads, the buoy's position can easily shift, resulting in anchor dragging, which affects the stability of monitoring operations and may even cause the mooring system to fail.

[0003] To meet the high requirements for horizontal anchoring, some anchoring foundations adopt a composite structure of gravity anchoring structure and steel pipe piles. However, traditional steel pipe piles usually need to be driven into the seabed by methods such as driving, vibratory sinking or static pressure, and require the installation of corresponding guide sleeves, pile foundation construction equipment and subsequent connection structures. The construction and offshore installation process of this type of anchoring foundation is relatively complex. Summary of the Invention

[0004] The present invention aims to at least solve one of the aforementioned technical problems existing in the prior art. Therefore, the object of the present invention is to provide an anchoring foundation and its installation method, which can provide an anchoring foundation with a simple overall structure and installation process.

[0005] The first aspect of this invention provides a method for installing an anchor foundation, comprising: A housing and a plurality of inclined piles are provided, and each of the inclined piles is installed into the housing such that the portion of the inclined pile with helical blades extends out of the housing; The container was lowered to the seabed; Rotate the inclined pile so that it penetrates the seabed through the helical blade; The inclined pile is fixedly connected to the box body.

[0006] The installation method of the anchor foundation according to embodiments of the present invention has at least the following beneficial effects: The installation method of this invention is used to install anchor foundations. The box-shaped structure provides ballast weight to the anchor foundation, and the box-shaped structure is lowered to contact the seabed surface to provide initial anchoring force. The inclined piles extending through the box-shaped structure have helical blades. During the driving of the anchor foundation, the helical blades of the inclined piles are rotated to cut into the seabed surface. Compared with traditional methods of driving, vibratory driving, or static pressure, this method allows for convenient driving of inclined piles. After driving, the inclined piles are anchored to the box-shaped structure, forming an integral load-bearing structure. The helical blades of the inclined piles are inserted into the soil layer of the seabed, providing resistance when the inclined piles are subjected to axial tensile or compressive loads, ensuring that the anchor foundation has a certain axial tensile strength and bearing capacity, and can meet high horizontal anchoring requirements.

[0007] According to some embodiments of the present invention, fixing the inclined pile to the box body includes: The box body has multiple chambers inside, and the inclined piles penetrate the corresponding chambers to inject consolidation material into each chamber; During the injection process, the attitude of the box is monitored, and the filling amount of the consolidation material injected into each of the chambers is adjusted according to the monitoring results in order to adjust the attitude of the box on the seabed. After the consolidation material has cured, the inclined pile and the box body are anchored together by the consolidation material.

[0008] According to some embodiments of the present invention, multiple inclined piles are distributed circumferentially along the box-shaped structure, and two inclined piles arranged opposite each other form a set of diagonal piles; rotating the inclined piles so that they penetrate the seabed through the helical blades specifically includes: Alternately rotate two of the diagonal piles in each group, so that each diagonal pile penetrates the seabed through the helical blades.

[0009] A second aspect of the present invention provides an anchoring foundation, comprising: Box; Multiple inclined piles penetrate the box body, each inclined pile is provided with a helical blade, and the portion of each inclined pile with the helical blade extends out of the box body, and the inclined pile is anchored to the box body.

[0010] The anchoring foundation according to embodiments of the present invention has at least the following beneficial effects: The anchor foundation's box-shaped structure rests on the seabed surface, utilizing its own weight to provide ballast and initial anchoring force. An inclined pile penetrates the box-shaped structure and extends from its bottom, with a helical blade at one end. By rotating the inclined pile, the helical blade is driven into the seabed, enabling convenient pile insertion without the need for guide sleeves or complex construction methods such as driving or vibratory sinking, thus simplifying the anchor foundation's installation process.

[0011] The anchoring foundation has a simple overall structure. After the inclined piles are driven in, they are anchored to the box hull, forming an integral load-bearing structure with the box hull and the inclined piles. The helical blades of the inclined piles are inserted into the soil layer of the seabed, providing resistance when the inclined piles are subjected to axial tensile or compressive loads, thereby improving the axial tensile strength and bearing capacity of the anchoring foundation. This meets the buoy's requirement for high-level anchoring force and reduces the risk of anchor dragging.

[0012] According to some embodiments of the present invention, the box body has multiple chambers inside, the inclined piles penetrate through the corresponding chambers, each chamber is provided with a grouting channel and a drainage channel, the grouting channel and the drainage channel are connected to the outside of the box body, and the chambers are filled with consolidation material.

[0013] According to some embodiments of the present invention, the anchoring foundation further includes an attitude monitoring component connected to the housing.

[0014] According to some embodiments of the present invention, the box body includes a first plate, a second plate, and a plurality of first skirts, the first plate and the second plate being arranged opposite to each other, the inclined pile passing through the first plate and the second plate, one end of which has the helical blade extending out of the second plate, and the plurality of first skirts surrounding the first plate and the second plate.

[0015] According to some embodiments of the present invention, the housing further includes a plurality of partitions, the partitions being partially disposed inside the housing, and the plurality of partitions being arranged intersectingly to divide the housing into a plurality of chambers.

[0016] According to some embodiments of the present invention, the first skirt extends beyond the second plate along an edge in a direction away from the first plate, and the edge is provided with a first cutting edge.

[0017] According to some embodiments of the present invention, the inclined pile includes a pile body and a connector, one end surface of the pile body is provided with the helical blade, and the other end is detachably connected to the connector, the connector being detachably connected to a rotary drive device. Attached Figure Description

[0018] Figure 1 This is one of the structural schematic diagrams of the anchoring foundation in an embodiment of the present invention; Figure 2 This is a second schematic diagram of the anchoring foundation in an embodiment of the present invention; Figure 3 for Figure 2 Cross-sectional view along the middle AA; Figure 4 This is a cross-sectional schematic diagram of the anchoring foundation being lowered onto the seabed in an embodiment of the present invention; Figure 5This is a cross-sectional view of the anchoring foundation after installation is completed in an embodiment of the present invention; Figure 6 for Figure 3 A magnified view of detail B.

[0019] Figure 7 This is a flowchart illustrating the installation method of the anchor foundation in an embodiment of the present invention.

[0020] Figure label: 100. Box body; 110. Chamber; 120. Consolidation material; 130. First plate; 140. Second plate; 150. First skirt; 151. First cutting edge; 160. Second skirt; 161. Second cutting edge; 170. Grouting hole; 180. Drainage hole; 190. Partition; 200. Inclined pile; 210. Pile body; 211. Helical blade; 220. Connector; 300. Anchor eye assembly; 400. Seabed. Detailed Implementation

[0021] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0022] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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 limiting this invention.

[0023] In the description of this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0024] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0025] In the description of this invention, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0026] like Figures 1 to 6 As shown, this embodiment of the invention provides an anchoring foundation, including a box body 100, a plurality of inclined piles 200, and an anchor eye assembly 300. The plurality of inclined piles 200 penetrate through the box body 100, and each inclined pile 200 is provided with a helical blade 211. The portion of each inclined pile 200 with the helical blade 211 extends out of the box body 100, and the inclined piles 200 are anchored to the box body 100.

[0027] The box 100 of the anchor foundation rests on the surface of the seabed 400, using its own weight to provide ballast and initial anchoring force. The inclined pile 200 penetrates the box 100 and extends from the bottom of the box 100. One end of the inclined pile is equipped with a helical blade 211. By rotating the inclined pile 200, the helical blade 211 is screwed into the seabed 400, which can realize the convenient insertion of the inclined pile 200 without the need to set up a guide sleeve or use complex construction methods such as driving or vibratory sinking, thus simplifying the installation process of the anchor foundation.

[0028] Furthermore, for buoy anchoring conditions where the main load is a small lift angle mooring load and the horizontal load accounts for a large proportion, traditional vertical piles mainly rely on the bending stiffness of the pile body and the lateral resistance of the surrounding soil to resist the horizontal load. The axial bearing capacity of the vertical pile is difficult to be directly converted into horizontal resistance.

[0029] In contrast, this embodiment of the invention uses inclined piles 200. When the inclined piles 200 bear horizontal loads, the load is decomposed into axial and lateral components along the pile shaft axis. The axial component causes tensile and compressive deformation of the pile shaft, which is transmitted to the 400-meter deep soil of the seabed through the pile side friction and pile end resistance. The lateral component is borne by the lateral resistance of the soil around the pile, thereby further improving the horizontal bearing capacity of the anchored foundation.

[0030] The anchoring foundation has a simple overall structure. After the inclined pile 200 is driven in, it is anchored to the box 100, so that the box 100 and the inclined pile 200 form an integral load-bearing structure. The spiral blade 211 of the inclined pile 200 is inserted into the soil layer of the seabed 400, providing resistance when the inclined pile 200 is subjected to axial tensile or downward pressure loads, further improving the axial tensile strength and bearing capacity of the anchoring foundation, thereby meeting the buoy's requirement for high-level anchoring force and reducing the risk of anchor dragging.

[0031] According to some embodiments of the present invention, the anchor eye assembly 300 is disposed on one side of the housing 100 away from the helical blade 211 of the inclined pile 200, for connecting the anchor chain.

[0032] According to some embodiments of the present invention, the box body 100 has multiple chambers 110 inside, the inclined piles 200 penetrate through the corresponding chambers 110, the box body 100 is provided with multiple grouting channels and multiple drainage channels, each grouting channel is connected to the corresponding chamber 110, each drainage channel is connected to the corresponding chamber 110, and the chambers 110 are filled with consolidation material 120.

[0033] The grouting channel is used to inject the consolidation material 120 into each chamber 110, and the drainage channel is used to discharge the original seawater, air or other fluids in the chamber 110 when the consolidation material 120 is injected into the chamber 110, so as to ensure that the consolidation material 120 can enter and fill the corresponding chamber 110.

[0034] The consolidation material 120 can be concrete, sand, gravel, heavy aggregate, cement mortar, or other materials suitable for marine environments. Preferably, a material with certain fluidity and consolidation strength is used, which can wrap the portion of the inclined pile 200 inside the cavity 110 and anchor the inclined pile 200 and the box body 100 together after consolidation, thereby enhancing the overall connection between the inclined pile 200 and the box body 100.

[0035] In addition to its anchoring function, the consolidation material 120 also increases the weight of the box body 100 and adjusts the horizontal posture of the anchoring foundation during installation.

[0036] Specifically, increasing the weight of the box 100 can improve the bearing capacity of the anchoring foundation. Furthermore, since the consolidation material 120 is filled after the box 100 is lowered to the seabed 400 in this embodiment, the anchoring foundation is lighter when installed on shore, which reduces the difficulty of onshore manufacturing and hoisting.

[0037] Secondly, since the inclined piles 200 can convert axial bearing capacity into horizontal resistance, the stress on the anchoring foundation is related to the inclination angle of the inclined piles 200. That is, the box 100 needs to maintain a horizontal posture so that the actual penetration angle of each inclined pile 200 conforms to the design angle. In this embodiment, four cavities are distributed circumferentially inside the box 100. During the installation of the anchoring foundation, the filling amount of the consolidation material 120 into the four cavities is adjusted. Since the surface of the seabed 400 is soft sand, the change in the filling amount of the consolidation material 120 in different cavities can adjust the weight distribution of the anchoring foundation and change the anchoring posture of the box 100 on the seabed 400. This keeps the anchoring foundation in a horizontal posture, thereby ensuring that the actual penetration angle of the inclined piles 200 conforms to the design angle and guarantees the horizontal bearing capacity of the anchoring foundation.

[0038] According to some embodiments of the present invention, the anchoring foundation further includes an attitude monitoring component connected to the housing 100.

[0039] During the installation of the anchoring foundation, the attitude of the container 100 is monitored using an attitude monitoring component. Construction personnel can determine the bottoming attitude of the container 100 on the seabed 400 based on the monitoring data, and thus adjust the filling amount of the consolidation material 120 injected into different chambers 110, gradually restoring the container 100 to a horizontal position. The attitude monitoring component is configured as a horizontal sensor and can be wirelessly connected to a remote control system.

[0040] According to some embodiments of the present invention, the box body 100 includes a first plate 130, a second plate 140 and a plurality of first skirts 150. The first plate 130 and the second plate 140 are arranged opposite to each other. An inclined pile 200 passes through the first plate 130 and the second plate 140, and one end of the inclined pile 200 having a helical blade 211 extends out of the second plate 140. The plurality of first skirts 150 surround the sides of the first plate 130 and the second plate 140.

[0041] Specifically, such as Figure 1 and Figure 3 As shown, the first plate 130, the second plate 140, and the four first skirts 150 form a hexahedral box 100. The first plate 130 forms the top surface of the box 100, and the anchor eye assembly 300 is disposed on the first plate 130. The second plate 140 forms the bottom surface of the box 100. When the anchor foundation sits on the seabed 400 surface, the second plate 140 is close to the seabed 400 surface. Each first skirt 150 sequentially connects and surrounds the first plate 130 and the second plate 140 to form the side wall of the box 100, so that the inside of the box 100 forms a closed space, which is convenient for subsequent filling of the consolidation material 120.

[0042] According to some embodiments of the present invention, the first plate 130 is provided with a first guide hole structure corresponding to the position of each chamber 110, and the second plate 140 is provided with a second guide hole structure corresponding to the position of each chamber 110. The inclined pile 200 is sequentially inserted into the corresponding first guide hole structure and second guide hole structure, and the three are coaxially arranged. The first guide hole structure and the second guide hole structure are used to position and guide the inclined pile 200 during installation.

[0043] According to some embodiments of the present invention, the first plate 130 is provided with grouting holes 170 corresponding to the positions of each cavity to form grouting channels. The first plate 130 is provided with drainage holes 180 corresponding to the positions of each cavity to form drainage channels.

[0044] According to some embodiments of the present invention, the housing 100 further includes at least two partitions 190 disposed inside the housing 100, and the at least two partitions 190 are arranged crosswise to divide the housing 100 into a plurality of chambers 110.

[0045] Specifically, multiple partitions 190 are welded together to form a cross-shaped partition structure, dividing the box 100 into four chambers 110. As an internal partition structure, the partitions 190, together with the consolidation material 120, form the internal support skeleton of the box 100 after grouting, enhancing the overall structural rigidity and compressive strength of the box 100.

[0046] According to some embodiments of the present invention, such as Figure 3 and Figure 6 As shown, the first skirt 150 extends beyond the second plate 140 along its edge away from the first plate 130, and its edge is provided with a first cutting edge 151. The second plate 140 is provided with a second skirt 160 on the side opposite to the first plate 130, and the edge of the second skirt 160 away from the second plate 140 is provided with a second cutting edge 161.

[0047] At least two second skirts 160 are provided, and the at least two second skirts 160 are arranged crosswise to form a cross skirt. The second skirts 160 are also connected to the first skirt 150. Specifically, the second skirts 160, the second plate 140, and the first skirt 150 are welded together. After the box body 100 is lowered to the seabed 400, the first cutting edge 151 of the first skirt 150 and the second cutting edge 161 of the second skirt 160 of the box body 100 contact the surface of the seabed 400 to reduce the penetration resistance of the box body 100. According to some embodiments of the present invention, the inclined pile 200 includes a pile body 210 and a connector 220. One end surface of the pile body 210 is provided with a helical blade 211, and the other end is detachably connected to the connector 220. The connector 220 is used for detachable connection to a rotary drive device.

[0048] Specifically, the pile 210 passes through the second guide hole structure and the first guide hole structure in sequence and then connects to the connector 220. The connector 220 matches the first guide hole structure, and the first guide hole limits the connector 220 to prevent the pile 210 from falling out during hoisting. The connector 220 can also be connected to a rotary drive device. The rotary drive device drives the connector 220 to rotate, thereby driving the pile 210 and its helical blades 211 to rotate and penetrate into the seabed 400.

[0049] like Figures 1 to 7 As shown, the embodiment of the present invention relates to an installation method for the above-mentioned anchoring foundation, including: S100: Provides a housing 100 and a plurality of inclined piles 200, and installs each inclined pile 200 to the housing 100 such that the portion of the inclined pile 200 having helical blades 211 extends out of the housing 100.

[0050] Specifically, in step S100, on the shore, the ends of each pile 210 furthest from the helical blade 211 are sequentially passed through the second guide hole structure and the first guide hole structure, and connected to the connector 220. The inner diameters of both the first and second guide hole structures are smaller than the outer diameters of the connector 220 and the helical blade 211, and the radius of the inclined pile 200 is smaller than the inner diameters of the first and second guide hole structures. The inclined pile 200 can move along the axial direction of the first and second guide hole structures and will not fall out during the hoisting of the anchor foundation.

[0051] S200: Lower the container 100 to the seabed 400.

[0052] Specifically, in step S200, as Figure 4 As shown, after the box body 100 is lowered to the seabed 400, the first cutting edge 151 of the first skirt 150 and the second cutting edge 161 of the second skirt 160 of the box body 100 contact the surface of the seabed 400, reducing the penetration resistance of the box body 100. Since the inclined pile 200 can move along the axial direction of the first guide hole structure and the second guide hole structure, one end of the inclined pile 200 with the helical blade 211 abuts against the surface of the seabed 400, and one end of the inclined pile 200 with the connector 220 extends in the direction away from the seabed 400. The connector 220 is ready to be connected to the rotary drive device.

[0053] S300: Rotate the inclined pile 200 so that it penetrates the seabed 400 through the helical blade 211.

[0054] Among them, multiple inclined piles 200 are distributed circumferentially along the box body 100, and two inclined piles 200 arranged opposite each other form a set of diagonal piles; step S300 includes the following steps: Alternately rotate the two inclined piles 200 in each set of diagonal piles so that each inclined pile 200 penetrates into the seabed 400 through the spiral blade 211.

[0055] As the inclined piles 200 penetrate the seabed 400, the box 100 will be disturbed during construction. By using a staged or sequential pressing method for multiple inclined piles 200, the horizontal displacement and rotation of the box 100 can be reduced, thus avoiding significant changes in the attitude of the box 100.

[0056] It should be noted that as the depth of the inclined pile 200 penetrating the seabed 400 gradually increases, the torque required for the rotary drive device to penetrate the inclined pile 200 also gradually increases, making the penetration of the inclined pile 200 more difficult. Therefore, the inclined pile 200 does not need to be fully penetrated into the seabed 400, and the connector 220 at one end of the inclined pile 200 may not be engaged in the first guide hole structure. The attitude of the box 100 is monitored to ensure that the levelness of the box 100 is within a certain range. Further adjustment of the attitude of the box 100 is achieved by injecting consolidation material 120 into each chamber 110.

[0057] S400: Fix the inclined pile 200 to the box body 100.

[0058] like Figure 5 As shown, the box body 100 has multiple chambers 110 inside, and the inclined pile 200 penetrates the corresponding chamber 110. Step S400 includes the following steps: S410: Inject solidification material 120 into each chamber 110.

[0059] Specifically, the grouting pipe is inserted into the grouting hole 170, and the consolidation material 120 is injected into the chamber 110. As the consolidation material 120 is injected, the first skirt 150 and the second skirt 160 of the box body 100 further penetrate into the seabed 400.

[0060] S420: During the injection process, the attitude of the box 100 is monitored, and the filling amount of the consolidation material 120 injected into each chamber 110 is adjusted according to the monitoring results in order to adjust the attitude of the box 100 on the seabed 400.

[0061] Specifically, the monitoring results include, but are not limited to, the tilt angle data of the housing 100, which is acquired in real time through the attitude monitoring component. In addition to adjusting the filling amount of the consolidation material 120 based on the monitoring results, the filling speed of the consolidation material 120 can also be further adjusted to ensure the controllability of the attitude adjustment of the housing 100.

[0062] The amount of consolidation material 120 is increased in the corresponding chamber 110, causing the weight of the box 100 on the side corresponding to the chamber to increase and sink. Through the combination of zonal filling and attitude monitoring, the box 100 is kept in a horizontal position on the seabed 400, ensuring that the penetration direction of each inclined pile 200 is consistent, the box 100 is in uniform contact with the seabed 400, and the overall stability of the anchoring foundation is improved.

[0063] S430: After the consolidation material 120 has cured, the inclined pile 200 and the box body 100 are anchored together by the consolidation material 120.

[0064] While adjusting the posture of the box 100, the consolidation material 120 also anchors the inclined pile 200 and the box 100 together to form an integral load-bearing structure. At this time, the spiral blades 211 of the inclined pile 200 of the installed anchoring structure are inserted into the soil layer of the seabed 400, providing resistance when the inclined pile 200 is subjected to axial tensile or compressive loads, ensuring that the anchoring foundation has a certain axial tensile strength and bearing capacity, and can meet the high horizontal anchoring requirements.

[0065] The above-described installation method of the present invention is used to install an anchor foundation. The box 100 can provide ballast weight for the anchor foundation. The box 100 is lowered to contact the surface of the seabed 400 to provide initial anchoring force for the anchor foundation. The inclined pile 200 extending through the box 100 has a helical blade 211. During the driving process of the anchor foundation, the helical blade 211 of the inclined pile 200 is rotated to cut into the surface of the seabed 400. Compared with the traditional methods of driving, vibrating, or static pressure to drive the pile 210 into the seabed 400, the inclined pile 200 can be driven in a more convenient way.

[0066] The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present invention shall be considered equivalent substitutions and shall be included within the protection scope of the present invention.

Claims

1. A method for installing an anchored foundation, characterized in that, include: A housing and a plurality of inclined piles are provided, and each of the inclined piles is installed into the housing such that the portion of the inclined pile with helical blades extends out of the housing; The container was lowered to the seabed; Rotate the inclined pile so that it penetrates the seabed through the helical blade; The inclined pile is fixedly connected to the box body.

2. The installation method of the anchor foundation according to claim 1, characterized in that, The process of fixing the inclined pile to the box body includes: The box body has multiple chambers inside, and the inclined piles penetrate the corresponding chambers to inject consolidation material into each chamber; During the injection process, the attitude of the box is monitored, and the filling amount of the consolidation material injected into each of the chambers is adjusted according to the monitoring results in order to adjust the attitude of the box on the seabed. After the consolidation material has cured, the inclined pile and the box body are anchored together by the consolidation material.

3. The installation method of the anchoring foundation according to claim 1, characterized in that, Multiple inclined piles are distributed circumferentially along the box-shaped structure, with two inclined piles arranged opposite each other forming a diagonal pile group; rotating the inclined piles so that they penetrate the seabed through the helical blades specifically includes: Alternately rotate two of the diagonal piles in each group, so that each diagonal pile penetrates the seabed through the helical blades.

4. The anchoring foundation according to any one of claims 1 to 3, characterized in that, include: Box; Multiple inclined piles penetrate the box body, each inclined pile is provided with a helical blade, and the portion of each inclined pile with the helical blade extends out of the box body, and the inclined pile is anchored to the box body.

5. The anchoring foundation according to claim 4, characterized in that, The box body has multiple chambers inside, and the inclined piles penetrate the corresponding chambers. The box body has multiple grouting channels and multiple drainage channels. Each grouting channel is connected to the corresponding chamber, and each drainage channel is connected to the corresponding chamber. The chambers are filled with consolidation material.

6. The anchoring foundation according to claim 5, characterized in that, The anchoring foundation also includes an attitude monitoring component, which is connected to the housing.

7. The anchoring foundation according to claim 5, characterized in that, The box body includes a first plate, a second plate, and a plurality of first skirts. The first plate and the second plate are arranged opposite to each other. The inclined pile passes through the first plate and the second plate, and one end of the inclined pile with the helical blade extends out of the second plate. The plurality of first skirts surround the sides of the first plate and the second plate.

8. The anchoring foundation according to claim 7, characterized in that, The enclosure also includes at least two partitions disposed inside the enclosure, with the partitions arranged crosswise to divide the enclosure into multiple chambers.

9. The anchoring foundation according to claim 8, characterized in that, The first skirt extends beyond the second plate along an edge away from the first plate, and the edge is provided with a first cutting edge.

10. The anchoring foundation according to claim 7, characterized in that, The inclined pile includes a pile body and a connector. One end of the pile body is provided with the helical blade, and the other end is detachably connected to the connector. The connector is used to detachably connect to a rotary drive device.

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