Anchoring device and method for installing an anchoring device

Abstract

This application discloses an anchoring device and its construction method. The anchoring device includes an anchoring foundation and a driven pile. The anchoring foundation is an embedded anchor, including an embedding component and an anchor head. The embedding component includes at least three radially arranged embedding plates, on which the anchor head is installed. The anchoring device disclosed in this solution simplifies the structure of the anchoring foundation and reduces costs compared to suction anchors and pile anchors. Furthermore, the driven pile and the anchoring foundation are detachably connected, allowing the driven pile to separate from the anchoring foundation after penetrating a predetermined depth below the mud surface. The driven pile can be pulled out of the soil, leaving only the anchoring foundation in the soil, further reducing the cost of the anchoring device.

Description

Technical Field

[0001] This application relates to the field of marine engineering technology, and in particular to an anchoring device and a construction method for the anchoring device. Background Technology

[0002] Anchoring foundations are marine engineering equipment used to moor floating marine structures in the working sea area. Anchoring foundations include suction anchors, towed anchors, pile anchors, and vertical load anchors. Towed anchors and vertical load anchors are relatively inexpensive, but they suffer from inaccurate installation positions. Pile anchors and suction anchors offer precise installation positions, but are relatively more expensive.

[0003] With the large-scale application of floating wind turbines, the shared anchoring foundation scheme has been proposed to save on mooring equipment costs. However, shared anchoring foundations can only use more expensive pile anchors and suction anchors, so there is room for cost reduction in shared anchoring foundations.

[0004] Therefore, how to reduce the cost of shared anchoring foundations has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] This application proposes an anchoring device to reduce the cost of shared anchoring foundations. This application also proposes a method for constructing the anchoring device.

[0006] To achieve the above objectives, this application provides an anchoring device, including an anchoring foundation and a penetration pile.

[0007] The penetration pile is used to lower the anchoring foundation to the target position and penetrate the anchoring foundation to a predetermined depth below the mud surface.

[0008] The anchoring foundation includes:

[0009] Anchor head, used to connect mooring cables;

[0010] An embedded assembly for anchoring in soil includes at least three radially arranged embedded plates, with the inner edges of adjacent embedded plates connected. The anchor head is mounted on the embedded plate, and the outer edges of the embedded plates are provided with embedded grooves.

[0011] The penetration pile has at least a cavity at its lower end for covering the embedded component. An embedded strip is provided around the cavity, and the penetration pile is connected to the embedded groove through the embedded strip.

[0012] Preferably, in the above-mentioned anchoring device, the anchoring foundation further includes a sleeve, which is fitted onto the embedding component and connected to the outer side of the embedding plate to increase the friction between the anchoring foundation and the soil. The embedding groove and the anchor head are located outside the sleeve.

[0013] Preferably, in the above-described anchoring device, the diameter of the sleeve is equal to the diameter of the driven pile; and / or,

[0014] The distance between the embedding groove and the upper end face of the sleeve is equal to the distance between the embedding strip and the lower end face of the penetrating pile.

[0015] Preferably, in the above-mentioned anchoring device, the anchoring foundation further includes a pull-out resistance component, which is disposed on the outer wall of the sleeve and is used to increase the pull-out resistance of the anchoring foundation.

[0016] Preferably, in the above-described anchoring device, the pull-out resistance component includes a web and wing plates.

[0017] The web is perpendicular to the outer wall of the sleeve, and the angle between the web and the axis of the sleeve is 0°-30°.

[0018] The wing plate is a V-shaped plate, the closed end of the wing plate is connected to the web plate, and the open end of the wing plate faces upward;

[0019] The width of the web is greater than the width of the wing plate, and there is a gap between the wing plate and the outer wall of the sleeve.

[0020] Preferably, in the above-mentioned anchoring device, the anchor head includes:

[0021] Lifting lugs are used to connect mooring cables;

[0022] Lifting lug plate, used for mounting the lifting lug;

[0023] An anchor plate is located between and connected to two adjacent embedded plates;

[0024] The anchor neck plates are arranged opposite each other, with the first end of the anchor neck plate connected to the anchor plate and the second end of the anchor neck plate connected to the lifting lug plate.

[0025] Preferably, in the above-described anchoring device, the size of the lifting lug plate is smaller than the size of the anchor plate; and / or,

[0026] The shape of the lug plate is the same as that of the anchor plate.

[0027] Preferably, in the above-described anchoring device, the length of the embedding strip is greater than half the distance between two adjacent embedding slots and less than the distance between two adjacent embedding slots.

[0028] A construction method for an anchoring device, applicable to the anchoring device described in any of the above schemes, comprising:

[0029] S1. Insert the embedding component of the anchoring foundation into the cavity at the lower end of the driven pile, rotate the driven pile, and let the embedding strip of the driven pile slide into the embedding groove of the embedding plate of the embedding component to connect the driven pile and the anchoring foundation to obtain the anchoring device.

[0030] S2. Hoist the anchoring equipment to the target position;

[0031] S3. Drive the pile into the anchoring device to a preset depth below the mud surface using a pile driving device;

[0032] S4. Rotate the penetrating pile to allow the embedded strip to slide out of the embedded groove, disconnect the penetrating pile from the anchoring foundation, pull out the penetrating pile, and leave the anchoring foundation in the soil.

[0033] Preferably, in the construction method of the above-mentioned anchoring equipment, the pile driving device in S3 is a suction device or a pile hammer.

[0034] The anchoring device provided in this application includes an anchoring foundation and a driven pile. The anchoring foundation is an embedded anchor, including an embedding component and an anchor head. The embedding component includes at least three radially arranged embedding plates, on which the anchor head is installed. The anchoring device disclosed in this solution simplifies the structure of the anchoring foundation and reduces costs compared to suction anchors and pile anchors. Furthermore, the driven pile and the anchoring foundation are detachably connected, allowing the driven pile to separate from the anchoring foundation after penetrating a predetermined depth below the mud surface. The driven pile can be pulled out of the soil, leaving only the anchoring foundation in the soil, further reducing the cost of the anchoring device.

[0035] This application also discloses a construction method for anchoring equipment, applicable to the anchoring equipment described in the above scheme. Since the anchoring equipment has the above-mentioned technical effects, the anchoring equipment installed by this construction method also has the same technical effects, which will not be repeated here. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some examples or embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort, and this application can be applied to other similar scenarios based on the provided drawings. Unless obvious from the linguistic context or otherwise specified, the same reference numerals in the drawings represent the same structures or operations.

[0037] Figure 1 This is a structural schematic diagram of the anchoring device of this application;

[0038] Figure 2This is a top view of the anchoring device of this application;

[0039] Figure 3 This is a structural schematic diagram of the anchoring foundation of the anchoring device of this application;

[0040] Figure 4 This is a front view of the anchoring foundation of the anchoring device of this application;

[0041] Figure 5 This is a top view of the anchoring foundation of the anchoring device of this application;

[0042] Figure 6 This is a schematic diagram of the structure of the penetration pile of the anchoring device of this application;

[0043] Figure 7 This is a top view of the driven pile of the anchoring device of this application;

[0044] Figure 8 This is a schematic diagram of the anchoring device of this application being lowered into the soil;

[0045] Figure 9 This is a schematic diagram of the anchoring foundation of the anchoring device of this application being left in the soil.

[0046] Figure 10 This is a flowchart of the construction method for the anchoring equipment of this application.

[0047] in:

[0048] 1-Anchoring foundation; 11-Anchor head; 111-Lifting lug; 112-Lifting lug plate; 113-Anchor plate; 114-Anchor neck plate; 12-Embedded component; 121-Embedded plate; 1211-Embedded groove; 13-Sleeve; 14-Pull-out component; 141-Web plate; 142-Wing plate; 2-Penetrating pile; 21-Embedded strip. Detailed Implementation

[0049] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the application and not intended to limit it. The described embodiments are only a part of the embodiments of the present application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without inventive effort are within the scope of protection of the present application.

[0050] It should be noted that, for ease of description, only the parts relevant to the application are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0051] Please see Figures 1-10 .

[0052] Some embodiments of this application disclose an anchoring device, including an anchoring foundation 1 and a penetration pile 2, wherein the penetration pile 2 is used to lower the anchoring foundation 1 to a target position and penetrate the anchoring foundation 1 to a predetermined depth below the mud surface, and the anchoring foundation 1 is used to anchor in the soil.

[0053] The anchoring foundation 1 includes an anchor head 11 and an embedding assembly 12. The anchor head 11 is used to connect the anchoring end of the mooring cable. The embedding assembly 12 includes at least three embedding plates 121 arranged radially. The inner sides of two adjacent embedding plates 121 are connected, and the anchor head 11 is installed on the embedding plate 121.

[0054] An embedding groove 1211 is provided on the outer side of the embedding plate 121, and the driven pile 2 has a cavity at least at its lower end. An embedding strip 21 is provided circumferentially on the inner wall of the cavity. Specifically, the driven pile 2 is covered on the embedding assembly 12 through the cavity. The driven pile 2 is rotated along the axial direction of the driven pile 2 so that the embedding strip 21 of the driven pile 2 slides into the embedding groove 1211 of the embedding plate 121, completing the connection between the driven pile 2 and the embedding assembly 12. After the embedding assembly 12 is lowered to a preset depth below the mud surface, the driven pile 2 is rotated or rotated in the opposite direction so that the embedding strip 21 of the driven pile 2 slides out of the embedding groove 1211 of the embedding plate 121, completing the separation between the driven pile 2 and the embedding assembly 12. The anchoring foundation 1 and the driven pile 2 of the anchoring device disclosed in this application are detachably connected through the cooperation of the embedding strip 21 and the embedding groove 1211. During the lowering and penetration of the anchor foundation 1, the embedded component 12 and the penetrating pile 2 are integrated by the connector. After the anchor foundation 1 penetrates to a preset depth below the mud surface, the embedded component 12 separates from the penetrating pile 2, the penetrating pile 2 is pulled out, and only the anchor foundation 1 is left in the soil.

[0055] The anchoring device disclosed in this application includes an anchoring foundation 1 and a driven pile 2. The anchoring foundation 1 is an embedded anchor, including an embedding component 12 and an anchor head 11. The embedding component 12 includes at least three radially arranged embedding plates 121, on which the anchor head 11 is installed. The anchoring device disclosed in this solution simplifies the structure of the anchoring foundation 1 and reduces costs compared to suction anchors and pile anchors. At the same time, the driven pile 2 is detachably connected to the anchoring foundation 1, allowing the driven pile 2 to separate from the anchoring foundation 1 after the anchoring foundation 1 penetrates to a predetermined depth below the mud surface. The driven pile 2 can be pulled out of the soil, leaving only the anchoring foundation 1 in the soil, further reducing the cost of the anchoring device.

[0056] The embedded component 12 includes at least three embedded plates 121 arranged radially, with the inner edges of adjacent embedded plates 121 connected. In some embodiments of this application, the embedded plates 121 are rectangular plates to ensure the contact area between the embedded plates 121 and the soil. Preferably, the multiple embedded plates 121 are of equal size, and the included angle between adjacent embedded plates 121 is equal, so that the bearing capacity of the anchor foundation 1 is consistent throughout.

[0057] like Figure 2 , Figure 3 and Figure 5 As shown, the disclosed embodiment of the embedded component 12 includes four embedded plates 121, the included angle between adjacent embedded plates 121 is 90°, and the embedded plate 121 is a rectangular plate.

[0058] The specific number of embedded boards 121 can be selected by those skilled in the art according to actual needs, and no specific limit is made here.

[0059] The penetration pile 2 is encased in the embedded component 12 through a cavity. The embedded component 12 can limit the penetration pile 2 in both the circumferential and axial directions, thereby reducing the difficulty of connecting the penetration pile 2 and the embedded component 12.

[0060] The number of anchor heads 11 is at least one. Anchor foundation 1 may include only one anchor head 11, in which case anchor foundation 1 is connected to only one mooring cable; anchor foundation 1 may also include at least two anchor heads 11, in which case multiple mooring cables can be connected to anchor foundation 1 to form a common anchor foundation 1, so as to save anchoring costs.

[0061] like Figure 3 and Figure 4 As shown, an embedding groove 1211 is provided on the outer side of the embedding plate 121, and correspondingly, an embedding strip 21 is provided on the penetration pile 2 at the position of the embedding groove 1211.

[0062] In other embodiments of this application, at least two embedding slots 1211 can be provided along the length of the outer side of the embedding plate 121. Correspondingly, the number of embedding strips 21 corresponding to the embedding slots 1211 in the driven pile 2 is equal to the number of embedding slots 1211. This embodiment increases the connection area between the embedding component 12 and the driven pile 2, thereby enhancing the connection strength between the embedding component 12 and the driven pile 2. Furthermore, in this embodiment, the embedding slots 1211 and the embedding strips 21 can be provided in a thread-like manner. Specifically, the driven pile 2 is provided with threaded embedding strips 21, and the outer side of the embedding plate 121 is provided with threaded embedding slots 1211 that cooperate with the threaded embedding strips 21. The threaded connection or separation between the driven pile 2 and the embedding plate 121 is achieved by rotation.

[0063] Preferably, the length of the embedding strip 21 is greater than half the distance between two adjacent embedding slots 1211 and less than the distance between two adjacent embedding slots 1211. This ensures the reliability of the connection between the penetrating pile 2 and the anchoring foundation 1, while also ensuring the rapid separation of the penetrating pile 2 and the anchoring foundation 1.

[0064] The embedded strip 21 is fixedly connected to the cavity wall of the penetrating pile 2. For example, the embedded strip 21 is welded to the penetrating pile 2, or the embedded strip 21 is bolted to the penetrating pile 2, or the embedded strip 21 is riveted to the penetrating pile 2, or the embedded strip 21 is bonded to the penetrating pile 2.

[0065] The embedded strip 21 is an arc-shaped strip. The side of the embedded strip 21 that connects to the penetrating pile 2 is fitted against the cavity wall of the penetrating pile 2 to improve the connection strength between the embedded strip 21 and the penetrating pile 2. The circumference of the embedded strip 21 is coaxial with the penetrating pile 2.

[0066] The number of embedding strips 21 and the number of embedding slots 1211 can be equal or unequal. In embodiments where the number of embedding strips 21 and the number of embedding slots 1211 are unequal, the number of embedding slots 1211 can be more or less than the number of embedding strips 21, as long as a stable connection between the penetration pile 2 and the embedding component 12 is guaranteed. Preferably, the number of embedding strips 21 and the number of embedding slots 1211 are equal.

[0067] To further reduce the difficulty of connecting and separating the penetrating pile 2 and the anchor foundation 1, the dimension of the embedded groove 1211 along the axis of the penetrating pile 2 is larger than the dimension of the embedded strip 21 along the axis of the penetrating pile 2, so as to achieve a clearance fit between the embedded groove 1211 and the embedded strip 21.

[0068] The connector disclosed in this embodiment makes it easy to connect and separate the driven pile 2 from the anchor foundation 1, and the structure is simple.

[0069] Preferably, the penetration pile 2 is a hollow steel pipe pile, which eliminates the need to separately create a cavity in the penetration pile 2.

[0070] To further optimize the above technical solution, the anchoring foundation 1 of the anchoring equipment disclosed in this application also includes a sleeve 13.

[0071] like Figure 3 As shown, the sleeve 13 is fitted onto the embedded assembly 12, and the inner wall of the sleeve 13 is connected to the outer side of the embedded plate 121.

[0072] The outer edges of multiple embedded plates 121 are located on the same circumference. The sleeve 13 is cylindrical and is fitted onto the entire embedded assembly 12. The outer edge of each embedded plate 121 can be connected to the inner wall of the sleeve 13, ensuring the connection strength between the sleeve 13 and the embedded assembly 12.

[0073] Preferably, the diameter of the sleeve 13 is equal to the diameter of the driven pile 2, and the distance between the upper end face of the sleeve 13 and the embedding groove 1211 is equal to the distance between the lower end face of the driven pile 2 and the embedding strip 21, so that after the embedding assembly 12 is connected to the driven pile 2, the upper end face of the sleeve 13 abuts against the lower end face of the driven pile 2. At the same time, this design can also limit the cooperation between the anchoring foundation 1 and the driven pile 2. That is, when the upper end face of the sleeve 13 abuts against the lower end face of the driven pile 2, the height of the embedding groove 1211 and the embedding strip 21 is the same. At this time, rotating the driven pile 2 will allow the embedding strip 21 to slide into the embedding groove 1211, reducing the difficulty of connecting the driven pile 2 and the anchoring foundation 1 and shortening the assembly time of the anchoring equipment.

[0074] Preferably, the wall thickness of the sleeve 13 is equal to the wall thickness of the penetrating pile 2.

[0075] The sleeve 13 can increase the frictional resistance between the anchor foundation 1 and the soil, and improve the bearing capacity of the anchor foundation 1.

[0076] In this design, the embedding slot 1211 of the embedded component 12 is located outside the sleeve 13 to avoid the sleeve 13 affecting the connection between the embedded component 12 and the penetrating pile 2; at the same time, the anchor head 11 is also located outside the sleeve 13 to avoid affecting the connection between the mooring cable and the anchor head 11.

[0077] Preferably, the embedded plate 121 is welded to the inner wall of the sleeve 13.

[0078] To further enhance the bearing capacity of the anchor foundation 1, the anchor foundation 1 disclosed in this application also includes a pull-out component 14, which is used to increase the pull-out resistance of the anchor foundation 1.

[0079] In some embodiments of this application, the pull-out component 14 is connected to the outer wall of the sleeve 13.

[0080] like Figure 1 , Figure 3 , Figure 4 , Figure 8 and Figure 9 As shown, the pull-out component 14 is a Y-shaped component, including a web 141 and a wing 142. The web 141 is a straight plate, and the wing 142 is a V-shaped plate. The closed end of the wing 142 is connected to the web 141.

[0081] The web 141 is disposed perpendicular to the outer wall of the sleeve 13, and the included angle between the web 141 and the axis of the sleeve 13 is 0°-30°. Preferably, the included angle between the web 141 and the axis of the sleeve 13 is 0°, so as to minimize the resistance when the anchor foundation 1 is inserted.

[0082] The closed end of the wing plate 142 can be connected to any position along the length of the web plate 141. Preferably, the closed end of the wing plate 142 is connected to the upper end of the web plate 141.

[0083] The open end of the wing plate 142 faces upward to reduce the resistance when the anchor foundation 1 penetrates, while increasing the pull-out resistance and bearing capacity of the anchor foundation 1. The included angle of the wing plate 142 does not exceed 180°. The larger the included angle of the wing plate 142, the greater the resistance when the anchor foundation 1 penetrates the mud surface. The included angle of the wing plate 142 cannot be too small, as the pull-out resistance of the anchor foundation 1 will decrease. Preferably, the included angle of the wing plate 142 is 90°-120°.

[0084] In this scheme, there are multiple pull-out assemblies 14, which are evenly arranged along the circumference of the sleeve 13.

[0085] In some embodiments of this application, the dimension of the wing plate 142 along the radial direction of the sleeve 13 is smaller than the dimension of the web plate 141 along the radial direction of the sleeve 13, and there is a gap between the wing plate 142 and the outer wall of the sleeve 13. This design can also reduce the resistance of the anchor foundation 1 penetrating the mud surface to a certain extent and reduce the installation difficulty of the anchor foundation 1.

[0086] like Figure 3 , Figure 4 and Figure 5 As shown, the anchor head 11 includes a lifting lug 111, a lifting lug plate 112, an anchor plate 113, and an anchor neck plate 114.

[0087] Anchor plate 113 is located between two adjacent embedded plates 121, and both ends of anchor plate 113 are connected to the two adjacent embedded plates 121 respectively; anchor neck plates 114 are arranged in pairs opposite each other, the first end of anchor neck plate 114 is connected to anchor plate 113, and the second end of anchor neck plate 114 is connected to lifting lug plate 112; lifting lug 111 is installed on lifting lug plate 112, and lifting lug 111 is used to connect mooring cable.

[0088] like Figure 3 As shown, there are two anchor neck plates 114. The size of the lifting lug plate 112 is smaller than that of the anchor plate 113. The distance between the relatively arranged anchor neck plates 114 gradually decreases from the first end of the anchor neck plate 114 to the second end of the anchor neck plate 114. The width of the anchor neck plate 114 along the axial direction of the sleeve 13 gradually decreases from the first end of the anchor neck plate 114 to the second end of the anchor neck plate 114. The anchor plate 113, the anchor neck plate 114 and the lifting lug plate 112 together form a frustum-shaped structure, which is structurally stable.

[0089] The number of anchor neck plates 114 can also be four (not shown in the figure). The anchor plate 113 is a rectangular plate, and the four anchor neck plates 114 are connected to the four sides of the anchor plate 113 respectively.

[0090] The shape of the lifting lug 112 may be the same as or different from that of the anchor plate 113. Preferably, the shape of the lifting lug 112 is the same as that of the anchor plate 113 and the lifting lug 112 and the anchor plate 113 are arranged coaxially, and both the lifting lug 112 and the anchor plate 113 are rectangular plates.

[0091] When installing the anchoring equipment, insert the upper end of the embedding plate 121 of the embedding component 12 of the anchoring foundation 1 into the cavity of the penetrating pile 2. At this time, the lower end face of the penetrating pile 2 is flush with the upper end face of the sleeve 13, and the embedding strip 21 is flush with the height of the embedding groove 1211. Rotate the penetrating pile 2 or the anchoring foundation 1 to make the embedding strip 21 slide into the embedding groove 1211, thus completing the assembly of the penetrating pile 2 and the anchoring foundation 1.

[0092] A suction device can be installed on the top of the driven pile 2, and the driven pile 2 and the suction device form a suction cylinder; the whole assembly of the anchoring equipment and the suction device is hoisted to the target position, and the anchor foundation 1 is embedded into the soil under the action of the gravity of the anchoring equipment and the suction device; the suction device is activated to extract the seawater inside the driven pile 2, and the pressure difference is used to drive the anchor foundation 1 into the preset depth below the mud surface.

[0093] A pile hammer can also be installed on the top of the penetrating pile 2, and the penetrating pile 2 and the pile hammer form a pile anchor; the anchoring equipment is hoisted to the target position, and the pile hammer is used to drive the pile to penetrate the anchoring foundation 1 to a preset depth below the mud surface.

[0094] After the anchor foundation 1 is driven in, rotate the driven pile 2 so that the embedded strip 21 slides out of the embedded groove 1211. The embedded strip 21 is located between two adjacent embedded plates 121. Pull out the driven pile 2 to complete the installation of the anchor foundation 1.

[0095] This application also discloses a construction method for an anchoring device, applicable to the anchoring device described in the above scheme, including:

[0096] S1. Insert the embedding component 12 of the anchoring foundation 1 into the cavity at the lower end of the penetrating pile 2, rotate the penetrating pile 2, and let the embedding strip 21 of the penetrating pile 2 slide into the embedding groove 1211 of the embedding plate 121 of the embedding component 12 to connect the penetrating pile 2 and the anchoring foundation 1 to obtain the anchoring device.

[0097] S2. Hoist the anchoring equipment to the target location;

[0098] S3. Drive the pile into the anchoring equipment to a preset depth below the mud surface using a pile driving device;

[0099] S4. Rotate the penetrating pile 2 so that the embedded strip 21 slides out of the embedded groove 1211 to disconnect the penetrating pile 2 from the anchor foundation 1, pull out the penetrating pile 2, and leave the anchor foundation 1 in the soil.

[0100] The anchoring device disclosed in this application has a more precise installation position than drag anchors and vertical load anchors, which is consistent with the design value, and is also less expensive than pile anchors and suction anchors.

[0101] The anchoring equipment disclosed in this application can serve as a shared anchoring foundation 1 for connecting multiple mooring cables, thereby reducing the cost of mooring equipment.

[0102] In S3, the piling device is either a suction device or a piling hammer.

[0103] In an embodiment where the piling device is a suction device, a suction device is installed on the top of the driven pile 2, and the driven pile 2 and the suction device form a suction cylinder. When the anchoring equipment is lifted and lowered to the target position, the driven pile 2 is in an upright state, and the anchoring foundation 1 is completely embedded in the soil under the combined action of its own weight and the weight of the suction cylinder. The suction device is activated to extract the seawater in the driven pile 2, and the pressure difference is used to install the anchoring foundation 1 to a preset depth below the mud surface.

[0104] In an embodiment where the piling device is a piling hammer, the piling hammer is installed on the top of the penetrating pile 2, and the penetrating pile 2 and the piling hammer form a pile anchor. After the anchor foundation 1 is hoisted to the target position, the piling hammer drives the pile to drive the anchor foundation 1 to a preset depth below the mud surface.

[0105] The penetration pile 2 disclosed in this application is detachably connected to the anchor foundation 1, so that after the anchor foundation 1 penetrates to a preset depth below the mud surface, the penetration pile 2 can be pulled out, reducing the anchoring equipment left in the soil structure and further reducing the cost of the anchoring equipment.

[0106] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed, and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. The scope of this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described application concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. An anchoring device, characterized in that, It includes anchor foundation (1) and penetration pile (2). The penetration pile (2) is used to lower the anchor foundation (1) to the target position and penetrate the anchor foundation (1) to a predetermined depth below the mud surface. The anchoring foundation (1) includes: Anchor head (11), used to connect mooring cables; An embedded component (12) for anchoring in soil includes at least three radially arranged embedded plates (121), with the inner sides of two adjacent embedded plates (121) connected, the anchor head (11) installed on the embedded plate (121), and an embedded groove (1211) provided on the outer side of the embedded plate (121). The penetration pile (2) has at least a cavity at its lower end for covering the embedding assembly (12), and an embedding strip (21) is provided around the cavity. The penetration pile (2) is connected to the embedding groove (1211) through the embedding strip (21). The length of the embedding strip (21) is greater than half the distance between two adjacent embedding slots (1211) and less than the distance between two adjacent embedding slots (1211).

2. The anchoring device according to claim 1, characterized in that, The anchoring foundation (1) also includes a sleeve (13), which is fitted onto the embedded component (12) and connected to the outer side of the embedded plate (121) to increase the friction between the anchoring foundation (1) and the soil. The embedded groove (1211) and the anchor head (11) are located outside the sleeve (13).

3. The anchoring device according to claim 2, characterized in that, The diameter of the sleeve (13) is equal to the diameter of the penetrating pile (2); and / or, The distance between the embedding groove (1211) and the upper end face of the sleeve (13) is equal to the distance between the embedding strip (21) and the lower end face of the penetrating pile (2).

4. The anchoring device according to claim 2, characterized in that, The anchoring foundation (1) also includes a pull-out component (14), which is disposed on the outer wall of the sleeve (13) and is used to increase the pull-out resistance of the anchoring foundation (1).

5. The anchoring device according to claim 4, characterized in that, The pull-out component (14) includes a web (141) and a wing (142). The web plate (141) is perpendicular to the outer wall of the sleeve (13), and the angle between the web plate (141) and the axis of the sleeve (13) is 0°-30°. The wing plate (142) is a V-shaped plate, the closed end of the wing plate (142) is connected to the web plate (141), and the open end of the wing plate (142) faces upward; The width of the web (141) is greater than the width of the wing plate (142), and there is a gap between the wing plate (142) and the outer wall of the sleeve (13).

6. The anchoring device according to claim 1, characterized in that, The anchor head (11) includes: Lifting lug (111) is used to connect the mooring cable; Lifting lug plate (112) is used to install the lifting lug (111); An anchor plate (113) is located between two adjacent embedded plates (121) and connected to the two adjacent embedded plates (121); Anchor neck plates (114) are arranged opposite to each other, with the first end of the anchor neck plate (114) connected to the anchor plate (113) and the second end of the anchor neck plate (114) connected to the lifting lug plate (112).

7. The anchoring device according to claim 6, characterized in that, The size of the lug plate (112) is smaller than the size of the anchor plate (113); and / or, The shape of the lug plate (112) is the same as that of the anchor plate (113).

8. A construction method for an anchoring device, characterized in that, The anchoring device applicable to any one of claims 1-7 comprises: S1. Insert the embedding component (12) of the anchoring foundation (1) into the cavity at the lower end of the penetrating pile (2), rotate the penetrating pile (2) so that the embedding strip (21) of the penetrating pile (2) slides into the embedding groove (1211) of the embedding plate (121) of the embedding component (12) to connect the penetrating pile (2) and the anchoring foundation (1) to obtain the anchoring device; S2. Hoist the anchoring equipment to the target position; S3. Drive the pile into the anchoring device to a preset depth below the mud surface using a pile driving device; S4. Rotate the penetrating pile (2) so that the embedded strip (21) slides out of the embedded groove (1211), disconnect the penetrating pile (2) and the anchoring foundation (1), pull out the penetrating pile (2), and leave the anchoring foundation (1) in the soil.

9. The construction method of the anchoring equipment according to claim 8, characterized in that, The piling device described in S3 is a suction device or a piling hammer.

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