Drill anchor pile

Abstract

Drill Anchor Pile The present invention relates to an anchor configured to be embedded in a borehole (30) drilled into the seabed. The present invention relates to an anchor system (1) including a pile (2). Anchor pile (2) The narrow part of the body has a longitudinal axis (L) and is made up of an upper end (4) and a lower end (5). The cross section of the thin part (3) of the main body is from the upper end (4) to the lower end (5). In the direction toward the center of the shaft, it bulges along a portion of the longitudinal axis (L) and has at least one support. In use, the at least one bearing portion (7a, 7b) is adjacent to the hole (30). The locking medium is inserted between the locking portion and the locking member such that an annular gap (32) is formed between the locking portion and the locking member. The anchor pile (2) receives a locking medium in the annular gap (32). The soft material strikes the support parts (7a, 7b) and is fixed at a predetermined position in the hole (30). is locked to

Description

Technical Field

[0001] The present invention relates in particular to an anchor system for use on the seabed. This anchor system is suitable for use as a terminal point for mooring on the seabed or as an anchor. Further, it relates to a method of installing this anchor system.

Background Art

[0002] In the art, various anchor systems such as driven, suction, and embedded types are known. However, it has been found that such systems have several drawbacks. Commonly used anchor systems are limited in use for specific seabed soils and are also costly and time-consuming. In floating offshore wind (FOW) projects, the geological conditions can vary significantly at a single site. As a result, conventional anchor systems may not be suitable for use across the entire site. Furthermore, in offshore wind projects, a large number of anchor foundations are required, making it costly to use conventional anchor systems.

Summary of the Invention

[0003] One object of embodiments of the present invention is to avoid or mitigate these and other drawbacks of known anchor systems for mooring. According to a first aspect of the present invention, there is provided a system for mooring comprising an anchor pile configured to be embedded in a borehole drilled in the seabed, comprising a thin portion of the body and having one or more joints formed along the thin portion of the body. Further, the thin portion of the body has a longitudinal axis and has an upper end​ It is designed to sink completely into the borehole when in use. The anchor pile has one or more sections on the thinner part of the main body, and each section is on the thinner part of the main body. Having a cross-section larger than the cross-section of the part itself or any one or more joints It is. This cross-section has a bulge from the top end to the bottom end of the main body, and as a result it is slightly At the very least, it forms one support section. This creates an annular groove that receives the lock when in use. It is formed between at least one support portion and the portion adjacent to the hole. At this time the anchor pile It is secured by a locking device within an annular groove. This ensures sufficient friction is generated on the base of the locking device. This is the result of friction occurring between the support and the soil. When the anchor pile receives the locking medium into the annular groove, the locking medium The body is in close contact with the appropriate load-bearing soil layer of the support and hole, resulting in sufficient frictional resistance. As a result, it locks into place in the designated position within the hole. A second aspect of the present invention provides an anchor system including the following: Anchor systems described herein Locking device In a third aspect of the present invention, an anchor is inserted into a borehole drilled in the seabed to form a mooring. A method for installing the pile is provided, which includes the following steps: Steps to provide an anchoring system as described herein. An annular groove located between the support portion of the narrow part of the anchor pile body and the adjacent borehole. Fill the area with a medium that locks at least partially, and lock the anchor pile in place. To do. This invention involves inserting a locking medium into a boring to achieve a predetermined position. The present invention provides an anchoring system that can be fixed in place. In other words, the present invention provides a locking medium. This provides an efficient and reliable method for fixing an anchor system into a hole using a human body. The anchor system is highly reliable, for example, from at least 100 tons to over 1000 tons. It can support a wide range of loads. This invention addresses the weight imposed by mooring ropes and the like, for example, vertical and lateral weights exceeding 1000 tons. To provide an anchor system that can withstand directional loads. The anchor system of the present invention has boreholes arranged in a row, and is suitable for high-angle loads. It can be used. The anchor system of the present invention is securely fixed in a borehole and uses low-cost consumables. By using this system, the environmental impact is reduced compared to conventional anchoring mechanisms. The anchoring system of the present invention reduces friction caused by the introduction of a locking medium into an annular groove. It is configured to provide sufficient resistance, and also uses components for fixing. It can also be fixed in place by means of [unclear]. The shape (e.g., angle) of one or more support sections determines how the anchor pile receives tensile loads. When the rod is inserted, it generates hoop stress in the surrounding substrate inside the borehole, It is optimized to transmit the maximum compressive load through the frictional resistance resulting from the medium through which the load is applied. It is preferable that it be converted to [a specific form of]. The shape of the longitudinal axis of an elongated member is such that the diameter or cross-section between any two points on the longitudinal axis is Geometric variations can be introduced. The diameter or cross-section along the longitudinal axis can be changed. By attaching it, a box with a regular or irregular radial cross-section or a square box cross-section can be created. Cross-sectional, radial, and other conduit shapes, corrugated, or other geometric surface shapes as may be required. It can form any tapered or other cross-sectional shape. The upper end of the elongated member of the anchor system of the present invention is completely submerged in the boring hole and is preferably located in the boring hole below the seabed. It is desirable to be located in the boring hole below the seabed. The anchor system of the present invention is configured to provide an anchor pile for deep embedding. The anchor system of the present invention can be used, for example, in offshore applications. Furthermore, the anchor system of the present invention can be used, for example, even in deep sea. The anchor system of the present invention is preferably installed at a position two to three times deeper in the boring hole than a conventional anchor system embedded in the soil. The anchor system of the present invention is configured to be embedded under the soil portion at the upper part of the boring hole. It is ideal to install it at a position two to three times deeper in the boring hole than a conventional anchor system embedded in the soil. The anchor system of the present invention is configured to be embedded under the soil portion at the upper part of the boring hole. The depth of embedding of the anchor system is determined by the depth of the lower end of the elongated member of the anchor pile in the boring hole. The depth of embedding of the anchor system of the present invention is the depth required to engage with an appropriate bearing soil layer, and for example, there are cases where it is installed more than 100 meters below the seabed. In comparison, the depth of embedding of a conventional anchor system, such as a driven pile or a suction pile, is usually about 10 to 20 meters below the seabed, and the top of the pile is usually located near the seabed level. The depth of embedding of the anchor system is determined by the depth of the lower end of the elongated member of the anchor pile in the boring hole. The depth of embedding of the anchor system of the present invention is the depth required to engage with an appropriate bearing soil layer, and for example, there are cases where it is installed more than 100 meters below the seabed. In comparison, the depth of embedding of a conventional anchor system, such as a driven pile or a suction pile, is usually about 10 to 20 meters below the seabed, and the top of the pile is usually located near the seabed level. The depth of embedding of the anchor system is determined by the depth of the lower end of the elongated member of the anchor pile in the boring hole. The depth of embedding of the anchor system of the present invention is the depth required to engage with an appropriate bearing soil layer, and for example, there are cases where it is installed more than 100 meters below the seabed. In comparison, the depth of embedding of a conventional anchor system, such as a driven pile or a suction pile, is usually about 10 to 20 meters below the seabed, and the top of the pile is usually located near the seabed level. The depth of embedding of the anchor system is determined by the depth of the lower end of the elongated member of the anchor pile in the boring hole. The depth of embedding of the anchor system of the present invention is the depth required to engage with an appropriate bearing soil layer, and for example, there are cases where it is installed more than 100 meters below the seabed. In comparison, the depth of embedding of a conventional anchor system, such as a driven pile or a suction pile, is usually about 10 to 20 meters below the seabed, and the top of the pile is usually located near the seabed level. The depth of embedding of the anchor system is determined by the depth of the lower end of the elongated member of the anchor pile in the boring hole. The depth of embedding of the anchor system of the present invention is the depth required to engage with an appropriate bearing soil layer, and for example, there are cases where it is installed more than 100 meters below the seabed. In comparison, the depth of embedding of a conventional anchor system, such as a driven pile or a suction pile, is usually about 10 to 20 meters below the seabed, and the top of the pile is usually located near the seabed level. The depth of embedding of the anchor system is determined by the depth of the lower end of the elongated member of the anchor pile in the boring hole. The depth of embedding of the anchor system of the present invention is the depth required to engage with an appropriate bearing soil layer, and for example, there are cases where it is installed more than 100 meters below the seabed. In comparison, the depth of embedding of a conventional anchor system, such as a driven pile or a suction pile, is usually about 10 to 20 meters below the seabed, and the top of the pile is usually located near the seabed level. The depth of embedding of the anchor system is determined by the depth of the lower end of the elongated member of the anchor pile in the boring hole. The depth of embedding of the anchor system of the present invention is the depth required to engage with an appropriate bearing soil layer, and for example, there are cases where it is installed more than 100 meters below the seabed. In comparison, the depth of embedding of a conventional anchor system, such as a driven pile or a suction pile, is usually about 10 to 20 meters below the seabed, and the top of the pile is usually located near the seabed level. One or more joints include connecting joints for connecting adjacent elongated member portions to provide an elongated member. One or more joints include connecting joints for connecting adjacent elongated member portions to provide an elongated member. The bearing portion of the elongated member is preferably composed of at least one tapered portion. The angle of each taper follows the specific requirements of the anchor system. For example, it can be selected and changed according to the on-site soil conditions and the design requirements of the pile. For example, the optimized angle of each tapered portion of the bearing portion extends in a plane perpendicular or transverse to the longitudinal axis of the elongated member. The bearing portion of the elongated member is preferably composed of at least one tapered portion. The angle of each taper follows the specific requirements of the anchor system. For example, it can be selected and changed according to the on-site soil conditions and the design requirements of the pile. For example, the optimized angle of each tapered portion of the bearing portion extends in a plane perpendicular or transverse to the longitudinal axis of the elongated member. The bearing portion of the elongated member is preferably composed of at least one tapered portion. The angle of each taper follows the specific requirements of the anchor system. For example, it can be selected and changed according to the on-site soil conditions and the design requirements of the pile. For example, the optimized angle of each tapered portion of the bearing portion extends in a plane perpendicular or transverse to the longitudinal axis of the elongated member. The bearing portion of the elongated member is preferably composed of at least one tapered portion. The angle of each taper follows the specific requirements of the anchor system. For example, it can be selected and changed according to the on-site soil conditions and the design requirements of the pile. For example, the optimized angle of each tapered portion of the bearing portion extends in a plane perpendicular or transverse to the longitudinal axis of the elongated member. It is desirable to extend at least at two angles. Also, the optimization of each tapered portion of the bearing surface The optimized angle is preferably 10 degrees or less with respect to a plane extending perpendicular or transverse to the longitudinal axis of the elongated member The optimized angle of each tapered portion of the bearing surface is preferably 2 degrees or more and 10 degrees or less with respect to a plane extending perpendicular or transverse to the longitudinal axis of the elongated member The tapered portion may be configured to extend radially outward from the longitudinal axis of the narrow portion of the body For example, the tapered portion may be configured to extend radially outward from the longitudinal axis of the narrow portion of the body toward the base end of the boring hole As a result, the maximum diameter of the tapered portion is at or near the lower end of the tapered portion In one embodiment, the anchor system is composed of one or more (preferably multiple) bulging portions These extend away from the longitudinal axis of the narrow portion of the body The bulging portion(s) can be configured to extend away from the longitudinal axis of the narrow portion of the body at any suitable angle For example, the bulging portion may extend radially outward The bulging portions are preferably arranged at intervals along the length of the system It should be understood that any suitable number can be set according to specific requirements These multiple bulging portions can also be spaced equidistantly from each other Each portion extending outward can also have any suitable shape and / or dimension Furthermore, it is also possible to have one or more, preferably each, the same shape and / or dimension as the other outwardly extending portions ​​​​​​In one embodiment, the bulging portion protrudes radially outward from the narrow portion of the main body. At least one box section, for example a square box section, and / or outward from the narrow part of the main body It has at least one angled surface that is inclined to the side. The slender part of the body is arbitrary geometric It may include outwardly extending main body parts (multiple) having a specific shape. In this case, it may bulge outwards. The parts (or multiple parts) are at least the parts that extend diagonally with respect to the longitudinal axis of the slender part of the main body. It has one face. One or more bulging parts are provided between the narrow parts of the adjacent main body (main body) It is distinct from one or more joints (configured to connect the thin parts of the annex). One or more joints in the narrower parts of the main body of the carp pile have a tapered upper surface. It is equipped. However, this tapered top surface is a medium that locks into place. This is different from the support surface that transmits compressive load to the base material of the hole. For example, one or more, preferably each bulging part, laterally aligns the surface of the narrow part of the main body. It comprises at least one conduit that cuts, for example, across the surface of the swollen part. It is configured to provide a flow path that allows the fluid to flow. At least one conduit is this It extends at any appropriate angle with respect to the longitudinal axis of the slender part of the body. At least one conduit is located in the upper section of the narrow and / or bulging part of the main body. To form a channel or groove between the lower section and the lower section. At least one conduit is preferably positioned parallel to the longitudinal axis of the slender part of the main body. This causes the conduit to extend along a portion of the longitudinal axis of the thinner part of the main body. . In one embodiment, the slender portion of the body includes at least one bulging portion, and Composed of: The main body has a first conical portion that is coaxial with the longitudinal axis of the slender part, and the first conical portion Accordingly, the cross-section of the thinner part of the main body has a bulge in the direction from its upper end to its lower end. The main body has a second conical section that is coaxial with the longitudinal axis of the slender part, and this second conical section The cross-section of the main body tapers in the direction from its top end to its bottom end. In one embodiment, the slender portion of the body includes at least one outwardly extending body portion, Composed from the bottom: The main body has a first conical portion coaxial with the longitudinal axis of the slender part, and along the first conical portion The cross-section of the thinner part of the main body has a bulge in the direction from its upper end to its lower end. The second conical section is coaxial with the longitudinal axis of the slender part of the main body, and along the second conical section The cross-section of the main body tapers from its top end to its bottom end. A tubular section coaxial with the longitudinal axis (L) of the slender part of the main body. This is the first conical part and the second It extends between the conical part and the other part. The first conical portion should preferably have a bearing surface. The taper angle of the first conical section is smaller than the taper angle of the second conical section. It is desirable. The taper angles of the first and second conical sections are determined according to the specific requirements of the anchor system body. And it may be any appropriate angle. In one embodiment, the angle of the taper of the first cone This angle may be the same as the taper angle of the second cone. The taper angle of the second conical section is varied to allow for easy insertion into the hole in the main body. It is also possible. The taper angle of the first conical section ensures efficient fixing of the anchor system. Set it to provide a ring-shaped space with sufficient height. Each cone has a first free end and a second opposing end located adjacent to another cone or tubular portion. It has the following characteristics. The length of the conical portion is measured between the first free end and the second opposing end. Each conical section can be optionally modified according to the specific requirements of the slender part of the anchor system body. Please understand that it can have an appropriate length. The first conical portion is preferably more elongated along the length of the main body than the second conical portion. stomach. The slender part of the main body is at least a portion of the first conical portion and at least of the second conical portion It is provided with at least one conduit that extends along a tubular portion (if any). That would be preferable. The main body consists of at least one component arranged parallel to the longitudinal axis (L) of the slender part of the main body. It consists of two conduits. These conduits are at least a part of the first conical portion and a part of the second conical portion. Even if absent, it extends along a tubular section (if present). At least a portion of the anchor pile body consists of a thin part of the body and a borehole and a thin part of the body. A lock is placed within an annular gap provided between the longitudinal axis portion of the part. It features a high-friction coating configured to increase friction between the medium and the device. This high-friction coating is suitable for bearing surfaces, such as tapered surfaces and / or tapered surfaces. It is desirable that it be provided in a specific area. The high-friction coating is preferably provided on the tubular portion on the first conical portion. It is preferable that the conical portion of part 2 does not have this high-friction coating. The high-friction coating can increase friction between the bearing surface of the main body and the locking medium. Any coating is acceptable. A layer, sheet, or granular form is preferable. The friction coating is applied along a predetermined length of the longitudinal axis of the main body by any suitable means. It is applied to the bearing surface or otherwise installed on the bearing surface. In the longitudinal direction of the body It is desirable to apply it to the part of the shaft where the cross-section increases. The high-friction coating has one or more bulges. It may be applied along at least part of the area where it is applied. Asphalt or other suitable It is desirable that it be made from suitable materials. In one embodiment, at least a portion of the main body is provided with fixing means, adjacent to the borehole. A machine penetrates the contact area, between the anchor system body and the soil layer adjacent to the borehole. It is configured to be fixed to the target. The fixing means is operable to be driven outward from or away from the main body, It is desirable that the adjacent portion of the hole be able to penetrate through it. The fixing means can be implemented, for example, by at least one additional element. For example, a cone-shaped pointed Various shapes can be used. Alternatively, for example, it can be constructed using conical bolts. The bulging portion may include one or more, preferably multiple, fastening means. The fixed means can be arranged at intervals along the length of the thin part of the main body, and it expands They may be arranged at intervals from each other along the length of the part. Any appropriate number of fixing means can be installed. One or more of the multiple fastening means are at different angles to the longitudinal axis of the slender part of the main body. It is configured to extend in increments. The thin part of the main body is fixed by multiple different connections from the thin part of the main body. This can be improved by using multiple fixing means that extend at a certain angle. The thinner part of the anchor pile body is a tubular hollow containing multiple ports in at least part of it. It is desirable that it be formed as a body. This port is the internal volume of the narrow part of the body and the hole It is configured to establish fluid flow between an annular groove defined between adjacent portions. A port (single or multiple) is formed by one or more protruding parts. The anchor system further includes an endpoint for the mooring rope to connect to it. In this configuration, the end point of the mooring line (anchor line) is the narrow part of the anchor pile body. It is integrally connected to the upper end. The end point of the mooring line (anchor line) is connected to the main It is desirable that the slender part of the body extends axially and is concentric with the longitudinal axis (L). The in-terminus can be radially offset from the upper end of the anchor pile, Around the narrower part of the main body, or through the narrower part of the main body, the pumped-up fluid This makes it possible to establish a route for that purpose. In one embodiment, the anchor system further comprises a guide tube, and the guide tube The distal end is connected to the upper end of the slender part of the main body, or adjacent to the upper end of the main body. Some are composed of these elements. In one embodiment, the anchor system consists of the following: A guide is provided which is positioned to be placed at the opening of a borehole, and when used, Align the borehole and its position to allow the anchor pile to pass through and enter the borehole. It is equipped with an open-end guide channel configured to allow access within the borehole. Once installed, it is designed to be detachable from the anchor pile. In one embodiment, the guide has a first end configured to contact the borehole and , including a second opposing end. The guide extends between its first end and the second end. It may also include additional slots, which are connected to guide channels. The rod should ideally be configured so that the mooring line can pass through it. The slots are substantially parallel to the longitudinal axis of the guide, for example, the longitudinal direction of the guide channel. It is desirable that it extends substantially parallel to the axis. The guide can also be constructed in a conical shape. The guide can be constructed from a material that is flexible. It is also possible. Guide channels can be placed near the center. They can also be constructed from soft or deformable materials. It is possible. Methods for inserting anchor piles into boreholes, for example, when drilling into the seabed to form a mooring structure. The method of installation in a drilled borehole involves the anchor pile being fully received within the borehole. Before inserting the locking medium, pass the anchor pile through the borehole. It is desirable to include the following. In one embodiment, the anchor pile also contacts the bottom of the hole. be. The preferred method for installing anchor piles is to drill boreholes and then install anchor piles Insert the shim, and then support one or more of the thinner parts of the anchor pile body. A medium that locks into an annular groove defined between the section and the adjacent borehole. This involves inserting and locking the anchor in place in a so-called "single pass" It will be implemented. When in use, the annular groove formed between the support part of the main body and the adjacent borehole is located inside the hole. A locking mechanism is introduced to the narrow part of the main body located at a predetermined depth. At that time, a portion of the hole's height is filled with the locking medium, and the support part of the narrow part of the main body is sufficient To a sufficient extent to provide a secure lock, for example, by being introduced into the annular gap so as to completely cover it. ru. The medium used for locking is, for example, loose aggregate, grout, cement, or any of the above. It can be composed of one or more of the possible combinations. The method for installing the anchor pile preferably includes the following: (Translator's note: The numbers are as in the original text) The lower end of the thin part of the main body is passed through the guide channel of the guide. To introduce into a hole; Remove the guide from the anchor pile. The method for installing the anchor pile preferably includes the following: iii. The thin part of the main body passes through the guide channel of the guide, and the thin part of the main body is in a predetermined hole The process of introducing the material until it reaches the desired depth. iv. When the locking medium is inserted into the annular groove and the main body is locked in place, the guide Remove the dove from the anchor pile. The locking medium may be supplied directly from the top of the borehole into the annular groove by fluid. stomach. The thinner portion of the anchor pile body is preferably formed as a tubular hollow body. The medium that locks the borehole is a fluid supplied from a hollow tube inside the borehole and / or It can be supplied as a slurry (a thick, viscous substance). In one embodiment, the slender portion of the main body is provided with one or more, preferably multiple, ports. The ports are located on at least part of the length of the main unit. Each port establishes fluid communication between the internal volume of the body and the annular groove(s)(s)(s). It is preferable that it be configured in such a way. The medium that locks is passed through the elongated main body. (It is preferable to pass the fluid medium through the upper end of the main body (for example, a hollow tubular body)) The fluid may be supplied to a groove. The fluid is supplied to the internal volume of the body, for example, through a port(s) By pumping through this, the locking medium is delivered in fluid form to the annular groove(s). It may be supplied to them. In one embodiment of the present invention, the anchoring system is an anchor From the lower end of the pile upwards toward the upper end of the pile, preferably in sequence, boring This invention presents a unique method for supplying fluid to fill holes and annular grooves (multiple grooves are possible). This is achieved by having multiple ports installed on at least a part of the main unit. The size of this port (for example, the maximum diameter of the port) is far from the bottom edge of the slim part of the main body. Configured to decrease as it progresses. By installing it in this way, the supplied lock will The discharged material flows towards the bottom of the narrow part of the main body and is discharged from the main body through the largest port. It is released. The locking medium flows to the bottom end of the narrow part of the main body and to the largest port. Alternatively, filling the annular groove of an adjacent port will cause increased pressure to flow upward along the body. It rises and is discharged through a port slightly smaller than the largest port. Therefore, In this invention, between the surface and adjacent portions of the holes of multiple bearings arranged along the length of the main body We provide an anchor system for efficiently and reliably filling the formed annular groove. This ensures that the anchor pile is securely fixed in the predetermined position within the hole. can. This method involves supplying a locking medium into the hole before driving the anchor pile into the hole. This is preferable. Please understand that the geological structure changes along the depth of the borehole. In the construction method, at least a portion of the mooring cable is embedded in the surrounding geological material during the installation and fixing of the structure. The fixing system is configured to be placed under sufficient tension to cut. The narrow part of the main body is installed at a predetermined depth, and the entire narrow part of the main body enters the borehole. This is preferable. The upper end of the slender part of the main body is at a predetermined distance below the seabed in the borehole. It is positioned. The slender part of the main body is entirely inserted into the borehole and fixed inside the borehole. As a result of being subjected to tensile load, the mooring rope is at the seabed and the upper end of the narrow part of the main body It forms a catenary curve located between the upper and lower layers. The mooring cable engages with the soil layer through friction and contact with the soil layer. The opposing bearing transmits the tensile load to the adjacent soil layer. The catenary curve of the mooring cable As a result, the anchor system of the present invention significantly reduces axial load (thrust load). It is possible. To reduce the axial load on the narrow part of the main body, the effective diameter is increased and the mooring rope Increase the load-bearing surface. The anchor system is designed to be inserted into at least a portion of the mooring rope, for example, into a borehole. A protective shield configured to surround and protect at least the entire length of the mooring rope. It also features a protective sheath. The protective sheath is protected from friction and / or abrasion from surrounding geological materials. It is preferable that the protective sheath be configured to protect the mooring rope from damage caused by, for example. For example, steel wrap, thermoplastic, or steel cloth-wrapped (braided) parts, It can be constructed using a combination of similar parts. The protective sheath can increase frictional resistance while also increasing the load-bearing surface area of ​​the mooring rope. Furthermore, load-bearing components such as steel plates are incorporated into the protective sheath to withstand the load on the geological formation. It is also possible to increase the load and further reduce the axial load in the anchor pile. A load-bearing member like this may be directly attached to the mooring rope. In one embodiment, the present invention is configured such that even if damage occurs, it is only partially damaged. We provide an anchoring system. This anchoring system ensures that the entire system is not damaged. It is composed of the following. In particular, the slender part of the main body is supported by the aggregate within the borehole. It is secured and fixed. During the peak load, the aggregate (acting as a quasi-fluid) and the main body are fine. The part may move axially along the borehole or come loose. Each time the load drops below a certain level, the locking medium resets within the annular groove. And, while continuously applying high frictional force to the bearing surface of the thin part of the main body, the thin part of the main body Lock it into the designated position within the hole. [Brief explanation of the drawing]

[0004] Hereinafter, embodiments of the present invention will be described illustratively with reference to the attached figures. [Figure 1] This is a schematic diagram showing a cross-section of an anchor system according to one embodiment of the present invention. [Figure 2] This is a schematic diagram showing the anchor system inside the borehole shown in Figure 1. [Figure 3] This is a schematic diagram of the bulging portion of an anchor system according to one embodiment of the present invention; [Figure 4] This is a schematic diagram showing the flow path of the locking medium used via the anchor system in Figure 1. [Figure 5] This is a schematic diagram showing the flow path of the locking medium used in the anchor system shown in Figure 1 within a borehole. [Figure 6] Figure 1 is a schematic diagram showing the flow path of the locking medium introduced via the anchor system toward the lower end of the anchor system. [Figure 7]Figure 1 is a schematic diagram showing the flow path of the locking medium introduced via the anchor system, which flows toward the center of the narrow part of the main body of the anchor system. [Figure 8] Figure 1 is a schematic diagram showing the flow path of the locking medium introduced via the anchor system toward the upper end of the anchor system. [Figure 9] This is a schematic diagram of a guide based on one embodiment of the present invention. [Figure 10] This is a schematic diagram showing the changes over time in the anchor system shown in Figure 1, which is fixed inside a borehole. [Modes for carrying out the invention]

[0005] Details of the invention Referring to the diagram, the anchor system 1 is located in a borehole 30 drilled in the seabed. It consists of anchor piles 2 configured to be embedded. The anchor piles 2 are longitudinal It has a directional axis and consists of a slender part 3 of the main body, which is made up of an upper end 4 and a lower end 5. The slender part 3 of the main body consists of two spaced-apart bulges 6a and 6b. The parts 6a and 6b are arranged at approximately equal intervals along the length of the thin part 3 of the main body. This can be seen. However, members 6a and 6b are provided at any appropriate position on the thin part 3 of the main body. Please understand that this is acceptable. The cross-section of the slender part 3 of the main body is in each of these two outwardly extending main body members 6a and 6b. It can be seen that it bulges in a direction that extends along the longitudinal axis from its upper end 4 to its lower end 5. . The illustrated embodiment has two separate, outward-extending main body portions 6a and 6b, but the anchor The ring system 1 may consist of any appropriate number of outwardly extending body parts 6a, 6b. I want you to understand the good. For example, System 1 is, for example, the depth of the borehole 30, Depending on the specific requirements of the ker system, it may consist of a single bulging part. It may consist of two or more bulging parts, for example, three, four, or five. Each of the two separate, outwardly extending main body members 6a and 6b is a medium that locks when in use. An annular gap 32 for receiving is formed between the bearing surfaces 7a, 7b and the adjacent portion of the borehole 30. To enable this, bearing surfaces 7a and 7b are provided. Each outwardly extending main body member 6a, 6b comprises a first conical portion 8a, 8b, a tubular portion 9a, 9b, and The main body consists of a second conical section 10a, 10b that is coaxial with the longitudinal axis (L) of the slender section 3. Along the first conical portions 8a and 8b of each main body member 6a and 6b, the cross-section of the slender portion 3 of the main body is at the upper end It bulges out from point 4 towards the lower end point 5. The cross-section of the thin part 3 of the main body is along the second conical parts 10a and 10b of each main body part 6a and 6b, above It tapers from end 4 towards the bottom end 5. The tubular portions 9a and 9b are located between the first conical portions 8a and 8b and the second conical portions 10a and 10b. do. The first and second conical portions 8a, 8b, 10a, and 10b form tapered portions that become bearing surfaces 7a and 7b. However, the protruding members 6a and 6b support, are adjacent to, and hold the locking medium. To provide support parts 7a and 7b suitable for doing so, they may have any suitable shape or configuration. I hope you understand the good. Each of the first conical section and the second conical sections 8a, 8b, 10a, and 10b is the thinner part of the main body. It extends diagonally with respect to the longitudinal axis (L) of part 3 (i.e., it defines the angle of the taper). Provides a tapered section. In the illustrated embodiment, the first conical portions 8a and 8b are tapered to the second conical portions 10a and 10b. It is smaller than the angle. However, the first and second conical parts 8a, 8b, 10a, 10b The angle may have any suitable angle depending on the specific requirements of the anchor system 1. I hope you understand. Each conical portion 8a, 8b, 10a, 10b is located in the tubular portion 9a, 9b, or in the tubular portion 9a, Each conical portion 8a, 8b, 10a, 10b has a first free end adjacent to 9b and a second opposing end. The length is measured between its first free end and its second opposing end. From Figures 1 and 3, the first It was found that the conical portions 8a and 8b have a longer length than the second conical portions 10a and 10b. However, each conical section can be customized according to the specific requirements of the anchor system. Please understand that it is possible to have an appropriate length of meaning. In the illustrated embodiment, the cross-sectional dimensions of the second end opposite each conical portion 8a, 8b, 10a, 10b are shown. This is substantially the same as the cross-sectional dimensions of the tubular portions 9a and 9b. This allows the anchor device 1 to be bolted It can be smoothly inserted into the ring hole. Each of the bulging parts 6a, 6b further extends the conduits 11a, 11b which are installed at intervals. The conduits 11a and 11b extend in a direction substantially parallel to the longitudinal direction L of the narrow portion 3 of the main body. The conduits 11a and 11b consist of a first conical portion 8a and 8b, a tubular portion 9a and 9b, and a second cone. It extends along at least a portion of the shaped parts 10a and 10b. In the illustrated embodiment, the conduits 11a and 11b are provided as channels. First projection member 6a The channel 11a is aligned with the channel 11b of the second projection member 6b. However, the channels may be placed in any suitable position, for example, other, for example It should be understood that compensation can be made between adjacent channels provided on protruding members. The tapered bearing surfaces 7a and 7b of the protruding members 6a and 6b are made of high-friction materials such as asphalt. A coating is applied. The high-friction coating is applied to the narrow part 3 of the main body and the rods received in the annular gap. It is configured to increase friction between the medium to which the lubricant is applied. Referring to Figure 3, in one embodiment, the main body member 6a extending to the outside of the thin portion 3 of the main body is - A movable fixing that penetrates the adjacent portion of the wall of the ring hole 30 and establishes a fixed connection with it. The device includes means 12. It can be seen that the fixing means 12 is provided on the tubular portion 9a of member 6a. Figure 3 illustrates only the fixing means located on a single bulging member 6a, but the bulge Please note that one or more of the components 6a and 6b may each include a fixing means 12. I would like you to explain it. The fixing means 12 extends from the narrow part 3 of the main body to penetrate the adjacent portion of the borehole wall 30. It can be operated to be driven in a direction or away from it. In the illustrated embodiment, the fixing means 12 is a cone point bolt. However, Means 12 are any suitable fixing means 12 that can be driven outward to penetrate the borehole wall 30. Please understand that this is acceptable. The slender parts 3 of the main body, for example, the main body members 6a and 6b extending outward, include one or more fastening means 12. It may be there. The fixing means 12 extends outward along the length of the thin part 3 of the main body, for example. They may be arranged at intervals from each other along the length of members 6a, 6b (or tubular parts 9a, 9b). stomach. One or more of the multiple fixing means 12 are positioned relative to the longitudinal axis of the corresponding slender portion 3 of the main body. It is configured to extend at different angles. The elongated means is fixed to the thin part 3 of the main body. It was found that this could be improved by using fixing means 12 that extend at multiple different angles. It is. As for the method of installing the anchor pile 2 in the borehole 30 drilled in the seabed, see Figures 4 to 4. As shown in 9, before inserting the locking medium, the anchor pile 2 is in the borehole 30 Fill the borehole 30 with the anchor pile 2 described herein until it is fully accepted inside. The upper end 4 of the slender part 3 of the main body is fully received within the hole 30, and the surface of the seabed. It is located at a predetermined depth below. In one embodiment, the anchor pile 2, for example, the narrow part of the main body The lower end 5 of part 3 is in contact with the bottom of the borehole 30. During installation, a guide 20 equipped with a guide channel 21 is positioned in a predetermined location at the opening of the hole 30. The guide channel 21 is aligned within the borehole 30. Anchor pile 2 It is aligned with the guide channel 21 of the guide 20 and drills through the guide channel 21. It is inserted into the opening of the hole 30. Then the anchor pile 2 is driven into the hole 30. After that, the guide 20 is removed from the anchor pile 2. The locking medium is supplied directly from the top of the borehole 30 into the annular groove 32 as a fluid medium. It is also possible. Alternatively, the medium for locking is an annular groove at the bottom of the thin part 3 of the main body. It can also be supplied to 32 with a fluid medium. The thin part 3 of the main body of the anchor pile 2 is shown in Figures 4-4. As shown in 8, the locking medium is formed as an essentially tubular hollow body, and is hollow Provided as a fluid and / or sediment pumped from inside the hole 30 through the tubular main body 3. It will be done. As shown in Figures 4 to 8, the thin part 3 of the main body has ports 14a, 14b, and 14c installed at arbitrary intervals. Each port 14a, 14b, and 14c is located within the internal volume of the narrow part 3 of the main body and adjacent to the annular gap. It is configured to establish fluid communication between the 32 and the body. The medium that locks is the main body The fluid medium may be supplied to the annular groove through the narrow portion 3. In the illustrated embodiment, The medium to which the lock is applied is from the upper end 4 to the lower end 5 of the thin part 3 of the main body (for example, a hollow tubular body). The fluid is supplied in advance. The fluid, for example, fills the internal volume of the main body 3 through ports 14a, 14b, and 14c. Through this, a pump is used to supply the locking medium in the fluid medium to the annular gap 32. It is possible. Referring to Figures 6-8, the size of ports 14a, 14b, and 14c is measured from the lower end 5 of the narrow part 3 of the main body. It can be seen that it gets smaller as you move away. It is provided towards the lower end 5 of the thin part 3 of the main body. Port 14a (see Figure 6) is located towards the central region of the narrow part 3 of the main body, and port 14b is located there. The dimensions are larger than (see Figure 7). Furthermore, (see Figure 7) towards the central region of the thin part 3 of the main body. The previously installed port 14b (see Figure 8) is provided toward the upper end 4 of the narrow part 3 of the main body. Port 14c is larger in dimensions. This arrangement allows the anchor system 1 of the present invention to be The medium to which the lock is applied extends from the lower end 5 of the anchor pile 2 toward the upper end of the anchor pile 2. Then, sequentially and preferentially upward, the borehole 30 and the annular gap (one or more) 32 This makes it possible to provide a unique fluid arrangement method that is provided for filling. The supplied locking medium is positioned towards the lower end 5 of the thin part 3 of the main body. The medium that locks is preferentially discharged from the narrow part 3 of the main body through the large port 14a. Towards the lower end 5 of the thin part 3 of the main body is the largest port 14a or the annular port adjacent thereto. When the groove 32 is filled, the increased pressure causes the locking medium to move along the narrow part 3 of the main body. It then exits through a slightly smaller port 14b, which is located in the direction toward its upper end 4. The medium that locks in is filled with a slightly smaller port 14b or the adjacent annular groove 32. As this progresses, the increasing pressure causes the locking medium to move along the narrow part 3 of the main body. The output is routed through progressively smaller ports 16c, which are positioned in the direction toward the upper end 4, and adjacent to The annular grooves 32 are filled sequentially. Therefore, the present invention relates to a plurality of support parts arranged along the longitudinal direction of the slender portion 3 of the main body and To efficiently and reliably fill the annular gap formed between the adjacent portion of the borehole 30. This invention provides an anchor system 1 that can be used for anchoring. - The pile 2 can be securely fixed in a predetermined position within the hole 30. Once securely fixed, the mooring rope 40 attached to the upper end 4 of the anchor pile 2 is sufficient. Under tension, as shown in Figure 10, the surrounding soil structure is gradually cut, forming a catenary curve. This can be achieved. As a result, the thinner parts of the main body experience a decrease in axial force, and the entire device is damaged. The risk of injury is significantly reduced. Although the present invention has been described mainly with reference to seabed applications, Those skilled in the art will understand that the present invention is not limited thereto.

Claims

1. Anchor system including the following (1): - An anchor pile (2) configured to be embedded in a borehole (30) drilled in the seabed, the anchor pile (2) includes a slender portion (3) of a body having a longitudinal axis (L), and also includes an upper end (4) and a lower end (5); the upper end is configured to be completely embedded in the borehole (30) when in use; and - The anchor pile (2) comprises one or more portions located on the narrow portion (3) of the main body, each of the one or more portions having a cross-section larger than the cross-section of the narrow portion (3) of the main body and a joint formed along the narrow portion (3) of the main body, the cross-section of one or more portions bulging along a portion of the longitudinal axis (L) in the direction from the upper end (4) to the lower end (5), defining at least one support portion (7a, 7b), and an annular groove (32) for receiving a locking medium when in use is defined between at least one support portion (7a, 7b) and an adjacent portion of the borehole (30), and the locking medium is received in the annular groove (32) as a result of frictional resistance resulting from the locking medium contacting the support portion (7a, 7b) and the appropriate load-bearing soil layer of the borehole (30), thereby locking the anchor pile (2) in a predetermined position in the borehole (30).

2. The anchor system (1) according to claim 1, wherein the support portion (7a, 7b) includes at least one tapered portion.

3. The anchor system (1) according to claim 1 or 2, wherein the slender portion (3) of the main body includes portions (6a, 6b) that bulge outward from at least one slender portion (3) of the main body and / or an inclined surface that bulges outward and slopes from at least one slender portion (3) of the main body.

4. The anchor system (1) according to claim 3, wherein the slender portion (3) of the main body includes at least one conduit (11a, 11b) arranged essentially parallel to the longitudinal axis (L), the conduit (11a, 11b) extending along the portion of the slender portion (3) of the main body along the longitudinal axis (L) where the cross-section of the slender portion (3) of the main body increases, the at least one conduit (11a, 11b) thereby defining a channel between the upper section and the lower section of the slender portion (3) of the main body.

5. The anchor system (1) according to claim 4, wherein the thin portion (3) of the main body includes the following: - The first conical portion (8a, 8b) is coaxial with the longitudinal axis (L) of the slender portion (3) of the main body, and the cross-section of the elongated main body (11) bulges along this first conical portion (8a, 8b) in the direction from the upper end (4) to the lower end (5); - A second conical portion (10a, 10b) coaxial with the longitudinal axis (L) of the slender portion (3) of the main body, wherein the cross-section of the main body (3) tapers in the direction from the upper end (4) to the lower end (5) along this second conical portion (10a, 10b); and - Tubular portions (9a, 9b) that are coaxial with the longitudinal axis (L) of the slender portion (3) of the main body, and that extend between the first conical portion (8a, 8b) and the second conical portion (10a, 10b).

6. The anchor system (1) according to claim 5, wherein the taper angle of the first conical portion (8a, 8b) is smaller than the taper angle of the second conical portion (10a, 10b).

7. The anchor system (1) according to claim 6, characterized in that the first conical portion (8a, 8b) extends along a longer length of the thinner portion (3) of the main body than the second conical portion (10a, 10b).

8. The anchor system (1) according to claim 7, wherein the slender portion (3) of the main body includes at least one conduit (11a, 11b) arranged essentially parallel to its longitudinal axis (L), and the conduit (11a, 11b) extends in the following portion; - At least a portion of the first conical section (8a, 8b); - Tubular portions (9a, 9b); and - At least a portion of the second conical section (10a, 10b).

9. The anchor system (1) according to claim 8, wherein at least a portion of the narrow portion (3) of the body of the anchor pile (2) includes an adhesive high-friction coating configured to increase friction between the narrow portion (3) of the body and the locking medium received in the annular groove (32).

10. The anchor system (1) according to claim 9, wherein the adhesive high-friction coating comprises bitumen (synonymous with asphalt), a similar material, or a sheet material bonded to the narrow portion (3) of the main body.

11. The anchor system (1) according to claim 9 or 10, wherein the support portion (7a, 7b) includes at least one tapered portion, and the at least one tapered portion includes an adhesive high-friction coating.

12. The anchor system (1) according to claim 10, wherein at least a portion of the narrow portion (3) of the main body includes a fixing means (12) configured to be driven outward from the narrow portion (3) of the main body to penetrate the wall of the borehole (30), thereby establishing a fixed connection.

13. The anchor system (1) according to claim 12, wherein the fixing means (12) is a conical bolt.

14. The anchor system (1) according to claim 13, wherein the thin portion (3) of the main body includes a plurality of fixing means (12) arranged at intervals from one another along the length of the thin portion (3) of the main body.

15. The anchor system (1) according to claim 14, wherein one or more of the plurality of fixing means (12) are configured to extend at different angles with respect to the longitudinal axis of the thin portion (3) of the main body.

16. The anchor system (1) according to claim 10, wherein the narrow portion (3) of the body of the anchor pile (2) is formed as a substantially tubular hollow body having a plurality of ports (14a, 14b, 14c) arranged over at least a portion of its length, the ports (14a, 14b, 14c) being configured to establish fluid communication between the internal volume of the narrow portion (3) of the body and an annular groove (32) formed between the narrow portion (3) of the body and the borehole (30).

17. The anchor system (1) according to claim 3, wherein the mooring cable (40) is integrally connected to the upper end (4) of the thin portion (3) of the main body of the anchor pile (2), and the mooring cable (40) is aligned concentrically and axially with the longitudinal axis (L) of the thin portion (3) of the main body.

18. The anchor system (1) according to claim 5, further comprising a guide (20) configured to be positioned at the opening of the borehole (30), the guide (20) providing a guide channel (22) configured to align with the borehole (30) when in use and to allow the anchor pile (2) to pass through the borehole (30), and the guide (20) being configured to be removable from the anchor pile (2) after being positioned in the borehole (30).

19. The anchor system (1) according to claim 18, wherein the guide (20) includes a first end configured to contact the borehole (30) and a second end on the opposite side, and the guide (20) further includes a slot extending between the first end and the second end, the slot communicating with a guide channel.

20. The anchor system (1) according to claim 19, wherein the slot extends substantially parallel to the longitudinal axis of the guide (20).

21. The anchor system (1) according to claim 20, wherein at least the guide (20) is made of a brittle or deformable material.

22. A method for installing an anchor pile (2) in a borehole (30) drilled in the seabed to form a mooring anchor, comprising the following steps: i. A step of providing the anchor system (1) according to claim 1, and ii. A step of locking the anchor pile (2) in a predetermined position by filling the annular groove (32) formed between the support portion (7a, 7b) of the narrow portion (3) of the main body of the anchor pile (2) and the wall of the adjacent borehole (30) with a locking medium, at least partially.

23. The method according to claim 22, further comprising passing the anchor pile (2) through the borehole (30) until the anchor pile (2) is fully inside the borehole (30) before inserting the medium to be locked.

24. The method according to claim 23, further comprising the following steps: iii. The step of introducing the lower end (5) of the thin part (3) of the main body into the borehole (30) through the guide channel of the guide (20), and iv. Step of removing the guide (20) from the anchor pile (2).

25. The method according to claim 24, wherein the locking medium is supplied directly from the top of the borehole (30) to the annular groove (32) as a fluid medium.

26. The method according to claim 25, wherein the narrow portion (3) of the body of the anchor pile (2) is formed as essentially a tubular hollow body, and the locking medium is provided as a fluid and / or slurry that is pumped through the hollow tubular main body into an annular groove (32) between the narrow portion (3) of the body and the borehole (30).

27. The method according to claim 26, wherein the narrow portion (3) of the main body includes a plurality of ports (14a, 14b, 14c) arranged over at least a portion of its length, the ports (14a, 14b, 14c) are configured to establish fluid communication between the internal volume of the narrow portion (3) of the main body and an annular groove (32), the locking medium is provided in the fluid medium through the upper end (4) of the hollow narrow portion (3) of the main body, and the fluid is pumped through the ports (14a, 14b, 14c) through the internal volume of the narrow portion (3) of the main body to supply the locking medium in the fluid medium to the annular groove (32).

28. The method according to claim 27, wherein the slender portion (3) of the main body includes a plurality of ports (14a, 14b, 14c) over at least a portion of its length, and the size of the ports (14a, 14b, 14c) decreases as it moves away from the lower end (5) of the slender portion (3) of the main body.

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