CN211468697U - Flat plate anchor device with semicircular soil-loading plate - Google Patents
Flat plate anchor device with semicircular soil-loading plate Download PDFInfo
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- CN211468697U CN211468697U CN201921934166.5U CN201921934166U CN211468697U CN 211468697 U CN211468697 U CN 211468697U CN 201921934166 U CN201921934166 U CN 201921934166U CN 211468697 U CN211468697 U CN 211468697U
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Abstract
The utility model discloses a flat anchor device with a semicircular soil-holding plate, which comprises a flat anchor and soil-holding plates which are paired and have semicircular sections, wherein two mooring rings are respectively arranged at two ends of the upper part of each flat anchor plate; mooring rings are arranged in the middle of the outer wall of each semicircular soil-holding plate and on the outer sides of the two ends of the outer wall of each semicircular soil-holding plate, and the mooring rings in the middle of the outer walls of the two semicircular soil-holding plates are respectively connected with one mooring ring on the upper part of the anchor plate through anchor chains; the two semicircular soil-holding plates are oppositely assembled into a cylinder shape during working and are sleeved on the outer wall of the suction type barrel-shaped foundation, the flat plate anchor is clamped into the bottom of the barrel-shaped foundation for fixing, the flat plate anchor eye leaks out of the barrel-shaped foundation and is provided with the anchor chain, the semicircular soil-holding plates and the flat plate anchor penetrate into the seabed by means of the barrel-shaped foundation, the tension is applied to the anchor chain after the barrel-shaped foundation is removed to enable the anchor plates to rotate, and the paired semicircular soil-holding plates are unbundled, separated and embedded into the seabed. The utility model discloses semi-circular pocket native board has improved the resistance to plucking bearing capacity of flat anchor, effectively reduces the buried depth loss that the anchor slab produced at rotatory in-process.
Description
Technical Field
The utility model relates to an anchor technical field of deep sea floating platform or sea water box with a net specifically is a take flat plate anchor device of semi-circular pocket native board.
Background
In recent years, a new basic form of suction penetration type flat plate anchor (Suctionebededdemplanchor) has been widely used in gulf of Mexico and African waters, and has the main advantages of low cost, accurate positioning and simple construction. The planar shape of the flat anchor is rectangular, the flat anchor is vertically fixed in a suction type when being installed, and the caisson is penetrated to a preset depth under the action of self weight and negative pressure caused by pumping water. The caisson is pulled out after being separated from the flat anchor for future reuse. The flat anchor left in the clay seabed rotates under the traction of the anchor chain until the plate surface is nearly vertical to the anchor chain or the applied tension reaches the design value, as shown in figure 1. During the process of tensioning the anchor chain to rotate the anchor plate, the anchor plate moves upwards to generate burial depth loss. The difference in height of the anchor plate center before and after rotation is defined as the final lost burial depth. Under seabed conditions where the strength generally increases in direct proportion to the depth, the loss of burial depth during rotation adjustment can result in a reduction in bearing capacity, which can be as high as 20%.
In order to reduce the buried depth loss, a wing plate (Keyingflap) is usually provided above the anchor plate and rotatable about the anchor plate. The design is intended to increase the bearing area in the direction of movement of the anchor plate when the anchor plate is moved upwards by rotating the wing plates outwards at an angle relative to the anchor plate when the anchor plate is moved upwards, thereby reducing the upward displacement (i.e. the loss of burial depth) of the anchor plate and thus increasing the ultimate bearing capacity of the anchor plate. However, experimental studies and numerical calculations have made an objection to the practical effect of the wing plate, and even the trainees believe that the wing plate does not help to reduce the buried depth loss of the flat plate anchor.
Therefore, it is necessary to improve the configuration of the conventional flat plate anchor, and to design a flat plate anchor with a novel structure which can reduce the buried depth loss and improve the pulling resistance bearing capacity of the flat plate anchor.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a take flat plate anchor device of semi-circular pocket native board to solve the problem of the great buried depth loss that exists in the flat plate anchor work progress of prior art.
In order to achieve the above purpose, the utility model discloses the technical scheme who adopts is:
the flat plate anchor device with the semicircular soil-holding plates is characterized by comprising flat plate anchors and the soil-holding plates which are paired and have semicircular sections, wherein each flat plate anchor consists of an anchor plate and an anchor shank, the end part of each anchor shank is provided with an anchor eye, and two ends of the upper part of each anchor plate are respectively provided with a mooring ring; mooring rings are arranged in the middle of the outer wall of each semicircular soil-holding plate and on the outer sides of the two ends of the outer wall of each semicircular soil-holding plate, and the mooring rings in the middle of the outer walls of the two semicircular soil-holding plates are respectively connected with one mooring ring on the upper part of the anchor plate through anchor chains;
the two semicircular soil-loading plates are assembled into a cylindrical shape relatively during working and sleeved on the outer wall of the suction type barrel-shaped foundation, an anchor plate notch and an anchor eye notch which are matched with the flat plate anchor are arranged at the bottom of the barrel-shaped foundation, the flat plate anchor is clamped into the corresponding notch at the bottom of the barrel-shaped foundation for fixing, the flat plate anchor eye leaks out of the barrel-shaped foundation and is provided with an anchor chain, the semicircular soil-loading plates and the flat plate anchor are penetrated to the designed depth of a seabed for removing by means of the barrel-shaped foundation, pulling force is applied to the anchor chain after the semi-circular soil-loading plates are removed to enable the anchor plates to rotate, and the paired.
Take flat plate anchor device of semicircular pocket native board, its characterized in that: the semicircular soil-loading plate is processed into a semicircular cylinder shape by adopting an arc-shaped steel plate with the radian equal to 180 degrees, and the arc diameter of the concave surface is larger than the outer diameter of the barrel-shaped foundation.
Take flat plate anchor device of semicircular pocket native board, its characterized in that: the distance between two mooring rings on the anchor plate of the flat anchor is larger than the outer diameter of the barrel-shaped foundation.
Take flat plate anchor device of semicircular pocket native board, its characterized in that: the two semicircular soil holding plates are oppositely arranged, and the mooring rings at the corresponding positions of the two semicircular soil holding plates are bound and assembled into a cylinder shape through a detachable rope.
The utility model has the advantages that:
1. the utility model discloses in the outside on bucket shape basis, the area that runs through its plummet direction of in-process that sinks is the cross sectional area of circular slab, and this area is very little in the equipment of mated semi-circular pocket soil board to the soil body is very little to the resistance that it produced, and it is very little to run through the resistance influence to the sinking of whole device behind the visible increase semi-circular pocket soil board, does not basically have the difference with the construction of traditional flat anchor.
2. The utility model discloses semi-circular pocket soil board runs through to the design degree of depth with dull and stereotyped anchor is sunken, makes the anchor slab take place rotatoryly through applying pulling force to the anchor chain, and the rotatory in-process semi-circular pocket soil board of anchor slab drags the anchor slab through the cable wire and restricts and retrains, effectively reduces the buried depth loss that the anchor slab produced at rotatory in-process.
3. The utility model discloses when the flat anchor takes place to remove in the use, the outer load passes through the cable wire and transmits for semi-circular pocket soil board, and the position of semi-circular pocket soil board also takes place corresponding change, finally makes semi-circular pocket soil board can the pocket live the great seabed soil body along anchor chain pulling force direction to the resistance to plucking bearing capacity of flat anchor has been improved greatly.
4. The utility model discloses simple structure, the preparation is convenient, and the cost is lower, can provide great anchor power for offshore floating platform, mariculture box with a net etc..
Drawings
Fig. 1 is a schematic view of the construction steps of a conventional flat plate anchor.
Fig. 2 is the three-dimensional structure schematic diagram of the semicircular soil-holding plate of the utility model.
Fig. 3 is the assembly schematic diagram of the semicircular soil-holding plate of the present invention.
Fig. 4 is a schematic diagram of the three-dimensional structure of the flat anchor of the present invention.
Fig. 5 is an assembly diagram of the suction bucket of the present invention.
Fig. 6 is a schematic view of the utility model discloses rely on suction bucket gravity to sink and contact the seabed during the construction.
Fig. 7 is a schematic view of the suction bucket based on the sea bed into which the suction bucket is inserted.
Fig. 8 is a schematic view of the posture of the suction bucket after being removed.
Fig. 9 is a working state diagram of the present invention.
Description of reference numerals: 1. a semicircular soil-loading plate; 2. a mooring ring; 3. an anchor plate; 4. an anchor shank; 5. an anchor eye; 6. a barrel-shaped foundation; 7. a steel cord; 8. an anchor chain; 9. constructing a rope; A. a sea bed surface.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
A flat plate anchor device with a semicircular soil-holding plate comprises a semicircular soil-holding plate 1 and a flat plate anchor which are paired; the semicircular soil-holding plate 1 is a circular arc-shaped steel plate with the radian equal to 180 degrees, and mooring rings 2 are arranged on the outer sides of the middle part and two ends of the semicircular soil-holding plate 1; the flat anchor consists of an anchor plate 3 and an anchor shank 4, wherein the end part of the anchor shank 4 is provided with an anchor eye 5, and two mooring rings 2 are respectively arranged at two ends of the upper part of the anchor plate 3; the semicircular soil-loading plates 1 and the flat plate anchor penetrate into a seabed by means of a suction type barrel-shaped foundation 6, the bottom of the barrel-shaped foundation 6 is provided with an anchor plate notch and an anchor eye notch which are matched with the flat plate anchor, during construction, the flat plate anchor is clamped into the corresponding notch at the bottom of the barrel-shaped foundation 6 and is fixed, then mooring rings 2 of adjacent semicircular soil-loading plates 1 are bound by using subsequently releasable ropes, the paired semicircular soil-loading plates 1 are assembled on the periphery of the barrel-shaped foundation 6 to form a circle, the mooring rings 2 in the middle of the semicircular soil-loading plates 1 on the same side are fixedly connected with the mooring rings 2 on the anchor plates 3 by using steel cables 7, one end of each anchor chain 8 is moored on the anchor eye 5, after the semicircular soil-loading plates 1 and the flat plate anchor penetrate into the seabed to a designed depth by means of the barrel-shaped foundation 6 and the barrel-shaped foundation 6 is removed, the anchor plates 3 are rotated by applying a pulling force to the anchor chains 8, the, each semicircular soil-holding plate 1 restrains and restrains the anchor plate 3 through the steel cable 7 until the tensile force applied by the anchor chain 8 reaches the design value, and the construction is finished, so that the flat plate anchor device with the semicircular soil-holding plates is formed.
The above-mentioned "outer", "middle", "bottom" and "peripheral" directional words are determined based on the posture of the proposed flat anchor at the time of construction, as shown in fig. 5 to 8. The orientation words mentioned elsewhere in the specification are also presumed from this attitude. The above-mentioned orientations or positional relationships are based on the orientations or positional relationships shown in the drawings and are only for convenience of description and simplicity of description, but do not indicate or imply that the indicated device or component must have a specific orientation, configuration and operation and therefore should not be construed as limiting the present invention.
The semicircular soil-holding plate 1 is a circular arc-shaped steel plate with the radian equal to 180 degrees, the middle part and two ends of the outer side of the semicircular soil-holding plate 1 are respectively provided with a mooring ring 2, and the arc diameter of the concave surface of the semicircular soil-holding plate 1 is larger than the outer diameter of the barrel-shaped foundation 6, as shown in fig. 2 and 3.
The flat anchor consists of an anchor plate 3 and an anchor shank 4, wherein the end part of the anchor shank 4 is provided with an anchor eye 5, and two mooring rings 2 are respectively arranged at two ends of the upper part of the anchor plate 3; the distance between the two mooring rings 2 on the anchor plate 3 of the flat anchor is larger than the outer diameter of the bucket foundation 6, as shown in fig. 4. The proposed flat anchor is substantially the same as the conventional configuration except that no wing is provided. Typically, the anchor plate 3 is rectangular with the long side larger than the outer diameter of the bucket foundation 6 and mooring rings 2 are provided at both ends of the upper long side.
The mooring rings 2 binding the adjacent semicircular soil-receiving plates 1 with the subsequently releasable ropes assemble the paired semicircular soil-receiving plates 1 in a circular shape around the periphery of the barrel-shaped foundation 6, as shown in fig. 5. The area of the plumb direction in the sinking process is the cross section area of the circular fixing plate, and the area is very small, so that the resistance of the soil body to the circular fixing plate is very small. Therefore, the influence of penetration resistance on the whole device is very small after the semicircular soil-containing plates are added, and the construction is basically not different from that of the traditional flat plate anchor.
The 'rope capable of being detached subsequently' refers to that the strength of the rope is the lowest and the requirement for fixing the adjacent semicircular soil-holding plates 1 in the penetration process is met, so that the adjacent semicircular soil-holding plates 1 cannot be loosened and separated in the penetration process, and the construction cannot be carried out; but the strength of the anchor foundation is not too high, and the anchor foundation is easy to break in the subsequent use process, so that the adjacent semicircular soil-holding plates 1 are separated from each other and do not influence each other. Since the construction of the proposed flat anchor is generally completed within 24 hours, a rope whose strength is drastically reduced after soaking for more than 24 hours may be selected as the "subsequently releasable rope".
The barrel-shaped foundation is also called a suction pile (suction pile), is an inverted large-diameter steel drum with an opening at the bottom end and a closed top end, and is firstly partially inserted into soil to form a closed space in a predetermined sea area by means of the dead weight of the drum body during installation, and then gas and liquid between the inside of the drum and the soil body are pumped out, so that pressure difference is formed between the inside and the outside of the drum body, and the pressure difference is gradually pressed into the seabed to a predetermined depth to complete installation. The flat anchor is pressed into the seabed to the designed depth by means of the penetration effect of the suction bucket foundation. When the flat anchor is installed by depending on the barrel-shaped foundation, certain processing and transformation are needed to be carried out on the bottom of the barrel-shaped foundation, so that the barrel-shaped foundation can clamp and fix the flat anchor.
The semicircular soil-loading plate 1 is connected with the anchor plate 3 through a high-strength steel cable 7, and the steel cable 7 is made of flexible materials and can only transmit tensile force without generating bending moment, shearing force and the like. The mooring rings 2 connecting the two ends of the wire rope 7 will generate a large stress concentration. The strength of each component should satisfy the needs of loading effect under various operating modes, can not take place bucking and inefficacy under abominable operating mode. The stress concentration part should adopt the design of supplementary measure reinforcement, avoids the junction to produce great stress concentration and buckling and inefficacy.
The utility model discloses a detailed description of work progress as follows:
1. assembling the semicircular soil-loading plate and the flat plate anchor;
the mooring rings 2 of the adjacent semicircular soil-holding plates 1 are bound by using a subsequent releasable rope, the paired semicircular soil-holding plates 1 are assembled on the periphery of the barrel-shaped foundation 6 to form a circle, a flat anchor is clamped into a corresponding notch at the bottom of the barrel-shaped foundation 6 and fixed, and the mooring rings 2 of the semicircular soil-holding plates 1 on the same side are fixedly connected with the mooring rings 2 on the anchor plates 3 by using a steel cable 7, as shown in fig. 5.
2. The barrel-shaped foundation sinks to contact the seabed by means of self weight;
one end of an anchor chain 8 is moored on the anchor eye 5, a construction rope 9 is connected on the barrel-shaped foundation 6, the barrel-shaped foundation 6 is lifted based on the construction rope 9 to enter the seawater and be in a plumb state, the barrel-shaped foundation 6 is gradually lowered to be in a sinking contact with the seabed under the action of self weight and pressed into the seabed for a certain depth, and the structure is shown in figure 6.
Generally, the depth of the barrel-shaped foundation 6 pressed into the seabed under the action of self-weight is larger than the height of the bottom notch, so that the bottom of the barrel-shaped foundation 6 is sealed by seabed soil, a closed space is formed in the barrel-shaped foundation, and necessary conditions are provided for the subsequent air extraction to form negative pressure.
3. Extracting negative pressure to enable the barrel-shaped foundation to penetrate into the seabed to a designed depth;
the top of the barrel-shaped foundation 6 is provided with a water (gas) inlet and outlet valve, a connecting pipe is fixedly connected with the water (gas) inlet and outlet valve, air in the barrel-shaped foundation is pumped out through the connecting pipe to form internal and external pressure difference, so that the barrel-shaped foundation is penetrated into seabed soil, and finally the semicircular soil-holding plate 1 and the flat anchor at the bottom of the barrel-shaped foundation are pressed into the seabed soil to the designed depth, as shown in fig. 7.
4. Removing the bucket foundation;
after the flat plate anchor is pressed into the seabed to the designed depth, the interior of the barrel-shaped foundation 6 is inflated through the connecting pipe, so that the barrel-shaped foundation 6 gradually floats upwards, and finally the barrel-shaped foundation is lifted and removed, and after the barrel-shaped foundation is removed, only the semicircular soil-holding plate 1 and the flat plate anchor are left in the seabed soil body, as shown in fig. 8.
In order to facilitate the separation of the bucket foundation and the semicircular soil-receiving plate, a lubricant may be applied to the inner side of the semicircular soil-receiving plate 1.
5. Tensioning the anchor chain to enable the anchor plate to rotate to meet the design requirement;
the anchor plate 3 rotates by applying a pulling force to the anchor chain 8, and the semicircular soil-holding plates 1 drag and restrain the anchor plate 3 through the steel cable 7 in the rotation process of the anchor plate 3 until the anchor plate 3 and the anchor chain 8 are nearly vertical or the applied pulling force reaches a designed value, so that the construction is finished.
After the semicircular soil-holding plates and the flat plate are anchored and penetrated to the designed depth, the anchor plates rotate by applying pulling force to the anchor chain, and the semicircular soil-holding plates are used for restraining and restraining the anchor plates through the steel cables in the rotating process of the anchor plates, so that the burial depth loss of the anchor plates in the rotating process is effectively reduced.
When the flat anchor moves in the using process, the external load is transmitted to the semicircular soil-holding plates through the steel cables, the positions of the semicircular soil-holding plates are correspondingly changed, and finally the semicircular soil-holding plates can hold larger seabed soil bodies along the direction of the steel cables, so that the uplift resistance bearing capacity of the flat anchor is greatly improved.
The uplift bearing capacity of the flat plate anchor is composed of the friction force between the anchor plate and the semicircular soil-holding plate and the soil body and the gravity of the anchor plate and the semicircular soil-holding plate holding the seabed soil body, and the semicircular soil-holding plate can hold the larger seabed soil body along the direction of the steel cable, so that the proposed foundation has larger uplift bearing capacity compared with the traditional flat plate anchor.
Fig. 9 shows a possible operating state diagram of the present invention.
The strength of each component and the joint should meet the rotation and use requirements of the anchor plate, so that buckling and failure of the anchor plate are avoided under severe working conditions.
The utility model has the advantages of simple integral structure, convenient manufacture and lower cost, and can provide larger anchoring force for offshore floating platforms, mariculture net cages and the like.
The condition of a pair of semicircular soil-holding plates is only shown in the attached drawings, according to the proposed idea, the shape and the connection mode of the soil-holding plates can be changed to form other types of flat plate anchors with the soil-holding plates, which all belong to equivalent modification and change of the technology, and are not described again here.
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted; the same or similar reference numerals correspond to the same or similar parts; the terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent.
The present invention is not limited to the above-mentioned embodiments, and according to the above-mentioned contents, according to the common technical knowledge and conventional means in the field, without departing from the basic technical idea of the present invention, the present invention can also make other equivalent modifications, replacements or changes in various forms, all falling within the protection scope of the present invention.
Claims (4)
1. A flat plate anchor device with a semicircular soil-holding plate is characterized by comprising a flat plate anchor and paired soil-holding plates with semicircular sections, wherein the flat plate anchor consists of an anchor plate and an anchor shank, the end part of the anchor shank is provided with an anchor eye, and two ends of the upper part of the anchor plate are respectively provided with a mooring ring; mooring rings are arranged in the middle of the outer wall of each semicircular soil-holding plate and on the outer sides of the two ends of the outer wall of each semicircular soil-holding plate, and the mooring rings in the middle of the outer walls of the two semicircular soil-holding plates are respectively connected with one mooring ring on the upper part of the anchor plate through anchor chains;
the two semicircular soil-loading plates are assembled into a cylindrical shape relatively during working and sleeved on the outer wall of the suction type barrel-shaped foundation, an anchor plate notch and an anchor eye notch which are matched with the flat plate anchor are arranged at the bottom of the barrel-shaped foundation, the flat plate anchor is clamped into the corresponding notch at the bottom of the barrel-shaped foundation for fixing, the flat plate anchor eye leaks out of the barrel-shaped foundation and is provided with an anchor chain, the semicircular soil-loading plates and the flat plate anchor are penetrated to the designed depth of a seabed for removing by means of the barrel-shaped foundation, pulling force is applied to the anchor chain after the semi-circular soil-loading plates are removed to enable the anchor plates to rotate, and the paired.
2. The plate anchor device with semicircular earthmoving plate according to claim 1, characterized in that: the semicircular soil-loading plate is processed into a semicircular cylinder shape by adopting an arc-shaped steel plate with the radian equal to 180 degrees, and the arc diameter of the concave surface is larger than the outer diameter of the barrel-shaped foundation.
3. The plate anchor device with semicircular earthmoving plate according to claim 1, characterized in that: the distance between two mooring rings on the anchor plate of the flat anchor is larger than the outer diameter of the barrel-shaped foundation.
4. The plate anchor device with semicircular earthmoving plate according to claim 1, characterized in that: the two semicircular soil holding plates are oppositely arranged, and the mooring rings at the corresponding positions of the two semicircular soil holding plates are bound and assembled into a cylinder shape through a detachable rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921934166.5U CN211468697U (en) | 2019-11-11 | 2019-11-11 | Flat plate anchor device with semicircular soil-loading plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921934166.5U CN211468697U (en) | 2019-11-11 | 2019-11-11 | Flat plate anchor device with semicircular soil-loading plate |
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| Publication Number | Publication Date |
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| CN211468697U true CN211468697U (en) | 2020-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921934166.5U Active CN211468697U (en) | 2019-11-11 | 2019-11-11 | Flat plate anchor device with semicircular soil-loading plate |
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| CN (1) | CN211468697U (en) |
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- 2019-11-11 CN CN201921934166.5U patent/CN211468697U/en active Active
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