CN108360554B - Multi-barrel mutually embedded combined anchoring foundation during construction - Google Patents
Multi-barrel mutually embedded combined anchoring foundation during construction Download PDFInfo
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- CN108360554B CN108360554B CN201810303893.5A CN201810303893A CN108360554B CN 108360554 B CN108360554 B CN 108360554B CN 201810303893 A CN201810303893 A CN 201810303893A CN 108360554 B CN108360554 B CN 108360554B
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- 238000004873 anchoring Methods 0.000 title claims abstract description 69
- 238000010276 construction Methods 0.000 title claims abstract description 49
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 230000035515 penetration Effects 0.000 claims description 9
- 239000002689 soil Substances 0.000 abstract description 21
- 230000009471 action Effects 0.000 abstract description 5
- 230000036544 posture Effects 0.000 abstract description 5
- 230000000149 penetrating effect Effects 0.000 description 12
- 238000009933 burial Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/50—Anchored foundations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/24—Anchors
- B63B21/26—Anchors securing to bed
- B63B21/27—Anchors securing to bed by suction
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/52—Submerged foundations, i.e. submerged in open water
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- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a multi-barrel mutually embedded combined anchoring foundation during construction, which comprises at least two barrels; the outer side of the round barrel is provided with a mooring hole, and the bottom of the round barrel is provided with a clamping groove protruding inwards; bayonets are required to be arranged on the non-innermost round barrel 4; during construction, the bottoms of the inner drums are pressed on the clamping grooves of adjacent outer drums according to the diameter relation of the drums, mooring holes of the drums are sequentially connected through steel ropes to form a serial shape, an anchor chain is moored on the mooring holes of the innermost drums, the bottoms of barrel-shaped foundations are embedded into the innermost drums and pressed on the clamping grooves of the innermost drums, the anchor foundation is penetrated to the designed depth of the seabed by means of the barrel-shaped foundations, the barrel-shaped foundations are removed, and when the tensile force applied to the anchor chain reaches a design value, construction is finished. The barrels under the action of the tension of the anchor chain can move freely, the postures of the barrels are different, and the friction force between the barrels and the soil body of the seabed can be increased, so that the pulling-resistant bearing capacity of the anchoring foundation is improved.
Description
Technical Field
The invention relates to the technical field of anchoring of ocean floating platforms or deepwater net cages, in particular to a multi-barrel mutually embedded combined anchoring foundation during construction.
Background
Aiming at the special geological condition of the seabed, a special foundation form of an ocean platform, namely a barrel-shaped foundation (also called a suction pile) appears since 1990, and most of barrel-shaped foundations are inverted large-diameter steel barrels with open bottoms and closed tops. When in installation, firstly, part of the barrel body is inserted into the soil by means of the self weight of the barrel body in a preset sea area to form a closed space, and then gas or liquid between the barrel body and the soil body is pumped out, so that the pressure difference is formed in the barrel body, and the barrel body is gradually pressed into the seabed to a preset depth to finish the installation.
Later, engineering personnel developed the bucket foundation to a construction tool as a marine anchoring foundation based on the feature that the bucket foundation is more convenient to penetrate the seabed at sea. Some countries have strong ocean engineering construction enterprises (such as SPT Offshore corporation of the Netherlands) which can utilize barrel-shaped foundations to develop various ocean engineering construction capacities, and the automation and intelligent degree is very high. Although China is a large ocean country and has a sea area with a larger area, the country has a certain gap from abroad in the construction aspect of developing ocean engineering by utilizing barrel-shaped foundations.
At present, anchoring foundations that can be constructed with barrel foundations mainly include: a buried suction anchor (embedded suction anchor) and a suction penetration plate anchor (Suction embedded plate anchor).
The anti-pulling bearing capacity of the embedded suction anchor is mainly generated by friction between the periphery of the drum and the soil body and the dead weight of part of the seabed soil body, and is particularly related to the position of a mooring point, the type of the seabed soil body, the penetration depth and the like. Generally, the surface area of the embedded suction anchor is limited, so that the friction force between the embedded suction anchor and soil is limited; on the other hand, the projection area of the embedded suction anchor along the vertical direction of the anchor chain is very limited, so that the area of the seabed soil body which can be taken up along the direction of the anchor chain is smaller, and the contribution of the dead weight of the seabed soil body to the anchoring force is smaller. If the pull-out bearing capacity of the embedded suction anchor is improved by increasing the length and the diameter of the embedded suction anchor, the construction difficulty is greatly increased, which is also not preferable.
The plane shape of the suction penetrating type flat anchor is rectangular, the suction penetrating type flat anchor is vertically fixed in a barrel-shaped foundation during installation, and the barrel-shaped foundation penetrates to a preset depth under the action of dead weight and negative pressure caused by pumping water. The barrel-shaped foundation is pulled out after being separated from the flat anchor, and the flat anchor left in the clay seabed rotates under the traction of the anchor chain until the plate surface is approximately perpendicular to the anchor chain or the applied tensile force reaches a design value. During the rotation of the anchor plate by tensioning the anchor chain, the anchor plate moves upward and a loss of burial depth occurs. 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 strength generally increases in proportion to depth, loss of burial depth during rotation adjustment can lead to a reduction in load bearing capacity of up to 20%. It can be seen that flat anchors also have certain limitations.
Therefore, the suction penetrating type anchoring foundation structure based on the barrel-shaped foundation is creatively designed, so that the suction penetrating type anchoring foundation structure has larger pulling-resistant bearing capacity and is convenient to construct.
The invention aims to overcome the defects of the prior art, and provides a multi-barrel mutually embedded combined anchoring foundation during construction, which is formed by mutually embedded and stacked multiple barrels, wherein the barrels are connected together based on mooring holes after being unfolded in a seabed, the postures of the barrels are different, and the friction force between the barrels and a seabed soil body can be increased to the greatest extent, so that the integral pulling-resistant bearing capacity is improved.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
a multi-barrel mutually embedded combined anchoring foundation during construction is characterized in that: the mooring rope comprises a plurality of hollow drums, wherein the drums are coaxially nested and combined from inside to outside in sequence, in two adjacent drums at the inner layer, the upper end of the drum at the inner layer extends out of the corresponding end of the adjacent drum at the outer layer, the inner wall of the lower end of the drum at the outer layer is provided with a clamping groove protruding inwards, the lower end of the drum at the inner layer is pressed on the clamping groove in the drum at the outer layer, one sides of the drums in the same direction are respectively connected with a hole seat stretching along the radial direction, mooring holes of vertical through holes are arranged in the hole seats, except for the drum at the innermost layer, the side surface of each drum is respectively provided with a bayonet, the upper end of each bayonet extends to the edge of the corresponding end of the drum at the axial upper end of the drum, when the drums are nested and combined, the hole seats connected with the drum at the inner layer are positioned in the bayonet of the drum at the outer layer, the two adjacent drums at the inner layer, the hole seats are exposed out of the mooring holes along the radial direction from the bayonet, and mooring holes are connected with mooring rope chains in the mooring rope layers.
The multi-barrel mutually embedded combined anchoring foundation during construction is characterized in that: in the adjacent two drums at the inner side and the outer side, the inner diameter of the drum at the outer layer is larger than or equal to the outer diameter of the drum at the inner layer, and the clamping groove in the drum opening at the lower end of the drum shaft at the outer layer can cover the drum at the adjacent inner layer.
The multi-barrel mutually embedded combined anchoring foundation during construction is characterized in that: the outer wall of the outermost barrel is provided with at least two wing plates which are uniformly distributed and extend along the radial direction of the barrel respectively.
The multi-barrel mutually embedded combined anchoring foundation during construction is characterized in that: the two adjacent drums of the inner layer and the outer layer are coaxially embedded with a pair of semicircular drums, the radian of the drum wall of each semicircular drum is 70-90 degrees, the outer cambered surface on each semicircular drum is connected with a mooring hole through a hole seat, a bayonet is arranged above the axial direction of one semicircular drum, the upper end of the bayonet extends to the upper edge of the axial direction of the located semicircular drum, the inner cambered surface at the lower axial end of each semicircular drum is provided with an inwards protruding clamping groove, the drum openings at the lower axial ends of the two adjacent inner layers of the semicircular drums are pressed on the clamping grooves of the two semicircular drums, the lower axial ends of the two semicircular drums are pressed on the clamping grooves in the drum openings at the lower axial ends of the adjacent outer layers of the semicircular drums, each hole seat of the two adjacent outer layers of the semicircular drums is provided with a bayonet, the hole seats of the two semicircular drums are embedded into the bayonet of the drum of the adjacent outer layers, the semicircular drums with the bayonets are used for the Kongka of the drums of the adjacent inner layers, and the hole seats penetrate out of the bayonets in the radial direction to expose the mooring holes, and the steel ropes are also connected with the mooring holes of the two semicircular drums.
The utility model provides a construction penetration equipment of multi-barrel each other inlays combination formula ground foundation during construction which characterized in that: the multi-barrel mutual embedding combined anchoring foundation comprises a barrel-shaped foundation, wherein the barrel-shaped foundation is coaxially arranged in an innermost barrel, an inward protruding clamping groove is formed in a barrel opening at the lower end of the axial direction of the innermost barrel, the axial lower end of the barrel-shaped foundation is pressed on the clamping groove in the innermost barrel, the anchoring foundation is penetrated to the designed depth of the seabed by means of the barrel-shaped foundation, then the barrel-shaped foundation is removed, each barrel is enabled to sequentially and freely move by applying tension to an anchor chain until the applied tension reaches a design value, and the construction penetration of the multi-barrel mutual embedding combined anchoring foundation during construction is completed.
The construction penetrating equipment of the multi-barrel mutually embedded combined anchoring foundation during construction is characterized in that: the inner diameter of the innermost barrel is slightly larger than the outer diameter of the barrel-shaped foundation, and the clamping groove protruding inwards at the bottom of the innermost barrel can cover the barrel wall of the barrel-shaped foundation.
Compared with the prior art, the invention has the advantages that:
1. the anchoring foundation is formed by mutually connecting a plurality of drums and semicircular drums in series, all the components are mutually embedded, stacked and clung together in construction, the area of the anchoring foundation along the sinking and penetrating direction is very small, sinking and penetrating construction is convenient by utilizing the barrel-shaped foundation, and the resistance is relatively small.
2. When the anchoring foundation is constructed, all the components are mutually embedded, stacked and tightly attached together, the whole external leakage surface area is small, the sinking construction is convenient, the surface area of each component after the expansion is large, the friction with soil mass is increased, the area of the anchoring foundation after the expansion is usually more than several times of the stacking area during the construction, and an innovative thought is provided for the design of the anchoring foundation.
3. According to the anchoring foundation, each barrel can move freely under the action of the tension of the anchor chain, the postures of the barrels or the semicircular barrels are different, the friction force with a seabed soil body can be increased to the greatest extent, and accordingly the overall pulling-resistant bearing capacity of the anchoring foundation is improved.
4. The anchoring foundation is simple in structure, convenient to manufacture and low in cost, and drums or semicircular drums with different sizes and numbers can be arranged according to different requirements, so that the anchoring requirements of ocean engineering under different conditions are met.
Drawings
FIG. 1 is a schematic three-dimensional structure of an innermost barrel according to the present invention.
FIG. 2 is a schematic representation of the three-dimensional structure of a non-innermost barrel according to the present invention.
FIG. 3 is a schematic view showing the structure of the barrel-shaped foundation according to the embodiment 1 of the present invention sinking by its own weight to contact the seabed.
Fig. 4 is a detailed view of the connection between the barrel-shaped foundation and the embodiment 1 of the present invention.
Fig. 5 is a detail of section I-I of fig. 4.
Fig. 6 is a schematic view of a barrel foundation according to embodiment 1 of the present invention penetrating into the seabed under suction.
Fig. 7 is a schematic view of a modular mooring foundation position with the barrel foundation removed.
Fig. 8 shows one of the possible operating states of embodiment 1 of the present invention.
Fig. 9 is a three-dimensional structure schematic diagram of a semicircular barrel according to the present invention.
FIG. 10 is a schematic three-dimensional view of a non-innermost barrel matching a semi-circular barrel according to the present invention.
FIG. 11 is a schematic diagram of the intermeshed structure of the semi-circular barrel and the non-innermost barrel of the present invention.
Fig. 12 is a schematic view of a combined anchoring foundation mutual embedding structure according to embodiment 2 of the present invention.
Fig. 13 shows one of the possible operating states of embodiment 2 of the present invention.
FIG. 14 is a schematic view of the three-dimensional structure of the outermost barrel with wings according to the present invention.
Fig. 15 is a schematic view of a combined anchoring foundation mutual embedding structure according to embodiment 3 of the present invention.
Fig. 16 shows one of the possible operating states of embodiment 3 of the present invention.
Reference numerals illustrate: 1. an innermost barrel; 2. a clamping groove; 3. mooring holes; 4. a non-innermost barrel; 5. a bayonet; 6. an anchor chain; 7. a barrel foundation; 8. a wire rope; 9. a semicircular barrel; 10. a wing plate; A. sea level; B. sea bed surface.
Detailed Description
As shown in fig. 1-16, a multi-barrel mutually embedded combined anchoring foundation for construction comprises at least two barrels; the round barrel is in a hollow cylinder shape, a mooring hole 3 is arranged at the outer side of the round barrel, and a clamping groove 2 protruding inwards is arranged at the bottom of the round barrel; the drums are divided into an innermost drum 1 and a non-innermost drum 4 according to the position relation, wherein the non-innermost drum 4 is required to be provided with bayonets 5, so that mooring holes 3 embedded in all drums inside can extend out of the drum wall; during construction, the bottoms of the inner drums are pressed on the clamping grooves 2 of the adjacent outer drums according to the diameter relation of the drums, the mooring holes 3 on the inner drums extend out based on the clamping openings 5 on the outer drums, the mooring holes 3 of the drums are sequentially connected from inside to outside through steel ropes 8 to enable the drums to form a serial shape, one end of an anchor chain 6 is moored on the mooring holes 3 of the innermost drum 1, the bottoms of the barrel-shaped foundations 7 are embedded into the innermost drum 1 and pressed on the clamping grooves 2 of the innermost drum 1, the anchoring foundations are penetrated to the designed depth of the seabed by means of the barrel-shaped foundations 7, then the barrel-shaped foundations 7 are removed, the drums are sequentially and freely moved by applying tension to the anchor chain 6 until the applied tension reaches a designed value, and construction is finished, so that the multi-drum mutually-embedded combined anchoring foundation during construction is formed.
The above-mentioned "bottom" azimuth term is determined based on the pose of the proposed anchoring foundation at the time of construction. The anchoring foundation is fixed and connected to the bottom of the barrel-shaped foundation during construction, and is in a plumb state and gradually penetrates into the seabed, as shown in fig. 3 and 4. In this position, the "bottom" is the lowest along the plumb line. The azimuth words mentioned elsewhere in the specification are also estimated from this gesture. The above orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description and to simplify the description, rather than to indicate or imply that the apparatus or components referred to must have a specific orientation, configuration and operation, and therefore should not be construed as limiting the present invention.
The round barrel is in a hollow cylinder shape, a mooring hole 3 is arranged at the outer side of the round barrel, and a clamping groove 2 protruding inwards is arranged at the bottom of the round barrel; the inner diameter of the innermost barrel 1 is slightly larger than the outer diameter of the barrel-shaped foundation 7, and the clamping groove 2 protruding inwards at the bottom of the innermost barrel 1 can be used for covering the barrel wall of the barrel-shaped foundation 7, as shown in fig. 1, 3-5. Preferably, the mooring holes 3 of the innermost barrel 1 should be provided at the outer upper part so that the depth of the bayonet 5 on its adjacent outer barrel can be reduced.
The non-innermost drums 4 are provided with bayonets 5 so that the mooring holes 3 of all drums embedded therein can extend outside the walls thereof, as shown in fig. 2. If a plurality of mooring holes 3 are accumulated on the inner drum or the semicircular drum, a plurality of bayonets 5 are correspondingly arranged on the adjacent outer drum, as shown in fig. 10.
In each barrel of the anchoring foundation, the inner diameter of the outer barrel is slightly larger than the outer diameter of the adjacent inner barrel, and the clamping groove 2 protruding inwards from the bottom of the outer barrel can cover the barrel wall of the adjacent inner barrel, as shown in fig. 4 and 5. It can be seen that when the drums are mutually embedded and stacked, the connection and load transmission between the adjacent drums are realized by the clamping grooves 2. Therefore, the thickness and strength of the clamping groove 2 of each barrel should be large enough to meet the stress transmission requirement in penetration construction.
Different numbers and shapes of drums may be used as desired to form different embodiments. Several embodiments are described below.
Example 1: as shown in fig. 1-5, the anchoring foundation adopts three drums in total, the innermost drum 1 is shown in fig. 1, the non-innermost drum 4 is shown in fig. 2, and the mutual embedding and stacking of the drums are shown in fig. 3-5.
As can be seen from fig. 4 and 5, when three drums are mutually embedded and stacked, the overall surface area is about the surface area of one drum, and the sum of the surface areas of the three drums after expansion is about three times the stacking area during construction. The smaller the surface area of the whole anchoring foundation is, the better the whole anchoring foundation is, so that the sinking and penetrating construction is facilitated; the larger the surface area of each barrel is, the better the surface area is, so that friction with soil mass is increased, and the pulling-resistant bearing capacity is improved. The two points can be combined by the provided anchoring foundation, and an innovative thought is obviously provided for the design of the anchoring foundation.
The construction method of the multi-barrel mutually embedded combined anchoring foundation during construction is introduced as follows:
1. connecting an anchoring foundation;
the method comprises the steps of mutually embedding and stacking according to the diameter relation of the drums, pressing the bottom of an inner drum on the clamping groove 2 of the adjacent outer drum, enabling the mooring holes 3 on the inner drum to extend out based on the bayonets 5 on the outer drum, sequentially connecting the mooring holes 3 of the drums from inside to outside by using steel ropes 8 to enable the drums to form a serial shape, mooring one end of an anchor chain 6 on the mooring hole 3 of the innermost drum 1, embedding the bottom of a barrel-shaped foundation 7 into the inner part of the innermost drum 1 and pressing the bottom of the barrel-shaped foundation on the clamping groove 2 of the innermost drum 1, and is shown in fig. 4 and 5.
Auxiliary measures should be taken to fix the drums and the barrel foundation 7 to each other simply so that they will not loosen during construction. For example, engineering glue with lower strength can be adopted for simple adhesion, and the engineering glue between the barrels can be destroyed under the action of the tensile force of the anchor chain to separate the barrels from each other.
Of course, some additional components are required to achieve the subsequent releasable securement and connection between the anchoring foundation and the barrel foundation, which are too complex to be represented in the drawings, but the prior art can do so without further elaboration here.
The barrel-shaped foundation is also called a suction pile (suction pile), and is a reverse-buckling large-diameter steel barrel with an opening bottom end and a closed top end.
2. The barrel-shaped foundation sinks by self weight to contact the seabed;
the barrel foundation 7 is lifted into the sea water in a plumb state, and the barrel foundation 7 is gradually lowered to be in contact with the seabed under the action of self weight and pressed into the seabed to a certain depth, as shown in fig. 3.
3. Extracting negative pressure to enable the barrel-shaped foundation to penetrate into the seabed to the designed depth;
the top of the barrel-shaped foundation 7 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 an internal and external pressure difference, so that the barrel-shaped foundation 7 is penetrated into a seabed soil body, and finally the anchoring foundation at the bottom of the barrel-shaped foundation is pressed into the seabed soil body to a designed depth, as shown in fig. 6.
The anchoring foundation is formed by mutually connecting a plurality of drums and semicircular drums in series, all the components are mutually embedded, stacked and clung together in construction, the area of the anchoring foundation along the sinking and penetrating direction is very small, sinking and penetrating construction is convenient by utilizing the barrel-shaped foundation, and the resistance is relatively small.
4. Removing the barrel foundation;
after the anchoring foundation is pressed into the seabed to the designed depth, the connection between the anchoring foundation and the barrel-shaped foundation 7 is loosened, the anchoring foundation is separated from the barrel-shaped foundation 7, the barrel-shaped foundation 7 is inflated through the connecting pipe, the barrel-shaped foundation 7 is gradually floated, and finally the barrel-shaped foundation is lifted and removed. After removal of the bucket foundation, only the anchored foundation remains in the seabed soil mass, as shown in fig. 7.
5. And tensioning the anchor chain to enable the anchoring foundation to meet the design requirement.
The barrels are disengaged from each other by applying tension to the chain 6 and allowed to move freely until the applied tension reaches a design value, whereby a suction penetrating the assembled anchoring foundation is formed, as shown in fig. 8.
The tension of the anchor chain 6 is gradually transferred from the uppermost barrel to the lower barrel in sequence, i.e. the tension of the anchor chain 6 minus the resistance of the uppermost barrel will be transferred to the second barrel, the tension of the anchor chain 6 minus the resistance of the uppermost and second barrels will be transferred to the third barrel, and so on. Therefore, the uppermost barrel receives the largest load, and the pulling-resistant bearing capacity of the uppermost barrel is consumed and used up at first, so that the moving amplitude of the uppermost barrel is largest, and the load and the moving amplitude of the uppermost barrel are gradually reduced from top to bottom. Therefore, before the anchoring foundation is not failed, the displacement postures of the drums are generally different, and the pulling force direction of the anchor chain is also changed at any time. Thus, in practice the pose of each barrel is difficult to predict, and fig. 8 only shows one of its possible operating states. The larger the position and posture phase difference of each barrel is, the more complex the contact relation between the barrel and the soil body of the seabed is, the friction and resistance between the barrel and the soil body are larger, and the friction force between the barrel and the soil body of the seabed can be increased to the greatest extent, so that the overall pulling-resistant bearing capacity of the anchoring foundation is improved.
Example 2: as shown in fig. 9 to 12, the anchoring foundation adopts two drums and a pair of semicircular drums 9, the innermost drum 1 is shown in fig. 1, the semicircular drum 9 is shown in fig. 9, the outermost drum is shown in fig. 10, and the mutual embedding and stacking of the components are shown in fig. 11 and 12.
Semi-circular barrels 9 which are distributed in pairs are embedded between the barrels of the anchoring foundation, the radian of the barrel walls of the semi-circular barrels 9 is 70-90 degrees, mooring holes 3 and bayonets 5 are arranged on the semi-circular barrels 9, and clamping grooves 2 which protrude inwards are formed in the bottoms of the semi-circular barrels 9.
The mooring holes 3 of the innermost barrel 1 and the first semicircular barrel 9 are connected by the steel cable 8, the mooring holes 3 of the first semicircular barrel 9 and the second semicircular barrel 9 are connected by the steel cable 8, the mooring holes 3 of the second semicircular barrel 9 and the outermost barrel are connected by the steel cable 8, and one end of the anchor chain 6 is moored on the mooring holes 3 of the innermost barrel 1, so that the serial connection shape of each component is formed. The construction method was the same as in example 1.
Fig. 13 shows one of its possible operating states. The pair of semicircular barrels 9 is adopted, the sinking construction is not influenced, the semicircular barrels 9 have a more complex movement relationship in the series-connection anchoring foundation, and the friction force between each component and the soil body is larger, so that the overall pulling-resistant bearing capacity of the anchoring foundation is improved.
Example 3: as shown in fig. 14 and 15, four wing plates 10 are symmetrically provided on the outer wall of the outermost barrel, and the rest is the same as in embodiment 1. The wing plate 10 is a rectangular steel plate and is welded on the outer side of the barrel. The wing plates 10 can further increase the friction force between the anchoring foundation and the soil body, so that the overall pulling-resistant bearing capacity of the anchoring foundation is improved. The wing plates 10 can be provided only on the outer wall of the outermost barrel for the reason that the barrels are mutually embedded. Fig. 16 shows one of its possible operating states.
The anchoring foundation is simple in structure, convenient to manufacture and low in cost, and drums or semicircular drums with different sizes and numbers can be arranged according to different requirements, so that the anchoring requirements of ocean engineering under different conditions are met.
The drawings only show the partial shape and partial connection mode of the round barrel and the semicircular barrel, and the shape and the number of the round barrels, the shape and the number of the wing plates and the connection mode of the wing plates can be changed according to the proposed thought, or other auxiliary components are additionally arranged to form other relevant types of mutually embedded combined anchoring foundations, which belong to equivalent modification and change of the technology and are not repeated herein.
The drawings are for illustrative purposes only and are not to be construed as limiting the present patent; for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be appreciated 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 components; the terms describing the positional relationship in the drawings are merely illustrative and should not be construed as limiting the present patent.
The present invention is not limited to the above-described embodiments, and according to the above-described matters, the present invention may be modified, replaced or altered in various equivalent ways without departing from the basic technical spirit of the present invention, all of which fall within the scope of the present invention, according to the general technical knowledge and conventional means in the art.
Claims (3)
1. A multi-barrel mutually embedded combined anchoring foundation during construction is characterized in that: the mooring rope comprises a plurality of hollow drums, wherein the drums are coaxially nested and combined in sequence from inside to outside, in two adjacent drums at the inner layer, the upper end of the drum at the inner layer extends out of the corresponding end of the adjacent drum at the outer layer, the inner wall of the lower end of the drum at the outer layer is provided with a clamping groove protruding inwards, the lower end of the drum at the inner layer is pressed on the clamping groove in the adjacent drum at the outer layer, one side of the drums in the same direction is respectively connected with a hole seat extending along the radial direction, mooring holes of the vertical through hole seats are arranged in the hole seats, the side surface of each drum except the drum at the innermost layer is respectively provided with a bayonet, the upper end of each bayonet extends to the edge of the corresponding end of the drum at the axial upper end of the drum, when the drums are nested and combined, the hole seats connected with the drums at the inner layer are positioned in the bayonets of the drums at the outer layer, the hole seats are penetrated in the radial direction from the bayonets of the drums at the outer layer to enable the mooring holes to be exposed out of the mooring holes, and mooring rope structures are formed in the mooring rope layers through the mooring rope layers;
among the two adjacent drums at the inner side and the outer side, the inner diameter of the drum at the outer layer is larger than or equal to the outer diameter of the drum at the inner layer, and the clamping groove in the drum opening at the lower end of the drum at the outer layer in the axial direction can cover the drum at the adjacent inner layer;
the outer wall of the outermost barrel is provided with at least two wing plates which are uniformly distributed and extend along the radial direction of the barrel respectively;
the two adjacent drums of the inner layer and the outer layer are coaxially embedded with a pair of semicircular drums, the radian of the drum wall of each semicircular drum is 70-90 degrees, the outer cambered surface on each semicircular drum is connected with a mooring hole through a hole seat, a bayonet is arranged above the axial direction of one semicircular drum, the upper end of the bayonet extends to the upper edge of the axial direction of the located semicircular drum, the inner cambered surface at the lower axial end of each semicircular drum is provided with an inwards protruding clamping groove, the drum openings at the lower axial ends of the two adjacent inner layers of the semicircular drums are pressed on the clamping grooves of the two semicircular drums, the lower axial ends of the two semicircular drums are pressed on the clamping grooves in the drum openings at the lower axial ends of the adjacent outer layers of the semicircular drums, each hole seat of the two adjacent outer layers of the semicircular drums is provided with a bayonet, the hole seats of the two semicircular drums are embedded into the bayonet of the drum of the adjacent outer layers, the semicircular drums with the bayonets are used for the Kongka of the drums of the adjacent inner layers, and the hole seats penetrate out of the bayonets in the radial direction to expose the mooring holes, and the steel ropes are also connected with the mooring holes of the two semicircular drums.
2. A construction penetration apparatus for a multi-bucket inter-embedded modular mooring foundation as defined in claim 1, wherein: the multi-barrel mutual embedding combined anchoring foundation comprises a barrel-shaped foundation, wherein the barrel-shaped foundation is coaxially arranged in an innermost barrel, an inward protruding clamping groove is formed in a barrel opening at the lower end of the axial direction of the innermost barrel, the axial lower end of the barrel-shaped foundation is pressed on the clamping groove in the innermost barrel, the anchoring foundation is penetrated to the designed depth of the seabed by means of the barrel-shaped foundation, then the barrel-shaped foundation is removed, each barrel is enabled to sequentially and freely move by applying tension to an anchor chain until the applied tension reaches a design value, and the construction penetration of the multi-barrel mutual embedding combined anchoring foundation during construction is completed.
3. The construction penetration equipment of the multi-barrel mutually embedded combined anchoring foundation during construction according to claim 2, wherein the construction penetration equipment comprises the following components: the inner diameter of the innermost barrel is slightly larger than the outer diameter of the barrel-shaped foundation, and the clamping groove protruding inwards at the bottom of the innermost barrel can cover the barrel wall of the barrel-shaped foundation.
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| CN110344424B (en) * | 2019-07-15 | 2020-05-22 | 浙江大学 | Suction bucket type foundation with opened side plates and capable of bearing higher pull-up load |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101761090A (en) * | 2009-12-22 | 2010-06-30 | 浙江大学 | Space truss multi-barrel base of offshore wind power unit |
| CN202039382U (en) * | 2011-03-29 | 2011-11-16 | 中国水电顾问集团华东勘测设计研究院 | Ribbing seabed suction anchor |
| CN104929144A (en) * | 2015-05-04 | 2015-09-23 | 浙江大学 | Deepwater suction type barrel-shaped foundation intermittent penetration equipment and installation method |
| CN204715198U (en) * | 2015-06-18 | 2015-10-21 | 山东科技大学 | A kind of novel suction type bridge deepwater foundation |
| CN105019471A (en) * | 2015-08-13 | 2015-11-04 | 山东科技大学 | Inclined type barrel-shaped foundation mooring system and construction method thereof |
| CN205205851U (en) * | 2015-08-13 | 2016-05-04 | 山东科技大学 | Tilting bucket foundation mooring system |
| CN106930313A (en) * | 2017-04-19 | 2017-07-07 | 合肥学院 | A kind of coastal waters wind energy project stake bucket combination foundation and its construction method |
| CN206815370U (en) * | 2017-03-08 | 2017-12-29 | 山东科技大学 | Underwater bridge pier suction basis |
| CN206971251U (en) * | 2017-04-19 | 2018-02-06 | 合肥学院 | A kind of coastal waters wind energy project stake bucket combination foundation |
| CN208266908U (en) * | 2018-04-04 | 2018-12-21 | 合肥学院 | More barrels of mutual embedding combined type anchoring bases when a kind of construction |
-
2018
- 2018-04-04 CN CN201810303893.5A patent/CN108360554B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101761090A (en) * | 2009-12-22 | 2010-06-30 | 浙江大学 | Space truss multi-barrel base of offshore wind power unit |
| CN202039382U (en) * | 2011-03-29 | 2011-11-16 | 中国水电顾问集团华东勘测设计研究院 | Ribbing seabed suction anchor |
| CN104929144A (en) * | 2015-05-04 | 2015-09-23 | 浙江大学 | Deepwater suction type barrel-shaped foundation intermittent penetration equipment and installation method |
| CN204715198U (en) * | 2015-06-18 | 2015-10-21 | 山东科技大学 | A kind of novel suction type bridge deepwater foundation |
| CN105019471A (en) * | 2015-08-13 | 2015-11-04 | 山东科技大学 | Inclined type barrel-shaped foundation mooring system and construction method thereof |
| CN205205851U (en) * | 2015-08-13 | 2016-05-04 | 山东科技大学 | Tilting bucket foundation mooring system |
| CN206815370U (en) * | 2017-03-08 | 2017-12-29 | 山东科技大学 | Underwater bridge pier suction basis |
| CN106930313A (en) * | 2017-04-19 | 2017-07-07 | 合肥学院 | A kind of coastal waters wind energy project stake bucket combination foundation and its construction method |
| CN206971251U (en) * | 2017-04-19 | 2018-02-06 | 合肥学院 | A kind of coastal waters wind energy project stake bucket combination foundation |
| CN208266908U (en) * | 2018-04-04 | 2018-12-21 | 合肥学院 | More barrels of mutual embedding combined type anchoring bases when a kind of construction |
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