KR101777199B1 - suction pile for fixing marine structure - Google Patents

suction pile for fixing marine structure Download PDF

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Publication number
KR101777199B1
KR101777199B1 KR1020160028426A KR20160028426A KR101777199B1 KR 101777199 B1 KR101777199 B1 KR 101777199B1 KR 1020160028426 A KR1020160028426 A KR 1020160028426A KR 20160028426 A KR20160028426 A KR 20160028426A KR 101777199 B1 KR101777199 B1 KR 101777199B1
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KR
South Korea
Prior art keywords
main body
suction
seabed
spaced apart
shear
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KR1020160028426A
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Korean (ko)
Inventor
경갑수
이성진
Original Assignee
한국해양대학교 산학협력단
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Priority to KR1020160028426A priority Critical patent/KR101777199B1/en
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    • 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
    • E02D27/525—Submerged foundations, i.e. submerged in open water using elements penetrating the underwater ground
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B17/02—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
    • 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
    • E02D27/42—Foundations for poles, masts or chimneys
    • E02D27/425—Foundations for poles, masts or chimneys specially adapted for wind motors masts
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B2017/0091—Offshore structures for wind turbines
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2600/00—Miscellaneous
    • E02D2600/30—Miscellaneous comprising anchoring details

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Mechanical Engineering (AREA)
  • Wind Motors (AREA)

Abstract

The present invention relates to a suction file for fixing an offshore structure, which is connected to a lower end of an offshore structure installed in an offshore environment, A main body part having a sound pressure space formed therein and having a discharge hole formed in an upper surface of the sound pressure space so as to be connected to a suction unit for discharging fluid in a vertical direction; And a plurality of protrusions formed radially outwardly from the outer surface of the side surface of the main body and spaced apart from each other in the vertical direction and the circumferential direction, Each of which is spaced apart in the circumferential direction so as to be filled in accordance with a subsequent movement, are arranged in mutually different height ranges, each of which is vertically spaced apart from the axial direction corresponding to the penetration direction of the main body, Wherein each of the shear projections has an inclined surface inclined downward to one side of the circumference so as to be slid when the shear bottom penetrates into the seabed ground and an upper surface of the shear projections is engaged with the seabed ground. To provide a suction file to fix an offshore structure .

Description

A suction pile for fixing an offshore structure (suction pile for fixing marine structure)

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a suction file for fixing an offshore structure, and more particularly, to a suction file for fixing an offshore structure having an improved bearing capacity upon penetration into a seabed.

Generally, a wind turbine generator is a device that connects a rotary shaft of a generator to a blade, and generates power by using the rotational force of the blade by the wind. These wind turbines are increasing in volume due to the simplicity of construction and installation, ease of operation and management, and large-scale complexes are being built on the sea to facilitate the supply and demand of wind resources and to solve the place restrictions.

Here, the offshore wind power generator is installed on an upper part of a foundation, which is a support structure, and the foundation part is a concrete caisson type, a mono-pile type, a jacket type, (Floating type). In particular, the base of the jacket type can be installed at a large depth of water, but it has high installation economics and is used for the construction of a large offshore wind power generation complex.

1 is an exemplary view showing a base portion of a jacket type applied to a conventional offshore wind turbine generator.

1, the jacket 1 includes a leg 3 connected to a pile 5 fixed to a seabed so as to protrude above the sea surface, a bracing 4 supporting between the legs 3, .

At this time, an offshore wind power generator can be installed through the upper deck 2 provided at the upper end of the leg 3. The pile 5 discharges the fluid such as water or air inside, Can be intruded into the ground of the seabed.

In detail, the pile 5 is formed of a material such as steel or concrete having an upper end closed and a lower end opened, and the lower end is penetrated to a certain depth by its own weight when it is seated on the seabed ground.

Here, the inside of the pile 5 is hollow, and a hollow fluid is discharged to the outside of the pile 5 through a sound pressure device (not shown) provided on the pile 5, Lt; / RTI >

At this time, the pressure in the radially inward direction applied along the outer circumferential surface of the pile 5 due to the pressure difference between the inside and the outside of the pile 5 is balanced and canceled, and the pressure applied to the top surface portion of the pile 5 The lower end of the pile 5 can be deeply inserted into the seabed ground by the downward pressure.

Here, the bearing force of the buried file 5 is determined by the surface area of the pile 5 and the soil quality of the submarine substrate.

On the other hand, the jacket 1 is subjected to lateral load by wind, wave, earthquake, etc., and the lateral load applied to the jacket 1 applies the pulling force in the upward direction to the pile 5 inserted in the seabed ground.

However, since the conventional pile 5 is provided so as to have a cylindrical outer circumferential surface having the same upper and lower diameters so as to be easily penetrated by the generation of negative pressure, the pile 5 is separated from the seabed ground due to the upward pulling force continuously generated by the natural environment A case occurred.

[0006] However, there is a problem in that an annular wing portion protruding in the radial direction is provided on the outer periphery of the file, but the annular wing portion increases the pressure required to penetrate the file, thereby reducing the insertion depth into the seabed .

Further, as the wing portion is inserted and the seabed ground around the file is pushed outward in the radial direction, a space is generated between the file and the seabed ground, and the contact area of the seabed with respect to the surface of the file is reduced, .

Korean Patent Publication No. 10-2015-0101834

In order to solve the above-mentioned problems, the present invention provides a suction file for fixing an offshore structure, wherein the suction force is improved when the bottom is submerged.

In order to solve the above problems, the present invention provides a suction file for fixing an offshore structure, which is connected to a lower end of an offshore structure installed in a marine environment and fixed on the bottom of a seabed, A main body having a discharge hole formed in an upper surface of the vacuum chamber so as to be connected to suction means for discharging fluid in the vacuum space; And a plurality of protrusions formed radially outwardly from the outer surface of the side surface of the main body and spaced apart from each other in the vertical direction and the circumferential direction, Each of which is spaced apart in the circumferential direction so as to be filled in accordance with a subsequent movement, are arranged in mutually different height ranges, each of which is vertically spaced apart from the axial direction corresponding to the penetration direction of the main body, Wherein each of the shear projections has an inclined surface inclined downward to one side of the circumference so as to be slid when penetrating the bottom of the seabed and has an engagement surface to be engaged with the seabed ground at an upper end thereof, At the lower end of the main body, So that the ground is crushed to provide a suction file for fixed offshore structure, it characterized in that the additional teeth provided.

Here, the inner surface of the side portion of the main body includes a plurality of auxiliary shear projections radially inwardly protruded, and the auxiliary shear projections are formed to be inclined upward toward the radially inward side.
The suction unit further includes a housing part coupled to the upper part of the main body part so that the bottom surface of the main body part is seated on the bottom of the bottom when the main body part is intruded into the main body part. .

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Through the above solution, the present invention provides the following effects.

First, the plurality of shear projections are arranged in the vertical direction deviated from the axial direction, and are filled with the flow of the seabed ground during the subsequent penetration of the other shear projections adjacent to each other between the body portion and the seabed ground, And the space between the bottom of the seabed is minimized, the bearing capacity of the apparatus can be improved.

Secondly, the shear projections are arranged spirally along the outer surface of the main body, and the lower side slopes of the respective shearing projections are inclined to one side of the circumferential direction to induce rotation of the main body during penetration, thereby increasing the depth of penetration, And can be brought into close contact with the outer surface of the main body portion, so that the supporting force of the apparatus can be further improved.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an exemplary view showing a base portion of a jacket type applied to a conventional offshore wind power generator; Fig.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a jacket base to which a suction file for fixing an offshore structure is applied according to an embodiment of the present invention.
3A and 3B are perspective views illustrating a suction file for fixing an offshore structure according to an embodiment of the present invention;
4 is a cross-sectional view of a suction file for securing an offshore structure according to an embodiment of the present invention.
Fig. 5 is a cross-sectional view showing an AB section of Fig. 4. Fig.
6 is a perspective view illustrating a suction file for fixing an offshore structure according to another embodiment of the present invention.

Hereinafter, a suction file for fixing an offshore structure according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a perspective view illustrating a jacket base to which a suction file for fixing an offshore structure according to an embodiment of the present invention is applied. FIGS. 3a and 3b are perspective views showing a suction file for fixing an offshore structure according to an embodiment of the present invention. FIG. 4 is a cross-sectional view of a suction pile for fixing an offshore structure according to an embodiment of the present invention, and FIG. 5 is a cross-sectional view taken along line AB of FIG.

As shown in FIGS. 2 to 5, the suction pile 30 is connected to the lower end of an offshore structure installed in a marine environment, and is used to fix the position of the offshore structure as it is fixed in the bottom of the seabed.

Here, the above-described offshore structure is preferably understood to mean a jacket base 100 or a floating base (not shown).

That is, the floating base may be connected to the suction file through a mooring line or the like to fix the position in the sea, and the lower end of the jacket base 100 may be directly connected to the suction file 30, And the following description will be made with reference to an example in which the marine structure is provided as the jacket base 100. [

2 to 4, the jacket base 100 includes a plurality of legs 20a extending so as to protrude above the sea floor from the seabed ground c and a plurality of bracings 20b that support between the legs 20a. (20b).

Each of the legs 20a is installed so as to have a narrower interval from the bottom of the seabed c to the upper part thereof, and the upper part may protrude above the sea surface because the legs 20a have a length exceeding the depth of the marine environment.

An upper deck 10 is installed at an upper end protruding from the leg 20a to the sea level surface, and a tower of a wind power generator can be installed in the marine environment through the upper deck 10.

The respective bracings 20b may be connected to the respective legs 20a through a connecting port such as a can (not shown), and as each bracing 20b restrains one leg and the other legs, An acting load due to an external force such as wind or current can be distributed and supported by each leg 20a.

At this time, the suction piles 30 are provided in a plurality of corresponding to the number of the legs 20a and are connected to the lower ends of the respective legs 20a, and the suction piles 30 are fixed to the seabed ground c The position of the jacket base 100 can be fixed.

3A to 4, the suction paddle 30 includes a main body 30a and a front end protrusion 50. [ Here, the main body portion 30a is formed in an inverted container shape in which a bottom surface is opened, and a sound pressure space k is formed therein.

At this time, it is preferable that the main body portion 30a is made of a material such as concrete or steel having a high structural strength, and the main body portion 30a and the shearing protrusions 50 can be integrally formed, It is also possible to mutually combine them.

For example, when the main body portion 30a is manufactured by curing concrete or casting steel, a groove corresponding to the shearing protrusion 50 is formed on the mold so that the body portion 30a and the shearing protrusions 50 Or may be integrally formed. Of course, the shearing protrusions 50 may be manufactured separately, and then welded to the body of the steel, and bonded to the body of the concrete material through an adhesive.

Since the resistance force generated when the main body portion 30a penetrates into the seabed ground c is proportional to the area of the lower end surface of the main body portion 30a which is in direct contact with the seabed ground c, 32, the thinner the thickness, the better the penetration. The main body 30a is more preferably made of a steel material having a high rigidity even with a small thickness.

The main body portion 30a may be provided in a hollow cylindrical shape having uniform upper and lower diameters for easy penetration into the seabed ground c. The upper surface portion 31 and the side surface portion 32 are preferably hermetically closed.

The upper surface 31 of the main body 30a is formed with a discharge hole 31a which is vertically penetrated to communicate with the sound pressure space k at a central portion thereof. Suction means (not shown) for discharging the fluid of the sound pressure space k may be provided in the discharge hole 31a.

Here, the suction means (not shown) may be provided with a pump device or the like, and may discharge the fluid such as air or seawater of the sound pressure space k to the outside of the main body portion 30a.

When the main body portion 30a is seated on the seabed ground c, the lower end of the main body portion 30a is penetrated to a certain depth into the seabed ground c due to the weight of the main body portion 30a. The higher the depth of the seabed (c), the greater the penetration depth by self weight.

When the suction means is driven in a state in which the lower end opening of the main body portion 30a is seated and penetrated into the seabed ground c and the lower portion of the sound pressure space k is sealed, The fluid is discharged to the outside of the main body 30a and the pressure of the sound pressure space k is lowered.

At this time, a pressure in the downward direction is applied to the main body portion 30a by a pressure difference between the sound pressure space k and the outside of the main body portion 30a, and the lower end portion of the main body portion 30a is in contact with the submarine ground c) It can be deeply penetrated into the interior.

The suction puff 30 may further include a housing 40 coupled to the upper portion of the main body 30a.

In detail, the housing part 40 may be pre-casted so that concrete or the like may surround the upper side part 31 and the upper side part 31 of the main body part 30a. In the main body part 30a, A coupling rib 33a or an engaging projection 33b may be further provided along a portion in contact with the arm 40. [

At this time, the main body part 30a is seated on the bottom of the seabed together with the housing part 40, and the additional weight can be secured through the housing part 40, so that the intrusion can be smoothly performed by using its own weight.

A suction head 41 penetrating the housing part 40 in the up and down direction is provided at the center of the housing part 40. The suction part can be connected to the discharge hole 31a through the suction head 41.

At this time, the housing part 40 is provided so as to exceed the cross-sectional area of the main body part 30a, and when the main body part 30a penetrates, the part protruding radially outward from the upper edge of the main body part 30a The suction pile 30 can be more stably fixed as the bottom surface is seated on the seabed ground c.

The leg 20a may be connected to the upper surface portion 31 of the main body 30a through the suction head 41. When the mortar or the like is installed in the suction head 41, The main body portion 20a and the main body portion 30a can be firmly coupled.

3A to 5, the front end protrusion 50 is protruded radially outwardly from the side surface portion 32 of the main body portion 30a. At this time, the plurality of shear projections 50 are disposed to be spaced apart from each other in the vertical direction and the circumferential direction of the side portion of the main body portion 30a.

The projecting width of each of the shear projections 50 may be set corresponding to the soil of the bottom of the seabed c, and the projecting width of the bottom of the seabed c may be set larger.

Accordingly, even when the main body portion 30a has the same diameter and length, the contact area between the suction pile 30 and the seabed ground c is increased through the front end protrusion 50, .

Since the shear projections 50 are spaced apart from each other in the circumferential direction, the soil constituting the seabed ground c can be passed along the space between the shear projections 50, Can be achieved smoothly.

Each of the shearing projections 50 spaced apart from each other in the vertical direction is disposed to be shifted from the axial direction corresponding to the penetration direction of the body portion 30a.

In other words, the other shearing protrusions 50b and 50c are not arranged in the axial direction at one point of the side portion 32 where one shearing protrusion 50a is formed, and the other shearing protrusions 50b and 50c are formed by one shearing protrusion 50a In the axial direction. At this time, a plurality of shearing projections 50a and 50d may be positioned in the same height range along the circumferential direction.

The shear protrusions 50 protruding from the surface of the side portion 32 at the time of penetration of the main body portion 30a are formed by sandwiching the soil constituting the seabed ground c on both circumferential and radially outer sides And a blank portion is formed between the side surface portion of the main body portion 30a and the seabed ground c.

At this time, since the shearing protrusions 50 in the axial direction corresponding to the penetration direction of the shearing protrusions 50 are not disposed, the shearing protrusions 50 are stably supported on the bottom soleplate c without any space by the other shearing protrusions 50 .

Further, one of the shearing protrusions 50 and the other adjacent thereto are formed along mutually different height ranges.

For example, on the circumferential side of the first shearing protrusions 50a, a second shearing protrusion 50b protruding from the first shearing protrusions 50a may be provided, A third shearing protrusion 50c protruding in a different height range from the second shearing protrusion 50b may be provided.

At this time, the first shearing protrusions 50a and the third shearing protrusions 50c disposed on both sides of the second shearing protrusions 50b may be formed in the same height range or may be formed in different height ranges.

The shear protrusions 50 protruding from the surface of the side portion 32 at the time of penetration of the main body portion 30a are formed by sandwiching the soil constituting the seabed ground c on both circumferential and radially outer sides And a space is formed between the side surface portion of the main body portion 30a and the seabed ground c.

At this time, the second shearing protrusions 50b of the different height range are passed along the side of the blank portion formed by passing the first shearing protrusions 50a, filling the empty space formed by the first shearing protrusions 50a, and the second shearing protrusions 50b, The third hearing protrusion 50c of the other height range is passed along the side of the blank portion formed when the first heel protrusion 50b passes through the second heel protrusion 50b and the space portion formed by the second hearing protrusion 50b is filled.

Thereby, when the penetration of one shear protrusion 50a, the void formed in accordance with the surplus of the soil constituting the seabed ground c is refilled by the soil which is moved by the shear protrusions 50b of the next height range to be moved subsequently The degree of contact between the main body portion 30a and the seabed ground c can be improved.

That is, the space between the side surface portion 32 of the main body portion 30a and the seabed ground c can be minimized and the contact area between the seabed ground c and the main body portion 30a can be increased, .

3A and FIG. 4, each of the front-end protrusions 50 is formed so as to be upwardly inclined toward the outer side in the radial direction, and it is preferable that a locking surface 51 is formed at an upper end of the front- .

In detail, each of the shearing protrusions 50 is formed so as to have a shape of a right triangle whose side end face is inverted. That is, the width of the protrusion 50 protruding from the outer surface of the body portion 30a increases toward the upper portion, and the width of the protrusion protruded from the outer surface of the body portion 30a decreases toward the lower portion.

At this time, the engaging surface 51 is provided so as to be perpendicular to the axial direction, and the radially outer end of the engaging surface 51 is inclined to the side surface of the main body 30a, The inclined surface 52 may be formed at a lower portion of the base plate 50.

Since the lower inclined surface 52 of the shear protrusion 50 is slid along the seabed ground c and the soil can be smoothly pushed out, the resistive force in the penetration direction at the time of penetration of the body portion 30a is minimized, the resistance force in the opposite direction of penetration through the engagement surface 51 can be increased in the state of being engaged in the engagement portion (c), so that the supporting force of the device can be improved.

Of course, it is also possible that the engaging surface 51 is provided with a curved surface whose central portion is depressed downward so that the resistance in the opposite direction of penetration is further increased.

The shear protrusion may be formed in a wedge shape having a smaller circumferential width as it goes down. As shown in FIG. 3B, the shear protrusions may have a narrower circumferential width Shape 150 may be provided. Accordingly, the resistance against the penetration direction of the main body 30a can be significantly reduced.

Further, a plurality of auxiliary shearing protrusions (not shown) may be further provided on the inner surface of the side portion 32 of the main body portion 30a so as to protrude radially inward. At this time, the auxiliary shearing protrusions are formed to be inclined upwards toward the radially inward direction, and they can be disposed in the same manner as the shearing protrusions 50.

That is, the auxiliary shear projections are spaced apart from each other in the circumferential direction and the vertical direction along the inner surface of the side portion 32 of the main body portion 30a, and the vertically spaced apart auxiliary shear projections may be shifted from the axial direction.

Thus, the resisting force of the suction pile 30 can be minimized while the supporting force of the suction pile 30 penetrated into the bottom of the sea floor can be further improved.

6 is a perspective view illustrating a suction pile for fixing an offshore structure according to another embodiment of the present invention. In this embodiment, the detailed configuration and arrangement of the shear projections, the weight excluding the shape of the lower end portion of the body portion, and the intrusion using the negative pressure are the same as those of the above-described embodiment, and thus a detailed description thereof will be omitted.

6, the plurality of shear projections 250 are spaced apart from each other in the vertical direction and the circumferential direction of the side part 232 of the body part 230a, The direction of insertion is shifted from the axial direction corresponding to the penetration direction.

At this time, the shearing protrusions 250 are preferably arranged in a spiral shape upward along one circumferential direction.

In detail, each of the shearing protrusions 250 is formed so that the other one 250b disposed on one side of the circumference of the one side 250a of the lowermost end of the side portion 232 is disposed in a high height range.

That is, the one shearing protrusion 250a and the adjacent other shearing protrusions 250b are arranged to form a predetermined angle? From the horizontal direction, the height range gradually increases toward one side of the circumference, They are not superposed on each other and arranged in the circumferential direction.

At this time, each of the front end protrusions 250 is formed so as to be upwardly inclined toward the outer side in the radial direction so that the resistance force is minimized when penetrating the body portion 230a, but the inclined surface 252 is formed at the lower portion And an engaging surface 251 that engages with the bottom of the seabed may be formed on the upper portion of the reed.

In addition, each of the front end projections 250 may be inclined toward one side of the circumference toward the upper side so as to induce rotation in the circumferential direction when the body portion 230a penetrates.

That is, the circumferential one-direction lower slope 251 of each of the front-end protrusions 250 is formed in a diagonal direction upward toward the radially outer side and inclined diagonally toward the circumferential one-side toward the upper side. At this time, it is more preferable that the side surface 253 of the front end protrusion 250 is inclined toward one side of the circumference toward the upper side.

Accordingly, when the main body 230a is penetrated, the inclined surface 252 slides on the seabed ground so that the main body 230a can be rotated at a predetermined angle toward the circumferential direction side.

The soil of the seabed ground in contact with the main body 230a flows and can be brought into close contact with the outer surface of the main body 230a and the front end protrusion 250, so that the supporting force of the apparatus can be improved.

At this time, it is preferable that the lower portion of the main body 230a is provided with a tooth portion 235 so that the bottom of the seabed is broken when rotating according to the penetration.

In this way, the main body 230a can be rotated at a predetermined angle without any additional external force when the main body 230a penetrates through the suction means, and the crushing action of the submarine ground through the toothed portion 235 The depth of penetration of the main body 230a can be increased according to the height of the main body portion 230a.

As described above, the present invention is not limited to the above-described embodiments, and variations and modifications may be made by those skilled in the art without departing from the scope of the present invention. And such modifications are within the scope of the present invention.

30, 230: Suction file 30a, 230a:
31a: Exhaust hole 40: Housing
50, 150, 250:

Claims (11)

A suction file for fixing an offshore structure connected to a lower end of an offshore structure installed in a marine environment,
A main body part having a bottom surface opened in a container shape and having a sound pressure space formed therein, and a discharge hole formed in the top surface part of the sound pressure space so as to be connected to suction means for discharging fluid in the up and down direction; And
A plurality of protrusions provided radially outwardly on the outer surface of the side surface portion of the main body portion and spaced apart from each other in a vertical direction and a circumferential direction, Each of which is spaced apart from one another in the circumferential direction so as to be filled in accordance with the movement, are arranged in mutually different height ranges, and each vertically spaced apart from the axial direction corresponding to the penetration direction of the main body is upwardly moved along one circumferential direction And a shear projection arranged in a helical shape,
Wherein each of the shear projections has an inclined surface inclined downward to one side of the circumference so as to slide on the bottom of the seabed,
Wherein a serration portion is provided at a lower end of the main body portion so that the bottom of the seabed is broken at the time of rotation according to penetration. delete delete delete The method according to claim 1,
Wherein a plurality of auxiliary shear projections are formed on the inner surface of the side portion of the body portion in a radially inward direction,
Wherein the auxiliary shear projections are formed so as to be inclined upward toward the radially inward direction. The method according to claim 1,
And a housing part coupled to the upper part of the main body part so that a bottom surface of the main body part is seated on the seabed ground when the main body part is intruded,
Wherein a suction hole is formed in a central portion of the housing to penetrate the suction hole in a vertical direction so as to communicate with the discharge hole. delete delete delete delete delete
KR1020160028426A 2016-03-09 2016-03-09 suction pile for fixing marine structure KR101777199B1 (en)

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CN109610500A (en) * 2018-12-27 2019-04-12 中交第三航务工程局有限公司江苏分公司 A kind of more barrels of negative pressure catheter frame offshore wind power foundation structures of length and its construction method
CN109680702A (en) * 2019-02-03 2019-04-26 天津港航工程有限公司 Suction cartridge type single-pile foundation structure and its construction method
CN110453710A (en) * 2019-06-28 2019-11-15 天津大学 A kind of more jacket frame foundation structures of combined type and its construction method
CN113250230A (en) * 2021-05-31 2021-08-13 福建永福电力设计股份有限公司 Automatic bolt structure of suction pump cabin cover of offshore wind power suction pile and working method of automatic bolt structure
CN113833006A (en) * 2021-09-30 2021-12-24 华电重工股份有限公司 Cooling tower foundation structure and construction method thereof
CN113863357A (en) * 2021-09-14 2021-12-31 山东电力工程咨询院有限公司 Gravity center deviation single-column three-cylinder jacket foundation and construction method
CN114059577A (en) * 2020-07-31 2022-02-18 江苏金风科技有限公司 Construction method of fan foundation, fan foundation and wind generating set

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200304754Y1 (en) * 2002-09-03 2003-02-19 민경건설 주식회사 steel pipe casing for concrete piles driven in field using a piling vibrator
JP2006083671A (en) * 2004-09-17 2006-03-30 Daiwabo Co Ltd Flow pipe connecting implement and flow pipe connecting structure

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200304754Y1 (en) * 2002-09-03 2003-02-19 민경건설 주식회사 steel pipe casing for concrete piles driven in field using a piling vibrator
JP2006083671A (en) * 2004-09-17 2006-03-30 Daiwabo Co Ltd Flow pipe connecting implement and flow pipe connecting structure

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109610501A (en) * 2018-12-27 2019-04-12 中交第三航务工程局有限公司江苏分公司 A kind of more barrels of negative pressure stake cartridge type offshore wind power foundation structures of length and its construction method
CN109610500A (en) * 2018-12-27 2019-04-12 中交第三航务工程局有限公司江苏分公司 A kind of more barrels of negative pressure catheter frame offshore wind power foundation structures of length and its construction method
CN109680702A (en) * 2019-02-03 2019-04-26 天津港航工程有限公司 Suction cartridge type single-pile foundation structure and its construction method
CN110453710A (en) * 2019-06-28 2019-11-15 天津大学 A kind of more jacket frame foundation structures of combined type and its construction method
CN114059577A (en) * 2020-07-31 2022-02-18 江苏金风科技有限公司 Construction method of fan foundation, fan foundation and wind generating set
CN113250230A (en) * 2021-05-31 2021-08-13 福建永福电力设计股份有限公司 Automatic bolt structure of suction pump cabin cover of offshore wind power suction pile and working method of automatic bolt structure
CN113863357A (en) * 2021-09-14 2021-12-31 山东电力工程咨询院有限公司 Gravity center deviation single-column three-cylinder jacket foundation and construction method
CN113863357B (en) * 2021-09-14 2022-10-04 山东电力工程咨询院有限公司 Three-cylinder jacket foundation with gravity center deviated to single column and construction method
CN113833006A (en) * 2021-09-30 2021-12-24 华电重工股份有限公司 Cooling tower foundation structure and construction method thereof

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