CN108252286A - Bottom-sitting type pier and its water transportation installation method - Google Patents
Bottom-sitting type pier and its water transportation installation method Download PDFInfo
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- CN108252286A CN108252286A CN201611235891.4A CN201611235891A CN108252286A CN 108252286 A CN108252286 A CN 108252286A CN 201611235891 A CN201611235891 A CN 201611235891A CN 108252286 A CN108252286 A CN 108252286A
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- Prior art keywords
- pier
- sitting type
- buoyancy
- water
- moves
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Classifications
-
- 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
-
- 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
- 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
- E02B17/04—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction
-
- 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
- E02B2017/0039—Methods for placing the offshore structure
-
- 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
- E02B2017/0039—Methods for placing the offshore structure
- E02B2017/0047—Methods for placing the offshore structure using a barge
-
- 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
- E02B2017/0056—Platforms with supporting legs
- E02B2017/0073—Details of sea bottom engaging footing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Foundations (AREA)
Abstract
Pier is moved the invention discloses a kind of bottom-sitting type, particularly bottom-sitting type moves steel and concrete structure artificial ocean island platform, including：Upper brace structure；And four buoyancy barrel structures for supporting the upper brace structure, wherein, the upper brace structure is equipped with ballast water tank water, each buoyancy barrel structure includes the height-regulating shell ring structure being connect with the upper brace structure operation, buoyancy tube section structure equipped with ballast water tank water, and buoyancy tube understructure, the ballast water tank water of the upper brace structure and described buoyancy barrel structure selectively can fill or discharge water, so that the pier rises and falls in water, and the buoyancy tube understructure can be anchored in the bottom, so that the pier is fixed on the bottom by selectivity.The invention further relates to the methods that the transport peace installation and dismantling of the pier move.
Description
Technical field
The present invention relates to bottom-sitting types to move steel and concrete structure pier (abbreviation bottom-supported platform), is particularly bottom-sitting type
Removable steel and concrete structure artificial ocean island platform, is a kind of artificial ocean island platform for belonging to marine engineering equipment field.
Background technology
At present, ocean platform mainly has offshore platform (such as jack up offshore platform, semi-submersible offshore oil is put down
Platform etc.), floating marine steel structure platform, jack up steel construction ocean islands and reefs platform and strong concrete light ocean fixed platform.
Offshore platform is used mainly as marine petroleum exploitation.Floating marine steel structure platform, jack up steel construction ocean islands and reefs are put down
Platform is mainly as military or civilian fast rapid-result island.Known concrete ocean fixed platform is as military or civilian fixed
Man-made island, as ocean urban construction, Marine Tourism project construction, that military or civilian ocean work station builds oil gas platform is uncomfortable
With.Floating marine steel structure platform and jack up steel construction ocean islands and reefs platform cost are expensive short with service life, concrete ocean
Fixed platform low cost and service life are long, advantageous.But ocean fixed platform will drive piles fixation, and certain sea is needed to apply
It is the work period, then highly difficult if necessary to movement.So that there are many Marine Tourism project constructions, military or civilian ocean work station to build
If limited to.Therefore need a kind of low cost, service life are long, the offshore construction period is short, fast rapid-result island, when needing mobile
Wait the ocean platform that can be moved easily again.Bottom-supported platform is exactly that a kind of bottom-sitting type developed for this demand moves steel
Mixed structure artificial ocean island platform.
Invention content
According to an aspect of the invention, there is provided a kind of bottom-sitting type moves pier, particularly bottom-sitting type is removable
Dynamic steel and concrete structure artificial ocean island platform, including：
Upper brace structure；And
For supporting four buoyancy barrel structures of the upper brace structure,
Wherein, the upper brace structure is equipped with ballast water tank water, and each buoyancy barrel structure includes and the upper brace knot
What structure was operatively connected is turned up shell ring structure, buoyancy tube section structure and buoyancy tube understructure equipped with ballast water tank water, described
The ballast water tank water of upper brace structure and described buoyancy barrel structure can selective water injection so that the pier exists
It rises and falls in water, and the buoyancy tube understructure can be anchored in the bottom, so that the pier is solid relative to the bottom
It is fixed.
Optionally, the buoyancy tube understructure is equipped with pointed stake, for anchoring in the bottom.Particularly, the pointed stake is
Multiple steel pipe pointed stakes of comb arrangement.
Optionally, the fixation ring-plane structure that shell ring structure nesting is turned up and is mounted on the upper end of the buoyancy tube section structure
On.
Optionally, the shell ring structure of being turned up includes steel cylinder being turned up and for jacking the height-regulating lifting that steel cylinder is turned up
Structure, the upper flanges that steel cylinder is turned up are connected with the steel flange of the bottom of the upper brace structure via bolt is connect.
Optionally, the bottom-sitting type moves the levelness of pier and can be chosen via four buoyancy barrel structures
Selecting property is adjusted.
Optionally, high-pressure water pipe connector is equipped in the buoyancy tube understructure, for moving water in the bottom-sitting type
When upper mounting plate floats, high pressure water is sprayed to the bottom.
Optionally, the buoyancy tube section structure is steel and concrete structure, and the buoyancy tube understructure is steel construction, and the two is welded
Together.
Optionally, the height-regulating shell ring structure further includes height adjusting cushion block, for fixing the height that the height-regulating steel cylinder is jacked
Degree.
Optionally, the upper brace structure includes the upper brace of concrete structure, is multilayer contignation, described
Upper brace has 50 meters × 50 meters of length and width dimensions, and four buoyancy tube structures are located at four of the upper brace structure
Adjacent corner.
Optionally, the upper brace structure is additionally provided with the buoyancy tank that can be dismantled on the side towards the water surface, described floating
Case selectively can move pier for the bottom-sitting type and provide buoyancy.
According to another aspect of the present invention, additionally provide a kind of above-mentioned bottom-sitting type move pier on the water, it is special
It is not the method at sea transporting installation, including：
In pre-fabricated factory, bottom-sitting type described in prefabricated and integral assembling moves pier；And
The bottom-sitting type is carried using buoyancy tank to move pier and pass through slide plate and slideway by its integral translation to refuting
On ship or semi-submerged ship.
Optionally, it moves pier in the bottom-sitting type and is transported to the specific bodies of water via the barge or semi-submerged ship
Afterwards, the barge or partly latent are foundered, and so as to the buoyancy tank and the bottom-sitting type, to move pier waterborne from floating on；With
And
Remove the barge or semi-submerged ship.
Optionally, the buoyancy tank water filling is sunk, so as to move pier waterborne from floating on for the bottom-sitting type；And
Remove the buoyancy tank.
Optionally, the barge or partly latent are foundered can be carried out at the same time with buoyancy tank water filling sinking.
Optionally, the bottom-sitting type moves the ballast water tank water water filling of pier, so that the bottom-sitting type moves
Pier sinks.
Optionally, before the bottom-sitting type moves pier sinking, the bottom-sitting type is moved under pier
It is heavy to be moved to a scheduled place.
Optionally, the bottom-sitting type moves pier sinking, so that the bottom-sitting type moves pier
Buoyancy tube understructure is inserted into the predetermined depth in water-bed basal plane.
Optionally, pier is moved by bottom-sitting type described in following measures leveling：
Bottom-sitting type described in synchronization of jacking up moves all height-regulating steel cylinders of pier to a setting pressure；
Some height-regulating steel cylinder is continued to jack, until all upper flanges face levelness that steel cylinder is turned up are consistent and institute
Stating bottom-sitting type, to move the pressure that all buoyancy barrel structures of pier are subject to consistent.
Optionally, it is moved in the bottom-sitting type and architectural engineering is carried out on pier, and according to the progress of architectural engineering
With quantities load, the water of ballast water tank water described in synchronous emission reduction.
According to another aspect of the present invention, it additionally provides a kind of tear open and moves the side that above-mentioned bottom-sitting type moves pier
Method, including：
So that the bottom-sitting type moves the outside draining of ballast water tank water of pier, so as to which the bottom-sitting type moves water
Upper mounting plate can float.
Optionally, the buoyancy tube understructure that pier is moved from the bottom-sitting type is sprayed water towards water-bed, with toilet
It states bottom-sitting type and moves pier floating.
Optionally, the bottom-sitting type is carried on the water using the buoyancy tank that can selectively rise and fall move pier.
Description of the drawings
From the aftermentioned aforementioned and other side being described in detail and the present invention will be more fully understood with reference to following attached drawing
Face.It should be pointed out that the ratio of each attached drawing is possible to different for clarity of illustration, but this can't be influenced to this
The understanding of invention.In the accompanying drawings：
Fig. 1 shows that bottom-sitting type according to an embodiment of the invention moves the schematic diagram of steel and concrete structure pier；
Fig. 2 shows the schematic diagrames of the height-regulating shell ring of the bottom-sitting type pier in Fig. 1；
Fig. 3 a and 3b are schematically illustrated in bottom-sitting type pier of the invention in marine engineering equipment field at sea
The schematic diagram of towage transport；
Fig. 4 diagrammatically illustrates the schematic diagram that the bottom-sitting type pier in Fig. 3 a and 3b is detached with tugboat；
Fig. 5 diagrammatically illustrates the schematic diagram that bottom-sitting type pier is detached with buoyancy tank；
Fig. 6 diagrammatically illustrates the schematic diagram that bottom-sitting type pier installs displacement on the water；And
Fig. 7 diagrammatically illustrates the bottom-sitting type pier schematic diagram that installation is complete.
Specific embodiment
In each attached drawing of the present invention, structure is identical or intimate feature is indicated by the same numbers.
Firstly the need of being pointed out that the bottom-sitting type pier being previously mentioned in this specification can not only fill in ocean engineering
It uses, can also be used in any water areas project equipment in standby field.For example, the bottom-sitting type pier of the present invention can be made
Steel and concrete structure artificial ocean island platform is moved for bottom-sitting type to use.
According to one embodiment of present invention, bottom-sitting type move steel and concrete structure pier (viewing from above) with 50 meters ×
50 meters of size.As shown in Figure 1, bottom-sitting type, which moves steel and concrete structure pier, mainly includes upper brace structure 1 and four
Buoyancy barrel structure 2.The length and width dimensions that substantially 50 meters × 50 meters of upper brace structure 1, and four buoyancy barrel structures 2 are located at
Near the four corners of upper brace structure 1.
Further as shown in Figure 1, each buoyancy barrel structure 2 generally includes and shell ring structure 21, buoyancy tube section structure is turned up
22 and buoyancy tube pedestal comb stake formula structure 23.
Upper brace structure 1 is built using steel and concrete structure, and upper brace is one to two, three multilayer contignations, is coagulation
Soil structure inside sets ballast water tank water, fresh-water tank, foul water tank and channel, garage, room and common equipment room etc..Upper brace bottom
Junction with four buoyancy barrel structures 2 is realized using steel construction.Bottom-supported platform is propped up using four buoyancy barrel structures 2
Support, buoyancy barrel structure 2 is steel and concrete structure, and shell ring structure 21 is turned up and is put down on bottom-supported platform using elevating mechanism is turned up can adjusting
The levelness in face.For example, the hollow cylinder of buoyancy tube section structure 22 can add ballast seawater, bottom-supported platform is made to sink, in this way
The buoyancy tube pedestal comb stake formula structure 23 of four buoyancy barrel structures 2 sits on seabed.Buoyancy tube pedestal comb stake formula structure 23 is steel knot
Structure.
Bottom-supported platform absorbs jack up offshore platform or jack up steel construction ocean islands and reefs platform and concrete
The characteristics of ocean fixed platform：First, absorb concrete ocean fixed platform supports upper brace by four cylindrical structures,
The characteristics of without filling out extra large, permeable, low cost；Second is that absorb ocean jack up oil platform or jack up steel construction islands and reefs platform
Upper brace is jacked by several spud leg lifting mechanisms, spud leg is made to be inserted into sea further through a few pile legs of upper brace dead weight pressurization
Bottom reaches support upper brace and fixed platform.Upper brace can be down to sea by spud leg lifting mechanism when mobile can float,
And pass through the spud leg part for spraying high pressure water and spud leg lifting mechanism extraction insertion seabed, reach moveable feature.Bottom-sitting type
The characteristics of platform intergration both types platform, has innovated the main feature and every main knot below of following general aspect
The feature that structure is described to：
1st, the upper brace structure 1 of bottom-supported platform is using steel and concrete structure, and upper brace is one to two, three multilayer beam slabs
Structure is concrete structure, inside sets ballast water tank water, fresh-water tank, foul water tank and channel, garage, room and common equipment room etc..It is special
Be not it is interior set ballast water tank water, ballast seawater case is added ballast seawater be adjust bottom-supported platform in installation process to four buoyancy
Barrel structure 2 is further applied load and (applies pressure) use.
2nd, four buoyancy barrel structures 2 are hollow cylindrical steel and concrete structures, are equal to jack up oil platform or jack up steel
A few pile legs of structure islands and reefs platform support upper brace structure and top-out.Hollow cylinder is mainly characterized by as ballast
Water tank, to adding ballast seawater that bottom-supported platform is made to sink in hollow cylinder, the buoyancy tube pedestal comb stake formula of four buoyancy barrel structures 2
Structure 23 is sat on seabed basal plane 200.
3rd, by ballast seawater being added to make seat in the hollow cylinder to four buoyancy barrel structures 2 in bottom-supported platform installation process
Bottom formula platform sinks, and buoyancy tube pedestal comb stake formula structure 23 sits on seabed basal plane 200, further through to the ballast inside upper brace
The buoyancy tube pedestal comb stake formula structure 23 that water tank adds ballast water and makes four buoyancy barrel structures is inserted into seabed basal plane 200.And it presses
Continue according to the load requirement that bottom-supported platform is built above to the ballast water tank water inside upper brace and four buoyancy barrel structures 2
Add ballast seawater in hollow cylinder, the buoyancy tube pedestal comb stake formula structure 23 of four buoyancy barrel structures is made to be inserted into seabed basal plane
Projected depth in 200 reaches basis endurance requirement and fixed platform.And one test period of pressurize is put down as bottom-sitting type
The product acceptance data of platform installation.This method is equal to jack up oil platform or jack up steel construction islands and reefs platform passes through spud leg top
It rises upper brace to reach to spud leg pressurization, spud leg is made to be inserted into the basal plane of seabed.
4th, bottom-supported platform is at sea in installation process when upper brace occur on one side or when a certain angle is not horizontal, can be with
The levelness of upper brace is adjusted by the way that shell ring structure is turned up.Method is：Four height-regulating liftings that shell ring structure 21 is turned up
Steel cylinder is turned up in mechanism synchronization of jacking up, jacks that (purpose is to allow the settings being subject to of four buoyancy barrel structures to certain setting pressure
Pressure is basically identical), the height-regulating elevating mechanism jacked to the levelness needs on certain one side or a certain angle continues pressurization jacking, until four
A upper flanges face levelness that steel cylinder is turned up is basically identical, and the pressure being subject to of four buoyancy barrel structures 22 is basically identical.This
In, it is a kind of tooling device in bottom-supported platform installation that elevating mechanism, which is turned up, is not on each bottom-supported platform
Equipment, is very different, jack up oil platform or jack up than jack up oil platform or jack up steel construction islands and reefs platform
The elevating mechanism of steel construction islands and reefs platform is mounted in the equipment on platform, and elevating mechanism, gear will be installed on each platform
And rack and lifting fastening system, so jack up oil platform or jack up steel construction islands and reefs platform involve great expense.
5th, it when bottom-supported platform needs to move mobile, can also be put down as jack up oil platform or jack up steel construction islands and reefs
The same floating movement of platform.It is characterized in：In the hollow cylinder of the ballast water tank water inside upper brace and four buoyancy barrel structures 2
The design program that ballast seawater is moved according to floating discharges ballast seawater (be equal to and unload ballast outward) outward, produces bottom-supported platform
Life (is equal to jack up oil platform or jack up steel construction islands and reefs platform up takes out spud leg by elevating mechanism) to buoyancy.
And the pipeline in stake formula structure is combed from the buoyancy tube pedestal of four buoyancy barrel structures by high-pressure water jet equipment and is sprayed toward seabed
High pressure water makes the buoyancy tube pedestal comb stake formula structure 23 of four buoyancy barrel structures 2 be more readily pulled from seabed basal plane 200.By not
It is disconnected that ballast seawater in the hollow cylinder of ballast water tank water inside upper brace and four buoyancy barrel structures 2 is moved according to floating
Design program discharge ballast seawater outward, until reaching the complete floating of bottom-supported platform.Bottom-supported platform is moved with tugboat again
It is dynamic, then installed and used by marine transportation to new installation point.
It is built above 1 main support platform of upper brace structure, is the conversion layer of constuction loads above platform.Upper brace
The bottom surface of structure 1 and the distance (i.e. apart from the height on sea) on sea 100 are high by the wave of the marine site maximum storm of mounting platform
Safe design.Upper brace structure 1 can be designed to 1 to 3 layer according to purposes, one layer of inside mainly can layout design ballast water tank water,
Fresh-water tank, foul water tank etc.；Two layers or three layers of inside can layout design channel, garage, room and common equipment rooms etc..Also it can arrange
Design vegetable cultivation field.Upper brace structure 1 mainly has following characteristics.
A, it is characterized in：1 Interior layout design ballast seawater case of upper brace structure.Ballast seawater case is to adjust bottom-sitting type to put down
Platform is further applied load to four buoyancy barrel structures 2 in installation process and (applies pressure) use.Lead in bottom-supported platform installation process
It crosses in the hollow cylinder to four buoyancy barrel structures 2 plus ballast seawater makes its sinking sit on seabed basal plane, further through to upper flat
The buoyancy tube pedestal comb stake formula structure 23 that ballast water tank water inside platform structure 1 adds ballast water and makes four buoyancy barrel structures 2 is inserted into
In seabed basal plane 200, it is to pressurize according to the load requirement that bottom-supported platform is built above, makes the buoyancy of four buoyancy barrel structures 2
Cylinder pedestal comb stake formula structure 23 is inserted into the projected depth in seabed basal plane 200, reaches basis endurance requirement, and pressurize one
The product acceptance data that a test period is installed as bottom-supported platform.This method is equal to jack up oil platform or jack up steel
Structure islands and reefs platform jacks upper brace by spud leg and reaches to spud leg pressurization, and spud leg is made to be inserted into the basal plane of seabed.
B, it is characterized in：Upper brace is at low cost and corrosion-resistant mainly using concrete structure.In addition, concrete structure ratio
Steel construction weight is that an advantage plays the role of pressurizeing to four buoyancy barrel structures 2 herein.
C, it is characterized in：1 bottom of upper brace structure and the 21 upper surface steel of height-regulating shell ring steel construction of four buoyancy barrel structures 2
Flange connections and use one section of steel construction cylinder welding steel flange, it is convenient with 2 upper end steel flange of buoyancy barrel structure with high-strength
Bolt 214 (Fig. 2) connects, and moves steel and concrete structure artificial ocean island platform in the assembled entire bottom-sitting type of pre-fabricated factory, reduces sea
Upper site operation installation workload.
Four buoyancy barrel structures 2 are each to comb stake by height-regulating shell ring structure 21, buoyancy tube section structure 22 and buoyancy tube pedestal
23 three parts of formula structure form.The total height of buoyancy barrel structure 2 will be marked according to the installation point seabed basal plane 200 of buoyancy barrel structure
Height is to the height on sea 100, plus 1 bottom surface of upper brace structure with the safe distance on sea 100, along with design buoyancy tube bottom
Seat comb stake formula structure 23 is inserted into the depth of seabed basal plane 200 and nargin synthesis determines.
The overall height H of buoyancy barrel structure 2:H=h1+h2+h3+h4
The installation point seabed basal plane absolute altitude of h1 --- buoyancy barrel structure 2 is to the height on sea；
The safe distance of h2 --- 1 bottom surface of upper brace structure and sea 100；
H3 --- buoyancy tube pedestal comb stake formula structure 23 is inserted into the depth of seabed basal plane 200；
H4 --- safety margin.
It is characterized in：It is hardened that the nested retainer ring for being mounted on 22 inner upper end of buoyancy tube section structure of shell ring structure 21 is turned up
On structure.Buoyancy tube section structure 22 is steel and concrete structure, and bottom end is welding with buoyancy tube pedestal comb stake formula structure 23.
A, shell ring structure 21 is turned up
As shown in Fig. 2, it is steel construction that shell ring structure 21, which is turned up, generally includes and steel cylinder 211 is turned up, elevating mechanism is turned up
212nd, height adjusting cushion block 213 and connection high-strength bolt 214.
A1, it is characterized in：Entire platform is at sea in installation process when upper brace occur on one side or a certain angle is not horizontal
When, the levelness of upper brace can be adjusted by the way that shell ring structure 21 is turned up.Method is：Four are turned up shell ring structure 21
Elevating mechanism 212 synchronization of jacking up is turned up, steel cylinder 211 is turned up, jack that (purpose is to allow four buoyancy tube knots to certain setting pressure
The setting pressure being subject to of structure 2 is basically identical), the height-regulating elevating mechanism that the levelness needs on certain one side or a certain angle are jacked
212 continue pressurization jacking, until the upper flanges face levelness of four height-regulating steel cylinders 211 is basically identical, (2) four buoyancy barrel structures
The pressure being subject to it is basically identical.
A2, it is characterized in：Height adjusting cushion block 213 is elastic support, and height adjusting cushion block 213 is put into according to jacking gap is turned up.
A3, it is characterized in：It is that upper brace structure 1 is connect formation one with four buoyancy barrel structures 2 to connect high-strength bolt 214
The high-strength bolt of a entirety bottom-supported platform.
B, buoyancy tube section structure 22
Buoyancy tube section structure 22 is an intermediate cylinder section structure of buoyancy barrel structure 2, is steel and concrete structure, is an open circles
Barrel structure, main function are storage ballast seawaters as adjusting ballast and buoyancy.
B1, it is characterized in：It is carried in bottom-supported platform installation process by pressurizeing in the hollow cylinder to four buoyancy barrel structures 2
Seawater makes bottom-supported platform sinking and buoyancy tube pedestal comb stake formula structure sit on seabed basal plane 200.And according on bottom-supported platform
The load requirement of face building continues to pressurize in the hollow cylinder to the ballast water tank water inside upper brace and four buoyancy barrel structures
Seawater is carried, the buoyancy tube pedestal of four buoyancy barrel structures is made to comb the projected depth that stake formula structure 23 is inserted into seabed basal plane 200,
Reach basis endurance requirement and fixed platform.
C, buoyancy tube pedestal comb stake formula structure 23
Buoyancy tube pedestal comb stake formula structure 23 is steel construction, and buoyancy tube pedestal is the box steel knot of a circle or rectangle
Structure is equipped with cylindrical steel tube pointed stake on buoyancy tube pedestal by comb arrangement.Buoyancy tube pedestal be a circle or rectangle plane with
Seabed basal plane contact can increase contact area, and seabed basal plane is easier to insert by the cylindrical steel tube pointed stake of comb arrangement installation
It is interior.It should be apparent to those skilled in the art that the pointed stake of buoyancy tube pedestal also can by any other suitable material and/or in the form of
Setting, and it is also not necessarily limited to comb arrangement installation.
C1, it is characterized in：Buoyancy tube pedestal comb stake formula structure 23 is that steel construction welds together with buoyancy tube section structure 22.
C2, it is characterized in：Buoyancy tube pedestal is the box type steel structure of a circle or rectangle, and comb cloth is pressed on buoyancy tube pedestal
It puts and cylindrical steel tube pointed stake is installed.Buoyancy tube pedestal is that the plane of a circle or rectangle is contacted to increase with seabed basal plane and contacted
Area is easier to insert by the cylindrical steel tube pointed stake of comb arrangement installation in the basal plane of seabed.
C3, it is characterized in：High-pressure water pipe connector is disposed in buoyancy tube pedestal comb stake formula structure 23.Prepare in bottom-supported platform
During floating, the high-pressure water pipe connector arranged in the pipe of high-pressure water jet equipment and buoyancy tube pedestal comb stake formula structure 23 is connected
It connects, the pipeline out of buoyancy tube pedestal comb stake formula structure sprays high pressure water toward seabed, and buoyancy tube pedestal comb stake formula structure is made more to hold
Easily from Submarine Basic emaciated face from.
Bottom-supported platform marine transportation and installation method
(1) bottom-supported platform (sea) transportation resources waterborne
Bottom-supported platform is in order to reduce marine site operation and installation workload.Will pre-fabricated factory carry out component it is prefabricated and
Integral assembling.
For example, referring to Chinese patent application No.201410136970.4, (" prestressed concrete ocean fixed platform is whole
Assembled translating device and method ") in the technology mentioned carry out integral assembling and the translation of bottom-supported platform.
As shown in Figure 3a, it is that bottom-supported platform is moved into sea using slide plate 503 and slideway 504 using the method for sliding
On the barge of transport or semi-submerged ship 505.Then it is auxiliary in both sides with two tugboats 400 with a tugboat 300 in direction of advance towage
Balance and steering are helped, refers to Fig. 3 b.If using partly latent Ship Transportation, there is no need to tugboats.
Because bottom-supported platform it is assembled it is integral after, by the buoyancy tube pedestal comb stake of upper brace structure 1 to buoyancy barrel structure 2
23 lower end overall height of formula structure is higher.If 1 bottom of upper brace structure of bottom-supported platform is placed directly in barge or partly latent
The big clan of buoyancy barrel structure 2 can then be made to enter under water, to make transportational process deeper to the depth of water requirement in navigation channel on the deck of ship, can be made
Marine transportation is limited to.
This method, which is taken, places and fixes in advance buoyancy tank 501 and branch on slide plate 503 in bottom-supported platform integral assembling
Frame 502 is raised to bottom-supported platform the height of marine transportation requirement.On the one hand meet marine transportation process the depth of water requirement and
Reduce water resistance；On the other hand it is also convenient for the integral assembling of upper brace structure 1 and buoyancy barrel structure 2.Utilize buoyancy tank 501 and branch
The height that frame 502 is raised to bottom-supported platform marine transportation requirement will integrate the consideration of various aspects factor comprehensive security.
Buoyancy tank 501 is in addition to above-mentioned effect, also with other effects：It is needed when at sea being installed according to bottom-supported platform floating
The buoyancy of the size design buoyancy tank of towing force.In addition, the essential shape size of buoyancy tank is designed according to the depth of water situation in marine site.And
Buoyancy tank 501 is designed with sea water ballast tank and empty cabin and the seawater pumping system for being equipped with plus-minus row's ballast seawater, can be according to need
Adjust the buoyancy and floading condition of buoyancy tank.
(2) offshore installation method
The first step：When barge or semi-submerged ship 505 are hauled bottom-supported platform to the marine site of installation by tugboat, barge or
Semi-submerged ship 505 itself plus ballast seawater sink, and barge or semi-submerged ship 505 sink down into utilize the buoyancy of buoyancy tank 501 and seat bottom always
The floatage energy of four buoyancy barrel structures 2 of formula platform is from floating on sea, at this moment, barge or semi-submerged ship 505 and slide plate 503 and buoyancy tank
501 start to be detached from, and then barge 505 and slide plate 503 are pulled out and removed with tugboat.Refer to Fig. 4.Alternatively, semi-submerged ship oneself moves back
Go out.
Second step：Buoyancy tank 501 itself plus ballast seawater sink, and sink down into four buoyancy tubes using bottom-supported platform always
The floatage energy of structure 2 is from sea is floated on, and at this moment, buoyancy tank 501 and stent 502 start to be detached from bottom-supported platform, then use tugboat
Buoyancy tank 501 and stent 502 are pulled out and removed.Refer to Fig. 5.
Certainly, if the conditions such as the marine site depth of water and environment are safe, the above-mentioned first step and second step can also be merged together
It does, directly allows barge or semi-submerged ship and buoyancy tank that ballast seawater is added to sink to being detached from bottom-supported platform, utilize four of bottom-supported platform
The buoyancy of buoyancy barrel structure 2 is from sea is floated on, then with tugboat buoyancy tank 501, stent 502, slide plate 503, slideway 504 and barge
505 pull out and remove together.Or semi-submerged ship oneself exits.
Third walks：Bottom-supported platform is moved to mounting base punctuate position by tugboat assistance, by four buoyancy tube knots
In the hollow cylinder of structure 2 plus ballast seawater makes bottom-supported platform sinking and buoyancy tube pedestal comb stake formula structure sit on seabed basal plane.
And continue according to the load requirement that bottom-supported platform is built above to the ballast water tank water inside upper brace and four buoyancy tube knots
Add ballast seawater in the hollow cylinder of structure, the buoyancy tube pedestal comb stake formula structure 23 of four buoyancy barrel structures 2 is made to be inserted into seabed
Projected depth in basal plane 200 reaches basis endurance requirement and fixed platform.Refer to Fig. 6 and Fig. 7.
4th step：Continue according to the load requirement that bottom-supported platform is built above to the ballast water tank water inside upper brace and
Add ballast seawater in the hollow cylinder of four buoyancy barrel structures.And one test period of pressurize is installed as bottom-supported platform
Product acceptance data.This method is equal to jack up oil platform or jack up steel construction islands and reefs platform jacks upper flat by spud leg
Delta pressurizes to spud leg, and spud leg is made to be inserted into the basal plane of seabed.
5th step：Bottom-supported platform at sea in installation process if there is upper brace on one side or a certain angle is not horizontal
When (the buoyancy tube pedestal of some or two to three buoyancy barrel structures 2 comb stake formula structure is inserted into the depth in seabed and original is set
Meter calculated value changes), the levelness of upper brace can be adjusted by the way that shell ring structure 21 is turned up.Method is：Four
Steel cylinder 211, jacking to certain setting pressure (purpose is turned up in 212 synchronization of jacking up of height-regulating elevating mechanism that shell ring structure 21 is turned up
It is that the setting pressure that four buoyancy barrel structures 2 is allowed to be subject to is basically identical), the levelness needs on certain one side or a certain angle are jacked
It is basically identical that the upper flanges face levelness that elevating mechanism 212 continues pressurization jacking to four height-regulating steel cylinders 211 is turned up, four floating
The pressure being subject to of power barrel structure 2 is basically identical.It is finally installation height adjusting cushion block 213 and connection high-strength bolt 214.
6th step：Start that architectural engineering above bottom-supported platform is installed, according to the target advance of installation and calculate plan peace
The load of building quantity is filled, synchronizes the ballast seawater and four buoyancy barrel structures of the ballast water tank water inside emission reduction upper brace
Ballast seawater in 2 hollow cylinder.Until architectural engineering installation completion above bottom-supported platform.Bottom-supported platform is controlled to sea
The pressure of sole plane is in scope of design.
7th step：Above bottom-supported platform after architectural engineering installation completion and in the case of normal use, four are monitored at any time
The sedimentation variation of a buoyancy barrel structure 2 adjusts 21 height of height-regulating shell ring structure and pressure of buoyancy barrel structure 2, it is ensured that sit in time
The safety of bottom formula platform.
(3) bottom-supported platform sea removal moving method
When bottom-supported platform needs to remove mobile, can also be put down as jack up oil platform or jack up steel construction islands and reefs
The such floating movement of platform.
The first step：The ballast seawater in the hollow cylinder of the ballast water tank water inside upper brace and four buoyancy barrel structures
The design program moved according to floating discharges and (is equal to and unloads ballast outward) outward, generates bottom-supported platform (equivalent to buoyancy
Spud leg is up taken out by elevating mechanism in jack up oil platform or jack up steel construction islands and reefs platform).
Second step：Pass through pipe of the high-pressure water jet equipment out of four buoyancy barrel structures buoyancy tube pedestal comb stake formula structure
Road sprays high pressure water toward seabed, and the buoyancy tube pedestal comb stake formula structure of four buoyancy barrel structures is made to be more readily pulled from seabed basal plane.
Third walks：By constantly in the hollow cylinder of the ballast water tank water inside upper brace and four buoyancy barrel structures
The design program that ballast seawater is moved according to floating discharges ballast seawater outward, until reaching the complete floating of bottom-supported platform.
4th step：Bottom-supported platform is moved with tugboat again.Then with above-mentioned marine transportation method contrary operation seat bottom
Formula platform transports new installation marine site and reinstalls to use.
Although only certain exemplary embodiments of this invention is described in detail here, they give just for the sake of the purpose explained
Go out, and it is not considered that they are construed as limiting the scope of the present invention.Without departing from the spirit and scope of the present invention, respectively
Kind is replaced, change and transformation can be contemplated out.
Claims (23)
1. a kind of bottom-sitting type moves pier, particularly bottom-sitting type moves steel and concrete structure artificial ocean island platform, including：
Upper brace structure；And
For supporting four buoyancy barrel structures of the upper brace structure,
Wherein, the upper brace structure is equipped with ballast water tank water, and each buoyancy barrel structure includes grasping with the upper brace structure
Shell ring structure, buoyancy tube section structure and buoyancy tube understructure equipped with ballast water tank water, the top is turned up in the property made connection
The ballast water tank water of platform structure and described buoyancy barrel structure can selective water injection so that the pier is in water
Sink-float, and the buoyancy tube understructure can be anchored in the bottom, so that the pier is fixed relative to the bottom.
2. bottom-sitting type according to claim 1 moves pier, which is characterized in that the buoyancy tube understructure is set
There is pointed stake, for anchoring in the bottom.
3. bottom-sitting type according to claim 1 or 2 moves pier, which is characterized in that the height-regulating shell ring structure
Nesting is mounted on the fixation ring-plane structure of the upper end of the buoyancy tube section structure.
4. bottom-sitting type according to claim 3 moves pier, which is characterized in that the height-regulating shell ring structure includes
Be turned up steel cylinder and for jack it is described be turned up steel cylinder height-regulating lifting structure, it is described be turned up steel cylinder upper flanges with it is described on
The steel flange of the bottom of portion's platform structure is connected via connection bolt.
5. pier is moved according to any bottom-sitting type of preceding claims, which is characterized in that the bottom-sitting type can
The levelness of mobile pier can selectively be adjusted via four buoyancy barrel structures.
6. pier is moved according to any bottom-sitting type of preceding claims, which is characterized in that the buoyancy tube bottom
High-pressure water pipe connector is equipped in holder structure, for when the bottom-sitting type moves pier and floats, spraying high pressure to the bottom
Water.
7. pier is moved according to any bottom-sitting type of preceding claims, which is characterized in that the buoyancy shell ring
Structure is steel and concrete structure, and the buoyancy tube understructure is steel construction, and the two welds together.
8. bottom-sitting type according to claim 4 moves pier, which is characterized in that the height-regulating shell ring structure is also wrapped
Height adjusting cushion block is included, for fixing the height that the height-regulating steel cylinder is jacked.
9. pier is moved according to any bottom-sitting type of preceding claims, which is characterized in that the upper brace
Structure includes the upper brace of concrete structure, is multilayer contignation, and the upper brace has 50 meters × 50 meters of length
Wide size, four buoyancy tube structures are located near the four corners of the upper brace structure.
10. pier is moved according to any bottom-sitting type of preceding claims, which is characterized in that the upper brace
Structure is additionally provided with the buoyancy tank that can be dismantled on the side towards the water surface, and the buoyancy tank can be selectively removable for the bottom-sitting type
Dynamic pier provides buoyancy.
11. pier is moved according to any bottom-sitting type of claim 2 to 10, which is characterized in that the pointed stake is
Multiple steel pipe pointed stakes of comb arrangement.
12. a kind of bottom-sitting type according to any one of claims 1 to 11 moves pier on the water, particularly at sea
The method for transporting installation, including：
In pre-fabricated factory, bottom-sitting type described in prefabricated and integral assembling moves pier；And
Using buoyancy tank carry the bottom-sitting type move pier and pass through slide plate and slideway by its integral translation to barge or
On semi-submerged ship.
13. according to the method for claim 12, which is characterized in that move pier via described in the bottom-sitting type
After barge or semi-submerged ship are transported to the specific bodies of water, the barge or partly latent are foundered, so as to the buoyancy tank and the seat bottom
It is waterborne from floating on that formula moves pier；And
Remove the barge or semi-submerged ship.
14. according to the method for claim 13, which is characterized in that the buoyancy tank water filling is sunk, so that the bottom-sitting type
Removable pier is waterborne from floating on；And
Remove the buoyancy tank.
15. according to the method for claim 14, which is characterized in that the barge or partly latent are foundered and the buoyancy tank water filling
Sinking can be carried out at the same time.
16. the method according to claims 14 or 15, which is characterized in that the bottom-sitting type moves the ballast of pier
Water tank with water, so that the bottom-sitting type moves pier sinking.
17. according to the method for claim 16, which is characterized in that move pier in the bottom-sitting type and sink it
Before, the bottom-sitting type moves pier sinking and is moved to a scheduled place.
18. method according to claim 16 or 17, which is characterized in that the bottom-sitting type moves pier sinking,
So that the buoyancy tube understructure that the bottom-sitting type moves pier is inserted into predetermined depth in water-bed basal plane.
19. according to the method for claim 18, which is characterized in that water is moved by bottom-sitting type described in following measures leveling
Upper mounting plate：
Bottom-sitting type described in synchronization of jacking up moves all height-regulating steel cylinders of pier to a setting pressure；
Some height-regulating steel cylinder is continued to jack, until all upper flanges face levelness that steel cylinders are turned up are consistent and the seat
The pressure that all buoyancy barrel structures that bottom formula moves pier are subject to is consistent.
20. according to any method of claim 17 to 19, which is characterized in that move pier in the bottom-sitting type
Upper carry out architectural engineering, and progress and quantities load according to architectural engineering, the water of ballast water tank water described in synchronous emission reduction.
21. a kind of tear the method that any bottom-sitting type of claim 1 to 11 moves pier of moving open, including：
So that the bottom-sitting type moves the outside draining of ballast water tank water of pier, so as to which the bottom-sitting type moves waterborne put down
Platform can float.
22. according to the method for claim 21, which is characterized in that the buoyancy tube of pier is moved from the bottom-sitting type
Understructure is sprayed water towards water-bed, is floated so that the bottom-sitting type moves pier.
23. the method according to claim 21 or 22, which is characterized in that using the buoyancy tank that can selectively rise and fall on the water
It carries the bottom-sitting type and moves pier.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611235891.4A CN108252286B (en) | 2016-12-28 | 2016-12-28 | Bottom-sitting type water platform and water transportation and installation method thereof |
| PCT/CN2017/070229 WO2018120280A1 (en) | 2016-12-28 | 2017-01-05 | Bottom-supported overwater platform and waterborne transport and mounting method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611235891.4A CN108252286B (en) | 2016-12-28 | 2016-12-28 | Bottom-sitting type water platform and water transportation and installation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108252286A true CN108252286A (en) | 2018-07-06 |
| CN108252286B CN108252286B (en) | 2021-06-01 |
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ID=62710854
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611235891.4A Active CN108252286B (en) | 2016-12-28 | 2016-12-28 | Bottom-sitting type water platform and water transportation and installation method thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108252286B (en) |
| WO (1) | WO2018120280A1 (en) |
Cited By (5)
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| CN109024524A (en) * | 2018-08-02 | 2018-12-18 | 黄建青 | A kind of marine engineering platform |
| CN109050812A (en) * | 2018-10-16 | 2018-12-21 | 罗煜 | A kind of pier |
| CN109178241A (en) * | 2018-09-17 | 2019-01-11 | 广州黄船海洋工程有限公司 | A kind of hull bottom overcomes adsorption capacity spray head and hull bottom large area to overcome absorption Force system |
| CN114737598A (en) * | 2022-05-13 | 2022-07-12 | 中国船舶科学研究中心 | Seabed laboratory is with seat end device at adjustable inclination |
| CN115675769A (en) * | 2022-12-30 | 2023-02-03 | 上海雄程海洋工程股份有限公司 | Bottom-sitting type movable offshore platform and working method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114368456B (en) * | 2021-12-15 | 2023-04-18 | 上海振华重工启东海洋工程股份有限公司 | Process for separating upper floating body and lower floating body of offshore platform |
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| CN115675769A (en) * | 2022-12-30 | 2023-02-03 | 上海雄程海洋工程股份有限公司 | Bottom-sitting type movable offshore platform and working method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018120280A1 (en) | 2018-07-05 |
| CN108252286B (en) | 2021-06-01 |
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