CN106926989B - A kind of combined simple ocean platform and its construction method - Google Patents
A kind of combined simple ocean platform and its construction method Download PDFInfo
- Publication number
- CN106926989B CN106926989B CN201710258165.2A CN201710258165A CN106926989B CN 106926989 B CN106926989 B CN 106926989B CN 201710258165 A CN201710258165 A CN 201710258165A CN 106926989 B CN106926989 B CN 106926989B
- Authority
- CN
- China
- Prior art keywords
- square steel
- steel frame
- piling
- platform
- piling bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
-
- 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
- E02B17/027—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 steel structures
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Revetment (AREA)
Abstract
The invention discloses a kind of combined simple ocean platform and its construction methods, including square steel frame, steel plate, piling bar and top job platform, top job platform is welded by four hollow pillar stands with landing slab, transverse direction is welded between four columns, slanting strut forms space net rack system, the bottom sides of four columns pass through the symmetrical soldering sleeve of steel pipe, four piling bars are first set when construction, based on sleeve first square steel frame hub on four piling bars, strip-shaped hole is then based on to entangle on piling bar steel plate, again second square steel frame hub on four piling bars, then lifting top job platform entangles four piling bar blending bolts based on four casings and fixes, ground is depressed into stable state using seawater weight, thus simple ocean platform is constituted.Carried offshore platform structure is simple, and construction weight is small, and foundation's bottom area is big, using seawater weight to ground carry out preconsolidation, adapt to mud, intertidal zone construction environment, economical and practicability.
Description
Technical field：
The present invention relates to offshore platform structures, and in particular to a kind of combined simple ocean platform and its construction method.
Background technology：
China's Marine shoal, intertidal zone land resource are abundant, and, distribution big with area is concentrated, regional conditions are good, agriculture and animal husbandry fishing
The big feature of industry multi-purpose development potential.Intertidal zone is the important base of aquaculture and developing agricultural production, is exploitation ocean, hair
Open up a treasure of marine industries.
It is often necessary to be used for ocean operation in beach, the simple ocean platform of intertidal zone regional Construction.Beach, intertidal zone
Regional soft soil, bearing capacity is relatively low, and intertidal zone by tidewater fluctuation fluctuating influenced, in one day the high water level duration compared with
It is short, and height of water level is limited, construction environment is poor.
Usually, the foundation pattern of pile foundation or barrel base as the simple ocean platform in intertidal zone can be used.But if
The length of pile foundation is larger with weight, needs large-scale lifting and pile driving equipment, but intertidal zone water level can not for Large Construction ship into
Enter；If using barrel base, since intertidal zone high water level is limited, barrel base is difficult to injection under smaller differential water pressures effect
Sea bed is to projected depth.As it can be seen that the foundation pattern of a kind of adaptation beach of design, intertidal zone construction environment is the simple sea in mud area
One of the key technology of foreign platform.
Although beach, intertidal zone area are mostly mud, muck soil, bearing capacity is relatively low, if the area on basis is sufficiently large,
It even is assemblied to form basis with plurality of steel plates, and carries out certain preconsolidation to substrate mud, can also ocean platform be made to meet
Deformation and stability requirement.As it can be seen that it is necessary to inquire into the simple offshore platform structure pattern and its construction method that adapt to mud area,
Promote the innovation and progress of the prior art.
Invention content：
In order to make up the deficiency of prior art problem, the object of the present invention is to provide a kind of combined simple ocean platform and
Its construction method carries out preloading, easy construction using the base form of stake and steel plate combination, and using seawater weight.
Technical scheme is as follows：
Combined simple ocean platform, which is characterized in that including two square steel frames, steel plate, piling bar and top operation horizontal
Platform and the specified marine site of design it is vertical squeeze into four piling bars, be inserted in successively on four piling bars first square steel frame, steel plate,
Second square steel frame, four piling bar upper ends stretch out second square steel frame and are equipped with top job platform.
The combined simple ocean platform, which is characterized in that the square steel frame is by orthogonal more sides
Steel is crisscross to be welded latticed, whole square shape, inside it symmetrically, uniform four sleeves of welding, four
A sleeve line also square shape also carries out oblique be welded to connect between the sleeve of two diagonal positions with square steel.
The combined simple ocean platform, which is characterized in that the top job platform is by four columns and puts down
Platen is formed by welding, and four columns are distributed in four inflection points of square and longitudinally erect, and are welded between adjacent two in four columns
There is lateral, oblique strut Special composition rack system, the bottom of four columns is welded with the expansion board of hollow, each column bottom
Side is symmetrically welded with casing by steel pipe, and sleeve side walls are welded and fixed with expansion board.
The combined simple ocean platform, which is characterized in that four cannula centers on the top job platform
Away from away from equal, casing inner diameter is equal with the internal diameter of sleeve with four bushing cores on square steel frame, casing inner diameter is more than outside piling bar
1 ~ 2cm of diameter.
The combined simple ocean platform, which is characterized in that the steel plate has two pieces, and two pieces are oppositely arranged laying
Between first square steel frame and second square steel frame, bar shaped hole width is slightly larger than piling bar outer diameter on steel plate, and strip-shaped hole is long
Degree more than the three times of piling bar outer diameter more than, on every block of steel plate two strip-shaped hole centre-to-centre spacing in two neighboring sleeve on square steel frame
The heart is away from equal.
A kind of construction method of combined simple ocean platform, which is characterized in that include the following steps：
1）, squeeze into four piling bars：
According to design parameter, the specified marine site of design it is vertical squeeze into four piling bars, finally make the center of four piling bars
Meet design requirement away from, parameters such as verticality, embedded depth；
2）, smooth sea bed：
It is smooth more than the sea bed progress within the scope of square steel frame outer profile to four piling bar peripheries, make the sea in smooth range
Bed soil body maximum height difference is less than 10cm；
3）, first square steel frame entangle piling bar：
Lift by crane first square steel frame, make four on square steel frame sleeves entangle corresponding four piling bars and sink until
Contact sea bed；
4）, steel plate entangle piling bar：
It lifts by crane two blocks of steel plates one by one successively, so that two on steel plate strip-shaped holes is entangled two adjacent piling bars and sink and be pressed in
On first square steel frame；
5）, second square steel frame entangle piling bar：
Second square steel frame is lifted by crane, so that four on square steel frame sleeves is entangled corresponding four piling bars and sinks and be pressed in
On steel plate；
6）, connection top job platform：
Lifting top job platform is simultaneously sunk down at pile foundation position, and four casings of top job platform is made to entangle four
Piling bar sinks and is pressed on second square steel frame, blending bolt fix piling bar on bolt hole, realize top job platform with
Interconnection between piling bar；
7）, water tank precompressed ocean platform：
On the landing slab of top job platform uniformly, symmetrically place water tank, it is gradually symmetrical with water pump extracting seawater
Each water tank is filled up, ocean platform is made to compress sea bed to stable state along piling bar under water tank gravity；
8）, remove water tank, complete construction：
The seabed soil precompressed of ocean platform bottom meets design requirement and after ocean platform reaches stable state, gradually right
The removal water tank of title, and necessary detection and verification are carried out to simple ocean platform, it is finally completed the construction of simple ocean platform.
The beneficial effects of the invention are as follows：
1, each component of the present invention is independent from each other, this way to break the whole up into parts make the weight of each independent component compared with
It is small, reduce to operation on the sea transport with lifting and other construction equipments requirement, adapt to mud, intertidal zone construction ring
Border；
2, the connection type between each component of the present invention is simple, the connection method of no complexity and construction requirement, if needing from now on
Removal effect can be completed according to the opposite step of installation method in dismounting, easy to operate, easy for construction；
3, the present invention is formed by square steel frame and steel plate combination, very big with seabed soil contact area, can reach flat
Twice or more of platen area adapts to muddy sea bed geological conditions, and makes simply, easy for construction, is a kind of easy, real
With, economic design scheme；
4, in work progress of the present invention, serial water tank and extracting seawater filling are placed on landing slab, utilizes seawater weight
Preconsolidation is carried out to the foundation soil body of ocean platform, so that the intensity of foundation soil body is met requirement with settlement after construction, utilizes
Offshore platform structure itself carries out seabed foundations processing, economical, practicability and reasonability.
Description of the drawings：
Fig. 1 is the square steel circuit theory schematic diagram of the present invention.
Fig. 2 is the stress steel plate structure schematic diagram of the present invention.
Fig. 3 is the top job platform vertical view of the present invention.
Fig. 4 is the top job platform upward view of the present invention.
Fig. 5 is that four piling bars construction of the present invention finishes schematic diagram.
Fig. 6 is that first square steel frame of the present invention is inserted in piling bar schematic diagram.
Fig. 7 is that the stress steel plate of the present invention is inserted in piling bar schematic diagram.
Fig. 8 is that second square steel frame of the present invention is inserted in piling bar schematic diagram.
Fig. 9 is that the top job platform of the present invention is inserted in piling bar schematic diagram.
Figure 10 is that the water tank of the present invention assists ocean platform to be pressed into sea bed schematic diagram.
Figure 11 is that the Offshore Platform Construction of the present invention finishes three dimensional structure diagram.
Figure 12 is that the Offshore Platform Construction of the present invention finishes front view.
Reference sign：1, square steel frame；2, sleeve；3, steel plate；4, strip-shaped hole；5, column；6, landing slab；7, it covers
Pipe；8, expansion board；9, piling bar；10, taper pile top；11, bolt hole；12, bolt；13, water tank；A, sea level；B, sea bed face；
C, Compression Settlement amount.
Specific implementation mode：
Referring to attached drawing：
A kind of combined simple ocean platform, including square steel frame 1, steel plate 3, piling bar 9 and top job platform, top are made
Industry platform is welded by four hollow pillar stands 5 with landing slab 6, and lateral, slanting strut is welded between four columns 5 and is formed
Space net rack system, by the symmetrical soldering sleeve 7 of steel pipe, when construction, first sets four piling bars for the bottom sides of four columns 5
9, first square steel frame 1 is sleeved on four piling bars 9 based on sleeve 2, strip-shaped hole 4 is then based on and steel plate 3 is entangled four steel
Stake 9 is simultaneously pressed on first square steel frame 1, then second square steel frame 1 is sleeved on four piling bars 9 and is pressed in steel based on sleeve 2
On plate 3, then lifts by crane top job platform and based on four casings 7 entangle four piling bars 9 and be pressed on second square steel frame 1 and be used in combination
Bolt is fixed, and seabed foundations are depressed into stable state using seawater weight, thus constitute simple ocean platform.
Square steel frame 1 is welded by orthogonal more square steel, whole square shape, inside it symmetrically,
Uniformly four sleeves 2 of welding, the lines of four sleeves 2 also square shape are also used between the sleeve 2 of two diagonal positions
Square steel progress is oblique to be welded to connect, as shown in Figure 1.
The upper and lower surface of square steel frame 1 is plane, can be in close contact with steel plate 3.Carry makes in simple ocean platform altogether
With two square steel frames 1, steel plate 3 is added in basis of formation bottom plate between two square steel frames 1, and ocean platform load passes through steel plate 3
Pass to sea bed.Square steel frame 1 plays the role of constraint, control to steel plate 3, and upper load is uniformly passed by square steel frame 1
Steel plate 3 is passed, square steel frame 1 makes steel plate 3, and stress is substantially uniform everywhere, plays the role of load diffusion.
Since the bearing capacity of mud, muck soil is relatively low, therefore square steel frame 1 and 3 size of steel plate can be increased, reach increase base
The purpose of floor space.Usually, the area of square steel frame 1 can reach twice or more of 6 area of landing slab.Square steel frame 1 and steel
The base form and seabed soil contact area that the combination of plate 3 is formed are very big, adapt to muddy sea bed geological conditions, and make
Simply, easy for construction, it is a kind of easy, practical design scheme.
Top job platform is welded by four columns 5 and landing slab 6, the composition square shape of four columns 5, four
It is welded with lateral, slanting strut between column 5 and forms space net rack system, the bottom of four columns 5 is welded with closed mouth
Font expansion board 8, the bottom sides of each column 5 are by the symmetrical soldering sleeve 7 of steel pipe, as shown in Figure 3 and Figure 4.
One circle expansion board 8 of setting, is to increase the contact of top job platform and square steel frame 1 on the job platform of top
Area enables upper load effectively to be diffused on steel plate 3 by square steel frame 1, avoids stress concentration and generates excessive deformation.
The distance between central axis of four casings 7 and four 2 centers of sleeve on square steel frame 1 on the job platform of top
The distance between axis is equal, and the inner hollow diameter of casing 7 is equal with the inner hollow diameter of sleeve 2.Finally, four casings 7 and four
Sleeve 2 is sleeved on piling bar 9, therefore casing 7 needs unanimously with 2 position relationship of sleeve.
The internal diameter of casing 7 is more than 91 ~ 2cm of outer diameter of piling bar, on steel plate 3 width of strip-shaped hole 4 slightly larger than piling bar 9 outer diameter,
The length of strip-shaped hole 4 is more than the three times of 9 outer diameter of piling bar or more, the distance between two 4 central points of strip-shaped hole and square steel on steel plate 3
The distance between 2 central axis of two neighboring sleeve is equal on frame 1.
Two strip-shaped holes 4 are set altogether on one block of steel plate 3, and two pieces of 3 assembly of steel plate get up that square steel frame 1 can be covered with, such as Fig. 7
It is shown.The length of strip-shaped hole 4 is more than the three times of 9 outer diameter of piling bar or more, is that steel plate 3 is sleeved on piling bar 9 for convenience.
Verticality in four piling bars 9 is met the requirements, can only after square steel frame 1 is sleeved on piling bar 9 with steel plate 3
Sedimentation straight down occurs along piling bar 9, without the displacement of occurred level direction.That is 9 other side's steel frame 1 of piling bar and steel plate 3
Play the role of positioning, constraint and control, piling bar 9 itself does not undertake the vertical load of ocean platform.Therefore the section ruler of piling bar 9
It is very little need not be too big, as long as it can be squeezed into keeps stability under outer load action in closely knit soil layer.
The horizontal loading that ocean platform is subject to is common by the structural system that four piling bars 9, square steel frame 1 and steel plate 3 form
It undertakes, therefore piling bar 9 need to have enough embedded depths, its verticality and stability can be maintained under greater level load action.
Piling bar 9, square steel frame 1, top job platform are formed by welded steel, each component, weld seam and integrally-built
Intensity should meet the effect demand of combined load under complex working condition without surrendering, each component should meet stress concentration need and
The excessive deformation allowed more than specification does not occur.
A kind of construction method of combined simple ocean platform, which is characterized in that include the following steps：
1）, squeeze into four piling bars：
According to design parameter, the specified marine site of design it is vertical squeeze into four piling bars 9, finally make in four piling bars 9
The heart meets design requirement away from, parameters such as verticality, embedded depth, as shown in Figure 5.
The distance between the central axis and square steel frame 1 of the distance between four 9 central axis of piling bar, four casings 7
The distance between 2 central axis of upper four sleeves is equal, i.e., square steel frame 1, which is based on four sleeves 2, can be sleeved on four piling bars 9
Sea bed is slid into, top job platform can be sleeved on four piling bars 9 based on casing 7 and slide into sea bed.
2）, smooth sea bed：
It is smooth more than the sea bed progress within the scope of 1 outer profile of square steel frame to four 9 peripheries of piling bar, make in smooth range
Seabed soil maximum height difference is less than 10cm.
Follow-up square steel frame 1, steel plate 3 are sleeved on four piling bars 9 and contact sea bed, if sea bed surface irregularity, height difference mistake
Greatly, the sinking of steel plate 3 can be caused to generate inclination and torsion.Therefore it is smooth to sea bed progress, be conducive to the stabilization for improving ocean platform
Property.
3）, first square steel frame entangle piling bar：
First square steel frame 1 is lifted by crane, so that four on square steel frame 1 sleeves 2 is entangled corresponding four piling bars 9 and sinks
Until contact sea bed, as shown in Figure 6.
Since sleeve 2 has certain length, sinking along piling bar 9, the verticality in piling bar 9 is met the requirements,
Vertical Settlement can only occurs in it, without generating horizontal displacement.
The effect of first square steel frame 1 is：Uniform sedimentation occurs downwards for square steel plate 3 thereon with control for constraint, maintains
Steel plate 3 after load action by being still in a horizontal state.
4）, steel plate entangle piling bar：
It lifts by crane two blocks of steel plates 3 one by one successively, so that two on steel plate 3 strip-shaped holes 4 is entangled two adjacent piling bars 9 and sink simultaneously
It is pressed on first square steel frame 1, as shown in Figure 7.
The area that two blocks of steel plates 3 are combined is the outer profile area of square steel frame 1.The effect of steel plate 3 is that ocean is put down
The upper load of platform reaches the seabed soil of larger area up.Since the area of steel plate 3 can use higher value so that 3 bottom of steel plate
The base pressure of portion's seabed soil is smaller, adapts to the spies that seabed soils intensity is relatively low, compressibility is larger such as mud, muck soil
Property.
5）, second square steel frame entangle piling bar：
Second square steel frame 1 is lifted by crane, so that four on square steel frame 1 sleeves 2 is entangled corresponding four piling bars 9 and sinks simultaneously
It is pressed on steel plate 3, as shown in Figure 8.
The effect of second square steel frame 1 is：The load that ocean platform is subject to effectively, is uniformly passed to steel plate 3, is kept away
It is excessive and inhomogeneous deformation occurs to exempt from 3 local pressure of steel plate.
6）, connection top job platform：
Lifting top job platform is simultaneously sunk down at pile foundation position, and four casings 7 of top job platform is made to entangle four
Root piling bar 9 sinks and is pressed on second square steel frame 1, and blending bolt fixes the bolt hole on piling bar 9, realizes top operation horizontal
Interconnection between platform and piling bar, as shown in Figure 9.
The expansion board 8 of top job platform is to be in close contact with the square steel frame 1 immediately below it, due to square steel frame 1
With enough intensity and rigidity, the load that expansion board 8 passes over effectively, can be uniformly passed to the steel plate 3 of lower section,
Realize effective diffusion of stress.
Under the effect of follow-up working load, top job platform is pressed on square steel frame, therefore spiral shell in the bolt hole on piling bar 9
Bolt only plays the role of bolt admittedly, prevents the separation between top job platform and piling bar 9 in special circumstances and falls off.Top operation horizontal
The horizontal loading that platform is subject to will pass to piling bar 9 by casing 7, therefore casing 7 should have enough intensity and rigidity, can bear
The effect of combined load is without buckling and deformation under complex working condition.
In the case where four 9 verticalities of piling bar are met the requirements, square steel frame 1, steel plate 3 are with top job platform along four
The vertical compressing seabed soil of root piling bar 9 so that square steel frame 1, steel plate 3 and top job platform can only occur Vertical Settlement and
Not occurred level displacement, piling bar 9 play the role of guiding, constraint, controlling party steel frame 1, steel plate 3 and top job platform.Vertically
Load passes to sea bed by steel plate 3, and piling bar 9 itself does not undertake vertical load.
7）, water tank precompressed ocean platform：
Uniform on the landing slab 6 of top job platform, symmetrical placement water tank 13, it is gradually symmetrical with water pump extracting seawater
Fill up each water tank 13, so that ocean platform is compressed sea bed to stable state along piling bar 9 under water tank gravity.
The density of seawater is generally 1.025g/cm3, i.e. 1m3Seawater weight 1t or so.It is filled if a fairly large number of water tank is accumulative
Reach 10m after water3, then can apply the vertical load of 10t to seabed soil；If water tank adds up water-filling 15m3, then seabed soil can be given
Apply the vertical load of 15t；If water tank adds up water-filling 20m3, then can apply the vertical load of 20t to seabed soil.Water tank is general
It is made of plastics, expense is relatively low, can recycle.As it can be seen that the extracting seawater of adaptation to local conditions carries out precompressed to seabed soil
Consolidation is a kind of cheap, efficient construction method.Particularly, it is more than subsequently to use lotus that water tank total weight can be made in loading procedure
It carries, makes no longer to generate Vertical Settlement during follow-up ocean platform use, improve the overall stability of ocean platform.
Water tank water-filling symmetrical along the central axes of landing slab 6, uniform should be carried out, and avoid generating uneven load.And water
Case itself should have enough intensity, and when multilayer water tank is laminated, the water tank of bottom should be able to bear upper load without broken
Damage.
Incremental, the slow overall weight for increasing water tank is answered, load loads at different levels and load time is rationally designed, makes
Wait for that seabed soil gradually reduces consolidation during the Slow loading to change from small to big.It should observe constantly, proofread top job platform
The posture of sinking, it is ensured that the verticality that top job platform sinks.If certain inclination occurs for top job platform, can incline at it
Monoclinic phase negative direction applies some water tanks more, and the moment of flexure formed by uneven load can rectify a deviation to tilting ocean platform, from
And ensures the verticality of ocean platform and meet the requirements.
In work progress, the water tank of the bottom should be avoided to be soaked in seawater.If water tank is soaked in seawater, by
Buoyancy counteracts the weight of water tank, it is clear that unfavorable to preconsolidation.
Final load load, that is, water tank total weight can be more than the follow-up working load of the ocean platform, and ocean platform is made to produce
Raw larger Compression Settlement amount C can make no longer to generate Vertical Settlement during ocean platform use, improve sea as shown in figure 12
The overall stability of foreign platform.As it can be seen that the extracting seawater of adaptation to local conditions gives ocean platform to apply vertical load, be it is a kind of cheap,
Efficient construction method.
8）, remove water tank, complete construction：
The seabed soil precompressed of ocean platform bottom meets design requirement and after ocean platform reaches stable state, gradually right
The removal water tank 13 of title, and necessary detection and verification are carried out to simple ocean platform, it is finally completed applying for simple ocean platform
Work.
During removing water tank, the uniformity and symmetry of remaining water tank load should be kept, uneven load can not be generated,
Ocean platform can not be made to generate to tilt and deviate.
The present invention is not limited to above-mentioned specific implementation mode, according to the above, according to the ordinary technical knowledge of this field
And customary means, under the premise of not departing from above-mentioned basic fundamental thought of the invention, the present invention can also make other diversified forms
Equivalent modifications, replacement or change, be within the scope of the present invention.
Claims (4)
1. a kind of combined simple ocean platform, which is characterized in that including two square steel frames, steel plate, piling bar and top operation
Platform and the specified marine site of design it is vertical squeeze into four piling bars, first square steel frame, steel are inserted on four piling bars successively
Plate, second square steel frame, four piling bar upper ends stretch out second square steel frame and are equipped with top job platform；The side
Steel frame is right inside it by crisscross latticed, the whole square shape that is welded of orthogonal more square steel
Claim, uniform four sleeves of welding, four sleeve lines also square shape, is also used between the sleeve of two diagonal positions
Square steel carries out oblique be welded to connect；The top job platform is formed by welding by four columns and landing slab, four columns point
It is distributed in four inflection points of square longitudinally to erect, is welded with lateral, oblique strut Special composition in four columns between adjacent two
The bottom of rack system, four columns is welded with the expansion board of hollow, and each column bottom side is symmetrically welded with by steel pipe
Casing, sleeve side walls are welded and fixed with expansion board.
2. combined simple ocean platform according to claim 1, which is characterized in that four on the top job platform
A cannula center is away from away from equal, casing inner diameter is equal with the internal diameter of sleeve, casing inner diameter with four bushing cores on square steel frame
More than 1 ~ 2cm of piling bar outer diameter.
3. combined simple ocean platform according to claim 1, which is characterized in that the steel plate has two pieces, two pieces
It is oppositely arranged and is laid between first square steel frame and second square steel frame, bar shaped hole width is slightly larger than outside piling bar on steel plate
Diameter, strip-shaped hole long axis are more than three times of piling bar outer diameter, two strip-shaped hole centre-to-centre spacing and on square steel frame adjacent two on every block of steel plate
A bushing core is away from equal.
4. a kind of construction method of combined simple ocean platform, which is characterized in that include the following steps：
1）, squeeze into four piling bars：
According to design parameter, the specified marine site of design it is vertical squeeze into four piling bars, finally make centre-to-centre spacing, the lead of four piling bars
Sag, embedded depth meet design requirement；
2）, smooth sea bed：
It is smooth more than the sea bed progress within the scope of square steel frame outer profile to four piling bar peripheries, make the seabed soil in smooth range
Body maximum height difference is less than 10cm；
3）, first square steel frame entangle piling bar：
First square steel frame is lifted by crane, four on square steel frame sleeves is made to entangle corresponding four piling bars and is sunk until contact
Sea bed；
4）, steel plate entangle piling bar：
It lifts by crane two blocks of steel plates one by one successively, so that two on steel plate strip-shaped holes is entangled two adjacent piling bars and sink and be pressed in first
On a square steel frame；
5）, second square steel frame entangle piling bar：
Second square steel frame is lifted by crane, so that four on square steel frame sleeves is entangled corresponding four piling bars and sinks and be pressed in steel plate
On；
6）, connection top job platform：
Lifting top job platform is simultaneously sunk down at pile foundation position, and four casings of top job platform is made to entangle four piling bars
Sink and be pressed on second square steel frame, blending bolt fixes the bolt hole on piling bar, realizes top job platform and piling bar
Between interconnection；
7）, water tank precompressed ocean platform：
On the landing slab of top job platform uniformly, symmetrically place water tank, gradually symmetrically filled up with water pump extracting seawater
Each water tank makes ocean platform compress sea bed to stable state along piling bar under water tank gravity；
8）, remove water tank, complete construction：
The seabed soil precompressed of ocean platform bottom meets design requirement and after ocean platform reaches stable state, gradually symmetrically
Water tank is removed, and necessary detection and verification are carried out to simple ocean platform, is finally completed the construction of simple ocean platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710258165.2A CN106926989B (en) | 2017-04-19 | 2017-04-19 | A kind of combined simple ocean platform and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710258165.2A CN106926989B (en) | 2017-04-19 | 2017-04-19 | A kind of combined simple ocean platform and its construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106926989A CN106926989A (en) | 2017-07-07 |
| CN106926989B true CN106926989B (en) | 2018-10-16 |
Family
ID=59437748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710258165.2A Active CN106926989B (en) | 2017-04-19 | 2017-04-19 | A kind of combined simple ocean platform and its construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106926989B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109368794B (en) * | 2018-09-30 | 2021-10-26 | 杭州江润科技有限公司 | Construction method of aquatic plant composite ecological floating island |
| CN109631845B (en) * | 2018-11-16 | 2023-12-19 | 浙江海洋大学 | Ocean platform inclination observation equipment |
| CN111114711A (en) * | 2019-12-30 | 2020-05-08 | 江苏省水文地质工程地质勘察院 | Offshore exploration platform capable of walking and moving by oneself |
| CN112144562A (en) * | 2020-04-22 | 2020-12-29 | 中国海洋大学 | Pile foundation monitoring device for offshore operation platform |
| CN113638386B (en) * | 2021-08-19 | 2022-09-09 | 中交第三航务工程局有限公司 | Offshore wind power single pile socketed foundation construction is with assembled platform |
| CN114348192B (en) * | 2022-01-13 | 2024-04-26 | 东北石油大学 | Assembled FRP concrete guy cable tower type damping platform and construction method thereof |
| CN114517470A (en) * | 2022-03-09 | 2022-05-20 | 中国建筑工程（香港）有限公司 | Construction method of overwater construction platform |
| CN115772884A (en) * | 2022-12-23 | 2023-03-10 | 大连理工大学 | Hinged fixed photovoltaic platform |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2473128Y (en) * | 2001-02-23 | 2002-01-23 | 胜利石油管理局钻井工艺研究院 | One pile single well oil production platform with seat cushion under water conduct frame |
| RU2347866C2 (en) * | 2007-02-19 | 2009-02-27 | Виктор Ильич Мищевич | Method of constructing process platforms |
| CN201546211U (en) * | 2009-09-28 | 2010-08-11 | 中交第二航务工程勘察设计院有限公司 | Static pressure fixed drilling platform assembled at sea |
| CN102616344A (en) * | 2012-03-22 | 2012-08-01 | 中国海洋石油总公司 | Heavy draught truss type floating platform |
| CN204199261U (en) * | 2014-11-11 | 2015-03-11 | 江苏海王星海洋油气装备有限公司 | Settling type mobile platform |
| CN105059489A (en) * | 2015-07-15 | 2015-11-18 | 中国海洋石油总公司 | Constantly stable offshore nuclear power platform |
| CN205475167U (en) * | 2016-03-23 | 2016-08-17 | 中交第三航务工程勘察设计院有限公司 | Shallow sea territory in situ test survey platform |
| CN206664888U (en) * | 2017-04-19 | 2017-11-24 | 合肥学院 | A kind of combined simple ocean platform |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130075594A (en) * | 2011-12-27 | 2013-07-05 | 현대중공업 주식회사 | Offshore fixed platform using solar energy |
-
2017
- 2017-04-19 CN CN201710258165.2A patent/CN106926989B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2473128Y (en) * | 2001-02-23 | 2002-01-23 | 胜利石油管理局钻井工艺研究院 | One pile single well oil production platform with seat cushion under water conduct frame |
| RU2347866C2 (en) * | 2007-02-19 | 2009-02-27 | Виктор Ильич Мищевич | Method of constructing process platforms |
| CN201546211U (en) * | 2009-09-28 | 2010-08-11 | 中交第二航务工程勘察设计院有限公司 | Static pressure fixed drilling platform assembled at sea |
| CN102616344A (en) * | 2012-03-22 | 2012-08-01 | 中国海洋石油总公司 | Heavy draught truss type floating platform |
| CN204199261U (en) * | 2014-11-11 | 2015-03-11 | 江苏海王星海洋油气装备有限公司 | Settling type mobile platform |
| CN105059489A (en) * | 2015-07-15 | 2015-11-18 | 中国海洋石油总公司 | Constantly stable offshore nuclear power platform |
| CN205475167U (en) * | 2016-03-23 | 2016-08-17 | 中交第三航务工程勘察设计院有限公司 | Shallow sea territory in situ test survey platform |
| CN206664888U (en) * | 2017-04-19 | 2017-11-24 | 合肥学院 | A kind of combined simple ocean platform |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106926989A (en) | 2017-07-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106926989B (en) | A kind of combined simple ocean platform and its construction method | |
| CN107542101B (en) | Construction method of offshore four-buoy-buoyancy tank combined foundation structure | |
| CN102191777B (en) | Steel sheet pile coefferdam structure and topdown construction method thereof | |
| CN106930261A (en) | A kind of simple ocean platform in intertidal zone and its construction method | |
| CN206664888U (en) | A kind of combined simple ocean platform | |
| CN110374820B (en) | Combined type ring cylinder buoyancy tank foundation structure and construction method thereof | |
| CN107630461B (en) | Combined offshore four-buoy buoyancy tank foundation structure and construction method thereof | |
| CN106697189A (en) | Installation method for float-dragging method offshore type ocean booster station | |
| CN103422510A (en) | Steel pipe frame type cofferdam structure and construction method | |
| CN105401577A (en) | Suction type pile shoe suitable for self-lifting platform and mounting method | |
| CN210857255U (en) | Reinforced composite single-pile foundation for offshore wind turbine generator system | |
| CN211172056U (en) | Offshore single-pile foundation with high-pressure jet grouting pile reinforced foundation | |
| CN204608815U (en) | Raft plate gravity offshore wind turbine foundation | |
| CN101392521A (en) | Rock-socketed steel dock structure and construction method thereof | |
| CN103911979A (en) | Four-corner balanced ballasting and lifting method for leveling ship | |
| CN106978817A (en) | A kind of Novel retaining wall based process pattern and a kind of Novel retaining wall | |
| CN202969333U (en) | Steel truss rock-socketed wharf structure | |
| CN106638659A (en) | Towing truss-gravity type combined offshore wind turbine foundation structure and construction method thereof | |
| CN109898536A (en) | Caisson and its installation method with stake holes | |
| CN204000763U (en) | Old tire and concrete block combined type wash away protector | |
| CN206157758U (en) | But towage's truss marine wind turbine foundation structure of gravity type combination | |
| CN103726505B (en) | Offshore wind plant wind turbine foundation | |
| CN202131602U (en) | Steel sheet pile cofferdam structure | |
| CN213709363U (en) | Reservoir assembled layering water intaking head | |
| CN209816899U (en) | Floating pile-stabilizing platform for construction of steel pipe piles of offshore jacket type fan foundation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |