CN106930261A - A kind of simple ocean platform in intertidal zone and its construction method - Google Patents
A kind of simple ocean platform in intertidal zone and its construction method Download PDFInfo
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- CN106930261A CN106930261A CN201710258193.4A CN201710258193A CN106930261A CN 106930261 A CN106930261 A CN 106930261A CN 201710258193 A CN201710258193 A CN 201710258193A CN 106930261 A CN106930261 A CN 106930261A
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- 238000010276 construction Methods 0.000 title claims abstract description 41
- 238000002347 injection Methods 0.000 claims abstract description 14
- 239000007924 injection Substances 0.000 claims abstract description 14
- 238000003466 welding Methods 0.000 claims abstract description 13
- 239000013535 sea water Substances 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 35
- 229910000754 Wrought iron Inorganic materials 0.000 claims description 21
- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
- 238000013461 design Methods 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 5
- 238000005086 pumping Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 239000000284 extract Substances 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 235000000396 iron Nutrition 0.000 claims description 3
- 238000012795 verification Methods 0.000 claims description 3
- 238000005476 soldering Methods 0.000 claims description 2
- 239000002689 soil Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 238000009360 aquaculture Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
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- 238000012938 design process Methods 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
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Classifications
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- 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
- E02B2017/0039—Methods for placing the offshore structure
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- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
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- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a kind of simple ocean platform in intertidal zone and its construction method, including bottom stake bucket combination foundation and upper brace chunk, bottom stake bucket combination foundation includes four barrel bases, four barrel bases are relative two-by-two and are spaced apart, entirety is interconnected to constitute between any two between four barrel bases, each barrel base outer wall top is respectively equipped with a sleeve, and each barrel base top is respectively equipped with locating dowel, an inlet/outlet valve；Upper brace chunk by four root posts with hold platen level with both hands thereon and be formed by welding, four root post outer wall bottoms are provided with the sleeve pipe being engaged with locating dowel；Bottom stake bucket combination foundation and upper brace chunk, during assembling four casing pipe sleeves of upper brace chunk stay portion's barrel base four locating dowels and fixation.Soil rigidity of the present invention is big, and the perpendicularity of barrel base meets requirement automatically, and the weight of each independent component is smaller, constructs simple and convenient, and assists barrel base injection sea bed, economical and practicality using seawater weight.
Description
Technical field：
The present invention relates to offshore platform structure, and in particular to a kind of simple ocean platform in intertidal zone and its construction method.
Background technology：
Intertidal zone refers to tide leaching area or the beach between high tide level and low tide.China's intertidal zone land resource is enriched, and has
The characteristics of area is big, distribution is concentrated, regional conditions are good, farming, animal husbandry and fishery multi-purpose development potential is big.Intertidal zone is aquaculture and hair
The important base of agricultural production is opened up, is exploitation ocean, a treasure of Development of Marine industry.
It is often necessary to build simple ocean platform in intertidal zone be used for ocean operation.Intertidal zone area soft soil, holds
Carry power relatively low, and intertidal zone is risen and fallen by tidewater fluctuation and is influenceed, the high water level duration is shorter in one day, and height of water level has
Limit, construction environment is poor.
Usually, pile foundation or barrel base can be used as the foundation pattern of the simple ocean platform in intertidal zone.But if
The length of pile foundation is larger with weight, it is necessary to large-scale lifting and pile driving equipment, but intertidal zone water level cannot enter for Large Construction ship
Enter；If using barrel base, because intertidal zone high water level is limited, barrel base is difficult to injection under the effect of less differential water pressures
Sea bed is to projected depth.It can be seen that, the foundation pattern for designing a kind of adaptation intertidal zone construction environment is the simple ocean platform in intertidal zone
One of key technology.
But pile foundation is each with barrel base to have the advantage of itself by oneself.Pile foundation can bear larger horizontal bearing capacity, construction
During its verticality be easier to be guaranteed, and have accumulated abundant construction experience；Barrel base belongs to major diameter shallow wide
Basis, it has larger vertical rigidity and vertical bearing capacity, but its horizontal bearing capacity and less stable, and passes through sea bed heavy
During its verticality be difficult to ensure that difficulty of construction is larger.
If pile foundation is combined with barrel base, realize having complementary advantages, rational combination foundation form will be formed.
Existing document discloses the integrated mode of various pile foundations and barrel base, but existing stake barrel combination foundation all kinds of design structures
Type, convenience, feasibility to work progress consider less, also the construction environment of less consideration intertidal zone.
As Chinese patent Authorization Notice No. CN104196053B discloses a kind of barrel base simple flat being removably installed
Platform, barrel base and jacket can separate construction with it is independently installed, it is limited in that：Barrel base sinks vertical during passing through
Degree is difficult to ensure；Heavy rear its upper hollow guide upright post in place that passes through of barrel base may be clogged by mud so that jacket leg is difficult
With in inserting guide upright post；After jacket leg insertion guide upright post, it is in the milk in jacket leg and is interfixed, the connection side
Method is excessively simple, and carries out construction under water, and its construction quality is difficult to obtain effective guarantee, it is possible to cause on during use
Separated between portion's jacket and infrastructure, come off and failure.
It can be seen that, it is necessary to the simple offshore platform structure pattern and its construction method for adapting to intertidal zone are inquired into, is promoted existing
The innovation and progress of technology.
The content of the invention：
In order to make up the deficiency of prior art problem, it is an object of the invention to provide a kind of simple ocean platform in intertidal zone and its apply
Work method, the heavy barrel base that passes through assembles upper brace structure again after first construction stake, and stake bucket combination foundation bearing capacity is big, construction party
Just.
Technical scheme is as follows：
The simple ocean platform in intertidal zone, it is characterised in that including bottom stake bucket combination foundation and upper brace chunk,
The bottom stake bucket combination foundation includes four barrel bases, and barrel base is inverted staving, four barrel bases two
Two is relative and be spaced apart, and is interconnected to constitute entirety, each barrel base outer wall top between four barrel bases between any two
A sleeve is respectively equipped with, each barrel base top is respectively equipped with locating dowel, an inlet/outlet valve；
The upper brace chunk by four root posts with hold platen level with both hands thereon and be formed by welding, four root post outer wall bottoms are provided with and fixed
The sleeve pipe that position post is engaged；
Described bottom stake bucket combination foundation and upper brace chunk, four casing pipe sleeves of upper brace chunk are stayed portion during assembling
Four locating dowels of barrel base are simultaneously locked with locking member.
The simple ocean platform in described intertidal zone, it is characterised in that four of described bottom stake bucket combination foundation are barrel-shaped
Into square shape arrangement, barrel base is inverted staving on basis, and four barrel bases use junction steel plate phase between outer wall two-by-two
Mutually it is welded to connect, each barrel base outer wall top is by one sleeve of longitudinal direction of steel-pipe welding, and four sleeves are right positioned at square
It is on linea angulata and symmetrical；One locating dowel in strap bolt hole of each barrel base welded top, locating dowel eccentric setting；It is each barrel-shaped
Basic upper surface is additionally provided with the inlet/outlet valve of external pumping system, and four inlet/outlet valve positions are symmetrical arranged two-by-two.
The simple ocean platform in described intertidal zone, it is characterised in that described upper brace chunk by four root posts with it is flat
Platen is welded, and four root posts composition square shape, the strut being welded between four root posts laterally, oblique forms space
Rack system, the bottom welding of four root posts has expansion board, and expansion board is plate-like, and the symmetrical weldering of steel pipe is passed through on each column outer wall
Female connector pipe；Horizontal, oblique strut Special composition rack system is welded between four root posts.
The simple ocean platform in described intertidal zone, it is characterised in that the center of the described root post of upper brace chunk four
The distance between axis is equal with the distance between four barrel base central axis, on upper brace chunk in four sleeve pipes
The distance between heart axis is equal with the distance between four locating dowel central axis on barrel base.
The simple ocean platform in described intertidal zone, it is characterised in that described piling bar end is provided with taper pile top, outside piling bar
Wall near upper end be provided with it is uniform, symmetrical be provided with the trapezoidal shape stake wing, the top of each stake wing is horizontal and at grade, steel
Stake upper surface center is provided with the plug-in opening coordinated with auxiliary rod iron inserting.
The simple ocean platform in described intertidal zone, it is characterised in that described auxiliary rod iron lower end is provided with bottom overstriking section,
Bottom overstriking section lower end is provided with the tenon coordinated with piling bar inserting.
The simple ocean platform in described intertidal zone, it is characterised in that casing inner diameter is more than on described upper brace chunk
Barrel base upper positioning column external diameter, the internal diameter of barrel base upper bush is more than 1 ~ 2cm of piling bar external diameter.
A kind of construction method of the simple ocean platform in intertidal zone, it is characterised in that comprise the following steps：
1）, squeeze into four piling bars：
According to design parameter, the marine site specified in design it is vertical squeeze into four piling bars, finally make four centre-to-centre spacing of piling bar, lead
The parameters such as sag, embedded depth meet design requirement；
2）, be inserted in barrel base：
In plug-in opening the tenon insertion piling bar of auxiliary rod iron, lifting barrel base makes four sleeves entangle four auxiliary rod irons
And gradually sink, barrel base is slowly sunk to marine along auxiliary rod iron until contact sea bed and being enclosed within the upper of four piling bars
Portion；
3）, connection upper brace chunk：
Lifting upper brace chunk is simultaneously sunk down at barrel base position, four sleeve pipes of upper brace chunk is entangled barrel-shaped base
Four locating dowels on plinth, the bolt hole on blending bolt stationary positioned post realizes the phase of upper brace chunk and barrel base
Mutually fix and be connected；
4）, barrel base injection sea bed：
The pumping system opened on each barrel base inlet/outlet valve of connection extracts negative pressure, and as needed in upper brace chunk
Uniform on landing slab, symmetrical placement water tank, each water tank is filled up with water pump extracting seawater, make barrel base deadweight, negative pressure and
Along piling bar injection sea bed to projected depth under water tank Action of Gravity Field；
5）, remove auxiliary rod iron：
Taken out from four piling bars, remove auxiliary rod iron, and necessary detection and verification are carried out to simple ocean platform, it is final complete
Into the construction of simple ocean platform.
The beneficial effects of the invention are as follows：
1st, at a certain distance from four piling bars of the invention are symmetrically located on the outside of barrel base, the distance between each stake is relatively
Greatly, the pile-bucket foundation entirety lateral deformation stiffness after combination is big, can bear larger horizontal loading, makes the stability of ocean platform big
It is big to improve；
2nd, barrel base of the present invention entangles piling bar based on sleeve, and it can only occur Vertical Settlement without occurred level sidesway,
As long as four perpendicularity of piling bar meet requiring, then the perpendicularity of barrel base meets requirement automatically, and without follow-up leveling
With correction.The perpendicularity problem during passing through that barrel base is sunk is converted into the perpendicularity problem of piling bar, positions the vertical of piling bar
Degree is easier to realize, so as to reduce the difficulty of construction of barrel base on the whole；
3rd, between pile foundation of the present invention, barrel base and upper brace chunk it is separate, this way for breaking the whole up into parts
So that the weight of each independent component is smaller, transport and lifting and the requirement of other construction equipments to operation on the sea are reduced, fitted
Answer the construction environment of intertidal zone；
4th, between upper brace chunk of the present invention and barrel base, the connected mode between bucket base and pile foundation is simple, without complicated
Connecting elements and construction requirement.As long as the sleeve of barrel base can entangle piling bar and certain depth of sinking, then bucket base and pile foundation
Can not possibly depart from, can jointly resist vertical load and lateral load；
5th, in work progress of the present invention, it is contemplated that intertidal zone water level is relatively low to be only difficult to barrel-shaped base by barrel base external and internal pressure difference
Plinth injection is placed serial water tank on landing slab and extracting seawater is filled to projected depth, and bucket is assisted using seawater weight
Shape basis injection sea bed, economical, practicality and reasonability；
If the 6, the present invention needs to dismantle, remove the simple ocean platform that the present invention is carried from now on, it is after removing the bolt in locating dowel
The lifting of upper brace chunk can be removed, during barrel base is removed, because barrel base is only enclosed within pile foundation, stake
Floating without hindrance effect of the basis to barrel base, easy construction, beneficial to simple ocean platform dismounting with recycle.
Brief description of the drawings：
Fig. 1 is four barrels of commbined foundations top views of the invention.
Fig. 2 is four barrels of commbined foundations upward views of the invention.
Fig. 3 is upper brace chunk top view of the invention.
Fig. 4 is upper brace chunk upward view of the invention.
Fig. 5 is steel pile structure schematic diagram of the invention.
Fig. 6 is construction auxiliary rod iron structural representation of the invention.
Fig. 7 finishes schematic diagram for four piling bar constructions of the present invention.
Fig. 8 is that four barrels of commbined foundations of the invention are inserted in piling bar schematic diagram.
Fig. 9 is inserted in barrel base schematic diagram for upper brace chunk of the present invention.
Figure 10 is that water tank of the present invention aids in barrel base injection sea bed schematic diagram.
Figure 11 finishes schematic diagram for Offshore Platform Construction of the present invention.
Description of reference numerals：1st, staving；2nd, inlet/outlet valve；3rd, steel pipe；4th, sleeve；5th, junction steel plate；6th, locating dowel；7th, spiral shell
Keyhole；8th, column；9th, expansion board；10th, sleeve pipe；11st, landing slab；12nd, piling bar；13rd, taper pile top；14th, the stake wing；15th, plug-in opening；
16th, rod iron is aided in；17th, bottom overstriking section；18th, tenon；19th, water tank；A, sea level；B, sea bed face.
Specific embodiment：
Referring to accompanying drawing：
A kind of simple ocean platform in intertidal zone, including bottom stake bucket combination foundation and upper brace chunk, four barrel bases it
Between be welded to each other connection with junction steel plate 5, the top barrel side of each barrel base is based on symmetrical one sleeve 4 of welding of steel pipe 3, respectively
One locating dowel in strap bolt hole 76 of welded top of barrel base, four barrel bases and four piling bars being enclosed within sleeve 4
12 collectively constitute stake bucket combination foundation, and upper brace chunk is welded by four root posts 8 and landing slab 11, four root posts 8 it
Between be welded with laterally, oblique strut form space net rack system, the bottom sides of four root posts 8 are by the symmetrical welding of steel pipe
Sleeve pipe 10, entangles four sleeve pipes 10 of upper brace chunk during assembling four blending bolts of locating dowel 6 of bottom barrel base
（Connector）It is fixed, thus constitute simple ocean platform.
Four barrel bases are arranged into square shape, are welded to each other connection with junction steel plate 5 between four barrel bases, respectively
The top barrel side of barrel base is based on symmetrical one sleeve 4 of welding of steel pipe 3, and sleeve 4 is placed exactly in the right of square profile
On linea angulata, one locating dowel in strap bolt hole 76 of welded top of each barrel base, but locating dowel 6 is not in the top of staving 1
On heart axle, the top surface of staving 1 is provided with inlet/outlet valve 2, and four after welding barrel commbined foundations are in integrally symmetry status, such as Fig. 1 and Fig. 2
It is shown.
Sleeve 4 on barrel base will be enclosed within piling bar 12 so that four barrel bases are collectively forming with four piling bars 12
Stake bucket combination foundation.One end of steel pipe 3 is weldingly connected with the top barrel side of staving 1, and the other end and the sleeve 4 of steel pipe 3 are weldingly connected,
Each weld is provided with ribbed stiffener.Four sleeves 4 are in the periphery of barrel base, its on the closure inside staving without influence, and
There is a certain distance with barrel base central shaft so that the distance of four piling bars 12 is relatively large from now on, improve overall anti-side
Move rigidity.Four barrels of commbined foundations are in integrally symmetry status, and four barrel bases are arranged into square shape, four centers of sleeve 4
Axle line also square shape.
Upper brace chunk is welded by four root posts 8 and landing slab 11, the composition square shape of four root post 8, four
The strut being welded between root post 8 laterally, oblique forms space net rack system, and the bottom welding of four root posts 8 has expansion board
9, the bottom sides of each column 8 pass through the symmetrical soldering sleeve 10 of steel pipe, as shown in Figure 3 and Figure 4.
The bottom welding of four root posts 8 has expansion board 9, is in order that upper brace load can reach bigger foundation area
Up, it is to avoid stress concentration and produce excessive deformation.The distance between central axis of the root post 8 of upper brace chunk four and four
The distance between individual barrel base central axis is equal, the load of upper brace chunk is reached the end face center axle of barrel base
Place, it is to avoid basic stress produces eccentric.The distance between four central axis of sleeve pipe 10 and barrel-shaped base on upper brace chunk
The distance between four central axis of locating dowel 6 are equal on plinth so that four sleeve pipes 10 can just be enclosed within four locating dowels 6
On, realize the effective connection between upper brace chunk and barrel base.
The bottom of piling bar 12 sets taper pile top 13, and piling bar 12 is uniform, symmetrical near upper end to be provided with the trapezoidal shape stake wing 14,
The top of each stake wing 14 is horizontal and at grade, and the plug-in opening of certain depth is set at the upper end end face center of piling bar 12
15, as shown in Figure 5.
The wing 14 is uniform, symmetrical is welded at the top same position of piling bar 12 for the stake of multiple trapezoidal shapes, and the stake wing 14 is near stake top
The top surface of side is horizontal and at grade.After barrel base sinking certain depth in combination foundation, its sleeve 4 will
It is pressed on a wing 14, i.e. the stake wing 14 can prevent the further sinking of barrel base, so as to part vertical load is passed to piling bar
12 so that barrel base and piling bar shared vertical load, realize the efficient combination of stake and barrel base.
The position of the reasonable computation stake wing 14 is answered in design process.If the position of the stake wing 14 is deeper, barrel base undertakes larger
After vertical load occurs fully sedimentation, sleeve 4 is still touched less than the stake wing 14, then vertical load cannot pass to piling bar 12 so that
The vertical bearing capacity utilization not yet in effect of piling bar 12；If the position of the stake wing 14 is shallower, it is smaller that barrel base undertakes vertical load generation
After sedimentation, sleeve 4 is pressed against on a wing 14, vertical load major part is passed to piling bar 12, causes the vertical of barrel base to hold
Power is carried to underuse.More rational situation is that barrel base is utilized effectively with the vertical bearing capacity of piling bar 12, both
Vertical load distribution it is reasonable, the load that shared upper brace is passed over.
The internal diameter of sleeve pipe 10 is slightly larger than the external diameter of barrel base upper positioning column 6, convenient construction process on upper brace chunk
Assembling between upper platform chunk and barrel base.The internal diameter of barrel base upper bush 4 is more than the 1 ~ 2cm of external diameter of piling bar 12,
So that work progress middle sleeve 4 is easier to entangle piling bar 12.In order to reduce phase mutual friction, it might even be possible to sleeve 4 inwall and
Lubricant is smeared on the upper end outer wall of piling bar 12.
Aid in the bottom of rod iron 16 that bottom overstriking section 17, the gradually transition from fine to coarse of its diameter, and bottom overstriking section are set
17 external diameter is identical with the external diameter of piling bar 12, aids in the bottom of rod iron 16 to set tenon 18, as shown in Figure 6.The diameter of tenon 18
The internal diameter of plug-in opening 15 on piling bar 12 is slightly less than, the length of tenon 18 is slightly less than the depth of plug-in opening 15 on piling bar 12.
Four barrels of combination foundations, piling bar 12, auxiliary rod irons 16 are formed by welded steel, each component, weld seam and overall structure
Intensity should meet the effect demand of combined load under complex working condition without surrendering, each component should meet stress concentration needs
Without the excessive deformation for occurring to be allowed more than specification.
A kind of construction method of the simple ocean platform in intertidal zone, is described in detail as follows：
1）, squeeze into four piling bars 12：
According to design parameter, the marine site specified in design it is vertical squeeze into four piling bars 12, finally make four centers of piling bar 12
Meet design requirement away from, the parameter such as verticality, embedded depth, as shown in Figure 7.
Centre-to-centre spacing between four piling bars 12 is equal with the centre-to-centre spacing between four sleeves 4 on barrel base.Only four
The perpendicularity of piling bar 12 meets requirement with spacing, just can ensure that the perpendicularity of follow-up barrel base meets and requires.This technology is really
The perpendicularity requirement for protecting barrel base is converted into the perpendicularity requirement of piling bar, and the perpendicularity of piling bar is easier to be protected, and
All kinds of piling bar construction experiences are enriched, and the purpose of barrel base difficulty of construction is reduced so as to reach.
2）, be inserted in barrel base：
During the tenon 18 of auxiliary rod iron 16 is inserted the plug-in opening 15 of piling bar 12, lifting barrel base makes four sleeves 4 entangle four
Root aids in rod iron 16 and gradually sinks, and barrel base is slowly sunk to marine along auxiliary rod iron 16 until contacting sea bed and being enclosed within
Four tops of piling bar 12, as shown in Figure 8.
The heavy of barrel base is passed through during attitude should be able to resist work progress by the guiding of piling bar 12 with constraint, therefore piling bar 12
Without there is sidesway and incline in all kinds of loads.The intensity of barrel base and each component of piling bar should be able to bear to combine lotus under complex working condition
The effect of load and without flexing and deformation.
3）, connection upper brace chunk：
Lifting upper brace chunk simultaneously sink down at barrel base position, make upper brace chunk four sleeve pipes 10 entangle it is barrel-shaped
On the basis of four locating dowels 6, the bolt hole 7 on blending bolt stationary positioned post 6 realizes upper brace chunk and barrel base
Interfix and be connected, as shown in Figure 9.
Under the effect of follow-up working load, upper brace chunk is pressed on barrel base, therefore bolt is only played in bolt hole 7
Bolt is acted on admittedly, prevents from particular cases being separated between upper brace chunk and barrel base and being come off.Upper brace group from now on
The horizontal loading that block is subject to, will pass to barrel base by four locating dowels 6, therefore sleeve pipe 10 all should have foot with locating dowel 6
Enough intensity and rigidity, can bear combined load under complex working condition effect and without flexing and deformation.
4）, barrel base injection sea bed：
The pumping system opened on each barrel base inlet/outlet valve 2 of connection extracts negative pressure, and as needed in upper brace chunk
Landing slab 11 on uniform, symmetrical placement water tank 19, fill up each water tank 19 with water pump extracting seawater, make barrel base from
Along the injection sea bed of piling bar 12 to projected depth under weight, negative pressure and water tank Action of Gravity Field, as shown in Figure 10.
In the case where four perpendicularity of piling bar 12 meet and require, barrel base along four injection sea beds of piling bar 12, its
Perpendicularity meets requirement automatically, work progress without leveling with check repeatedly.Work progress is greatly simplified, and difficulty of construction drops significantly
It is low, Potential Working Time For Operation At Sea is shortened, so as to reduce construction cost.
In view of the shallower actual conditions of intertidal zone water level, barrel base is difficult to heavy passing through to design deeply under suction function
Degree, places serial water tank on landing slab and extracting seawater is filled, and barrel base injection sea bed is assisted using seawater weight,
Economical, practicality and reasonability.Water tank water-filling should be carried out along symmetrical at the axis of landing slab 11, uniform, it is to avoid
Produce uneven load.And water tank should have enough intensity in itself, when multilayer water tank is laminated, the water tank of bottom should be able to bear
Upper load is damaged without occurring.
The density of seawater is generally 1.025g/cm3, i.e. 1m3Seawater weight 1t or so.If a fairly large number of water tank fills jointly
10m is reached after water3, then the vertical load of 10t can be applied to barrel base, if the common water-filling 20m of water tank3, then barrel base can be given
Apply the vertical load of 20t.Water tank is typically made of plastics, and its expense is relatively low, can recycle.It can be seen that, suit measures to local conditions
Extracting seawater applies vertical load to barrel base, is a kind of cheap, efficient construction method.Especially, can in loading procedure
Water tank gross weight is exceeded follow-up working load, make no longer to produce Vertical Settlement during follow-up ocean platform use, improve sea
The resistance to overturning of foreign platform.
5）, remove auxiliary rod iron 16：
Taken out from four piling bars 12, remove auxiliary rod iron 16, and necessary detection and verification are carried out to simple ocean platform, most
The construction of simple ocean platform is completed eventually.
Under the effect of follow-up working load, barrel base due to by four constraints of piling bar and limitation, as long as piling bar
Embedded depth is larger, rigidity is higher, and the perpendicularity of barrel base is remained to access and is effectively ensured, it is ensured that basic top ocean platform
Function it is normal.
A kind of simple ocean platform in intertidal zone that is carried of the present invention, pile-bucket foundation entirety lateral deformation stiffness is big, can bear compared with
Big horizontal loading, greatly improves the stability of ocean platform；Barrel base entangles piling bar based on sleeve, and it can only send out
Raw Vertical Settlement is without occurred level sidesway, as long as four perpendicularity of piling bars meet requiring, then the perpendicularity of barrel base from
It is dynamic to meet requirement, and without follow-up leveling and correction；It is separate between pile foundation, barrel base and upper brace chunk
, this way for breaking the whole up into parts so that the weight of each independent component is smaller, reduce to the transport of operation on the sea and lifting and
The requirement of other construction equipments, adapts to the construction environment of intertidal zone；Between upper brace chunk and barrel base, bucket base and pile foundation
Between connected mode it is simple, without complicated connecting elements and construction requirement；Serial water tank is placed on landing slab and sea is extracted
Water is filled, and barrel base injection sea bed, economical, practicality and reasonability are assisted using seawater weight；Due to bucket
Shape basis is only enclosed within steel pile foundation, and during barrel base is removed, steel pile foundation is without hindrance to the floating of barrel base
Effect, easy construction, beneficial to dismounting and recycle.
The present invention is not limited to above-mentioned specific embodiment, according to the above, according to the ordinary technical knowledge of this area
And customary means, under the premise of above-mentioned basic fundamental thought of the invention is not departed from, the present invention can also make other diversified forms
Equivalent modifications, replace or change, be within the scope of the present invention.
Claims (8)
1. the simple ocean platform in a kind of intertidal zone, it is characterised in that including bottom stake bucket combination foundation and upper brace chunk,
The bottom stake bucket combination foundation includes four barrel bases, and barrel base is inverted staving, four barrel bases two
Two is relative and be spaced apart, and is interconnected to constitute entirety, each barrel base outer wall top between four barrel bases between any two
A sleeve is respectively equipped with, each barrel base top is respectively equipped with locating dowel, an inlet/outlet valve；
The upper brace chunk by four root posts with hold platen level with both hands thereon and be formed by welding, four root post outer wall bottoms are provided with and fixed
The sleeve pipe that position post is engaged；
Described bottom stake bucket combination foundation and upper brace chunk, four casing pipe sleeves of upper brace chunk are stayed portion during assembling
Four locating dowels of barrel base are simultaneously locked with locking member.
2. the simple ocean platform in intertidal zone according to claim 1, it is characterised in that described bottom stake bucket combination foundation
Four barrel bases arranged into square shape, barrel base is inverted staving, and four barrel bases are used between outer wall two-by-two
Junction steel plate is welded to each other connection, and each barrel base outer wall top is by one sleeve of longitudinal direction of steel-pipe welding, four sleeve positions
In on square diagonal and symmetrical；One locating dowel in strap bolt hole of each barrel base welded top, locating dowel is eccentric
Set；Each barrel base upper surface is additionally provided with the inlet/outlet valve of external pumping system, and four inlet/outlet valve positions symmetrically set two-by-two
Put.
3. the simple ocean platform in intertidal zone according to claim 1, it is characterised in that described upper brace chunk is by four
Root post is welded with landing slab, four root posts composition square shape, and horizontal, oblique support is welded between four root posts
Bar forms space net rack system, and the bottom welding of four root posts has expansion board, and expansion board is plate-like, and steel is passed through on each column outer wall
The symmetrical soldering sleeve of pipe；Horizontal, oblique strut Special composition rack system is welded between four root posts.
4. the simple ocean platform in intertidal zone according to claim 1, it is characterised in that described upper brace chunk four
The distance between central axis of column is equal with the distance between four barrel base central axis, four on upper brace chunk
The distance between central axis of individual sleeve pipe is equal with the distance between four locating dowel central axis on barrel base.
5. the simple ocean platform in intertidal zone according to claim 1, it is characterised in that described piling bar end is provided with taper
Pile top, piling bar outer wall near upper end be provided with it is uniform, symmetrical be provided with the trapezoidal shape stake wing, the top of each stake wing is horizontal and same
In one plane, piling bar upper surface center is provided with the plug-in opening coordinated with auxiliary rod iron inserting.
6. the simple ocean platform in intertidal zone according to claim 1, it is characterised in that described auxiliary rod iron lower end is provided with
Bottom overstriking section, bottom overstriking section lower end is provided with the tenon coordinated with piling bar inserting.
7. the simple ocean platform in intertidal zone according to claim 1, it is characterised in that covered on described upper brace chunk
Bore is more than barrel base upper positioning column external diameter, and the internal diameter of barrel base upper bush is more than 1 ~ 2cm of piling bar external diameter.
8. the construction method of the simple ocean platform in a kind of intertidal zone, it is characterised in that comprise the following steps：
1）, squeeze into four piling bars：
According to design parameter, the marine site specified in design it is vertical squeeze into four piling bars, finally make four centre-to-centre spacing of piling bar, lead
The parameters such as sag, embedded depth meet design requirement；
2）, be inserted in barrel base：
In plug-in opening the tenon insertion piling bar of auxiliary rod iron, lifting barrel base makes four sleeves entangle four auxiliary rod irons
And gradually sink, barrel base is slowly sunk to marine along auxiliary rod iron until contact sea bed and being enclosed within the upper of four piling bars
Portion；
3）, connection upper brace chunk：
Lifting upper brace chunk is simultaneously sunk down at barrel base position, four sleeve pipes of upper brace chunk is entangled barrel-shaped base
Four locating dowels on plinth, the bolt hole on blending bolt stationary positioned post realizes the phase of upper brace chunk and barrel base
Mutually fix and be connected；
4）, barrel base injection sea bed：
The pumping system opened on each barrel base inlet/outlet valve of connection extracts negative pressure, and as needed in upper brace chunk
Uniform on landing slab, symmetrical placement water tank, each water tank is filled up with water pump extracting seawater, make barrel base deadweight, negative pressure and
Along piling bar injection sea bed to projected depth under water tank Action of Gravity Field；
5）, remove auxiliary rod iron：
Taken out from four piling bars, remove auxiliary rod iron, and necessary detection and verification are carried out to simple ocean platform, it is final complete
Into the construction of simple ocean platform.
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| CN201710258193.4A CN106930261B (en) | 2017-04-19 | 2017-04-19 | Simple ocean platform in intertidal zone and construction method thereof |
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| CN201710258193.4A CN106930261B (en) | 2017-04-19 | 2017-04-19 | Simple ocean platform in intertidal zone and construction method thereof |
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| CN109281307A (en) * | 2018-11-10 | 2019-01-29 | 重庆大学 | A kind of offshore jacket platforms anti-seismic structure new system containing buckling restrained brace |
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| CN113513023A (en) * | 2021-03-17 | 2021-10-19 | 深圳海油工程水下技术有限公司 | Method for controlling installation precision of suction type pile foundation |
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| 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 |
| 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 |
| CN115613578A (en) * | 2022-11-08 | 2023-01-17 | 浙江大学 | Guide frame, jacket pile-first construction method and suction tube type penetration construction method |
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