CN107142918A - The marine floading condition operational method of self-elevating work platform half - Google Patents
The marine floading condition operational method of self-elevating work platform half Download PDFInfo
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- CN107142918A CN107142918A CN201710220465.1A CN201710220465A CN107142918A CN 107142918 A CN107142918 A CN 107142918A CN 201710220465 A CN201710220465 A CN 201710220465A CN 107142918 A CN107142918 A CN 107142918A
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- drinking water
- spud leg
- load
- floading condition
- platform
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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
-
- 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
-
- 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
- E02B17/021—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 with relative movement between supporting construction and platform
-
- 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
Abstract
The present invention relates to a kind of marine floading condition operational method of self-elevating work platform half, comprise the following steps：Half floading condition operating condition is determined, according to the drinking water curve of buoyancy figure in events in operation location tide table and Calculation of Stability report, the half floading condition operation spud leg curve of load is drawn, drinking water upper limit Dh and drinking water lower limit Dl under half floading condition operation lifting situation is determined；According to Changes in weather trend and tidewater variation tendency, with reference to half floading condition operation spud leg load curve, formulate half floading condition operation hull statoscope and draw, drinking water is maintained between the drinking water upper limit and the drinking water lower limit；Carry out rising ship operation, the drinking water upper limit can carry out leveling precompressed with drinking water lower limit center；Lifting operation is carried out, wherein, lifting and hull lifting construction operation order are arranged, lifting hull makes vessel draft be maintained between the drinking water upper limit and drinking water lower limit, it is ensured that spud leg ground pressure is within allowed band.Consider the platform environment load of the Each point in time of tidal fluctuations.
Description
Technical field
Offshore work platform field of the present invention, in particular to a kind of marine floading condition operation of self-elevating work platform half
Method.
Background technology
As global energy is in short supply, environmental pollution the problems such as be on the rise, wind energy is used as non-pollution renewable energy, and it is sent out
Exhibition is the rapidest.From Denmark 1991 since Vindeby builds up first marine wind electric field, Oversea wind power generation becomes generation
The bright spot of boundary's new energy development.
During marine wind electric field is built, it is related to the ocean soil property environment measurement of early stage, the construction of blower foundation, the fortune of blower fan
The problems such as defeated and crane cable lays arrangement and the construction with maritime transformer station.At sea the links of Construction of Wind Power are all needed
There are ocean engineering crane ship, operation ship etc. to assist completion.Offshore wind turbine job platform early stage borrows other ocean engineerings mostly
Ship or by its transformation, spot ship not aims at the installation of offshore wind power equipment and designed, and its shortcoming is：Maneuverability is poor,
Position inaccurate, sea situation it is severe when be unable to operation, efficiency is low and function is single etc..
Marine site geological conditions Muddy Bottoms are serious, and the mud of seabed covering reaches 20m, therefore, and shoe enters mud depth during design
Degree far can not meet actual demand, and so caused consequence is that spud leg is too short, after shoe reaches soil supporting layer,
Spud leg has fallen short of, and is insufficient to allow platform lifting to regulation operation height more than sea, causes existing wind-powered electricity generation to be installed and set
It is standby can not normal operation.
The content of the invention
The present invention is in order to solve in order to overcome the problem of can not carrying out operation in poor sea situation environment, it is proposed that Yi Zhonghai
The upper floading condition operational method of self-elevating work platform half, comprises the following steps：
S110 determines half floading condition operating condition, eating in events in operation location tide table and Calculation of Stability report
Water-curve of buoyancy figure, draws the half floading condition operation spud leg curve of load, determines the drinking water upper limit Dh under half floading condition operation lifting situation
With drinking water lower limit Dl；
S120 is according to Changes in weather trend and tidewater variation tendency, with reference to half floading condition operation spud leg load curve, formulates half
Floading condition operation hull statoscope is drawn, and drinking water is maintained between the drinking water upper limit and the drinking water lower limit；
S130 carries out rising ship operation, wherein, rise ship operation and be raised to the drinking water upper limit and absorb water lower limit center and can carry out
Leveling precompressed；
S140 carries out lifting operation, wherein, according to drauht change and spud leg real time load, with reference to the construction of half floading condition
Hull lifts schedule plan, arranges lifting and hull lifting construction operation order, and lifting hull is maintained at vessel draft to eat
Between limit waterborne and drinking water lower limit, it is ensured that spud leg ground pressure is within allowed band.
Further, the step S110 includes：According to the half floading condition operation spud leg curve of load, spud leg peak load is gathered
Qmax and minimum load Qmin and correspondence are absorbed water, and are compared with ultimate bearing capacity Qs, adjustment drinking water so that maximum load and
Minimum load is met：0<Qmin<Qmax<Qs, updates the half floading condition operation spud leg curve of load, floating from half after the renewal
Extreme draft upper limit Dh and drinking water lower limit Dl are obtained in the state operation spud leg curve of load.
Further, step S110 includes：Under extreme situation marine environmental conditions, spud leg load is obtained, calculating is adopted
It is as follows with formula：Wherein：QiRepresent jack-up unit spud leg under quiet hydraulic action
I vertical load, QwdiRepresent limit wind load to the vertical active force of spud leg, QwaiRepresent limit wave and ocean current load to spud leg
Vertical active force.
Further, the step S110 includes：In different crane postures, not under that loading condition, calculate
Spud leg load, reference is provided for construction process, and calculation formula is as follows：
Wherein, Fs1-4Spud leg 1-4 dead loads are represented, W represents platform weight, XgRepresent barycenter X-coordinate, XgRepresent barycenter Y-coordinate, barycenter
Position is with loop wheel machine angle of revolutionLifting angle θ change formula is as follows：
Further, the step S110 includes：Working condition is calculated according to wave height, wave period, velocity of wave, airspeedometer and deposited certainly
Skid resistance RH under working condition, calculation formula is：RH=Rc, Rc=Wtg φ, wherein:Rc glues for the soil of shoe bottom
Poly- power, Rcf is shoe periphery frictional force, and W is that this ship deposits the minimum gravity subtracted under operating mode after spud leg buoyancy, φ in operation, certainly
For supporting course internal friction angle；And carrying out stability against sliding check, it is ensured that RH/FH >=KH, RH are skid resistance, and FH is skid force, and KH is
Factor of safety against sliding, during working condition, KH>1.4, when depositing operating mode certainly, KH>1.2.
Further, the step 110 includes：Spud leg ultimate bearing capacity of foundation soil Qs is calculated, is specifically included：According to offer
The engineering geological data and concrete condition of operating area, carry out pitching pile calculating, in jack up installation ship spud leg to seat in the plane at lifting
Can and the soil layer of depth in, choose shoe insertion supporting course, and calculate corresponding ultimate bearing capacity of foundation soil Qs.
Further, the step S120 also includes：According to the forecast of each meteorological observatory, grasp and exist including the predetermined disc despatch that rises
The interior Changes in weather trend of 48 hours and tidewater situation of change, confirm ambient parameter can be within job area.
Further, the step S130 comprises the following steps：Platform is positioned, and adjusts load；Leveling platform, makes inclination angle
Less than 0.3 degree；Four pile legs are transferred simultaneously；Pitching pile, it is ensured that gradient is less than 0.3 degree；Adjustment drinking water, lifts platform so that
Absorb water the center between the drinking water upper limit and drinking water lower limit；Diagonal piling；Leveling platform so that inclination angle is less than
0.3 degree；Carry out platform construction operation.
Further, in addition to step S150, drop ship operation is carried out.
Further, the step of drop ship operation includes：Load is adjusted after platform construction terminates；Leveling platform, makes
Obtain gradient and be less than 0.3 degree；Diagonal pile pulling operation is carried out, stake bottom after pine is pulled out and contacts to earth and await orders；Spray punching is opened if pile pulling is not smooth
Water, loosens shoe；Four shoes are lifted simultaneously, and a water is washed in unlatching；Spud leg is promoted to a bottom and flushed with platform baseline, in insertion
Ring beam；Carry out platform displacement.
The present invention is relative to prior art, it is considered to the platform environment load of the Each point in time of tidal fluctuations, with reference to platform
The position of centre of gravity change of platform-weight system, has dynamically checked the ground pressure of each spud leg, so as to pacify in lifting construction operation
It is complete that the offshore lifting work that half floading condition construction technology carries out blower fan and tower part is efficiently used.
Brief description of the drawings
The features and advantages of the present invention can be more clearly understood from by reference to accompanying drawing, accompanying drawing is schematical without that should manage
Solve to carry out any limitation to the present invention, in the accompanying drawings：
Fig. 1 illustrates for the flow of the floading condition operational method of marine self-elevating work platform half in some embodiments of the invention
Figure；
Fig. 2 be some embodiments of the invention in platform mass computation model schematic diagram；
Fig. 3 schematic diagrames in half floading condition operation for the marine self-elevating work platform in some embodiments of the invention；
Fig. 4 is the spud leg pressure history schematic diagram in some embodiments of the invention；
Fig. 5 is the spud leg load in the floading condition operational method of marine self-elevating work platform half in some embodiments of the invention
Curve synoptic diagram；
Fig. 6 is the liter ship operation in the floading condition operational method of marine self-elevating work platform half in some embodiments of the invention
Schematic flow sheet；
Fig. 7 is the spud leg pressure in the floading condition operational method of marine self-elevating work platform half in some embodiments of the invention
Detect interface schematic diagram；
Fig. 8 is the drop ship operation in the floading condition operational method of marine self-elevating work platform half in some embodiments of the invention
Schematic flow sheet；
Fig. 9 be some embodiments of the invention in the marine self-elevating work platform for half floading condition operation structural representation
Figure；
Figure 10 be some embodiments of the invention in the marine self-elevating work platform for half floading condition operation controller
Structural representation；
Figure 11 fills for the lifting of the marine self-elevating work platform for half floading condition operation in some embodiments of the invention
Put structural representation.
Embodiment
It is below in conjunction with the accompanying drawings and specific real in order to be more clearly understood that the above objects, features and advantages of the present invention
Mode is applied the present invention is further described in detail.It should be noted that in the case where not conflicting, the implementation of the application
Feature in example and embodiment can be mutually combined.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
Implemented with being different from other modes described here using other, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
At sea in the construction of wind power plant, jack-up unit is mainly responsible for the lifting task of high-precision requirement.Jack up
Platform has 4 spud legs for being about 60m, and sea bed soil layers are inserted by four spud legs when work, by platform in the water surface with
On, a metastable workbench is formed, the lifting construction of high-precision requirement is completed.On each spud leg of platform equipped with 7m ×
8m large-scale shoe, the holding power for increasing soil layer, this design is to adapt to special geological conditions.In each construction
In link, the ground pressure of 4 spud legs of platform changes with loop wheel machine posture and the change in location of weight.Under some operating modes, stake
Leg pressure range is larger, the maximum pressure of spud leg may considerably beyond each spud leg of ship under static condition average pressure,
It is required that soil layer where every spud leg of jack-up unit can provide the bearing capacity for exceeding peak value, it is ensured that jack-up unit is entirely being constructed
During will not run-off the straight even topple.
However, the marine site geological conditions for the marine wind electric field that China has planned or built is generally poor, and e.g., Donghai Bridge
The mud of wind field seabed covering reaches 20m, and the support of various operating modes constructions can be completed by being not enough to the enough confession platforms of offer
Power, cause existing jack up offshore engineering platform can not normal operation, greatly constrain jack-up unit coastal at home
The region applicability of area construction.In order to solve this contradiction, optional solution has two categories below：(1) platform is transformed, is increased
Staking boot upper is accumulated；(2) spud leg length is increased；(3) existing construction technology is improved, new construction method is proposed.(1) it is first in scheme
First need by redesigning the feasibility come evaluation scheme, it is also possible to increase the difficulty of pile pulling, not only need to expend substantial amounts of people
Power, material resources, and the substantial amounts of quality time will be wasted.(2) scheme can reach that bearing capacity is higher although adding spud leg length
Soil layer, but the vertical stability of spud leg can be reduced, further the holding power of reduction spud leg, the performance and safety of ship
Property can have a greatly reduced quality.
Self-lifting offshore wind power job platform is under general work state, and platform leaves the water surface, it is ensured that platform is in relative
The static state of sea bed is constructed.Now, the additional bending moment that platform weight and environmental load are produced is provided by 4 spud legs completely
Support dynamic balance.Half floading condition operation, then be by reducing below jack-up unit to the water surface, it is ensured that a fixed platform absorbs water simultaneously
By buoyant of sea water and a kind of a kind of construction method of reduction spud leg load of spud leg holding power.However, allow platform drinking water by
While buoyant of sea water, also can introduce trend, the influence that wave is brought.The spud leg pressure that buoyancy is brought is reduced, and wave
The spud leg load that trend additional bending moment is brought, which increases, make it that control stability is more difficult.The operational method of the present invention is by calculating half
In floading condition operation process, it is considered to the platform environment load of the Each point in time of tidal fluctuations, with reference in platform lifting construction operation
The position of centre of gravity change of platform-weight system, has dynamically checked the ground pressure of each spud leg, so that safely and effectively using half
Floading condition construction technology carries out the offshore lifting work of blower fan and tower part.
Embodiment one
The present invention reduces spud leg load, it is ensured that platform stabilization, it is proposed that one to ensure in half floading condition job execution
The marine floading condition operational method of self-elevating work platform half is planted, as shown in figure 1, comprising the following steps：
S110 determines half floading condition operating condition, eating in events in operation location tide table and Calculation of Stability report
Water-curve of buoyancy figure, draws the half floading condition operation spud leg curve of load, determines the drinking water upper limit Dh under half floading condition operation lifting situation
With drinking water lower limit Dl；
S120 is according to Changes in weather trend and tidewater variation tendency, with reference to half floading condition operation spud leg load curve, formulates half
Floading condition operation hull statoscope is drawn, and drinking water is maintained between the drinking water upper limit and the drinking water lower limit；
S130 carries out rising ship operation, wherein, rise ship operation and be raised to the drinking water upper limit and absorb water lower limit center and can carry out
Leveling precompressed；
S140 carries out lifting operation, wherein, according to drauht change and spud leg real time load, with reference to the construction of half floading condition
Hull lifts schedule plan, arranges lifting and hull lifting construction operation order, and lifting hull is maintained at vessel draft to eat
Between limit waterborne and drinking water lower limit, it is ensured that spud leg ground pressure is within allowed band.
Half floading condition operational method in the present invention, ensures to ensure that the security of operation between bound by drinking water, this
Invention is also applied on platform by wind wave current load, carries out dynamic authentication and static authentication, and investigation is surrendered and bent and takes under state
Spud leg stress and platform stress, the operational method for examining the present invention ensure that the security of hull.The operational method of the present invention
There is provided good operational method for the problem of can overcoming also with features as poor geologic condition, mud depth so that lifting operation scope becomes
Greatly.
The upper limit and drinking water lower limit are absorbed water in operational method of the present invention, is considered, the spud leg endurance limit, it is ensured that steady
Qualitative, the step S110 includes：According to the half floading condition operation spud leg curve of load, collection spud leg peak load Qmax and minimum load
Lotus Qmin and correspondence are absorbed water, and are compared with ultimate bearing capacity Qs, adjustment drinking water so that maximum load and minimum load are full
Foot：0<Qmin<Qmax<Qs, updates the half floading condition operation spud leg curve of load, from half floading condition operation spud leg after the renewal
Extreme draft upper limit Dh and drinking water lower limit Dl are obtained in the curve of load.Spud leg ultimate bearing capacity of foundation soil Qs is calculated, is specifically included：Root
According to the engineering geological data and concrete condition of the operating area of offer, pitching pile calculating is carried out to seat in the plane at lifting, in jack up peace
Load onto ship spud leg can and the soil layer of depth in, choose shoe insertion supporting course, and calculate corresponding ultimate bearing capacity of foundation soil Qs.
Under half floading condition effect operating mode, jack up installation ship is acted on by ocean environmental loads such as sea wind, wave and streams, is needed
Consider influence of these factors to spud leg load, step S110 includes：Under extreme situation marine environmental conditions, stake is obtained
Leg load, calculates as follows using formula：Wherein：QiRepresent jack-up unit in hydrostatic power
The lower spud leg i of effect vertical load, QwdiRepresent limit wind load to the vertical active force of spud leg, QwaiRepresent limit wave and ocean current
Load is to the vertical active force of spud leg.
When checking spud leg load, also need to consider that itself acts the influence to spud leg, as shown in Fig. 2 calculating for platform mass
Model, the step S110 includes：In different crane postures, not under that loading condition, calculate spud leg load, be construction process
Reference is provided, calculation formula is as follows： Wherein, Fs1-4Represent spud leg 1-4 static loads
Lotus, W represents platform weight, a, and b, c is dimensional parameters, XgRepresent barycenter X-coordinate, YgBarycenter Y-coordinate is represented, centroid position is with hanging
Machine angle of revolutionLifting angle θ change formula is as follows：
M in formulas, Mg, Mb, MlFor mass parameter, Lb, Lm, LgFor dimensional parameters.
It is further, it is necessary to which antiskid characteristic when checking half floading condition operation, the step S110 includes：According to wave height, ripple week
Phase, velocity of wave, airspeedometer calculate working condition and deposit the skid resistance RH under working condition certainly, and calculation formula is：RH=Rc, Rc=W
Tg φ, wherein:Rc be shoe bottom soil cohesive strength, Rcf be shoe periphery frictional force, W be this ship in operation, deposit operating mode certainly
Under subtract the minimum gravity after spud leg buoyancy, φ is supporting course internal friction angle；And carry out stability against sliding check, it is ensured that RH/FH >=
KH, RH are skid resistance, and FH is skid force, and KH is factor of safety against sliding, during working condition, KH>1.4, when depositing operating mode certainly, KH>
1.2。
In order to ensure working security, the step S120 also includes：According to the forecast of each meteorological observatory, grasping includes making a reservation for
Rise disc despatch including the Changes in weather trend of 48 hours and tidewater situation of change, confirm ambient parameter can job area it
It is interior.
The step S130 comprises the following steps：Platform is positioned, and adjusts load；Leveling platform, makes inclination angle be less than 0.3
Degree；Four pile legs are transferred simultaneously；Pitching pile, it is ensured that gradient is less than 0.3 degree；Adjustment drinking water, lifts platform so that drinking water is in institute
State the center between the drinking water upper limit and drinking water lower limit；Diagonal piling；Leveling platform so that inclination angle is less than 0.3 degree；Carry out
Platform construction operation.Control drinking water is between bound, it is ensured that platform will not topple, it is ensured that construction safety.
The operational method of the present invention also includes step S150, carries out drop ship operation.The step of drop ship operation, includes：
Platform construction adjusts load after terminating；Leveling platform so that gradient is less than 0.3 degree；Diagonal pile pulling operation is carried out, Song Houzhuan is pulled out
Bottom, which is contacted to earth, awaits orders；Spray bath is opened if pile pulling is not smooth, shoe is loosened；Four shoes are lifted simultaneously, and a water is washed in unlatching；Stake
Leg is promoted to a bottom and flushed with platform baseline, ring beam in insertion；Carry out platform displacement.
Construction method of the present invention is by calculating in half floading condition operation process, it is considered to the platform of the Each point in time of tidal fluctuations
Environmental load, with reference to the position of centre of gravity change of platform-weight system in platform lifting construction operation, has dynamically checked each spud leg
Ground pressure so that the offshore lifting for safely and effectively carrying out blower fan and tower part using half floading condition construction technology works,
As shown in Figure 3.
Embodiment two
Operational method of the present invention when being constructed, it is necessary to check and the Data Preparation of early stage, including
1st, spud leg ultimate bearing capacity of foundation soil is calculated
According to the engineering geological data and concrete condition of the operating area of offer, pitching pile calculating is carried out to seat in the plane at lifting,
If soil supporting course is deeper, topsoil is softer to be not enough to support the complete raising operation of jack up ship, then it is contemplated that half is floating
State lifting construction operation.Jack up installation ship spud leg can and the soil layer of depth in, choose shoe insertion supporting course, and calculate phase
The ultimate bearing capacity of foundation soil Qs that answers, in spud leg driving depth L, pile pulling power and resistant slide stability.
2nd, skid resistance is calculated
Skid resistance is calculated according to CCS (CCS)《Marine mobile platform enters level with building specification》(2005)
Three 2.5.2 " resistant slide stability " are required, calculating check is carried out to the floading condition resistant slide stability of jack up ship half.Computing environment condition
Choose extreme environmental conditions
| Operating mode | Working condition | From depositing operating mode |
| Wave height (m) | 3 | 5 |
| Wave period (s) | 7 | 8 |
| Flow velocity (kn) | 3 | 3 |
| Wind speed (m/s) | 13.8 | 36 |
2.1 skid resistance RH
Skid resistance mainly considers the cohesiveness of shoe bottom soil, and the frictional force of shoe Soil Surrounding is not considered.
RH=Rc
Rc=Wtg φ；
Wherein:Rc is the soil cohesive strength of shoe bottom；Rcf is shoe periphery frictional force；
W is that this ship deposits the minimum gravity subtracted under operating mode after spud leg buoyancy in operation, certainly；
φ is supporting course internal friction angle；
2.2 stability against sliding are checked
Factor of safety against sliding：RH/FH≥KH
In formula:RH is skid resistance；
FH is skid force；
KH is factor of safety against sliding, code requirement, working condition KH>1.4, operating mode KH is deposited certainly>1.2 meet requirement.
3rd, the spud leg dead load of static full construction process is calculated
In offshore wind farm job platform site operation, crane posture, load can change with the flow of installation, enter
And cause spud leg load to produce change.Therefore, the full construction process spud leg load of time domain is calculated, is Construction Decision Stage evaluation tool
The premise of body construction flow security and feasibility.This project lumped-mass model, calculates each spud leg dead load and (disregards environment
Load), the lumped-mass model of China's electricity 1001 is as shown in Figure 2：
As illustrated, each spud leg numbering and ground pressure calculation formula are as follows：
Wherein：
Fs1-4--- spud leg 1-4 dead loads；
W --- platform weight；
xg--- barycenter X-coordinate；
Yg--- barycenter Y-coordinate；
In work progress, centroid position is as follows with the change formula at loop wheel machine angle of revolution, lifting angle：
Different construction process, each spud leg dead load of platform of different arm postures, as a result such as Fig. 4 institutes can be calculated by above formula
Show.Arrangement for general construction process provides reference.
4th, load is calculated the lower spud leg of sea situation effect over the ground
Under half floading condition effect operating mode, jack up installation ship is acted on by ocean environmental loads such as sea wind, wave and streams, this
A little environmental loads can make the larger overturning moment of the hull bear under the effect of half floading condition, and the balance of overturning moment causes pair of spud leg
Ground pressure is increased or decreased, in order to calculate overturning moment, and collection extreme situation environmental load is to the ground pressure of environmental load
Influence change, is applied to the ground pressure that the jack up wind turbine installation vessel under extreme environment load is obtained on spud leg.
Wherein：
Qi--- jack-up unit spud leg i under quiet hydraulic action vertical load,
Qwdi--- limit wind load to the vertical active force of spud leg,
Qwai--- limit wave and ocean current load are to the vertical active force of spud leg.
5th, half floading condition operational security is assessed
Drinking water-curve of buoyancy figure in integration project location tide table and Calculation of Stability report, draws final half floating
The state operation spud leg curve of load, and gather at drinking water minimum and spud leg peak load Qmax and Qmin.Enter with ultimate bearing capacity Qs
Row compares.Assess the seat in the plane and carry out operation if appropriate for using half floading condition operational method, spud leg ground pressure needs to meet：
0<Qmin<Qmax<Qs
The bearing capacity Qs if ship maximum pressure Qmax oversteps the extreme limit, can reduce Qmax by increasing the method for drinking water
And be adjusted within safe range, the half floading condition operation spud leg curve of load is updated, as shown in Figure 5.Pass through synthesis in this way
Balance, determines the drinking water upper limit Dh and lower limit Dl under half floading condition operation lifting situation.
The present invention ensure that the reliability of construction method during the check of early stage, obtain the drinking water upper limit and drinking water lower limit
Value.Construction operation is carried out afterwards.Specifically include following steps：
6th, preparation of construction
6.1 it is in place before should be according to the forecast of each meteorological observatory, grasping includes the weather of 48 hours including predetermined liter of disc despatch
Variation tendency and tidewater situation of change, confirm ambient parameter can be within job area；
6.2 according to Changes in weather trend and tidewater variation tendency, with reference to spud leg load curve, formulates half floading condition operation hull
Rise
Drop plan.During tidewater changes, jack up ship should comply with tidewater change, in the period of construction operation is appropriate
Risen and operation of sinking, drinking water is maintained between the drinking water upper limit and drinking water lower limit.Lifting plan simultaneously can root
The hull gone out substantially according to tidewater fluctuation time and fluctuation velocity estimation rises and sinking time table, to facilitate operation
7th, ship operation is risen
The liter ship operation procedure of half floading condition operation is as shown in fig. 6, platform positioning, adjusts load；Leveling platform, makes inclination angle
Less than 0.3 degree；Four pile legs are transferred simultaneously；Pitching pile, it is ensured that gradient is less than 0.3 degree；Adjustment drinking water, lifts platform so that
Absorb water the center between the drinking water upper limit and drinking water lower limit；Diagonal piling；Leveling platform so that inclination angle is less than
0.3 degree；Carry out platform construction operation.Crucial place is that a liter ship operation is raised to drinking water upper limit drinking water lower limit center
Carry out leveling precompressed.
8th, lifting operation
Need to observe drauht change and spud leg real time load constantly in lifting operation, with reference to half floading condition construction hull
Lift schedule plan, reasonable arrangement lifting and hull lifting construction operation order.Vessel draft is kept by lifting hull
Rational position before the drinking water upper limit and drinking water lower limit, it is ensured that spud leg ground pressure is within allowed band.The present invention exists
Pressure monitor sensor spud leg stress is set on spud leg, and monitoring interface is set, as shown in Figure 7.
The 9th, ship operation drops
The operational method of the present invention, not only allows for a liter ship lifting operation, has further related to drop ship operation, formd complete
Technological process.Including：Load is adjusted after platform construction terminates；Leveling platform so that gradient is less than 0.3 degree；Carry out diagonal
Pile pulling operation, pulls out stake bottom after pine and contacts to earth and await orders；Spray bath is opened if pile pulling is not smooth, shoe is loosened；Lifting four simultaneously
A water is washed in shoe, unlatching；Spud leg is promoted to a bottom and flushed with platform baseline, ring beam in insertion；Carry out platform displacement.Idiographic flow
As shown in Figure 8.
At present, it is domestic to only have a small number of self-lifting offshore wind power job platforms.The present invention it is Promethean propose it is complete
Half floading condition construction technology bag, covers platform specific operating procedure, to safety analysis process, with high content of technology, with reference to
The features such as engineering is actual, applies advanced monitoring device, calculates the technological means such as analysis, and independent research has specific aim
Quick calculation method.
Embodiment three
In order to ensure in half floading condition job execution, reduce spud leg load, it is ensured that platform stabilization, automatically adjust drinking water,
As shown in Figure 9, it is proposed that a kind of marine self-elevating work platform 100 for half floading condition operation for automatically adjusting drinking water, wrap
Include main platform body 110, be arranged in the main platform body 110 can relatively described main platform body 110 lift spud leg 120, set
It is used for the lowering or hoisting gear 130 for driving the spud leg 120 to lift in the main platform body 110；Also include being arranged on the platform
Pressure sensor 140 on the unloaded baseline of main body 110 and the controller 150 being connected with the pressure sensor 140, the control
Device 150 is also connected with the lowering or hoisting gear 130.The bottom of spud leg 120 is also associated with mat 160, and the mat 160 is applied to
In mud.The controller receives the information of the pressure information that pressure sensor 140 reads and storage inside using existing
Some technologies carries out simple compare and can know that the job platform 100 relative to the relation for being able to eat the upper limit and drinking water lower limit, from
And by controlling lowering or hoisting gear 130 spud leg 120 is realized that elevating control absorbs water.The middle application program of controller of the present invention is
Existing technology.Simultaneously present invention also offers a kind of controller architecture more simplified, it is made up of hardware circuit, so as to ensure
The reliability that job platform 100 works.
Specifically, as shown in Figure 10, the controller 150 includes first comparator circuit 151, the second comparator circuit
152nd, the 3rd comparator circuit 153 and with gate circuit 154, the output end of pressure sensor 140 connects the first comparator
High-end, the high-end and drinking water of the first comparator circuit 151 of the low side of circuit 151 and second comparator circuit 152
Upper limit corresponding voltage end is connected, and the low side of second comparator circuit 152 is connected with the drinking water lower limit corresponding voltage end, institute
State the output end of first comparator circuit 151 and the high-end connection of the 3rd comparator circuit 153, the second comparator electricity
The output end on road 152 is connected with the low side of the 3rd comparator circuit 153；The output end of the first comparator circuit 151
It is connected with the output end of second comparator circuit 152 with the input with gate circuit 154, the 3rd comparator electricity
The output end on road 153 and described it is connected with the output end of gate circuit 154 with the lowering or hoisting gear 130.The pressure sensor 140
Transmission of analogue signal is to comparator circuit (151,152), when high-end input voltage is more than low side input voltage, and comparator output is high
Level " 1 ", otherwise output low level " 0 ", described and gate circuit when having low level in input, are output as bottom level 0, only all
During for high level, output is just high level " 1 ".The voltage that the more big pressure sensor 140 of drinking water is exported is bigger, otherwise more
It is small, when the voltage that the pressure sensor 140 is exported is between the corresponding voltage of drinking water upper limit voltage corresponding with drinking water lower limit,
Described to export high level " 1 " with gate circuit, the output state of the 3rd comparator circuit 153 is ignored, no matter being output as height
Level or low level, the controller 150 is all without control lowering or hoisting gear work, and specifically, it is connected to lowering or hoisting gear 130
In hydraulic pressure perform structure locking control end；When the voltage that the pressure sensor 140 is exported is less than drinking water lower limit correspondence electricity
During pressure, described to export low level " 0 " with gate circuit 154, the hydraulic actuating mechanism is not locked out, while the 3rd comparator circuit
153 are output as high level " 1 ", and at this moment, hydraulic actuating mechanism is acted, increase drinking water；When the pressure sensor 140 is exported
Voltage when being more than drinking water upper limit corresponding voltage, the output low level " 0 " with gate circuit 154, the hydraulic actuating mechanism is not
It is locked out, while the 3rd comparator circuit 153 is output as low level " 0 ", at this moment, hydraulic actuating mechanism is acted, and reduction is eaten
Water；Specifically, the output end of the 3rd comparator circuit 153 is connected with the control end of the hydraulic actuating mechanism.
The drinking water lower limit corresponding voltage end, drinking water upper limit corresponding voltage end, concretely variable voltage source, can specifically lead to
The bleeder circuit for crossing adjustable rheostat composition is realized.
As shown in figure 11, multiple locks are provided with short transverse of the side of the spud leg 120 in the present invention along spud leg 120
Tieholen 121, locking hole 121 is radial hole, and the lowering or hoisting gear 130 also includes first hydraulic cylinder 131, the and of second hydraulic cylinder 132
3rd hydraulic cylinder 133, the main body of the first hydraulic cylinder 131 and the main body of second hydraulic cylinder 132 are consolidated with the main platform body 110
Fixed, the expansion link of the first hydraulic cylinder 131 coordinates with the multiple locking hole 121, the expansion link of the second hydraulic cylinder 132
Telescopic direction it is consistent with the short transverse of the spud leg 120, the expansion link of the second hydraulic cylinder 132 is fixed with the described 3rd
The main body of hydraulic cylinder 133, expansion link and the multiple locking hole 121 of the 3rd hydraulic cylinder 133 coordinate, first hydraulic pressure
The expansion link of cylinder 131 and the expansion link of the second hydraulic cylinder 132 are used to inserting the multiple locking hole 121 or from the multiple
Depart from locking hole 121.
First hydraulic cylinder 131, the hydraulic cylinder 133 of second hydraulic cylinder 132 and the 3rd make platform to complete latch pole-climbing action
Make elevating movement.The principle that spud leg 120 is lifted is that the piston rod (i.e. expansion link) of first hydraulic cylinder 131 is locked from spud leg 120
Exited in tieholen 121 (release), the piston rod of the 3rd hydraulic cylinder 133 enters (locking), second hydraulic cylinder in pile leg locking hole 121
132 piston rod drives spud leg descending, increase drinking water, and then first hydraulic cylinder 131 is locked, and the 3rd hydraulic cylinder 133 unclamps, and second
The piston reset of hydraulic cylinder 132.Conversely, main platform body 110 can be made to rise along spud leg 120, reduce drinking water, reach certain height
Afterwards, the hydraulic cylinder 133 of first hydraulic cylinder 131 and the 3rd is locked simultaneously.
In the present invention, term " first ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that indicate or
Imply relative importance.Term " multiple " refers to two or more, unless otherwise clear and definite restriction.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
1. a kind of floading condition operational method of marine self-elevating work platform half, it is characterised in that comprise the following steps：
S110 determines half floading condition operating condition, the drinking water in events in operation location tide table and Calculation of Stability report-floating
Force curve figure, draws the half floading condition operation spud leg curve of load, determines the drinking water upper limit Dh under half floading condition operation lifting situation and eats
Dl is limited under water；
S120 is according to Changes in weather trend and tidewater variation tendency, with reference to half floading condition operation spud leg load curve, formulates half floading condition
Operation hull statoscope is drawn, and drinking water is maintained between the drinking water upper limit and the drinking water lower limit；
S130 carries out rising ship operation, wherein, liter ship operation, which is raised to the drinking water upper limit and drinking water lower limit center, can carry out leveling
Precompressed；
S140 carries out lifting operation, wherein, according to drauht change and spud leg real time load, with reference to half floading condition construction hull
Schedule plan is lifted, lifting and hull lifting construction operation order is arranged, lifting hull makes vessel draft be maintained in drinking water
Between limit and drinking water lower limit, it is ensured that spud leg ground pressure is within allowed band.
2. the floading condition operational method of marine self-elevating work platform half according to claim 1, it is characterised in that the step
S110 includes：According to the half floading condition operation spud leg curve of load, collection spud leg peak load Qmax and minimum load Qmin and correspondingly
Drinking water, and be compared with ultimate bearing capacity Qs, adjustment drinking water so that maximum load and minimum load are met：
0<Qmin<Qmax<Qs, updates the half floading condition operation spud leg curve of load, from the half floading condition operation stake after the renewal
Extreme draft upper limit Dh and drinking water lower limit Dl are obtained in the leg curve of load.
3. the floading condition operational method of marine self-elevating work platform half according to claim 1 or 2, it is characterised in that step
S110 includes：Under extreme situation marine environmental conditions, spud leg load is obtained, calculates as follows using formula：
Wherein：QiRepresent jack-up unit under quiet hydraulic action spud leg i it is vertical
Load, QwdiRepresent limit wind load to spud leg active force, QwaiRepresent limit wave and ocean current load to spud leg active force.
4. the floading condition operational method of marine self-elevating work platform half according to claim 1 or 2, it is characterised in that described
Step S110 includes：In different crane postures, not under that loading condition, calculate spud leg load, reference provided for construction process,
Calculation formula is as follows： Wherein, Fs1-4Represent spud leg 1-4 static loads
Lotus, W represents platform weight, XgRepresent barycenter X-coordinate, YgBarycenter Y-coordinate is represented, centroid position is with loop wheel machine angle of revolutionLifting angle
θ change formula is as follows：
5. the floading condition operational method of marine self-elevating work platform half according to claim 1 or 2, it is characterised in that described
Step S110 includes：Working condition is calculated according to wave height, wave period, velocity of wave, airspeedometer and the skid resistance RH under working condition is deposited certainly,
Calculation formula is：RH=Rc, Rc=Wtg φ, wherein:Rc is the soil cohesive strength of shoe bottom, and Rcf rubs for shoe periphery
Power, W is that this ship deposits the minimum gravity subtracted under operating mode after spud leg buoyancy in operation, certainly, and φ is supporting course internal friction angle；And carry out
Stability against sliding is checked, it is ensured that RH/FH >=KH, RH are skid resistance, and FH is skid force, and KH is factor of safety against sliding, during working condition,
KH>1.4, when depositing operating mode certainly, KH>1.2.
6. the floading condition operational method of marine self-elevating work platform half according to claim 1 or 2, it is characterised in that described
Step 110 includes：Spud leg ultimate bearing capacity of foundation soil Qs is calculated, is specifically included：Provided according to the engineering geology of the operating area of offer
Material and concrete condition, at lifting seat in the plane carry out pitching pile calculating, jack up installation ship spud leg can and the soil layer of depth in, choose
Supporting course is inserted in shoe, and calculates corresponding ultimate bearing capacity of foundation soil Qs.
7. the floading condition operational method of marine self-elevating work platform half according to claim 1 or 2, it is characterised in that described
Step S120 also includes：According to the forecast of each meteorological observatory, the Changes in weather of 48 hours including predetermined liter disc despatch is grasped
Trend and tidewater situation of change, confirm ambient parameter can be within job area.
8. the floading condition operational method of marine self-elevating work platform half according to claim 1 or 2, it is characterised in that described
Step S130 comprises the following steps：Platform is positioned, and adjusts load；Leveling platform, makes inclination angle be less than 0.3 degree；Decentralization four simultaneously
Pile leg；Pitching pile, it is ensured that gradient is less than 0.3 degree；Adjustment drinking water, lift platform so that drinking water it is described drinking water the upper limit and
Absorb water the center between lower limit；Diagonal piling；Leveling platform so that inclination angle is less than 0.3 degree；Carry out platform construction work
Industry.
9. the floading condition operational method of marine self-elevating work platform half according to claim 1 or 2, it is characterised in that also wrap
Step S150 is included, drop ship operation is carried out.
10. the floading condition operational method of marine self-elevating work platform half according to claim 9, it is characterised in that the drop
The step of ship operation, includes：Load is adjusted after platform construction terminates；Leveling platform so that gradient is less than 0.3 degree；Progress pair
Angle pile pulling operation, pulls out stake bottom after pine and contacts to earth and await orders；Spray bath is opened if pile pulling is not smooth, shoe is loosened；Lifting four simultaneously
A water is washed in stake shoe, unlatching；Spud leg is promoted to a bottom and flushed with platform baseline, ring beam in insertion；Carry out platform displacement.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109083117A (en) * | 2018-09-28 | 2018-12-25 | 中船黄埔文冲船舶有限公司 | A kind of piling standing method of jack-up unit |
| CN109515639A (en) * | 2019-01-08 | 2019-03-26 | 檀煜 | A kind of semi-submersible ocean wind power plant floating body |
| CN112417728A (en) * | 2020-11-23 | 2021-02-26 | 中国船舶工业集团公司第七0八研究所 | Remote intelligent self-elevating platform operation safety evaluation system |
| CN113331106A (en) * | 2021-06-07 | 2021-09-03 | 南方海洋科学与工程广东省实验室(湛江) | Fishing ground anti-slip column, preparation method of fishing ground anti-slip column and fishing ground |
| CN115094890A (en) * | 2022-07-18 | 2022-09-23 | 中交第一航务工程局有限公司 | Construction method for semi-floating pile inserting of self-elevating platform type leveling ship |
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| CN115107930B (en) * | 2022-06-23 | 2024-03-26 | 华电重工股份有限公司 | Semi-floating offshore wind power construction installation ship and construction method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6652192B1 (en) * | 2000-10-10 | 2003-11-25 | Cso Aker Maritime, Inc. | Heave suppressed offshore drilling and production platform and method of installation |
| CN105151241A (en) * | 2015-07-30 | 2015-12-16 | 中国海洋石油总公司 | Multi-stand-column semi-submersible platform for cylindrical floating box |
-
2017
- 2017-04-06 CN CN201710220465.1A patent/CN107142918B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6652192B1 (en) * | 2000-10-10 | 2003-11-25 | Cso Aker Maritime, Inc. | Heave suppressed offshore drilling and production platform and method of installation |
| CN105151241A (en) * | 2015-07-30 | 2015-12-16 | 中国海洋石油总公司 | Multi-stand-column semi-submersible platform for cylindrical floating box |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109083117A (en) * | 2018-09-28 | 2018-12-25 | 中船黄埔文冲船舶有限公司 | A kind of piling standing method of jack-up unit |
| CN109515639A (en) * | 2019-01-08 | 2019-03-26 | 檀煜 | A kind of semi-submersible ocean wind power plant floating body |
| CN109515639B (en) * | 2019-01-08 | 2020-12-11 | 杭州煜贤网络科技有限公司 | Floating body for semi-immersion type ocean wind power generation equipment |
| CN112417728A (en) * | 2020-11-23 | 2021-02-26 | 中国船舶工业集团公司第七0八研究所 | Remote intelligent self-elevating platform operation safety evaluation system |
| CN112417728B (en) * | 2020-11-23 | 2022-12-20 | 中国船舶工业集团公司第七0八研究所 | Remote intelligent self-elevating platform operation safety evaluation system |
| CN113331106A (en) * | 2021-06-07 | 2021-09-03 | 南方海洋科学与工程广东省实验室(湛江) | Fishing ground anti-slip column, preparation method of fishing ground anti-slip column and fishing ground |
| CN113331106B (en) * | 2021-06-07 | 2022-11-15 | 南方海洋科学与工程广东省实验室(湛江) | Fishing ground anti-slip column, preparation method of fishing ground anti-slip column and fishing ground |
| CN115094890A (en) * | 2022-07-18 | 2022-09-23 | 中交第一航务工程局有限公司 | Construction method for semi-floating pile inserting of self-elevating platform type leveling ship |
| CN115094890B (en) * | 2022-07-18 | 2024-01-30 | 中交第一航务工程局有限公司 | Semi-floating pile inserting construction method for self-elevating platform type leveling ship |
| CN116853441A (en) * | 2023-09-05 | 2023-10-10 | 中交第一航务工程局有限公司 | Leveling ship ballast water regulating and controlling system and regulating and controlling method |
| CN116853441B (en) * | 2023-09-05 | 2024-01-09 | 中交第一航务工程局有限公司 | Leveling ship ballast water regulating and controlling system and regulating and controlling method |
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