CN102190065B - Construction method for ocean platform - Google Patents
Construction method for ocean platform Download PDFInfo
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- CN102190065B CN102190065B CN 201010122201 CN201010122201A CN102190065B CN 102190065 B CN102190065 B CN 102190065B CN 201010122201 CN201010122201 CN 201010122201 CN 201010122201 A CN201010122201 A CN 201010122201A CN 102190065 B CN102190065 B CN 102190065B
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Abstract
The invention discloses a construction method for an ocean platform. The method comprises the following steps of: constructing an upper ship body and a lower ship body; launching the upper ship body and the lower ship body; folding the upper ship body and the lower ship body; and performing outside fitting-out. The upper and lower ship body folding process comprises the following steps of: dragging launched upper and lower ship bodies to a dockyard specified position; hoisting the upper ship body to a certain height position; positioning the lower ship body below the upper ship body; and folding the upper ship body and the lower ship body into a whole in a butt joint mode. By the method, the construction period of the ocean platform can be shortened, and labor cost can be saved; and the method is not limited by surges, and is short in folding time and high in folding accuracy.
Description
Technical field
The present invention relates to ocean engineering and ship building field, specifically, relate to a kind of upper hull and the lower hull of platform independently can manufacturings respectively, again by the method that integral body is closed up the construction platform that forms main body is carried out in water, lifting down.
Background technology
At present, have problems such as to last the time long, and labor intensive is many, and aloft work danger is big in traditional platform build process, traditional platform method of construction mainly contains two kinds:
A kind of is land formation, mainly follow the construction that the method for successively building realizes main body from the lower hull to the upper hull, by water mode under certain machinery main body is sent in the water then, by tugboat main body is dragged to the fitting-out quay again and finishes outside fitting-out work, finish system debug at last and realize deliver the vessel;
Another is that dock is built, it also is the construction of in dock, finishing main body by the mode of successively building, make it floating naturally by following water mode in the depressed place then, be dragged to the fitting-out quay by tugboat again to finish outside fitting-out work, deliver the vessel is finished in the final system debugging.
Above-mentioned traditional platform method of construction is tantamount to the construction of land building at the manufacture process of main body, very high to conventional weight-lifting equipment requirement, the construct platform required time is long, the expense costliness, efficiency of construction is low, and closes up error and be difficult to guarantee build guality too greatly and close up precision.
Deficiency at traditional platform method of construction, having some producers to adopt following method to carry out platform abroad builds: will go up lower hull build separately respectively finish after, water under the lower hull is sent in elder generation's Landed by Lighter, do not have in the entry by the major part of ballast with lower hull, after will carry upper hull barge sail lower hull column midway location into, make upper hull just be positioned at the lower hull top, the discharging ballast water, the lower hull come-up, after the last lower hull butt joint barge is rolled away from, finish and close up, carry out work such as follow-up fitting-out again.The advantage of this kind method is to use barge to transport the upper hull module, need not upper hull is reinforced; Only use barge and ballast water just can realize closing up, need not large-scale loop wheel machine; Its shortcoming is to close up the zone depth of water and sea calmness degree are also had special requirement, and platform size is subjected to size and the load limit of barge.
Therefore, how reducing platform laid down cost, increase safety and operability in the manufacture process, is the important topic that the ocean engineering industry faces.
Summary of the invention
The present invention is directed to the problems referred to above, a kind of platform method of construction is provided, this method can make upper hull (deck box) and lower hull (lower hull) the independent construction respectively of platform, required long in time limit to solve orthodox method construction platform, it is long to take the dock time, problems such as expense costliness; Reach solution overseas utilization barge and ballast water method and build platform to the depth of water and sea calmness degree requirement height, the size of barge and the problem of load limit platform size.
To achieve these goals, platform method of construction of the present invention comprises and builds upper and lower hull step, water step under the upper and lower hull, and upper and lower hull closes up step, and outside fitting-out step, and described upper and lower hull closes up step and comprises:
Upper hull under the traction behind the water is to dock assigned address step;
The lifting upper hull is in a height and position step;
The location lower hull is in upper hull below step;
Upper and lower hull step in aggregates is closed up in butt joint.
Above-mentioned platform method of construction, wherein, described upper and lower hull closes up step and also comprises the step of preparing hanging device.
Above-mentioned platform method of construction wherein, comprises guide locating device provided and the main deck welding step in the upper and lower hull step of described construction.
Above-mentioned platform method of construction, wherein, described butt joint is closed up upper and lower hull step in aggregates and is comprised again:
Adopt the described guide locating device provided upper and lower hull positioning step that carries out;
Weld upper and lower hull step in regular turn.
Above-mentioned platform method of construction wherein, in the water step, adopts the hydraulic pushing mode that described constructed upper and lower hull is drawn respectively to a barge under the described upper and lower hull.
Above-mentioned platform method of construction wherein, adopting the hydraulic pushing mode described upper and lower hull to be drawn respectively to the barge step, also comprises the preceding preparation process of water down.
Above-mentioned platform method of construction, wherein, the preparation process before the described water down comprises that slideway is laid step and hydraulic top pushing device arranges step.
Above-mentioned platform method of construction, wherein, described hydraulic top pushing device is arranged on the described slideway and along described slideway and slides, described hydraulic top pushing device comprises pushing part, oil pipe and chest portion, described pushing part is used for contacting with the baffle plate of described upper hull/lower hull, and described chest portion provides hydraulic oil to slide along described slideway to order about the described upper hull/lower hull of described pushing part pushing tow by described oil pipe to described pushing part.
Above-mentioned platform method of construction, wherein, described hydraulic top pushing device is two groups, described two groups of hydraulic top pushing devices are about the center of gravity line symmetric arrangement of the body of being pushed boat.
Above-mentioned platform method of construction, wherein, described slideway extends to land one assigned address from the described barge that rests against the bank.
Above-mentioned platform method of construction, wherein, described slideway is divided into common slideway and the ejection slideway of described hydraulic top pushing device is set, described common slideway and ejection slideway all comprise cement slideway layer, steel plate slideway layer, following water dolly layer, bed layer and stow-wood layer from the bottom to top, described upper hull/lower hull is when described common slideway and described ejection slideway slide, the bottom of described upper hull/lower hull contacts with described stow-wood layer, and described hydraulic top pushing device is arranged on the steel plate slideway layer of described ejection slideway.
Above-mentioned platform method of construction, wherein, the steel plate slideway layer of described ejection slideway upper end is higher than its upper end of water dolly layer down.
Above-mentioned platform method of construction, wherein, described ejection slideway also comprises the transition slideway that is arranged on the described barge, and described transition slideway comprises ejection slideway steel structure support layer, steel plate slideway layer, following water dolly layer, bed layer and stow-wood layer from the bottom to top.
Above-mentioned platform method of construction, wherein, the preparation process before the described water down comprises according to the parameter of described hanging device selectes lifting bulkhead district step at described upper hull.
Above-mentioned platform method of construction, wherein, the preparation process before the described down water also comprises described upper hull is carried out the finite element analysis step.
Above-mentioned platform method of construction, wherein, preparation process and the upper and lower hull step of described construction before the described water are down carried out simultaneously.
Above-mentioned platform method of construction wherein, in described finite element analysis step, if analysis result shows that described upper hull has the zone not satisfy requirement of strength, then carries out the part to the zone that does not meet the demands and strengthens handling; If analysis result shows that described upper hull All Ranges satisfies requirement of strength, then there is tapping to carry out perforate ambient stress centralized Analysis step to described lifting bulkhead district.
Above-mentioned platform method of construction wherein, in described perforate ambient stress centralized Analysis step, if analysis result has the zone not satisfy requirement of strength around showing described perforate, then carries out the part to the zone that does not meet the demands and strengthens handling; If All Ranges satisfied requirement of strength around analysis result showed described perforate, then carry out described guide locating device provided and main deck welding step.
Above-mentioned platform method of construction, wherein, described guide locating device provided first order guide piece and the second stage guide piece of comprising, described first order guide piece comprises the axle sleeve that is arranged on the upper hull and the guiding bearing pin that is arranged on the described lower hull, when described guiding bearing pin closes up at described upper and lower hull, insert in the described axle sleeve; Described second stage guide piece is arranged on described upper hull or/and on the lower hull, it has spigot surface, and described spigot surface guides described upper and lower hull to close up and puts in place after described guide finger shaft portion inserts in the described axle sleeve.
Above-mentioned platform method of construction wherein, before a height and position step, also comprises a step that described upper hull is hung in examination in dock at described lifting upper hull.
Above-mentioned platform method of construction, wherein, after described examination hangs on hull, the lifting upper hull before a height and position step, comprise that also a pair of described lifting bulkhead district carries out the step of weld seam detection, if described lifting bulkhead district weld seam has crackle, then clear up the back welding and continue weld seam detection, weld seam does not have crackle until described lifting bulkhead district.
Above-mentioned platform method of construction wherein, tries to hang in the step of described upper hull in dock, and the pulling force that described hanging device acts on the described upper hull is 85%～95% of described upper hull weight.
Platform method of construction of the present invention has following advantage in terms of existing technologies:
1. shortened the platform construction cycle, last lower hull can be distinguished construction simultaneously, has improved and has closed up operability, has reduced the labour power expense, has good and economic;
2. in dock, utilize hanging device that upper hull is carried out lifting operation, reduced upper air installing operation number of times, increased the safety of platform construction, reduced effectively and closed up risk;
3. adopt the integral hoisting mode of closing up to carry out that upper and lower hull closes up and the whole process of closing up all is to carry out in dock, be not subjected to the restriction of surge, it is short to close up the time, closes up the precision height, satisfies the construction requirement of each classification society both at home and abroad fully.
Further, finite element analysis and stress concentration analysis by before lifting have guaranteed the structural strength in the hoisting process, thereby have guaranteed the safety of lifting.Also have, guide locating device provided is the two-stage guide piece, and when closing up, the two-stage guide piece acts on simultaneously, thereby it is simple to operate that upper and lower hull is closed up, and contraposition is accurate, has saved a large amount of time.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
Fig. 1 is the method for construction overall flow figure of platform of the present invention;
Fig. 2 closes up preceding detail flowchart for the upper and lower hull of the present invention;
Fig. 3 closes up diagram of circuit for the upper and lower hull of the present invention;
Fig. 4 closes up detail flowchart for the upper and lower hull of the present invention;
Fig. 5 is water arrangement plan under one embodiment of the invention lower hull;
Fig. 6 be under the lower hull among Fig. 5 behind the water with barge to bitmap;
Fig. 7 is water arrangement plan under one embodiment of the invention upper hull;
Fig. 8 be under the upper hull among Fig. 7 behind the water with barge to bitmap;
Fig. 9 is arranged at scheme drawing on the slideway for hydraulic top pushing device;
Figure 10 A is common slideway section-drawing;
Figure 10 B is ejection slideway section-drawing;
Figure 10 C is the transition slideway section-drawing in the ejection slideway;
Figure 11 is the scheme drawing of large-tonnage platform loop wheel machine lifting upper hull on lower hull;
Figure 12 is the suspension hook connection diagram of main deck and large-tonnage platform loop wheel machine;
Figure 13 is the upper and lower hull structure scheme drawing after closing up;
Figure 14 is the constructional drawing of the axle sleeve of the first order guide piece in guide locating device provided;
Figure 15 is the constructional drawing of the guiding bearing pin of the first order guide piece in guide locating device provided;
Figure 16 is installed in the scheme drawing of upper hull side for axle sleeve;
Figure 17 is installed in the scheme drawing of lower hull side for the guiding bearing pin;
The state of Figure 18 axle sleeve and guiding bearing pin when tentatively closing up;
Figure 19 is the constructional drawing of the second stage guide piece in guide locating device provided;
Figure 20 is the sequence of welding figure of one embodiment of the invention.
Wherein, Reference numeral
10-upper hull 11-lifting bulkhead plating
20-lower hull
300-guide locating device provided 310-first order guide piece
3110-axle sleeve, 3111-bearing
3112-steel pipe 31121-uncovered
3120-guiding bearing pin, 3121-bearing
3122-steel pipe 31221-hold back mouth
320-second stage guide piece 321-straight steel plate
322-bending steel plate, 3221-spigot surface
323-straight steel plate group
40-large-tonnage platform loop wheel machine, 48-afterbody suspension hook
49-circular grapple
50-main deck
60-slideway
610-common slideway 620-ejection slideway
6210-transition slideway
61-cement slideway layer, 61 '-ejection slideway steel structure support layer
62-steel plate slideway layer 63-following water dolly layer
64-bed layer
65-stow-wood layer
70-barge
80-hydraulic top pushing device
81-chest portion, 82-oil pipe
83-pushing part
A1, A21, A22, A31, A32, A41, A42, A43, A51, A52, A53-bulkhead
S110～S300-step
The specific embodiment
Below in conjunction with the drawings and specific embodiments technical solution of the present invention being described in detail, further understanding purpose of the present invention, scheme and effect, but is not the restriction as claims protection domain of the present invention.
As shown in Figure 1, platform method of construction of the present invention comprises and builds upper and lower hull step S110, the preparation process S120 before the following water, and water step 130 under the upper and lower hull, upper and lower hull closes up step S200, and outside fitting-out step S300.Need to prove, on the implementation, lower hull closes up in the step S200 process, need to adopt guide locating device provided 300 and lifting of follow-up introduction that 40(is set and see Figure 11 and Figure 13).
In order to shorten production cycle, upper and lower hull herein can be distinguished construction simultaneously.And, in order to guarantee that follow-up upper and lower hull closes up step and carries out smoothly, in building upper and lower hull step S110, also comprise guide locating device provided welding and weld main deck step S116 on lifting top, bulkhead district.
Consult Fig. 2, the preparation process S120 before the following water includes following steps: the parameter according to hanging device is selected lifting bulkhead district step S121 at upper hull; Upper hull is carried out finite element analysis step S122; Whether upper hull has the zone not satisfy requirement of strength determining step S123; The district has tapping to carry out perforate ambient stress centralized Analysis step S124 to the lifting bulkhead; Whether there is the zone not satisfy requirement of strength around the perforate and carries out determining step S125.Consider the safety of construct platform and guarantee follow-up carrying out of closing up step, in the preparation process S120 process before descending water, should be noted that following aspect:
(1) according to the parameter of hanging device 40 in upper hull 10 selected lifting bulkhead district step S121, mainly run through bulkhead position, selected lifting bulkhead district according to the spacing range of two crossbeams of hanging device 40 and upper hull 10.
(2) carrying out before upper hull carries out finite element analysis step S122, also needing to determine the weight of upper hull; Carry out among the finite element analysis step S122 carrying out upper hull, can adopt CATIA that whole upper hull is had the limit meta-model, weight according to upper hull, after having applied boundary condition whole upper hull is carried out strength analysis, whether carry out upper hull then has the zone not satisfy requirement of strength judgement (step S123), if judged result does not satisfy requirement of strength for the zone is arranged, then the part is carried out in the zone of not satisfying requirement of strength and strengthen handling (step S112), if disconnected result does not satisfy requirement of strength for there being the zone, then there is tapping to carry out perforate ambient stress centralized Analysis (step S124) to lifting bulkhead district.
(3) according to the stress concentration analysis result, judge (step S125) to whether having the zone not satisfy requirement of strength around the perforate, if judged result is to have the zone not satisfy requirement of strength around the perforate, then the part is carried out in the zone that does not meet the demands and strengthen handling (step S114), if judged result is that All Ranges satisfies requirement of strength around the perforate, and guarantee upper and lower hull welding good guide locating device provided 300 and guaranteeing to have welded main deck after then can carry out water step 130 under the upper and lower hull.
(4) after All Ranges satisfies requirement of strength around the perforate, just can carry out guide locating device provided welding and weld main deck step S116 on lifting top, bulkhead district, wherein, guide locating device provided be that subsequent content introduces guide locating device provided 300, and main deck 50 is welded on the lifting bulkhead plating 11 in above-mentioned selected good lifting bulkhead district (seeing Figure 12).Like this, just calculate the construction of finally finishing upper and lower hull.
When carrying out above-mentioned steps, also can descend laying slideway and the step S126 that lays hydraulic top pushing device among the preceding preparation process S120 of water, to save the cycle of whole construction platform.The step S125 that lays slideway and laying hydraulic top pushing device will be introduced in subsequent content.
Consult Fig. 5 to Fig. 9, water step 130 comprises under the upper and lower hull of the present invention: utilize earlier on the slideway 60 hydraulic top pushing device 80 with lower hull 20 pushing tows to barge 70, make lower hull 20 floating launchings (that is, swimming in a certain position in the deep-sea) by barge 70; Then, again slideway 60 utilize hydraulic top pushing device 80 with upper hull 10 pushing tows to barge 70, close up step S200 in order to carry out follow-up upper and lower hull.
Outside fitting-out of the present invention is the same with prior art, also finishes in the fitting-out quay, just seldom does at this and gives unnecessary details.Below upper and lower hull closed up step do detailed introduction.
Consult Fig. 3 to Fig. 4 also in conjunction with consulting Figure 11 to Figure 13, upper and lower hull closes up step S200 and comprises two big steps: preparation process S210, S220 and on-site hoisting before closing up close up step S230.
Particularly, the step S210 that closes up in the preceding preparation comprises again:
(1) the preparation process S211 of hanging device, as shown in Figure 2, in order to shorten the production cycle of platform, this step can be with the upper and lower hull step of aforesaid construction S110, the preparation process S120 before the water carries out simultaneously down.In the present embodiment, the hanging device of preparing 40 be on September 9th, 2009 Granted publication, the patent No. is disclosed large-tonnage platform loop wheel machine in " ZL200710014919.6 " patent document, owing in this patent document, described the structure of large-tonnage platform loop wheel machine in detail, just seldom done at this and give unnecessary details.
(2) will descend upper hull traction behind the water to a dock assigned address step S212.That is, by tugboat the barge 70 of the carrying upper hull 10 in the step 130 is transported to an assigned address in the dock, in order to carry out subsequent step.
Before formally closing up, comprise that also one tries to hang step S220.Step S220 is hung in this examination: use barge to transport upper hull under large-tonnage platform loop wheel machine 40, as shown in figure 12, comprising that afterbody suspension hook 48 and circular grapple 49(are namely, the patent No. is afterbody equalizing bar 28 and the circular grapple 29 in the ZL200710014919.6 open file) third stage suspension hook be suspended to (main deck 50 is arranged on the lifting bulkhead district of upper hull 10) on the main deck 50, first-class cutting ferrule, tight a bolt, test hoists, when hoisting test, it is that 85%～95%(of upper hull weight is preferably 90% that hanging device acts on pulling force on the upper hull), so that upper hull 10 does not break away from barge, and keep about 1 hour (that is, examination hang on hull S221).After examination is hung, also need lifting bulkhead district is carried out weld seam detection (step S222), lift the bulkhead district then and whether have crackle judgement (step S223), if lifting bulkhead district has crackle, again weld (step S224) after then cracked zone being cleared up and continue weld seam detection, the district does not have crackle until the lifting bulkhead, need to prove herein, comprises the judgement that whether main deck and lifting weld, bulkhead district is had crackle among the step S223.Then, when weather allows in the planned time section, formally carry out the lifting of upper hull.
Consult Fig. 4, Figure 11 and Figure 13, on-site hoisting closes up step S230 and comprises again:
Step S231, in dock, utilize hanging device 40 lifting upper hulls 10 to be positioned a height and position upper hull 10.
Step S232, in dock, lower hull 20 is positioned below the above-mentioned upper hull of having good positioning.That is, barge 70 rolls dock away from, utilizes this barge 70 then and the lower hull 20 that swims in a certain position in the deep-sea in the step 130 is transported to the upper hull below of having good positioning in conjunction with tugboat.
Step S233, whereabouts upper hull 10 utilize guide locating device provided 300 to carry out upper and lower hull location on lower hull 20.
Step S234, the upper and lower hull that will have good positioning weld in regular turn, and unload the pulling force that hanging device 40 acts on the upper hull correspondence position one by one according to the welding process, satisfy load bearing requirements until all welds.The sequence of welding figure of an embodiment provided herein sees also Figure 20, during welding, carries out the welding of bulkhead A1 earlier; Carry out the welding of bulkhead A21, A22 then; Carry out the welding of bulkhead A31, A32 then; Carry out the welding of bulkhead A41, A42, A43 again; Carry out the welding of bulkhead A51, A52, A53 at last.Certainly, this sequence of welding only is the same in the multiple sequence of welding, when actual welding, can adopt different sequence of welding according to the situation of closing up and the operability of upper and lower hull.
Below the structure of slideway 60 and hydraulic top pushing device 80 is described in detail.
Consult Fig. 5 to Figure 10 C, slideway 60 extends to land one assigned address from the barge 70 that rests against the bank, and (this position is by last, the size of hull and the determining positions at place thereof), slideway 60 is divided into common slideway 610 and is used for arranging the ejection slideway 620 of hydraulic top pushing device 80, shown in Figure 10 A and Figure 10 B, common slideway 610 and ejection slideway 620 all comprise cement slideway layer 61(Concrete standing way from the bottom to top), steel plate slideway layer 62(Steel skid way), following water dolly layer 63(skid Roller), bed layer 64(Cradle) and stow-wood layer 65(Wedges), when upper hull/lower hull slides at slideway 60, the bottom of upper hull/lower hull contacts with stow-wood layer 65, hydraulic top pushing device 80 is arranged on the steel plate slideway layer 62 of ejection slideway 620, in order to be beneficial to the laying of hydraulic top pushing device 80, steel plate slideway layer 62 upper ends of ejection slideway 620 are higher than the upper end of water dolly layer 63 down, further, also the steel plate than the steel plate slideway layer 62 in the common slideway 610 is thick for the steel plate thickness of the steel plate slideway layer 62 of ejection slideway 620.
The use of hydraulic top pushing device 80 for convenience, ejection slideway 620 also comprises the transition slideway 6210 that is arranged on the barge 70, see Fig. 5 and Figure 10 C, transition slideway 6210 comprises ejection slideway steel structure support layer 61 ', steel plate slideway layer 62, following water dolly layer 63, bed layer 64 and stow-wood layer 65 from the bottom to top, and this ejection slideway steel structure support layer 61 ' is used for being arranged on barge 70.
As shown in Figure 9, hydraulic top pushing device 80 comprises pushing part 83, oil pipe 82 and chest portion 81, pushing part 83 is used for contacting with the baffle plate of upper hull/lower hull, and chest portion 81 provides hydraulic oil to slide along slideway 60 to order about pushing part pushing tow upper hull/lower hull by oil pipe 82 to pushing part 83.
In the present embodiment, hydraulic top pushing device 80 is two groups, and these two groups of hydraulic top pushing devices are about the center of gravity line symmetric arrangement of the body of being pushed boat.The course of action of hydraulic top pushing device 80 is: pushing part 83 stretches out a segment distance, make upper hull/lower hull slide same distance at stow-wood layer 65, during end position that the distance of stretching out when pushing part 83 is stretched out for it, promotion chest portion 81 advances to pushing part 83 relative chest portion 81 and is positioned at the normal position, repeat next and stretch out action, until promoting upper hull/lower hull and barge 70 contrapositions (as Fig. 6 and Fig. 8).
Need to be described as follows some herein:
1, in order to save resource, adopts same barge 70 with water under the upper and lower hull, and adopt same barge to deliver upper and lower hull and close up to carry out upper and lower hull.Consider the load-carrying capacity of barge, the preferred moral of present embodiment inspires confidence in barge No. 2.
2, slideway 60 is the segmentation slideway, and detachable.When drawing upper and lower hull, need be according to the difference of traction object, the on-the-spot slideway of laying.On-the-spot when laying slideway, according to the difference of traction object, distance between slideway and the length of slideway are set.
When 3, slideway is laid, lay from bottom to top by crane, will guarantee the slideway straightness accuracy in 20mm after laying is finished, and height is suitable; The slideway end face keeps higher degree of lubrication, the coefficient of as far as possible reducing friction, and slideway and slideway ground have enough intensity simultaneously, are enough to bear the above gravity of ton.
4, need after slideway lays to check slideway intensity in conjunction with the strength analysis of finite element, also want yield strength and the buckling strength of the upper and lower hull of analytical structure and pushing part contact position (namely, pushing tow point) and surrounding structure simultaneously, guarantee the machinery safety of water conservancy project journey down.
Below to guide locating device provided 300 describing in detail of adopting in the platform method of construction of the present invention:
Consult Figure 13, of the present invention guide locating device provided 300, mainly in order to upper hull 10, the lower hull 20 of guide-localization platform, this guide locating device provided 300 comprises first order guide piece 310 and second stage guide piece 320.
Consult Figure 14 to Figure 18, first order guide piece 310 comprises axle sleeve 3110 and guiding bearing pin 3120, and wherein, axle sleeve 3110 is by bearing 3111 and form with uncovered 31121 steel pipe 3112, bearing 3111 is installed in a side of upper hull 10 bottoms, so that axle sleeve 3110 is arranged on the upper hull 10; The steel pipe 3122 that guiding bearing pin 3120 is held back mouth 31221 by bearing 3121 and band is formed, and this is held back, and mouth 31221 is corresponding with uncovered 31121, and bearing 3121 is installed in a side on lower hull 20 tops, and bearing pin 3120 is arranged on the lower hull 20 leading.When upper and lower hull closed up, guiding bearing pin 3120 inserted in the axle sleeve 3110, in order to carry out preliminary contraposition.Regulate for convenience whole home position, allow upper and lower hull that by a small margin movement is arranged in limited space, the huge stress that brings during with the buffering assembling, the internal diameter of uncovered steel pipe 3112 is greater than the external diameter of holding back mouthful steel pipe 3122.Like this, this first order guide piece 310 can limit skew and the slewing area between the upper and lower hull, and the accurate contraposition of leading for the second stage provides necessary condition
In order to locate upper and lower hull preferably, first order guide piece 310 is two covers, is separately positioned on stem and ship stern, the observation of contraposition for convenience, and two cover first order guide piecees 310 are arranged on the homonymy of hull.
Consult the constructional drawing of the second stage guide piece of Figure 19 first embodiment of the invention, second stage guide piece 320 is combined by four straight steel plates 321 and a bending steel plate 322, four straight steel plates are arranged to straight steel plate group 323 side by side at interval, the top of straight steel plate group 323 has the curve corresponding with bending steel plate 322 curved shapes, bending steel plate 322 is arranged at curve, and bending steel plate 322 can adopt welding commonly used with the connection mode of steel plate group 323 herein.Have spigot surface 3221 on the bending steel plate 322, preferably, spigot surface 3221 is sector.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (17)
1. a platform method of construction comprises and builds upper and lower hull step, water step under the upper and lower hull, and upper and lower hull closes up step, and outside fitting-out step, it is characterized in that, and described upper and lower hull closes up step and comprises:
Upper hull under the traction behind the water is to dock assigned address step;
The lifting upper hull is in a height and position step;
The location lower hull is in upper hull below step;
Upper and lower hull step in aggregates is closed up in butt joint;
Wherein, in the water step, adopt the hydraulic pushing mode that described constructed upper and lower hull is drawn respectively to a barge under the described upper and lower hull;
Adopting described hydraulic pushing mode described upper and lower hull to be drawn respectively to the barge step, also comprising the preparation process before the water down, the preparation process before the described water down comprises that slideway laying step and hydraulic top pushing device arrange step;
Described hydraulic top pushing device is arranged on the described slideway and along described slideway and slides, described hydraulic top pushing device comprises pushing part, oil pipe and chest portion, described pushing part is used for contacting with the baffle plate of described upper hull/lower hull, and described chest portion provides hydraulic oil to slide along described slideway to order about the described upper hull/lower hull of described pushing part pushing tow by described oil pipe to described pushing part.
2. platform method of construction according to claim 1 is characterized in that, described upper and lower hull closes up step and also comprises the step of preparing hanging device.
3. platform method of construction according to claim 2 is characterized in that, comprises guide locating device provided and the main deck welding step in the upper and lower hull step of described construction.
4. platform method of construction according to claim 3 is characterized in that, described butt joint is closed up upper and lower hull step in aggregates and comprised again:
Adopt the described guide locating device provided upper and lower hull positioning step that carries out;
Weld upper and lower hull step in regular turn.
5. platform method of construction according to claim 1 is characterized in that, described hydraulic top pushing device is two groups, and described two groups of hydraulic top pushing devices are about the center of gravity line symmetric arrangement of the body of being pushed boat.
6. platform method of construction according to claim 1 is characterized in that, described slideway extends to land one assigned address from the described barge that rests against the bank.
7. platform method of construction according to claim 6, it is characterized in that, described slideway is divided into common slideway and the ejection slideway of described hydraulic top pushing device is set, described common slideway and ejection slideway all comprise cement slideway layer, steel plate slideway layer, following water dolly layer, bed layer and stow-wood layer from the bottom to top, described upper hull/lower hull is when described common slideway and described ejection slideway slide, the bottom of described upper hull/lower hull contacts with described stow-wood layer, and described hydraulic top pushing device is arranged on the steel plate slideway layer of described ejection slideway.
8. platform method of construction according to claim 7 is characterized in that, the steel plate slideway layer upper end of described ejection slideway is higher than its upper end of water dolly layer down.
9. platform method of construction according to claim 7, it is characterized in that, described ejection slideway also comprises the transition slideway that is arranged on the described barge, and described transition slideway comprises ejection slideway steel structure support layer, steel plate slideway layer, following water dolly layer, bed layer and stow-wood layer from the bottom to top.
10. platform method of construction according to claim 3 is characterized in that, the preparation process before the described water down comprises according to the parameter of described hanging device selectes lifting bulkhead district step at described upper hull.
11. platform method of construction according to claim 10 is characterized in that, the preparation process before the described down water also comprises described upper hull is carried out the finite element analysis step.
12., it is characterized in that preparation process and the upper and lower hull step of described construction before the described water are down carried out simultaneously according to claim 1,10 or 11 described platform methods of construction.
13. platform method of construction according to claim 11 is characterized in that, in described finite element analysis step, if analysis result shows that described upper hull has the zone not satisfy requirement of strength, then the part is carried out in the zone that does not meet the demands and strengthens handling; If analysis result shows that described upper hull All Ranges satisfies requirement of strength, then there is tapping to carry out perforate ambient stress centralized Analysis step to described lifting bulkhead district.
14. platform method of construction according to claim 13, it is characterized in that, in described perforate ambient stress centralized Analysis step, if analysis result has the zone not satisfy requirement of strength around showing described perforate, then the part is carried out in the zone that does not meet the demands and strengthen handling; If All Ranges satisfied requirement of strength around analysis result showed described perforate, then carry out described guide locating device provided and main deck welding step.
15. platform method of construction according to claim 10 is characterized in that, before a height and position step, also comprises a step that described upper hull is hung in examination in dock at described lifting upper hull.
16. platform method of construction according to claim 15, it is characterized in that, after described examination hangs on hull, the lifting upper hull before a height and position step, comprise that also a pair of described lifting bulkhead district carries out the step of weld seam detection, if described lifting bulkhead district weld seam has crackle, then clear up the back welding and continue weld seam detection, weld seam does not have crackle until described lifting bulkhead district.
17. platform method of construction according to claim 15 is characterized in that, tries to hang in the step of described upper hull in dock, the pulling force that described hanging device acts on the described upper hull is 85%～95% of described upper hull weight.
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| CN 201010122201 CN102190065B (en) | 2010-03-10 | 2010-03-10 | Construction method for ocean platform |
| CN201310125631.1A CN103213654B (en) | 2010-03-10 | 2010-03-10 | A kind of method of construction of platform |
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| CN104328773B (en) * | 2014-09-25 | 2016-04-20 | 太平洋海洋工程（舟山）有限公司 | Entirety built by sea work accommodation platform |
| CN104859788B (en) * | 2015-05-08 | 2018-05-04 | 中国海洋石油集团有限公司 | A kind of quick method of construction of octagonal FDPSO |
| CN107097911B (en) * | 2016-02-23 | 2019-04-30 | 中国国际海运集装箱(集团)股份有限公司 | The method of construction of semi-submerged platform |
| CN106184615B (en) * | 2016-06-30 | 2018-10-30 | 海阳中集来福士海洋工程有限公司 | The method of construction of semisubmersible platform |
| TWI660883B (en) * | 2017-09-06 | 2019-06-01 | 吳兆誠 | A vertical production method of ocean floating platform |
| CN108945297A (en) * | 2018-07-27 | 2018-12-07 | 广船国际有限公司 | A kind of watercraft engine room location segment division methods |
| CN110356980B (en) * | 2019-07-16 | 2020-08-14 | 宏华海洋油气装备（江苏）有限公司 | Novel integral platform hoisting launching method |
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| CN102190065A (en) | 2011-09-21 |
| CN103213654B (en) | 2015-11-18 |
| CN103213654A (en) | 2013-07-24 |
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