CN109094753A - One kind supporting and lifting formula semi-submersible offshore engineering platform and undocks scheme - Google Patents
One kind supporting and lifting formula semi-submersible offshore engineering platform and undocks scheme Download PDFInfo
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- CN109094753A CN109094753A CN201810927609.1A CN201810927609A CN109094753A CN 109094753 A CN109094753 A CN 109094753A CN 201810927609 A CN201810927609 A CN 201810927609A CN 109094753 A CN109094753 A CN 109094753A
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- floating body
- platform
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- additional floating
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- 238000007667 floating Methods 0.000 claims abstract description 78
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000003651 drinking water Substances 0.000 claims abstract description 8
- 235000020188 drinking water Nutrition 0.000 claims abstract description 8
- 238000000926 separation method Methods 0.000 claims abstract description 6
- 238000003032 molecular docking Methods 0.000 claims description 13
- 230000000994 depressogenic effect Effects 0.000 claims description 4
- 238000005188 flotation Methods 0.000 claims description 3
- 239000003643 water by type Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003653 coastal water Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003657 drainage water Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C3/00—Launching or hauling-out by landborne slipways; Slipways
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Revetment (AREA)
Abstract
Formula semi-submersible offshore engineering platform is supported and lifted the invention discloses one kind to undock scheme.The additional buoyancy that there is provided including the use of additional floating body and target semi-submerged platform is supported and lifted, makes target semi-submerged platform with suitable drinking water floating, smoothly undock the stage；After target semi-submerged platform drags depth of water confined area away from, additional floating body is loaded, makes additional floating body and the big stage of target semi-submerged platform separation phase two.The problem that water level is insufficient when the present invention undocks for semi-submersible offshore engineering platform, draft is limited provides a solution.
Description
Technical field
Formula semi-submersible offshore engineering platform is supported and lifted the present invention relates to one kind to undock scheme.
Background technique
With the continuous development of international ocean engineering technology, the mankind gradually extend to deep-sea by coastal waters to the exploration of ocean.
Semi-submersible offshore platform is the sharp weapon that the mankind explore deep-sea, is the forward position ocean engineering technology that various countries fall over each other research and development, possesses wide
Prospect and market.World trends are complied with, according to the "Oceanic" strategy in China, domestic ship marine worker manufacturing industry is bound to improve energetically
The research and development of this weight equipment of deep-water semi-submersible platform manufacture strength.
The features such as semi-submerged platform has from great, and Payload is big, and complicated sea situation is adaptable.It is floated simultaneously because it is provided
The lower floating body of power is smaller with respect to for bed rearrangement platform, therefore platform drinking water is larger, and wherein the semi-submerged platform of deep water is commonly designed sky
Load draft can be more than 10 meters (from baselines to waterline).However the attainable depth of water of each building and repair plant's dry dock institute is mostly small along the Yangtze River
In 10 meters.Deep water large-scale semi-submerged platform is difficult to pass in and out the dock of the major building and repair plant of THE LOWER YANGTZE VALLEY.This limiting factor of the depth of water is very big
Hinder Yangtze river basin deep-water semi-submersible platform builds ability, is unable to fully call Industrial Resources along the Yangtze River, weakens production
Industry competitiveness.
Accordingly, it is desirable to provide a kind of new technical method solves above-mentioned predicament, sufficiently release and the Yangtze river basin is played
Ship and offshore equipment manufacturing industry ability.
Summary of the invention
Formula semi-submersible offshore engineering platform is supported and lifted the technical problem to be solved in the present invention is to provide one kind to undock scheme.
To realize the above-mentioned technical purpose, the present invention adopts the following technical scheme:
One kind supporting and lifting formula semi-submersible offshore engineering platform and undocks scheme, including additional floating body supports and lifts target semi-submerged platform and undocks the stage
With additional floating body and target semi-submerged platform separation phase.
The additional floating body support and lift target semi-submerged platform undock the stage the following steps are included:
Step 1: it according to the limitation depth of water of confined area come extreme draft permitted when determining that platform undocks, calculates and is eaten at this
Additional buoyancy and hull position needed for underwater platform；
Step 2: according to required additional buoyancy selection specification, suitable additional floating body provides corresponding buoyancy；
Step 3: according to the distribution situation of additional floating body and target semi-submerged platform intensity and docking block, suitable quantity and rule are chosen
Lattice support and lift bottom beam, and determine the contact position for supporting and lifting bottom beam and floating body bottom plate and platform buoyancy tank bottom plate；
Step 4: will support and lift bottom beam and additional floating body is rigidly connected, and supports and lifts bottom beam end and does round corner treatment；
Step 5: hindering to support and lift the docking block that bottom beam passes through on the inside of target of dismantling semi-submerged platform, and additional floating body is enable to pass through；
Step 6: mesh is moved on to by the additional floating body for supporting and lifting bottom beam is connected with using tugboat or other feasible patterns after opening dock gate
It marks near semi-submerged platform；
Step 7: additional floating body carries out uniform ballast to additional floating body afterwards in place or closes dock gate, reduces ship to dock internal drainage
Water level in depressed place is until support and lift bottom beam lower than target semi-submerged platform 0.1 ~ 1.5m of bottom；Additional floating body is dragged to target semi-submerged platform
Near the target position of underface；
Step 8: dock gate is closed to carrying out water filling in dock or carry out uniformly row to additional floating body to carry so that supporting and lifting bottom beam and flat
Table flotation bottom plate is gradually bonded；During being gradually bonded, dynamic positioning is carried out to additional floating body and guarantees to reach pre- when fitting
The center of additional buoyancy needed for determining bonding position, guaranteeing the centre of buoyancy and target semi-submerged platform of additional floating body offer is in same lead
On vertical line；Need to guarantee that additional floating body is in upright condition simultaneously；
Step 9: at the same to carried out in dock water filling and to additional floating body carry out uniformly row carry, until target semi-submerged platform with
Predetermined drinking water floating, and reach the safety clearance 0.5 ~ 2m between mesa base and docking block, target half is made in the way of tugboat etc.
The depth of waters confined areas such as latent platform smoothly undocks, shoal.
Additional floating body and target semi-submerged platform separation phase the following steps are included:
Step A: after target semi-submerged platform leaves depth of water confined area, to uniform load is carried out in additional floating body, when additional floating body
The buoyancy of offer is only 200 ~ 2000 tons remaining, additional floating body and tugboat can be mounted；
Step B: continuing to uniform load in additional floating body, until supporting and lifting bottom beam is lower than target semi-submerged platform 0.1 ~ 1.5m of bottom,
The hawser or other non-rigid connections that additional floating body is connect with target semi-submerged platform can be unclamped, and is dragged additional floating body with tugboat
Region immediately below target semi-submerged platform out, is finally completed detached job.
The problem that water level is insufficient when the present invention undocks for semi-submersible offshore engineering platform, draft is limited provides solution
Scheme, method of the invention can support and lift semi-submersible offshore engineering platform, and deep water large-scale semi-submerged platform is smoothly passed in and out
The dock of the major building and repair plant of THE LOWER YANGTZE VALLEY.
Detailed description of the invention
Fig. 1 is target semi-submerged platform Light Draft plan of waterlines；
Fig. 2 is target semi-submerged platform plan of waterlines after additional buoyancy；
Fig. 3 is additional floating body of the present invention and supports and lifts bottom beam assembling schematic diagram；
Fig. 4 is disassembly docking block schematic diagram；
Fig. 5 is after additional floating body reaches target semi-submerged platform nearby, by uniform ballast, makes to support and lift bottom beam partly latent lower than target flat
The platform bottom effective clearance 0.1 ~ 1.5m schematic diagram；
Fig. 6 is that additional floating body enters target position schematic diagram in a manner of towage；
Fig. 7 is to make target semi-submerged platform with predetermined to carrying out water filling in dock and carry out uniformly row to additional floating body to carry simultaneously
Drinking water floating, and reach the process schematic of the safety clearance 0.5 ~ 2m between mesa base and docking block；
Fig. 8 is, by uniform ballast, to make to support and lift bottom beam lower than target semi-submerged platform bottom after target semi-submerged platform leaves restricted waters
The portion effective clearance 0.1 ~ 1.5m schematic diagram；
Fig. 9 is that additional floating body and target semi-submerged platform are kept completely separate schematic diagram；
In figure: 1. target semi-submerged platforms, 2. support and lift bottom beam, 3. additional floating bodies, 4. docking blocks, 5 bollards, 6. mooring lines, 7. towing cables,
8. tugboat.
Specific embodiment
In order to deepen the understanding of the present invention, below in conjunction with embodiment and attached drawing, the invention will be further described, should
The examples are only for explaining the invention, is not intended to limit the scope of the present invention..
1 Light Draft 10m of target semi-submerged platform, as shown in Figure 1.Dock bottom is -6.8m away from zero tide level, and docking block is used in construction
4 height about 1.8m, tidal level, which is stablized, when platform is lauched is higher than 3.3m.To guarantee safety, the safety clearance of 1m, therefore target need to be reserved
Drinking water reaches 7.3m when semi-submerged platform 1 is lauched, as shown in Figure 2.
According to 1 weight center of gravity related parameter choosing appropriate gauge of water level condition and target semi-submerged platform in depressed place when being lauched
Additional floating body 3.According to the distribution situation of additional floating body 3 and 1 intensity of target semi-submerged platform and docking block 4, choose suitable quantity and
Specification supports and lifts bottom beam 2, and determines the contact position for supporting and lifting bottom beam 2 and floating body bottom plate and platform buoyancy tank bottom plate, is assembled,
Synthesis additional floating body 3 as shown in Figure 3.
It hinders to support and lift the docking block 4 that bottom beam 2 passes through on the inside of target of dismantling semi-submerged platform 1, additional floating body 3 is enable smoothly to lead to
It crosses, as shown in Figure 4.
After opening dock gate, water level 6.8m is moved on to additional floating body 3 near target semi-submerged platform 1 using tugboat 8.Then
Uniform ballast is carried out until supporting and lifting bottom beam 2 lower than 1 bottom plate 0.5m of target semi-submerged platform, as shown in Figure 5 to additional floating body 3.It will be attached
Floating body 3 is added to drag to 1 underface target position of target semi-submerged platform, as shown in Figure 6.
Dock gate is closed, to carrying out water filling in dock or uniformly arrange to additional floating body 3 to carry so that supporting and lifting bottom beam 2 and flat
Table flotation bottom plate is gradually bonded.During the bonding process, it is accurately positioned, can refer to Fig. 6.
Simultaneously to carried out in dock water filling and to additional floating body 3 carry out uniformly arrange carry, until target semi-submerged platform 1 is with pre-
Surely drinking water 7.3m floating, and reach the safety clearance 1m between mesa base and docking block 4, water level reaches 10.1m in depressed place at this time, such as schemes
Shown in 7.
Herein under drinking water state, target semi-submerged platform 1 is that may be selected to undock safely under suitable tidal level, be detached from and restricted water supply
Domain.
After target semi-submerged platform 1 leaves depth of water confined area in this way, uniform load is carried out to additional floating body 3, is made
Bottom beam 2 is supported and lifted lower than 1 effective clearance bottom plate 0.5m of target semi-submerged platform, as shown in figure 8, additional floating body 3 is utilized tugboat 8 etc.
It is hauled out immediately below target semi-submerged platform 1, completes separation, as shown in Figure 9.
Claims (7)
1. one kind supports and lifts formula semi-submersible offshore engineering platform and undocks scheme, which is characterized in that support and lift target half including additional floating body
Latent platform undocks stage and additional floating body and target semi-submerged platform separation phase.
2. one kind according to claim 1 supports and lifts formula semi-submersible offshore engineering platform and undocks scheme, which is characterized in that described
Additional floating body support and lift target semi-submerged platform undock the stage the following steps are included:
Step 1: it according to the limitation depth of water of confined area come extreme draft permitted when determining that platform undocks, calculates and is eaten at this
Additional buoyancy and hull position needed for underwater platform；
Step 2: additional floating body is selected to provide corresponding buoyancy according to required additional buoyancy；
Step 3: according to the distribution situation of additional floating body and target semi-submerged platform intensity and docking block, suitable quantity and rule are chosen
Lattice support and lift bottom beam, and determine the contact position for supporting and lifting bottom beam and floating body bottom plate and platform buoyancy tank bottom plate；
Step 4: will support and lift bottom beam and additional floating body is rigidly connected, and supports and lifts bottom beam end and does round corner treatment；
Step 5: hindering to support and lift the docking block that bottom beam passes through on the inside of target of dismantling semi-submerged platform, and additional floating body is enable to pass through；
Step 6: mesh is moved on to by the additional floating body for supporting and lifting bottom beam is connected with using tugboat or other feasible patterns after opening dock gate
It marks near semi-submerged platform；
Step 7: additional floating body carries out uniform ballast to additional floating body afterwards in place or closes dock gate to dock internal drainage, reduces ship
Water level in depressed place is until support and lift bottom beam lower than target semi-submerged platform 0.1 ~ 1.5m of bottom；Additional floating body is dragged to target semi-submerged platform
Near the target position of underface；
Step 8: dock gate is closed to carrying out water filling in dock or carry out uniformly row to additional floating body to carry so that supporting and lifting bottom beam and flat
Table flotation bottom plate is gradually bonded；During being gradually bonded, dynamic positioning is carried out to additional floating body and guarantees to reach pre- when fitting
The center of additional buoyancy needed for determining bonding position, guaranteeing the centre of buoyancy and target semi-submerged platform of additional floating body offer is in same lead
On vertical line；Need to guarantee that additional floating body is in upright condition simultaneously；
Step 9: at the same to carried out in dock water filling and to additional floating body carry out uniformly row carry, until target semi-submerged platform with
Predetermined drinking water floating, and reach the safety clearance 0.5 ~ 2m between mesa base and docking block, target half is made in the way of tugboat etc.
The depth of waters confined areas such as latent platform smoothly undocks, shoal.
3. one kind according to claim 1 supports and lifts formula semi-submersible offshore engineering platform and undocks scheme, which is characterized in that described
Additional floating body and target semi-submerged platform separation phase the following steps are included:
Step A: after target semi-submerged platform leaves depth of water confined area, to uniform load is carried out in additional floating body, when additional floating body
The buoyancy of offer is only 200 ~ 2000 tons remaining, and additional floating body and tugboat are mounted；
Step B: continuing to uniform load in additional floating body, until supporting and lifting bottom beam is lower than target semi-submerged platform 0.1 ~ 1.5m of bottom,
The hawser or other non-rigid connections that additional floating body is connect with target semi-submerged platform can be unclamped, and is dragged additional floating body with tugboat
Region immediately below target semi-submerged platform out, is finally completed detached job.
4. one kind according to claim 2 supports and lifts formula semi-submersible offshore engineering platform and undocks scheme, which is characterized in that described
In step 2, adding floating body is barge or semi-submerged ship.
5. one kind according to claim 2 supports and lifts formula semi-submersible offshore engineering platform and undocks scheme, which is characterized in that described
In step 3, supporting and lifting bottom beam is that I-beam or truss structure are constituted；Supporting and lifting bottom beam includes padding.
6. one kind according to claim 2 supports and lifts formula semi-submersible offshore engineering platform and undocks scheme, which is characterized in that described
In step 4, supports and lifts bottom beam and additional floating body is welded to connect.
7. one kind according to claim 2 supports and lifts formula semi-submersible offshore engineering platform and undocks scheme, which is characterized in that described
It is fixed using the dynamic carried out with cable to additional floating body during supporting and lifting bottom beam and being gradually bonded with platform buoyancy tank bottom plate in step 9
Position.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810927609.1A CN109094753A (en) | 2018-08-15 | 2018-08-15 | One kind supporting and lifting formula semi-submersible offshore engineering platform and undocks scheme |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810927609.1A CN109094753A (en) | 2018-08-15 | 2018-08-15 | One kind supporting and lifting formula semi-submersible offshore engineering platform and undocks scheme |
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| CN109094753A true CN109094753A (en) | 2018-12-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110155272A (en) * | 2019-05-25 | 2019-08-23 | 招商局重工（江苏）有限公司 | Flexibility for ultra-large type binary semi-submerged platform lifts the method for undocking |
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|---|---|---|---|---|
| GB2313345A (en) * | 1996-05-23 | 1997-11-26 | James Kenneth Dobson | Dry docking pontoon for nuclear powered submarines |
| CN1891569A (en) * | 2005-06-27 | 2007-01-10 | 大宇造船海洋株式会社 | Method and device for causing a ship to dive by using additional buoyancy |
| KR20150137353A (en) * | 2014-05-29 | 2015-12-09 | 현대중공업 주식회사 | An addition buoyancy tank seperate structure of a Semi-submersible |
| CN205396481U (en) * | 2016-03-09 | 2016-07-27 | 中国海洋石油总公司 | A flotation tank module for platform undocks provides buoyancy |
| CN106167078A (en) * | 2016-08-26 | 2016-11-30 | 山东南海气囊工程有限公司 | A kind of boats and ships and drilling platforms floating aid system and construction method |
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-
2018
- 2018-08-15 CN CN201810927609.1A patent/CN109094753A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2313345A (en) * | 1996-05-23 | 1997-11-26 | James Kenneth Dobson | Dry docking pontoon for nuclear powered submarines |
| CN1891569A (en) * | 2005-06-27 | 2007-01-10 | 大宇造船海洋株式会社 | Method and device for causing a ship to dive by using additional buoyancy |
| KR20150137353A (en) * | 2014-05-29 | 2015-12-09 | 현대중공업 주식회사 | An addition buoyancy tank seperate structure of a Semi-submersible |
| CN205396481U (en) * | 2016-03-09 | 2016-07-27 | 中国海洋石油总公司 | A flotation tank module for platform undocks provides buoyancy |
| CN106167078A (en) * | 2016-08-26 | 2016-11-30 | 山东南海气囊工程有限公司 | A kind of boats and ships and drilling platforms floating aid system and construction method |
| CN205916302U (en) * | 2016-08-26 | 2017-02-01 | 山东南海气囊工程有限公司 | Boats and ships and drilling platform help superficial system |
| CN107323633A (en) * | 2017-05-26 | 2017-11-07 | 广州中船文冲船坞有限公司 | Self-elevating drilling platform lies up and its undocked method |
Non-Patent Citations (1)
| Title |
|---|
| 李冉: "张力腿平台出坞助浮关键技术研究", 《中国优秀硕士论文电子期刊工程技术Ⅱ辑》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110155272A (en) * | 2019-05-25 | 2019-08-23 | 招商局重工（江苏）有限公司 | Flexibility for ultra-large type binary semi-submerged platform lifts the method for undocking |
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Application publication date: 20181228 |