CN115748633A - Construction method for hoisting by combining multiple fans with mobile wharf - Google Patents
Construction method for hoisting by combining multiple fans with mobile wharf Download PDFInfo
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- CN115748633A CN115748633A CN202211446694.2A CN202211446694A CN115748633A CN 115748633 A CN115748633 A CN 115748633A CN 202211446694 A CN202211446694 A CN 202211446694A CN 115748633 A CN115748633 A CN 115748633A
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- 238000010276 construction Methods 0.000 title claims abstract description 48
- 238000007667 floating Methods 0.000 claims abstract description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000002689 soil Substances 0.000 claims abstract description 30
- 230000003139 buffering effect Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The invention discloses a construction method for combining a plurality of fans and hoisting a mobile wharf, which comprises the following steps: the construction method is characterized in that a semi-submersible type lifting ship sits on a soft soil layer in a shallow water area, self-elevating type mounting platforms are distributed at the side end of the semi-submersible type lifting ship and are inserted into the soft soil layer in the shallow water area, two sets of mooring systems correspondingly moor two fan floating bodies on the semi-submersible type lifting ship to form a construction structure for lifting one or more fans in combination with a movable wharf, and therefore the construction method is used for lifting one or more fans on the sea. Because the soft soil layer of the shallow water area at the bottom of the semi-submersible type hoisting ship bears the hoisting load of the fan, and the self-elevating type mounting platform bears the load during hoisting, the problem that the construction period is long in newly-built wharfs capable of bearing the hoisting load of the fan is solved, and the offshore construction efficiency with a specific time window period is improved.
Description
Technical Field
The invention relates to a construction method for combining a plurality of fans and hoisting a mobile wharf, and belongs to the technical field of fan construction.
Background
When the floating type fan is constructed and installed on the sea, a barrel, a machine head and blades of the fan need to be installed on a floating body by means of a wharf, and then the floating type fan is transported to a construction installation point by a transport ship to be moored and fixed.
When the offshore distance of a construction installation point is far and a nearby wharf cannot bear the fan hoisting load, the newly-built wharf constructed on the coast can bear the fan hoisting load, but the newly-built wharf needs to be subjected to time periods such as concrete formwork pouring, solidifying and curing, the problem of long construction period exists, and the offshore construction efficiency with a specific time window period can be reduced.
Disclosure of Invention
In order to solve the technical problem, the invention provides a construction method for combining a plurality of fans and hoisting a mobile wharf.
The invention is realized by the following technical scheme.
The invention provides a construction method for hoisting a plurality of fans in combination with a mobile wharf, which comprises the following steps: the construction method is characterized in that a semi-submersible type lifting ship sits on a soft soil layer in a shallow water area, self-elevating type mounting platforms are distributed at the side end of the semi-submersible type lifting ship and are inserted into the soft soil layer in the shallow water area, two sets of mooring systems correspondingly moor two fan floating bodies on the semi-submersible type lifting ship to form a construction structure for lifting one or more fans in combination with a movable wharf, and therefore the construction method is used for lifting one or more fans on the sea.
The construction structures that a plurality of fans combined movable wharf hoisted include:
a semi-submersible hoisting ship with a soft soil layer in a shallow water area;
the self-elevating mounting platform is arranged in a soft soil layer of a shallow water area, is fixedly moored and is positioned at the side end of the semi-submersible type hoisting ship;
the fan floating bodies are distributed on the sides of the semi-submersible lifting ship and the self-elevating mounting platform and are mounted on the semi-submersible lifting ship through mooring systems.
The number of the fan floating bodies is two, and the two fan floating bodies are distributed on two sides of the semi-submersible type lifting ship through the mooring system.
The mooring system is contacted with the side of the semi-submersible type hoisting ship through a buffer piece which can absorb impact force to provide buffer.
The self-elevating mounting platform and the semi-submersible lifting ship are horizontal in a top view state.
The mooring system comprises: constructing a mooring pile fixed on a soft soil layer in a shallow water area, wherein the mooring pile is connected and moored with two ends of one side of a floating body triangular body of the fan through a mooring cable A;
constructing a limiting pile fixed on a soft soil layer of the shallow water area, wherein the limiting pile is in contact with one side of the fan floating body leaning against the mooring pile for limiting;
a mooring cable B which is connected with the other side of the floating body of the fan in a mooring way;
and two ends of the fan floating body triangular body close to the semi-submersible type hoisting ship are correspondingly connected with one ends of the mooring cable C and one end of the mooring cable D.
The mooring lines C cross the mooring lines D.
And the other ends of the mooring cable C and the mooring cable D after crossing are connected with a semi-submersible type hoisting ship for mooring.
The number of the mooring cables B is two.
One ends of the two mooring cables B are correspondingly connected with two ends of the other side of the fan floating body triangle in a mooring mode respectively, and the other ends of the two mooring cables B are connected with a semi-submersible lifting ship in a mooring mode.
The number of the mooring cables A is two, and a winch is installed at the top of the mooring pile and used for connecting and installing the mooring cables A.
The invention has the beneficial effects that: because the soft soil layer of the shallow water area at the bottom of the semi-submersible type hoisting ship bears the hoisting load of the fan, and the self-elevating type mounting platform bears the load during hoisting, the problem that the construction period is long in newly-built wharfs capable of bearing the hoisting load of the fan is solved, and the offshore construction efficiency with a specific time window period is improved.
Drawings
FIG. 1 is a schematic top view layout of a construction configuration of the present invention;
FIG. 2 is a schematic top distribution view of the mooring system of the present invention;
fig. 3 is a schematic front view distribution diagram of the mobile wharf and jack-up mounting platform of the present invention in shallow water soft soil;
in the figure: 1-semi-submersible hoisting ship; 2-shallow water area soft soil layer; 3-a self-elevating mounting platform; 4-mooring system; 41-a fan float; 42-mooring piles; 43-mooring line A; 44-mooring line B; 45-mooring line C; 46-mooring line D; 47-limiting piles; 5-a buffer member.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
As shown in fig. 1-3.
The application discloses a plurality of fans combine construction structures who removes pier hoist and mount includes:
the semi-submersible type hoisting ship 1 is arranged on a soft soil layer 2 in a shallow water area, and the semi-submersible type hoisting ship 1 is mainly used for mooring a fan floating body 41, stacking fan equipment, hoisting a tower drum by a fan, turning over a fan impeller and the like; the length of the semi-submersible lifting ship 1 is about 140m, the profile width is 37m, the maximum width is 47m, the profile depth is 12m, the maximum draught is 9m, and the maximum sinking depth is 25.5m; the semi-submersible type hoisting ship is provided with an 800t full-rotation ship crane, the hoisting weight is 600t @40m, the maximum hoisting height is 160m, and the semi-submersible type hoisting ship 1 contains two sets of towers, two sets of engine rooms, two sets of hubs and one set of blades.
The self-elevating type lifting ship is characterized in that lifting feet are inserted into a soft soil layer 2 in a shallow water area, the self-elevating type mounting platform 3 is fixedly moored and located at the side end of the semi-submersible type lifting ship 1, and the self-elevating type mounting platform 3 and the semi-submersible type lifting ship 1 are horizontal in an overlooking state.
The fan floating bodies 41 are distributed on the sides of the semi-submersible lifting ship 1 and the self-elevating mounting platform 3, more than two fan floating bodies 41 are respectively moored and mounted on the semi-submersible lifting ship 1 through a mooring system 4, and the two fan floating bodies 41 are distributed on two sides of the semi-submersible lifting ship 1 through the mooring system 4.
The mooring system 4 is contacted with the side edge of the semi-submersible type hoisting ship 1 through a buffer piece 5 capable of absorbing impact force to provide buffering, and the buffer piece 5 is a tire or an elastic rubber body or an elastic air bag and the like.
The semi-submersible type lifting ship 1 with the soft soil layer 2 at the bottom of the soft soil layer is used for bearing the fan assembly load, the ship lifting implementation fan assembly of the semi-submersible type lifting ship 1 is overflown from the transport ship to the semi-submersible type lifting ship 1, the fan assembly is lifted by the self-elevating type mounting platform 3 on the fan floating body 41 which is moored and mounted on the semi-submersible type lifting ship 1, mooring after lifting is achieved, the fan assembly is moored and fixed to a construction installation point through the transport ship, the semi-submersible type lifting ship 1 and the self-elevating type mounting platform 3 can form a mobile wharf together due to movement on the sea surface, the soft soil layer 2 at the bottom of the semi-submersible type lifting ship 1 is used for bearing the fan lifting load, the self-elevating type mounting platform 3 is used for simultaneously bearing the load during lifting, the problem that the construction period of the newly-built wharf for bearing the fan lifting load is long is solved, and the offshore construction efficiency with a specific time window period is improved.
When a floating body needs to be transferred to a mobile wharf on the sea for fan hoisting construction, the floating body of a fan needs to be moored on the sea, and the prior art refers to a shallow-water offshore floating type fan mooring system with the Chinese patent publication No. CN216508898U, and the open adoption technology is as follows: the multiple groups of mooring structures arranged around the floating body foundation can complete mooring by the multiple groups of mooring structures around the floating body foundation, but the multiple groups of mooring structures can excessively occupy the sea surface around the floating body foundation, so that other production and transportation operations on the sea surface of a construction point are influenced.
The mooring system 4, specifically the mooring system 4 with a foundation of a fan float 41 moored at a mobile dock, includes: constructing a mooring pile 42 fixed on the soft soil layer 2 in the shallow water area, wherein the mooring pile 42 is connected and moored with two ends of one side of a triangular body of a fan floating body 41 through a mooring cable A43; the number of the mooring lines A43 is two, and a winch is installed at the top of the mooring pile 42 and used for connecting and installing the mooring lines A43, so that the mooring lines A43 can be tightened or loosened through the winch.
Constructing a limiting pile 47 fixed on the soft soil layer 2 in the shallow water area, wherein the limiting pile 47 is in contact with one side of the fan floating body 41 leaning against the mooring pile 42 for limiting; during construction, the limiting pile 47 is positioned on one side of the fan floating body 41 far away from the semi-submersible lifting ship 1.
The number of the mooring cables B44 is two, one end of each mooring cable B44 is correspondingly connected with the two ends of the other side of the triangular body of the fan floating body 41 in a mooring mode, and the other end of each mooring cable B44 is connected with the semi-submersible lifting ship 1 in a mooring mode;
the two ends of the triangular body of the fan floating body 41 close to the semi-submersible type sling ship 1 are correspondingly connected with a mooring cable C45 and one end of a mooring cable D46, the mooring cable C45 is crossed with the mooring cable D46, and the other ends of the crossed mooring cable C45 and the crossed mooring cable D46 are connected with the semi-submersible type sling ship 1 for mooring.
One end of a fan floating body 41 is moored on a mooring pile 42 through a mooring rope A43, the other end of the fan floating body 41 is moored and connected on the semi-submersible type lifting ship 1 through a mooring rope B44, the side face of the fan floating body 41 is moored on the semi-submersible type lifting ship 1 through a mooring rope C45 and a mooring rope D46 to be limited by a limiting pile 47, the mooring rope is not arranged on the outer periphery of the limiting pile 47, the influence on other production and transportation operations on the sea surface of a construction point is reduced, and the problem that a plurality of groups of mooring structures occupy too much of the sea surface on the periphery of a floating body foundation is solved.
The application relates to a construction method for hoisting a plurality of fans in combination with a mobile wharf, which comprises the following steps: the construction method comprises the following steps that a semi-submersible lifting ship 1 sits on a bottom shallow water area soft soil layer 2, self-elevating mounting platforms 3 are distributed at the side end of the semi-submersible lifting ship 1 and inserted into the shallow water area soft soil layer 2, two mooring systems 4 correspondingly moor and mount two fan floating bodies 41 on the semi-submersible lifting ship 1, and a construction structure that a plurality of fans are combined with a mobile dock to hoist is formed to hoist one or more fans on the sea.
Because the soft soil layer 2 of the shallow water area at the bottom of the semi-submersible type hoisting ship 1 bears the hoisting load of the fan, and the self-elevating type mounting platform 3 bears the load during hoisting, the problem that a newly-built wharf which can bear the hoisting load of the fan has long construction period is solved, and the offshore construction efficiency with a specific time window period is improved.
The construction method comprises the following specific steps:
1) Surveying the topography, geology and storm flow conditions of a water area (west side of a continent island), and further determining an operation water area capable of meeting the installation requirement;
2) Performing pile sinking operation on the mooring pile 42 and the limiting pile 47, installing a winch on the pile top, and installing a floating body bottom-sitting caisson;
3) The semi-submersible type hoisting ship enters a field and is in place and sits on the bottom of the soft soil layer 2 in the shallow water area to form a semi-submersible type hoisting ship 1, and the self-elevating type mounting platform 3 enters the field and is in place and completes pile inserting operation in the soft soil layer 2 in the shallow water area;
4) The deck transport ship carries two sets of fan equipment, a berthing semi-submersible lifting ship 1 with a tower drum and a self-elevating mounting platform 3, ship hoisting implementation equipment on the semi-submersible lifting ship 1 and the self-elevating mounting platform 3 is used for refuting, and an impeller is assembled by the self-elevating platform;
5) The draught fan floating body 41 is grounded to the semi-submersible lifting ship 1 and the self-elevating mounting platform 3, and the draught fan floating body 41 is adjusted to be at the bottom through the mooring system 4 and is moored and fixed on the semi-submersible lifting ship 1;
6) Assembling the fan assembly on the fan floating body 41 by using the self-elevating mounting platform 3 and the semi-submersible lifting ship 1 in an alternate running water manner; (the semi-submersible hoisting ship 1 mainly hoists a tower, and the self-elevating mounting platform 3 is mainly responsible for hoisting an engine room and an impeller);
7) The tug is hung with the cable fan floating body 41, and the fan floating body 41 is adjusted to float, so that the mooring operation is completed.
Claims (8)
1. A construction method for combining a plurality of fans and hoisting a mobile wharf is characterized by comprising the following steps: the construction method comprises the following steps that a semi-submersible lifting ship (1) sits on a bottom shallow water area soft soil layer (2), self-elevating mounting platforms (3) are distributed at the side end of the semi-submersible lifting ship (1) and are inserted into the shallow water area soft soil layer (2), two sets of mooring systems (4) correspondingly moor and mount two fan floating bodies (41) on the semi-submersible lifting ship (1), and a construction structure that a plurality of fans are combined with a movable wharf to hoist is formed, so that one or more fans are hoisted on the sea.
2. The construction method for hoisting a plurality of fans in combination with a mobile wharf according to claim 1, wherein the construction structure for hoisting a plurality of fans in combination with a mobile wharf comprises:
a semi-submersible hoisting ship (1) with a soft soil layer (2) in a shallow water area;
the self-elevating type mounting platform (3) is mounted in a soft soil layer (2) of a shallow water area, is fixedly moored and is positioned at the side end of the semi-submersible type hoisting ship (1); the semi-submersible lifting ship (1) and the self-elevating mounting platform (3) together form a mobile wharf;
the fan floating bodies (41) are distributed on the sides of the semi-submersible lifting ship (1) and the self-elevating mounting platform (3), and the fan floating bodies (41) are moored and mounted on the semi-submersible lifting ship (1) through a mooring system (4).
3. The construction method for hoisting a plurality of fans combined with a mobile wharf according to claim 2, characterized in that: the number of the fan floating bodies (41) is two, and the two fan floating bodies are distributed on two sides of the semi-submersible lifting ship (1) through the mooring system (4).
4. The construction method for hoisting a plurality of fans combined with a mobile wharf according to claim 2, characterized in that: the mooring system (4) is contacted with the side edge of the semi-submersible type hoisting ship (1) through a buffer piece (5) capable of absorbing impact force to provide buffering.
5. The construction method for hoisting a plurality of fans combined with a mobile wharf according to claim 2, characterized in that: the self-elevating mounting platform (3) and the semi-submersible hoisting ship (1) are horizontal in a top view state.
6. Construction method for hoisting a plurality of fans combined with a mobile quay according to claim 2, characterized in that the mooring system (4) comprises: constructing a mooring pile (42) fixed on a soft soil layer (2) in a shallow water area, wherein the mooring pile (42) is connected and moored with two ends of one side of a triangular body of a fan floating body (41) through a mooring rope A (43);
constructing a limiting pile (47) fixed on a soft soil layer (2) in a shallow water area, wherein the limiting pile (47) is in contact with one side of the fan floating body (41) leaning against the mooring pile (42) for limiting;
a mooring line B (44) which is connected with the other side of the fan floating body (41) in a mooring way;
the two ends of the triangular body of the fan floating body (41) close to the semi-submersible type hoisting ship (1) are correspondingly connected with one end of the mooring cable C (45) and one end of the mooring cable D (46).
7. The construction method for hoisting a plurality of fans in combination with a mobile wharf as claimed in claim 6, characterized in that: the mooring line C (45) intersects with the mooring line D (46).
8. The construction method for hoisting a plurality of fans combined with a mobile wharf according to claim 7, characterized in that: the other ends of the mooring cable C (45) and the mooring cable D (46) after crossing are connected with a semi-submersible hoisting ship (1) for mooring.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211446694.2A CN115748633A (en) | 2022-11-18 | 2022-11-18 | Construction method for hoisting by combining multiple fans with mobile wharf |
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| CN202211446694.2A CN115748633A (en) | 2022-11-18 | 2022-11-18 | Construction method for hoisting by combining multiple fans with mobile wharf |
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