CN114086531A - Sheet prefabricating process for offshore wind power jacket - Google Patents
Sheet prefabricating process for offshore wind power jacket Download PDFInfo
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- CN114086531A CN114086531A CN202111539660.3A CN202111539660A CN114086531A CN 114086531 A CN114086531 A CN 114086531A CN 202111539660 A CN202111539660 A CN 202111539660A CN 114086531 A CN114086531 A CN 114086531A
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- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000009417 prefabrication Methods 0.000 claims abstract description 35
- 238000003466 welding Methods 0.000 claims abstract description 29
- 235000013057 Chorispora tenella Nutrition 0.000 claims abstract description 22
- 241001118070 Chorispora tenella Species 0.000 claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 claims abstract description 20
- 238000009434 installation Methods 0.000 claims abstract description 4
- 239000004568 cement Substances 0.000 claims description 71
- 229910000831 Steel Inorganic materials 0.000 claims description 26
- 239000010959 steel Substances 0.000 claims description 26
- 238000002360 preparation method Methods 0.000 claims description 10
- 241001631030 Explorator Species 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 claims description 3
- 238000009966 trimming Methods 0.000 abstract description 7
- 238000010276 construction Methods 0.000 abstract description 3
- 241000876833 Emberizinae Species 0.000 description 4
- 229910001208 Crucible steel Inorganic materials 0.000 description 3
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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
- 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
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
- E02D27/425—Foundations for poles, masts or chimneys specially adapted for wind motors masts
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2406—Connection nodes
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Abstract
The invention belongs to the technical field of offshore wind power, and particularly relates to a sheet prefabrication process for an offshore wind power jacket, which comprises an upper sheet prefabrication process and a lower sheet prefabrication process, wherein the upper sheet prefabrication process and the lower sheet prefabrication process comprise nine processes of flower sheet prefabrication, ground marking, field pier arrangement, profiling tool manufacturing and mounting, line returning, hoisting, cross flower sheet trimming, assembling and welding; according to the invention, through nine processes of flower piece prefabrication, ground scribing, field pier arrangement, profiling tool manufacturing and installation, line returning, hoisting, cross flower piece opening trimming, assembling and welding, sheet body prefabrication is realized, the whole process is high in accuracy, construction is simple, the strength of a welded finished product is high, and the cost is low.
Description
Technical Field
The invention belongs to the technical field of offshore wind power, and particularly relates to a sheet prefabricating process for an offshore wind power jacket.
Background
The application of the domestic cast steel node is just rising at present, in large-span structures such as national stadiums (bird nests), international airport new station buildings in the north of Chongqing Jiang, Harbin exhibition centers and the like, a cast steel node form is adopted for the node with complex stress, good economic benefits are obtained, the traditional lacing wire pipe and node pipe direct welding process is adopted for prefabricating the horizontal sheets of the domestic jacket, cast steel nodes are adopted for building the jacket, and the novel prefabrication process has strong advantages in the field of ocean engineering, particularly jacket platforms in extremely cold sea areas.
When carrying out the lamellar body prefabrication, the degree of difficulty is big when carrying out the group, and the operation degree of difficulty is high during the construction, causes off-the-shelf precision low easily, and is inefficient.
Therefore, it is necessary to invent a sheet prefabricating process for offshore wind power jacket to solve the above problems.
Disclosure of Invention
Aiming at the problems, the invention provides a sheet body prefabricating process for an offshore wind power jacket, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a marine wind power is lamellar body prefabrication technology for jacket, includes two processes of upper portion lamellar body prefabrication and lower part lamellar body prefabrication, the upper portion lamellar body prefabrication all includes that the flower piece is prefabricated, ground is rule, place mound, profiling frock preparation installation, returns line, hoist and mount, cross flower piece is repaiied mouthful, is to and the welding totally nine processes with the lower part lamellar body prefabrication.
Preferably, the flower slice prefabricating steps are as follows:
a, stretching the lacing wire;
and b, assembling and welding the lacing wires.
Preferably, the ground marking step is as follows:
marking out the central line of the ROW sheet;
b, extending the specified distance in the left and right directions by taking the upper end point of the central line as a base point to find two end points of the upright column;
c, extending downwards by a specified distance by taking the upper end point of the central line as a base point to find the centers of the two cross-hairs and the lower end point of the central line;
d, extending the specified distance in the left and right directions by taking the lower endpoint of the central line as a base point to find the other two endpoints of the upright column;
e, taking the four end points of the upright post as base points to extend a specified distance in the upward and downward directions to find out a plurality of end points of the two crossed flowers;
f, connecting the end points of the flower pieces diagonally.
Preferably, the place bunting is divided into prefabricated place bunting of upper portion lamellar body and the prefabricated place bunting of lower part lamellar body, and wherein the concrete step of prefabricated place bunting of upper portion lamellar body is as follows:
a: selecting L2000W 1000H 1500mm cement piers to prepare 6 cement piers;
b: selecting L1000W 1000H 2500mm cement piers to prepare 8 cement piers;
c: selecting 14L 2000W 3000W 16mm steel plates;
e: placing a steel plate at the approximate position of the cement pier, and returning the ground line to the steel plate;
e: marking the projection position of the cement pier on the steel plate according to the size of the figure;
f: forking each cement pier to the respective projection position by a forklift;
g: checking the position of the cement pier;
the specific steps of the lower sheet body prefabricated field pier laying are as follows:
a: selecting L2000W 1000H 2000mm cement piers to prepare 2 cement piers;
b: selecting L2000W 1000H 1500mm cement piers to prepare 4 cement piers;
c: selecting L1000W 1000H 2000mm cement piers to prepare 4 cement piers;
d: selecting 10L 2000W 3000W 16mm steel plates;
e: marking the projection position of the cement pier on the steel plate according to the size shown in the figure;
f: forking each cement pier to the respective projection position by a forklift;
g: and checking the position of the cement pier.
Preferably, the profiling tool manufacturing and mounting steps are as follows:
a, manufacturing and installing a profiling tool, wherein the profiling tool comprises a left side guide pipe leg tool, a flower piece supporting tool and a right side guide pipe leg tool;
the number of the left conduit leg tool, the flower piece supporting tool and the right conduit leg tool is not less than one;
c, arranging a stop block in front of the first pad pier on the left side;
d, welding the two cement piers on the steel plate by using the same steel plate under the first cement pier on the left side and the stop cement pier.
Preferably, the hoisting steps are as follows:
a, welding positioning plates on two horizontal sides of the conduit at 0-degree and 180-degree;
b, welding two upright posts on the cement pier;
c, hoisting the two guide pipes to the corresponding cement piers, and paying attention to angle control in the hoisting process;
d, moving the right catheter to the right side by using the tool explorator so as to be convenient for hoisting a subsequent cross flower sheet;
and e, hoisting the crossed flower sheets to the corresponding cement piers.
Preferably, the pairing step is as follows:
a, utilizing a profiling tool to move a left side guide pipe leg up and down and a right side guide pipe leg left and right so as to ensure that the whole size meets the requirement;
b: the cross flower sheet is assembled with the guide pipe, and the lower cross flower needs to be provided with a temporary lacing wire.
Preferably, the step e of the floor line drawing steps of the upper sheet body prefabrication and the lower sheet body prefabrication are different,
when the upper sheet body is prefabricated, the step e specifically comprises the following steps: using four end points of the upright post as base points to extend for a specified distance in the upward and downward directions to find 8 end points of the two crossed flowers;
when the lower sheet body is prefabricated, the step e specifically comprises the following steps: and taking the four end points of the upright post as base points to extend upwards and downwards for a specified distance to find out 4 end points of the cross flower.
Preferably, the step b in the manufacturing and mounting steps of the profiling tools for prefabricating the upper sheet body and the lower sheet body are different,
the step b in the manufacturing and mounting steps of the profiling tool for prefabricating the upper sheet body specifically comprises the following steps: the number of the left side guide pipe leg tool, the number of the pattern piece supporting tool and the number of the right side guide pipe leg tool are all one;
the step b in the manufacturing and mounting steps of the profiling tool for prefabricating the lower sheet body specifically comprises the following steps: the number of the left side pipe leg tool and the right side pipe leg tool is two, and the number of the flower piece supporting tools is one.
The invention has the technical effects and advantages that: according to the invention, through nine processes of flower piece prefabrication, ground scribing, field pier arrangement, profiling tool manufacturing and installation, line returning, hoisting, cross flower piece opening trimming, assembling and welding, sheet body prefabrication is realized, the whole process is high in accuracy, construction is simple, the strength of a welded finished product is high, and the cost is low.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic view of a ground score line in the upper sheet preparation of the present invention;
FIG. 2 is a schematic view of an upper sheet prefabricated midcourt pier of the present invention;
FIG. 3 is a schematic view of the upper sheet prefabrication profiling tooling of the present invention being manufactured and installed;
FIG. 4 is a schematic illustration of the hoist in the upper sheet preparation of the present invention;
FIG. 5 is a schematic illustration of the upper panel preform mid-pair assembly of the present invention;
FIG. 6 is a schematic view of the weld in the upper sheet preparation of the present invention;
FIG. 7 is a schematic view of a ground score line in the lower sheet preparation of the present invention;
FIG. 8 is a schematic view of a lower sheet prefabricated mid-court pier of the present invention;
FIG. 9 is a schematic view of the lower sheet prefabrication profiling tooling of the present invention being manufactured and installed;
FIG. 10 is a schematic view of the hoist in the lower sheet preparation of the present invention;
FIG. 11 is a schematic view of a lower sheet preform mid-pair assembly of the present invention;
FIG. 12 is a schematic view of a weld in the lower sheet preparation of the present invention;
FIG. 13 is a process flow diagram of the upper and lower sheet preparations of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort belong to the protection scope of the present invention;
in the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The invention provides a sheet prefabrication process for offshore wind power jackets, which comprises an upper sheet prefabrication process and a lower sheet prefabrication process, wherein the upper sheet prefabrication process and the lower sheet prefabrication process respectively comprise nine processes of flower sheet prefabrication, ground marking, field pier arrangement, profiling tool manufacturing and mounting, line returning, hoisting, cross flower sheet trimming, pairing and welding.
Referring to the attached drawings 1-6 of the specification, the upper sheet body prefabrication step is carried out for prefabricating the flower sheets, and the flower sheet prefabrication step is as follows:
a, stretching the lacing wire;
and b, assembling and welding the lacing wires.
Secondly, carrying out ground scribing, wherein the ground scribing comprises the following steps:
marking out the central line of the ROW sheet;
b, extending a specified distance in the left and right directions by taking the upper endpoint of the central line as a base point to find two endpoints (endpoint 1 and endpoint 2 shown in figure 1) of the upright column;
c, extending downwards by a specified distance by taking the upper endpoint of the central line as a base point to find the centers of the two crosses and the lower endpoint of the central line (the endpoint 3, the endpoint 4 and the lower endpoint of the central line shown in figure 1);
d, extending a specified distance in the left and right directions by taking the lower endpoint of the central line as a base point to find the other two endpoints (the endpoint 5 and the endpoint 6 shown in figure 1) of the upright column;
e, using four end points of the upright post as base points to extend upward and downward for a specified distance to find 8 end points (end points 7-14 shown in figure 1) of the two cross flowers;
f, connecting the end points of the flower pieces diagonally.
Thirdly, site laying is carried out and placed according to the figure 2, and the site laying steps are as follows:
L2000W 1000H 1500mm cement pier preparation 6 pieces (placed under two side conduit legs);
preparing 8 cement piers (placed under the middle flower sheets) by L1000W 1000H 2500 mm;
14 pieces of L2000W 3000W 16mm steel plates;
b, placing the steel plate at a corresponding position according to the ground line in the ground line drawing step, and returning the ground line drawn on the steel plate;
marking the projection position of the cement pier on the steel plate;
d, forking each cement pier to the respective projection position by a forklift;
e, checking the position of the cement pier.
And a fourth step of profiling tool manufacturing and mounting, wherein the profiling tool manufacturing and mounting steps are as follows:
a, manufacturing and installing a profiling tool, wherein the profiling tool comprises a left side guide pipe leg tool, a flower piece supporting tool and a right side guide pipe leg tool;
b, the number of the left conduit leg tool, the number of the flower piece supporting tool and the number of the right conduit leg tool are all one; the left catheter leg tooling is shown in a left three-dimensional view in fig. 3, the middle flower piece supporting tooling is shown in a middle three-dimensional view in fig. 3, and the right catheter leg tooling is shown in a right three-dimensional view in fig. 3;
c, arranging a stop before the first pad pier on the left side (see the bottom three-dimensional drawing shown in the figure 3);
d, welding the two cement piers on the steel plate by using the same steel plate under the first cement pier on the left side and the stop cement pier.
Fifthly, returning the line, wherein the line returning function is to return the ground scribing line to the cement pier and the mold leaning tool;
hoisting is carried out in a sixth step, wherein the hoisting steps are as follows:
a, welding positioning plates on two horizontal sides of the conduit at 0-degree and 180-degree;
b, welding two upright posts on the cement pier (as shown in figure 4);
c, hoisting the two guide pipes to the corresponding cement piers, and paying attention to angle control in the hoisting process;
d, moving the right catheter to the right side by using the tool explorator so as to be convenient for hoisting a subsequent cross flower sheet;
and e, hoisting the crossed flower sheets to the corresponding cement piers.
A seventh step of cross pattern trimming, which is specifically operated to lift the four openings on the left side for trimming, and repeatedly move and compare the four openings on the right side by utilizing a profiling tool;
the eighth step is to perform the pairing, as shown in fig. 5, the pairing step is as follows:
a, utilizing a profiling tool to move a left side guide pipe leg up and down and a right side guide pipe leg left and right so as to ensure that the whole size meets the requirement;
b: the cross flower sheet is assembled with the guide pipe, and the lower cross flower needs to be provided with a temporary lacing wire.
Welding in a ninth step to obtain a finished product as shown in fig. 6, wherein the welding is used for welding the cross flower sheet and the guide pipe;
referring to the attached figures 7-12 of the specification, the lower sheet body prefabrication is carried out in a first step for flower sheet prefabrication, and the flower sheet prefabrication steps are as follows:
a, stretching the lacing wire;
and b, assembling and welding the lacing wires.
Secondly, carrying out ground scribing, wherein the ground scribing comprises the following steps:
marking out the central line of the ROW sheet;
b, extending a specified distance in the left and right directions by taking the upper endpoint of the central line as a base point to find two endpoints (endpoint 1 and endpoint 2 shown in figure 7) of the upright column;
c, extending downwards by a specified distance by taking the upper endpoint of the central line as a base point to find the centers of the two crosses and the lower endpoint of the central line (the endpoint 3, the endpoint 4 and the lower endpoint of the central line shown in figure 7);
d, extending a specified distance in the left and right directions by taking the lower endpoint of the central line as a base point to find the other two endpoints (the endpoint 4 and the endpoint 5 shown in figure 7) of the upright column;
e, taking the four end points of the upright post as base points, extending upward and downward for a specified distance, and finding 4 end points (end points 6-9 shown in figure 7) of the two cross flowers;
f, connecting the end points of the flower pieces diagonally.
Thirdly, site laying is carried out and placed according to the diagram shown in fig. 8, and the site laying steps are as follows:
a, placing cement piers under phi 1400 conduit legs at two sides for preparing 2 pieces (placing under the phi 1400 conduit legs at two sides); L1000W 1000H 2500mm cement piers 4 pieces were prepared (placed under the two sides of the phi 1900 conduit legs);
L1000W 1000H 2000mm cement piers 4 (placed under the middle flower sheet) were prepared;
b: 10 pieces of L2000W 3000W 16mm steel plates;
marking the projection position of the cement pier on the steel plate;
d, forking each cement pier to the respective projection position by a forklift;
e, checking the position of the cement pier.
And a fourth step of profiling tool manufacturing and mounting, wherein the profiling tool manufacturing and mounting steps are as follows:
a, manufacturing and installing a profiling tool, wherein the profiling tool comprises a left side guide pipe leg tool, a flower piece supporting tool and a right side guide pipe leg tool;
b, the number of the left conduit leg tool, the number of the flower piece supporting tool and the number of the right conduit leg tool are all one; the left catheter leg tooling is shown in two three-dimensional views on the left side in fig. 9, the middle flower piece supporting tooling is shown in two three-dimensional views in the middle in fig. 9, and the right catheter leg tooling is shown in two three-dimensional views on the right side in fig. 9;
c, arranging a stop in front of the first pad pier on the left side (see the bottom three-dimensional diagram shown in FIG. 9);
d, welding the two cement piers on the steel plate by using the same steel plate under the first cement pier on the left side and the stop cement pier.
Fifthly, returning the line, wherein the line returning function is to return the ground scribing line to the cement pier and the mold leaning tool;
hoisting is carried out in a sixth step, wherein the hoisting steps are as follows:
a, welding positioning plates on two horizontal sides of the conduit at 0-degree and 180-degree;
b, welding two upright posts on the cement pier (as shown in figure 10);
c, hoisting the two guide pipes to the corresponding cement piers, and paying attention to angle control in the hoisting process;
d, moving the right catheter to the right side by using the tool explorator so as to be convenient for hoisting a subsequent cross flower sheet;
and e, hoisting the crossed flower sheets to the corresponding cement piers.
Seventhly, the step-by-step cross-shaped pattern piece trimming is carried out, wherein the operation is specifically that the two ports on the left side are lifted up to be trimmed, and the two ports on the right side are repeatedly moved by using a profiling tool to be trimmed and compared;
the eighth step is to perform the pairing, as shown in fig. 11, the pairing step is as follows:
a, utilizing a profiling tool to move a left side guide pipe leg up and down and a right side guide pipe leg left and right so as to ensure that the whole size meets the requirement;
b: the cross flower sheet is assembled with the guide pipe, and the lower cross flower needs to be provided with a temporary lacing wire.
And welding is carried out in the ninth step, the finished product is shown in figure 12, and the welding is used for welding the cross-shaped flower sheets and the guide pipe.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. The utility model provides a marine wind power is lamellar body prefabrication technology for jacket which characterized in that: including two prefabricated processes of upper portion lamellar body and lower part lamellar body, the prefabricated and lower part lamellar body of upper portion lamellar body all includes that the card is prefabricated, ground is rule, place mound, profiling frock preparation installation, returns line, hoist and mount, cross card are repaiied mouthful, are organized and the welding, totally nine processes.
2. The process of prefabricating a sheet for an offshore wind power jacket according to claim 1, wherein: the flower slice prefabricating steps are as follows:
a, stretching the lacing wire;
and b, assembling and welding the lacing wires.
3. The process of prefabricating a sheet for an offshore wind power jacket according to claim 1, wherein: the ground marking-out step is as follows:
marking out the central line of the ROW sheet;
b, extending the specified distance in the left and right directions by taking the upper end point of the central line as a base point to find two end points of the upright column;
c, extending downwards by a specified distance by taking the upper end point of the central line as a base point to find the centers of the two cross-hairs and the lower end point of the central line;
d, extending the specified distance in the left and right directions by taking the lower endpoint of the central line as a base point to find the other two endpoints of the upright column;
e, taking the four end points of the upright post as base points to extend a specified distance in the upward and downward directions to find out a plurality of end points of the two crossed flowers;
f, connecting the end points of the flower pieces diagonally.
4. The process of prefabricating a sheet for an offshore wind power jacket according to claim 1, wherein: the place bund divide into prefabricated place bund of upper portion lamellar body and the prefabricated place bund of lower part lamellar body, wherein the concrete step of the prefabricated place bund of upper portion lamellar body is as follows:
a: selecting L2000W 1000H 1500mm cement piers to prepare 6 cement piers;
b: selecting L1000W 1000H 2500mm cement piers to prepare 8 cement piers;
c: selecting 14L 2000W 3000W 16mm steel plates;
e: placing a steel plate at the approximate position of the cement pier, and returning the ground line to the steel plate;
e: marking the projection position of the cement pier on the steel plate according to the size of the figure;
f: forking each cement pier to the respective projection position by a forklift;
g: checking the position of the cement pier;
the specific steps of the lower sheet body prefabricated field pier laying are as follows:
a: selecting L2000W 1000H 2000mm cement piers to prepare 2 cement piers;
b: selecting L2000W 1000H 1500mm cement piers to prepare 4 cement piers;
c: selecting L1000W 1000H 2000mm cement piers to prepare 4 cement piers;
d: selecting 10L 2000W 3000W 16mm steel plates;
e: marking the projection position of the cement pier on the steel plate according to the size shown in the figure;
f: forking each cement pier to the respective projection position by a forklift;
g: and checking the position of the cement pier.
5. The process of prefabricating a sheet for an offshore wind power jacket according to claim 1, wherein: the profiling tool manufacturing and installing steps are as follows:
a, manufacturing and installing a profiling tool, wherein the profiling tool comprises a left side guide pipe leg tool, a flower piece supporting tool and a right side guide pipe leg tool;
the number of the left conduit leg tool, the flower piece supporting tool and the right conduit leg tool is not less than one;
c, arranging a stop block in front of the first pad pier on the left side;
d, welding the two cement piers on the steel plate by using the same steel plate under the first cement pier on the left side and the stop cement pier.
6. The process of prefabricating a sheet for an offshore wind power jacket according to claim 1, wherein: the hoisting steps are as follows:
a, welding positioning plates on two horizontal sides of the conduit at 0-degree and 180-degree;
b, welding two upright posts on the cement pier;
c, hoisting the two guide pipes to the corresponding cement piers, and paying attention to angle control in the hoisting process;
d, moving the right catheter to the right side by using the tool explorator so as to be convenient for hoisting a subsequent cross flower sheet;
and e, hoisting the crossed flower sheets to the corresponding cement piers.
7. The process of prefabricating a sheet for an offshore wind power jacket according to claim 1, wherein: the pairing steps are as follows:
a, utilizing a profiling tool to move a left side guide pipe leg up and down and a right side guide pipe leg left and right so as to ensure that the whole size meets the requirement;
b: the cross flower sheet is assembled with the guide pipe, and the lower cross flower needs to be provided with a temporary lacing wire.
8. The process of prefabricating a sheet for an offshore wind power jacket according to claim 3, wherein: the step e in the step of marking the ground with the prefabricated upper sheet body and the prefabricated lower sheet body is different,
when the upper sheet body is prefabricated, the step e specifically comprises the following steps: using four end points of the upright post as base points to extend for a specified distance in the upward and downward directions to find 8 end points of the two crossed flowers;
when the lower sheet body is prefabricated, the step e specifically comprises the following steps: and taking the four end points of the upright post as base points to extend upwards and downwards for a specified distance to find out 4 end points of the cross flower.
9. The process of prefabricating a sheet for an offshore wind power jacket according to claim 5, wherein: the step b of the profiling tooling manufacturing and mounting steps of the upper sheet body prefabrication and the lower sheet body prefabrication are different,
the step b in the manufacturing and mounting steps of the profiling tool for prefabricating the upper sheet body specifically comprises the following steps: the number of the left side guide pipe leg tool, the number of the pattern piece supporting tool and the number of the right side guide pipe leg tool are all one;
the step b in the manufacturing and mounting steps of the profiling tool for prefabricating the lower sheet body specifically comprises the following steps: the number of the left side pipe leg tool and the right side pipe leg tool is two, and the number of the flower piece supporting tools is one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111539660.3A CN114086531A (en) | 2021-12-16 | 2021-12-16 | Sheet prefabricating process for offshore wind power jacket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN110939198A (en) * | 2019-11-06 | 2020-03-31 | 海洋石油工程（青岛）有限公司 | Prefabricated horizontal sheet of jacket and installation process |
| CN113146109A (en) * | 2021-04-28 | 2021-07-23 | 中信重工机械股份有限公司 | Manufacturing method of eccentric jacket |
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Application publication date: 20220225 |