CN117755450A - Installation auxiliary frame of shallow water floating platform suitable for dredged seabed - Google Patents
Installation auxiliary frame of shallow water floating platform suitable for dredged seabed Download PDFInfo
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- CN117755450A CN117755450A CN202211128994.6A CN202211128994A CN117755450A CN 117755450 A CN117755450 A CN 117755450A CN 202211128994 A CN202211128994 A CN 202211128994A CN 117755450 A CN117755450 A CN 117755450A
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- horizontal layer
- supporting rods
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- layer support
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 238000009434 installation Methods 0.000 title claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012876 topography Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention discloses an auxiliary frame for installing a shallow water floating support platform suitable for a dredged seabed, which comprises an upper horizontal layer support, a lower horizontal layer support and two vertical connecting frames, wherein the two horizontal layer supports and the vertical connecting frames are fixedly connected into a frame whole; the upper horizontal layer support is fixedly connected with the upright post and the cross brace of the matched jacket, the four corners of the bottom of the lower horizontal layer support are respectively provided with a vertical pin shaft, and the vertical pin shafts are inserted into pin holes arranged at the lower part of the jacket to fix the jacket. The frame of the invention can adapt to the floating installation requirement of the block after the shallow water sea area is dredged by means of the self structural arrangement, saves a great amount of seabed pretreatment cost, and has better seabed adaptability.
Description
Technical Field
The invention belongs to the field of installation of large marine structures in shallow water and sea areas, and particularly relates to an auxiliary frame for installing a shallow water floating platform suitable for a dredged seabed.
Background
For the ultra-large assembly of the offshore large multi-wellhead platform, floating installation is the current offshore installation mode with the best economical efficiency. However, in shallow water, such as the beach shallow sea of Bohai in China, the water depth is shallow, the draft requirement of a transportation barge is not met, the distance between the bottom of the ship and the seabed is very small, the bottom-touching danger is easy to occur, and great economic loss is caused, so that the dredging of a harbor pool and a channel is required. However, after the harbor basin is dredged, the flatness of the sea bed after dredging cannot be guaranteed, and further risks are brought to the stability of the base of the conduit frame, and the sea bed flattening work can cause great waste of construction period and cost.
Disclosure of Invention
The invention aims to solve the technical problem of providing an auxiliary frame for installing a shallow water floating support platform suitable for a sea bed after dredging, which assists floating support installation of a large-scale platform assembly in a shallow water sea area and can be smoothly dismantled after the installation is completed.
In order to solve the technical problems, the invention adopts the following technical scheme: the auxiliary installation frame comprises an upper horizontal layer support, a lower horizontal layer support and two vertical connecting frames, wherein the two horizontal layer supports and the vertical connecting frames are fixedly connected to form a frame whole; the upper horizontal layer support is fixedly connected with the upright post and the cross brace of the matched jacket, and the bottom four corners of the lower horizontal layer support are fixed at the lower part of the jacket.
The bottom four corners of the lower horizontal layer support are respectively provided with a fixed connection vertical pin shaft, and the fixed connection vertical pin shafts are inserted into pin holes arranged at the lower part of the jacket and are fixed.
The bottom four corners of the lower horizontal layer support are fixed at the lower part of the jacket through welding, threaded connection, clamp connection or flange connection.
The upper horizontal layer support comprises two parallel upper transverse supporting rods and rhombic inclined supporting rods connected between the two parallel upper transverse supporting rods, the end parts of the two parallel upper transverse supporting rods are welded with the middle position of the top of the jacket, a pair of opposite end points of the rhombic inclined supporting rods are respectively welded on the two parallel upper transverse supporting rods, and the other pair of free ends can be just welded on the transverse supporting rods of the matched jacket; the lower horizontal layer support comprises two parallel lower transverse supporting rods, a plurality of longitudinal supporting rods connected between the two parallel lower transverse supporting rods, four inclined supporting rods connected between the outer sides of the longitudinal supporting rods at two sides and the end parts of the lower transverse supporting rods, and the two parallel lower transverse supporting rods are positioned at the outer sides of the stand columns of the matched jacket; the vertical connection frame comprises vertical support rods connected between the upper transverse support rods and the lower transverse support rods at two ends and a plurality of V-shaped diagonal braces connected between the upper transverse support rods and the lower transverse support rods and positioned between the vertical support rods at two ends.
The bottom plate is fixed at the bottom of the beam of the anti-sinking plate module, and a plurality of drain holes are formed in the bottom plate.
The beam of the anti-sinking plate module adopts I-shaped steel or H-shaped steel, the height is set according to the sea bed measurement height, and the aperture of the drain hole is determined according to calculation.
The short section is installed at the lower part of the longitudinal stay bar of the lower horizontal layer support, and the beam of the anti-sinking plate module is connected with the longitudinal stay bar of the lower horizontal layer support through the short section.
The lower part of the upright post of the matched jacket is fixedly sleeved with a mounting plate with a pin hole, and a vertical pin shaft at the bottom of the lower horizontal layer bracket is inserted into the pin hole to fix the lower horizontal layer bracket.
The beneficial effects of the invention are as follows: the frame of the invention can adapt to the floating support installation requirement of the block after the shallow water sea area is dredged by means of the self structural arrangement, thereby saving a great amount of seabed pretreatment cost; the frame can ensure that the jacket resists certain environmental load and dead weight load of the jacket in the installation process, and ensures that the structure has enough in-place anti-overturning and anti-sliding stability; the frame can be designed in blocks according to the arrangement of the anti-sinking plate structure, and finally positioned and installed before going out of the sea according to the measurement result of the seabed topography, so that the frame has better seabed adaptability.
Drawings
FIG. 1 is a schematic view of the installation auxiliary frame of the shallow water floating platform applicable to the dredged seabed;
FIG. 2 is a schematic view of an upper horizontal deck support of the present invention;
FIG. 3 is a schematic view of a lower horizontal deck support of the present invention;
FIG. 4 is a schematic view of a vertical attachment frame of the present invention;
FIG. 5 is a schematic view of the anti-heave plate module of the present invention;
FIG. 6 is a schematic view of section C-C of FIG. 5;
FIG. 7 is a schematic view in section B-B of FIG. 5;
fig. 8 is a schematic view of a pin support structure.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present invention are within the protection scope of the present invention.
In the description of the present invention, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1 to 8, the installation auxiliary frame of the shallow water floating platform suitable for the sea bed after dredging of the invention comprises an upper horizontal layer support 2, a lower horizontal layer support 3 and two vertical connecting frames 4, wherein the two horizontal layer supports and the vertical connecting frames are fixedly connected into a frame whole; the upper horizontal layer support 2 is fixedly connected with the upright post 9 and the cross brace 23 of the matched jacket 1, and the bottom four corners of the lower horizontal layer support 3 are fixed at the lower part of the jacket.
The bottom four corners of the lower horizontal layer bracket 3 are respectively provided with a fixed connection vertical pin shaft 10, and the fixed connection vertical pin shaft 10 is inserted into a pin hole arranged at the lower part of the jacket for fixation.
The bottom four corners of the lower horizontal layer bracket 3 are fixed at the lower part of the jacket through welding, threaded connection, clamp connection or flange connection.
The upper horizontal layer bracket 2 comprises two parallel upper transverse supporting rods 18 and a diamond-shaped diagonal supporting rod 7 connected between the two parallel upper transverse supporting rods, the end parts of the two parallel upper transverse supporting rods 18 are welded with the middle position of the top of the jacket 9, a pair of opposite end points of the diamond-shaped diagonal supporting rod 7 are respectively welded on the two parallel upper transverse supporting rods 18, and the other pair of free ends can be just welded on the transverse supporting rods 23 of the matched jacket; the lower horizontal layer bracket 3 comprises two parallel lower transverse supporting rods 19, a plurality of longitudinal supporting rods 11 connected between the two parallel lower transverse supporting rods, four diagonal supporting rods 12 connected between the outer sides of the longitudinal supporting rods 11 at two sides and the end parts of the lower transverse supporting rods 19, and the two parallel lower transverse supporting rods 18 are positioned at the outer sides of the matched jacket stand columns 9; the vertical connection frame 4 includes vertical support bars 6 connected at both ends between the upper and lower spreader bars 18 and 19 and a plurality of V-shaped diagonal braces 8 connected between the upper and lower spreader bars 18 and 19 between the vertical support bars 6 at both ends.
The lower part of the lower horizontal layer bracket 3 is provided with an anti-sinking plate module 13 consisting of a bottom plate 20 and a plurality of beams 15, the top of the beams 15 of the anti-sinking plate module is connected with the longitudinal supporting rods 11 of the lower horizontal layer bracket 3, the bottom plate 20 is fixed at the bottom of the beams 15 of the anti-sinking plate module, and a plurality of drain holes 17 are formed in the bottom plate.
The beam 15 of the anti-sinking plate module adopts I-shaped steel or H-shaped steel, the height is set according to the sea bed measurement height, and the aperture of the drain hole 17 is determined according to calculation.
The short section (14) is arranged at the lower part of the longitudinal supporting rod 11 of the lower horizontal layer bracket 3, and the beam 15 of the anti-sinking plate module is connected with the longitudinal supporting rod 11 of the lower horizontal layer bracket 3 through the short section 14.
The lower part of the upright post 9 of the matched jacket is fixedly sleeved with a mounting plate 22 with a pin hole, and a vertical pin shaft 10 at the bottom of the lower horizontal layer bracket 3 is inserted into the pin hole to fix the lower horizontal layer bracket 3.
Specifically, the installation auxiliary frame 5 of the invention is arranged between two matched jackets 1, and connects the two matched jackets 1 into a whole in the processes of shipping, transporting, hoisting and piling, and comprises an upper horizontal layer bracket 2, a lower horizontal layer bracket 3 and two vertical supporting frames 4; the upper horizontal layer support 2, the lower horizontal layer support 3 and the two vertical support frames 4 are fixedly connected into an installation auxiliary frame 5; the top ends of the installation auxiliary frames 5 are fixedly connected with the top ends of the two matched jackets 1 respectively, and the four corners of the bottom of the installation auxiliary frames 5 are connected with the lower parts of the matched jackets 1 through pin shaft structures 6 respectively. The anti-sinking plate module 13 is suspended below the installation auxiliary frame 5 through a short section 14.
In one embodiment, as shown in fig. 2, the end parts of the horizontal layer brackets at the upper part of the installation auxiliary frame 5 are welded and fixed with the two side main legs of the two matched jackets 1 through four round tubes 16 respectively, and the diamond diagonal braces 7 are welded and fixed with the corresponding horizontal cross braces of the two platform jackets 1. The position, number and arrangement of the diamond-shaped diagonal braces 7 can be adjusted according to the specific project.
In one embodiment, as shown in fig. 3 and 8, the transverse supporting rods of the horizontal layer support at the lower part of the auxiliary frame 5 are positioned at the outer sides of the supporting jacket stand columns, and the mounting plates 22 with the pin holes are longitudinally arranged, so that the construction ship can enter the middle area of the two supporting jackets after the frame 5 is dismantled.
In one embodiment, as shown in fig. 8, a mounting plate 22 with a pin hole is welded on the stand column 9 of the matched jacket to form the outer wall of the pin hole, and vertical pin shafts 10 are arranged at four corners of the bottom of the mounting auxiliary frame 5 and are inserted into the pin holes.
When the invention is used, the two matched jackets 1 are connected into a whole through the invention, shipping, transportation and offshore hoisting are carried out, after piling is finished, the round pipe 16 of the upper horizontal layer support and the part of the diamond-shaped support connected with the matched jackets are cut, the lower horizontal layer support does not need to be cut, and the whole installation auxiliary frame 5 is hoisted out of water by using the floating crane.
After the auxiliary frame main body is built, the anti-sinking plate module 13 is hoisted to an assembly area by utilizing a building site crane, the frame stay bars 11 and the beams 15 are connected together through the short sections 14, and the length of the short sections 14 is adjusted according to the measured submarine topography so that the anti-sinking plate module is attached to the seabed surface.
The block design of the anti-sinking plate module can be set according to actual needs, for example, a plurality of adjacent modules can be arranged. However, due to the consideration of cost, the number of the arranged modules can meet the requirement of the stability of the jacket and the whole seat bottom of the auxiliary frame.
The installation auxiliary frame is connected with the two jackets through welding and pin connection, the jackets are kept as a whole in the shipping, transporting and installing processes, and the anti-sinking plate module can be reused after being dismantled and detected after being transported back to the land.
In view of the foregoing, the present invention is not limited to the above-described embodiments, and other embodiments can be easily proposed by those skilled in the art within the scope of the technical teaching of the present invention, but such embodiments are included in the scope of the present invention.
Claims (8)
1. The auxiliary frame for installing the shallow water floating platform is suitable for the sea bed after dredging and is characterized in that the auxiliary frame (5) for installing comprises an upper horizontal layer support (2), a lower horizontal layer support (3) and two vertical connecting frames (4), and the two horizontal layer supports and the vertical connecting frames are fixedly connected to form a frame whole; the upper horizontal layer support (2) is fixedly connected with the upright post (9) and the cross brace (23) of the matched jacket (1), and the bottom four corners of the lower horizontal layer support (3) are fixed at the lower part of the jacket.
2. The auxiliary frame for installing the shallow water floating platform for the dredged seabed according to claim 1, wherein the bottom four corners of the lower horizontal layer support (3) are respectively provided with a fixed connection vertical pin shaft (10), and the fixed connection vertical pin shaft (10) is inserted into a pin hole arranged at the lower part of the jacket for fixation.
3. The auxiliary frame for installing a shallow water floating platform for dredging the seabed according to claim 1, wherein the bottom four corners of the lower horizontal bracket (3) are fixed to the lower part of the jacket by welding, screw connection, clip connection or flange connection.
4. The auxiliary frame for installing shallow water floating platform suitable for dredging the seabed according to claim 1 or 2, wherein the upper horizontal layer bracket (2) comprises two parallel upper transverse supporting rods (18) and a rhombic inclined supporting rod (7) connected between the two parallel upper transverse supporting rods, the end parts of the two parallel upper transverse supporting rods (18) are welded with the middle position of the top of the jacket (9), the opposite pair of end points of the rhombic inclined supporting rods (7) are respectively welded on the two parallel upper transverse supporting rods (18), and the other pair of free ends can be just welded on the transverse supporting rods (23) of the matched jacket; the lower horizontal layer bracket (3) comprises two parallel lower transverse supporting rods (19), a plurality of longitudinal supporting rods (11) connected between the two parallel lower transverse supporting rods, four diagonal supporting rods (12) connected between the outer sides of the longitudinal supporting rods (11) at two sides and the end parts of the lower transverse supporting rods (19), and the two parallel lower transverse supporting rods (18) are positioned at the outer sides of the matched jacket stand columns (9); the vertical connection frame (4) comprises vertical support rods (6) connected between two ends of an upper transverse support rod (18) and a lower transverse support rod (19) and a plurality of V-shaped diagonal braces (8) connected between the upper transverse support rod (18) and the lower transverse support rod (19) and positioned between the vertical support rods (6) at two ends.
5. The auxiliary frame for installing the shallow water floating platform suitable for the dredged seabed according to claim 4, wherein the anti-sinking plate module (13) consisting of a bottom plate (20) and a plurality of beams (15) is installed at the lower part of the lower horizontal layer support (3), the top of the beams (15) of the anti-sinking plate module is connected with the longitudinal supporting rods (11) of the lower horizontal layer support (3), the bottom plate (20) is fixed at the bottom of the beams (15) of the anti-sinking plate module, and a plurality of water draining holes (17) are formed in the bottom plate.
6. The auxiliary frame for installing a shallow water floating platform suitable for the sea bed after dredging according to claim 5, wherein the beams (15) of the anti-sinking plate module are made of H-shaped steel or H-shaped steel, the height is set according to the sea bed measurement height, and the aperture of the drain hole (17) is determined according to calculation.
7. The auxiliary frame for installing the shallow water floating platform suitable for the dredged seabed according to claim 5, wherein the short section (14) is installed at the lower part of the longitudinal supporting rod (11) of the lower horizontal layer support (3), and the beam (15) of the anti-sinking plate module is connected with the longitudinal supporting rod (11) of the lower horizontal layer support (3) through the short section (14).
8. The auxiliary frame for installing the shallow water floating platform suitable for the dredged seabed according to claim 2, wherein the installation plate (22) with the pin holes is fixedly sleeved at the lower part of the upright post (9) of the matched jacket, and the vertical pin shafts (10) at the bottom of the lower horizontal layer support (3) are inserted into the pin holes to fix the lower horizontal layer support (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211128994.6A CN117755450A (en) | 2022-09-16 | 2022-09-16 | Installation auxiliary frame of shallow water floating platform suitable for dredged seabed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211128994.6A CN117755450A (en) | 2022-09-16 | 2022-09-16 | Installation auxiliary frame of shallow water floating platform suitable for dredged seabed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117755450A true CN117755450A (en) | 2024-03-26 |
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ID=90318701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211128994.6A Pending CN117755450A (en) | 2022-09-16 | 2022-09-16 | Installation auxiliary frame of shallow water floating platform suitable for dredged seabed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117755450A (en) |
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2022
- 2022-09-16 CN CN202211128994.6A patent/CN117755450A/en active Pending
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