CN114837185A - Light guide frame and mounting method thereof - Google Patents
Light guide frame and mounting method thereof Download PDFInfo
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- CN114837185A CN114837185A CN202210428347.0A CN202210428347A CN114837185A CN 114837185 A CN114837185 A CN 114837185A CN 202210428347 A CN202210428347 A CN 202210428347A CN 114837185 A CN114837185 A CN 114837185A
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- Prior art keywords
- hoisting
- frame
- point
- steel wire
- floating
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
- E02D13/04—Guide devices; Guide frames
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/08—Sinking workpieces into water or soil inasmuch as not provided for elsewhere
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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
- Y02E10/727—Offshore wind turbines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Foundations (AREA)
Abstract
The invention relates to a light guide frame and an installation method thereof.A hoisting structural member (2) of a floating hoisting point structure is connected with a frame structural member (1) through a steel wire rope (3), the floating crane hoists the hoisting structural member (2) to a target station, and after the frame structural member (1) is sunk to a designed depth of a seabed, the steel wire rope (3) between the hoisting structural member (2) and the frame structural member (1) is in a tensioning state. According to the light-weight guide frame and the installation method thereof, the weight can be reduced through the floating point hoisting structure, so that the light weight is realized, the material is saved, the weight is reduced, the manufacturing cost is greatly reduced, the installation can be realized by adopting a small-tonnage floating crane during the subsequent installation, the construction cost is further reduced, and the popularization and the application of the guide frame are facilitated.
Description
Technical Field
The invention relates to a guide frame, in particular to a guide frame with the characteristic of light weight and an installation method thereof based on a floating type hoisting point (hereinafter referred to as floating point) hoisting mode, and belongs to the technical field of ocean engineering construction.
Background
At present, in the offshore wind power construction process, in order to guarantee the verticality requirement and the accurate positioning requirement of an offshore wind power pile foundation, a guide frame needs to be installed on a foundation construction station of a wind power pile in advance, and the pile of a foundation is positioned and the verticality of the pile is guaranteed through the guide of the guide frame.
The guide function of the conventional guide frame is realized through the guide cylinder, the height of the guide frame is within 20 meters above the seabed, and the lifting point connected with the floating crane is above the water surface, so that the suspension and the tripping are convenient. Therefore, a frame structure is necessary to connect the guide cylinder and the water lifting point. With the increase of the depth of water in the offshore wind farm, the part of the frame structure connected with the water lifting point is also gradually lengthened, but the part of the frame structure with the connection function has no significance on the guide function and is only used for connecting the lifting point, but the existence of the frame structure causes the complex integral structure of the guide frame, the long manufacturing period, the large integral weight and the high cost.
Meanwhile, the conventional guide frame needs larger construction resources (such as a large-tonnage floating crane) in wharf shipping, marine transportation and marine hoisting due to the large weight, so that the construction cost and the construction difficulty are further increased. Therefore, a light-weight guide frame is needed to solve the above problems.
Disclosure of Invention
The invention aims to overcome the defects, and provides a light guide frame and an installation method thereof aiming at a pile foundation within 4 meters in diameter, in particular to a 4-pile jacket foundation, wherein the weight can be reduced through a floating point hoisting structure to realize light weight, so that the material is saved, the weight is reduced, the manufacturing cost and the manufacturing period are greatly reduced, and the subsequent installation can adopt relatively low-capacity construction resources, particularly, the installation can be realized through a small-tonnage floating crane during offshore hoisting, so that the construction cost is further greatly reduced, and the popularization and the application of the guide frame are facilitated.
The purpose of the invention is realized as follows:
the utility model provides a lightweight leading truck, includes support body structure spare and the continuous structure of lifting by crane with it, is connected through four wire rope between support body structure spare and the structure of lifting by crane, has the flotation pontoon structure on the structure of lifting by crane.
Preferably, the frame structure comprises a truss structure, the truss structure is provided with a lifting point, and the truss structure is provided with a guide cylinder and a suction bucket; the hoisting structure comprises a hoisting rod, a floating barrel is installed on the hoisting rod, an upper hoisting point and a lower hoisting point are arranged on the outer wall of the hoisting rod, and a steel wire rope is connected between the lower hoisting point and the hoisting point.
Preferably, an operating platform is installed on the suspension rod and is located between the upper suspension point and the lower suspension point.
A lifting structural member of a floating type lifting point structure is connected with a frame structural member through a steel wire rope, the lifting structural member is lifted to a target station by a floating crane, and when a frame bottom shallow foundation, taking a suction bucket foundation as an example, is completely sunk into a seabed to a designed depth, the steel wire rope between the lifting structural member and the frame structural member is in a tensioning state.
Preferably, when the water depths of different wind fields change in a small range, the floating point is subjected to load adjustment through the buoy, so that the floating point is integrally floated up and down, the small height change of the upper lifting point and the operating platform above the water surface is ensured, the steel wire rope is in a tensioning state, and the displacement of the floating point under the action of the marine environmental force is limited within a design allowable wide range; when the water depth change of different wind fields exceeds the self load regulation capacity of the buoy, the steel wire ropes with different lengths are replaced to match the construction environment.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the designed hoisting structure is the floating hoisting point, the hoisting point is connected with the underwater frame through the steel wire rope, the floating crane and the hoisting point above the sea surface are normally buckled and unbuckled, and the steel wire rope replaces a conventional frame structure for connection, so that the weight of the guide frame is greatly reduced, the lightweight design is realized, the operation on the guide frame is realized through small construction resources, and the construction cost is reduced.
Meanwhile, the floating type hoisting point structure can adapt to the same sea area with small water depth change through the load adjusting capacity of the floating type hoisting point structure, can realize quick matching of different sea areas with large water depth change through replacing steel wire ropes with different lengths, is high in efficiency and low in cost compared with conventional rigid structural member cutting and welding modification, further reduces construction cost, and improves market competitiveness of construction enterprises.
Drawings
Fig. 1 is a schematic structural view of a lightweight guide frame according to the present invention when floating in the sea.
Fig. 2 is a schematic structural view of the lightweight guide frame during aerial lifting.
Fig. 3 is a schematic structural diagram of a hoisting structure (floating hoisting point) of the light weight guide frame.
Fig. 4 is a schematic view of a lifting state of a lifting structure (removing an operation platform) of the light guide frame.
Fig. 5 is a schematic view of a floating state of a hoisting structure (removal operation platform) of the light guide frame.
Fig. 6 is a schematic structural view of another frame structure of a light weight guide frame according to the present invention.
Wherein:
the frame body structural part 1, the hoisting structural part 2 and the steel wire rope 3;
a truss structure 1.1, a guide cylinder 1.2 and a suction bucket 1.3;
1.1.1 of lifting point;
a suspender 2.1, a buoy 2.2 and an operation platform 2.3;
an upper hoisting point 2.1.1 and a lower hoisting point 2.1.2.
Detailed Description
Referring to fig. 1 to 6, the present invention relates to a light weight guide frame, comprising:
the frame structure member 1 (a part where the guide cylinder is located) is sunk into a seabed at a target position to accurately position and guide a pile pipe of the wind power pile foundation;
the hoisting structural member 2 (a part where a hoisting point is located) is connected with the frame structural member 1, and the installation (sinking and floating) of the frame structural member 1 is realized after the floating crane on the construction ship is hoisted and connected with the hoisting structural member 2;
simultaneously, be connected through four wire rope 3 between support body structure 1 and the structure of lifting by crane 2.
Specifically speaking:
frame structure 1 includes truss structure 1.1, is provided with four groups lifting point 1.1.1 on this truss structure 1.1, simultaneously, truss structure 1.1 is provided with four groups all around and supplies wind-powered electricity generation pile foundation's stake pipe male guide cylinder 1.2, is provided with four groups suction bucket 1.3 on the truss structure 1.1 simultaneously, makes whole frame structure 1 sink behind the seabed design degree of depth through suction bucket 1.3 during the operation.
The lifting structure 2 comprises a lifting rod 2.1, an operating platform 2.3 is installed on the lifting rod 2.1 to allow an operator to climb the platform for operation, two upper lifting points 2.1.1 are arranged on the upper portion of the outer wall of the lifting rod 2.1, four groups of lower lifting points 2.1.2 are arranged on the lower portion of the outer wall, the operating platform 2.3 is located between the upper lifting points 2.1.1 and the lower lifting points 2.1.2, a lifting hook of a floating crane on a construction ship is connected to the upper lifting points 2.1.1 through a cable, the steel wire ropes 3 are provided with four steel wires, the top of each steel wire rope 3 is connected to the lower lifting points 2.1.2, and the bottom of each steel wire rope is connected to the lifting points 1.1.1 on the frame structure 1. Meanwhile, the bottom of the suspender 2.1 is provided with a buoy 2.2.
The invention relates to a method for mounting a lightweight guide frame, which comprises the following steps:
the hoisting structural member 2 of the floating hoisting point structure is connected with the frame structural member 1 through a steel wire rope 3, so that a rigid connecting piece between the frame structural member 1 and the hoisting structural member 2 is omitted, and the weight of the guide frame is greatly reduced; at this time, the small-tonnage floating crane can lift the structural member 2 to a target station, and when the shallow foundation (such as the suction bucket 1.3 in this embodiment) at the bottom of the frame structural member 1 sinks into the seabed by a designed depth, the steel wire rope 3 between the lifting structural member 2 and the frame structural member 1 is in a tensioned state.
The lightweight guide frame can adapt to the water depths of wind fields in different sea areas, when the water depths of different wind fields are changed in a small range, the floating point is enabled to integrally float up and down by adjusting the load on the buoy 2.2, the small-range change of the heights of the upper lifting point 2.1.1 and the operating platform 2.3 above the water surface is ensured, the steel wire rope 3 is enabled to be in a tensioning state, and therefore the displacement of the floating point under the action of the marine environmental force is limited within a design allowable wide range. When the water depth changes and exceeds the self-load-adjusting capacity of the buoy 2.2 (such as more than 5 meters), the steel wire ropes 3 with different lengths can be conveniently replaced, so that compared with a guide frame with a fixed structure, the cost is reduced, the field flexible adjustment can be realized, the construction is more flexible, and the marine floating type floating guide frame is more suitable for marine construction environments.
In addition: it should be noted that the above-mentioned embodiment is only a preferred embodiment of the present patent, and any modification or improvement made by those skilled in the art based on the above-mentioned conception is within the protection scope of the present patent.
Claims (5)
1. The utility model provides a lightweight leading truck, includes support body structure spare (1) and the lifting structure spare (2) that link to each other with it, its characterized in that: the frame body structural part (1) is connected with the hoisting structural part (2) through four steel wire ropes (3), and the hoisting structural part (2) is provided with a buoy structure.
2. The light weight guide frame of claim 1, wherein: the frame structure member (1) comprises a truss structure (1.1), a lifting point (1.1.1) is arranged on the truss structure (1.1), and a guide cylinder (1.2) and a suction bucket (1.3) are arranged on the truss structure (1.1);
the hoisting structure (2) comprises a hoisting rod (2.1), a buoy (2.2) is installed on the hoisting rod (2.1), an upper hoisting point (2.1.1) and a lower hoisting point (2.1.2) are arranged on the outer wall of the hoisting rod (2.1), and a steel wire rope (3) is connected between the lower hoisting point (2.1.2) and a hoisting point (1.1.1).
3. The light weight guide frame of claim 2, wherein: an operating platform (2.3) is installed on the suspender (2.1), and the operating platform (2.3) is positioned between the upper hoisting point (2.1.1) and the lower hoisting point (2.1.2).
4. A method for mounting a lightweight guide frame is characterized in that: the hoisting structure member (2) of the floating hoisting point structure is connected with the frame structure member (1) through a steel wire rope (3), the floating crane hoists the hoisting structure member (2) to a target station, and after the bottom of the frame structure member (1) is sunk into a seabed by a designed depth, the steel wire rope (3) between the hoisting structure member (2) and the frame structure member (1) is in a tensioning state.
5. The method of mounting a light weight guide frame according to claim 4, wherein: when the water depths of different wind fields change slightly, the floating point is wholly floated up and down by load adjustment on the floating drum (2.2), and the steel wire rope (3) is ensured to be in a tensioning state; when the water depth changes and exceeds the self load regulation capacity of the buoy (2.2), the steel wire ropes (3) with different lengths are replaced to match the construction environment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210428347.0A CN114837185A (en) | 2022-04-22 | 2022-04-22 | Light guide frame and mounting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210428347.0A CN114837185A (en) | 2022-04-22 | 2022-04-22 | Light guide frame and mounting method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114837185A true CN114837185A (en) | 2022-08-02 |
Family
ID=82566422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210428347.0A Pending CN114837185A (en) | 2022-04-22 | 2022-04-22 | Light guide frame and mounting method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114837185A (en) |
-
2022
- 2022-04-22 CN CN202210428347.0A patent/CN114837185A/en active Pending
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