CN114775604A - Construction method for underwater positioning of steel pipe pile implanted into rock-socketed foundation - Google Patents
Construction method for underwater positioning of steel pipe pile implanted into rock-socketed foundation Download PDFInfo
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- CN114775604A CN114775604A CN202210218220.6A CN202210218220A CN114775604A CN 114775604 A CN114775604 A CN 114775604A CN 202210218220 A CN202210218220 A CN 202210218220A CN 114775604 A CN114775604 A CN 114775604A
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- steel pipe
- pipe pile
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- steel
- construction
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 103
- 239000010959 steel Substances 0.000 title claims abstract description 103
- 238000010276 construction Methods 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 claims abstract description 7
- 238000007667 floating Methods 0.000 claims description 15
- 239000000725 suspension Substances 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 238000005259 measurement Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 2
- 230000000007 visual effect Effects 0.000 abstract description 2
- 239000011435 rock Substances 0.000 description 5
- 238000002513 implantation Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
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Classifications
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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
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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
-
- 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
- E02D13/06—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers for observation while placing
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
- E02D5/28—Prefabricated piles made of steel or other metals
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- 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)
- General Engineering & Computer Science (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention discloses a construction method for underwater positioning of an implanted rock-socketed foundation steel pipe pile. The underwater steel pipe pile positioning construction method can realize underwater positioning construction of the steel pipe pile, is simple and flexible in structure and convenient to construct, saves materials and simplifies construction procedures; the lifting lugs and the limiting devices are arranged on the outer side of the upper part of the steel pipe pile, and the positioning blocks are welded during lower laying construction, so that the plane position of the steel pipe pile can be accurately controlled, and the steel pipe pile is simple and convenient to construct and flexible to operate; the pile top elevation of the underwater steel pipe pile can be directly measured by adopting the steel wire measuring rope, underwater measurement is converted into overwater control, the method is visual and controllable, and launching construction and underwater measurement work is avoided.
Description
Technical Field
The invention relates to the field of wind power and bridge construction, in particular to a construction method for underwater positioning of steel pipe piles implanted into rock-socketed foundations.
Background
The foundation construction technology in the offshore wind power plant construction is high in requirement and complex in process, and is a key factor in the wind power plant construction process. The wind turbine foundation types are various, the difference of applicable geological conditions is large, the wind turbine foundation types are comprehensively influenced by factors such as geology, climate, waves, water flow and tides, and the appropriate foundation type is very important for the construction of offshore wind farms, so that the wind turbine foundation types are preferably used according to the principles of safety, economy, practicability and durability.
The embedded rock foundation is suitable for a fan foundation form with a shallow covering layer and a pile foundation needing to be embedded into a rock stratum below weathered middle, and can be used for construction conditions with severe sea conditions and complex geology.
At present, the embedded rock foundation is the world initiative, and the construction experience of reference is unavailable. The steel pipe pile implanted into the rock-socketed foundation has the advantages of heavy weight, long pile length and pile top below the water surface, and the underwater positioning construction difficulty of the steel pipe pile is high during construction, so that the installation precision is difficult to guarantee. In order to ensure the construction precision of the steel pipe pile implanted with the rock-socketed foundation, accelerate the construction progress and ensure the construction safety, the invention provides a construction method for underwater positioning of the steel pipe pile.
Disclosure of Invention
The invention aims to provide a construction method for underwater positioning of an embedded rock foundation steel pipe pile, which is simple and convenient to construct and high in installation precision, and can effectively reduce the construction difficulty and ensure the construction precision.
The purpose of the invention is realized as follows:
a construction method for underwater positioning of an embedded rock foundation steel pipe pile is characterized by comprising the following steps: the method comprises the following specific steps:
A. a pair of main lifting lugs is symmetrically welded on the left outer side wall and the right outer side wall of the upper part of the steel pipe pile, a pair of limiting devices is symmetrically welded on the front outer side wall and the rear outer side wall of the upper part of the steel pipe pile, and the two main lifting lugs and the two limiting devices are on the same horizontal plane; the two main lifting lugs and the two limiting devices jointly form a steel pipe pile positioning device;
B. the upper end of a hoisting steel wire rope is hung on a floating crane lifting hook before hoisting, the lower end of the hoisting steel wire rope is fixed on a hanging lug of a hanging hanger, a floating crane is adopted in a construction site to lift and lower a steel pipe pile through the hanging hanger and the hanging steel wire rope, the center of the steel pipe pile is aligned to the center of a steel pile casing, the steel pile casing is slowly lowered to the position 1.5m away from the top surface of a hanging platform along the steel pile casing, positioning blocks are welded on the outer sides of a main lifting lug and a limiting device, the clearance between the outer edge of each positioning block and the inner wall of the steel pile casing is not more than 1.0cm, and two steel wire measuring ropes are arranged on the pile top and used for measuring the lowering depth of the steel pipe pile and controlling the pile top elevation of the steel pipe pile;
C. continuously lowering the steel pipe pile along the steel casing, and when the distance between the pile top and the designed elevation is about 0.5m, respectively measuring the height H1 between the pile top and the bottom surface of the suspension hanger and the height H2 between the pile top and the top surface of the suspension platform by using a steel wire measuring rope, and calculating the height H3 between the bottom surface of the suspension hanger and the top surface of the suspension platform, wherein H3= H1-H2;
D. installing a cushion block on the top surface of the hanging platform, and after ensuring that the position and the height H3 of the landing pad are correct, firmly welding the cushion block and the hanging platform by adopting a welding seam;
E. the floating crane slowly loosens the lifting hook of the floating crane until the hanging hanger is placed on the top surface of the cushion block, the elevation of the pile top is remeasured by using the steel wire measuring rope, and after the design requirement is met, the connection between the hoisting steel wire rope and the lifting hook of the floating crane is removed;
F. and repeating the step B, C, D, E to finish the lowering installation construction of the rest steel pipe piles.
According to the invention, a pair of main lifting lugs are arranged on the left outer side wall and the right outer side wall of the same horizontal plane at the upper part of the steel pipe pile, a pair of limiting devices are arranged on the front outer side wall and the rear outer side wall, positioning blocks are welded on the outer sides of the main lifting lugs and the limiting devices when the steel pipe pile is placed down for horizontal positioning of the steel pipe pile, and a steel wire measuring rope is installed on the pile top for controlling the elevation of the pile top, so that the underwater positioning construction of the steel pipe pile is completed.
Compared with the prior art, the invention has the advantages that:
1. the outer side of the upper part of the steel pipe pile is provided with a lifting lug and a limiting device, a positioning block is welded on site during laying construction, and the plane position of the steel pipe pile can be accurately controlled;
2. the two steel wire measuring ropes are arranged at the top of the steel pipe pile, the pile top elevation of the underwater steel pipe pile can be directly measured and controlled on a construction platform, underwater measurement is converted into overwater control, the underwater steel pipe pile is visual and controllable, and launching construction and underwater measurement work is avoided;
3. the underwater steel pipe pile positioning device can realize underwater positioning construction of steel pipe piles, is simple and flexible in structure, simple and convenient in construction, high in installation precision and flexible in operation, saves materials and simplifies construction procedures.
Drawings
FIG. 1 is a schematic structural view of a steel pipe pile;
FIG. 2 is a top view taken at A-A of FIG. 1;
FIG. 3 is a vertical plane layout of steel pipe pile hanging;
FIG. 4 is a layout view of the hanging side of the steel pipe pile;
FIG. 5 is a construction drawing of step B of steel pipe pile implantation construction
FIG. 6 is a construction drawing of step B of steel pipe pile implantation construction;
FIG. 7 is a construction drawing of step C of steel pipe pile implantation construction;
fig. 8 is a construction drawing of step D, E of steel pipe pile implantation construction.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings in conjunction with embodiments.
With reference to the attached drawings 1-8, an implementation mode of the construction method for underwater positioning of the steel pipe pile implanted with the rock-socketed foundation is as follows:
A. a pair of main lifting lugs 2 are symmetrically welded on the left outer side wall and the right outer side wall of the upper part of the steel pipe pile 1, a pair of limiting devices 3 are symmetrically welded on the front outer side wall and the rear outer side wall of the upper part of the steel pipe pile 1, and the two main lifting lugs 2 and the two limiting devices 3 are on the same horizontal plane; the two main lifting lugs 2 and the two limiting devices 3 jointly form a steel pipe pile positioning device;
B. the upper end of a hoisting steel wire rope 12 before hoisting is hung on a floating crane lifting hook 13, the lower end of the hoisting steel wire rope 12 is fixed on a hanging lug 14 of a hanging hanger 5, the floating hanger 4 is adopted in a construction site to lift and lower the steel pipe pile 1 through the hanging hanger 5 and the hanging steel wire rope 6, the center of the steel pipe pile 1 is aligned to the center of a steel casing 7, the steel casing 7 is slowly lowered to the position 1.5m away from the top surface of a hanging platform 8 along the top of the steel pipe pile 1 (hereinafter referred to as the pile top), a positioning block 9 is welded on the outer sides of a main lifting lug 2 and a limiting device 3, the gap between the outer edge of the positioning block 9 and the inner wall of the steel casing 7 is not more than 1.0cm, and meanwhile, two steel wire measuring ropes 10 are arranged on the pile top and used for measuring the lowering depth of the steel pipe pile 1 and controlling the pile top elevation of the steel pipe pile 1;
C. continuously lowering the steel pipe pile 1 along the steel casing 7, and when the pile top is about 0.5m away from the designed elevation, respectively measuring the height H1 from the pile top of the steel pipe pile 1 to the bottom surface of the hanging hanger 5 and the height H2 from the top surface of the hanging platform 8 by adopting a steel wire measuring rope 10, and calculating the height H3 of a landing pad between the bottom surface of the hanging hanger 5 and the top surface of the hanging platform 8, wherein H3= H1-H2;
D. installing a cushion block 11 on the top surface of the hanging platform 8, and after ensuring that the position and the height H3 of the landing pad are correct, firmly welding the cushion block 11 and the hanging platform 8 by adopting a welding seam;
E. the floating crane 4 slowly loosens the floating crane hook 13 until the hanging sling 5 is placed on the top surface of the cushion block 11, the steel wire measuring rope 10 is used for re-measuring the elevation of the pile top, and after the design requirement is met, the connection between the hoisting steel wire rope 12 and the floating crane hook 13 is removed;
F. and repeating the step B, C, D, E to finish the lowering, installation and construction of the rest steel pipe piles 1.
The present invention is not limited to the above-mentioned preferred embodiments, and any structural changes made under the teaching of the present invention shall fall within the protection scope of the present invention, which has the same or similar technical solutions as the present invention.
Claims (1)
1. A construction method for underwater positioning of steel pipe piles implanted into rock-socketed foundation is characterized by comprising the following steps: the method comprises the following specific steps:
A. a pair of main lifting lugs are symmetrically welded on the left outer side wall and the right outer side wall of the upper part of the steel pipe pile, a pair of limiting devices are symmetrically welded on the front outer side wall and the rear outer side wall of the upper part of the steel pipe pile, and the two main lifting lugs and the two limiting devices are on the same horizontal plane; the two main lifting lugs and the two limiting devices jointly form a steel pipe pile positioning device;
B. the upper end of a hoisting steel wire rope is hung on a floating crane hook before hoisting, the lower end of the hoisting steel wire rope is fixed on a hanger of a hanging hanger, a floating crane is adopted in a construction site to hoist and lower a steel pipe pile through the hanging hanger and the hoisting steel wire rope, the center of the steel pipe pile is aligned to the center of a steel protecting cylinder, when the steel protecting cylinder is slowly lowered to the position, 1.5m away from the top surface of a hanging platform, of the top of the steel pipe pile, a positioning block is welded on the outer side of a main lifting lug and the outer side of a limiting device, the gap between the outer edge of the positioning block and the inner wall of the steel protecting cylinder is not more than 1.0cm, and meanwhile, two steel wire measuring ropes are arranged at the pile top and used for measuring the lowering depth of the steel pipe pile and controlling the pile top elevation of the steel pipe pile;
C. continuously lowering the steel pipe pile along the steel casing, and when the distance between the pile top and the designed elevation is about 0.5m, respectively measuring the height H1 between the pile top and the bottom surface of the suspension hanger and the height H2 between the pile top and the top surface of the suspension platform by using a steel wire measuring rope, and calculating the height H3 between the bottom surface of the suspension hanger and the top surface of the suspension platform, wherein H3= H1-H2;
D. installing a cushion block on the top surface of the hanging platform, and after ensuring that the position and the height H3 of the lifting pad are correct, firmly welding the cushion block and the hanging platform by adopting a welding seam;
E. the floating crane slowly loosens the lifting hook of the floating crane until the hanging hanger is placed on the top surface of the cushion block, the elevation of the pile top is remeasured by using the steel wire measuring rope, and after the design requirement is met, the connection between the hoisting steel wire rope and the lifting hook of the floating crane is removed;
F. and repeating the step B, C, D, E to finish the lowering installation construction of the rest steel pipe piles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210218220.6A CN114775604A (en) | 2022-03-08 | 2022-03-08 | Construction method for underwater positioning of steel pipe pile implanted into rock-socketed foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210218220.6A CN114775604A (en) | 2022-03-08 | 2022-03-08 | Construction method for underwater positioning of steel pipe pile implanted into rock-socketed foundation |
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| Publication Number | Publication Date |
|---|---|
| CN114775604A true CN114775604A (en) | 2022-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210218220.6A Pending CN114775604A (en) | 2022-03-08 | 2022-03-08 | Construction method for underwater positioning of steel pipe pile implanted into rock-socketed foundation |
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| Country | Link |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019065755A1 (en) * | 2017-09-28 | 2019-04-04 | 調和工業株式会社 | Pile construction method, manifold device, and manifold device design method |
| CN113006075A (en) * | 2021-02-02 | 2021-06-22 | 中铁大桥局集团第五工程有限公司 | Steel pipe pile implanting method for implanting rock-socketed pile foundation construction |
| CN215165629U (en) * | 2021-04-07 | 2021-12-14 | 中交路桥建设有限公司 | Structure for lowering steel cofferdam by utilizing steel pipe pile of drilling platform |
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2022
- 2022-03-08 CN CN202210218220.6A patent/CN114775604A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019065755A1 (en) * | 2017-09-28 | 2019-04-04 | 調和工業株式会社 | Pile construction method, manifold device, and manifold device design method |
| CN113006075A (en) * | 2021-02-02 | 2021-06-22 | 中铁大桥局集团第五工程有限公司 | Steel pipe pile implanting method for implanting rock-socketed pile foundation construction |
| CN215165629U (en) * | 2021-04-07 | 2021-12-14 | 中交路桥建设有限公司 | Structure for lowering steel cofferdam by utilizing steel pipe pile of drilling platform |
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Application publication date: 20220722 |