CN113006075B - Steel pipe pile implanting method for implanting rock-socketed pile foundation construction - Google Patents
Steel pipe pile implanting method for implanting rock-socketed pile foundation construction Download PDFInfo
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- CN113006075B CN113006075B CN202110140972.0A CN202110140972A CN113006075B CN 113006075 B CN113006075 B CN 113006075B CN 202110140972 A CN202110140972 A CN 202110140972A CN 113006075 B CN113006075 B CN 113006075B
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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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- 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
- 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
- E02D5/30—Prefabricated piles made of concrete or reinforced concrete or made of steel and concrete
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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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Abstract
The invention discloses a steel pipe pile implanting method for implanting rock-socketed pile foundation construction, which is characterized in that steel pipe pile manufacturing and concrete filling construction are completed in a factory, and after the steel pipe pile is transported to the site, the steel pipe pile is hung at a position 0.45m away from the top of a steel casing through a hoisting steel wire rope, a hanging hanger, a hanging steel wire rope, a cushion block, an annular beam and a support bracket, so that the steel pipe pile implanting construction is completed. The invention changes the construction of filling concrete in the steel pipe pile from in-situ casting to in-plant prefabrication, thereby saving the process of pouring concrete on the sea, reducing the service time of ships, improving the pile planting efficiency and accelerating the construction progress; the construction process of the invention is coherent, the operation time is short, the plane position, the verticality and the pile top elevation of the steel pipe pile can be accurately controlled, the hanging sling, the steel wire rope, the annular beam and the supporting bracket can be repeatedly used, and the construction cost is saved.
Description
Technical Field
The invention relates to the field of wind power and bridge construction, in particular to a steel pipe pile implanting method for implanting rock-socketed pile foundation construction in an offshore wind power plant.
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 basic types of the fans are various, the difference of applicable geological conditions is large, the basic types are comprehensively influenced by factors such as geology, climate, waves, water flow and tides, and the appropriate basic types are very important for the construction of offshore wind power plants, so that the basic types are preferably used according to the principles of safety, economy, practicability and durability.
For the construction conditions of severe sea conditions, complex geology and rock formations below weathering during pile foundation embedding, the foundation types which can be adopted are a core column rock-embedded foundation and an embedded rock foundation, wherein the core column rock-embedded foundation has long construction period, more working procedure conversion times and more supporting facilities, and the construction period of a project is seriously influenced. In order to improve the offshore construction efficiency and shorten the construction period, a new rock-socketed pile implanting method is needed.
Disclosure of Invention
The invention aims to provide a steel pipe pile implanting method for implanting rock-socketed pile foundation construction, which can improve pile implanting efficiency and quicken construction progress, and can effectively improve offshore operation efficiency, shorten construction period, reduce offshore ship equipment and save construction cost.
The invention is realized by the following steps:
a steel pipe pile implanting method for implanting rock-socketed pile foundation construction comprises the following specific steps:
(1) the steel pipe pile comprises a steel pipe, inner filling concrete, a main lifting lug, a limiting device and a turning-over lifting lug; completing pipe joint manufacturing in a steel structure processing plant, and assembling a plurality of sections of pipe joints into a steel pipe; 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, 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, the two main lifting lugs and the two limiting devices are on the same horizontal plane, and a pair of turning-over lifting lugs are symmetrically welded on the left outer side wall and the right outer side wall of the middle lower part of the steel pipe; pouring internal filling concrete in the steel pipe through an upper pump to form a steel pipe pile; after the steel pipe pile is manufactured, shipping and transporting the steel pipe pile to a construction hole site;
(2) erecting a tool platform, inserting and driving a steel pile casing (the inner diameter of the steel pile casing is 50cm larger than the outer diameter of the steel pipe pile), drilling a rock-socketed pile and cleaning the hole in a construction site;
(3) after the hole inspection is qualified, 4 supporting brackets are uniformly distributed and welded on the outer side wall at a position 0.45m away from the top of the steel casing, a ring beam is arranged on the supporting brackets, and the supporting brackets and the ring beam are firmly welded;
(4) anchoring the floating crane in place, and standing the transport ship and the floating crane in parallel; a hoisting steel wire rope, a hanging hanger and a hanging steel wire rope are sequentially hung on the left lifting hook of the floating crane, and the hanging steel wire rope is connected with a main lifting lug of the steel pipe pile; a turning steel wire rope is hung on a lifting hook on the right side of the floating crane and is connected with a turning lifting lug of the steel pipe pile;
(5) the left lifting hook and the right lifting hook of the floating crane simultaneously lift the steel pipe pile to a designed height, the suspension arm of the floating crane rotates to an open position, the right lifting hook falls and the left lifting hook lifts to complete vertical rotation of the steel pipe pile, at the moment, the left lifting hook of the floating crane is connected with a main lifting lug of the steel pipe pile through a hoisting steel wire rope, a hanging hanger and a hanging steel wire rope, and a turnover steel wire rope hung on the right lifting hook of the floating crane is separated from the turnover lifting lug of the steel pipe pile;
(6) the steel pipe pile is hung by the floating crane and moved to a construction hole site, and slurry in the steel casing is pumped out to a slurry ship before the steel pipe pile is put down; when the mud surface in the steel casing is 3-4 m higher than the sea level, stopping pumping the mud, aligning the steel pipe pile to the center of the steel casing, slowly lowering the steel pipe pile to a position 1.5m away from the top of the annular beam along the steel casing, and cutting off the turning-over lifting lug;
(7) continuing to lower the steel casing to the position, 1.5m away from the top surface of the annular beam, of the top of the steel pipe pile, welding a limiting plate outside the main lifting lug and the limiting device, wherein the clearance between the limiting plate and the inner diameter of the steel casing is smaller than 1.0cm, and meanwhile, arranging a measuring rope at the top of the steel pipe pile for measuring the implantation depth of the steel pipe pile and controlling the top elevation of the steel pipe pile;
(8) continuously lowering the steel pipe pile to a designed position along the steel casing, wherein the hanging hanger is positioned right above the annular beam, and measuring the height of a lifting pad between the hanging hanger and the annular beam; after the measurement is finished, the steel pipe pile is lifted by 1.0m, a cushion block is arranged on the annular beam and is positioned right above the supporting bracket, and after the position and the height of the lifting cushion are ensured to be correct, the cushion block and the annular beam are welded firmly by adopting a welding seam;
(9) after the height mark of the top of the steel pipe pile is measured again, the connection between the suspension hanger and the hoisting steel wire rope is removed after the design requirement is met;
(10) and (5) repeating the steps (4), (5), (6), (7), (8) and (9) to complete the implantation construction of the remaining two steel pipe piles.
Compared with the prior art, the invention has the advantages that:
1. the construction of filling concrete in the steel pipe pile is changed from in-situ casting to in-plant prefabrication, so that the offshore concrete casting process is omitted, the using time of a ship is reduced, the pile planting efficiency is improved, and the construction progress is accelerated;
2. the steel pipe pile implantation construction process is coherent, the operation time is short, and the plane position, the verticality and the pile top elevation of the steel pipe pile can be accurately controlled;
3. the hanging sling, the hoisting steel wire rope, the hanging steel wire rope, the turning-over steel wire rope, the annular beam and the support bracket can be repeatedly used, so that the construction cost is saved;
4. the method can quickly complete steel pipe pile implantation construction and effectively ensure the construction period under the construction conditions that the wind turbine foundation is located in a rock stratum with severe sea conditions, complex geology and weathered pile foundations needing to be embedded.
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 top view taken at B-B of FIG. 1;
FIG. 4 is a steel pipe pile hanging floor plan;
FIG. 5 is a layout view of the hanging side of the steel pipe pile;
FIG. 6 is construction drawings of steps (2) and (3) of steel pipe pile implantation construction;
FIG. 7 is a construction drawing of the step (4) of steel pipe pile implantation construction;
FIG. 8 is a construction drawing of the step (5) of steel pipe pile implantation construction;
FIG. 9 is construction views of steps (6) and (7) in steel pipe pile implantation construction;
fig. 10 is a construction view of steps (8) and (9) of the steel pipe pile implantation construction.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples.
With reference to the attached figures 6-9, a steel pipe pile implanting method for implanting rock-socketed pile foundation construction comprises the following specific steps:
A. the steel pipe pile comprises a steel pipe 1, inner filling concrete 2, a main lifting lug 3, a limiting device 4 and a turnover lifting lug 5; the pipe joint manufacturing is completed in a steel structure processing factory, and a plurality of sections of pipe joints are assembled into a steel pipe 1; a pair of main lifting lugs 3 are symmetrically welded on the left and right outer side walls of the upper part of the steel pipe 1, a pair of limiting devices 4 are symmetrically welded on the front and rear outer side walls of the upper part of the steel pipe 1, the two main lifting lugs 3 and the two limiting devices 4 are on the same horizontal plane, and a pair of turning-over lifting lugs 5 are symmetrically welded on the left and right outer side walls of the middle lower part of the steel pipe 1; pouring the filling concrete 2 in the steel pipe 1 through an overhead pump to form a steel pipe pile; after the steel pipe pile is manufactured, shipping and transporting the steel pipe pile to a construction hole site;
B. erecting a tool platform 16, inserting and driving a steel pile casing 17 (the inner diameter of the steel pile casing is 50cm larger than the outer diameter of the steel pipe pile), drilling a rock-socketed pile and cleaning the hole on a construction site;
C. after the hole inspection is qualified, 4 supporting brackets 7 are uniformly welded on the outer side wall 0.45m away from the top of the steel casing 17, a ring beam 8 is arranged on the supporting brackets 7, and the supporting brackets and the ring beam are firmly welded;
D. anchoring the floating crane 14 in place, and standing the transport ship 15 and the floating crane 14 in parallel; a hoisting steel wire rope 12, a hanging hanger 10 and a hanging steel wire rope 11 are sequentially hung on the left lifting hook of the floating crane 14, and the hanging steel wire rope 11 is connected with the main lifting lug 3 of the steel pipe pile; a turning steel wire rope 13 is hung on a lifting hook on the right side of the floating crane 14, and the turning steel wire rope 13 is connected with a turning lifting lug 5 of the steel pipe pile;
E. the left lifting hook and the right lifting hook of the floating crane 14 simultaneously lift the steel pipe pile to a designed height, the lifting arm of the floating crane 14 rotates to an open position, the right lifting hook falls and the left lifting hook lifts to complete vertical rotation of the steel pipe pile, at the moment, the left lifting hook of the floating crane 14 is connected with a main lifting lug 3 of the steel pipe pile through a hoisting steel wire rope 12, a hanging hanger 10 and a hanging steel wire rope 11, and a turnover steel wire rope 13 hung on the right lifting hook of the floating crane 14 is separated from a turnover lifting lug 5 of the steel pipe pile;
F. the floating crane 14 hangs the steel pipe pile and moves to a hole site, and before the steel pipe pile is put down, slurry in the steel casing 17 is pumped out to a slurry ship; and when the slurry surface in the steel casing 17 is 3-4 m higher than the sea level, stopping pumping the slurry, aligning the steel pipe pile to the center of the steel casing 17, slowly lowering the steel casing 17 to a position 1.5m away from the top of the annular beam 8 of the turnover lifting lug 5, and cutting off the turnover lifting lug 5.
G. Continuously lowering the steel casing 17 to the position, 1.5m away from the top surface of the ring beam 8, of the top of the steel pipe pile, welding a limiting plate 6 outside the main lifting lug 3 and the limiting device 4, wherein the clearance between the limiting plate 6 and the inner diameter of the steel casing 17 is smaller than 1.0cm, and meanwhile, arranging a measuring rope at the top of the steel pipe pile for measuring the implantation depth of the steel pipe pile and controlling the top elevation of the steel pipe pile;
H. continuously lowering the steel pipe pile to a designed position along the steel casing 17, wherein the hanging hanger is positioned right above the annular beam, and measuring the height of a lifting pad between the hanging hanger 10 and the annular beam 8; after the measurement is finished, the steel pipe pile is lifted by 1.0m, a cushion block 9 is arranged on the annular beam 8, the cushion block 9 is positioned right above the support bracket 7, and after the position and the height of the landing pad are ensured to be correct, the cushion block 9 and the annular beam 8 are welded firmly by adopting a welding seam;
I. the floating crane 14 is loosely hooked until the suspension hanger 10 is placed on the top surface of the cushion block 9, the elevation of the top of the steel pipe pile is retested, and after the design requirements are met, the connection between the suspension hanger 10 and the hoisting steel wire rope 12 is removed;
J. and repeating the step D, E, F, G, H, I to complete the implantation construction of the remaining two steel pipe piles.
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 steel pipe pile implanting method for implanting rock-socketed pile foundation construction is characterized by comprising the following steps: the method comprises the following specific steps:
(1) the steel pipe pile comprises a steel pipe, inner filling concrete, a main lifting lug, a limiting device and a turning-over lifting lug; completing pipe joint manufacturing in a steel structure processing plant, and assembling a plurality of sections of pipe joints into a steel pipe; 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, 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, the two main lifting lugs and the two limiting devices are on the same horizontal plane, and a pair of turning-over lifting lugs are symmetrically welded on the left outer side wall and the right outer side wall of the middle lower part of the steel pipe; pouring the filling concrete in the steel pipe through an overhead pump to form a steel pipe pile; after the steel pipe pile is manufactured, shipping and transporting the steel pipe pile to a construction hole site;
(2) the job site carries out that tooling platform sets up, a steel protects a section of thick bamboo and inserts and beat, embedded rock pile drilling, clear hole construction, wherein: the inner diameter of the steel casing is 50cm larger than the outer diameter of the steel pipe pile;
(3) after the hole inspection is qualified, 4 supporting brackets are uniformly distributed and welded on the outer side wall at a position 0.45m away from the top of the steel casing, a ring beam is arranged on the supporting brackets, and the supporting brackets and the ring beam are firmly welded;
(4) anchoring the floating crane in place, and standing the transport ship and the floating crane in parallel; a hoisting steel wire rope, a hanging hanger and a hanging steel wire rope are sequentially hung on the left lifting hook of the floating crane, and the hanging steel wire rope is connected with a main lifting lug of the steel pipe pile; a turning steel wire rope is hung on a lifting hook on the right side of the floating crane and is connected with a turning lifting lug of the steel pipe pile;
(5) the left lifting hook and the right lifting hook of the floating crane simultaneously lift the steel pipe pile to a designed height, the suspension arm of the floating crane rotates to an open position, the right lifting hook falls and the left lifting hook lifts to complete vertical rotation of the steel pipe pile, at the moment, the left lifting hook of the floating crane is connected with a main lifting lug of the steel pipe pile through a hoisting steel wire rope, a hanging hanger and a hanging steel wire rope, and a turnover steel wire rope hung on the right lifting hook of the floating crane is separated from the turnover lifting lug of the steel pipe pile;
(6) the steel pipe pile is hung by the floating crane and moved to a hole site, and slurry in the steel casing is pumped out to a slurry ship before the steel pipe pile is put down; when the mud surface in the steel casing is 3-4 m higher than the sea level, stopping pumping the mud, aligning the steel pipe pile to the center of the steel casing, slowly lowering the steel pipe pile to a position 1.5m away from the top of the annular beam along the steel casing, and cutting off the turning-over lifting lug;
(7) continuing to lower the steel casing to the position, 1.5m away from the top surface of the annular beam, of the top of the steel pipe pile, welding a limiting plate outside the main lifting lug and the limiting device, wherein the clearance between the limiting plate and the inner diameter of the steel casing is smaller than 1.0cm, and meanwhile, arranging a measuring rope at the top of the steel pipe pile for measuring the implantation depth of the steel pipe pile and controlling the top elevation of the steel pipe pile;
(8) continuously lowering the steel pipe pile to a designed position along the steel casing, wherein the hanging hanger is positioned right above the annular beam, and measuring the height of a lifting pad between the hanging hanger and the annular beam; after the measurement is finished, the steel pipe pile is lifted by 1.0m, a cushion block is arranged on the annular beam and is positioned right above the supporting bracket, and after the position and the height of the lifting cushion are ensured to be correct, the cushion block and the annular beam are welded firmly by adopting a welding seam;
(9) the floating crane is loosely hooked to the suspension hanger and is placed on the top surface of the cushion block, the elevation of the top of the steel pipe pile is measured again, and after the design requirements are met, the connection between the suspension hanger and the hoisting steel wire rope is removed;
(10) and (5) repeating the steps (4), (5), (6), (7), (8) and (9) to complete the implantation construction of the remaining two steel pipe piles.
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| CN113684821B (en) * | 2021-08-13 | 2023-03-10 | 中交第三航务工程局有限公司江苏分公司 | Core pile preparation method of offshore implantable rock-socketed pile |
| CN113942921A (en) * | 2021-10-26 | 2022-01-18 | 上海东鼎钢结构有限公司 | Large-scale steel structure detachable lifting appliance tool |
| CN114775604A (en) * | 2022-03-08 | 2022-07-22 | 中铁大桥局集团第五工程有限公司 | Construction method for underwater positioning of steel pipe pile implanted into rock-socketed foundation |
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| CN1896383B (en) * | 2005-07-14 | 2011-12-07 | 胡柏英 | Steel-pipe concrete assembled pile of predrilled hole rock-embedded and its construction |
| CN102086645B (en) * | 2009-12-07 | 2012-05-23 | 中交第三航务工程勘察设计院有限公司 | Socketed pile and construction method thereof |
| CN202187340U (en) * | 2011-07-15 | 2012-04-11 | 中交水运规划设计院有限公司 | Socketed pile with concrete-filled steel tube core column |
| CN103924585B (en) * | 2014-05-06 | 2015-12-02 | 江苏蓝潮海洋风电工程建设有限公司 | The construction method of wind-powered electricity generation socketed pile |
| CN205502008U (en) * | 2016-03-30 | 2016-08-24 | 上海城建市政工程（集团）有限公司 | A location structure for suddenling change on a section of thick bamboo is protected in cross -section drilled pile stake |
| CN205804363U (en) * | 2016-06-12 | 2016-12-14 | 中交一公局第三工程有限公司 | A kind of floating, fixing convertible pile foundation in water construction platform device |
| CN107142929A (en) * | 2017-05-25 | 2017-09-08 | 中国电建集团华东勘测设计研究院有限公司 | Sea is non-to squeeze into type large diameter single pile foundation structure and its construction method |
| CN109853567B (en) * | 2018-12-26 | 2020-11-03 | 中交第三航务工程局有限公司 | Pile sinking method for offshore wind power rock-socketed steel pipe pile |
| CN109811767B (en) * | 2019-01-29 | 2024-05-17 | 广州打捞局 | Pile sinking positioning frame for suction bucket foundation |
| CN111593728A (en) * | 2020-06-05 | 2020-08-28 | 中交第三航务工程局有限公司 | Embedded rock-socketed pile 'pile-first method' interpolation type jacket foundation construction system |
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Effective date of registration: 20230316 Address after: 332000 No.20, baishuihu Road, Xunyang District, Jiujiang City, Jiangxi Province Patentee after: THE 5TH ENGINEERING Co.,Ltd. MBEC Patentee after: GUANGDONG YUEDIAN YANGJIANG OFFSHORE WIND POWER CO.,LTD. Patentee after: Guangdong Yuedian Zhuhai offshore wind power Co.,Ltd. Address before: 332000 No.20, baishuihu Road, Xunyang District, Jiujiang City, Jiangxi Province Patentee before: THE 5TH ENGINEERING Co.,Ltd. MBEC |
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