CN114248061A - Novel process for lengthening large jacket steel pile - Google Patents
Novel process for lengthening large jacket steel pile Download PDFInfo
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- CN114248061A CN114248061A CN202111358039.7A CN202111358039A CN114248061A CN 114248061 A CN114248061 A CN 114248061A CN 202111358039 A CN202111358039 A CN 202111358039A CN 114248061 A CN114248061 A CN 114248061A
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- steel pile
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 154
- 239000010959 steel Substances 0.000 title claims abstract description 154
- 238000000034 method Methods 0.000 title claims abstract description 12
- 210000001503 joint Anatomy 0.000 claims abstract description 10
- 238000003466 welding Methods 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000004568 cement Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
- B23K37/0533—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor external pipe alignment clamps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a new process for lengthening a steel pile of a jacket, which comprises the steps of arranging steel pile buttresses on the horizontal ground of a lengthening area, arranging a three-dimensional adjusting machine near a third steel pile buttress by a forklift, placing two three-dimensional adjusting machines at the position of an lengthening opening and at the other end in advance, placing an adjusting buttress on the three-dimensional adjusting machine, symmetrically arranging the three-dimensional adjusting machine and the adjusting buttress below the steel pile, transporting two steel piles in sections to the upper parts of the steel pile buttresses by a lath, jacking, adjusting a jacking hydraulic cylinder, an X-direction telescopic hydraulic cylinder and a Y-direction telescopic hydraulic cylinder of the three-dimensional adjusting machine in a left-right and front-back manner, enabling the straightness of the second steel pile section and the first steel pile section to be on the same line, enabling the butt joint to have no staggered joint, locking a mechanical locking nut, welding the two steel piles in the butt joint together, withdrawing auxiliary devices such as the adjusting buttress and the three-dimensional adjusting machine, the invention can complete the extension of the steel pile section by section, and the invention ensures the linearity requirement of the whole steel pile.
Description
Technical Field
The invention relates to the technical field of steel pile lengthening, in particular to a novel process for lengthening a steel pile of a large jacket.
Background
The traditional large-scale jacket steel pile integral lengthening is generally completed on the site, and the circular seam straightness adjustment of the steel pile sectional lengthening cannot be realized due to the fact that a complete rotating tire operating line is not arranged on the site, so that the circular seam assembly work is generally completed by adopting a crane to hoist and mount the steel pile.
With the continuous advance of China's offshore oil development to the deepwater field, large-scale jackets are more and more widely applied. With the increase of various engineering projects, the resource utilization of cranes and rotary tires is also remarkably increased, and the resource arrangement of the cranes and the rotary tires of the various engineering projects cannot be simultaneously met in many cases. Because the tonnage and the length of the steel pile are very large, the steel pile is often assembled and lengthened by adopting a crane, so that a lot of crane resources are occupied, the utilization rate of the crane is very low, and the time consumed by the crane for hoisting the steel pile circumferential weld lengthening is very long, so that the steel pile lengthening period and the use cost of the crane are greatly increased; meanwhile, when the steel pile is hung and connected for long time, a sufficient crane operation area needs to be reserved, and therefore, a large field is occupied.
Disclosure of Invention
The present invention is intended to solve the above technical problems to some extent.
In view of the above, the invention provides a new process for lengthening a large jacket steel pile, which can accurately and quickly lengthen the steel pile to a preset position in two sections, ensures the requirement on the straightness of the whole steel pile, saves the service time of a crane, and improves the site utilization rate and the production efficiency.
In order to solve the technical problem, the invention provides a new process for lengthening a steel pile of a jacket, which comprises the following steps:
s1: arranging a first steel pile buttress, a second steel pile buttress, a third steel pile buttress and a fourth steel pile buttress on the horizontal ground of the extension area in sequence;
s2: paired three-dimensional adjusting machines are uniformly arranged near the third steel pile buttress and the fourth steel pile buttress;
s3: the first steel pile is placed on the first steel pile buttress and the second steel pile buttress in a subsection mode through a plate trailer, and the second steel pile is placed on the third steel pile buttress and the fourth steel pile buttress in a subsection mode;
s4: adjusting the second steel pile to be placed on the two paired three-dimensional adjusting machines in a segmented manner;
s5: adjusting the three-dimensional adjusting machine to enable the straightness of the second steel pile section and the straightness of the first steel pile section to be on the same line, and meanwhile enabling the butt joint to be seamless;
s6: and welding the two steel pile sections together by butt joint, withdrawing the first steel pile buttress, the second steel pile buttress, the third steel pile buttress, the fourth steel pile buttress and the three-dimensional adjusting machine, and completing the steel pile section lengthening work.
Furthermore, an adjusting buttress is respectively arranged at two ends of the steel pile section, and the upper surface of the adjusting buttress is an arc steel pile supporting plate which is seamlessly attached to the excircle of the steel pile section.
Further, in the step S3, the two paired three-dimensional adjusting machines are respectively spaced from the two ends of the supported steel pile segment by about 1.5 meters.
Further, two three-dimensional adjusting machines are symmetrically arranged.
Further, the three-dimensional adjusting machine comprises a supporting table, an X-direction telescopic hydraulic cylinder, a Y-direction telescopic hydraulic cylinder and a jacking hydraulic cylinder, the supporting table is used for fixing the X-direction telescopic hydraulic cylinder and the Y-direction telescopic hydraulic cylinder, an output shaft of the X-direction telescopic hydraulic cylinder and an output shaft of the Y-direction telescopic hydraulic cylinder are rotatably connected with the cylinder body of the jacking hydraulic cylinder, and the output shaft of the jacking hydraulic cylinder abuts against the second steel pile in a segmented mode.
Further, the first steel pile buttress, the second steel pile buttress, the third steel pile buttress and the fourth steel pile buttress are distributed at equal intervals.
Further, in step S2, the three-dimensional adjusting machine is disposed by using a forklift.
The invention has the technical effects that: by adopting the technical process, the invention has the advantages of simple structure and convenient installation, not only greatly reduces the integrated installation error and improves the installation quality, but also saves the installation time, greatly reduces the production cost and improves the production efficiency.
Drawings
Fig. 1 is a sectional extension of a large jacket steel pile according to the present invention;
FIG. 2 is a schematic view of a three-dimensional adjustment machine for a new process of lengthening large jacket steel piles according to the present invention;
fig. 3 is a schematic view of an adjustment buttress for a large jacket steel pile according to the present invention.
Wherein, 1-a first steel pile buttress; 2, segmenting the first steel pile; 3-second steel pile buttress; 4-a first three-position adjusting machine; 5-a first adjustment buttress; 6-a second three-position adjusting machine; 7-third steel pile buttress; 8-segmenting the second steel pile; 9-fourth steel pile buttress; 10-a third three-position adjusting machine; 11-a second adjustment buttress; 12-a fourth three-position adjusting machine; a 41-X direction telescopic hydraulic cylinder; a 42-Y direction telescopic hydraulic cylinder; 43-mechanical lock nut; 44-jacking hydraulic cylinders; 51-buttress beams; 52-arc steel pile supporting plate.
Detailed Description
The present invention is further described with reference to the following drawings and specific examples so that those skilled in the art can better understand the present invention and can practice the present invention, but the examples are not intended to limit the present invention.
As shown in fig. 1, 2 and 3, a new process for lengthening a jacket steel pile includes the following steps S1: arranging a first steel pile buttress 1, a second steel pile buttress 3, a third steel pile buttress 7 and a fourth steel pile buttress 9 on the horizontal ground of the lengthening area in sequence; s2: a pair of three-dimensional adjusting machines are uniformly arranged near the third steel pile buttress 7 and the fourth steel pile buttress 9; s3: placing the first steel pile subsection 2 on the first steel pile buttress 1 and the second steel pile buttress 3 by using a plate trailer, and placing the second steel pile subsection 8 on the third steel pile buttress 7 and the fourth steel pile buttress 9; s4: adjusting the second steel pile section 8 to be placed on the two paired three-dimensional adjusting machines; s5: adjusting the three-dimensional adjusting machine to enable the straightness of the second steel pile subsection 8 and the straightness of the first steel pile subsection 2 to be on the same line, and meanwhile enabling butt joints to be free of staggered joints; s6: and welding the two steel piles together by butt joint, withdrawing the first steel pile buttress 1, the second steel pile buttress 3, the third steel pile buttress 7, the fourth steel pile buttress 9 and the three-dimensional adjusting machine, and completing the segmental lengthening work of the steel piles.
According to the specific embodiment of the present invention, S1: arranging a first steel pile buttress 1, a second steel pile buttress 3, a third steel pile buttress 7 and a fourth steel pile buttress 9 on the cement ground of a site; s2: arranging a first three-dimensional adjusting machine 4, a second three-dimensional adjusting machine 6, a third three-dimensional adjusting machine 10 and a fourth three-dimensional adjusting machine 12 to the vicinity of a third steel pile buttress 7 and a fourth steel pile buttress 8 by adopting a forklift; s3: the buttress beams 51 in the first adjusting buttress 5 and the second adjusting buttress 11 are two I-shaped steel band brakes together, and the buttress beams 51 in the first adjusting buttress 5 and the second adjusting buttress 11 are located on the first three-dimensional adjusting machine 4, the second three-dimensional adjusting machine 6, the third three-dimensional adjusting machine 10 and the fourth three-dimensional adjusting machine 12 and are symmetrically arranged; s4: transporting the first steel pile subsection 2 and the second steel pile subsection 8 to the upper surfaces of a first steel pile buttress 1, a second steel pile buttress 3, a third steel pile buttress 7 and a fourth steel pile buttress 9 by using a plate trailer; s5: jacking, adjusting the first three-dimensional adjusting machine 4, the second three-dimensional adjusting machine 6, the third three-dimensional adjusting machine 10, the jacking hydraulic cylinder 44 of the fourth three-dimensional adjusting machine 12, the X-direction telescopic hydraulic cylinder 41 and the Y-direction telescopic hydraulic cylinder 42 in a left-right and front-back manner, enabling the steel pile supporting plates 52 of the first adjusting buttress 5 and the second adjusting buttress 11 to be attached to the outer circles of the first steel pile section 2 and the second steel pile section 8, adjusting the straightness of the second steel pile section 8 and the first steel pile section 2 to enable the straightness to be seamless with the joint, and then locking the mechanical locking nut 44; s6: and (3) welding the first steel pile subsection 2 and the second steel pile subsection 8 together by butt joint, withdrawing the first adjusting buttress 5, the second adjusting buttress 11, the first three-dimensional adjusting machine 4, the second three-dimensional adjusting machine 6, the third three-dimensional adjusting machine 10, the fourth three-dimensional adjusting machine 12 and other auxiliary devices, and completing lengthening of the steel pile subsections.
Specifically, two ends of the steel pile segment are respectively provided with an adjusting buttress, and the upper surface of the adjusting buttress is provided with an arc steel pile supporting plate 52 which is seamlessly attached to the excircle of the steel pile segment.
The adjusting buttress further comprises a buttress beam 51 connected with an arc steel pile supporting plate 52.
The two adjusting buttresses are respectively a first adjusting buttress 5 and a second adjusting buttress 11.
Specifically, in step S3, the first pair of three-dimensional adjustment machines are the first three-dimensional adjustment machine 4 and the second three-dimensional adjustment machine 6, respectively, and the first three-dimensional adjustment machine 4 and the second three-dimensional adjustment machine 6 are respectively spaced from the two ends of the supported steel pile segment by about 1.5 meters.
The second pair of three-dimensional trimmers is a third three-dimensional trimmer 10 and a fourth three-dimensional trimmer 12, respectively.
Specifically, two three-dimensional adjusting machines are symmetrically arranged.
Specifically, the three-dimensional adjusting machine includes a supporting table, X is to flexible pneumatic cylinder 41, Y is to flexible pneumatic cylinder 42 and jacking hydraulic cylinder 44, the cylinder body of X is to flexible pneumatic cylinder 41 and the flexible pneumatic cylinder 42 of Y to fixed to the supporting table, and the output shaft of X is to flexible pneumatic cylinder 41 and the output shaft of Y to flexible pneumatic cylinder 42 all rotates and connects jacking hydraulic cylinder 44, the output shaft of jacking hydraulic cylinder 44 supports with first piling bar subsection 2 or second piling bar subsection 8 and leans on, the flexible of the output shaft of X to flexible pneumatic cylinder 41 and the flexible pneumatic cylinder 42 of Y to, adjust the position of jacking hydraulic cylinder 44, the output shaft of jacking hydraulic cylinder 44 finally realizes adjusting the position of second piling bar subsection.
The output shaft of the jacking hydraulic cylinder 44 is provided with a mechanical lock nut 43 for supporting the first or second steel pile section 2, 8.
Specifically, the first steel pile buttress 1, the second steel pile buttress 3, the third steel pile buttress 7 and the fourth steel pile buttress 9 are distributed at equal intervals.
Specifically, in step S2, the three-dimensional adjusting machine is arranged by using a forklift.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (7)
1. A new technology for lengthening a steel pile of a jacket is characterized by comprising the following steps:
s1: arranging a first steel pile buttress, a second steel pile buttress, a third steel pile buttress and a fourth steel pile buttress on the horizontal ground of the extension area in sequence;
s2: paired three-dimensional adjusting machines are uniformly arranged near the third steel pile buttress and the fourth steel pile buttress;
s3: the first steel pile is placed on the first steel pile buttress and the second steel pile buttress in a subsection mode through a plate trailer, and the second steel pile is placed on the third steel pile buttress and the fourth steel pile buttress in a subsection mode;
s4: adjusting the second steel pile to be placed on the two paired three-dimensional adjusting machines in a segmented manner;
s5: adjusting the three-dimensional adjusting machine to enable the straightness of the second steel pile section and the straightness of the first steel pile section to be on the same line, and meanwhile enabling the butt joint to be seamless;
s6: and welding the two steel pile sections together by butt joint, withdrawing the first steel pile buttress, the second steel pile buttress, the third steel pile buttress, the fourth steel pile buttress and the three-dimensional adjusting machine, and completing the steel pile section lengthening work.
2. The new technology for lengthening a steel pile of a jacket according to claim 1, wherein two ends of the steel pile segment are respectively provided with an adjusting buttress, and the upper surface of the adjusting buttress is an arc steel pile supporting plate which is seamlessly attached to the excircle of the steel pile segment.
3. The new process for lengthening a steel pile of a jacket according to claim 1, wherein in the step S3, two pairs of three-dimensional adjusting machines are respectively spaced apart from the two ends of the supported steel pile section by about 1.5 m.
4. The new process for lengthening a jacket steel pile according to claim 1, wherein two of the three-dimensional adjusting machines are symmetrically arranged.
5. The new technology for lengthening a steel pile of a jacket according to claim 1, wherein the three-dimensional adjusting machine comprises a supporting table, an X-direction telescopic hydraulic cylinder, a Y-direction telescopic hydraulic cylinder and a jacking hydraulic cylinder, the supporting table fixes cylinder bodies of the X-direction telescopic hydraulic cylinder and the Y-direction telescopic hydraulic cylinder, an output shaft of the X-direction telescopic hydraulic cylinder and an output shaft of the Y-direction telescopic hydraulic cylinder are rotatably connected with the cylinder body of the jacking hydraulic cylinder, and the output shaft of the jacking hydraulic cylinder abuts against the second steel pile in sections.
6. The new technology of lengthening steel piles of jacket according to claim 1, wherein the first, second, third and fourth steel pile buttresses are distributed equidistantly.
7. The new process for lengthening a jacket steel pile according to claim 1, wherein the three-dimensional adjusting machine is arranged by using a forklift in the step S2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111358039.7A CN114248061A (en) | 2021-11-16 | 2021-11-16 | Novel process for lengthening large jacket steel pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111358039.7A CN114248061A (en) | 2021-11-16 | 2021-11-16 | Novel process for lengthening large jacket steel pile |
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| Publication Number | Publication Date |
|---|---|
| CN114248061A true CN114248061A (en) | 2022-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111358039.7A Pending CN114248061A (en) | 2021-11-16 | 2021-11-16 | Novel process for lengthening large jacket steel pile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114737574A (en) * | 2022-05-18 | 2022-07-12 | 江苏交水建智能装备研究院有限公司 | Foundation ditch intelligence fender pile system based on freezing construction method |
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| KR20200089128A (en) * | 2019-01-16 | 2020-07-24 | (주)티케이인더스트리 | Manufacturing equipment for Construction Pipe Supports |
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2021
- 2021-11-16 CN CN202111358039.7A patent/CN114248061A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101092012A (en) * | 2006-06-19 | 2007-12-26 | 斯奈克玛 | Part-holding device |
| CN102191925A (en) * | 2011-05-17 | 2011-09-21 | 中国石油化工股份有限公司 | External telescopic blow-out preventing pipe |
| CN102935575A (en) * | 2012-11-19 | 2013-02-20 | 南京奥特电气股份有限公司 | Large-pipe-diameter shell section pair group extension device |
| CN202894677U (en) * | 2012-11-19 | 2013-04-24 | 南京奥特电气股份有限公司 | Assembling and extending system for heavy loading of super long pipeline |
| CN205437730U (en) * | 2015-12-08 | 2016-08-10 | 天津博迈科海洋工程有限公司 | Three -dimensional heavily loaded coordinated control device of large -scale liquefied natural gas module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114737574A (en) * | 2022-05-18 | 2022-07-12 | 江苏交水建智能装备研究院有限公司 | Foundation ditch intelligence fender pile system based on freezing construction method |
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