CN109185558B - Method for underwater installation of large-diameter GRP pipeline - Google Patents
Method for underwater installation of large-diameter GRP pipeline Download PDFInfo
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- CN109185558B CN109185558B CN201810964033.6A CN201810964033A CN109185558B CN 109185558 B CN109185558 B CN 109185558B CN 201810964033 A CN201810964033 A CN 201810964033A CN 109185558 B CN109185558 B CN 109185558B
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- pipeline
- positioning
- hoop
- sleeve
- installing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/12—Laying or reclaiming pipes on or under water
- F16L1/16—Laying or reclaiming pipes on or under water on the bottom
- F16L1/161—Laying or reclaiming pipes on or under water on the bottom the pipe being composed of sections of short length
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/12—Laying or reclaiming pipes on or under water
- F16L1/16—Laying or reclaiming pipes on or under water on the bottom
- F16L1/165—Laying or reclaiming pipes on or under water on the bottom by towing the pipe on or near the bottom
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/12—Laying or reclaiming pipes on or under water
- F16L1/20—Accessories therefor, e.g. floats, weights
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/12—Laying or reclaiming pipes on or under water
- F16L1/20—Accessories therefor, e.g. floats, weights
- F16L1/235—Apparatus for controlling the pipe during laying
Abstract
The invention relates to a construction process, in particular to an underwater installation construction method of a large-diameter GRP pipeline. The underwater installation method for the large-diameter GRP pipeline comprises the steps of installing the pipeline by adopting a special butt-joint pull-in device, wherein the butt-joint pull-in device comprises a positioning hoop and a limiting hoop which are matched with each other, the positioning hoop and the limiting hoop are respectively installed on the adjacent end faces of the pipeline to be installed and a sleeve, the positioning hoop and the upper part of the limiting hoop are connected with a lifting bar through a sling, the lifting device lifts the lifting bar to transport the pipeline to be connected to an installation position, initial positioning is completed, accurate positioning is performed through a positioning system, the pipeline to be installed and the sleeve are pulled and fastened through the pull-in device arranged on the positioning hoop and the limiting hoop, and underwater installation and construction of the pipeline are completed. The process equipment is simple, the operation is convenient, the manufacturing cost of special tools such as the hoop and the hanging bar is low, the construction cost can be effectively reduced, and the construction method has high construction efficiency ratio and stable quality in the project practical application process.
Description
Technical Field
The invention relates to a construction process, in particular to an underwater installation construction method of a large-diameter GRP pipeline.
Background
Along with the improvement of social progress environmental protection consciousness, in the process of coastal power plant construction and the like, large-diameter glass reinforced plastic pipes need to be laid under water for taking and draining water, the underwater installation of thousands of glass reinforced plastic pipes is often needed, the engineering quantity is huge, the installation precision requirement is high, and therefore, the smooth installation and construction of the underwater large-diameter glass reinforced plastic pipes can be realized, and the method has decisive significance for the whole construction period. At present, the installation form of the underwater glass steel pipe is mainly socket joint type and sleeve type. In the past, the construction mainly adopts the technology of sling hoisting and chain block tensioning; or a pipeline mounting hanger is adopted to carry out pipeline hoisting and other methods. The construction method has the defects that the pipeline installation precision is not well controlled, the efficiency is not high, the engineering progress is slow, and the construction cost is high.
Disclosure of Invention
The invention aims to find a construction method for improving the underwater installation precision of the glass reinforced plastic pipe and greatly improving the construction efficiency on the premise of using simpler equipment or tools.
In order to achieve the purpose, the invention adopts the technical scheme that: the underwater installation method for the large-diameter GRP pipeline is characterized in that the pipeline is installed by adopting a special butt-joint pull-closing device, the butt-joint pull-closing device comprises a positioning hoop and a limiting hoop which are matched with each other for use, the positioning hoop and the limiting hoop are respectively installed on the adjacent end faces of the pipeline to be installed and a sleeve, the positioning hoop and the upper part of the limiting hoop are connected with a lifting bar through a sling, the lifting device lifts the lifting bar to transport the pipeline to be connected to an installation position, initial positioning is completed, accurate positioning is performed through a positioning system, the pipeline to be installed and the sleeve are pulled and fastened through the pull-closing device arranged on the positioning hoop and the limiting hoop, and underwater installation and construction of the pipeline are completed.
The method for underwater installation of the large-diameter GRP pipeline comprises the following steps:
the first step is as follows: installing a special butt-joint pull-joint device, installing a positioning hoop at the front end of the pipeline, and installing a limiting hoop at the end of the sleeve adjacent to the end; the rear end of the pipeline is provided with a limiting hoop, the end of the sleeve adjacent to the rear end of the pipeline is provided with a positioning hoop, the positioning hoop is provided with a positioning rod, the limiting hoop is provided with a positioning groove, and the positioning hoop and the limiting hoop are tightened by adopting a fastening belt so as to be tightly attached to the pipeline or the sleeve;
the second step is that: installing a sling, wherein two ends of a lifting bar are respectively connected with a positioning hoop and a limiting hoop which are installed on the pipeline by slings, the lifting bar is lifted by a crane, the pipeline is lifted to a specified position, so that a positioning rod can fall into a positioning groove, and the primary positioning of the pipeline is completed;
the third step: the pipeline is accurately positioned, and a positioning system on the hanging bar is adopted to guide the pipeline to adjust, so that the installation axis of the pipeline is in the range of the design important area, and the accurate positioning of the pipeline is completed;
the fourth step: the pipeline is pulled and fastened, a pulling and closing hydraulic jack is arranged between a positioning hoop and a limiting hoop on the adjacent end surfaces of the pipeline and the sleeve, and the hydraulic jack is operated to pull and close the pipeline slowly to enable the pipeline to enter the sleeve, so that the underwater installation of the pipeline is completed; monitoring the position deviation of the pipeline in the pulling-in process, and correcting if necessary;
the fifth step: and (3) locking and backfilling the pipeline, wherein the locked and backfilled pipeline is installed, and the pipeline is ballasted by using pier bags to prevent the pipeline from floating and rotating. Riprap ballasting is then performed until the pipeline is stable.
And in the second step, a plurality of hoisting eye plates are welded at the specified positions of the hoisting bar, so that the hoisting of pipelines or pipe groups with different lengths is met.
And the positioning system in the third step comprises a scanning measurement and control device, a data processing device and a GPS positioning device, wherein the data processing device is connected with the GPS positioning device and the scanning measurement and control device through data lines.
2 scanning measurement and control devices are arranged below the hanging bar, are 800mm away from the hanging bar and correspond to the sling; 1 GPS positioning device is respectively arranged at two ends above the hanging bar; and 1 data processing device is arranged in the middle above the hanging bar.
Compared with the prior construction method, the method for installing the pipeline by adopting the hydraulic pulling of the hanging bar and the measurement and control device has the advantages of accurate pipeline positioning, smooth pulling, greatly improved pipeline installation efficiency, less used equipment and simple structure, and creates favorable conditions for shortening the construction period and improving the construction quality in the construction process.
Drawings
Fig. 1 is a schematic view of the hoisting of the pipeline of the present invention.
FIG. 2 is a schematic drawing of the positioning and pulling-in of the pipeline according to the present invention.
Fig. 3 is a schematic view of the piping pier bag fixing of the present invention.
In the figure: 1-hanging bar, 2-positioning hoop, 3-hydraulic jack, 4-positioning rod, 5-limiting hoop, 6-sling, 7-scanning measurement and control device, 8-GPS positioning device, 9-data processing device, 10-fastening belt, 11-fixing belt, 12-pier bag and 13-gravel foundation.
Detailed Description
The invention will be further described with reference to the accompanying drawings, but the invention is not limited to the specific embodiments.
Example 1
The underwater installation and construction method for large-diameter GRP pipelines as shown in fig. 1-3 proposes to adopt a special butt-joint pull-closing device to clamp the installation pipeline, the butt-joint pull-closing device comprises a positioning hoop 2 and a limiting hoop 5 which are matched with each other for use, the positioning hoop 2 and the limiting hoop 5 are respectively installed on the adjacent end surfaces of the pipeline to be installed and the sleeve, the upper parts of the positioning hoop 2 and the limiting hoop 5 are connected with a lifting bar 1 through a sling 6, the lifting device lifting bar 1 is used for transporting the pipeline to be installed to an installation position, the initial positioning is completed, then the positioning system is used for accurately positioning, the pipeline to be installed and the sleeve are pulled and fastened through the pull-closing devices arranged on the positioning hoop 2 and the limiting hoop 5, the underwater installation and construction of the pipeline are completed, and the concrete:
the first step is as follows: installing a special butt-joint pull-joint device, installing a positioning hoop 2 at the front end of the pipeline, and installing a limiting hoop 5 at the end of the sleeve adjacent to the end; the rear end of the pipeline is provided with a limiting hoop 5, the end of the sleeve adjacent to the rear end is provided with a positioning hoop 2, the positioning hoop 2 is provided with a positioning rod 4, the limiting hoop is provided with a positioning groove matched with the positioning rod 4, and the positioning hoop 2 and the limiting hoop 5 are tightened by adopting a fastening belt 10 so as to be tightly attached to the pipeline or the sleeve;
the second step is that: installing a sling, wherein two ends of a hanging bar 1 are respectively connected with a positioning hoop 2 and a limiting hoop 5 which are installed on a pipeline by slings 6, the hanging bar 1 is hoisted by a crane to hoist the pipeline to a specified position, so that a positioning rod 4 can fall into a corresponding positioning groove to complete the initial positioning of the pipeline;
the third step: the pipeline is accurately positioned, and a positioning system on the hanging bar 1 is adopted to guide the pipeline to adjust, so that the installation axis of the pipeline is in the range of a design important area, and the accurate positioning of the pipeline is completed; the positioning system comprises a scanning measurement and control device 7, a data processing device 9 and a GPS positioning device 8, wherein the data processing device 9 is connected with the GPS positioning device 8 and the scanning measurement and control device 7 through data lines. 2 scanning measurement and control devices 7 are arranged below the hanging bar 1, and the scanning measurement and control devices 7 are 800mm away from the hanging bar and correspond to the slings 6 for connecting the hoop and the hanging bar; two ends above the hanging bar 1 are respectively provided with 1 GPS positioning device 8; the middle of the upper part of the hanging bar 1 is provided with 1 data processing device 9.
The scanning measurement and control device 7 can calculate the position of the pipeline relative to the hanging bar 1 according to the length of the sling 6 by scanning the swinging angles of the sling 6 in the front, back, left and right directions, the position of the hanging bar relative to the pipeline installation axis can be calculated by monitoring of the GPS positioning device, the position deviation of the pipeline is sent to a computer and monitored in real time through the WIFI by the data processing device 9, so that the pipeline installation axis is in the design requirement range, and the accurate positioning of the pipeline is completed.
The fourth step: the pipeline is pulled and fastened, a hydraulic jack 3 is arranged between a positioning hoop 2 and a limiting hoop 5 on the adjacent end surfaces of the pipeline and the sleeve, the jack 3 is firmly connected with the positioning hoop 2 and the limiting hoop 5, the hydraulic jack 3 is operated to slowly pull and close the pipeline to enable the pipeline to enter the sleeve, the underwater installation of the pipeline is completed, the position deviation of the pipeline is monitored in the pulling and closing process, and correction is carried out if necessary;
the fifth step: and (3) locking and backfilling the pipeline, wherein the locked and backfilled pipeline is installed, and the pipeline is ballasted by using a pier bag 12 and a fixing belt 11, so that the pipeline is stably located on a gravel foundation 13, and the pipeline is prevented from floating and rotating. Riprap ballasting is then performed until the pipeline is stable.
Example 2
The operation of the steps of the underwater installation and construction method for the large-diameter GRP pipeline in the embodiment is the same as that in the embodiment 1, except that the length of the pipeline is 12 meters or 18 meters, and the diameter of the pipeline is 4 meters.
Example 3
The steps and operations of the underwater installation construction method for the large-diameter GRP pipeline are the same as those in the embodiment 1, except that the pipe group is constructed, the pipe group is a 24-meter pipe group consisting of 2 pipes with the length of 12 meters, and each pipe has the diameter of 4 meters.
Example 4
The steps and operations of the underwater installation construction method for the large-diameter GRP pipeline in the embodiment are the same as those in the embodiment 1, except that the pipe group is constructed, the pipe group is a 36-meter-long pipe group consisting of 2 pipes with the length of 18 meters, and each pipe has the diameter of 4 meters.
Claims (3)
1. A method for underwater installation of a large-diameter GRP pipeline is characterized by comprising the following steps: adopt special butt joint to draw and close device installation pipeline, the butt joint is drawn and is closed the device and include location staple bolt and the spacing staple bolt of mutually supporting use, location staple bolt and spacing staple bolt are installed respectively on waiting to install pipeline and sheathed tube adjacent terminal surface, the location staple bolt passes through the hoist cable with spacing staple bolt upper portion and is connected with the davit, hoisting equipment hoist and mount davit transports the pipeline to the mounted position, accomplish the primary location, then through positioning system accurate positioning, and will wait to install pipeline and sleeve pipe through setting up the draw and close the device on location staple bolt and spacing staple bolt and draw and close the fastening, accomplish the pipeline and install the construction under water, specifically include following step:
the first step is as follows: installing a butt-joint pull-joint device, installing a positioning hoop at the front end of the pipeline, and installing a limiting hoop at the end of the sleeve adjacent to the end; the rear end of the pipeline is provided with a limiting hoop, the end of the sleeve adjacent to the rear end of the pipeline is provided with a positioning hoop, the positioning hoop is provided with a positioning rod, the limiting hoop is provided with a positioning groove, and the positioning hoop and the limiting hoop are tightened by adopting a fastening belt so as to be tightly attached to the pipeline or the sleeve;
the second step is that: installing a sling, wherein two ends of a lifting bar are respectively connected with a positioning hoop and a limiting hoop which are installed on the pipeline by slings, the lifting bar is lifted by a crane, the pipeline is lifted to a specified position, so that a positioning rod can fall into a positioning groove, and the primary positioning of the pipeline is completed;
the third step: the pipeline is accurately positioned, and a positioning system on the hanging bar is adopted to guide the pipeline to adjust, so that the installation axis of the pipeline is in the range of the design important area, and the accurate positioning of the pipeline is completed;
the fourth step: the pipeline is pulled and fastened, a pulling and closing hydraulic jack is arranged between a positioning hoop and a limiting hoop on the adjacent end surfaces of the pipeline and the sleeve, and the hydraulic jack is operated to pull and close the pipeline slowly to enable the pipeline to enter the sleeve, so that the underwater installation of the pipeline is completed; monitoring the position deviation of the pipeline in the pulling-in process, and correcting if necessary;
the fifth step: the pipeline locking and backfilling, the locking and backfilling is carried out on the installed pipeline, the locking adopts a pier bag to ballast the pipeline to prevent the pipeline from floating and rotating, then the riprap ballast is carried out until the pipeline is stable,
and the positioning system in the third step comprises a scanning measurement and control device, a data processing device and a GPS positioning device, wherein the data processing device is connected with the GPS positioning device and the scanning measurement and control device through data lines.
2. A method of installing large diameter GRP pipe underwater according to claim 1, wherein: and in the second step, a plurality of hoisting eye plates are welded at the specified positions of the hoisting bar, so that the hoisting of pipelines or pipe groups with different lengths is met.
3. A method of installing large diameter GRP pipe underwater according to claim 1, wherein: 2 scanning measurement and control devices are arranged below the hanging bar, are 800mm away from the hanging bar and correspond to the sling; 1 GPS positioning device is respectively arranged at two ends above the hanging bar; and 1 data processing device is arranged in the middle above the hanging bar.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018213139923 | 2018-08-15 | ||
| CN201821313992 | 2018-08-15 |
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| Publication Number | Publication Date |
|---|---|
| CN109185558A CN109185558A (en) | 2019-01-11 |
| CN109185558B true CN109185558B (en) | 2020-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810964033.6A Active CN109185558B (en) | 2018-08-15 | 2018-08-23 | Method for underwater installation of large-diameter GRP pipeline |
| CN201821378867.0U Active CN209067993U (en) | 2018-08-15 | 2018-08-27 | Submarine pipeline docks drawing device |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821378867.0U Active CN209067993U (en) | 2018-08-15 | 2018-08-27 | Submarine pipeline docks drawing device |
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| CN (2) | CN109185558B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112682572B (en) * | 2020-12-21 | 2022-04-26 | 中交一航局第三工程有限公司 | Method for stably fixing first-section pipe joint of super-large-diameter GRP pipeline underwater |
| CN114960901A (en) * | 2022-05-19 | 2022-08-30 | 佛山市市政建设工程有限公司 | Rainwater pipeline automatic alignment installation device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2448508Y (en) * | 2000-11-14 | 2001-09-19 | 胜利石油管理局工程建设一公司三分公司 | Auxiliary aligner for welding above sea of submerged pipeline |
| CN202116175U (en) * | 2010-12-22 | 2012-01-18 | 大连港集团有限公司 | Three-hanging point hanging bar with movable lifting lug in middle |
| CN104631602A (en) * | 2014-12-31 | 2015-05-20 | 中交一航局第二工程有限公司 | Construction method of pipeline in sea area for sewage deep sea disposal engineering |
| CN206128255U (en) * | 2016-09-19 | 2017-04-26 | 中交一航局第三工程有限公司 | Underwater mating manages auxiliary device |
| CN206916625U (en) * | 2017-06-13 | 2018-01-23 | 中交一航局第三工程有限公司 | The simple hanging ladder of convertible |
-
2018
- 2018-08-23 CN CN201810964033.6A patent/CN109185558B/en active Active
- 2018-08-27 CN CN201821378867.0U patent/CN209067993U/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2448508Y (en) * | 2000-11-14 | 2001-09-19 | 胜利石油管理局工程建设一公司三分公司 | Auxiliary aligner for welding above sea of submerged pipeline |
| CN202116175U (en) * | 2010-12-22 | 2012-01-18 | 大连港集团有限公司 | Three-hanging point hanging bar with movable lifting lug in middle |
| CN104631602A (en) * | 2014-12-31 | 2015-05-20 | 中交一航局第二工程有限公司 | Construction method of pipeline in sea area for sewage deep sea disposal engineering |
| CN206128255U (en) * | 2016-09-19 | 2017-04-26 | 中交一航局第三工程有限公司 | Underwater mating manages auxiliary device |
| CN206916625U (en) * | 2017-06-13 | 2018-01-23 | 中交一航局第三工程有限公司 | The simple hanging ladder of convertible |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109185558A (en) | 2019-01-11 |
| CN209067993U (en) | 2019-07-05 |
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Inventor after: Kang Songtao Inventor after: Pan Ying Inventor after: Yu Zhilei Inventor after: Wu Nan Inventor after: Ma Bofei Inventor after: Liu Zhenshan Inventor after: Hong Lingyun Inventor after: Ma Wujie Inventor after: Sun Ruiqian Inventor after: Chen Qiang Inventor after: Chen Mingxin Inventor after: Zang Yiwen Inventor after: Liu Zichao Inventor before: Kang Songtao Inventor before: Pan Ying Inventor before: Yu Zhilei Inventor before: Wu Nan Inventor before: Liu Zhenshan Inventor before: Hong Lingyun Inventor before: Ma Wujie Inventor before: Sun Ruiqian Inventor before: Chen Qiang Inventor before: Chen Mingxin Inventor before: Zang Yiwen Inventor before: Liu Zichao |