CN111619760B - Assembling, butt-jointing and positioning method for large floating raft in natural river - Google Patents

Assembling, butt-jointing and positioning method for large floating raft in natural river Download PDF

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Publication number
CN111619760B
CN111619760B CN202010330395.7A CN202010330395A CN111619760B CN 111619760 B CN111619760 B CN 111619760B CN 202010330395 A CN202010330395 A CN 202010330395A CN 111619760 B CN111619760 B CN 111619760B
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floating
segmented
raft
floating raft
assembling
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CN111619760A (en
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朱峰峰
肖玉锋
董万龙
袁豪
贾涛
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China Construction Third Bureau Group Co Ltd
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China Construction Third Bureau Construction Engineering Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B75/00—Building or assembling floating offshore structures, e.g. semi-submersible platforms, SPAR platforms or wind turbine platforms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B77/00—Transporting or installing offshore structures on site using buoyancy forces, e.g. using semi-submersible barges, ballasting the structure or transporting of oil-and-gas platforms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C3/00—Launching or hauling-out by landborne slipways; Slipways

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Transportation (AREA)
  • Revetment (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)

Abstract

The invention discloses a method for assembling, butting and positioning a large floating raft in a natural river, which comprises the following steps: arranging a processing field on the river bank close to the floating raft installation position; assembling a segmented floating mat on a slideway steel pipe of a processing field; after finishing the processing of one subsection raft, enabling the subsection raft to slide into the water surface along the slideway and be connected with an anchor ring pre-embedded at the bank side until all the subsection rafts are processed; sequentially launching all the segmented floating rafts, and splicing and combining a plurality of the segmented floating rafts into an integral large floating raft under the traction of a barge; and completing the connection between the connecting device and the large floating raft on the water surface to complete the positioning of the large floating raft. According to the invention, the integral large-scale floating raft is finally formed by respectively processing, launching and connecting the segmented floating rafts, so that the requirement on the processing field area of the floating raft can be reduced, and the processing, launching and positioning of the floating raft can be simplified, thereby shortening the construction period.

Description

Assembling, butt-jointing and positioning method for large floating raft in natural river
Technical Field
The invention relates to a method for installing a floating raft in a river, in particular to a method for assembling, butting and positioning a large floating raft in a natural river.
Background
Along with the improvement of living standard, the application of large-scale floating raft in rivers is increasing, for example, large-scale music fountain often need be set up in river and river territory, on the one hand the water resource formation fountain of being convenient for, on the other hand has obvious building landscape on water, this kind of facility is unsuitable to be built with the concrete construction mode, generally adopt the mode of large-scale floating raft to float and fix its position near the bank on the river for the sight.
The large floating raft is a steel platform which can float on the water surface, and equipment such as a fountain and the like is arranged on the platform. Because it is difficult to process in aqueous, so traditional processing mode adopts the mode of installing again after job site bank side integrated processing, nevertheless because the size of large-scale floating raft is very big, integrated processing needs to be approximately equal to the processing place of floating raft area, so it is great to processing place area requirement, implements comparatively difficultly, and integrated processing is wasted time and energy moreover, and the time limit for a project is longer.
Disclosure of Invention
The invention aims to solve the problems and provide a method for assembling, butting and positioning large floating rafts in natural rivers, which has small requirements on processing site area and short construction period.
The invention realizes the purpose through the following technical scheme:
a method for assembling, butting and positioning a large floating raft in a natural river comprises the following steps:
step 1, finishing a processing field on a river bank close to a mounting position of a floating raft, wherein the size of the processing field is not smaller than that of a sectional floating raft, the processing field has a certain gradient and an included angle of 10-30 degrees with a horizontal plane, one side of the processing field far away from a water area is higher than one side close to the water area, a plurality of mutually parallel slideway steel pipes are laid on the processing field to serve as slideways, the slideway steel pipes are mutually vertical to the river direction or have an included angle of not more than 45 degrees, and one side of the processing field far away from the water area is provided with traction equipment;
step 2, assembling the segmented floating raft on a slideway steel pipe of a processing field, and pulling the unmachined segmented floating raft by using traction equipment in the processing process;
step 3, after finishing the processing of one subsection floating raft, loosening the traction equipment to enable the subsection floating raft to slide into the water surface along the slideway and be connected with the anchor rings pre-embedded at the bank side, and then processing the next subsection floating raft until all the subsection floating rafts are processed, slide into the water surface and are respectively correspondingly connected with the anchor rings pre-embedded at the bank side;
step 4, sequentially launching all the segmented floating drains, controlling the elevation of the segmented floating drains by a method of adjusting the self weight of the segmented floating drains by injecting water into a water sump of the segmented floating drains, splicing and combining a plurality of segmented floating drains into an integral large floating drain under the traction of a barge, then disconnecting the large floating drains from all anchor rings, and dragging and shifting the large floating drains to the vicinity of a connecting device through the barge;
and 5, pulling up the connecting device pre-buried at the river bottom through the rope tied to the floating ball, and completing the connection between the connecting device and the large-scale floating raft on the water surface to complete the positioning of the large-scale floating raft.
Preferably, in the step 1, an included angle between the processing site and a horizontal plane is 20 °.
Preferably, the traction devices in the step 1, the step 2 and the step 3 are a plurality of winches.
Preferably, in the step 4, the anchor ring is embedded in the bank through a concrete foundation, and the sequence of the launching splicing of the segmented floating raft is as follows: the segmented floating drainage of the downstream section and the segmented floating drainage of the midstream section are firstly spliced by launching, and the segmented floating drainage of the upstream section is finally spliced with the segmented floating drainage of the midstream section to finish the whole splicing process.
Preferably, in the step 4, the splicing method of the segmented floating mat is as follows: keeping the segmented floating row of the downstream section or the intermediate section still, enabling the segmented floating row of the intermediate section or the upstream section to be close to the segmented floating row of the downstream section or the intermediate section under the action of water flow and the action of barge traction force, filling water into a self-contained water bin of the segmented floating row to change the self weight of the segmented floating row when the distance between the two segmented floating rows is 2-3 meters, adjusting the height difference of the butt joint of the segmented floating rows, if the height difference exceeds the adjusting range, adjusting by adopting a stacking mode on the higher segmented floating row, and completing connection after the height is adjusted.
Preferably, the stowage uses sandbags pre-installed on the barge in advance.
Preferably, in the step 4, the segmented raft is pulled by a barge to approach each other, and then corresponding flanges are connected by bolts, the flanges are installed at the edge joints of the segmented raft, the upper limit of the pulling acceleration of the barge is the maximum acceleration which does not damage the steel structure of the segmented raft, and the barges are arranged in a non-collinear manner.
The invention has the beneficial effects that:
according to the invention, the integral large-scale floating raft is finally formed by respectively processing, launching and connecting the segmented floating rafts, so that the requirement on the processing field area of the floating raft can be reduced, and the processing, launching and positioning of the floating raft can be simplified, thereby shortening the construction period; by arranging the slide way and the traction equipment on the processing site, embedding the anchor ring on the bank side, and placing the barge in a river, the assembly, launching, butt joint and positioning of the segmented floating raft can be completed quickly, efficiently and safely.
Drawings
FIG. 1 is a schematic sectional structure view of a processing field related to the assembling, butt-jointing and positioning method of a large floating raft in a natural river according to the invention;
FIG. 2 is a schematic view of the top view effect of the processing field related to the assembling, butt-jointing and positioning method of the large floating raft in the natural river according to the present invention;
FIG. 3 is a schematic structural diagram of an anchor ring involved in the assembling, butt-jointing and positioning method of the large floating raft in the natural river according to the present invention;
FIG. 4 is a schematic view of the top view effect of two sectional floating drains related to the method for assembling, butting and positioning the large floating drains in the natural river after the two sectional floating drains are drained;
FIG. 5 is a schematic view of the top view effect of the assembly, butt joint and positioning method of the large floating raft in the natural river in the process of butt joint of two segmental floating rafts after being discharged;
fig. 6 is a schematic view of the top view effect of two sectional floating drains after being discharged and butted, which relates to the assembling, butting and positioning method of the large floating drains in the natural river.
Detailed Description
The invention will be further described with reference to the accompanying drawings in which:
as shown in fig. 1-6, the assembling, butt-jointing and positioning method for the large floating raft in the natural river comprises the following steps:
step 1, as shown in fig. 1 and 2, finishing a processing field 2 on a river bank close to a mounting position of a floating raft, wherein the size of the processing field 2 is not smaller than that of a sectional floating raft 6, the processing field 2 has a certain gradient, and an included angle between the processing field 2 and a horizontal plane is 10-30 degrees, preferably 20 degrees, one side, far away from the water area, of the processing field 2 is higher than one side, close to the water area, of the processing field 2, the side, close to the water area, of the processing field 2 is close to a river water surface line 1, a plurality of mutually parallel slideway steel pipes 3 are laid on the processing field 2 to serve as slideways, the slideway steel pipes are mutually vertical to the river direction or have an included angle not larger than 45 degrees, a traction device 4 is mounted on one side, far away from the water area, of the processing field 2, and the traction device 4 is preferably a plurality of winches;
step 2, assembling the segmented floating raft 6 on the slideway steel pipe 3 of the processing field 2, and pulling the unmachined segmented floating raft 6 by using a traction device 4 in the processing process;
step 3, as shown in fig. 1-4, after the processing of one segmented raft 6 is completed, slowly loosening the traction equipment 4 to enable the segmented raft 6 to slide into the water surface along a slideway and be connected with anchor rings 5 pre-embedded at the bank 7, wherein the anchor rings 5 are pre-embedded in the bank 7 through a concrete foundation, and then processing the next segmented raft 6 until all the segmented rafts 6 are processed, slide into the water surface and are respectively correspondingly connected with the anchor rings 5 pre-embedded at the bank 7;
step 4, as shown in fig. 4-6, sequentially launching all the segmented floating rafts 6, controlling the elevation of the segmented floating raft 6 by a method of adjusting the self weight of the segmented floating raft 6 by injecting water into a water sump of the segmented floating raft 6, splicing and combining a plurality of the segmented floating rafts 6 into an integral large floating raft 10 under the traction of a barge 8, then disconnecting the large floating raft 10 from all the anchor rings 5, and dragging and shifting the large floating raft 10 to the vicinity of the connecting device through the barge 8;
in this step, the sequence of the split joint of the segment floating raft 6 is as follows: the segmented floating raft 6 of the downstream section and the segmented floating raft 6 of the midstream section are firstly launched to finish splicing, and the segmented floating raft 6 of the upstream section is finally launched to be spliced with the segmented floating raft 6 of the midstream section to finish the whole splicing process; the splicing method of the segmented floating row 6 comprises the following steps: keeping the segmented floating raft 6 of the downstream section or the intermediate section still, filling water into a self-contained water bin of the segmented floating raft 6 to change the self weight of the segmented floating raft 6 when the segmented floating raft 6 of the intermediate section or the upstream section is close to the segmented floating raft 6 of the downstream section or the intermediate section under the action of water flow and the traction force of a barge 8, adjusting the height difference of the butt joint of the segmented floating rafts 6, if the height difference exceeds the adjusting range, adjusting by adopting a stacking mode on the higher segmented floating raft 6, wherein the stacking adopts sand bags pre-installed on the barge 8 in advance, and connecting corresponding flange plates by using bolts after the height is adjusted, and the flange plates are installed at the edge connecting positions of the segmented floating rafts 6, thus completing the connection between the segmented floating rafts 6; in the process, the upper limit of the traction acceleration of the barges 8 is the maximum acceleration which does not damage the steel structure of the segmented raft 6, and the barges 8 are arranged in a non-collinear mode;
and 5, pulling up the connecting device pre-buried at the river bottom through a rope tied to the floating ball 9, completing the connection between the connecting device and the large floating raft 10 on the water surface, and completing the positioning of the large floating raft 10.
According to the method, the area requirement on the floating raft processing field 2 can be reduced, and the processing, launching and positioning of the floating raft can be simplified, so that the construction period is shortened; by arranging the slide way and the traction equipment 4 on the processing site 2, embedding the anchor ring 5 on the bank 7 and placing the barge 8 in a river, the assembly, the launching, the butt joint and the positioning of the sectional floating raft 6 can be quickly, efficiently and safely finished, and finally the quick installation of the large floating raft 10 is finished.
The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the technical solutions of the present invention, so long as the technical solutions can be realized on the basis of the above embodiments without creative efforts, which should be considered to fall within the protection scope of the patent of the present invention.

Claims (7)

1. A method for assembling, butting and positioning a large floating raft in a natural river is characterized in that: the method comprises the following steps:
step 1, finishing a processing field on a river bank close to a mounting position of a floating raft, wherein the size of the processing field is not smaller than that of a sectional floating raft, the processing field has a certain gradient and an included angle of 10-30 degrees with a horizontal plane, one side of the processing field far away from a water area is higher than one side close to the water area, a plurality of mutually parallel slideway steel pipes are laid on the processing field to serve as slideways, the slideway steel pipes are mutually vertical to the river direction or have an included angle of not more than 45 degrees, and one side of the processing field far away from the water area is provided with traction equipment;
step 2, assembling the segmented floating raft on a slideway steel pipe of a processing field, and pulling the unmachined segmented floating raft by using traction equipment in the processing process;
step 3, after finishing the processing of one subsection floating raft, loosening the traction equipment to enable the subsection floating raft to slide into the water surface along the slideway and be connected with the anchor rings pre-embedded at the bank side, and then processing the next subsection floating raft until all the subsection floating rafts are processed, slide into the water surface and are respectively correspondingly connected with the anchor rings pre-embedded at the bank side;
step 4, sequentially launching all the segmented floating drains, controlling the elevation of the segmented floating drains by a method of adjusting the self weight of the segmented floating drains by injecting water into a water sump of the segmented floating drains, splicing and combining a plurality of segmented floating drains into an integral large floating drain under the traction of a barge, then disconnecting the large floating drains from all anchor rings, and dragging and shifting the large floating drains to the vicinity of a connecting device through the barge;
and 5, pulling up the connecting device pre-buried at the river bottom through the rope tied to the floating ball, and completing the connection between the connecting device and the large-scale floating raft on the water surface to complete the positioning of the large-scale floating raft.
2. The assembling, butt-jointing and positioning method of the large floating raft in the natural river according to claim 1, characterized in that: in the step 1, an included angle between the processing field and a horizontal plane is 20 degrees.
3. The assembling, butt-jointing and positioning method for large floating raft in natural river according to claim 1 or 2, characterized in that: the traction equipment in the steps 1, 2 and 3 is a plurality of winches.
4. The assembling, butt-jointing and positioning method of the large floating raft in the natural river according to claim 1, characterized in that: in the step 4, the anchor ring is pre-embedded on the bank side through a concrete foundation, and the sequence of the launching splicing of the segmented floating raft is as follows: the segmented floating drainage of the downstream section and the segmented floating drainage of the midstream section are firstly spliced by launching, and the segmented floating drainage of the upstream section is finally spliced with the segmented floating drainage of the midstream section to finish the whole splicing process.
5. The assembling, butt-jointing and positioning method of the large floating raft in the natural river according to claim 4, characterized in that: in the step 4, the splicing method of the segmented floating mat comprises the following steps: keeping the segmented floating row of the downstream section or the intermediate section still, enabling the segmented floating row of the intermediate section or the upstream section to be close to the segmented floating row of the downstream section or the intermediate section under the action of water flow and the action of barge traction force, filling water into a self-contained water bin of the segmented floating row to change the self weight of the segmented floating row when the distance between the two segmented floating rows is 2-3 meters, adjusting the height difference of the butt joint of the segmented floating rows, if the height difference exceeds the adjusting range, adjusting by adopting a stacking mode on the higher segmented floating row, and completing connection after the height is adjusted.
6. The assembling, butt-jointing and positioning method of the large floating raft in the natural river according to claim 5, characterized in that: the heaping adopts sandbags preassembled on the barge in advance.
7. The method for assembling, butting and positioning large floating raft in natural river according to claim 1, 4, 5 or 6, wherein: in the step 4, the segmented floating raft is mutually close under the traction of a barge, corresponding flange plates are connected by bolts, the flange plates are arranged at the edge connection positions of the segmented floating raft, the upper limit of the traction acceleration of the barge is the maximum acceleration which does not damage the steel structure of the segmented floating raft, and a plurality of barges are arranged in a non-collinear mode.
CN202010330395.7A 2020-04-24 2020-04-24 Assembling, butt-jointing and positioning method for large floating raft in natural river Active CN111619760B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1789076A (en) * 2004-12-13 2006-06-21 Stx造船株式会社 Method for building ship on ground and launching ship using skid launching system
CN201030346Y (en) * 2007-04-12 2008-03-05 北京东方光大安装工程集团有限公司 Hoist lifting type flexible floating raft
CN108033283A (en) * 2017-11-01 2018-05-15 中交四航局第二工程有限公司 A kind of great diameter and long HDPE pipelines it is land go out transportation method
CN109736336A (en) * 2019-01-29 2019-05-10 中交第三航务工程局有限公司 A kind of mounting process of the steel jacket box for pier cap construction
CN110747752A (en) * 2019-10-31 2020-02-04 上海东鼎钢结构有限公司 Floating-dragging method installation process for large-span steel structure arch bridge

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1789076A (en) * 2004-12-13 2006-06-21 Stx造船株式会社 Method for building ship on ground and launching ship using skid launching system
CN201030346Y (en) * 2007-04-12 2008-03-05 北京东方光大安装工程集团有限公司 Hoist lifting type flexible floating raft
CN108033283A (en) * 2017-11-01 2018-05-15 中交四航局第二工程有限公司 A kind of great diameter and long HDPE pipelines it is land go out transportation method
CN109736336A (en) * 2019-01-29 2019-05-10 中交第三航务工程局有限公司 A kind of mounting process of the steel jacket box for pier cap construction
CN110747752A (en) * 2019-10-31 2020-02-04 上海东鼎钢结构有限公司 Floating-dragging method installation process for large-span steel structure arch bridge

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