CN105952967A - Pipe immersing operation method for immersing pipe by using floating balls - Google Patents
Pipe immersing operation method for immersing pipe by using floating balls Download PDFInfo
- Publication number
- CN105952967A CN105952967A CN201610387107.5A CN201610387107A CN105952967A CN 105952967 A CN105952967 A CN 105952967A CN 201610387107 A CN201610387107 A CN 201610387107A CN 105952967 A CN105952967 A CN 105952967A
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- Prior art keywords
- pipe
- pipeline
- suspension centre
- rope
- hanging point
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Classifications
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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
- F16L1/163—Laying or reclaiming pipes on or under water on the bottom by varying the apparent weight of the pipe during the laying operation
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/40—Protecting water resources
- Y02A20/402—River restoration
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Barrages (AREA)
- Mechanical Engineering (AREA)
- Underground Or Underwater Handling Of Building Materials (AREA)
Abstract
The invention discloses a pipe immersing operation method for immersing a pipe by using floating balls. The method comprises steps as follows: 1) the multiple floating balls are evenly tied on the pipe; 2) the pipe is transported into a river channel from a welding platform; 3) two ends of the pipe are connected with hanging point ropes of derrick masts on both sides; 4) multiple positioning hanging point boats are evenly arranged on one side of the pipe and are connected onto the pipe by the aid of hanging point ropes; 5) water is injected into the pipe, and meanwhile, the floating balls are symmetrically deflated, so that the pipe is immersed in a preset groove at the river bottom; 6) the pipe is disconnected from the hanging point rope of the derrick mast on the left side, the hanging point rope of the derrick mast on the right side and the hanging point ropes of all the positioning hanging point boats, the preset groove is back filled with fine sand and stone chip cushions, and the river channel is restored. In the process of water injection and immersion of the pipe, the floating balls can be deflated manually at any time until the pipe is immersed in place according to the immersion depth progress and the water injection condition of the pipe, so that the deflection, the bending stress, the shear stress and the immersing speed of all parts of the pipe are controlled actively.
Description
Technical field
The present invention relates to a kind of engineer operation and transport field, a kind of utilize the heavy of ball float sinking pipeline
Pipe operational method.
Background technology
For longer large-scale metallic conduit, owing to being limited by relatively large deflection, bending stress, it is difficulty with
Its immersed tube operation.Unless portion utilizes some lifting hoist engines auxiliary to hang in the duct, immersed tube work can be carried out
Industry.But, this kind of immersed tube sinking construction method has the disadvantage in that the equal control difficulty of (1) lifting force
Greatly；(2) locally shear stress is big etc., and problem annoyings safe construction always；(3) lifting ship configures hoist engine
Pulling force interacts, sinking poor stability；(4) construction link is complicated, investment height.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of immersed tube operational method utilizing ball float sinking pipeline,
To realize safety and stability immersed tube, save construction investment.
In order to solve above-mentioned technical problem, the present invention comprises the following steps:
1) multiple ball floats are uniformly bundled on pipeline；
2) pipeline and ball float are transported in river course from jig；
3) pipeline one end is delivered in the groove of left bank, and be connected to pipe end, so with left bank gin pole suspension centre rope
After with left bank end as center of rotation, make the pipeline other end slowly make an arc to right bank, enter the pipeline other end behind position
Connect with right bank gin pole suspension centre rope；
4) multiple location suspension centre ship is evenly arranged in pipeline side, and the suspension centre rope of location suspension centre ship is connected
On pipeline；
5) multiple ball floats are carried out symmetrical bleed air operation so that pipeline can be steady by water filling in pipeline simultaneously
Ground sinking is in the pre-groove of river bed；
6) pipeline and left bank gin pole suspension centre rope, right bank gin pole suspension centre rope and each location suspension centre ship suspension centre are disconnected
The connection of rope, backfills pre-groove with fine sand and aggregate chips bed course and recovers river course.
The invention has the beneficial effects as follows: during pipeline water filling sinking, when the transverse tube entirety of pipeline enters water
Under, according to submergence depth process and pipeline water filling situation, can manually ball float be exitted at any time, until heavy
It is put into position.Thus realize actively controlling the amount of deflection at each position of pipeline, bending gravitation, shear stress and sinking speed
Degree.This scheme can to a certain degree replace vertical suspension centre ship, the most only need to position suspension centre ship and assist.
Accompanying drawing explanation
Fig. 1 is the structural representation that in the present invention, pipeline carries out sinking operation；
Fig. 2 is the structural representation that in the present invention, ball float is bundled on pipeline.
Detailed description of the invention
The present invention is further detailed explanation with detailed description of the invention below in conjunction with the accompanying drawings:
Seeing Fig. 1 and Fig. 2, a kind of immersed tube operational method utilizing ball float sinking pipeline of the present invention includes following
Step:
1) multiple ball floats 1 are uniformly bundled on pipeline 2；
2) pipeline 2 and ball float 1 are transported in river course from jig；
3) pipeline 2 one end is delivered in the groove of left bank, and is connected to pipe end with left bank gin pole 3 suspension centre rope,
Then with left bank end as center of rotation, make the pipeline other end slowly make an arc to right bank, enter behind position by pipeline another
End and right bank gin pole 4 suspension centre rope connect；
4) multiple location suspension centre ship 5 is evenly arranged in pipeline 2 side, and by the suspension centre of location suspension centre ship 5
Rope is connected on pipeline 2；
5) multiple ball floats 1 are carried out symmetrical bleed air operation so that pipeline 2 energy by water filling in pipeline 2 simultaneously
Enough the most smoothly sinkings are in the pre-groove of river bed；
6) pipeline 2 and left bank gin pole 3 suspension centre rope, right bank gin pole 4 suspension centre rope and each location suspension centre are disconnected
The connection of ship 5 suspension centre rope, backfills pre-groove with fine sand and aggregate chips bed course and recovers river course.
Pass through the sinking construction in river course for longer (generally higher than 50 meters) metallic conduit immersed tube, use ball float
The mode of binding fastening pipeline, assists sinking operation.Pipeline relies primarily on two sides, two ends gin pole and is equipped with hoist engine
Lifting sinking, middle part arranges that some ball floats coordinate.Ball float is formulated according to pipeline force analysis, amount of deflection analysis etc.
Allocation plan, to guarantee the pipe safety during sinking.The configuration of ball float mainly include ball float volume,
Quantity and position.
Embodiment
As a example by DN1000 prefabricated thermal insulation steel pipe immersed tube passes through 165 meters of wide river courses, pipeline integral solder completes,
Suppressing after meeting design requirement, according to force analysis result, in water, after 95m steel pipe water-filling, gravity is
121.6KN, selects DN1000*2000 rubber ball float, and wherein ball float is by natural rubber, polyamide fibre gum dipped curtain cloth
Making, its design pressure meets the pressure intensity of 20 meters under water.Every pipeline 5 ball floats of configuration, at pipeline
Cross tube sections fills 1 ball float every 15 meter amperes, and ball float uses special restraint zone to be arranged on above pipeline, its
Middle restraint zone is braiding bandage.According to this scheme, gross buoyancy relies on up to 77KN, the gravity of residue 44.6KN
The gin pole suspension centre at two ends and the location suspension centre ship at middle part undertake, in order to pipeline is the most in place at horizontal level.So
Afterwards according to duct length, every 30 meters of excavators are firm by pipeline colligation with soft suspender belt, and pipeline is flat from welding
Platform is transported in river course.Water-borne transport uses 160 horsepowers of tugboats and 80 horsepowers of sizing machines gradually to be sent pipeline one end
In the groove of left bank, and connect pipe end with left bank gin pole suspension centre rope, then with left bank end as center of rotation,
Make the pipeline other end slowly make an arc to right bank, after entering position, the pipeline other end and right bank gin pole suspension centre rope are connected.
The main gin pole in two sides all usesSeamless steel pipe, 10m length, often set gin pole be equipped with 2 set 5T slow-speeds
Hoist engine (wherein one standby), 25mm steel wire rope returns 4 × 4 assembly pulleys, and assembly pulley is connected with steel pipe.Two
The close 12m long 40B steel H pile of beating of vertical setting of types under bank gin pole, Underwater Welding forms truss basis.Two sides gin pole is adopted
Stabilizing it with 8 cable wind ropes, on ground, earth anchor uses pre-buried method, uses method of casting anchor in river course.
After pipe level picture arc is in place, each location suspension centre ship is in place at piping side (i.e. convex side),
And it is fixing to cast anchor, one location suspension centre ship is set along the every 30m of cross river pipeline.Location, every, korneforos suspension centre ship
Upper layout is a set of8m long seamless steel pipe A-frame, 1 5T slow-speed hoist engine, use 18.5
Mm steel wire rope returns 4 × 4 assembly pulleys, and location suspension centre ship uses 120T iron barge ship.
After location suspension centre ship is in place, starting water filling in pipeline (can be to carry out at pipeline either side during water filling
Water filling, it is possible to the water filling simultaneously in pipeline both sides), if everything goes well with your work in water filling, sinking process is controlled, treats that pipeline sinks
Put in place after, rubber ball float is carried out symmetrical bleed air operation, until pipeline can smoothly sinking to river bed
In pre-groove, it is then turned off each suspension centre rope and the connection of pipeline, backfills river bed with fine sand and aggregate chips bed course
Pre-groove and recover river course.If water filling is slow, or runs into accident current, sinking process need to be accelerated, then
At any time rubber ball float can be carried out bleed air operation.It is and to be symmetrical arranged near two sides by diver during ball float venting
Two ball floats start, as a example by 5 ball floats in the present embodiment, it is right first to be carried out by the two of both sides ball floats
Claim bleed air operation, more symmetrically arranged for another two ball float is carried out symmetrical venting, finally will be located in the one of middle part
Individual ball float carries out bleed air operation；Can reserve air vent on ball float, during venting, diver can open air vent
Directly exitting ball float, such ball float can be cut off restraint zone after venting completes and reclaim, if
Do not reserve air vent on ball float, then ball float can be scratched venting, ball float not recycling with cutter by diver.
In sum, present disclosure is not limited in the above embodiments, those skilled in the art
Other embodiment can be proposed within technological guidance's thought of the present invention, but these embodiments are included in
Within the scope of the present invention.
Claims (1)
1. the immersed tube operational method utilizing ball float sinking pipeline, it is characterised in that comprise the following steps:
1) multiple ball floats are uniformly bundled on pipeline；
2) pipeline and ball float are transported in river course from jig；
3) pipeline one end is delivered in the groove of left bank, and be connected to pipe end, so with left bank gin pole suspension centre rope
After with left bank end as center of rotation, make the pipeline other end slowly make an arc to right bank, enter the pipeline other end behind position
Connect with right bank gin pole suspension centre rope；
4) multiple location suspension centre ship is evenly arranged in pipeline side, and the suspension centre rope of location suspension centre ship is connected
On pipeline；
5) multiple ball floats are carried out symmetrical bleed air operation so that pipeline can be steady by water filling in pipeline simultaneously
Ground sinking is in the pre-groove of river bed；
6) pipeline and left bank gin pole suspension centre rope, right bank gin pole suspension centre rope and each location suspension centre ship suspension centre are disconnected
The connection of rope, backfills pre-groove with fine sand and aggregate chips bed course and recovers river course.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610387107.5A CN105952967B (en) | 2016-06-01 | 2016-06-01 | A kind of immersed tube operational method using floating ball sinking pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610387107.5A CN105952967B (en) | 2016-06-01 | 2016-06-01 | A kind of immersed tube operational method using floating ball sinking pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105952967A true CN105952967A (en) | 2016-09-21 |
| CN105952967B CN105952967B (en) | 2018-09-14 |
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| CN201610387107.5A Active CN105952967B (en) | 2016-06-01 | 2016-06-01 | A kind of immersed tube operational method using floating ball sinking pipeline |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015737A (en) * | 2016-06-14 | 2016-10-12 | 中国葛洲坝集团第工程有限公司 | Construction method for integral installation of river-crossing sinking pipe |
| CN107166092A (en) * | 2017-06-23 | 2017-09-15 | 中交四航局第二工程有限公司 | A kind of pipeline underwater mating method |
| CN113235657A (en) * | 2021-04-30 | 2021-08-10 | 四川水建建设工程有限公司 | Heavy-caliber immersed tube assembly and immersed tube method |
| CN113863378A (en) * | 2021-09-30 | 2021-12-31 | 傅家山 | Submarine tunnel construction method and tunnel immersed tube connecting structure |
| CN114923032A (en) * | 2022-04-08 | 2022-08-19 | 淮安市水利勘测设计研究院有限公司 | Construction method for integral installation of large-diameter long-distance river-crossing pipeline |
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| CN1079279A (en) * | 1993-03-05 | 1993-12-08 | 浙江海港养护大队 | Light float reaches application in engineering under water |
| EP1022501A1 (en) * | 1999-01-21 | 2000-07-26 | J.Ray McDermott, S.A. | Marine pipeline installation method and apparatus |
| CN101761691A (en) * | 2009-09-30 | 2010-06-30 | 天津市海王星海上工程技术有限公司 | Bound floating pipeline towing pipe method process |
| CN202733172U (en) * | 2012-08-29 | 2013-02-13 | 金中天集团建设有限公司 | Integral hoisting and immersed tube construction device for large-diameter ultra-long steel tube |
| CN103822019A (en) * | 2014-03-11 | 2014-05-28 | 东北石油大学 | Suspension-in-water conveying pipeline and construction method thereof |
| CN103912722A (en) * | 2014-04-23 | 2014-07-09 | 中国化学工程第三建设有限公司 | Sunken pipe assembling method for making pipeline pass through river |
| CN104633273A (en) * | 2014-12-29 | 2015-05-20 | 中国海洋石油总公司 | Rotating restraining device used for submarine pipeline laying process |
| CN105042183A (en) * | 2015-07-08 | 2015-11-11 | 中国十七冶集团有限公司 | Method for installing super-long pipeline crossing river |
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2016
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1079279A (en) * | 1993-03-05 | 1993-12-08 | 浙江海港养护大队 | Light float reaches application in engineering under water |
| EP1022501A1 (en) * | 1999-01-21 | 2000-07-26 | J.Ray McDermott, S.A. | Marine pipeline installation method and apparatus |
| CN101761691A (en) * | 2009-09-30 | 2010-06-30 | 天津市海王星海上工程技术有限公司 | Bound floating pipeline towing pipe method process |
| CN202733172U (en) * | 2012-08-29 | 2013-02-13 | 金中天集团建设有限公司 | Integral hoisting and immersed tube construction device for large-diameter ultra-long steel tube |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015737A (en) * | 2016-06-14 | 2016-10-12 | 中国葛洲坝集团第工程有限公司 | Construction method for integral installation of river-crossing sinking pipe |
| CN106015737B (en) * | 2016-06-14 | 2018-03-23 | 中国葛洲坝集团第一工程有限公司 | The construction method of cross a river immersed tube integral installation |
| CN107166092A (en) * | 2017-06-23 | 2017-09-15 | 中交四航局第二工程有限公司 | A kind of pipeline underwater mating method |
| CN113235657A (en) * | 2021-04-30 | 2021-08-10 | 四川水建建设工程有限公司 | Heavy-caliber immersed tube assembly and immersed tube method |
| CN113863378A (en) * | 2021-09-30 | 2021-12-31 | 傅家山 | Submarine tunnel construction method and tunnel immersed tube connecting structure |
| CN114923032A (en) * | 2022-04-08 | 2022-08-19 | 淮安市水利勘测设计研究院有限公司 | Construction method for integral installation of large-diameter long-distance river-crossing pipeline |
| CN114923032B (en) * | 2022-04-08 | 2024-06-14 | 淮安市水利勘测设计研究院有限公司 | Construction method for integrally installing large-diameter long-distance river-crossing pipeline |
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| Publication number | Publication date |
|---|---|
| CN105952967B (en) | 2018-09-14 |
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