CN105952967B - A kind of immersed tube operational method using floating ball sinking pipeline - Google Patents
A kind of immersed tube operational method using floating ball sinking pipeline Download PDFInfo
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- CN105952967B CN105952967B CN201610387107.5A CN201610387107A CN105952967B CN 105952967 B CN105952967 B CN 105952967B CN 201610387107 A CN201610387107 A CN 201610387107A CN 105952967 B CN105952967 B CN 105952967B
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- pipeline
- suspension centre
- sinking
- floating ball
- rope
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Underground Or Underwater Handling Of Building Materials (AREA)
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Abstract
The invention discloses a kind of immersed tube operational methods using floating ball sinking pipeline comprising following steps：1) multiple floating balls are uniformly bundled on pipeline；2) pipeline is transported from jig into river；3) pipe ends are connect with two sides gin pole suspension centre rope；4) multiple positioning suspension centre ships are evenly arranged in pipeline side, suspension centre rope is used in combination to be connected on pipeline；5) water filling into pipeline, while symmetrical bleed air operation is carried out to floating ball, make in pipeline sinking to the pre-groove of river bed；6) connection for disconnecting pipeline and left bank gin pole suspension centre rope, right bank gin pole suspension centre rope and each positioning suspension centre ship suspension centre rope with fine sand and aggregate chips bed course backfill pre-groove and restores river.It during pipeline water filling sinking, according to submergence depth process and pipeline water filling situation, can manually deflate at any time to floating ball, until sinking is in place, to realize amount of deflection, bending gravitation, shear stress and the sinking speed at each position of active control pipeline.
Description
Technical field
The present invention relates to a kind of engineer operation and transport field, especially a kind of immersed tube operation using floating ball sinking pipeline
Method.
Background technology
Is difficult to realize by its immersed tube and is made due to being limited by compared with large deflection, bending stress for longer large-scale metallic conduit
Industry.Unless portion is hung using several lifting hoist engines auxiliary in the duct, immersed tube operation can be carried out.However, such immersed tube is heavy
Construction method is put to have the following disadvantages：(1) the equal control difficulty of lifting force is big；(2) the problems such as local shear stress is big is stranded always
Disturb safe construction；(3) pulling force of lifting ship configuration hoist engine interacts, and sinking stability is poor；(4) construction link is complicated,
Investment is high.
Invention content
The technical problem to be solved in the present invention is to provide a kind of immersed tube operational methods using floating ball sinking pipeline, to realize
Safety and stability immersed tube saves construction investment.
In order to solve the above-mentioned technical problem, the present invention includes the following steps：
1) multiple floating balls are uniformly bundled on pipeline；
2) pipeline and floating ball are transported from jig into river；
3) pipeline one end is sent in the groove of left bank, is used in combination left bank gin pole suspension centre rope to be connected to pipe end, then with a left side
Bank end is center of rotation, and the pipeline other end is made slowly to make an arc to right bank, is entered the pipeline other end and right bank gin pole suspension centre rope behind position
Connection；
4) multiple positioning suspension centre ships are evenly arranged in pipeline side, and the suspension centre rope for positioning suspension centre ship is connected to pipeline
On；
5) water filling into pipeline, while symmetrical bleed air operation is carried out to multiple floating balls so that pipeline being capable of smoothly sinking
To the pre-groove of river bed；
6) company of pipeline and left bank gin pole suspension centre rope, right bank gin pole suspension centre rope and each positioning suspension centre ship suspension centre rope is disconnected
It connects, with fine sand and aggregate chips bed course backfill pre-groove and restores river.
The beneficial effects of the invention are as follows：During pipeline water filling sinking, when the transverse tube of pipeline integrally enters underwater, foundation
Submergence depth process and pipeline water filling situation, can at any time manually deflate to floating ball, until sinking is in place.To realize actively
Amount of deflection, bending gravitation, shear stress and the sinking speed at each position of control pipeline.This scheme can replace vertical suspension centre to a certain degree
Ship, or even need to only position suspension centre ship auxiliary.
Description of the drawings
Fig. 1 is the structural schematic diagram that pipeline carries out sinking operation in the present invention；
Fig. 2 is that floating ball is bundled in the structural schematic diagram on pipeline in the present invention.
Specific implementation mode
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments：
Referring to Fig. 1 and Fig. 2, a kind of immersed tube operational method using floating ball sinking pipeline of the invention includes the following steps：
1) multiple floating balls 1 are uniformly bundled on pipeline 2；
2) pipeline 2 and floating ball 1 are transported from jig into river；
3) 2 one end of pipeline is sent in the groove of left bank, gin pole 3 suspension centre rope in left bank is used in combination to be connected to pipe end, then with
Left bank end is center of rotation, and the pipeline other end is made slowly to make an arc to right bank, is entered 4 suspension centre of the pipeline other end and right bank gin pole behind position
Rope connection；
4) multiple positioning suspension centre ships 5 are evenly arranged in 2 side of pipeline, and the suspension centre rope for positioning suspension centre ship 5 is connected to
On pipeline 2；
5) water filling into pipeline 2, while symmetrical bleed air operation is carried out to multiple floating balls 1 so that pipeline 2 can smoothly sink
It puts to the pre-groove of river bed；
6) pipeline 2 and 3 suspension centre rope of left bank gin pole, 4 suspension centre rope of right bank gin pole and each 5 suspension centre rope of positioning suspension centre ship are disconnected
Connection, pre-groove and restore river with fine sand and the backfill of aggregate chips bed course.
The sinking construction that river is passed through for longer (generally higher than 50 meters) metallic conduit immersed tube, is bundled using floating ball and is fastened
The mode of pipeline assists sinking operation.Pipeline relies primarily on both ends two sides gin pole and is equipped with hoist engine lifting sinking, if middle part is arranged
Dry floating ball cooperation.The allocation plan that floating ball is formulated according to pipeline force analysis, amount of deflection analysis etc., to ensure the pipe during sinking
Road safety.The configuration of floating ball mainly includes volume, quantity and the position of floating ball.
Embodiment
By taking DN1000 prefabricated thermal insulation steel pipe immersed tube passes through 165 meters of wide river courses as an example, pipeline integral solder is completed, and satisfaction is suppressed
After design requirement, according to force analysis as a result, gravity is 121.6KN after 95m steel pipes water-filling in water, DN1000*2000 is selected
Rubber floating ball, wherein floating ball are made of natural rubber, polyamide fibre gum dipped curtain cloth, and it is strong that design pressure meets underwater 20 meters of pressure
Degree.Every pipeline configures 5 floating balls, fills 1 floating ball every 15 meter amperes in pipeline cross tube sections, floating ball uses dedicated restraint zone
Above pipeline, wherein restraint zone is braiding bandage.According to this scheme, gross buoyancy is up to 77KN, the weight of remaining 44.6KN
Power undertakes by the gin pole suspension centre at both ends and the positioning suspension centre ship at middle part, so that pipeline is smoothly in place in horizontal position.Then root
According to duct length, every 30 meters of excavators are bound pipeline securely with soft suspender belt, and pipeline is transported to from jig in river.Water
Pipeline one end is gradually sent in the groove of left bank by road transport using 160 horsepowers of tugboats and 80 horsepowers of sizing machines, and left bank gin pole is used in combination
Suspension centre rope connecting pipe end makes the pipeline other end slowly make an arc to right bank then using left bank end as center of rotation, is incited somebody to action after entering position
The pipeline other end is connected with right bank gin pole suspension centre rope.The main gin pole in two sides is all made ofSeamless steel pipe, 10m long,
Often set gin pole is equipped with 2 sets of 5T slow-speeds hoist engines (wherein one spare), and 25mm steel wire ropes return 4 × 4 pulley blocks, pulley blocks and steel pipe
It is connected.Vertical setting of types is close under the gin pole of two sides beats 12m long 40B steel H piles, and Underwater Welding forms truss basis.Two sides gin pole uses 8
Cable wind rope makes its stabilization, and earth anchor uses pre-buried method on ground, in river use cast anchor method.
Pipe level draw arc it is in place after, each positioning suspension centre ship piping side (i.e. convex side) in place, and cast anchor
It is fixed, a positioning suspension centre ship is set along cross river pipeline per 30m.It is arranged on the positioning suspension centre ship of korneforos every a set of8m long seamless steel pipe A-frames, 1 5T slow-speed hoist engine, 4 × 4 pulley blocks are returned using 18.5mm steel wire ropes,
It positions suspension centre ship and uses 120T iron barge ships.
Position suspension centre ship it is in place after, start to water filling in pipeline (can be when water filling pipeline either side carry out water filling,
Can be in the water filling simultaneously of pipeline both sides), if everything goes well with your work for water filling, sinking process is controllable, after pipeline sinking is in place, to rubber floating ball
Symmetrical bleed air operation is carried out, until pipeline smoothly in sinking to the pre-groove of river bed, can be then turned off each suspension centre rope
With the connection of pipeline, backfills the pre-groove of river bed with fine sand and aggregate chips bed course and restore river.If water filling is slow, or encounters not
Flow is surveyed, sinking process need to be accelerated, then can bleed air operation be carried out to rubber floating ball at any time.Floating ball is close by diver when deflating
Two sides and symmetrically arranged two floating balls start first carry out two floating balls of both sides by taking 5 floating balls in the present embodiment as an example
Symmetrical bleed air operation, then the symmetrically arranged floating ball of another two is symmetrically deflated, finally by positioned at middle part floating ball into
Row bleed air operation；It can reserve air vent on floating ball, diver can open air vent and directly deflate to floating ball when deflation,
Floating ball can cut restraint zone after the completion of deflating and be recycled in this way, if without reserved air vent on floating ball, then diver
Floating ball can be scratched into deflation with knife, floating ball not recycling.
In conclusion present disclosure is not limited in the above embodiments, those skilled in the art can be
It is proposed other embodiments within the technological guidance's thought of the present invention, but these embodiments be included in the scope of the present invention it
It is interior.
Claims (1)
1. a kind of immersed tube operational method using floating ball sinking pipeline, which is characterized in that include the following steps：
1) multiple floating balls are uniformly bundled on pipeline；
2) pipeline and floating ball are transported from jig into river；
3) pipeline one end is sent in the groove of left bank, is used in combination left bank gin pole suspension centre rope to be connected to pipe end, then with left bank end
For center of rotation, the pipeline other end is made slowly to make an arc to right bank, connects the pipeline other end with right bank gin pole suspension centre rope after entering position；
4) multiple positioning suspension centre ships are evenly arranged in pipeline side, and the suspension centre rope for positioning suspension centre ship is connected on pipeline；
5) water filling into pipeline, while symmetrical bleed air operation is carried out to multiple floating balls so that pipeline can smoothly sinking to river
In the pre-groove at bottom；
6) connection of pipeline and left bank gin pole suspension centre rope, right bank gin pole suspension centre rope and each positioning suspension centre ship suspension centre rope is disconnected,
With fine sand and aggregate chips bed course backfill pre-groove and restore river.
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 |
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| Publication Number | Publication Date |
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| CN105952967A CN105952967A (en) | 2016-09-21 |
| CN105952967B true CN105952967B (en) | 2018-09-14 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107166092B (en) * | 2017-06-23 | 2019-07-05 | 中交四航局第二工程有限公司 | A kind of pipeline underwater mating method |
| CN113235657B (en) * | 2021-04-30 | 2022-11-08 | 中国水利水电第十二工程局有限公司 | Heavy-caliber immersed tube assembly and immersed tube method |
| CN113863378B (en) * | 2021-09-30 | 2023-03-31 | 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1027712C (en) * | 1993-03-05 | 1995-02-22 | 浙江海港养护大队 | Light float and application in underwater engineering |
| NO20000289L (en) * | 1999-01-21 | 2000-07-24 | J Ray Mcdermott Sa | Method and device for marine pipeline installation |
| CN101761691B (en) * | 2009-09-30 | 2012-03-28 | 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 |
| CN103822019B (en) * | 2014-03-11 | 2015-12-09 | 东北石油大学 | Suspension conveying pipeline and method of construction thereof in water |
| CN103912722B (en) * | 2014-04-23 | 2016-01-13 | 中国化学工程第三建设有限公司 | A kind of group of pipeline river crossing is to immersed tube method |
| CN104633273B (en) * | 2014-12-29 | 2017-02-22 | 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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