CN108506569A - Heavy caliber water intaking siphon piping immersed tube method over long distances - Google Patents
Heavy caliber water intaking siphon piping immersed tube method over long distances Download PDFInfo
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- CN108506569A CN108506569A CN201810384891.3A CN201810384891A CN108506569A CN 108506569 A CN108506569 A CN 108506569A CN 201810384891 A CN201810384891 A CN 201810384891A CN 108506569 A CN108506569 A CN 108506569A
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- siphon piping
- pipeline
- immersed tube
- water
- siphon
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000010276 construction Methods 0.000 claims abstract description 19
- 238000009434 installation Methods 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 27
- 239000010959 steel Substances 0.000 claims description 27
- 238000003466 welding Methods 0.000 claims description 12
- 230000000740 bleeding effect Effects 0.000 claims description 9
- 238000007667 floating Methods 0.000 claims description 7
- 238000007689 inspection Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 240000002853 Nelumbo nucifera Species 0.000 claims 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 claims 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 claims 1
- 238000001727 in vivo Methods 0.000 claims 1
- 238000010943 off-gassing Methods 0.000 claims 1
- 238000009790 rate-determining step (RDS) Methods 0.000 claims 1
- 230000011218 segmentation Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
Classifications
-
- 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
-
- 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 or weights
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Revetment (AREA)
Abstract
The invention belongs to submarine pipeline technical field of construction, especially heavy caliber water intaking siphon piping immersed tube method over long distances, it is characterized in that this method is connected as entirety using bank segmentation group to waterborne in, fragmented transport to lake, and implement one end water inlet, one end exhaust air technique immersed tube technique of whole pipeline, immersed tube process is easy, quickly, it is safe and reliable.This method is practical through inviting various aspects expert to be checked to scene, proving the technical solution, with application No. is 201710687749.1, entitled inland lake water intaking siphon piping installation method is compared, large-scale crane usage charges 1/3 can be saved, manpower 1/3 is saved, and safely, effectively shortens installation period.
Description
Technical field
The invention belongs to submarine pipeline technical field of construction, especially heavy caliber water intaking siphon piping immersed tube sides over long distances
Method.
Background technology
Traditional sea siphon piping construction is poured water after mainly use on the water by the weldering of siphon piping group for entirety and immersed tube or is made
With engineering ships such as Large-scale Hoisting ship, haul ships, side group weldering ducting side immersed tube mode carries out siphon piping installation on the water.The former
Immersed tube risk is larger, should not use, and the latter needs Large-scale Hoisting ship, the haul engineering ships such as ship, due to current Erhai Lake in Dali and
Major inland lake in Yunnan Province（Such as Dian Chi, Yang Zonghai, Chengjiang Fuxian Lake）Without working ships such as Large-scale Hoisting ship, haul ships
Oceangoing ship can not also be implemented, this just needs separately to research and develop a kind of scientific and reasonable construction technology disclosure satisfy that siphon piping construction.
Application No. is 201710687749.1, the patent of invention Shen of entitled inland lake water intaking siphon piping installation method
It please disclose the installation method of the siphon piping of inland lake water intaking, the immersed tube scheme used is siphon pipe group to rear lower water,
It will wait for that the pipeline of group pair is placed at the slideway about l/3 of siphon piping slideway platform for lining, and pipeline corrected to siphon piping
On central axes, anchor ear is set on slideway, pipeline is embraced securely in group on frame, with the pipeline on siphon piping slideway platform for lining
Another pipeline is hung on slideway and is grouped by loop wheel machine, group two pipe welding simultaneously to after.After welding, anchor ear is unclamped,
Pipeline is sling with the door type frame on slideway, then carries out assembling next section of pipeline section；Until the underwater segment pipe of final stage install to
Absolute altitude is specified in design, when underwater segment pipe is docked with land segment pipe, then carries out concrete water-retaining wall construction, to form cofferdam,
A mouthful operation is touched using the completion of dry method welding technology.It is found through field investigation, periphery is typically due to without having in inland lake construction
Effect can utilize construction site, without available Tube formation place, need pipe string, welding, closure in the water surface, and deposit
It is put in the water surface, waits and carries out connecting leg immersed tube work again after all assembled；In addition, when being carried out using immersed tube scheme in foregoing invention
When long distance construction, the buoyancy in pipe can not be kept balancing with gravity, especially when bank end pipe does not also enter water, steel pipe stress shape
Moment of flexure is larger after change, and steel pipe deformation is caused to damage；In addition, long range immersed tube is affected by stormy waves, lateral force is easy to cause
Steel pipe deviates precalculated position, and difficulty of construction increases suddenly.
Invention content
It is directed to heavy caliber long range siphon piping not for immersed tube scheme in inland lake water intaking siphon piping installation method
Applicable problem, the present invention propose a kind of heavy caliber long range water intaking siphon piping immersed tube method.
The heavy caliber of present invention water intaking siphon piping immersed tube method over long distances, it is characterised in that this method passes through following steps
Implement：
1）Pipeline survey, pipeline label setting
Siphon piping axis, distance length are measured, keg float is used in combination to mark, keg float is fixed on thin steel rope and has been sunken to lakebed
Earth anchor on；
2）Pipe canal digging
Siphon piping requires embedment lakebed, it is necessary to be excavated to lakebed pipe trench, two digging machines are constructed mounted on siphon piping
It is fixed on workbench, and increases strut in siphon piping construction working platform surrounding and consolidate raft, digging machine is wanted by design
Ask digging to tube bottom absolute altitude；
3）Water intake anchor block is constructed：
Fill concrete is encapsulated with steel plate in land when water intake is constructed and form anchor block, and water intake and anchor block are hung in siphon
Pipeline water intake transporting and hoisting is with regard on bit platform, consigning to position location, and position fixation；
4）Pipe string, welding, connection
Siphon piping is grouped in siphon piping slideway platform for lining, ultrasonic inspection is carried out after welding, due to pipe
Line is longer, considers every 500 meters of conducts, one component segment pipe, and at two segmented conduit both ends, setting flange is stifled when segmented conduit assembles
Plate, so that pipeline on the water haul segmented conduit to orientation axis after waiting for by the assembling of design requirement length by transportation by driving, and
It assembles floating platform under water using siphon piping segmented pipeline and water intake assembling are connected, carries out next step immersed tube work；
5）Immersed tube
Pipeline holds setting air bleeding valve on the bank, and lakebed pipe trench and coordinate position are first checked before immersed tube, starts after meeting the requirements and sets in advance
Siphon piping water intake transporting and hoisting is placed in regard to the hoist engine on bit platform, water intake and anchor block are transferred together to lakebed, by
At intake intake, control the aperture of air bleeding valve, make pipeline dead weight and water it is great in buoyancy in the case of complete immersed tube operation.
Specifically, siphon piping construction working platform of the present invention, using Patent No. ZL201721004825.6
The siphon piping construction working platform that is related to of patent of invention；The siphon piping water intake transporting and hoisting is adopted with regard to bit platform
The siphon piping water intake transporting and hoisting being related to the patent of invention of Patent No. ZL201721004841.5 is with regard to bit platform；It is described
Siphon piping slideway platform for lining, it is described using the siphon piping slideway platform for lining of Patent No. 201721004151.X
Siphon piping assemble floating platform under water, floating platform is assembled using the siphon piping of Patent No. ZL201721005320.1 under water.
In order to ensure that segmented conduit is bonded, step 5）Middle segmented conduit group is to using " V " type groove, groove root to adopt
It uses δ 4mm band steels as liner, welds together with segmented conduit base material, respectively increase in upper and lower, left and right orientation again after welding together
If four pieces of weld seam reinforcing plates.After pipeline installation is in place, concrete is transported to point on pipeline is arranged in advance using delivery canoe
Concrete is injected into steel plate encapsulating babinet using conduit and realizes that underwater anchor block pours work by segment pipe junction.Pipeline and anchor block
Backfilling of pipe canal is carried out after construction, backfilling of pipe canal carries out operation at sea backfill using raft delivery excavator.Complete whole pipe
Line is installed.
The heavy caliber applied to inland lake of present invention water intaking siphon piping immersed tube method over long distances,
Entirety is connected as to waterborne in, fragmented transport to lake using bank segmentation group, and implements one end water inlet, one end exhaust air technique
Immersed tube technique of whole pipeline, immersed tube process is easy, quickly, it is safe and reliable.This method is through inviting various aspects expert to now
Check, to prove the technical solution practical, and application No. is 201710687749.1, entitled inland lake is fetched water siphon
Pipe installation method is compared, and large-scale crane usage charges 1/3 can be saved, and saves manpower 1/3, and safely, effectively shorten erector
Phase.
Description of the drawings
Fig. 1 is bending moment diagram when siphon piping bank end pipe does not enter water also.
Specific implementation mode
Embodiment 1：The heavy caliber of the technical program water intaking siphon piping immersed tube method over long distances is implemented on three library of Dali prefecture
Connection Erhai emergence compensating water engineering --- the green lake siphon piping engineering of Asia puecon mainly leads to pump pond by the green lake water of Asia puecon, then is pressurizeed with water lift
Pump is transported to after head-tank inputs Erhai by pipeline.Asia puecon Bi Hu is made of inland lake and outer lake, and outer lake water is about 2 meters deep, interior lake water
It is deep to be differed by 2-15 meter, outer lake dykes and dams extremely with about 2.5 kilometers of inland lake masonry dam boundary.Siphon piping is mainly by two Φ 1220*
12, material forms for Q235B steel pipes, and the underwater section single pipe of siphon piping grows more than 2500 rice, two pipeline total weights about 1500
Ton；Water-fetching head is by 2.5mX2.5mX3m（Long X wide X high）Concrete casting form, siphon pipe be embedded to concrete inside, formed town
Pier, single anchor block weigh about more than 40 tons；Siphon piping and anchor block sink to lakebed, stretch into more than 2500 rice in lake with lakebed topography, and bury
Enter lakebed, about 2 meters of tube top earthing.Specific immersed tube method is as follows：Siphon piping axis, distance length are measured, keg float is used in combination to make
Label puts one every 50 meters, and keg float is fixed on thin steel rope on the earth anchor for being sunken to lakebed, lake surface 2/3 is floated on keg float
Place, be not blown away subject to, every keg float must make eye-catching label of fluorescent paint；Siphon piping requires embedment lakebed, it is necessary to right
Lakebed pipe trench is excavated, two digging machines is mounted on siphon piping construction working platform and are fixed, and in siphon piping
Construction working platform surrounding increases strut and consolidates raft, and digging machine is dug by design requirement to tube bottom absolute altitude；In land when water intake is constructed
Anchor block is formed with steel plate encapsulating fill concrete on the ground, and water intake and anchor block are hung in siphon piping water intake transporting and hoisting just
On bit platform, consign to position location, and position fixation；Siphon piping is grouped in siphon piping slideway platform for lining,
100% ultrasonic inspection is carried out after welding, since pipeline is longer, considers every 500 meters of conducts, one component segment pipe, sectional pipe
Flange closure plate is set at two segmented conduit both ends when road assembles, so as to pipeline transportation by driving on the water, waits for assembling by design requirement length
After, segmented conduit is hauled to orientation axis, and floating platform is assembled under water by segmented pipeline and water intake using siphon piping
Assembling is connected, and carries out next step immersed tube work；Pipeline holds setting air bleeding valve on the bank, and lakebed pipe trench and seat are first checked before immersed tube
Cursor position starts after meeting the requirements and is set to siphon piping water intake transporting and hoisting with regard to the hoist engine on bit platform in advance, will take
Head and anchor block are transferred together to lakebed, are intake by intake, and the aperture of air bleeding valve is controlled, and keep pipeline great in dead weight and water
Immersed tube operation is completed in the case of buoyancy.
The core of this method is that immersed tube by controlling the aperture of air bleeding valve, adjusts immersed tube speed in the process.When in pipe
Buoyancy is in a basic balance with gravity, and steel pipe stress is little, and when the substantially all landing of steel pipe, air is substantially drained, and bank end pipe does not enter also
It is the most unfavorable when water, as shown in Figure 1.When siphon piping length be 2.5km, using Φ 1220*12 steel pipe when, steel pipe enters water
Line load afterwards is：
Hold place of entry to the horizontal distance of touchdown point on the bank if L is pipeline, calculate steel pipe using layer control makees in uniformly distributed line load q
With the corner QUOTE of lower right end ：
Claims (4)
1. heavy caliber water intaking siphon piping immersed tube method over long distances, it is characterised in that this method is implemented by following steps：
1）Pipeline survey, pipeline label setting
Siphon piping axis, distance length are measured, keg float is used in combination to mark, keg float is fixed on thin steel rope and has been sunken to lakebed
Earth anchor on；
2）Pipe canal digging
Siphon piping requires embedment lakebed, it is necessary to be excavated to lakebed pipe trench, two digging machines are constructed mounted on siphon piping
It is fixed on workbench, and increases strut in siphon piping construction working platform surrounding and consolidate raft, digging machine is wanted by design
Ask digging to tube bottom absolute altitude；
3）Water intake anchor block is constructed：
Fill concrete is encapsulated with steel plate in land when water intake is constructed and form anchor block, and water intake and anchor block are hung in siphon
Pipeline water intake transporting and hoisting is with regard on bit platform, consigning to position location, and position fixation；
4）Pipe string, welding, connection
Siphon piping is grouped in siphon piping slideway platform for lining, ultrasonic inspection is carried out after welding, is considered every
Flange closure plate is arranged at two segmented conduit both ends when segmented conduit assembles, so that pipeline is in water in 500 meters of one component segment pipes of conduct
Upper transportation by driving waits for after being assembled by design requirement length, segmented conduit is hauled to orientation axis, and utilizes siphon piping underwater
Segmented pipeline and water intake assembly welding are connected by assembling floating platform, carry out next step immersed tube work；
5）Immersed tube
Pipeline holds setting air bleeding valve on the bank, and lakebed pipe trench and coordinate position are first checked before immersed tube, starts after meeting the requirements and sets in advance
Siphon piping water intake transporting and hoisting is placed in regard to the hoist engine on bit platform, water intake and anchor block are transferred together to lakebed, by
At intake intake, control the aperture of air bleeding valve, make pipeline dead weight and water it is great in buoyancy in the case of complete immersed tube operation.
2. heavy caliber as described in claim 1 water intaking siphon piping immersed tube method over long distances, it is characterised in that the siphon
Pipeline construction workbench, the siphon piping construction work being related to using the patent of invention of Patent No. ZL201721004825.6
Make platform；The siphon piping water intake transporting and hoisting is with regard to bit platform, using the hair of Patent No. ZL201721004841.5
The siphon piping water intake transporting and hoisting that bright patent is related to is with regard to bit platform；The siphon piping slideway platform for lining, using special
Profit number is the siphon piping slideway platform for lining of 201721004151.X, and the siphon piping assembles floating platform under water, using special
Profit number assembles floating platform under water for the siphon piping of ZL201721005320.1.
3. heavy caliber as described in claim 1 water intaking siphon piping immersed tube method over long distances, it is characterised in that step 5）In point
Segment pipe group is to using " V " type groove, groove root, as liner, to be welded together together with segmented conduit base material using δ 4mm band steels
It connects, four pieces of weld seam reinforcing plates is respectively added in upper and lower, left and right orientation again after welding；After pipeline installation is in place, using fortune
It carries canoe to transport concrete to the segmented conduit junction being in advance arranged on pipeline, concrete, which is injected into steel plate, using conduit encapsulates case
Realize that underwater anchor block pours work in vivo；Pipeline and anchor block carry out backfilling of pipe canal after constructing, backfilling of pipe canal is transported using raft
It carries excavator and carries out operation at sea backfill, complete whole pipeline installation.
4. heavy caliber as described in claim 1 water intaking siphon piping immersed tube method over long distances, it is characterised in that need rate-determining steps
5）The aperture of middle air bleeding valve, when siphon piping length be 2.5km, using Φ 1220*12 steel pipe when, steel pipe enters the line lotus after water
Load is：
Hold place of entry to the horizontal distance of touchdown point on the bank if L is pipeline, calculate steel pipe using layer control makees in uniformly distributed line load q
With the corner of lower right end：
When not heavy section steel pipe right end contacts to earth, i.e. the tangent line and ground level of touchdown point steel pipe is can be considered at this time in uniformly distributed line load q
Under effect, steel pipe right end cornerEqual to the angle of steel pipe and lakebed：
Air bleeding valve outgassing rate is adjusted by this algorithm, monitors steel pipe moment of flexure in real time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810384891.3A CN108506569A (en) | 2018-04-26 | 2018-04-26 | Heavy caliber water intaking siphon piping immersed tube method over long distances |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810384891.3A CN108506569A (en) | 2018-04-26 | 2018-04-26 | Heavy caliber water intaking siphon piping immersed tube method over long distances |
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| CN108506569A true CN108506569A (en) | 2018-09-07 |
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| CN201810384891.3A Pending CN108506569A (en) | 2018-04-26 | 2018-04-26 | Heavy caliber water intaking siphon piping immersed tube method over long distances |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356184A (en) * | 2018-11-23 | 2019-02-19 | 广州市城市规划勘测设计研究院 | A kind of construction method of immersed pipe with anti-rainbow culvert across the river |
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| GB2404428B (en) * | 2003-11-07 | 2005-07-13 | Massoud Baghernejad | Method and apparatus for laying a pipeline |
| CN103912721B (en) * | 2014-04-23 | 2016-01-13 | 中国化学工程第三建设有限公司 | A kind of method of construction of fluting, immersed tube river crossing under water |
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| US20160377197A1 (en) * | 2015-06-24 | 2016-12-29 | Ian Larsen | Apparatus and method for positioning underwater pipe |
| CN107763307A (en) * | 2017-09-27 | 2018-03-06 | 广西建工集团第五建筑工程有限责任公司 | A kind of water filling nature immersed tube crosses the installation method of river pipeline |
| CN107830244A (en) * | 2017-08-11 | 2018-03-23 | 云南建投安装股份有限公司 | Inland lake water intaking siphon piping installation method |
-
2018
- 2018-04-26 CN CN201810384891.3A patent/CN108506569A/en active Pending
Patent Citations (7)
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|---|---|---|---|---|
| GB2404428B (en) * | 2003-11-07 | 2005-07-13 | Massoud Baghernejad | Method and apparatus for laying a pipeline |
| CN1558129A (en) * | 2004-01-30 | 2004-12-29 | 胜利油田胜利石油化工建设有限责任公 | Construction method for river crossing pipeline |
| CN103912721B (en) * | 2014-04-23 | 2016-01-13 | 中国化学工程第三建设有限公司 | A kind of method of construction of fluting, immersed tube river crossing under water |
| US20160377197A1 (en) * | 2015-06-24 | 2016-12-29 | Ian Larsen | Apparatus and method for positioning underwater pipe |
| CN106247011A (en) * | 2016-08-12 | 2016-12-21 | 中铁十局集团第十工程有限公司 | A kind of major diameter Long-distance Pipeline for Water Conveyance splicing, sinking system and method |
| CN107830244A (en) * | 2017-08-11 | 2018-03-23 | 云南建投安装股份有限公司 | Inland lake water intaking siphon piping installation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109356184A (en) * | 2018-11-23 | 2019-02-19 | 广州市城市规划勘测设计研究院 | A kind of construction method of immersed pipe with anti-rainbow culvert across the river |
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Application publication date: 20180907 |