CN106677257A - Installation process of sinking pipe for offshore water intake and discharge in power plant - Google Patents
Installation process of sinking pipe for offshore water intake and discharge in power plant Download PDFInfo
- Publication number
- CN106677257A CN106677257A CN201710135835.1A CN201710135835A CN106677257A CN 106677257 A CN106677257 A CN 106677257A CN 201710135835 A CN201710135835 A CN 201710135835A CN 106677257 A CN106677257 A CN 106677257A
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- China
- Prior art keywords
- immersed tube
- buoyancy tank
- draining
- steel buoyancy
- water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 171
- 238000011900 installation process Methods 0.000 title abstract 4
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 182
- 239000010959 steel Substances 0.000 claims abstract description 182
- 238000000034 method Methods 0.000 claims abstract description 40
- 238000007667 floating Methods 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims description 42
- 238000007599 discharging Methods 0.000 claims description 37
- 238000005259 measurement Methods 0.000 claims description 34
- 239000000725 suspension Substances 0.000 claims description 22
- 230000004308 accommodation Effects 0.000 claims description 20
- 238000003032 molecular docking Methods 0.000 claims description 15
- 230000013011 mating Effects 0.000 claims description 12
- 241000282806 Rhinoceros Species 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 6
- 238000007569 slipcasting Methods 0.000 claims description 5
- 238000010408 sweeping Methods 0.000 claims description 4
- 230000032258 transport Effects 0.000 claims description 4
- 241000282414 Homo sapiens Species 0.000 claims description 3
- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims description 3
- 235000011613 Pinus brutia Nutrition 0.000 claims description 3
- 241000018646 Pinus brutia Species 0.000 claims description 3
- 239000011083 cement mortar Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 3
- 239000000446 fuel Substances 0.000 claims description 3
- 239000010813 municipal solid waste Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims 1
- 239000011150 reinforced concrete Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 5
- 238000005457 optimization Methods 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000003908 quality control method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
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- 238000003860 storage Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
- E03B3/04—Methods or installations for obtaining or collecting drinking water or tap water from surface water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D23/00—Caissons; Construction or placing of caissons
- E02D23/02—Caissons able to be floated on water and to be lowered into water in situ
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D23/00—Caissons; Construction or placing of caissons
- E02D23/08—Lowering or sinking caissons
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0061—Production methods for working underwater
Abstract
The invention discloses an installation process of a sinking pipe for offshore water intake and discharge in a power plant. The installation process comprises the following steps of: prefabricating the sinking pipe, loading the sinking pipe, transporting by a semi-submersible barge, installing a steel floating box, submerging the semi-submersible barge, lifting the sinking pipe, positioning the sinking pipe, sinking and butting the sinking pipe, pulling tightly and closely, removing the steel floating box, and removing a measuring tower, a front-section jack and an installing fastener plate. The installation process disclosed by the invention has the advantages that the sinking pipe is installed by adopting floating support of the steel box, so that the problem of insufficient buoyancy of the sinking pipe is solved; the installing accuracy of the sinking pipe can be ensured to meet the requirements of the design and specifications; and by optimization of the process for removing the steel floating box, a foundation bed of the next section of the sinking pipe can be effectively protected, the engineering cost also can be reduced, and the construction period can be shortened.
Description
Technical field
The present invention relates to a kind of mounting process of power plant sea taking and discharging immersed tube.
Background technology
With economic and society sustainable development, power consumption is also skyrocketed through, for the use for meeting people's production and live
Electric demand, its major way is reconstruction, enlarging and the increase-volume in power plant, and many of which is thermal power station and nuclear power station.Thermal power generation
It is required for cooling down generating equipment with nuclear energy power generation, this is accomplished by substantial amounts of cooling water.Therefore, large nuclear-power, thermal power station
Mostly near bay, river mouth, lake, reservoir etc. addressing, so that local use water resource is realized cooling down.Taking and discharging immersed tube engineering
It is one of key factor of decision power plant heat energy efficiency height.The installation difficulty of taking and discharging immersed tube is big, is embodied in
The following aspects：
1) basis of immersed tube using rubble bedding version, steel buoyancy tank in demolishing process, easily to next section immersed tube
Rubble bedding damage；
2) volume of prefabricated immersed tube is big, weight weight, and immersed tube itself does not possess closing space, the buoyancy of itself offer compared with
It is little；
3) installation accuracy control of design requirement immersed tube is within 2cm, it is desirable to which precision is high；
4) joint number of immersed tube is more, it is long to install circuit, and the control of the mounting plane positional precision of immersed tube has high demands, if control less than
Position, easily causes larger accumulated error.
The content of the invention
It is an object of the invention to overcome the defect of prior art and provide a kind of installation of power plant sea taking and discharging immersed tube
Technique, it will ensure that the installation accuracy of immersed tube meets design and code requirement, moreover it is possible to reduce construction costs, shortens the construction period.
The object of the present invention is achieved like this：A kind of mounting process of power plant sea taking and discharging immersed tube, including following step
Suddenly：Refute on immersed tube prefabricated, immersed tube, partly latent barging, the installation of steel buoyancy tank, partly latent barge dive, immersed tube handling, immersed tube positioning,
Immersed tube sinking docking, tight drawing, dismounting steel buoyancy tank, dismounting measure tower, prosthomere jack and install buckle；Wherein,
When carrying out the immersed tube prefabricated step, be precasting yard harbour prefabricated more piece water intaking immersed tube, two water intake caissons,
More piece draining immersed tube and three discharge outlet head immersed tube；Press when prefabricated from bank side toward extra large side to from childhood to big establishment prefabricated component
Number, to be taken for installation toward extra large top-cross from bank side, draining immersed tube；
When carrying out refuting step on the immersed tube, the prefabricated immersed tube for completing is mounted on partly latent barge, immersed tube is placed in partly latent and refutes
The stem position of ship, only installs every time one and saves immersed tube；
When carrying out the partly latent barging step, the partly latent barge of a section immersed tube will be equipped with by precasting yard harbour by tugboat
Traction to dive cheat, partly latent barge along immersed tube mounting axis direction and head to extra large side, stern is towards bank side, then passes through
Corner weather moor is in place；
When carrying out the steel buoyancy tank installation steps, crane ship is first in place, then installs measurement GPS and drawing jack, then
Steel buoyancy tank is installed by crane ship；When crane ship is in place, crane ship is coaxially parked in the bow of partly latent barge with partly latent barge
And it is in place by corner weather moor；When measurement GPS is installed, the measurement GPS is placed to into the top of measurement tower, by wireless
Signal is connected with the computer of crane ship, then measurement tower crane is put on the built-in fitting of immersed tube, is fixed on by flange bolt pre-
On embedded part；The tail end of immersed tube axis is intended to install a measurement tower；The drawing jack is arranged on hanging for immersed tube head
On ring；Install steel buoyancy tank when, steel buoyancy tank is positioned in flat top barge, flat top barge rest in it is in place after partly latent barge one
Side；Crane ship is lifted to steel buoyancy tank on partly latent barge by laterally moving ship from flat top barge, then move by before and after ship and by
Elevator machine travel on partly latent barge fills in steel buoyancy tank in each duct of immersed tube；
It is the partly latent barge water filling dive after steel buoyancy tank installation when carrying out the partly latent barge dive step, when heavy
When the upper surface of the top board of pipe is slightly above the water surface, crane ship first moves forward accommodation, makes the gin pole of crane ship from partly latent barge
Stretch between first high building partly latent barge body immersed tube total length 1/2 at, when the center superposition of main hook vertical line and the immersed tube of crane ship
When stop move ship, put down main hook, be extension hanger rope, then partly latent barge continue dive, until immersed tube top immerse the water surface about 1m
When stop dive；
When carrying out immersed tube handling step, crane ship is moved rearwards by accommodation, and immersed tube is hung into partly latent barge, in handling process
In, the top surface of the immersed tube 1m below the water surface is kept, then rear anchor movement accommodation is tightened up, make dead man exit partly latent barge, subsequent partly latent
Barge draining is floated and take-up removes dive hole, then removes navigation channel position, and afterwards crane ship moves to installation site, casts anchor take-up just
Position, last partly latent barge tows back to precasting yard harbour by tugboat, carries out being refuted on lower section immersed tube, transports and dive；
When carrying out the immersed tube positioning step, position including at the beginning of the lifting ship positionning and immersed tube for carrying out successively；
When carrying out lifting ship positionning, the crane ship immersed tube that plays brings to into after foundation trench scope and casts anchor, with reference to prosthomere immersed tube tail
The reserved measurement tower in portion is, to mark standard, and to move accommodation by folding and unfolding hawser, when crane ship handling immersed tube is to from prosthomere immersed tube
During 10m, stop moving ship and accurately adjusting accommodation preparing immersed tube installation；
When positioning at the beginning of carrying out immersed tube, the computer of crane ship passes through the signal of the measurement GPS at the top of reception of wireless signals immersed tube,
The exact position of immersed tube is reflected on positioning software, captain is fed back to by surveyor, and by captain commander hoist engine behaviour
Workmanship's stranded cable carries out just positioning, and the axis and mounting axis for making immersed tube keeps aliging substantially, treats that immersed tube is slowly close and apart from front
During section immersed tube 1m, stop moving ship；
When carrying out the immersed tube sinking docking step, including draining immersed tube underwater mating and water intaking immersed tube underwater mating；
It is first that draining immersed tube to be installed is slow near prosthomere draining immersed tube when carrying out draining immersed tube underwater mating, now keep
Draining immersed tube to be installed be higher than prosthomere draining immersed tube 1m, until draining immersed tube to be installed apart from prosthomere draining immersed tube be less than 50cm when, then
Draining immersed tube to be installed is slowly shifted left close to into ways until stopping is moved to the left when contact with ways, under now starting
Put draining immersed tube to be installed to absolute altitude it is consistent with prosthomere draining immersed tube when stop decentralization, then slowly move forward draining immersed tube until
It is close to prosthomere draining immersed tube；
When carrying out water intaking immersed tube underwater mating, docking horizontal direction and vertical direction position are right by measurement tower control
When connecing, first by the slow close prosthomere water intaking immersed tube of water intaking immersed tube to be installed, when immersed tube 1m is fetched water apart from prosthomere, stop moving,
Axial location, the absolute altitude for adjusting water intaking immersed tube to be installed again is consistent with prosthomere water intaking immersed tube, and then crane ship moves forward accommodation,
Until water intaking immersed tube to be installed is close to prosthomere water intaking immersed tube；
When carrying out the tight step of the drawing, the drawing operation of immersed tube is carried out by water under diver, drawing jack passes through
The connection of steel wire rope, shackle and prosthomere immersed tube afterbody suspension centre, after the completion of connection, workboat oiling pump starts fuel feeding, jack pull bar
Reclaim, immersed tube starts drawing, until two section immersed tube seams stop drawing less than 2cm, finally, crane ship pine hook, then by diving under water
Member removes under water the shackle on immersed tube suspension centre；
When carrying out the dismounting steel buoyancy tank step, sink including the steel buoyancy tank water filling for carrying out successively, pull-out steel buoyancy tank, steel are floated
Case water outlet and steel buoyancy tank are reclaimed；
It is precise control steel buoyancy tank water injection rate, when steel buoyancy tank makes in inner chamber when carrying out steel buoyancy tank water filling sinking
It is mounted with foam；
It is that after steel buoyancy tank sinks down into the base plate of immersed tube, diver is by the core pulling anchor of crane ship when carrying out pulling out steel buoyancy tank
Hawser is connected by shackle with the head suspension ring of steel buoyancy tank, and crane ship indirect tightens up hawser examination and draws steel buoyancy tank, if examination is pulled through journey
Middle discovery is obstructed, and hawser and rear shifting accommodation are loosened immediately, until the smooth-going of steel buoyancy tank is moved when examination is drawn, can persistently by the drawing of steel buoyancy tank
Go out immersed tube；
It is that after steel buoyancy tank pulls out immersed tube, crane ship decentralization suspension hook, diver is carried out under water when carrying out steel buoyancy tank water outlet
Cable operation is changed, suspension hook system is hung on four, the top suspension ring of steel buoyancy tank, and open the flowing water Valve draining of steel buoyancy tank afterbody, hung
After the completion of hook heaving pile, crane ship tightens up hanger rope, slowly steel buoyancy tank is hung out into the water surface；
It is after steel buoyancy tank hangs out the water surface and finishes in steel buoyancy tank draining, to be floated steel by crane ship when carrying out buoyancy tank and reclaiming
Case is hung in flat top barge and deposits, and close on steel buoyancy tank into and out of valve, wait next immersed tube to install；
When carrying out removing measurement tower, prosthomere jack and installing buckle step, by diver underwater demolition bank side one end
Measure tower and the jack on prosthomere immersed tube and hang out the water surface, then buckle is installed, complete the installment work of the section immersed tube.
The mounting process of above-mentioned power plant's sea taking and discharging immersed tube, wherein, when intake pipe is installed, it is additionally included in dismounting measurement
Carry out seam slip casting step after tower, prosthomere jack and installation buckle step, i.e., it is by compression pump that cement mortar is heavy by two sections
Between two circle waterstops of the reserved section water intaking immersed tube of Grouting Pipe injection two of the seam crossing of pipe in space.
The mounting process of above-mentioned power plant's sea taking and discharging immersed tube, wherein, it is described to take when carrying out the immersed tube prefabricated step
The prefabricated quantity of water immersed tube is 20 sections, and first segment immersed tube to 13 section water intaking immersed tube of fetching water are diplopore altogether wall pipe, the horizontal stroke per hole
Rectangular in cross-section；14th section water intaking immersed tube is that altogether wall tube transitions are to two single hole pipes for diplopore, and the cross section per hole is also rectangular；
15th section water intaking immersed tube to the 20th section water intaking immersed tube is single hole pipe, and the cross section in hole is rectangle；17th section
End face and the 18th section water intaking immersed tube and the 16th section water intaking immersed tube that water intaking immersed tube is connected with the 15th section water intaking immersed tube
The end face of connection is to be faced directly, and other end is inclined-plane；The two ends of the 19th section water intaking immersed tube and the 20th section water intaking immersed tube
Face is inclined-plane；Per water intake caisson is cylindrical and circumferentially opens up a circle ferroconcrete prop and supports and divide
Every window of receiving water, each window of receiving water is respectively provided with trash rack；Be respectively provided with every water intake caisson groined type crossbeam and and
In the intersection of crossbeam, column is set.
The mounting process of above-mentioned power plant's sea taking and discharging immersed tube, wherein, when carrying out the immersed tube prefabricated step, the row
The prefabricated quantity of water immersed tube is 64 sections；First segment draining immersed tube to the 51st section draining immersed tube is three holes pipe, per hole
Cross section it is rectangular；52nd section draining immersed tube is the common wall tube transitions in three holes to three single hole pipes, and the cross section per hole is in
Rectangle；53rd section draining immersed tube is rectangular to the cross section that the 64th section draining immersed tube is single hole pipe and hole；
Per discharge outlet head immersed tube gradually subtracts for the size of the square single hole immersed tube in cross section and hole along water (flow) direction
Little, the top of discharge outlet head immersed tube arranges three rectangle rhinoceros heads, and the surrounding of each rhinoceros head is respectively provided with a draining window.
The mounting process of above-mentioned power plant's sea taking and discharging immersed tube, wherein, when carrying out the partly latent barging step, take
The dive hole of water immersed tube is located at the installation site of immersed tube of fetching water on the extended line of the mounting axis of water intaking immersed tube and apart from first segment
For 466m；The dive hole of draining immersed tube has two, and the dive hole of first draining immersed tube is located at the mounting axis of draining immersed tube
It is 774m on extended line and apart from the installation site of first segment draining immersed tube, the dive hole of second draining immersed tube is located at discharge outlet
The foundation trench position of head immersed tube.
The mounting process of above-mentioned power plant's sea taking and discharging immersed tube, wherein, when carrying out the steel buoyancy tank installation steps, except
By steel buoyancy tank plug in the duct of immersed tube, also using steel buoyancy tank is tied up outward, i.e., steel buoyancy tank is hung by crane ship to the both sides of immersed tube
Or top and binding steel wire rope is fastened, binding steel wire rope is lax in the both sides draw ring of immersed tube and the outside locating ring of steel buoyancy tank
Arrange, after pulling the plug under immersed tube, steel buoyancy tank floats, binding steel wire rope is tensed naturally, when steel buoyancy tank floats up to top surface and sinks
After the top surface of pipe is flushed, partly latent barge suspends dive, is tensed the seizing wire on the suspension ring for lying in steel buoyancy tank by operating personnel
And steel cord ends are lain on the pre-buried draw ring in top board middle part of immersed tube, allow steel case to be close proximity on the side wall of immersed tube, it is later half
Latent barge continues dive until the top surface of immersed tube does not have upstream face 1m.
The mounting process of above-mentioned power plant's sea taking and discharging immersed tube, wherein, when carrying out the partly latent barge dive step, first
The preparation before dive is carried out, including the period for sweeping sea, selection dive and handling installation.
The mounting process of power plant's sea taking and discharging immersed tube of the present invention has the characteristics that：
1) immersed tube prefabricated quality control and foundation for laid pipe quality control on construction are strengthened, it is ensured that the installation accuracy satisfaction of immersed tube sets
Meter and code requirement；
2) the prefabricated quality of strict control water intaking immersed tube joint, the moon before lower water is installed, to all water intaking immersed tube in field
Positive joggle carries out pairing measurement, and the negative and positive joggle to being unsatisfactory for dimensional requirement carries out polishing adjustment, meanwhile, install under water
When, design requirement control joint width is strictly pressed, the strict control grouting pressure during joint slip casting, it is ensured that joint slip casting is close
It is real；
3) when installing beginning, the mounting plane position of strict control initial workpiece immersed tube in subsequent construction, is installed to every immersed tube
Plan-position carries out record analysis, if accumulated error is larger, the installation site of lower section immersed tube is adjusted in time, to guarantee
The overall axial location of immersed tube meets design requirement；
4) immersed tube helps floating installation using steel case, solves the problems, such as that immersed tube natural buoyancy is not enough；
5) optimize the dismounting technique of steel buoyancy tank, i.e., when the anterior top hanger of steel buoyancy tank exposes immersed tube, hung with crane ship
Firmly the anterior top hanger of steel buoyancy tank continues to pull out steel buoyancy tank, when the top hanger at steel buoyancy tank rear portion exposes immersed tube, steel is floated
Case is placed on bedding and is the top hanger of hanging steel buoyancy tank rear portion, and crane ship hoisting steel buoyancy tank simultaneously continues to pull out steel buoyancy tank, directly
Immersed tube is pulled out to by steel buoyancy tank whole.By the way that the optimization for removing technique is helped steel case, can be effectively protected the base of next section immersed tube
Bed.
Description of the drawings
Fig. 1 is the flow chart of the mounting process of power plant's sea taking and discharging immersed tube of the present invention；
Fig. 2 is the erection sequence of the water intaking immersed tube installed using the mounting process of power plant's sea taking and discharging immersed tube of the present invention
Schematic diagram；
Fig. 3 is the erection sequence of the draining immersed tube installed using the mounting process of power plant's sea taking and discharging immersed tube of the present invention
Schematic diagram；
Fig. 4 is the front view of the steel buoyancy tank that the mounting process of power plant's sea taking and discharging immersed tube of the present invention is adopted；
Fig. 5 is the rearview of the steel buoyancy tank that the mounting process of power plant's sea taking and discharging immersed tube of the present invention is adopted；
Fig. 6 is the top view of the steel buoyancy tank that the mounting process of power plant's sea taking and discharging immersed tube of the present invention is adopted；
Fig. 7 is the axial section of the steel buoyancy tank that the mounting process of power plant's sea taking and discharging immersed tube of the present invention is adopted；
Fig. 8 a be tie up outside steel buoyancy tank that the mounting process of power plant's sea taking and discharging immersed tube of the present invention is adopted in second section and
Section three, the structural representation on water intaking immersed tube；
Fig. 8 b are the side views of Fig. 8 a；
Fig. 9 a are tied up in the 14th section outside the steel buoyancy tank of the mounting process employing of power plant's sea taking and discharging immersed tube of the present invention
Structural representation on water intaking immersed tube；
Fig. 9 b are the side views of Fig. 9 a；
Figure 10 a be tie up outside steel buoyancy tank that the mounting process of power plant's sea taking and discharging immersed tube of the present invention is adopted in first segment and
Section three, the structural representation on draining immersed tube；
Figure 10 b are the side views of Figure 10 a；
Figure 11 is tied up the 52nd outside the steel buoyancy tank of the mounting process employing of power plant's sea taking and discharging immersed tube of the present invention
Top view on section draining immersed tube；
Figure 12 is tied up the 59th outside the steel buoyancy tank of the mounting process employing of power plant's sea taking and discharging immersed tube of the present invention
Top view on section and 61 section draining immersed tube；
Figure 13 is to tie up oral in draining outside the steel buoyancy tank of the mounting process employing of power plant's sea taking and discharging immersed tube of the present invention
Top view on portion's immersed tube.
Specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 to Figure 13 is referred to, a kind of mounting process of power plant sea taking and discharging immersed tube of the invention is comprised the following steps：
Refute on immersed tube prefabricated, immersed tube, partly latent barging, the installation of steel buoyancy tank, partly latent barge dive, immersed tube handling, immersed tube positioning, immersed tube
Sinking docking, tight drawing, dismounting steel buoyancy tank, dismounting measure tower, prosthomere jack and install buckle.
When carrying out immersed tube prefabricated step, be the prefabricated 20 section water intaking immersed tube of precasting yard harbour, two water intake caissons, six
14 section draining immersed tube and three discharge outlet head immersed tube；Press when prefabricated from bank side toward extra large side to from childhood to big establishment prefabricated component
Number, to be taken for installation toward extra large top-cross from bank side, draining immersed tube；First segment water intaking immersed tube is common for diplopore to 13 section water intaking immersed tube
Wall pipe, the cross section per hole is rectangular；14th section water intaking immersed tube is the common wall tube transitions of diplopore to two single hole Guan Ercheng " Y "
Shape, the cross section per hole is also rectangular；15th section water intaking immersed tube to the 20th section water intaking immersed tube is single hole pipe, and hole
Cross section is rectangle；End face and the 18th section water intaking that 17th section water intaking immersed tube is connected with the 15th section water intaking immersed tube
The end face that immersed tube is connected with the 16th section water intaking immersed tube is to be faced directly, and other end is 15 ° of inclined-plane；19th section water intaking is heavy
The both ends of the surface of pipe and the 20th section water intaking immersed tube are 15 ° of inclined-plane；Every water intake caisson is in the circle with top board and base plate
Tubular simultaneously circumferentially opens up the window of receiving water that a circle ferroconcrete prop is supported and separated, and each window of receiving water is respectively provided with copper
The trash rack of alloy；Groined type crossbeam is respectively provided with every water intake caisson and is arranged in the intersection of crossbeam；Draining immersed tube
Prefabricated quantity be 64 section；First segment draining immersed tube to the 51st section draining immersed tube is three holes pipe, transversal per hole
Face is rectangular；52nd section draining immersed tube is that altogether wall tube transitions are to three single hole pipes in three holes, and the cross section per hole is rectangular；The
53 section draining immersed tube are rectangular to the cross section that the 64th section draining immersed tube is single hole pipe and hole；Every draining
Oral portion's immersed tube is gradually reduced for the size of the square single hole immersed tube in cross section and hole along water (flow) direction, discharge outlet head
The top of immersed tube arranges three rectangle rhinoceros heads, and the surrounding of each rhinoceros head is respectively provided with a draining window；
When carrying out refuting step on immersed tube, the prefabricated immersed tube for completing is mounted on partly latent barge using air bag movement technique, is sunk
Pipe is placed in the stem position of partly latent barge, one is only installed every time and saves immersed tube；
When carrying out partly latent barging step, the partly latent barge that will be equipped with a section immersed tube by tugboat is set by precasting yard harbour edge
Determine navigation channel traction to dive cheat, partly latent barge along immersed tube mounting axis direction and head to extra large side, stern towards bank side,
It is in place by corner weather moor again；The dive hole of water intaking immersed tube is located on the extended line of the mounting axis of water intaking immersed tube and distance
The installation site of first segment water intaking immersed tube is 466m；The dive hole of draining immersed tube has two, the dive hole of first draining immersed tube
It is located on the extended line of the mounting axis of draining immersed tube and is 774m apart from the installation site of first segment draining immersed tube, second row
The dive hole of water immersed tube is located at the foundation trench position of discharge outlet head immersed tube；
When carrying out steel buoyancy tank installation steps, crane ship is first in place, then installs measurement GPS and drawing jack, then passes through
Crane ship installs steel buoyancy tank；When crane ship is in place, crane ship is coaxially parked in the bow of partly latent barge and leads to partly latent barge
Cross corner weather moor in place；Install measurement GPS when, by measurement GPS be placed to measurement tower top, by wireless signal with rise
The computer of weight ship is connected, and the little suspension hook for recycling crane ship is put into tower crane is measured on the built-in fitting of immersed tube, by flange spiral shell
Bolt is fixed on built-in fitting；The tail end of the axis of immersed tube is intended to install a measurement tower；Being in line by 2 points, it is fixed to carry out
Position control；Drawing jack is arranged on the suspension ring of immersed tube head；When installing steel buoyancy tank, steel buoyancy tank is positioned in flat top barge,
Flat top barge rest in it is in place after partly latent barge side；Crane ship is lifted by crane steel buoyancy tank from flat top barge by laterally moving ship
To partly latent barge, then ship is moved by before and after and she by the elevator machine travel on partly latent barge steel buoyancy tank is filled in immersed tube each
In duct；In the duct of immersed tube, also draining immersed tube is saved except by steel buoyancy tank plug in the 14th section water intaking immersed tube and the 52nd
Top carry additionally steel buoyancy tank and help floating, to solve hoisting process in equilibrium problem, in addition second section and Section of three water intaking immersed tube,
First segment to Section four, Section eight, the 13rd section, the 18th section, the 22nd section, the 27th section, the 32nd section, the 3rd
Steel buoyancy tank is tied up outside the both sides of 17 sections, the 42nd section, the 59th section and the 60th section draining immersed tube and help floating, due to these structures
From great, interior plug steel buoyancy tank helps i limited to part；I.e. after partly latent barge and crane ship are in place in dive hole, will by crane ship
Steel buoyancy tank 200 hangs the both sides to immersed tube 100 and fastens binding steel wire rope 300 (diameter 43mm), and binding steel wire rope 300 is in immersed tube
It is lax setting in 100 both sides draw ring 101 and the outside locating ring 201 of steel buoyancy tank 200；After pulling the plug under immersed tube 100,
Steel buoyancy tank 200 floats, and binding steel wire rope 300 is tensed naturally, is flushed with the top surface of immersed tube 100 when steel buoyancy tank 200 floats up to top surface
Afterwards, partly latent barge suspends dive, and by operating personnel (the diameter of seizing wire 400 on the top hanger 22 of steel buoyancy tank 200 will be lain in
15mm) tense and lie in the end of steel wire rope 400 on draw ring 102 pre-buried in the middle part of the top board of immersed tube 100, make steel buoyancy tank 200 tight
It is against on the side wall of immersed tube 100, prevents steel buoyancy tank 200 from drifting about (see Fig. 8 a to Figure 10 b) toward both sides；Later half barge continue dive
Until the top surface of immersed tube does not have upstream face 1m；
When carrying out partly latent barge dive step, carried out after steel buoyancy tank installation, first to carry out the preparation before dive,
Including the period for sweeping sea, selection dive and handling installation；Sweep sea to be before first section immersed tube is installed, arrange surveying vessel to configure many ripples
Beam sounding instrument is cheated region and handling route to dive and carries out sweeping sea, draws accurate bathymetric chart；Dive and handling is selected to install
Period is and collects tidal level over the years, meteorological data, with reference to immersed tube drinking water, dive hole, handling route headwater depth, under finding out satisfaction
The tidal level time period that latent, the handling depth of water is required, to select dive, handling, installation exercise time；Partly latent barge water filling dive, when
When the upper surface of the top board of immersed tube is slightly above the water surface, accommodation is first moved forward by crane ship, the gin pole for making crane ship is refuted from partly latent
Stretch between the first high building of ship partly latent barge body immersed tube total length 1/2 at, when the center of main hook vertical line and the immersed tube of crane ship
Stop moving ship during coincidence, put down main hook, be extension hanger rope, then partly latent barge continues dive, until the water surface is immersed at the top of immersed tube
Stop during about 1m；
When carrying out immersed tube handling step, immersed tube is hung partly latent barge by crane ship, during handling, keeps the top of immersed tube
Face 1m below the water surface, then rear anchor movement accommodation is tightened up, make dead man exit partly latent barge, when crane ship moves to installation site, throw
Anchor take-up is in place；Subsequently the draining of partly latent barge is floated and take-up removes dive hole, then removes navigation channel position, is then towed back to by tugboat
Precasting yard harbour, carries out being refuted on lower section immersed tube, transports and dive；
When carrying out immersed tube positioning step, position including at the beginning of the lifting ship positionning and immersed tube for carrying out successively；
When carrying out lifting ship positionning, the crane ship immersed tube that plays brings to into after foundation trench scope and casts anchor, with reference to prosthomere immersed tube tail
The reserved measurement tower in portion is, to mark standard, and to move accommodation by folding and unfolding hawser, when crane ship handling immersed tube is to from mounted
During prosthomere immersed tube 10m, stop moving ship and accurately adjusting accommodation preparing immersed tube installation；
When positioning at the beginning of carrying out immersed tube, the computer of crane ship passes through the signal of the measurement GPS at the top of reception of wireless signals immersed tube,
The exact position of immersed tube is reflected on positioning software, just positioning is carried out by surveyor's commander's hoist engine operative employee stranded cable, make to sink
The axis of pipe keeps aliging substantially with mounting axis, whne immersed tube slowly near and during apart from prosthomere immersed tube about 1m, stop moving ship；
When carrying out immersed tube sinking docking step, including draining immersed tube underwater mating and water intaking immersed tube underwater mating；
It is first that draining immersed tube to be installed is slow near prosthomere draining immersed tube when carrying out draining immersed tube underwater mating, now keep
Draining immersed tube to be installed is higher than prosthomere draining immersed tube 1m, heavy in draining to be installed because ways is located at prosthomere draining immersed tube left side
The right side of prosthomere draining immersed tube should be slightly partial to during pipe reach, until draining immersed tube to be installed is less than apart from prosthomere draining immersed tube
During 50cm, then draining immersed tube to be installed is slowly shifted left close to into ways until stopping being moved to the left when contacting with ways,
Now start to transfer draining immersed tube to be installed to absolute altitude it is consistent with prosthomere draining immersed tube when stop decentralization, then slow mobile row forward
Water immersed tube completes docking up to being close to prosthomere draining immersed tube；
When carrying out water intaking immersed tube underwater mating, docking horizontal direction and vertical direction position are controlled by measurement tower, if
When docking encounters difficulties, diver's underwater observation can be passed through, felt, complete docking；It is first that water intaking immersed tube to be installed is slow during docking
Near prosthomere water intaking immersed tube, when immersed tube 1m is fetched water apart from prosthomere, stop movement, the axis of immersed tube of fetching water to be installed is adjusted again
Position, absolute altitude are consistent with prosthomere water intaking immersed tube, and then crane ship moves forward accommodation, until water intaking immersed tube to be installed is fetched water with prosthomere
Immersed tube is close to, and completes docking；
When carrying out the tight step of drawing, the drawing operation of immersed tube is carried out by water under diver, drawing jack passes through steel wire
The connection of rope, shackle and prosthomere immersed tube afterbody suspension centre, after the completion of connection, workboat oiling pump starts fuel feeding, and jack pull bar is reclaimed,
Immersed tube starts drawing, until two section immersed tube seams stop drawing less than 2cm, is collected evidence by diver's underwater photography, and two section immersed tube draw
Conjunction is completed, and finally, crane ship pine hook then removes under water the shackle on immersed tube suspension centre by diver；
When carrying out removing steel buoyancy tank step, sink including the steel buoyancy tank water filling for carrying out successively, pull-out steel buoyancy tank, steel buoyancy tank go out
Water and steel buoyancy tank are reclaimed；
It is precise control steel buoyancy tank water injection rate, when steel buoyancy tank makes in inner chamber when carrying out steel buoyancy tank water filling sinking
Foam is mounted with, to guarantee steel buoyancy tank after filling, its gravity is slightly larger than its buoyancy.
It is that after steel buoyancy tank sinks down into the base plate of immersed tube, diver is by the core pulling anchor of crane ship when carrying out pulling out steel buoyancy tank
Hawser is connected by the shackle top hanger anterior with steel buoyancy tank, and in the deeper section of water level leading truck can be on the bow installed, and reduces cable
The rope elevation angle, crane ship indirect tightens up hawser and tries drawing steel buoyancy tank, if examination finds to be obstructed during drawing, hawser and rear shifting is loosened immediately
Accommodation, until steel buoyancy tank smooth-going movement when examination is drawn, persistently can pull out immersed tube by steel buoyancy tank；In the top hanger that steel buoyancy tank is anterior
When exposing immersed tube, hang the anterior top hanger of steel buoyancy tank with crane ship and continue to pull out steel buoyancy tank, on the top at steel buoyancy tank rear portion
When hanger exposes immersed tube, steel buoyancy tank is placed on bedding and it is the top hanger of hanging steel buoyancy tank rear portion, crane ship hoisting steel is floated
Case simultaneously continues to pull out steel buoyancy tank, until steel buoyancy tank all to be pulled out immersed tube.
It is that after steel buoyancy tank pulls out immersed tube, crane ship decentralization suspension hook, diver is carried out under water when carrying out steel buoyancy tank water outlet
Cable operation is changed, suspension hook system is hung on four top hangers of steel buoyancy tank, and open the flowing water Valve draining of steel buoyancy tank afterbody, hung
After the completion of hook heaving pile, crane ship tightens up hanger rope, slowly steel buoyancy tank is hung out into the water surface, because now steel buoyancy tank is slightly larger than in gravity
The state of buoyancy, therefore jump situation on when the water surface is hung out being not in；
It is after steel buoyancy tank hangs out the water surface and finishes in steel buoyancy tank draining, to be floated steel by crane ship when carrying out buoyancy tank and reclaiming
Case puts back to the water surface, and the water-in and water-out valve closed on steel buoyancy tank, then steel buoyancy tank is hung to into storage in flat top barge, waits next
Part immersed tube is installed；
When carrying out removing measurement tower, prosthomere jack and buckle step being installed, the survey of diver underwater demolition bank side one end
Measure tower and the jack on prosthomere immersed tube and hang out the water surface, then steel buoyancy tank water filling is sunk and pulls out immersed tube piece by piece by crane ship,
Complete the installment work of the section immersed tube.It is to ensure that immersed tube seam does not loosen, it is impossible to tear open immediately after the part immersed tube installation
Except to drawing device, should again remove after the immersed tube installation of next section, buckle installation is finally carried out.
When intake pipe is installed, seam slip casting step is also performed to, i.e., by compression pump by cement mortar by two section immersed tube
Between two circle waterstops of the reserved section water intaking immersed tube of Grouting Pipe injection two of seam crossing in space.
The steel buoyancy tank that the mounting process of power plant's sea taking and discharging immersed tube of the present invention is adopted is included by front shrouding 1, rear shrouding
2nd, the cross section that top board 3, base plate 4 and biside plate 5,5 ' are constituted is the closed bin of rectangle, wherein,
The middle part of closed bin is front storehouse 10 and rear storehouse 30 by one piece of 20 points of dividing plate；Front storehouse 10 and the length phase in rear storehouse 30
Together；The total length of closed bin and the length adaptation of single-unit taking and discharging pipe；The length and width of the cross section of closed bin is respectively smaller than
The length and width of the cross section of the endoporus of single-unit taking and discharging pipe；
The top of front shrouding 1 is abreast provided with storehouse ventilation after 11, two front storehouse water intaking valves 12 1 of a front storehouse breather valve
Storehouse water intaking valve 14 after valve 13 and two, the bottom of the front shrouding 1 abreast arranges storehouse after a front storehouse outlet valve 15 and and goes out
Water valve 16；
Afterwards storehouse breather valve 13 is connected by storehouse breather pipe 130 after with rear storehouse 30；The rear storehouse breather pipe 130 is along front storehouse 10
Length direction it is horizontally disposed and its inner termination both passes through dividing plate 20 and stretches into rear storehouse 30；
Storehouse water intaking valve 14 is connected correspondingly by storehouse water inlet pipe 140 after two with rear storehouse 30 after two；After this two
Length direction of the storehouse water inlet pipe 140 along front storehouse 10 is horizontally disposed and their inner termination both passes through dividing plate 20 and stretches into rear storehouse 30；
Afterwards storehouse outlet valve 16 is connected by storehouse outlet pipe 160 after with rear storehouse 30；The rear storehouse outlet pipe 160 is along front storehouse 10
Length direction it is horizontally disposed and their inner termination both passes through dividing plate 20 and stretches into rear storehouse 30；
For the ease of lifting, a pair of end portions hanger 21 is respectively oppositely set in the upper and lower side of front shrouding 1；And in top board 3
The front middle part both sides in storehouse 10 of upper correspondence and the middle part both sides in rear storehouse 30 respectively oppositely arrange a top hanger 22；
For the ease of transport, in the front and rear part of base plate 4 pair roller 40 is respectively provided with.
Above example is used for illustrative purposes only, rather than limitation of the present invention, about the technology people of technical field
Member, without departing from the spirit and scope of the present invention, can also make various conversion or modification, therefore all equivalents
Technical scheme should also belong to scope of the invention, should be limited by each claim.
Claims (7)
1. the mounting process of a kind of power plant sea taking and discharging immersed tube, it is characterised in that comprise the following steps：Immersed tube prefabricated, immersed tube
On refute, partly latent barging, the installation of steel buoyancy tank, partly latent barge dive, immersed tube handling, immersed tube positioning, immersed tube sink docking, drawing
Closely, steel buoyancy tank is removed, measurement tower, prosthomere jack is removed and buckle is installed；
It is in the prefabricated more piece water intaking immersed tube of precasting yard harbour, two water intake caissons, more pieces when carrying out the immersed tube prefabricated step
Draining immersed tube and three discharge outlet head immersed tube；When prefabricated by from bank side toward extra large side to from childhood to working out prefabricated piece number greatly, with
Just taken for installation toward extra large top-cross from bank side, draining immersed tube；
When carrying out refuting step on the immersed tube, the prefabricated immersed tube for completing is mounted on partly latent barge, immersed tube is placed in partly latent barge
Stem position, only installs every time one and saves immersed tube；
When carrying out the partly latent barging step, the partly latent barge of a section immersed tube will be equipped with by precasting yard harbour traction by tugboat
To dive hole, partly latent barge along immersed tube mounting axis direction and head to extra large side, stern towards bank side, then by corner
Weather moor is in place；
When carrying out the steel buoyancy tank installation steps, crane ship is first in place, then installs measurement GPS and drawing jack, then passes through
Crane ship installs steel buoyancy tank；When crane ship is in place, crane ship is coaxially parked in the bow of partly latent barge and leads to partly latent barge
Cross corner weather moor in place；When measurement GPS is installed, the measurement GPS is placed to into the top of measurement tower, by wireless signal
Connect with the computer of crane ship, then measurement tower crane is put on the built-in fitting of immersed tube, built-in fitting is fixed on by flange bolt
On；The tail end of immersed tube axis is intended to install a measurement tower；The drawing jack is arranged on the suspension ring of immersed tube head；
Install steel buoyancy tank when, steel buoyancy tank is positioned in flat top barge, flat top barge rest in it is in place after partly latent barge side；Lifting
Ship is lifted to steel buoyancy tank on partly latent barge by laterally moving ship from flat top barge, then ship is moved by before and after and by partly latent barge
On elevator machine travel steel buoyancy tank is filled in each duct of immersed tube；
It is the partly latent barge water filling dive, when immersed tube after steel buoyancy tank installation when carrying out the partly latent barge dive step
When the upper surface of top board is slightly above the water surface, crane ship first moves forward accommodation, makes the first tower of the gin pole of crane ship from partly latent barge
Stretch between building partly latent barge body immersed tube total length 1/2 at, stop when the center superposition of main hook vertical line and the immersed tube of crane ship
Ship is only moved, main hook is put down, is extension hanger rope, then partly latent barge continues dive, stopped when the water surface about 1m is immersed at the top of immersed tube
Only dive；
When carrying out immersed tube handling step, crane ship is moved rearwards by accommodation, and immersed tube is hung into partly latent barge, during handling, protects
The top surface of the immersed tube 1m below the water surface is held, then tightens up rear anchor movement accommodation, make dead man exit partly latent barge, subsequent partly latent barge row
Floating and take-up waterborne removes dive hole, then removes navigation channel position, and afterwards crane ship moves to installation site, and take-up of casting anchor is in place, most
Afterwards partly latent barge tows back to precasting yard harbour by tugboat, carries out being refuted on lower section immersed tube, transports and dive；
When carrying out the immersed tube positioning step, position including at the beginning of the lifting ship positionning and immersed tube for carrying out successively；
When carrying out lifting ship positionning, the crane ship immersed tube that plays brings to into after foundation trench scope and casts anchor, pre- with reference to prosthomere immersed tube afterbody
The measurement tower for staying is, to mark standard, and to move accommodation by folding and unfolding hawser, when crane ship handling immersed tube is to from prosthomere immersed tube 10m
When, stop moving ship and accurately adjusting accommodation preparing immersed tube installation；
When positioning at the beginning of carrying out immersed tube, the computer of crane ship passes through the signal of the measurement GPS at the top of reception of wireless signals immersed tube, will be heavy
The exact position of pipe is reflected on positioning software, and by surveyor captain is fed back to, and commands hoist engine operative employee by captain
Stranded cable carries out just positioning, and the axis and mounting axis for making immersed tube keeps aliging substantially, treats that immersed tube is slowly close and heavy apart from prosthomere
During pipe 1m, stop moving ship；
When carrying out the immersed tube sinking docking step, including draining immersed tube underwater mating and water intaking immersed tube underwater mating；
It is first that draining immersed tube to be installed is slow near prosthomere draining immersed tube when carrying out draining immersed tube underwater mating, now keep to be installed
Draining immersed tube is higher than prosthomere draining immersed tube 1m, until draining immersed tube to be installed apart from prosthomere draining immersed tube be less than 50cm when, then will treat
Dress draining immersed tube is slowly shifted left close to ways until stopping being moved to the left when contacting with ways, now starts decentralization and treats
Dress draining immersed tube to absolute altitude it is consistent with prosthomere draining immersed tube when stop decentralization, then slowly move forward draining immersed tube up to it is front
Section draining immersed tube is close to；
When carrying out water intaking immersed tube underwater mating, docking horizontal direction and vertical direction position are controlled by measurement tower, during docking,
First by the slow close prosthomere water intaking immersed tube of water intaking immersed tube to be installed, when immersed tube 1m is fetched water apart from prosthomere, stop moving, adjust again
The axial location of whole water intaking immersed tube to be installed, absolute altitude are consistent with prosthomere water intaking immersed tube, and then crane ship moves forward accommodation, until treating
Dress water intaking immersed tube is close to prosthomere water intaking immersed tube；
When carrying out the tight step of the drawing, the drawing operation of immersed tube is carried out by water under diver, drawing jack passes through steel wire
The connection of rope, shackle and prosthomere immersed tube afterbody suspension centre, after the completion of connection, workboat oiling pump starts fuel feeding, and jack pull bar is reclaimed,
Immersed tube starts drawing, until two section immersed tube seams stop drawing less than 2cm, finally, crane ship pine hook, then by diver in water
The lower shackle removed on immersed tube suspension centre；
When carrying out the dismounting steel buoyancy tank step, sink including the steel buoyancy tank water filling for carrying out successively, pull-out steel buoyancy tank, steel buoyancy tank go out
Water and steel buoyancy tank are reclaimed；
It is precise control steel buoyancy tank water injection rate when carrying out steel buoyancy tank water filling sinking, the installation in inner chamber when steel buoyancy tank makes
Foam；
It is that after steel buoyancy tank sinks down into the base plate of immersed tube, diver is by the core pulling anchor hawser rope of crane ship when carrying out pulling out steel buoyancy tank
It is connected with the head suspension ring of steel buoyancy tank by shackle, crane ship indirect tightens up hawser examination and draws steel buoyancy tank, if sending out during examination is drawn
Now it is obstructed, hawser and rear shifting accommodation is loosened immediately, until the smooth-going of steel buoyancy tank is moved when examination is drawn, can be persistently heavy by the pull-out of steel buoyancy tank
Pipe；
It is that after steel buoyancy tank pulls out immersed tube, crane ship decentralization suspension hook, diver carries out changing cable under water when carrying out steel buoyancy tank water outlet
Operation, suspension hook system is hung on four, the top suspension ring of steel buoyancy tank, and opens the flowing water Valve draining of steel buoyancy tank afterbody, suspension hook system
After the completion of cable, crane ship tightens up hanger rope, slowly steel buoyancy tank is hung out into the water surface；
It is after steel buoyancy tank hangs out the water surface and finishes in steel buoyancy tank draining, to be hung steel buoyancy tank by crane ship when carrying out buoyancy tank and reclaiming
Deposit to flat top barge, and close on steel buoyancy tank into and out of valve, wait next immersed tube to install；
When carrying out removing measurement tower, prosthomere jack and installing buckle step, by the measurement of diver underwater demolition bank side one end
Jack on tower and prosthomere immersed tube simultaneously hangs out the water surface, then install buckle, completes the installment work of the section immersed tube.
2. the mounting process of power plant according to claim 1 sea taking and discharging immersed tube, it is characterised in that install intake pipe
When, it is additionally included in dismounting measurement tower, prosthomere jack and installs and carry out seam slip casting step after buckle step, i.e., by compression pump
Space between the two circle waterstops that cement mortar is passed through into the reserved section water intaking immersed tube of Grouting Pipe injection two of the seam crossing of two section immersed tube
In.
3. the mounting process of power plant according to claim 1 and 2 sea taking and discharging immersed tube, it is characterised in that carry out described
During immersed tube prefabricated step, the prefabricated quantity of the water intaking immersed tube is 20 sections, and first segment fetches water immersed tube to 13 section water intaking immersed tube
Wall pipe is total to for diplopore, the cross section per hole is rectangular；14th section water intaking immersed tube is the common wall tube transitions of diplopore to two single hole pipes,
Cross section per hole is also rectangular；15th section water intaking immersed tube to the 20th section water intaking immersed tube is single hole pipe, and the horizontal stroke in hole
Section is rectangle；The end face and the 18th section water intaking that 17th section water intaking immersed tube is connected with the 15th section water intaking immersed tube is heavy
The end face of the section water intaking immersed tube connections of Guan Yu 16 is to be faced directly, and other end is inclined-plane；19th section water intaking immersed tube and the
The both ends of the surface of 20 section water intaking immersed tube are inclined-plane；Per water intake caisson is cylindrical and circumferentially opens up a circle steel
The window of receiving water that reinforced concrete pillar is supported and separated, each window of receiving water is respectively provided with trash rack；In every water intake caisson
It is respectively provided with groined type crossbeam and and column is set in the intersection of crossbeam.
4. the mounting process of power plant according to claim 1 and 2 sea taking and discharging immersed tube, it is characterised in that carry out described
During immersed tube prefabricated step, the prefabricated quantity of the draining immersed tube is 64 sections；First segment draining immersed tube is to the 51st section row
Water immersed tube is three holes pipe, and the cross section per hole is rectangular；52nd section draining immersed tube is the common wall tube transitions in three holes to three
Single hole pipe, the cross section per hole is rectangular；53rd section draining immersed tube to the 64th section draining immersed tube is single hole pipe simultaneously
And the cross section in hole is rectangular；Per discharge outlet head immersed tube is the square single hole immersed tube in cross section and hole
Size is gradually reduced along water (flow) direction, and the top of discharge outlet head immersed tube arranges three rectangle rhinoceros heads, the surrounding point of each rhinoceros head
She Zhi not a draining window.
5. the mounting process of power plant according to claim 1 and 2 sea taking and discharging immersed tube, it is characterised in that carry out described
During partly latent barging step, the dive hole of immersed tube of fetching water is located on the extended line of the mounting axis of water intaking immersed tube and distance first
The installation site of section water intaking immersed tube is 466m；The dive hole that there is two, first draining immersed tube in the dive hole of draining immersed tube is located at
It is 774m on the extended line of the mounting axis of draining immersed tube and apart from the installation site of first segment draining immersed tube, second draining is sunk
The dive hole of pipe is located at the foundation trench position of discharge outlet head immersed tube.
6. the mounting process of power plant according to claim 1 and 2 sea taking and discharging immersed tube, it is characterised in that carry out described
During steel buoyancy tank installation steps, except by steel buoyancy tank plug in the duct of immersed tube, also using tying up steel buoyancy tank outward, i.e., by crane ship by steel
Buoyancy tank hangs the both sides or top to immersed tube and fastens binding steel wire rope, bundlees both sides draw ring and steel buoyancy tank of the steel wire rope in immersed tube
Outside locating ring in be lax setting, after pulling the plug under immersed tube, steel buoyancy tank floats, and binding steel wire rope is tensed naturally, when
Steel buoyancy tank is floated up to after top surface flushes with the top surface of immersed tube, and partly latent barge suspends dive, and steel buoyancy tank will be lain in by operating personnel
Seizing wire on suspension ring is tensed and lain in steel cord ends on draw ring pre-buried in the middle part of the top board of immersed tube, allows steel case to be close proximity to
On the side wall of immersed tube, afterwards partly latent barge continues dive until the top surface of immersed tube does not have upstream face 1m.
7. the mounting process of power plant according to claim 1 and 2 sea taking and discharging immersed tube, it is characterised in that carry out described
During partly latent barge dive step, the preparation before dive is first carried out, including the period for sweeping sea, selection dive and handling installation.
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| CN107642106A (en) * | 2017-09-01 | 2018-01-30 | 中交第航务工程局有限公司 | A kind of ship method for arranging for immersed tube installation |
| CN113374935A (en) * | 2021-06-09 | 2021-09-10 | 安徽鲁班建设投资集团有限公司 | Construction method for underwater installation of water intake head of water plant by using ship-borne method |
| CN113700017A (en) * | 2021-08-31 | 2021-11-26 | 中交第四航务工程局有限公司 | Underwater stay cord positioning method and measuring and positioning method for underwater installation of immersed tube |
| CN113879487A (en) * | 2021-10-12 | 2022-01-04 | 中交第四航务工程局有限公司 | Non-self-floating immersed tube discharging method |
| CN115434368A (en) * | 2022-05-13 | 2022-12-06 | 华侨大学 | Offshore-crossing immersed tube construction process |
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| CN107642106A (en) * | 2017-09-01 | 2018-01-30 | 中交第航务工程局有限公司 | A kind of ship method for arranging for immersed tube installation |
| CN113374935A (en) * | 2021-06-09 | 2021-09-10 | 安徽鲁班建设投资集团有限公司 | Construction method for underwater installation of water intake head of water plant by using ship-borne method |
| CN113700017A (en) * | 2021-08-31 | 2021-11-26 | 中交第四航务工程局有限公司 | Underwater stay cord positioning method and measuring and positioning method for underwater installation of immersed tube |
| CN113700017B (en) * | 2021-08-31 | 2023-02-03 | 中交第四航务工程局有限公司 | Underwater stay cord positioning method and measuring and positioning method for underwater installation of immersed tube |
| CN113879487A (en) * | 2021-10-12 | 2022-01-04 | 中交第四航务工程局有限公司 | Non-self-floating immersed tube discharging method |
| CN113879487B (en) * | 2021-10-12 | 2023-02-24 | 中交第四航务工程局有限公司 | Non-self-floating immersed tube discharging method |
| CN115434368A (en) * | 2022-05-13 | 2022-12-06 | 华侨大学 | Offshore-crossing immersed tube construction process |
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