CN108222068A - A kind of underwater immersed tube Bridge Erector and its construction technology - Google Patents
A kind of underwater immersed tube Bridge Erector and its construction technology Download PDFInfo
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- CN108222068A CN108222068A CN201710970142.4A CN201710970142A CN108222068A CN 108222068 A CN108222068 A CN 108222068A CN 201710970142 A CN201710970142 A CN 201710970142A CN 108222068 A CN108222068 A CN 108222068A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/063—Tunnels submerged into, or built in, open water
- E02D29/067—Floating tunnels; Submerged bridge-like tunnels, i.e. tunnels supported by piers or the like above the water-bed
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- Environmental & Geological Engineering (AREA)
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- General Engineering & Computer Science (AREA)
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- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of underwater immersed tube Bridge Erectors and its construction technology, the Bridge Erector to include：Underwater transport establishment and underwater hoisting mechanism；Wherein, the underwater hoisting mechanism, in seawater (6), the immersed tube (3) for treating sinking to be lifted to above the cushion cap (2) being arranged at seabed (1)；The underwater transport establishment, in seawater (6), the underwater hoisting mechanism is transported to the immersed tube (3) above the cushion cap (2) transported, sinking and docking.The solution of the present invention can overcome great in constructing amount, big on influence to channel in the prior art and be influenced the defects of serious by sea situation, realize that construction volume is small, small on influence to channel and small advantageous effect is influenced by sea situation.
Description
Technical field
The invention belongs to underwater construction technical fields, and in particular to a kind of underwater immersed tube Bridge Erector and its construction technology, especially
It is related to new underwater immersed tube Bridge Erector and its construction technology.
Background technology
With the development of science and technology and construction technology, " meeting water to build bridge " is no longer unique current mode.Seabed is built in for vehicle
And submerged structure-seabed tunnel for passing through of personnel be gradually used, and will become and solve across rivers, straits traffic problems
Prefered method.Immersed tube tunnel is applied to more and more widely in water transportation engineering, and is reached its maturity.Immersed tunnelling method tunnel
Construction is in the groove excavated in advance in prefabricated immersed tube tube coupling sinking to water, then in water that each section tube body is assembled
A kind of construction method being connected.
But shortcoming there are many present immersed tube tunnel constructions still, such as：
(1) immersed tube needs to carry out seabed a large amount of excavated volume, while after the completion of immersed tube laying before laying, it is also necessary to
It is largely backfilled, therefore great in constructing amount, of high cost, risk is big.
(2) immersed tube needs to be equipped with more powerful tugboats to haul immersed tube, so to navigation channel during transportation by driving
Holding time greatly increase, seriously affected shipping traffic.
(3) immersed tube immersion method primarily now be crane barge method, lifting platform method, lift method, buoyancy tank sinks the method for hanging etc., still
Its construction equipment is big, complicated construction technique, is influenced seriously by sea situation.
As it can be seen that in the prior art, there are great in constructing amount, big on influence to channel and influenced the defects of serious by sea situation.
Invention content
It is an object of the present invention in view of the foregoing drawbacks, a kind of underwater immersed tube Bridge Erector and its construction technology are provided, with solution
Certainly immersed tube needs to lead to the problem of great in constructing amount to the seabed a large amount of excavated volume of progress before laying in the prior art, reaches reduction
The small effect of construction volume.
The present invention provides a kind of underwater immersed tube Bridge Erector, including：Underwater transport establishment and underwater hoisting mechanism；Wherein, institute
Underwater hoisting mechanism is stated, in the seawater, the immersed tube for treating sinking to be lifted to above the cushion cap being arranged at seabed；The water
Lower transport establishment, in the seawater, the immersed tube transported to the underwater hoisting mechanism to above the cushion cap to be transported
Defeated, sinking and docking.
Optionally, the underwater transport establishment, including：Immersed tube travelling bogie and travelling bogie thrust hydraulic cylinder；Wherein, institute
Immersed tube travelling bogie is stated, for transporting the immersed tube；The travelling bogie thrust hydraulic cylinder coordinates with the immersed tube travelling bogie
Installation, for providing transportation power for the immersed tube travelling bogie.
Optionally, the underwater hoisting mechanism, including：Supporting mechanism, hoisting mechanism and actuating unit；Wherein, the branch
Support mechanism is used to support the hoisting mechanism and the actuating unit；The hoisting mechanism is arranged on the upper of the supporting mechanism
Side, for lifting the immersed tube；The actuating unit coordinates with the hoisting mechanism and installs, for being carried for the hoisting mechanism
For lifting power.
Optionally, the supporting mechanism, including：Immersed tube Bridge Erector side supporting leg, rear support leg, front leg strut and intermediate support leg；
Wherein, the immersed tube Bridge Erector side supporting leg, rear support leg, front leg strut and intermediate support leg, are separately positioned on the hoisting mechanism
Between corresponding position and seabed.
Optionally, the hoisting mechanism, including：Hoisting system, rear hanging beam trolley, crossbeam and preceding hanging beam trolley；Wherein, institute
Hoisting system, the rear hanging beam trolley and the preceding hanging beam trolley are stated, is separately mounted on the crossbeam；The supporting mechanism is set
It puts between the crossbeam and seabed.
Optionally, the actuating unit, including：Immersed tube Bridge Erector side supporting leg hydraulic motor.
Matching with above-mentioned Bridge Erector, another aspect of the present invention provides a kind of construction technology of underwater immersed tube Bridge Erector,
Including：The immersed tube is fixed on travelling bogie by step 1, is then transported to rear support leg by the rail on the immersed tube
In setting range, then by the thrust hydraulic cylinder on the travelling bogie by the first half of the immersed tube push through it is described after prop up
Leg；Step 2 is connected, and travel forward, then will be after the immersed tube by rear hanging beam trolley by preceding hanging beam trolley by mouth is hung before immersed tube
It hangs mouth to connect, then slow sinking immersed tube completes underwater mating in designated position, and GPS in a manner that sonar is combined；
Intermediate support leg is rotated to upright position and is supported on the immersed tube by step 3, and front leg strut is shunk, immersed tube is built bridge
Pusher side side supporting leg is packed up, and the forward travel of entire underwater Bridge Erector is pushed by the advance motor on the rear support leg, is reached
Behind another cushion cap position, the front leg strut is extended and starts to support, intermediate support leg is shunk and rotates to horizontal position, by institute
Immersed tube Bridge Erector side supporting leg is stated to extend and start to support.
Optionally, it further includes：After step 3, the travelling bogie is made to return to transport another immersed tube, at this time
Carry out the construction of another immersed tube.
Optionally, it wherein, in step 1, specifically includes：Steel wheel under the immersed tube travelling bogie passes through its drive motor
It is moved on rail on the immersed tube, and the immersed tube is transported in the setting range of underwater immersed tube rear supporting leg of bridge erecting machine；
And/or the immersed tube travelling bogie locks wheel and fixation, travelling bogie thrust Hydraulic Cylinder immersed tube by its hydraulic motor
It travels forward, and preceding in rear support leg one end distance；And/or in step 2, it specifically includes：It is hung before underwater immersed tube Bridge Erector
Beam trolley is connect with suspending head before immersed tube, and rear hanging beam trolley is connect with suspending head after immersed tube；And/or underwater immersed tube is in preceding hanging beam trolley,
Real-time when the mode that sonar is combined completes immersed tube sinking of hanging beam trolley and GPS is monitored and controlled to complete to dock afterwards,
Travelling bogie backtracking proceeds by the transport of next immersed tube simultaneously；And/or in step 3, it specifically includes：It is underwater heavy
After the completion of pipe sinking and docking, intermediate support leg is rotated by 90 ° it, while intermediate support leg hydraulic cylinder by the rotation motor of both sides
Elongation, and start to bear support force, and the hydraulic cylinder of front leg strut starts to recycle；And/or underwater immersed tube front outrigger for bridge girder erection machine, lead to
Its internal walking mechanism is crossed, is advanced in crossbeam lower railway, and stop after reaching another cushion cap position, front leg strut hydraulic pressure
Cylinder extends and starts to support stress；And/or underwater immersed tube Bridge Erector side landing leg hydraulic cylinder is shunk, intermediate support leg shrinks and leads to
90 degree of its both sides motor rotation is crossed, rear support leg is by advancing and reaching specific bit on the rail in its drive motor under water immersed tube
It postpones and stops, while underwater immersed tube Bridge Erector side landing leg hydraulic cylinder starts to extend and support.
The solution of the present invention as a result, realizes the underwater transport of underwater immersed tube, immersing, under water by underwater Bridge Erector
The erections such as docking, solve immersed tube in the prior art need to carry out seabed before laying a large amount of excavated volume cause it is great in constructing amount
Problem, so as to overcome great in constructing amount, big on influence to channel in the prior art and be influenced the defects of serious by sea situation, realize construction
It measures small, small on influence to channel and is influenced small advantageous effect by sea situation.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that being understood by implementing the present invention.
Below by drawings and examples, technical scheme of the present invention is described in further detail.
Description of the drawings
Fig. 1 is the front view of the underwater immersed tube Bridge Erector of the present invention；
Fig. 2 is the left view of the underwater immersed tube Bridge Erector of the present invention；
Fig. 3 is the vertical view of the underwater immersed tube Bridge Erector of the present invention；
Fig. 4 is the axonometric drawing of the underwater immersed tube Bridge Erector of the present invention；
Fig. 5 is the immersed tunnel structure axonometric drawing of the present invention；
Fig. 6 is underwater immersed tube travelling bogie axonometric drawing in underwater immersed tube Bridge Erector of the invention；
Fig. 7 is the underwater immersed tube rear supporting leg of bridge erecting machine axonometric drawing of the present invention；
Fig. 8 is the underwater immersed tube Bridge Erector intermediate support leg axonometric drawing of the present invention；
Fig. 9 is the underwater immersed tube front outrigger for bridge girder erection machine axonometric drawing of the present invention；
Figure 10 is the underwater immersed tube Bridge Erector construction drawing one of the present invention；
Figure 11 is the underwater immersed tube Bridge Erector construction drawing two of the present invention；
Figure 12 is the underwater immersed tube Bridge Erector construction drawing three of the present invention；
Figure 13 is the underwater immersed tube Bridge Erector construction drawing four of the present invention；
Figure 14 is the underwater immersed tube Bridge Erector construction drawing five of the present invention；
Figure 15 is the underwater immersed tube Bridge Erector construction drawing six of the present invention；
Figure 16 is the underwater immersed tube Bridge Erector construction drawing seven of the present invention.
With reference to attached drawing, reference numeral is as follows in the embodiment of the present invention：
1- seabeds；2- cushion caps；3- immersed tube；4- immersed tube travelling bogies；5- travelling bogie thrust hydraulic cylinders；6- seawater；7- sinks
Tube bridging pusher side side supporting leg；8- immersed tube Bridge Erectors side supporting leg hydraulic motor；9- hoisting systems；10- rear support legs；Hanging beam after 11-
Trolley；12- crossbeams；13- intermediate support legs；Hanging beam trolley before 14-；15- front leg struts.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the specific embodiment of the invention and
Technical solution of the present invention is clearly and completely described in corresponding attached drawing.Obviously, described embodiment is only the present invention one
Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Go out all other embodiments obtained under the premise of creative work, shall fall within the protection scope of the present invention.
To solve the deficiency in above-mentioned immersed tube tunnel construction, according to an embodiment of the invention, as shown in Fig. 1 to Figure 16, carry
A kind of underwater immersed tube Bridge Erector and its construction technology are supplied, specially suitable for the underwater transport of immersed tube and docking technique.
In an optional embodiment, immersed tube can be erected on the cushion cap of seabed, just as land by the solution of the present invention
Upper piling base and cushion cap, and box beam is placed on cushion cap equally.The vehicle of road is operated above in box beam, but the vehicle of the present invention
In immersed tube internal operation.
In order to reach above-mentioned immersed tube seabed erection mode, the present invention propose a kind of new underwater immersed tube Bridge Erector and its
Construction technology, the Primary Reference design and its construction technology of traditional railway box beam bridge formation machine, and to its each arrangement and method for construction
Pros and cons situation have conducted a thorough research, then design a Bridge Erector for meeting the transport of underwater immersed tube and sinking.Therefore,
So that it has obtained good raising in speed of application, construction efficiency, construction reliability etc..
In an optional embodiment, in the solution of the present invention, underwater immersed tube Bridge Erector mainly provides the underwater of immersed tube
The construction technologies such as transport, immersing, underwater mating, by the structural advantage of itself, solve shipping traffic influence it is big, apply
The problems such as construction equipment type is more, complicated construction technique.So that the speed of application of entire new underwater immersed tube Bridge Erector, construction
Efficiency, construction reliability etc. are greatly improved.
In an optional example, in the solution of the present invention, new underwater immersed tube means of transportation, i.e., complete underwater transport；Newly
Underwater immersed tube sinking mode, i.e., full immersing, environmental condition relatively stablize；New underwater immersed tube docking mode, i.e. GPS with
The mode that sonar is combined is monitored and controlled in real time；During entire underwater construction operation, stable construction of platform is provided；Automation,
The operating type of standardization ensure that the quality control in entire construction operation.
In an optional example, main function of the invention is to solve the construction work such as immersed tube transport, sinking, underwater mating
The problems such as big, construction equipment type is various, complicated construction technique is influenced on shipping traffic in skill.Its Primary Reference traditional railway
The design and its construction technology of box beam bridge formation machine, and design a Bridge Erector for meeting seabed immersed tube transport and sinking.Therefore,
So that it has obtained good raising in speed of application, construction efficiency, construction reliability etc..
Wherein, in the solution of the present invention, underwater immersed tube Bridge Erector is mainly by immersed tube travelling bogie 4, immersed tube Bridge Erector side
Supporting leg 7, hoisting system 9, rear support leg 10, intermediate support leg 13, front leg strut 15, crossbeam 12, rear hanging beam trolley 11 and preceding hanging beam trolley
14 grades form.
In an optional example, in the solution of the present invention, Specific construction step is as follows：
(1) first, immersed tube is fixed on travelling bogie 4, it is attached to be then transported to rear support leg 10 by the rail on immersed tube
Closely, then by the thrust hydraulic cylinder 5 on travelling bogie 4 first half of immersed tube is pushed through into rear support leg 10.
(2) secondly, it is connected, and travel forward by preceding hanging beam trolley 14 by mouth is hung before immersed tube, then by rear hanging beam trolley 11
Mouth will be hung after immersed tube to connect, then slow sinking immersed tube completes water in designated position, and GPS in a manner that sonar is combined
Lower docking.
(3) finally, intermediate support leg 13 rotates to upright position and is supported on immersed tube, and front leg strut 15 shrinks, immersed tube
Bridge Erector side supporting leg 7 is packed up, and the forward travel of entire underwater Bridge Erector is pushed by rear support leg 10 advance motor, is arrived
Up to after another cushion cap position, front leg strut 15 extends and starts to support, and intermediate support leg 13 shrinks and rotates to horizontal position, immersed tube frame
Bridge pusher side side supporting leg 7 extends and starts to support, while travelling bogie 4 returns to transport another immersed tube, carries out down at this time
The construction of one immersed tube.
The specific implementation process of the present invention is specifically described with reference to Fig. 1 to Figure 16：
(1) steel wheel under immersed tube travelling bogie 4 is moved, and immersed tube is transported by its drive motor on rail on immersed tube
It is sent near underwater immersed tube rear supporting leg of bridge erecting machine 10, such as Figure 10.
(2) immersed tube travelling bogie 4 locks wheel and fixation by its hydraulic motor, and travelling bogie thrust hydraulic cylinder 5 pushes
Immersed tube travels forward, and preceding in 10 one end distance of rear support leg, such as Figure 11.
(3) the preceding hanging beam trolley 14 of underwater immersed tube Bridge Erector is connect with suspending head before immersed tube, after rear hanging beam trolley 11 and immersed tube
Suspending head connects, such as Figure 12.
(4) in preceding hanging beam trolley 14, rear hanging beam trolley 11 and GPS are completed underwater immersed tube with the mode that sonar is combined
Real-time during immersed tube sinking is monitored and controlled to complete to dock, while 4 backtracking of travelling bogie proceeds by next immersed tube
Transport, such as Figure 13.
(5) for underwater immersed tube sinking with after the completion of docking, intermediate support leg 13 makes its rotate 90 by the rotation motor of both sides
Degree, while intermediate support leg hydraulic cylinder extends, and starts to bear support force, and the hydraulic cylinder of front leg strut 15 starts to recycle, such as Figure 14.
(6) underwater immersed tube front outrigger for bridge girder erection machine 15, by its internal walking mechanism, advances in 12 lower railway of crossbeam,
And stop after reaching another cushion cap position, 15 hydraulic cylinder of front leg strut extends and starts to support stress.
(7) supporting leg 7 hydraulic cylinder in underwater immersed tube Bridge Erector side is shunk, and intermediate support leg 13 shrinks and passes through its both sides motor rotation
It turn 90 degrees, rear support leg 10 on the rail in its drive motor under water immersed tube by advancing and stopping after reaching designated position, together
When underwater 7 hydraulic cylinder of immersed tube Bridge Erector side supporting leg start to extend and support, underwater immersed tube Bridge Erector proceeds by next at this time
Transport, sinking and the docking of a immersed tube, as shown in figure 16.
Through a large amount of verification experimental verification, technical solution using the present invention, the advantageous effect that can at least reach includes：
(1) immersed tube tunnel is laid with the excavated volume of early period, backfill amount substantially reduces, and makes its cost reduction, and risk reduces.
(2) due to the special construction of new underwater immersed tube Bridge Erector, immersed tube is all walked in transit under water, so immersed tube
Influence for navigation channel substantially reduces.
(3) new its immersed tube sinking of underwater immersed tube Bridge Erector all carries out under water, and medium is identical during sinking, environmental condition
Stabilization when stablizing relatively, be solely subjected to ocean currents without by other such environmental effects, therefore greatly improving immersed tube sinking
Property.
(4) new underwater immersed tube Bridge Erector its in terms of immersed tube docking, mainly GPS in a manner that sonar is combined,
Real-time monitoring and control can be reached for the docking of tube coupling, greatly improve its merging precision.
(5) new its entire construction technology of underwater immersed tube Bridge Erector be all using the operating type of automation, standardization, because
This can ensure the quality control in its entire construction operation.
To sum up, it will be readily appreciated by those skilled in the art that under the premise of not conflicting, above-mentioned each advantageous manner can be certainly
It is combined, is superimposed by ground.
The foregoing is merely the embodiment of the present invention, are not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.Any modification for all within the spirits and principles of the present invention, being made,
Equivalent replacement, improvement etc., should be included within scope of the presently claimed invention.
Claims (9)
1. a kind of underwater immersed tube Bridge Erector, which is characterized in that including：Underwater transport establishment and underwater hoisting mechanism；Wherein,
The underwater hoisting mechanism, in seawater (6), by the immersed tube (3) for treating sinking lifting to being arranged at seabed (1)
Above cushion cap (2)；
The underwater transport establishment, in seawater (6), being transported to the underwater hoisting mechanism to above the cushion cap (2)
The immersed tube (3) transported, sinking and docking.
2. Bridge Erector according to claim 1, which is characterized in that the underwater transport establishment, including：Immersed tube travelling bogie
(4) and travelling bogie thrust hydraulic cylinder (5)；Wherein,
The immersed tube travelling bogie (4), for transporting the immersed tube (3)；
The travelling bogie thrust hydraulic cylinder (5) coordinates with the immersed tube travelling bogie (4) and installs, for being transported for the immersed tube
Defeated trolley (4) provides transportation power.
3. Bridge Erector according to claim 1 or 2, which is characterized in that the underwater hoisting mechanism, including：Supporting mechanism,
Hoisting mechanism and actuating unit；Wherein,
The supporting mechanism is used to support the hoisting mechanism and the actuating unit；
The hoisting mechanism is arranged on the top of the supporting mechanism, for lifting the immersed tube (3)；
The actuating unit coordinates with the hoisting mechanism and installs, for providing lifting power for the hoisting mechanism.
4. Bridge Erector according to claim 3, which is characterized in that the supporting mechanism, including：Immersed tube Bridge Erector side branch
Leg (7), rear support leg (10), front leg strut (15) and intermediate support leg (13)；Wherein,
The immersed tube Bridge Erector side supporting leg (7), rear support leg (10), front leg strut (15) and intermediate support leg (13), are separately positioned on
Between the corresponding position of the hoisting mechanism and seabed (1).
5. Bridge Erector according to claim 3, which is characterized in that the hoisting mechanism, including：Hoisting system (9), after hang
Beam trolley (11), crossbeam (12) and preceding hanging beam trolley (14)；Wherein,
The hoisting system (9), the rear hanging beam trolley (11) and the preceding hanging beam trolley (14), are separately mounted to the crossbeam
(12) on；
The supporting mechanism is arranged between the crossbeam (12) and seabed (1).
6. Bridge Erector according to claim 3, which is characterized in that the actuating unit, including：Immersed tube Bridge Erector side branch
Leg hydraulic motor (8).
A kind of 7. construction technology of underwater immersed tube Bridge Erector as described in any one of claim 1-6, which is characterized in that packet
It includes：
The immersed tube (3) is fixed on travelling bogie (4) by step 1, is then transported to by the rail on the immersed tube (3)
In the setting range of rear support leg (10), then by the thrust hydraulic cylinder (5) on the travelling bogie (4) by the immersed tube (3)
First half pushes through the rear support leg (10)；
Step 2 is connected, and travel forward by preceding hanging beam trolley (14) by mouth is hung before immersed tube, then will by rear hanging beam trolley (11)
Mouth is hung after the immersed tube (3) to connect, then slow sinking immersed tube is in designated position, and GPS in a manner that sonar is combined
Complete underwater mating；
Intermediate support leg (13) is rotated to upright position and is supported on the immersed tube (3) by step 3, and front leg strut (15) is shunk
Get up, immersed tube Bridge Erector side supporting leg (7) is packed up, pushed by the advance motor of (10) on the rear support leg entire underwater
The forward travel of Bridge Erector after reaching another cushion cap position, the front leg strut (15) is extended and starts to support, by intermediate support leg
(13) it shrinks and rotates to horizontal position, the immersed tube Bridge Erector side supporting leg (7) is extended and start to support.
8. construction technology according to claim 7, which is characterized in that further include：After step 3, make the transport small
Vehicle (4) returns to transport another immersed tube, carries out the construction of another immersed tube at this time.
9. construction technology according to claim 7 or 8, which is characterized in that wherein,
In step 1, it specifically includes：
Steel wheel under the immersed tube travelling bogie (4) is moved, and will by its drive motor on rail on the immersed tube (3)
The immersed tube (3) is transported in the setting range of underwater immersed tube rear supporting leg of bridge erecting machine (10)；And/or
The immersed tube travelling bogie (4) locks wheel and fixation by its hydraulic motor, and travelling bogie thrust hydraulic cylinder (5) pushes
Immersed tube travels forward, and preceding in rear support leg (10) one end distance；
And/or
In step 2, it specifically includes：
The preceding hanging beam trolley (14) of underwater immersed tube Bridge Erector connect with suspending head before immersed tube, rear hanging beam trolley (11) and suspending head after immersed tube
Connection；And/or
For underwater immersed tube in preceding hanging beam trolley (14), rear hanging beam trolley (11) and GPS complete immersed tube with the mode that sonar is combined
Real-time during sinking is monitored and controlled to complete to dock, while travelling bogie (4) backtracking proceeds by next immersed tube
Transport；
And/or
In step 3, it specifically includes：
After the completion of underwater immersed tube sinking and docking, intermediate support leg (13) is rotated by 90 ° it, simultaneously by the rotation motor of both sides
Intermediate support leg hydraulic cylinder extends, and starts to bear support force, and the hydraulic cylinder of front leg strut (15) starts to recycle；And/or
Underwater immersed tube front outrigger for bridge girder erection machine (15) by its internal walking mechanism, advances, and reach in crossbeam (12) lower railway
It stops after to another cushion cap position, front leg strut (15) hydraulic cylinder extends and starts to support stress；And/or
Underwater immersed tube Bridge Erector side supporting leg (7) hydraulic cylinder is shunk, and intermediate support leg (13) shrinks and passes through its both sides motor rotation
90 degree, rear support leg (10) on the rail in its drive motor under water immersed tube by advancing and stopping after reaching designated position, together
When underwater immersed tube Bridge Erector side supporting leg (7) hydraulic cylinder start to extend and support.
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| GB2575850B (en) * | 2018-07-26 | 2020-08-05 | Abdulkadir Omer Bndean | Transport system using renewable energy |
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| CN109973125B (en) * | 2019-04-12 | 2021-03-26 | 蔡佳恒 | Submarine tunnel lays and equips |
| CN110182305A (en) * | 2019-05-31 | 2019-08-30 | 上海江南长兴造船有限责任公司 | A kind of mobile hanging beam and application method hanging mouth region domain for ship |
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Application publication date: 20180629 |