CN105926679A - Dismounting method for pipe joints of immersed tube tunnel - Google Patents
Dismounting method for pipe joints of immersed tube tunnel Download PDFInfo
- Publication number
- CN105926679A CN105926679A CN201610346083.9A CN201610346083A CN105926679A CN 105926679 A CN105926679 A CN 105926679A CN 201610346083 A CN201610346083 A CN 201610346083A CN 105926679 A CN105926679 A CN 105926679A
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- CN
- China
- Prior art keywords
- tube coupling
- tunnel
- dismounting
- tube
- immersed tube
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
Abstract
The invention relates to a dismounting method for pipe joints of an immersed tube tunnels, and belongs to the technical field of hydraulic engineering. An immersed tube tunnel dismounting technology is absent at present, and therefore, a waste immersed tube tunnel cannot be dismounted, so that influence is generated on a marine environment. The dismounting method fills the technical blank. The dismounting method comprises a step of mounting a steel sealing door, a step of dismounting an end part anti-thrust section and a step of dismounting tunnel pipe joints. The dismounting method is used for dismounting the immersed tube tunnel.
Description
Technical field
The present invention relates to immersed tube tunnel tube coupling method for dismounting, belong to hydraulic engineering technical field.
Background technology
Mounting technique for immersed tube originates from relatively early, and the test first of world's immersed tube tunnel technology was carried out in London in 1810, anti-
Water problems fails to solve.Detroit ,U.S.A chunnel is the First submerged tunnel for transportation, in 1910 annual interests
Build up by immersed tube technology, indicate the successful birth of immersed tunnelling method.It is more that the U.S. builds tunnel in bay, due to the depth of water one in bay
As more than inland river, use box hat or clad steel shell structure (box hat is generally circular in cross section), consider to be better than rectangle from loading angle.China
Immersed tube tunnel technology is started late, but quickly grows.In early 1960s, once carried out immersed tube tunnel technology in Shanghai
Research, and built up First blowdown submerged tunnel in 1976 at Shanghai Jinshan petrochemical industry project first Application immersed tunnelling method.China
The urban road seabed tunnel crossing over Victoria Harbour was built up in Hongkong in 1972.
For the research of immersed tube demolition technique the most not this technology, the underwater demolition construction skill of the most large-scale immersed tube
Art, the most not relevant technology report, the method using crane ship directly to sling is removed more for large-scale component under water,
The implementing of the method needs large-scale equipment, efficiency of construction is low, risk is big, and is unfavorable for energy-conserving and environment-protective.
Summary of the invention
It is an object of the invention to solve the drawbacks described above that prior art exists, it is proposed that a kind of immersed tube tunnel tube coupling method for dismounting,
It has, and dismounting efficiency is high, remove effective feature.
The present invention is to use following technical scheme to realize: a kind of immersed tube tunnel tube coupling method for dismounting, seals up a door step including installing steel
Suddenly, thrust section in end removes step and tunnel tube coupling removes step.
Steel is installed seal up a door step, is included in the two ends of each section of tube coupling of immersed tube tunnel and steel is installed seals up a door, provide forming confined space
Buoyancy, seals up a door to mounted steel and carries out watertightness experiment, and thrustor is installed in the junction between the tube coupling in tunnel.
Thrust section in end removes step, including excavation end thrust section part, the foundation ditch of excavation is carried out slope retaining, by thrust
Section part cuts off certain length, the part cut off clearly is gone out construction area, opens pattern foundation pit supporting structure part.
Tunnel tube coupling removes step, including sealing of being sealed up a door by the steel in tube coupling to be removed, it is provided that part buoyancy, by crane gear
Lifting rope be connected with tube coupling to be removed, the pipeline of thrustor is connected with control system, open thrustor, when pipe to be removed
After joint departs from remaining tube coupling, start crane gear, make tube coupling emerge.
As preferably, thrustor is jack.
As preferably, the mode that the foundation ditch excavated carries out slope retaining includes panel wall support pattern or bolt-spary supports mode.
As preferably, include tube coupling base foundation part to wash away space by the step that the lifting rope of crane gear is connected with tube coupling,
Lifting rope from crane gear drop down is run through bottom tube coupling, lifting rope is connected with the suspension hook on crane gear.
As preferably, it is provided with buoyancy tank in the both sides of tube coupling to be removed.
As preferably, steel is sealed up a door and is provided with feeding/discharging device, and feeding/discharging device controls to be connected with PLC control system.
As preferably, buoyancy tank is provided with feeding/discharging device, and feeding/discharging device controls to be connected with PLC control system.
The invention has the beneficial effects as follows:
One: the present invention can lead to too small amount of equipment and manual security quickly removes immersed tube thrust section, tube coupling dismounting is divided into many
The individual stage, large-scale immersed tube tunnel it is divided into multiple stage merogenesis to remove, safe and efficient.
Two: the present invention seals up a door by steel, form a confined space in making tube coupling, employing confined space helps to float and combines with lifting
Construction method can steadily, quickly and safely by tunnel tube coupling remove, energy-saving consumption-reducing, effectively utilize buoyancy of water as lifting
Immersed tube is floated by gravity.
Accompanying drawing explanation
Fig. 1 end thrust section excavation area schematic；
Fig. 2 immersed tube tunnel removes schematic cross-sectional view；
Fig. 3 immersed tube tunnel demolishing process schematic diagram；
In figure: 1 thrust section removes 3 marine sections 4 excavation region 5GINA waterstop 6 buoyancy tanks of part 2 immersed tube joining section
7 crane gear 8 steel, 9 dismounting tube coupling 10 blotters 11 of sealing up a door are not removed tube coupling 12 lifting rope 13 and are controlled cable.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention will be further described.
The overall construction thinking of immersed tube tunnel tube coupling is described below, and the dismounting of tube coupling have employed the construction method of overall floating, can be complete
Whole is transported to specify region from seabed floating rear dragging by tube coupling.Tube coupling floating, by being closed by tunnel tube coupling, forms a confined air
Between, thus producing buoyancy, its top is refuted (crane gear) by side and is provided and hang power and sling by immersed tube, hangs out tube coupling after the water surface
Dry string adjusts refutes fixing with side behind 0.1～0.3m.By tugboat, immersed tube is hauled to specifying position, then refute lifting by side
Tube coupling is sunk sinking to specifying region by equipment.
The immersed tube tunnel tube coupling method for dismounting of the present invention, removes step and tunneltron including installing seal up a door step, end thrust section of steel
Joint removes step.
Steel is installed seal up a door step, steel is installed at the two ends of each section of tube coupling of immersed tube tunnel and seals up a door, make each section of tube coupling all form one
Confined space, seals up a door to mounted steel and carries out watertightness experiment, make sealing meet construction requirement, then the pipe in tunnel
Thrustor is installed in junction between joint.Steel is sealed up a door and is belonged to existing technology, the most only uses when installing immersed tube tunnel, this
Invent and seal up a door dismounting immersed tube tunnel with this steel.Steel is sealed up a door and is provided with feeding/discharging device, i.e. adds water and the valve of draining, enters draining dress
Put and control to be connected with PLC control system, the amount of water that steel is sealed up a door in immersed tube can be controlled, thus control buoyancy.
It is on-the-spot that thrust section in end removes step, first closure construction, and just immersed tube thrust section part is excavated simultaneously, the most right
Excavation pit carries out slope retaining, can use the mode of panel wall or bolt-spary supports, specifically determine with actual geological conditions.Immersed tube
Thrust section in tunnel typically uses cast-in-place concrete structure, after Support of Foundation Pit Excavation completes, by thrust section portion under dry operating condition
Pipeline section, except certain length, is cleared out of construction area by land loop wheel machine or other equipment so that tube coupling end is left necessarily by segmentation
Space, the floating construction of follow-up tube coupling.After the thrust section at two ends has been removed, open the pattern foundation pit supporting structure part of one end,
Making this excavation region and sea UNICOM, the tube coupling end of this one end is to close, so sea water will not enter in tunnel tube coupling.
Tunnel tube coupling removes step, and dismounting is from the beginning of the tube coupling of this one end of pouring water, and steel is sealed up a door and can be opened and closed, and work people
Member enters from the other end, and closedown of being sealed up a door by the internal steel of the tube coupling of this one end of pouring water, this section of tube coupling is the formation of a confined space.
The connection of lifting rope, is washed away this section of immersed tube base foundation part by giant so that go out certain sky on foundation for laid pipe
Gap, then makes to run through bottom tube coupling by lifting rope under bath pressure, is then connected with upper hooks by lifting rope.Immersed tube pushing tow fills
Put employing jack, when installing steel and sealing up a door, the junction that 5 set jack are arranged on every pipe joint joint is reserved pipeline, when this
After one section of tube coupling seals, the pipeline of the thrustor between tube coupling is connected by staff with control system, closes next section of tube coupling end
The steel in portion is sealed up a door.After all preparations complete, open thrustor so that immersed tube to be removed and tube coupling depart from about 50cm, this
Shi Qidong tackling system, makes dismounting immersed tube slowly rise floating to the water surface.Follow-up tube coupling method for dismounting ibid, for final stage tube coupling,
The i.e. tube coupling of the other end, after tube coupling is closed by workmen, opens the pattern foundation pit supporting structure part of this one end so that it is be submerged in sea water
In, then carry out follow-up work.
After tube coupling floating water outlet, tube coupling is refuted with side and is fixed, by tugboat transportation by driving to specifying region, it should be mentioned that
Transportation by driving navigation channel needs to reach transportation by driving condition in advance.Arrive and remove stationary rope, by slow for tube coupling sinking to specifying district after specifying region
Territory, completes tube coupling Demolition Construction.Immersed tube can be buried, it is also possible to transportation by driving is sharp to specifying region to reclaim specifying region to dig pit nearby
With.
In order to be better understood from this programme, add Fig. 1 to Fig. 3.When removing thrust section, as it is shown in figure 1, thrust section is turned left
For land-based area section, turning right as marine site section, immersed tube joining section 2 is the tube coupling at two ends, whole tunnel, passes through between itself and marine section 3
GINA waterstop 5 is tightly connected, and is that thrust section removes part 1 in immersed tube joining section 2 end, and during construction, excavation region 4 is selected
Select about, after thrust section dismounting part 1 being removed, certain space will be left in immersed tube joining section 2 end, after being beneficial to
Continuous construction.
As in figure 2 it is shown, remove schematic cross-sectional view for immersed tube tunnel, black wire part the thickest in figure is tunnel, tunnel
Gallery in steel be installed seal up a door 8, in order to increase buoyancy, buoyancy tank 6 can be increased in tube coupling both sides, for buoyancy tank 6, which is provided with
Feeding/discharging device, the feeding/discharging device of buoyancy tank 6 and steel seal up a door shared a set of PLC control system, the setting of this structure also for
Control buoyancy.When immersed tube is by haul waterborne equipment transportation by driving to appointment region, can be controlled by PLC, regulate buoyancy, make immersed tube
Slowly sinking is to specifying position.
As it is shown on figure 3, be immersed tube tunnel demolishing process schematic diagram, tube coupling is arranged on blotter 10, hangs down from crane gear 7
The lifting rope 12 got off is connected with tube coupling, controls cable 13 and can control thrustor (not shown) action so that removes pipe
Joint 9 separates with not removing tube coupling 11, then starts crane gear, makes tube coupling emerge.
Certainly, foregoing is only presently preferred embodiments of the present invention, it is impossible to be considered for limiting inventive embodiment scope.
The present invention is also not limited to the example above, and those skilled in the art are made in the essential scope of the present invention
Impartial change and improvement etc., all should belong to patent covering scope of the present invention.
Claims (7)
1. an immersed tube tunnel tube coupling method for dismounting, it is characterised in that: include install steel seal up a door step, end thrust section remove step
Rapid and tunnel tube coupling removes step；
Steel is installed seal up a door step, is included in the two ends of each section of tube coupling of immersed tube tunnel and steel is installed seals up a door, mounted steel is sealed up a door into
Row watertightness is tested, and thrustor is installed in the junction between the tube coupling in tunnel；
Thrust section in end removes step, including excavation end thrust section part, the foundation ditch of excavation is carried out slope retaining, by thrust
Section part cuts off certain length, the part cut off clearly is gone out construction area, opens pattern foundation pit supporting structure part；
Tunnel tube coupling removes step, including sealing of being sealed up a door by the steel in tube coupling to be removed, by the lifting rope of crane gear with to be removed
Tube coupling connects, and is connected with control system by the pipeline of thrustor, opens thrustor, when tube coupling to be removed takes off with remaining tube coupling
From rear, start crane gear, make tube coupling emerge.
Immersed tube tunnel tube coupling method for dismounting the most according to claim 1, it is characterised in that: thrustor is jack.
Immersed tube tunnel tube coupling method for dismounting the most according to claim 1, it is characterised in that: the foundation ditch of excavation is carried out side slope
The mode of supporting includes panel wall support pattern or bolt-spary supports mode.
Immersed tube tunnel tube coupling method for dismounting the most according to claim 1, it is characterised in that: by lifting rope and the pipe of crane gear
The step that joint connects includes tube coupling base foundation part to wash away space, will run through at the bottom of tube coupling from the lifting rope of crane gear drop down
Portion, is connected lifting rope with the suspension hook on crane gear.
Immersed tube tunnel tube coupling method for dismounting the most according to claim 1, it is characterised in that: set in the both sides of tube coupling to be removed
There is buoyancy tank.
Immersed tube tunnel tube coupling method for dismounting the most according to claim 1, it is characterised in that: steel is sealed up a door to be provided with and is filled into draining
Putting, feeding/discharging device controls to be connected with PLC control system.
Immersed tube tunnel tube coupling method for dismounting the most according to claim 5, it is characterised in that: buoyancy tank is provided with feeding/discharging device,
Feeding/discharging device controls to be connected with PLC control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610346083.9A CN105926679A (en) | 2016-05-23 | 2016-05-23 | Dismounting method for pipe joints of immersed tube tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610346083.9A CN105926679A (en) | 2016-05-23 | 2016-05-23 | Dismounting method for pipe joints of immersed tube tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105926679A true CN105926679A (en) | 2016-09-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610346083.9A Pending CN105926679A (en) | 2016-05-23 | 2016-05-23 | Dismounting method for pipe joints of immersed tube tunnel |
Country Status (1)
| Country | Link |
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| CN (1) | CN105926679A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106516021A (en) * | 2016-11-17 | 2017-03-22 | 中交第航务工程局有限公司 | Self-propelled carrying and installing all-in-one ship for underwater tunnel immersed tubes |
| CN110131502A (en) * | 2019-05-24 | 2019-08-16 | 郑州水务建筑工程股份有限公司 | A kind of lossless method for dismounting having pressure bell and spigot pipeline |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003166257A (en) * | 2001-11-30 | 2003-06-13 | Taisei Corp | Immersed tube for submarine tunnel, reaching method of shield machine to immersed tube and starting method of shield machine from immersed tube |
| CN1932160A (en) * | 2005-11-27 | 2007-03-21 | 苗德政 | Component assembling construction auxiliary apparatus in hydraulic engineering and using method thereof |
| CN103911997A (en) * | 2012-12-31 | 2014-07-09 | 中交第一航务工程局有限公司 | Pipe joint immersing ballast water system |
| CN104612180A (en) * | 2015-02-16 | 2015-05-13 | 中交一航局第二工程有限公司 | Immersed tube section separating device for seabed immersed tunnel |
-
2016
- 2016-05-23 CN CN201610346083.9A patent/CN105926679A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003166257A (en) * | 2001-11-30 | 2003-06-13 | Taisei Corp | Immersed tube for submarine tunnel, reaching method of shield machine to immersed tube and starting method of shield machine from immersed tube |
| CN1932160A (en) * | 2005-11-27 | 2007-03-21 | 苗德政 | Component assembling construction auxiliary apparatus in hydraulic engineering and using method thereof |
| CN103911997A (en) * | 2012-12-31 | 2014-07-09 | 中交第一航务工程局有限公司 | Pipe joint immersing ballast water system |
| CN104612180A (en) * | 2015-02-16 | 2015-05-13 | 中交一航局第二工程有限公司 | Immersed tube section separating device for seabed immersed tunnel |
Non-Patent Citations (1)
| Title |
|---|
| 周波: "沉管技术在航道疏浚施工中的应用", 《水运工程》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106516021A (en) * | 2016-11-17 | 2017-03-22 | 中交第航务工程局有限公司 | Self-propelled carrying and installing all-in-one ship for underwater tunnel immersed tubes |
| CN110131502A (en) * | 2019-05-24 | 2019-08-16 | 郑州水务建筑工程股份有限公司 | A kind of lossless method for dismounting having pressure bell and spigot pipeline |
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Application publication date: 20160907 |
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| RJ01 | Rejection of invention patent application after publication |