CN107700544A - Off-lying sea immersed tube installation method - Google Patents
Off-lying sea immersed tube installation method Download PDFInfo
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- CN107700544A CN107700544A CN201710780696.8A CN201710780696A CN107700544A CN 107700544 A CN107700544 A CN 107700544A CN 201710780696 A CN201710780696 A CN 201710780696A CN 107700544 A CN107700544 A CN 107700544A
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- Prior art keywords
- tube coupling
- tube
- immersed tube
- immersed
- coupling
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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
- E02D29/073—Tunnels or shuttering therefor assembled from sections individually sunk onto, or laid on, the water-bed, e.g. in a preformed trench
-
- 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
- E02D29/16—Arrangement or construction of joints in foundation structures
Abstract
The invention discloses a kind of off-lying sea immersed tube installation method, including step A, sea bed to lay rubble ridge and flatten, and forms rubble bedding；B, prefabrication immersed tube tube coupling and first time fitting-out；C, handling tube coupling is hauled or loaded onto ship with ship to installation site, and to second of fitting-out of tube coupling；D, tube coupling sinking implantation aligns in rubble bedding, and with having installed immersed tube；E, tube coupling docks with having installed immersed tube watertight, and to engagement cavity draining；F, holing through survey tube coupling misalignment of axe, deviation is adjusted during more than design requirement to meeting design requirement；G, rubble bedding slip casting；H, tube coupling is backfilled, removes outfititem.With this method, because the installation quality of each section tube coupling during subsea tunnel construction directly influences the positioning of next immersed tube, have influence on that can seabed tunnel penetrate and can seabed tunnel reach design service life, this method clear principle, tube coupling simply accurately can be accurately installed in place by step, ensure that seabed immersed tube tunnel smoothly penetrates.
Description
Technical field
The present invention relates to Construction of Submarine Tunnel field, more particularly to a kind of off-lying sea immersed tube installation method.
Background technology
Immersed tunnelling method constructing tunnel, exactly partly latent refute or dry-docking in prefabricated tunnel caisson difference transportation by driving to making a reservation for
Position sinking docking, off-lying sea overlength immersed tube tunnel construction, job site operating condition is difficult, is faced with the wave and ocean current of complexity
Deng marine environmental conditions and meteorological condition.
How immersed tube tube coupling to be installed in place step by step, it is ensured that the installation accuracy of each section immersed tube, ensure seabed immersed tube tunnel
Road smoothly penetrates, the problem of turning into urgent need to resolve.
The content of the invention
It is an object of the invention to solve immersed tube tube coupling to be installed in place step by step, it is ensured that the installation accuracy of each section immersed tube,
Ensure that seabed immersed tube tunnel smoothly penetrates, a kind of the problem of turning into urgent need to resolve, there is provided off-lying sea immersed tube installation method.
In order to realize foregoing invention purpose, the invention provides following technical scheme：
A kind of off-lying sea immersed tube installation method, comprises the following steps：
A, sea bed is laid rubble ridge and flattened, and forms rubble bedding；
B, prefabrication immersed tube tube coupling and first time fitting-out；
C, tube coupling described in handling is hauled or loaded onto ship with ship to installation site, and to described second of fitting-out of tube coupling；
D, the tube coupling sinking implantation is in the rubble bedding, and is alignd with having installed immersed tube；
E, the tube coupling docks with having installed immersed tube watertight, and to engagement cavity draining；
F, tube coupling misalignment of axe described in holing through survey, deviation is adjusted during more than design requirement to meeting design requirement；
G, the rubble bedding slip casting；
H, the tube coupling is backfilled, removes outfititem, complete the tube coupling installation.
Wherein, the tube coupling is connected to the waterstop that one end end face for having installed immersed tube is provided with a circle closed circular, institute
State waterstop and sealing after immersed tube docks has been installed with described for the tube coupling, completely cut off seawater inside and outside pipe, the both ends of the tube coupling
Provided with end seal door, install after immersed tube docks, the end seal door on the tube coupling and described pacified with described in the tube coupling
Form the engagement cavity between the end seal door on dress immersed tube, the end seal door be provided with draining valve, flowmeter, intake valve,
Manhole door and pressure sensor etc., the tube coupling are provided with guide rod, drawing jack and suspension centre, and described installed sets on immersed tube
There are guide carriage, drawing bracket and positioning jack, the positioning jack is connected with displacement transducer and jack stroke passes
Sensor.The outfititem of the first time fitting-out includes the guide rod, the guide carriage, the suspension centre, drawing bracket, leads cable
Device, bollard etc.；The outfititem of second of fitting-out includes the drawing jack, and second of fitting-out removes waterstop
Protective cover；During first time fitting-out, 3 dipmeter fixed platforms are installed in the tube coupling inner bottom plating, is adjusted and pacified using inclinometer
Assembling platform is horizontal, is fixed using double nut and dipmeter is arranged on into platform in surface smear grease protection, second of fitting-out
On.In the step D, the tube coupling contacts the rubble bedding but still by handling appliance pulling force, using the tube coupling with it is described
The frictional force of rubble bedding, prevent the tube coupling from being caused to adjust transition and not easily-controllable by water currents when sub-sea location adjusts
System, and prevent the tube coupling from excessively being waved in adjustment using frictional force, overall put plays bed again after the completion of the step F.
Using immersed tube installation method in off-lying sea of the present invention, due to each section tube coupling during subsea tunnel construction
Installation quality directly influence the positioning of next immersed tube, have influence on that can seabed tunnel penetrate and can seabed tunnel reach
The tube coupling simply accurately can be accurately installed in place by design service life, this method clear principle, step, ensure that seabed sinks
Pipe tunnel smoothly penetrates.
Preferably, first carry out the step B and perform the step A again, or perform the step A and the step simultaneously
B。
Preferably, when performing the step D, the tube coupling buoyancy, anchoring system is controlled to control institute using ballast system
State tube coupling plan-position, sling system control posture in the tube coupling sinking speed and water, TT＆C system instruct the tube coupling with
Immersed tube alignment has been installed.
The ballast system includes the water tank in the tube coupling, and the ballast system is used for the tube coupling and risen
Float, deflect, mooring and ballast control being carried out during sinking, the pipe is controlled by the water filling into the water tank or draining
The buoyancy of section.
The anchoring system includes the anchor being connected with cable, and the cable connects the tube coupling, and the anchor is embedded in sea bed in advance,
The preferred HY-17 types of anchor are pulled into mud anchor.
The TT＆C system includes measurement tower or the underwater sonar observing and controlling system located at head end at the top of the tube coupling and tail end
System, the measurement tower is used for the tube coupling installation of shallower section of the depth of water, described to measure top of tower installation RTK gps antennas and prism,
Sea, GPS and prism normal work are exposed in the top of the measurement tower all the time during sinking, during sinking based on GPS
Control device is wanted, when gps signal appearance exception, total powerstation optics TT＆C system can be used to coordinate the prism to carry out observing and controlling, institute
State tube coupling in depressed place by the characteristic point measurement tower top gps antenna obtained by calibrating/prism and each characteristic point of the tube coupling it
Between the data that arrive of relative position relation and the dipmeter synchronous acquisition in the pipe tube coupling, using professional software pair
Above-mentioned data are resolved, and obtain the tube coupling feature point coordinates and spatial attitude, instruct the sinking of the tube coupling to dock construction；
The underwater sonar TT＆C system is used for the tube coupling installation of the depth of water deeper section, and the underwater sonar TT＆C system is in installation stem
Hold on the buoyancy tank of both sides, install 1 respectively and send by ripple device, be connected by data cable with the sinking TT＆C system PC on installation ship,
Send by GPSA and GPSB is provided with the top of ripple device, the plan-position sent by ripple device can be reflected in real time, immersed tube top surface is being installed
Two transponders are installed, the tube coupling top surface is provided with three transponders, during the tube coupling sinking, passes through the tube coupling top surface
Three transponders control spatial attitude of the tube coupling in water；By calculating the mutual of five transponders of immersed tube top surface
Position relationship, relative position between immersed tube and the tube coupling has been installed described in reflection, so as to control the tube coupling to it is described
Installation immersed tube is drawn close and docked.
Preferably, when performing the step D, accurately measured using institute's displacement sensors built in the drawing jack
Tube coupling left and right ends distance, using the drawing jack, the tube coupling tail end installation cable is aided in the pipe if necessary
Section position is transposed, and is away from the difference≤2cm for having installed the measured value at left and right sides of immersed tube tail end end face to the tube coupling end face
Only.
Preferably, when performing the step E, using drawing jack primary compression waterstop, the then engagement cavity row
Water conservancy crimps the waterstop with waterpower completely.
Preferably, waterstop described in primary compression comprises the following steps：
The first step, tube coupling described in the drawing jack drawing have installed immersed tube close to described, and the waterstop nose connects
Immersed tube end face has been installed described in touching, has completed first drawing, now the waterstop is uncompressed, pressure sensor value zero, described
Hydraulic pressure is identical inside and outside engagement cavity；
Second step, tube coupling described in the drawing jack drawing compresses, and after preliminary sealing requirement is met, the pressure passes
Sensor reading increases, and thus judges that the engagement cavity reaches watertight, completes secondary drawing, now because the engagement cavity space becomes
Small, its interior hydraulic pressure rises, and hydraulic pressure rises 2% and carries out the engagement cavity draining, and drainage speed is controlled in 0.5m3/ below min.
Preferably, after performing the first drawing, diver is confirmed between the waterstop nose and the tube coupling end
It is not mingled with foreign matter, then performs the secondary drawing.
Preferably, in order to prevent the waterstop from turning on one's side, the draining valve on immersed tube end seal door has been installed described in unlatching, it is few
Water in amount, the controlled discharge engagement cavity, reduces the engagement cavity pressure, helps the drawing jack at utmost
The compression waterstop.
Preferably, the engagement cavity drainage speed is monitored by flowmeter, while observes the pressure on the pressure sensor
Force value change, when the pressure sensor readings be reduced to reading is identical before secondary drawing when, stop the engagement cavity draining.
Preferably, the drawing jack drawing, the process of drainage and step-down are carried out again, until the very heavy top pull of the drawing
During conjunction untill the no longer significant change of the reading of the pressure sensor.
Preferably, after completing waterstop described in primary compression, the draining valve on immersed tube end seal door has been installed described in unlatching, will
Water in the engagement cavity is controllably discharged, and the waterstop is further pressed using the huge water pressure in the tube coupling free end
Contracting
Preferably, to ensure the waterstop homogeneous compaction, draining is slightly turned on the draining valve, controls the speed that discharges water initial stage
Spend, for the hydraulic pressure between the end seal door slowly after release, the waterstop basically reaches design decrement, opens the end seal afterwards
Intake valve on door, the water in the engagement cavity is discharged using the engagement cavity and the head difference installed in immersed tube,
Row finally is helped using draining pump, thoroughly discharges the water body between the end seal door, the waterstop is fully compressed, and reaches requirement
Water-stagnating effect.
Preferably, after the completion of the engagement cavity draining, the manhole door on the end seal door is opened, described in staff enters
Engagement cavity checks the waterstop compression situation, after confirmation meets the requirements, is arranged remaining water in the engagement cavity using stripping pump
Go out.
Preferably, when performing the step F, using be arranged on installed in immersed tube correction positioning jack pushing tow described in
Tube coupling butt end, the tube coupling tail end is set to rectify a deviation.
Preferably, the tail end correction comprises the following steps：
The first step, the displacement transducer of the positioning jack connection and jack stroke sensor are returned to zero；
Second step, the rear end axis deviation of measurement is scaled jack pushing tow displacement, controls the positioning very heavy
Top is according to the displacement pushing tow, and manhole door is closed on end seal door during pushing tow；
3rd step, pushing tow in place after, open the manhole door, survey crew carries out insertion survey again into the tube coupling
Amount, until deviation meets design requirement.
Preferably, after performing the step G, after the tube coupling settlement stability, then the step H is performed.
Preferably, when performing the step H, the tube coupling backfill comprises the following steps：
The first step, locking backfill is carried out to the tube coupling both sides, first carry out a locking backfill, then carry out tunneling boring and lock back
Fill out；
Second step, typically backfilled after the completion of the locking backfill；
3rd step, armour layer backfill is carried out after the completion of the general backfill.
Preferably, the locking backfill and the general backfill are adopted using special backfill ship construction, the armour layer backfill
Thrown with special backfill ship or barge and put the backfill of block stone.
In summary, by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
With immersed tube installation method in off-lying sea of the present invention, due to each section tube coupling during subsea tunnel construction
Installation quality directly influence the positioning of next immersed tube, have influence on that can seabed tunnel penetrate and can seabed tunnel reach
The tube coupling simply accurately can be accurately installed in place by design service life, this method clear principle, step, ensure that seabed sinks
Pipe tunnel smoothly penetrates；
Brief description of the drawings
Fig. 1 is tube coupling and has installed immersed tube docking structure schematic diagram；
Fig. 2 is the schematic flow sheet of immersed tube installation method in off-lying sea of the present invention.
Marked in figure：1- rubble beddings, 2- tube couplings, 21- drawing jack, 22- drawing brackets, 23- positioning jack, 3-
Engagement cavity, 4- waterstops, 5- end seal doors.
Embodiment
With reference to test example and embodiment, the present invention is described in further detail.But this should not be understood
Following embodiment is only limitted to for the scope of the above-mentioned theme of the present invention, it is all that this is belonged to based on the technology that present invention is realized
The scope of invention.
Embodiment
As shown in Figure 1-2, a kind of off-lying sea immersed tube installation method of the present invention, comprises the following steps：
A, sea bed is laid rubble ridge and flattened, and forms rubble bedding 1；
B, prefabrication immersed tube tube coupling 2 and first time fitting-out；
C, the tube coupling 2 described in ship haul or shipment handling arrives installation site, and to described second of fitting-out of tube coupling 2；
D, the sinking implantation of tube coupling 2 is in the rubble bedding 1, and is alignd with having installed immersed tube；
E, the tube coupling 2 docks with having installed immersed tube watertight, and to the draining of engagement cavity 3；
F, the misalignment of axe of tube coupling 2 described in holing through survey, deviation is adjusted during more than design requirement to meeting design requirement；
G, the slip casting of rubble bedding 1；
H, the tube coupling 2 is backfilled, removes outfititem, complete the tube coupling 2 and install.
Wherein, the tube coupling 2 is connected to the waterstop 4 that one end end face for having installed immersed tube is provided with a circle closed circular,
The waterstop 4 is used for the tube coupling 2 and has installed sealing after immersed tube docks with described, completely cuts off seawater inside and outside pipe, the tube coupling 2
Both ends are provided with end seal door 5, have been installed in the tube coupling 2 with described after immersed tube docks, the He of end seal door 5 on the tube coupling 2
The engagement cavity 3 is formed between the end seal door 5 installed on immersed tube, the end seal door 5 is provided with draining valve, flow
Meter, intake valve, manhole door and pressure sensor etc., the tube coupling 2 is provided with guide rod, drawing jack 21 and suspension centre, described
Immersed tube has been installed and has been connected with displacement provided with guide carriage, drawing bracket 22 and positioning jack 23, the positioning jack 23
Sensor and jack stroke sensor.The outfititem of the first time fitting-out includes the guide rod, the guide carriage, institute
State suspension centre, drawing bracket 22, chock, bollard etc.；The outfititem of second of fitting-out includes the drawing jack 21,
Second of fitting-out removes the protective cover of the waterstop 4；During first time fitting-out, install at 3 points in the inner bottom plating of tube coupling 2
Dipmeter fixed platform, mounting platform level is adjusted using inclinometer, is fixed using double nut and is protected in surface smear grease,
Dipmeter is arranged on platform during second of fitting-out.In the step D, the tube coupling 2 contact the rubble bedding 1 but still by
Handling appliance pulling force, using the frictional force of the tube coupling 2 and the rubble bedding 1, prevent the tube coupling 2 from being adjusted in sub-sea location
When by water currents caused to adjust transition and whard to control, and prevent the tube coupling 2 from excessively being floatd in adjustment using frictional force
Dynamic, overall put plays bed again after the completion of the step F.
As a preferred scheme of the present embodiment, first carry out the step B and perform the step A again, or hold simultaneously
The row step A and step B.
As a preferred scheme of the present embodiment, when performing the step D, the tube coupling is controlled using ballast system
2 buoyancy, anchoring system control the plan-position of tube coupling 2, sling system control posture in the sinking speed of tube coupling 2 and water,
TT＆C system instructs the tube coupling 2 to be alignd with having installed immersed tube.The ballast system includes the water in the tube coupling 2
Case, the ballast system be used for the tube coupling 2 in floating, deflect, mooring and ballast control carried out during sinking, pass through to
Water filling or draining control the buoyancy of the tube coupling 2 in the water tank.The anchoring system includes the anchor being connected with cable, institute
State cable and connect the tube coupling 2, the anchor is embedded in sea bed in advance, and the preferred HY-17 types of anchor are pulled into mud anchor.The TT＆C system
Including the measurement tower or underwater sonar TT＆C system located at the top head end of tube coupling 2 and tail end, the measurement tower is used for water
The deep shallower section of tube coupling 2 is installed, the measurement top of tower installation RTK gps antennas and prism, the measurement during sinking
Sea, GPS and prism normal work are exposed in the top of tower all the time, using GPS as main control device during sinking, when GPS believes
Number occur abnormal, total powerstation optics TT＆C system can be used to coordinate the prism to carry out observing and controlling, the tube coupling 2 pass through spy in depressed place
Relative position relation between sign point described measurement tower top gps antenna/2 each characteristic point of prism and the tube coupling obtained by calibrating with
And the data that the dipmeter synchronous acquisition in the pipe tube coupling 2 arrives, above-mentioned data are resolved using professional software,
The feature point coordinates of tube coupling 2 and spatial attitude are obtained, instructs the sinking of the tube coupling 2 to dock construction；The underwater sonar is surveyed
Control system is installed for the depth of water deeper section tube coupling 2, the underwater sonar TT＆C system installation stem end both sides buoyancy tank on,
Install 1 respectively to send by ripple device, be connected by data cable with the sinking TT＆C system PC on installation ship, send and pacified by the top of ripple device
Equipped with GPSA and GPSB, the plan-position sent by ripple device can be reflected in real time, two responses are installed having installed immersed tube top surface
Device, the top surface of tube coupling 2 are provided with three transponders, during 2 sinking of tube coupling, pass through 2 top surface of tube coupling, three transponders
Control spatial attitude of the tube coupling 2 in water；By calculating the mutual position relationship of five transponders of immersed tube top surface,
Relative position between immersed tube and the tube coupling 2 is installed, so as to control the tube coupling 2 to install immersed tube to described described in reflection
Draw close and dock.The left and right ends of tube coupling 2 are accurately measured using institute's displacement sensors built in the drawing jack 21
Distance, using the drawing jack 21, the tail end of the tube coupling 2 installation cable auxiliary is adjusted to the position of tube coupling 2 if necessary
Position, untill the end face of tube coupling 2 is away from the difference≤2cm for having installed the measured value at left and right sides of immersed tube tail end end face.
As a preferred scheme of the present embodiment, when performing the step E, stopped using the primary compression of drawing jack 21
Water band 4, the then draining of engagement cavity 3 crimp the waterstop 4 completely using waterpower.Waterstop 4 includes described in primary compression
Following steps：The first step, tube coupling 2 described in the drawing of drawing jack 21 have installed immersed tube, the nose of waterstop 4 close to described
Immersed tube end face has been installed described in point contact, has completed first drawing, now the waterstop 4 is uncompressed, pressure sensor value zero,
Hydraulic pressure is identical inside and outside the engagement cavity 3；Second step, tube coupling 2 described in the drawing of drawing jack 21 compress, when satisfaction is preliminary only
After water requirement, the pressure sensor readings increase, thus judge that the engagement cavity 3 reaches watertight, complete secondary drawing, now
Because the space of engagement cavity 3 diminishes, its interior hydraulic pressure rises, and hydraulic pressure rises 2% and carries out the draining of engagement cavity 3, draining speed
Degree control is in 0.5m3/ below min.After performing the first drawing, diver confirms the nose of waterstop 4 and the tube coupling 2
It is not mingled with foreign matter between end, then performs the secondary drawing.
In order to prevent the waterstop 4 from turning on one's side, the draining valve on immersed tube end seal door 5 is installed described in unlatching, it is a small amount of, controlled
The discharge engagement cavity 3 in water, reduce pressure in the engagement cavity 3, help the drawing jack 21 maximum
Compress the waterstop 4.The drainage speed of engagement cavity 3 is monitored by flowmeter, while observed on the pressure sensor
Pressure value changes, when the pressure sensor readings be reduced to reading is identical before secondary drawing when, stop the row of engagement cavity 3
Water.The drawing of drawing jack 21, the process of drainage and step-down are carried out again, described in when 21 drawing of drawing jack
Untill the no longer significant change of the reading of pressure sensor.After completing waterstop 4 described in primary compression, immersed tube has been installed described in unlatching
Draining valve on end seal door 5, the water in the engagement cavity 3 is controllably discharged, utilize the huge hydraulic pressure in the free end of tube coupling 2
Power makes the waterstop 4 further compress.To ensure the homogeneous compaction of waterstop 4, draining is slightly turned on the draining initial stage
Valve, control discharge water speed, and for the hydraulic pressure between the end seal door 5 slowly after release, the waterstop 4 basically reaches design decrement,
The intake valve on the end seal door 5 is opened afterwards, using the engagement cavity 3 and the head difference installed in immersed tube by described in
Water discharge in engagement cavity 3, finally helps row using draining pump, thoroughly discharges the water body between the end seal door 5, the waterstop 4
Fully compressed, reach the water-stagnating effect of requirement.After the completion of the draining of engagement cavity 3, the manhole on the end seal door 5 is opened
Door, will using stripping pump after staff checks that the compression situation of waterstop 4, confirmation meet the requirements into the engagement cavity 3
Remaining water discharge in the engagement cavity 3.
As a preferred scheme of the present embodiment, when performing the step F, entangling in immersed tube has been installed using being arranged on
The butt end of tube coupling 2 partially described in the positioning pushing tow of jack 23, makes the tail end of tube coupling 2 rectify a deviation.The tail end correction includes following step
Suddenly：The first step, the displacement transducer and jack stroke sensor that the positioning jack 23 is connected return to zero；Second step, will
The rear end axis deviation of measurement is scaled jack pushing tow displacement, controls the positioning jack 23 according to the displacement top
Push away, manhole door is closed on end seal door 5 during pushing tow；3rd step, pushing tow in place after, open the manhole door, survey crew enters
The tube coupling 2 carries out holing through survey again, until deviation meets design requirement.
As a preferred scheme of the present embodiment, after performing the step G, after the settlement stability of tube coupling 2, then hold
The row step H.When performing the step H, the backfill of tube coupling 2 comprises the following steps：The first step, to the both sides of tube coupling 2
Locking backfill is carried out, first carries out a locking backfill, then carries out tunneling boring locking backfill；Second step, after the completion of the locking backfill
Typically backfilled；3rd step, armour layer backfill is carried out after the completion of the general backfill.The locking backfill is typically returned with described
Fill out using special backfill ship construction, the armour layer backfill is thrown using special backfill ship or barge puts the backfill of block stone.
With immersed tube installation method in off-lying sea of the present invention, due to each section tube coupling during subsea tunnel construction
2 installation quality directly influences the positioning of next immersed tube, has influence on that can seabed tunnel penetrate and can seabed tunnel arrive
Up to design service life, this method clear principle, the tube coupling 2 simply accurately can be accurately installed in place by step, ensure sea
Bottom immersed tube tunnel smoothly penetrates.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (10)
1. a kind of off-lying sea immersed tube installation method, it is characterised in that comprise the following steps：
A, sea bed is laid rubble ridge and flattened, and forms rubble bedding (1)；
B, prefabrication immersed tube tube coupling (2) and first time fitting-out；
C, the tube coupling (2) described in ship haul or shipment handling arrives installation site, and to described second of fitting-out of tube coupling (2)；
D, tube coupling (2) the sinking implantation is in the rubble bedding (1), and is alignd with having installed immersed tube；
E, the tube coupling (2) is docked with having installed immersed tube watertight, and to engagement cavity (3) draining；
F, tube coupling described in holing through survey (2) misalignment of axe, deviation is adjusted during more than design requirement to meeting design requirement；
G, rubble bedding (1) slip casting；
H, the tube coupling (2) is backfilled, removes outfititem, complete the tube coupling (2) installation.
2. immersed tube installation method in off-lying sea according to claim 1, it is characterised in that when performing the step D, utilize ballast
Water system controls tube coupling (2) buoyancy, anchoring system to control tube coupling (2) plan-position, sling system to control the pipe
Posture, TT＆C system instruct the tube coupling (2) to be alignd with having installed immersed tube in section (2) sinking speed and water.
3. immersed tube installation method in off-lying sea according to claim 1, it is characterised in that when performing the step E, utilize drawing
Jack (21) primary compression waterstop (4), then engagement cavity (3) draining crimp the waterstop completely using waterpower
(4)。
4. immersed tube installation method in off-lying sea according to claim 3, it is characterised in that waterstop described in primary compression (4) wraps
Include following steps：
The first step, tube coupling (2) described in drawing jack (21) drawing have installed immersed tube, the waterstop (4) close to described
Immersed tube end face has been installed described in nose contact, has completed first drawing；
Second step, tube coupling (2) described in drawing jack (21) drawing compresses, and after preliminary sealing requirement is met, pressure passes
Sensor reading increases, and thus judges that the engagement cavity (3) reaches watertight, completes secondary drawing.
5. immersed tube installation method in off-lying sea according to claim 4, it is characterised in that after performing the first drawing, diving
Member confirms not to be mingled with foreign matter between waterstop (4) nose and the tube coupling (2) end, then performs the secondary drawing.
6. immersed tube installation method in off-lying sea according to claim 3, it is characterised in that complete waterstop described in primary compression
(4) after, the draining valve on immersed tube end seal door (5) has been installed described in unlatching, the water in the engagement cavity (3) has controllably been discharged,
The waterstop (4) is set further to compress using the huge water pressure in the tube coupling (2) free end.
7. immersed tube installation method in off-lying sea according to claim 6, it is characterised in that after the completion of engagement cavity (3) draining,
The manhole door on the end seal door (5) is opened, staff enters the engagement cavity (3) and checks waterstop (4) the compression feelings
Condition, after confirmation meets the requirements, remaining water in the engagement cavity (3) is discharged using stripping pump.
8. immersed tube installation method in off-lying sea according to claim 1, it is characterised in that when performing the step F, utilize setting
Installed the correction in immersed tube positioning jack (23) pushing tow described in tube coupling (2) butt end, entangle the tube coupling (2) tail end
Partially.
9. immersed tube installation method in off-lying sea according to claim 8, it is characterised in that tail end correction comprises the following steps：
The first step, the displacement transducer of positioning jack (23) connection and jack stroke sensor are returned to zero；
Second step, the rear end axis deviation of measurement is scaled jack pushing tow displacement, controls the positioning jack
(23) according to the displacement pushing tow, manhole door is closed on end seal door (5) during pushing tow；
3rd step, pushing tow in place after, open the manhole door, survey crew carries out holing through survey again into the tube coupling (2),
Until deviation meets design requirement.
10. the off-lying sea immersed tube installation method according to claim any one of 1-9, it is characterised in that perform the step G
When, tube coupling (2) backfill comprises the following steps：
The first step, locking backfill is carried out to the tube coupling (2) both sides, first carry out a locking backfill, then carry out tunneling boring and lock back
Fill out；
Second step, typically backfilled after the completion of the locking backfill；
3rd step, armour layer backfill is carried out after the completion of the general backfill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710780696.8A CN107700544A (en) | 2017-09-01 | 2017-09-01 | Off-lying sea immersed tube installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710780696.8A CN107700544A (en) | 2017-09-01 | 2017-09-01 | Off-lying sea immersed tube installation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107700544A true CN107700544A (en) | 2018-02-16 |
Family
ID=61171543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710780696.8A Pending CN107700544A (en) | 2017-09-01 | 2017-09-01 | Off-lying sea immersed tube installation method |
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| CN (1) | CN107700544A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108360384A (en) * | 2018-02-28 | 2018-08-03 | 浙江省交通规划设计研究院 | Underway push construction method |
| CN109343038A (en) * | 2018-09-30 | 2019-02-15 | 河海大学 | A kind of sonar detection bracket and caisson seam method for measurement |
| CN111305270A (en) * | 2020-03-19 | 2020-06-19 | 深圳云海探测科技有限公司 | Installation process of immersed tube for bridge |
| CN111323051A (en) * | 2020-03-19 | 2020-06-23 | 深圳云海探测科技有限公司 | Pipe joint calibration method based on measuring tower method |
| CN112923241A (en) * | 2021-01-25 | 2021-06-08 | 交通运输部广州打捞局 | Ballast pipeline system |
| CN114439042A (en) * | 2022-04-11 | 2022-05-06 | 中交第一航务工程局有限公司 | Immersed tube tunnel installation precision testing method |
| CN115162390A (en) * | 2022-06-30 | 2022-10-11 | 中海石油(中国)有限公司 | Oil-gas production wet caisson butt joint installation method under seabed mud surface |
| CN115653003A (en) * | 2022-12-28 | 2023-01-31 | 中交第一航务工程局有限公司 | Backstop system of jacking segment and jacking type final joint construction method |
| CN116625334A (en) * | 2023-07-20 | 2023-08-22 | 中交第一航务工程局有限公司 | Positioning method for sinking and butting sinking pipes |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108360384A (en) * | 2018-02-28 | 2018-08-03 | 浙江省交通规划设计研究院 | Underway push construction method |
| CN109343038A (en) * | 2018-09-30 | 2019-02-15 | 河海大学 | A kind of sonar detection bracket and caisson seam method for measurement |
| CN111305270A (en) * | 2020-03-19 | 2020-06-19 | 深圳云海探测科技有限公司 | Installation process of immersed tube for bridge |
| CN111323051A (en) * | 2020-03-19 | 2020-06-23 | 深圳云海探测科技有限公司 | Pipe joint calibration method based on measuring tower method |
| CN111323051B (en) * | 2020-03-19 | 2022-09-06 | 中交第一航务工程局有限公司 | Pipe joint calibration method based on measuring tower method |
| CN112923241A (en) * | 2021-01-25 | 2021-06-08 | 交通运输部广州打捞局 | Ballast pipeline system |
| CN114439042A (en) * | 2022-04-11 | 2022-05-06 | 中交第一航务工程局有限公司 | Immersed tube tunnel installation precision testing method |
| CN114439042B (en) * | 2022-04-11 | 2022-06-17 | 中交第一航务工程局有限公司 | Immersed tube tunnel installation precision testing method |
| CN115162390A (en) * | 2022-06-30 | 2022-10-11 | 中海石油(中国)有限公司 | Oil-gas production wet caisson butt joint installation method under seabed mud surface |
| CN115653003A (en) * | 2022-12-28 | 2023-01-31 | 中交第一航务工程局有限公司 | Backstop system of jacking segment and jacking type final joint construction method |
| CN116625334A (en) * | 2023-07-20 | 2023-08-22 | 中交第一航务工程局有限公司 | Positioning method for sinking and butting sinking pipes |
| CN116625334B (en) * | 2023-07-20 | 2023-09-19 | 中交第一航务工程局有限公司 | Positioning method for sinking and butting sinking pipes |
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