CN106087747A - Stride incremental launching construction method for correcting error - Google Patents
Stride incremental launching construction method for correcting error Download PDFInfo
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- CN106087747A CN106087747A CN201610429184.2A CN201610429184A CN106087747A CN 106087747 A CN106087747 A CN 106087747A CN 201610429184 A CN201610429184 A CN 201610429184A CN 106087747 A CN106087747 A CN 106087747A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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Abstract
A kind of stride incremental launching construction method for correcting error, two sides of component are respectively mounted correction platform, correction jack movable end on mounting platform connects idler wheel mechanism, at correction job position, described roller withstands component side and carries out operation of rectifying a deviation, component is applied the power contrary with component offset direction rectify a deviation, it is simultaneously attached to the displacement transducer on correction jack oil cylinder measure shift value in real time and send data to overall control center, when reaching correction stroke, overall control center sends instruction, and correction jack stops.Its advantage is to realize, with a turn-key system, multiple pushing tow unit are carried out Three dimensions control to realize continuous synchronization work, and control accuracy is high, reduces labor intensity, reduces human cost；Compact conformation, simple, easy disassembling, low cost, work space is little；Conventional tractive manner can be overcome can only to advance the shortcoming that can not retreat until completion after equipment once mounting；There is dynamic correcting function, can rectify a deviation during advancing in time.
Description
Technical field
The present invention relates to engineering construction machinery technical field, particularly to a kind of for large-scale component integral translation
Stride incremental launching construction method for correcting error.
Background technology
Successively incremeantal launching method technology is applied in the translation construction of large-scale component the most more and more widely.Structure for large span
In bridge steel box girder incremental launching construction, existing construction method typically uses successively incremeantal launching method or the way dragged, and needs steel case
Beam or beams of concrete external tendon carry out temperature pier, form bridge and release；The form of employing steel strand wires traction, every pushing tow one section,
Steel strand wires need to be reinstalled.The method working procedure is loaded down with trivial details, and cost is high, and can only advance and can not retreat, and repeatedly starts simultaneously
Horizontal thrust or pulling force are unfavorable to the force status of flexible pier.Authorization Notice No. is the disclosure of the invention one of CN 201678949 U
Plant walking type pushing device, including sliding case, slideway, translation jack, jack and correction jack assembly；Sliding case is by sliding
Box main body unit and the sliding box main body connector composition connecting sliding box main body unit, between sliding box main body unit, slide box main body list
It is flexibly connected by bolt between unit and sliding box main body connector and between each sliding box main body connector；Slideway is by slideway main body
Unit, slideway main body connector form, between slideway main unit, between slideway main unit and slideway main body connector, respectively
It is flexibly connected by bolt between slideway main body connector；Sliding case is integrally placed on slideway, in up-down structure, and jack
In the jack mounting cylinder being mounted on slideway, translate the translation jack peace that jack is mounted on slideway
On dress plate, on the correction jack installing rack that correction jack assembly is mounted on slideway, this device is very heavy by translation
Top, the alternation of jack realize walking pushing tow, it is not necessary to steel box-girder or beams of concrete external tendon are faced
Shi Jiagu, is also not required to use steel strand wires.But it has following defects that 1, the structure of slideway, sliding case is complicated and volume is big, weight
Weight, difficulty of processing is big, and cost is high, and required work space is big.2, each pushing tow unit needs 4 jacks and 4 pushing tows thousand
Jin top, not only equipment cost is high, and required work and accommodation space are big, it is impossible to realizing I-beam and bolt splicing construction
Component pushing tow.
Summary of the invention
It is an object of the invention to provide a kind of system simple in construction, work space is little, low cost, and easy construction, speed are fast
Stride incremental launching construction method for correcting error.
The solution of the present invention is such that
A kind of stride incremental launching construction method for correcting error, including step:
(1), pushing tow system setting steps: include the sons such as overall control center, power set, lowering or hoisting gear, thrustor, deviation correcting device
System, each subsystem is by high-pressure oil pipe, data transmission cable and controls element, and described overall control center is responsible for whole system work
Commander and control, be provided with electric cabinet, computer (or touch screen), PLC control unit, converter, analog acquisition module, pressure
Force transducer, displacement transducer, pressure switch；Power set include n platform hydraulic power unit, and hydraulic power unit includes fuel tank, frequency conversion
Motor, the unit radial plunger displacement pump of many mouthfuls of multiple pressure outputs and control valve group, control valve group includes and unit radial plungers pump plunger
The solenoid directional control valve that matches, overflow valve；Lowering or hoisting gear includes m platform jack, is arranged on jack piston
Bulb flat, the fishback being arranged on bulb flat and backing plate, the displacement transducer being arranged on jack oil cylinder；Pushing tow fills
Put the displacement biography including m platform level jack, being arranged on the sliding case bottom level jack, be arranged on level jack oil cylinder
Sensor；Every suit lowering or hoisting gear and a set of thrustor one pushing tow unit of composition；Described deviation correcting device is responsible for when component is on top
Producing work for correction during deviation during pushing away, it includes m platform correction jack, is arranged on the rolling of very heavy piston tip of rectifying a deviation
Wheel, the displacement transducer being arranged on correction jack oil cylinder；
(2), pushing tow parameter setting step: arrange at Master Control Center: horizontal pushing tow shift standards value, jacking shift standards value, structure
The offset direction standard value of part, jack piston displacement difference standard value, horizontal pushing tow jack piston displacement difference standard value；
(3), pushing tow state modulator strategy: measure in real time the horizontal pushing tow value of each pushing tow unit platforms, jacking value, component
Offset direction value, is compared the parameter measured in real time by the parameter of Master Control Center with setting, when:
During jacking, when the difference of the piston displacement value of wantonly two jacks is more than jack piston displacement difference standard value
Time, Master Control Center sends instruction, the electromagnetic switch valve events of the jack that command displacement value is big, stops this jack fuel feeding,
This jack quits work and waits, and the little jack of shift value works on, until the difference of shift value is less than jacking thousand
Jin top piston displacement difference standard value, the jack of stopping restarts work, so can ensure the same of each jack
Step property.The jacking value of any jack i.e. quits work after reaching jacking shift standards value, and is not reaching to jacking displacement
Working on of standard value, until whole jack jacking values i.e. complete a stroke after all reaching jacking shift standards value
Jacking, and start horizontal pushing tow；
During pushing tow, when the difference of the piston displacement value of wantonly two horizontal pushing tow jack is more than horizontal pushing tow jack piston displacement difference
During standard value, Master Control Center sends instruction, the electromagnetic switch valve events of the jack that command displacement value is big, stops this jack
Fuel feeding, this jack quits work and waits, and the little jack of shift value works on, until the difference of shift value is less than water
Flat-top pushes away jack piston displacement difference standard value, and the horizontal pushing tow jack of stopping restarts work, so can ensure each water
Flat-top pushes away the synchronicity of jack；The pushing tow value of any horizontal pushing tow jack i.e. stops work after reaching pushing tow shift standards value
Make, and be not reaching to working on of pushing tow shift standards value, until whole horizontal pushing tow jack pushing tow values all reach pushing tow
I.e. complete the pushing tow of a stroke after shift standards value, start the beam that falls；Component moves offset direction value beyond offset direction standard
Value, Master Control Center sends instruction to the deviation correcting device of offset direction, and the power that component is applied offset direction contrary is rectified a deviation, structure
Part moves offset direction value when being returned to offset direction standard value, and Master Control Center sends stopping correction instruction, stops correction operation.
(4) (4), correction are installed and rate-determining steps: two sides of component are respectively mounted correction platform, and platform is provided with
Correction reaction frame, as the counter-force fulcrum of correction jack, between correction reaction frame and correction jack, can set as required
Putting movable steel backing plate, position before and after convenient adjustment correction jack, to adapt to different girder steel width.Correction jack activity
End connection has idler wheel mechanism, and the rotating direction of the roller of this idler wheel mechanism is consistent with component moving direction, at correction job position,
Described roller withstands component side and carries out operation of rectifying a deviation, and component is applied the power contrary with component offset direction and rectifies a deviation, with
Time be arranged on the displacement transducer on correction jack oil cylinder and measure shift value in real time and send data to overall control center, when reaching
During to correction stroke, overall control center sends instruction, and correction jack stops.
Further technical scheme also includes: splice plate set-up procedure: this step is that lifting jack is provided with comb
Tooth plate, fishback top is supported on the bottom of component by backing plate, and wherein fishback top is provided with recessed along component moving direction
Groove, the width of this groove is more than the width of member bottom section ridge, when needing splice plate position, removes backing plate, and fishback is straight
Connecing bearing carrier, the bolt of splice plate agrees with fishback fillister joint, thus ensures that smooth-going is passed through, by after again backing plate is put back to
On fishback.
Further: also to include the adjustment of Automatic Levelling and the flexible set-up procedure in direction: this step is very heavy in jacking
Top, top connects into the structure that sphere tongue and groove is connected or cambered surface tongue and groove connects with bulb flat so that bulb flat is able to along ball
Shape face swings, the adjustment of Automatic Levelling and the flexible adjustment in direction.
The invention have the advantage that
1, realize, with a turn-key system, multiple pushing tow unit are carried out Three dimensions control and realize continuous synchronization work, control accuracy
Height, reduces labor intensity, reduces human cost.
2, compact conformation, simple, easy disassembling, low cost, work space is little.
3, component need not be carried out temperature pier, it is not necessary to use steel strand wires, can be until completion after equipment once mounting, nothing
Bridge construction expense must can be saved because of steel strand wires length midway disassemblerassembler not.
4, device systems by slide surface by changing between incremental launching device and slide plate bottom box beam, vertical lifting jack simultaneously
Ball head device is installed, can automatic centering avoid the damage bottom box beam and jack lateral force, bridge pier during pushing tow simultaneously
Not by horizontal loading, girder and bridge pier, all without damage, make structure guarantee safety during pushing tow.
5, there is dynamic correcting function, can rectify a deviation during advancing in time, keep the straight line of component to greatest extent
Motion, it is to avoid component runs unstability, thus ensures that the gradient of box beam, full-bridge are linear.
6, conventional tractive manner is overcome can only to advance the shortcoming that can not retreat.
7, extensibility is strong, and versatility is high: actual according to engineering, increases by pumping plant and jack quantity are increased or decreased
Add deduct few pushing tow unit, thus meets different spans, the engineering construction needs of different tonnage.
8, run into element joints when pushing tow or other situation still can carry out incremental launching construction.
Accompanying drawing explanation
Fig. 1 is the walking pushing tow system control network figure of the present invention.
Fig. 2 is that the walking pushing tow system of the present invention installs connection figure.
Fig. 3 is pushing tow cell schematics of the present invention
Fig. 4 is the deviation correcting device front view of the present invention
Fig. 5 is the deviation correcting device top view of the present invention
Fig. 6 is the bulb flat structural representation of the present invention
Fig. 7 is the left view of Fig. 6
Fig. 8 is the fishback structural representation of the present invention
Fig. 9 is the B direction view of Fig. 8
Figure 10 is the A direction view of Fig. 8
Figure 11 is the splice plate operating diagram excessively of the present invention
Figure 12 is the present invention multiple pushing tow unit layout drawings when implementing
In figure, reference is:.
In figure, reference is: A. lowering or hoisting gear, B. thrustor, C. deviation correcting device, D. component, and E. deviation correcting device is pacified
Assembling platform, F. pushing tow unit mounting platform, G. falls boom support, 1. jack, 2. bulb flat, 3. fishback, 4. pad
Plate, 5. displacement transducer a, the most horizontal pushing tow jack, 7. displacement transducer b, 8. slide case, 9. reaction frame, 10. ball pivot device,
11. steel cushion blocks, 12. rollers, 13. roller mounting brackets, 14. displacement transducer c, 15. correction jack, 16. movable steel pads
Plate, 17. correction reaction frames, 18. jack pistons, 19. bolts, 20. level jack pistons, 21. splice plates, 22. spell
Fishplate bar bolt, 23. grooves.
Detailed description of the invention
The present invention includes step:
(1), pushing tow system setting steps: include the sons such as overall control center, power set, lowering or hoisting gear, thrustor, deviation correcting device
System, each subsystem is by high-pressure oil pipe, data transmission cable and controls element, and described overall control center is responsible for whole system work
Commander and control, be provided with electric cabinet, computer (or touch screen), PLC control unit, converter, analog acquisition module, pressure
Force transducer, displacement transducer, pressure switch；Power set include n platform hydraulic power unit, and hydraulic power unit includes fuel tank, frequency conversion
Motor, the unit radial plunger displacement pump of many mouthfuls of multiple pressure outputs and control valve group, control valve group includes and unit radial plungers pump plunger
The solenoid directional control valve that matches, overflow valve；Lowering or hoisting gear includes m platform jack, is arranged on jack piston
Bulb flat, the fishback being arranged on bulb flat and backing plate, the displacement transducer being arranged on jack oil cylinder；Pushing tow fills
Put the displacement biography including m platform level jack, being arranged on the sliding case bottom level jack, be arranged on level jack oil cylinder
Sensor etc..Every suit lowering or hoisting gear and a set of thrustor one pushing tow unit of composition；One pumping plant can control multiple pushing tow list
Unit's (depending on unit plunger displacement pump quantity of pumping station layout).Described deviation correcting device is responsible for producing deviation during pushing tow when component
Time work for correction, it include m platform correction jack, the roller being arranged on very heavy piston tip of rectifying a deviation, be arranged on correction very heavy
Displacement transducer on the oil cylinder of top；
(2), pushing tow parameter setting step: arrange at Master Control Center: horizontal pushing tow shift standards value, jacking shift standards value, structure
The offset direction standard value of part, jack piston displacement difference standard value, horizontal pushing tow jack piston displacement difference standard value；
(3), pushing tow state modulator strategy: measure in real time the horizontal pushing tow value of each pushing tow unit platforms, jacking value, component
Offset direction value, is compared the parameter measured in real time by the parameter of Master Control Center with setting, when:
During jacking, when the difference of the piston displacement value of wantonly two jacks is more than jack piston displacement difference standard value
Time, Master Control Center sends instruction, the electromagnetic switch valve events of the jack that command displacement value is big, stops this jack fuel feeding,
This jack quits work and waits, and the little jack of shift value works on, until the difference of shift value is less than jacking thousand
Jin top piston displacement difference standard value, the jack of stopping restarts work, so can ensure the same of each jack
Step property.The jacking value of any jack i.e. quits work after reaching jacking shift standards value, and is not reaching to jacking displacement
Working on of standard value, until whole jack jacking values i.e. complete a stroke after all reaching jacking shift standards value
Jacking, and start horizontal pushing tow；
During pushing tow, when the difference of the piston displacement value of wantonly two horizontal pushing tow jack is more than horizontal pushing tow jack piston displacement difference
During standard value, Master Control Center sends instruction, the electromagnetic switch valve events of the jack that command displacement value is big, stops this jack
Fuel feeding, this jack quits work and waits, and the little jack of shift value works on, until the difference of shift value is less than water
Flat-top pushes away jack piston displacement difference standard value, and the horizontal pushing tow jack of stopping restarts work, so can ensure each water
Flat-top pushes away the synchronicity of jack.The pushing tow value of any horizontal pushing tow jack i.e. stops work after reaching pushing tow shift standards value
Make, and be not reaching to working on of pushing tow shift standards value, until whole horizontal pushing tow jack pushing tow values all reach pushing tow
I.e. complete the pushing tow of a stroke after shift standards value, start the beam that falls；
Component moves offset direction value and exceeds offset direction standard value, and Master Control Center sends finger to the deviation correcting device of offset direction
Order, rectifies a deviation to the power that component applying offset direction is contrary, and component moves offset direction value and is returned to offset direction standard value
Time, Master Control Center sends stopping correction instruction, stops correction operation.
Correction is installed and rate-determining steps: two sides of component are respectively mounted correction platform, platform is provided with correction anti-
Power frame, as the counter-force fulcrum of correction jack, between correction reaction frame and correction jack, can arrange activity as required
Billet, position before and after convenient adjustment correction jack, to adapt to different girder steel width, correction jack movable end connects
Having idler wheel mechanism, the rotating direction of the roller of this idler wheel mechanism is consistent with component moving direction, in correction job position, described rolling
Wheel withstands component side and carries out operation of rectifying a deviation, and component is applied the power contrary with component offset direction and rectifies a deviation, install simultaneously
Displacement transducer on correction jack oil cylinder is measured shift value in real time and sends data to overall control center, when reaching correction
During stroke, overall control center sends instruction, and correction jack stops.
Cross splice plate set-up procedure: this step is that lifting jack is provided with fishback, and backing plate is passed through at fishback top
Being supported on the bottom of component, wherein fishback top is provided with groove along component moving direction, and the width of this groove is more than component
The width of bottom ridge, when needing splice plate position, removes backing plate, the direct bearing carrier of fishback, the bolt of splice plate
Agree with fishback fillister joint, thus ensure that smooth-going is passed through.Again backing plate is put back on fishback after by.
The adjustment of Automatic Levelling and the flexible set-up procedure in direction: this step is on jack top with bulb flat even
It is connected into the structure that sphere tongue and groove connects or cambered surface tongue and groove connects so that bulb flat is able to swing along spherical, automatically looks for
Flat adjustment and the flexible adjustment in direction.
Below by an example, the present invention is described in detail:
The present embodiment is provided with overall control center, n hydraulic power unit, n × m pushing tow unit；Described pushing tow unit as in figure 2 it is shown,
It is provided with lowering or hoisting gear A, thrustor B, deviation correcting device C.N × m pushing tow unit is be symmetrically distributed in component axis two
Side, as shown in Figure 9.
Described lowering or hoisting gear A is provided with jack 1, bulb flat 2, fishback 3, backing plate 4, displacement transducer 5；Jacking
Jack 1 top and bulb flat 2 connect into sphere tongue and groove attachment structure, piston 18 top of wherein said jack 1
For concave spherical surface, as shown in Figure 6,7, its bottom is convex spherical to described bulb flat 2, matches with piston 18 concave spherical surface, described bulb flat 2
Centering is kept by being located at the bolt 19 in the center of circle so that bulb flat 2 is able to put along spherical with described jack piston 18
Dynamic, carry out the adjustment of Automatic Levelling and the flexible adjustment in direction；Described fishback 3 as shown in Fig. 7,8,9, described bulb flat 2 with
Fishback 3 uses tongue and groove attachment structure, carries out spacing from front, rear, left and right four direction to fishback 3, wherein fishback 3
Being placed in above bulb flat 2, bottom sets a convex surface, mutually embedding with the groove being located at bulb flat top, and fishback 3 top is moved along component
Direction is provided with two grooves, and the width of every groove is more than the width of member bottom section ridge；Described backing plate 4 is positioned over comb
On plate 3, when normal pushing tow, the direct bearing carrier of backing plate 4；When pushing tow run into element joints or other in the case of need to avoid
During the ridges such as connecting bolt, taking off backing plate 4, the direct bearing carrier of fishback 3, the ridge such as connecting bolt can be from fishback
The groove of end face passes through.
Described thrustor B is provided with horizontal pushing tow jack 6, displacement transducer 7, sliding case 8, the counter-force that is located on sliding case
Frame 9, the ball pivot device 10 being located between reaction frame and horizontal pushing tow jack.
Between the piston 20 and jack oil cylinder of level jack, a steel cushion block 11 is set, by bolt even during construction
Connect and make level jack 6 and jack 1 form an entirety, detachable after having constructed, convenient shipment.
Described deviation correcting device C as shown in Figure 3,4, be provided with correction jack 15, correction reaction frame 17, be located at correction very heavy
Movable steel backing plate 16 between top 15 and correction reaction frame 17, described correction jack 15 front end is provided with roller 12 and roller is installed
Support 13, oil cylinder is provided with displacement transducer 14.
The basic skills of the said system employing present invention is:
Utilize above-mentioned walking type pushing device, the method that component integral pushing is put in place, it comprises the following steps:
1, pushing tow system is installed: walking pushing tow system be assembled on the thrustor mounting platform of bridge pier；
2, walking pushing tow program is set: according to construction process and requirement, set relevant parameter at overall control center, set and opened
Dynamic equipment；
3, jacking girder: jack stretches cylinder, is lifted off boom support by girder, is automatically stopped, now leads when reaching setting stroke
Load beam is transferred to jack by the boom support that falls；
4, pushing tow girder: horizontal pushing tow jack starts and stretch cylinder automatically, promote jack together with girder in sliding case to
Front sliding, is automatically stopped to when setting stroke；
5, Luo Liang: jack contracting cylinder automatically, girder drops on boom support again, and now girder load is very heavy by jacking
Top transfer falls boom support after rise；
6, horizontal pushing tow jack backhaul: horizontal pushing tow jack contracting cylinder automatically, drives jack to return to initial position.
7, correction: as occurred deviation during horizontal pushing tow and reaching setting value, jack of rectifying a deviation starts automatically, stretches
Cylinder, applies the power contrary with girder offset direction by pair of rollers girder and rectifies a deviation.As girder degree changes, cause correction
When jack stroke cannot meet correction demand, plus movable pad between correction jack and correction reaction frame, adjustment is entangled
Position before and after jack partially.
8, cross splice plate: when pushing tow run into element joints or other in the case of need to avoid the ridges such as connecting bolt time,
Take off backing plate, the direct bearing carrier of fishback, by after again backing plate is put back on fishback.
Repeat 1-8 step, iterative cycles, until the translation of girder pushing tow is in place.
The present invention is i.e. applicable to the horizontal incremental launching construction of large-scale component (containing steel construction, concrete etc.).
During construction, after inputting construction parameter by the touch screen of Master Control Center, starting device, equipment is the most automatically by following step
Rapid work:
1, jacking girder: jack 1 stretches cylinder, is lifted off boom support G by girder D, is simultaneously attached to jack 1 oil
Displacement transducer 5 on cylinder is measured shift value in real time and sends data to overall control center, and jacking process bulb flat 2 can be adjusted automatically
Whole levelling.When jacking reaches to set stroke, overall control center sends instruction, and jack 1 stops, and now girder load is by falling
Jack 1 transferred to by boom support；
2, pushing tow girder: overall control center sends instruction, horizontal pushing tow jack 6 is automatically stretched cylinder, is promoted jack 1 together with ball
Shape plate 2, fishback 3, backing plate 4 and girder D, along slide plate 8 sliding forward, are simultaneously attached on horizontal pushing tow jack 6 oil cylinder
Displacement transducer 7 is measured shift value in real time and sends data to overall control center, and when reaching to set stroke, overall control center sends
Instruction, horizontal pushing tow jack 6 stops stretching cylinder；
3, Luo Liang: jack 1 contracting cylinder automatically, girder drops on boom support G again, and now girder load is by jacking
Jack 1 transfer falls boom support G after rise；
4, horizontal pushing tow jack backhaul: horizontal pushing tow jack 6 contracting cylinder automatically, drive jack 1 together with bulb flat 2,
Fishback 3, backing plate 4 return to initial position.
5, correction: as deviation occurred during horizontal pushing tow and reaching to set offset direction standard value, jack of rectifying a deviation
15 start automatically, stretch cylinder, by roller 12, girder D are applied the power contrary with girder offset direction and rectify a deviation, install simultaneously
Displacement transducer 14 on correction jack 15 oil cylinder is measured shift value in real time and sends data to overall control center, when reaching
During correction stroke, overall control center sends instruction, and correction jack 15 stops.
6, cross splice plate: when pushing tow run into splice plate 21 or other in the case of need to avoid the ridges such as connecting bolt time, take
Lower bolster 4, the direct bearing carrier of fishback 3, as shown in figure 11, the bolt 22 of splice plate agrees with the groove 23 of fishback, from
And ensure that smooth-going is passed through.Again backing plate is put back on fishback after by.
Constantly repeat the above steps, the walking pushing tow that can realize component puts in place.
Claims (3)
1. a stride incremental launching construction method for correcting error, it is characterised in that: include step:
(1), pushing tow system setting steps: include the sons such as overall control center, power set, lowering or hoisting gear, thrustor, deviation correcting device
System, each subsystem is by high-pressure oil pipe, data transmission cable and controls element, and described overall control center is responsible for whole system work
Commander and control, be provided with electric cabinet, computer (or touch screen), PLC control unit, converter, analog acquisition module, pressure
Force transducer, displacement transducer, pressure switch；Power set include n platform hydraulic power unit, and hydraulic power unit includes fuel tank, frequency conversion
Motor, the unit radial plunger displacement pump of many mouthfuls of multiple pressure outputs and control valve group, control valve group includes and unit radial plungers pump plunger
The solenoid directional control valve that matches, overflow valve；Lowering or hoisting gear includes m platform jack, is arranged on jack piston
Bulb flat, the fishback being arranged on bulb flat and backing plate, the displacement transducer being arranged on jack oil cylinder；Pushing tow fills
Put the displacement biography including m platform level jack, being arranged on the sliding case bottom level jack, be arranged on level jack oil cylinder
Sensor；Every suit lowering or hoisting gear and a set of thrustor one pushing tow unit of composition；Described deviation correcting device is responsible for when component is on top
Producing work for correction during deviation during pushing away, it includes m platform correction jack, is arranged on the rolling of very heavy piston tip of rectifying a deviation
Wheel, the displacement transducer being arranged on correction jack oil cylinder；
(2), pushing tow parameter setting step: arrange at Master Control Center: horizontal pushing tow shift standards value, jacking shift standards value, structure
The offset direction standard value of part, jack piston displacement difference standard value, horizontal pushing tow jack piston displacement difference standard value；
(3), pushing tow state modulator strategy: measure in real time the horizontal pushing tow value of each pushing tow unit platforms, jacking value, component
Offset direction value, is compared the parameter measured in real time by the parameter of Master Control Center with setting, when:
During jacking, when the difference of the piston displacement value of wantonly two jacks is more than jack piston displacement difference standard value
Time, Master Control Center sends instruction, the electromagnetic switch valve events of the jack that command displacement value is big, stops this jack fuel feeding,
This jack quits work and waits, and the little jack of shift value works on, until the difference of shift value is less than jacking thousand
Jin top piston displacement difference standard value, the jack of stopping restarts work, so can ensure the same of each jack
Step property；The jacking value of any jack i.e. quits work after reaching jacking shift standards value, and is not reaching to jacking displacement
Working on of standard value, until whole jack jacking values i.e. complete a stroke after all reaching jacking shift standards value
Jacking, and start horizontal pushing tow；
During pushing tow, when the difference of the piston displacement value of wantonly two horizontal pushing tow jack is more than horizontal pushing tow jack piston displacement difference
During standard value, Master Control Center sends instruction, the electromagnetic switch valve events of the jack that command displacement value is big, stops this jack
Fuel feeding, this jack quits work and waits, and the little jack of shift value works on, until the difference of shift value is less than water
Flat-top pushes away jack piston displacement difference standard value, and the horizontal pushing tow jack of stopping restarts work, so can ensure each water
Flat-top pushes away the synchronicity of jack；The pushing tow value of any horizontal pushing tow jack i.e. stops work after reaching pushing tow shift standards value
Make, and be not reaching to working on of pushing tow shift standards value, until whole horizontal pushing tow jack pushing tow values all reach pushing tow
I.e. complete the pushing tow of a stroke after shift standards value, start the beam that falls；
Component moves offset direction value and exceeds offset direction standard value, and Master Control Center sends finger to the deviation correcting device of offset direction
Order, rectifies a deviation to the power that component applying offset direction is contrary, and component moves offset direction value and is returned to offset direction standard value
Time, Master Control Center sends stopping correction instruction, stops correction operation；
Correction is installed and rate-determining steps: two sides of component are respectively mounted correction platform, and platform is provided with correction reaction frame
As the counter-force fulcrum of correction jack, between correction reaction frame and correction jack, movable steel pad can be set as required
Plate, position before and after convenient adjustment correction jack, to adapt to different girder steel width；Correction jack movable end connects rolling
Wheel mechanism, the rotating direction of the roller of this idler wheel mechanism is consistent with component moving direction, on correction job position, described roller top
Live component side and carry out operation of rectifying a deviation, component is applied the power contrary with component offset direction and rectifies a deviation, be simultaneously attached to entangle
Displacement transducer on jack cylinder partially is measured shift value in real time and sends data to overall control center, when reaching stroke of rectifying a deviation
Time, overall control center sends instruction, and correction jack stops.
Stride incremental launching construction method for correcting error the most according to claim 1, it is characterised in that: also included that splice plate adjusted step
Rapid: this step is that lifting jack is provided with fishback, and fishback top is supported on the bottom of component by backing plate, wherein combs
Tooth plate top is provided with groove along component moving direction, and the width of this groove is more than the width of member bottom section ridge, when needing
During splice plate position, removing backing plate, the direct bearing carrier of fishback, the bolt of splice plate agrees with fishback fillister joint, thus
Ensure that smooth-going is passed through, by after again backing plate is put back on fishback.
Stride incremental launching construction method for correcting error the most according to claim 1, it is characterised in that: also include the adjustment of Automatic Levelling
Flexible set-up procedure with direction: this step be connect into bulb flat on jack top sphere tongue and groove be connected or
The structure that cambered surface tongue and groove connects so that bulb flat is able to swing along spherical, the adjustment of Automatic Levelling and the flexible tune in direction
Whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610429184.2A CN106087747A (en) | 2016-06-17 | 2016-06-17 | Stride incremental launching construction method for correcting error |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610429184.2A CN106087747A (en) | 2016-06-17 | 2016-06-17 | Stride incremental launching construction method for correcting error |
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| CN106638322A (en) * | 2016-12-28 | 2017-05-10 | 海波重型工程科技股份有限公司 | Steel box beam pushing and deviation correcting method for walking type multiple-point continuous pushing technique |
| CN108004934A (en) * | 2017-12-25 | 2018-05-08 | 宋振辉 | Safety falls the multidirectional correction hydraulic device of beam self-locking and its application method |
| CN108560429A (en) * | 2017-09-18 | 2018-09-21 | 贵州路桥集团有限公司 | Stride thrustor and pushing method |
| CN109837836A (en) * | 2017-11-27 | 2019-06-04 | 广西南宁胜祺安科技开发有限公司 | Continuous Bridge incremental launching construction method for correcting error |
| CN109853581A (en) * | 2019-01-18 | 2019-06-07 | 苏州交通工程集团有限公司 | A kind of mechanism and its application method improving open trench tunnel foundation pit steel lattice column verticality qualification rate |
| CN110205424A (en) * | 2019-07-15 | 2019-09-06 | 中冶天工集团有限公司 | A kind of device and method of Blast Furnace Push maintenance digitlization correction |
| CN111441251A (en) * | 2020-04-03 | 2020-07-24 | 中铁大桥局集团第五工程有限公司 | Construction method for folding steel box girder striding over existing steel girder |
| CN112458923A (en) * | 2020-10-10 | 2021-03-09 | 中国铁工投资建设集团有限公司 | Pushing method |
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| CN109853581A (en) * | 2019-01-18 | 2019-06-07 | 苏州交通工程集团有限公司 | A kind of mechanism and its application method improving open trench tunnel foundation pit steel lattice column verticality qualification rate |
| CN110205424A (en) * | 2019-07-15 | 2019-09-06 | 中冶天工集团有限公司 | A kind of device and method of Blast Furnace Push maintenance digitlization correction |
| CN111441251A (en) * | 2020-04-03 | 2020-07-24 | 中铁大桥局集团第五工程有限公司 | Construction method for folding steel box girder striding over existing steel girder |
| CN112458923A (en) * | 2020-10-10 | 2021-03-09 | 中国铁工投资建设集团有限公司 | Pushing method |
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