CN106245467B - A kind of paving frame method for assembling board-like track structure - Google Patents

A kind of paving frame method for assembling board-like track structure Download PDF

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Publication number
CN106245467B
CN106245467B CN201610710428.4A CN201610710428A CN106245467B CN 106245467 B CN106245467 B CN 106245467B CN 201610710428 A CN201610710428 A CN 201610710428A CN 106245467 B CN106245467 B CN 106245467B
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track
plates
track plates
pedestal
viscoplasticity
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CN106245467A (en
Inventor
吴永芳
王国庆
刘锦辉
纪学伟
吴伟先
胡光敬
曹得志
吴善国
张宏波
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2/00—General structure of permanent way
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2204/00—Characteristics of the track and its foundations
    • E01B2204/06—Height or lateral adjustment means or positioning means for slabs, sleepers or rails
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2204/00—Characteristics of the track and its foundations
    • E01B2204/09—Ballastless systems

Abstract

The invention discloses a kind of paving frame method for assembling board-like track structure, step include structure track engineering measurement plane, vertical control network, pedestal reinforcing bar, pave construct reinforced concrete plinth or bituminous concrete pedestal, precast track plate, base-plates surface elevation scanning survey with control, track plates and pedestal assembly simulation, in base-plates surface construction lofting, the configuration of viscoplasticity bed course, track plates are in place, track plates spacer pin or positive stop lug boss are constructed；Track construction tissue is flexible, tracklaying base quantity can be reduced, it can rationally shorten and lay a railway track the duration and reduce the construction total lever factor pressure of rail transportation projects, special circumstances are easy to overwork under the premise of track engineering quality is ensured, have obvious Social benefit and economic benefit.

Description

A kind of paving frame method for assembling board-like track structure
Technical field
The present invention relates to railway traffic engineering technical field, including high-speed railway, state's iron, administrative region of a city railway and city rail to hand over Logical track structure, more particularly to a kind of paving frame method for assembling board-like track structure.
Background technology
Large conveying quantity, energy-conserving and environment-protective, safe and efficient rail vehicle transportation, track are the bases of transporting equipment, and track is direct Bear train load and guide train operation, track structure there must be enough strength and stabilities.Track paving frame is that track is handed over One of key link of logical engineering construction, track engineering go into operation and the logical node destination with milestone significance of rail, start to lay a railway track Indicate that urban rail transit construction has achieved initial success, station, section civil engineering each " point " will be by forming a connecting link Track engineering be concatenated into " line ", rail is logical be both rail transport basis and the precondition of follow-up trackside erection of equipment.Pin To different route laying modes, realize that the logical bottleneck of underground cable rail or influence factor are most, not only track laying space It is narrow and small, sighting condition is poor, and track paving frame is limited by tracklaying base and continuously passed through for each station along starting point and running tunnel It is logical.The transport of the rail material such as the section of track, reinforcing bar, concrete and the template of assembling and the section of track are completed during cast-in-place solid concrete roabed in tracklaying base Accurate adjustment, reinforcing bar colligation, model sheetinstallat and concreting in place etc. are completed in narrow and small tunnel space.It is this traditional inverse Practice track construction engineering method, the labor intensity of its cast-in-place railway roadbed is big, and the link for influenceing track construction progress is more.Even if using prefabricated Track plates, although constructing railway roadbed without cast-in-place concrete, self-compacting concrete or CA mortars are filled between plate and pedestal Belong to contrary sequence method track construction engineering method together, be equally limited by tunnel filler traffic condition and filler mobility with it is fast The requirement of speed solidification.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of board-like track structure of assembling in view of the shortcomings of the prior art And its paving frame method.
Technical scheme is as follows：
One kind assembles board-like track structure, including rail 1, fastener 2, track plates 3, viscoplasticity bed course 4, pedestal 5, track base Plinth 6, separation layer 7, spacer pin 8, pedestal 5 are located on track foundation 6, and viscoplasticity bed course 4 is between track plates 3 and pedestal 5, rail On guidance tape 3 leveling layer is poured without after；Structures are set in the both sides of track plates 3, the structures include setting gutter or concrete Filling is concordant with track plates 3, and separation layer 7 is set between track plates 3 and above-mentioned structures；Track plates 3, viscoplasticity bed course 4, base Seat 5, track foundation 6 are between each other dismountable assembling structure, and be not fixed together non-removable structure, track plates 3, The mutual slip between three is prevented by the frictional resistance and spacer pin 8 of viscoplasticity bed course 4 between viscoplasticity bed course 4, pedestal 5.
The board-like track structure of described assembling, surface elevation is constructed on track foundation 6 and meets that the assembly precision of track plates 3 will The pedestal 5 asked, fluting sets gutter or does not set gutter on pedestal 5；Accordingly, when fluting sets gutter on pedestal 5, The region arrangement viscoplasticity bed course 4 in gutter is not provided with base-plates surface, base-plates surface can completely spread viscoplasticity when not setting gutter Bed course 4, track plates 3 are placed on viscoplasticity bed course 4, and rail 1 is fixed using fastener 2 on the track plates 3 of accurate adjustment.
The board-like track structure of described assembling, the flat shape of track plates 3 is rectangle, using Integral plate type or frame plate Formula, Integral plate type are solid slab, and board-like framework is perforated panel, and upper surface sets track with sleeper spacing, and remaining region is flat Face or plate center set strip boss, or preserved signal equipment or on-line monitoring equipment mounting condition and wire casing；Lower surface is Plane sets boss or concave surface as position limiting structure with concavo-convex match of pedestal；The both sides of track plates 3 are symmetrical structure, can be vertical plane, Or inclined-plane, to better adapt to circular tunnel or solve fabric swatch conflict caused by limit is invaded in tunnel skew.
The board-like track structure of described assembling, there are 2~3 on track plates 3 through circular hole installation spacer pin 8, installing The position of spacer pin 8 can drill pedestal 5, set stiffener and steel plate around hole in pedestal.
The board-like track structure of described assembling, positive stop lug boss is set or divided into track plates at track plates both ends or both sides and is put The limit configuration of male-female engagement between seat surface.
The board-like track structure of described assembling, the nylon jacket of the pre-buried special installation measuring prism in the upper surface of precast track plate 3 Pipe, it can also borrow the nylon sleeve of rail fastening.
The board-like track structure of described assembling, the mark of centering when track plates center line is provided with track slab pavement.
The board-like track structure of described assembling, track plates upper surface are provided with used when 4 track plates liftings and laying Suspension centre 9.
A kind of paving frame method for assembling board-like track structure, comprises the following steps：
Step 1：Build track engineering measurement plane, vertical control network
Measurement elevation system uses National Height Datum 1985 or other elevation systems, and horizontal control survey uses same Individual GPS basic planes control net, by exploration control net, construction control network and operation maintenance control net unification, lay the nets of CP III, bag Include repetition measurement and check the precision of control point of CP III, produce the coordinate data at the accurate measurement control points of CP III；
Step 2：Pedestal reinforcing bar
Net is controlled to carry out basement construction setting-out using CP III on the track foundation of acceptance(check), by tracklaying base colligation Steel reinforcement cage or hoisting steel mesh piece transport the tunnel floor for meeting design requirement, roadbed or bridge floor and laid, and in pedestal steel The muscle construction stage sets the built-in fitting of track dental lamina limit structure simultaneously；
Step 3：Pave and construct reinforced concrete plinth or bituminous concrete pedestal
Reinforced concrete plinth or bituminous concrete pedestal are constructed using the paver measured and programming numerical control is integral is cast-in-place； After the aided process such as installation pedestal template and movement joint, complete cast-in-place concrete make firm by ramming and paving operation, one-shot forming Pedestal, its surface elevation meets the requirement of grade assembly precision；
Step 4：Precast track plate
Pre-stress rail plate completes deformed bar tensioning, concreting in factory using punching block, also can be commonly prefabricated Track plates, Liftable is transported to building site after health in 28 days expires；The numbering and by the support rail of upper surface before track plates warehouse Platform carries out the data file that flat scanning generates track plates following table surface evenness to track plates, wherein wrapping as measurement datum Include nominal thickness of slab, actual plate thickness is nominal thickness of slab to be superimposed with following table surface evenness, and nominal thickness of slab is track plates thickness of slab negative common difference The design load of scope；The inspection method as auxiliary is checked by hand, and the method that track plates following table surface evenness checks by hand is 2m Guiding ruler coordinate clearance gauge, it is allowed to maximum deviation be 3mm；Region with configuring stick viscoplasticity layer contacts, 1m guiding rulers coordinate plug The maximum deviation of chi is 1.5mm；
Step 5：Base-plates surface elevation scanning survey and control
The plane and longitudinal data and superrelation on curve input measurement of the line transfer of circuit supertronic and track construction G- Design are soft Part, rail, fastener are reduced after examining Alignment Design qualified and highly and at track is exported after track plates thickness of slab and reserved 3mm Base-plates surface is rule the altitude data of grid in length and breadth；Covered using wire center line coordinates as horizontal location reference measurement track plates Pedestal altitude data, compared with the output data of Survey Software, mark super more than the theoretical value 2mm of the actual elevation of pedestal region simultaneously Its elevation is reduced, pedestal elevation is met the requirement of ± 24 assembly precisions；The method that base-plates surface flatness checks by hand is 2m Guiding ruler coordinate clearance gauge, it is allowed to maximum deviation be 6mm；In the region of configuration stick viscoplasticity bed course, 1m guiding rulers coordinate clearance gauge Maximum deviation is 2mm；
Step 6：Track plates and pedestal assembly simulation
Pedestal altitude data according to track plates name thickness of slab, track plates lower surface flatness data file and plate covering Track plates displacement under file and track plates weight, bed course simulated behavior bogie load action, propose base-plates surface viscoelastic The allocation plan of property bed course；
Step 7：In base-plates surface construction lofting
Net is controlled to carry out track centerline coordinate points and track plates installation unwrapping wire in base-plates surface using CP III, and according to rail Guidance tape carries out the construction line-putting of bed course arrangement with pedestal assembly simulation result；
Step 8：The configuration of viscoplasticity bed course
, can single laying dress using the assembling pad of two kinds of thickness specifications of 5mm, 9mm and the polyester sheet of two kinds of thickness of 1mm, 2mm With pad, it can also be combined with polyester sheet and form viscoplasticity bed course, although the thickness of assembling pad is different, the vertical stiffness of unit area It is identical；The construction line-putting that bed course arrangement is pressed in base-plates surface configures viscoplasticity bed course；
Step 9：Track plates are in place
According to the result of track plates and pedestal assembly simulation, by track plates numbering and the end to end order of fabric swatch is hung along the line Fortune wooden handcart is attached to, then removes stage makeup and costume and is transported to plate paver, makes track plates in place；Borrow the nylon sleeve or special pre-buried of rail fastening Nylon sleeve installs measuring prism, coordinates with total powerstation, checks track Board position, and utilize programming Control system accurate adjustment track Plate；Or control the coordinate points of net measure track center line to input the control program of accurate adjustment car using CP III total powerstation, it can make Track plates are mounted directly, are accurate in place；
Step 10：Track plates spacer pin or positive stop lug boss construction
After track plates are accurate in place, spacer pin is installed in the track plates reserved base drilling through circular hole position, also may be used Option board end or plate side set positive stop lug boss, and the gap between plate and position limiting structure is filled using polyurethane material, or adopt With other elastomeric materials；
Step 11：Trackside gutter is filled and led up
Lay separation layer in accurate adjustment track plates both sides in place, make the gutter of plate and cast-in-place concrete or fill and lead up structure every From；After track laying, by concrete construction machinery mouldless shaping ditch, track plates both sides can not also set structures in gutter；
Step 12：Track accurate adjustment and gapless track
Gapless line or standard gauge are fixedly mounted on track plates by more contacting pieces, coarse adjustment and accurate adjustment rail, meet rail The requirement of road geometry flexibility index；Gapless track is formed using spark contact welding welded rails.
Assembling slab track paving frame method has following features：
1st, due to the use of viscoplasticity bed course and separation layer, the insulating properties of track greatly improved；
2nd, pre-stress rail plate avoids the occurrence of railway roadbed crackle, and repairing for track is improved while improving track engineering quality Property.Fully demonstrate energy-saving and environmental protection of the building trade BIM technology in track life cycle management innovation and application, green traffic true qualities；
3rd, compared with the track of reverse construction, there is 2~5dB vibration damping using the assembling slab track along practice construction Effect and the effect for reducing overhead route 2dB (A) above bridge structure low-frequency noise；
4th, labour is saved by factorial praluction, mechanized construction, reduced labor intensity；
5th, include the data file of all fronts track geometry ride comfort, put down in every piece of track plates lower surface of work progress structure Whole degrees of data file and corresponding pedestal altitude data file so that the maintenance of track enters measurement, processing and assembling Digital times；
6th, the same day can rail transport that track paving frame is completed；
7th, replaceable track plates or repairing are ftractureed brokenly because track foundation settles inequality within the skylight activity duration of operation The pedestal of damage, or even regulation tunnel floor seepage；
8th, track construction tissue is flexible, it is possible to reduce tracklaying base quantity, can rationally shorten and lay a railway track the duration and reduce rail The construction total lever factor pressure of road communication project, special circumstances are easy to overwork under the premise of track engineering quality is ensured, have obvious Social benefit and economic benefit.
Brief description of the drawings
Fig. 1 is the board-like track structure floor map of assembling of the present invention
Fig. 2 is the board-like track structure cross-sectional view (circular tunnel) of assembling of the present invention
Fig. 3 is the board-like track structure cross-sectional view (horse-shoe tunnel) of assembling of the present invention
Fig. 4 is the board-like track structure cross-sectional view (above-ground route) of assembling of the present invention
Fig. 5 is the board-like track structure cross-sectional view (overhead route) of assembling of the present invention
1 rail, 2 fasteners, 3 track plates, 4 viscoplasticity bed courses, 5 pedestals, 6 track foundations, 7 separation layers, 8 spacer pins, 9 liftings Point；
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.
The present invention relates to a kind of track structure system of precast track plate assembling, referring to Fig. 1 to Fig. 5, assembles slab track Structure, including rail 1, fastener 2, track plates 3, viscoplasticity bed course 4, pedestal 5, track foundation 6, separation layer 7, spacer pin 8, lifting Point 9, pedestal 5 is located on track foundation 6, and viscoplasticity bed course 4 pours tune on track plates 3 between track plates 3 and pedestal 5 without after Flat bed；Structures are set in the both sides of track plates 3, such as set gutter or Concrete Filled concordant with track plates 3, in track plates Separation layer 7 is set between 3 and above-mentioned structures.Track plates 3, viscoplasticity bed course 4, pedestal 5, track foundation 6 are between each other can The assembling structure of dismounting, be not fixed together non-removable structure, passes through between track plates 3, viscoplasticity bed course 4, pedestal 5 The frictional resistance and spacer pin 8 of viscoplasticity bed course 4 prevent the mutual slip between them.
Traditional prefabricated plate rail structure carries out leveling using last layer, and speed is implemented in limited tunnel space Slowly, the more difficult control of low precision, quality.In order to solve this problem, the board-like track structure of this assembling pours leveling layer after eliminating, changed And use the straight paving formula of machinery to lay a railway track, it is characterized in：First implement pedestal 5, viscoplasticity bed course 4 directly laid after accurate measurement positioning, Precast track plate 3 is installed again, railway roadbed is unit plate type structure along circuit longitudinal direction, and track plates are adjacent by spacer pin command displacement Transverse expansion joint is provided between track plates.
Wherein, the pedestal that surface elevation meets the assembly precision requirement of track plates 3 is constructed on the track foundation 6 of acceptance(check) 5, it can be slotted on pedestal 5 and gutter is set or does not set gutter.Accordingly, when fluting sets gutter on pedestal 5, in pedestal Surface is not provided with the region arrangement viscoplasticity bed course 4 in gutter, and base-plates surface can completely spread viscoplasticity bed course 4 when not setting gutter, Track plates 3 are placed on viscoplasticity bed course 4, and rail 1 is fixed using fastener 2 on the track plates 3 of accurate adjustment.
Wherein, the section configuration of track plates 3 is rectangle, and upper surface sets track with sleeper spacing, and remaining region is flat Face or plate center set strip boss, or preserved signal equipment or on-line monitoring equipment mounting condition and wire casing.Lower surface is Plane sets boss or concave surface as position limiting structure with concavo-convex match of pedestal.The both sides of track plates 3 are symmetrical structure, can be vertical plane, Or inclined-plane, fabric swatch conflict caused by better adapt to circular tunnel or solve tunnel skew (invading limit).
Wherein, there are 2~3 on track plates 3 through circular hole installation spacer pin 8, can be by base in the position of installation spacer pin 8 Seat 5 is drilled, and stiffener and steel plate are set in pedestal around hole.
Limit method is optionally set under positive stop lug boss or track plates at track plates both ends or both sides between seat surface The limit configuration of male-female engagement.
The nylon sleeve of the pre-buried special installation measuring prism in the upper surface of precast track plate 3, can also borrow rail fastening Nylon sleeve.
Wherein, the mark of centering when track plates center line is provided with track slab pavement.
Track plates upper surface is provided with the Heave Here 9 used when 4 track plates liftings and laying.
Assemble the committed step of board-like track construction：
Step 1：Build track engineering measurement plane, vertical control network
Measurement elevation system uses National Height Datum 1985 or other elevation systems (including independent elevation is started at), puts down Exploration control net, construction control network and operation maintenance are controlled net by face control measurement using same GPS basic planes control net Unification, the nets of CP III are laid, including repetition measurement checks the precision of control point of CP III, produces the coordinate data at the accurate measurement control points of CP III.
Step 2：Pedestal reinforcing bar
Net is controlled to carry out basement construction setting-out using CP III on the track foundation of acceptance(check), by tracklaying base colligation Steel reinforcement cage or hoisting steel mesh piece transport the tunnel floor for meeting design requirement, roadbed or bridge floor and laid, and in pedestal steel The muscle construction stage sets the built-in fitting of track dental lamina limit structure simultaneously.
Step 3：Pave and construct reinforced concrete plinth or bituminous concrete pedestal
Reinforced concrete plinth or bituminous concrete pedestal are constructed using the paver measured and programming numerical control is integral is cast-in-place. After the aided process such as installation pedestal template and movement joint, complete cast-in-place concrete make firm by ramming and paving operation, one-shot forming Pedestal, its surface elevation meets the requirement of grade assembly precision.
Step 4：Precast track plate
Pre-stress rail plate completes deformed bar tensioning, concreting in factory using punching block, also can be commonly prefabricated Track plates, Liftable is transported to building site after health in 28 days expires.The numbering and by the support rail of upper surface before track plates warehouse Platform carries out the data file that flat scanning generates track plates following table surface evenness to track plates, wherein wrapping as measurement datum Include nominal thickness of slab, actual plate thickness is nominal thickness of slab to be superimposed with following table surface evenness, and nominal thickness of slab is track plates thickness of slab negative common difference The design load of scope.The inspection method as auxiliary is checked by hand, and the method that track plates following table surface evenness checks by hand is 2m Guiding ruler coordinate clearance gauge, it is allowed to maximum deviation be 3mm；Region with configuring stick viscoplasticity layer contacts, 1m guiding rulers coordinate plug The maximum deviation of chi is 1.5mm.
Step 5：Base-plates surface elevation scanning survey and control
The plane and longitudinal data and superrelation on curve input measurement of the line transfer of circuit supertronic and track construction G- Design are soft Part, rail, fastener are reduced after examining Alignment Design qualified and highly and at track is exported after track plates thickness of slab and reserved 3mm Base-plates surface is rule the altitude data of grid in length and breadth.Covered using wire center line coordinates as horizontal location reference measurement track plates Pedestal altitude data, compared with the output data (theoretical value) of Survey Software, mark super more than the theoretical value 2mm of the actual elevation of pedestal Region and reduce its elevation, make pedestal elevation meet ± 24 assembly precisions requirement.Base-plates surface flatness checks by hand Method be 2m guiding rulers coordinate clearance gauge, it is allowed to maximum deviation be 6mm；In the region of configuration stick viscoplasticity bed course, 1m guiding rulers are matched somebody with somebody The maximum deviation for closing clearance gauge is 2mm.
Step 6：Track plates and pedestal assembly simulation
Pedestal altitude data according to track plates name thickness of slab, track plates lower surface flatness data file and plate covering Track plates displacement under file and track plates weight, bed course simulated behavior bogie load action, propose base-plates surface viscoelastic The allocation plan of property bed course.
Step 7：In base-plates surface construction lofting
Net is controlled to carry out track centerline coordinate points and track plates installation unwrapping wire in base-plates surface using CP III, and according to rail Guidance tape carries out the construction line-putting of bed course arrangement with pedestal assembly simulation result.
Step 8：The configuration of viscoplasticity bed course
, can single laying dress using the assembling pad of two kinds of thickness specifications of 5mm, 9mm and the polyester sheet of two kinds of thickness of 1mm, 2mm With pad, it can also be combined with polyester sheet and form viscoplasticity bed course, although the thickness of assembling pad is different, the vertical stiffness of unit area It is identical.The construction line-putting that bed course arrangement is pressed in base-plates surface configures viscoplasticity bed course.
Step 9：Track plates are in place
According to the result of track plates and pedestal assembly simulation, by track plates numbering and the end to end order of fabric swatch is hung along the line Fortune wooden handcart is attached to, then removes stage makeup and costume and is transported to plate paver, makes track plates in place.Borrow the nylon sleeve or special pre-buried of rail fastening Nylon sleeve installs measuring prism, coordinates with total powerstation, checks track Board position, and utilize programming Control system accurate adjustment track Plate.Or control the coordinate points of net measure track center line to input the control program of accurate adjustment car using CP III total powerstation, it can make Track plates are mounted directly, are accurate in place.
Step 10：Track plates spacer pin or positive stop lug boss construction
After track plates are accurate in place, spacer pin is installed in the track plates reserved base drilling through circular hole position, also may be used Option board end or plate side set positive stop lug boss, and the gap between plate and position limiting structure is filled using polyurethane material, or adopt With other elastomeric materials.
Step 11：Trackside gutter is filled and led up
Lay separation layer in accurate adjustment track plates both sides in place, make the gutter of plate and cast-in-place concrete or fill and lead up structure every From.After track laying, by concrete construction machinery mouldless shaping ditch, track plates both sides can not also set structures in gutter.
Step 12：Track accurate adjustment and gapless track
Gapless line or standard gauge are fixedly mounted on track plates by more contacting pieces, coarse adjustment and accurate adjustment rail, meet rail The requirement of road geometry flexibility index.Gapless track is formed using spark contact welding welded rails.
Assemble succinct board-like track structure, design sequencing, production plant, mechanization of building operation and IT application in management.It is logical Cross programming Control pedestal pave, cloth pad, fabric swatch, track plates adjustment and track geometry ride comfort, structure Track desigh construction, check and accept The shared database with operation maintenance.
It should be appreciated that for those of ordinary skills, can according to the above description be improved or converted, And all these modifications and variations should all belong to the protection domain of appended claims of the present invention.

Claims (1)

  1. A kind of 1. paving frame method for assembling board-like track structure, it is characterised in that assemble board-like track structure include rail (1), Fastener (2), track plates (3), viscoplasticity bed course (4), pedestal (5), track foundation (6), separation layer (7), spacer pin (8), pedestal (5) on track foundation (6), viscoplasticity bed course (4) is located between track plates (3) and pedestal (5), on track plates (3) without after Pour leveling layer；Structures are set in the both sides of track plates (3), the structures include setting gutter or Concrete Filled and track Plate (3) concordantly, sets separation layer (7) between track plates (3) and the structures；Track plates (3), viscoplasticity bed course (4), base Seat (5), track foundation (6) are between each other dismountable assembling structure, and be not fixed together non-removable structure, track Between plate (3), viscoplasticity bed course (4), pedestal (5) by the frictional resistance and spacer pin (8) of viscoplasticity bed course (4) prevent three it Between mutual slip；The paving frame method comprises the following steps：
    Step 1：Build track engineering measurement plane, vertical control network
    Measurement elevation system uses National Height Datum 1985, and horizontal control survey is controlled using same GPS basic planes Net, exploration is controlled into net, construction control network and operation maintenance control net unification, lays the nets of CP III, including repetition measurement check CP III is controlled System point precision, produce the coordinate data at the accurate measurement control points of CP III；
    Step 2：Pedestal reinforcing bar
    Net is controlled to carry out basement construction setting-out using CP III on the track foundation of acceptance(check), by the reinforcing bar of tracklaying base colligation Cage or hoisting steel mesh piece transport the tunnel floor for meeting design requirement, roadbed or bridge floor and laid, and are applied in pedestal reinforcing bar The work stage sets the built-in fitting of track dental lamina limit structure simultaneously；
    Step 3：Pave and construct reinforced concrete plinth or bituminous concrete pedestal
    Reinforced concrete plinth or bituminous concrete pedestal are constructed using the paver measured and programming numerical control is integral is cast-in-place；Pacifying After filling pedestal template and movement joint aided process, complete cast-in-place concrete make firm by ramming and paving operation, one-time formed pedestal, Its surface elevation meets the requirement of grade assembly precision；
    Step 4：Precast track plate
    Pre-stress rail plate completes deformed bar tensioning, concreting, or common pre-track in factory using punching block Plate, hoisting transportation is to building site after health in 28 days expires；Before track plates warehouse numbering and using the track of upper surface as Measurement datum, track plates are carried out with the data file of flat scanning generation track plates following table surface evenness, including name Thickness of slab, actual plate thickness is nominal thickness of slab to be superimposed with following table surface evenness, and nominal thickness of slab is track plates thickness of slab negative common difference scope Design load；The inspection method as auxiliary is checked by hand, and the method that track plates following table surface evenness checks by hand is that 2m guiding rulers are matched somebody with somebody Close clearance gauge, it is allowed to maximum deviation be 3mm；Region with configuring stick viscoplasticity layer contacts, 1m guiding rulers coordinate clearance gauge most Large deviation is 1.5mm；
    Step 5：Base-plates surface elevation scanning survey and control
    The plane and longitudinal data and superrelation on curve input measurement software of the line transfer of circuit supertronic and track construction G- Design, Rail, fastener are reduced after examining Alignment Design qualified and highly and at track exports pedestal after track plates thickness of slab and reserved 3mm Surface is rule the altitude data of grid in length and breadth；The pedestal covered using wire center line coordinates as horizontal location reference measurement track plates Altitude data, compared with the output data of Survey Software, mark super more than the theoretical value 2mm of the actual elevation of pedestal region and reduction Its elevation, pedestal elevation is set to meet the requirement of ± 24 assembly precisions；The method that base-plates surface flatness checks by hand is 2m guiding rulers Coordinate clearance gauge, it is allowed to maximum deviation be 6mm；In the region of configuration stick viscoplasticity bed course, 1m guiding rulers coordinate the maximum of clearance gauge Deviation is 2mm；
    Step 6：Track plates and pedestal assembly simulation
    Pedestal altitude data file according to track plates name thickness of slab, track plates lower surface flatness data file and plate covering And the track plates displacement under track plates weight, bed course simulated behavior bogie load action, propose base-plates surface viscoplasticity pad The allocation plan of layer；
    Step 7：In base-plates surface construction lofting
    Net is controlled to carry out track centerline coordinate points and track plates installation unwrapping wire in base-plates surface using CP III, and according to track plates The construction line-putting of bed course arrangement is carried out with pedestal assembly simulation result；
    Step 8：The configuration of viscoplasticity bed course
    Using the assembling pad of two kinds of thickness specifications of 5mm, 9mm and the polyester sheet of two kinds of thickness of 1mm, 2mm, single laying assembling pad, Or combined with polyester sheet and form viscoplasticity bed course, although the thickness of assembling pad is different, the vertical stiffness of unit area is identical； The construction line-putting that bed course arrangement is pressed in base-plates surface configures viscoplasticity bed course；
    Step 9：Track plates are in place
    According to the result of track plates and pedestal assembly simulation, by track plates numbering and the end to end order of fabric swatch is lifted into along the line Wooden handcart is transported, then removes stage makeup and costume and is transported to plate paver, makes track plates in place；Borrow the nylon sleeve of rail fastening or special pre-buried nylon Sleeve pipe installs measuring prism, coordinates with total powerstation, checks track Board position, and utilize programming Control system accurate adjustment track plates；Or Control the coordinate points of net measure track center line to input the control program of accurate adjustment car using CP III total powerstation, make track plates direct Install, be accurate in place；
    Step 10：Track plates spacer pin or positive stop lug boss construction
    After track plates are accurate in place, spacer pin, or selection are installed in the track plates reserved base drilling through circular hole position Plate end or plate side set positive stop lug boss, and the gap between plate and position limiting structure is filled using polyurethane material；
    Step 11：Trackside gutter is filled and led up
    Separation layer is laid in accurate adjustment track plates both sides in place, makes the gutter of plate and cast-in-place concrete or fill and lead up structure to isolate； After track laying, gutter does not set structures by concrete construction machinery mouldless shaping ditch, or in track plates both sides；
    Step 12：Track accurate adjustment and gapless track
    Gapless line or standard gauge are fixedly mounted on track plates by more contacting pieces, coarse adjustment and accurate adjustment rail, meet that track is several The requirement of what flexibility index；Gapless track is formed using spark contact welding welded rails.
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CN107489100A (en) * 2017-08-03 2017-12-19 中铁上海工程局集团有限公司 A kind of long sleeper rail of girder steel open bridge floors synthetic resin and its construction method
CN107663814A (en) * 2017-08-14 2018-02-06 中铁上海工程局集团华海工程有限公司 One kind be used for underground cable lay a railway track construct service channel at transition apparatus and its construction method
CN107401091B (en) * 2017-09-19 2023-08-18 北京市轨道交通建设管理有限公司 Assembled track structure and construction method thereof
CN107938440A (en) * 2017-12-07 2018-04-20 广西三维铁路轨道制造有限公司 A kind of method that 3D printing stacks shaping adjustment road bed surface absolute altitude
CN110485214A (en) * 2019-08-28 2019-11-22 吴永芳 A kind of prefabricated railway roadbed module of assembly digitalization and its production method, track
CN110700023A (en) * 2019-10-15 2020-01-17 中铁四局集团有限公司 Steel spring floating plate integral ballast bed construction method based on rail engineering
CN111593619A (en) * 2020-05-29 2020-08-28 中铁一局集团有限公司 Construction method of urban rail transit plate type ballast bed structure
CN111593618A (en) * 2020-05-29 2020-08-28 中铁一局集团有限公司 Construction method of plate type turnout structure of urban rail transit
CN111778790A (en) * 2020-06-30 2020-10-16 上海工程技术大学 Switch track-shifting construction method based on BIM technology
CN114687260B (en) * 2022-03-07 2024-02-13 中铁南方投资集团有限公司 Assembly type track construction method and assembly type track structure

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EP2468954A1 (en) * 2010-12-27 2012-06-27 Sonneville AG Method for manufacturing a ballastless trackway for rail vehicles with an recue route for street vehicles
CN103761401B (en) * 2014-02-14 2016-07-06 中铁第一勘察设计院集团有限公司 CRTS III type non-fragment orbit fabric swatch and construction integrated data processing method
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