CN102619144A - Construction technology for prefabricated assembled steel spring floating slab track - Google Patents
Construction technology for prefabricated assembled steel spring floating slab track Download PDFInfo
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- CN102619144A CN102619144A CN2012101182563A CN201210118256A CN102619144A CN 102619144 A CN102619144 A CN 102619144A CN 2012101182563 A CN2012101182563 A CN 2012101182563A CN 201210118256 A CN201210118256 A CN 201210118256A CN 102619144 A CN102619144 A CN 102619144A
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Abstract
The invention discloses a construction technology for a prefabricated assembled steel spring floating slab track. The construction technology comprises the following steps of: 1, construction preparation; 2, floating slab ballast bed base construction: performing steel bar binding and concrete pouring construction on a floating slab ballast bed base, and previously transporting a plurality of floating slabs processed in advance to the ballast bed slab track-laying base in batch for storing at the same time; 3, prefabricated floating slab laying construction: performing laying and assembling construction on a plurality of prefabricated floating slabs transported to a ballast bed slab laying site from front to back; and 4, steel rail installation and track fine tuning: installing steel rails on the assembled prefabricated floating slabs, and performing accurate adjustment on the track. The technology is reasonable in design, easy to construct and high in construction efficiency; the construction quality is easy to guarantee; and the technology can effectively solve the problems of high construction difficulty, complex construction procedures, low construction speed and the like in the conventional floating slab track construction process.
Description
Technical field
The invention belongs to the floating plate track technical field of construction, especially relate to a kind of prefabricated assembled steel spring floating slab track construction technology.
Background technology
In the city railway train operation, because the vibration of each structure different frequency in the wheel rail system causes ambient environment vibrations and noise pollution.The concrete road bed board that the utilization of steel spring floating slab track has certain mass and rigidity carries out inertia motion on elastic body, isolate and vibration that the train operation that decays produces.With other damper rail structure relatively, the plate vibration isolating effect of floating is thorough, and technical advantage is obvious, and controlling for the vibration noise environment of urban track traffic provides effective technical means, has the location of special vibration isolation to have broad application prospects in urban track traffic.Tradition adopts " the shop method of loosing " to carry out the floating plate track construction; The scene needs colligation railway roadbed plate steel mesh reinforcement and a large amount of concrete pouring construction; Difficulty of construction is big, technical requirements is high, working procedure is complicated, and is difficult for quality control on construction, each operation continuous productive process; Parallel operations are less, and its construction speed is merely 6-10 rice/sky scope of operation.Though existing nowadays floating plate track is used by large-scale popularization, the floating plate track speed of application has become the Control Engineering time limit for project, influences the bottleneck of floating plate track extensive use, and its construction technology needs further to improve.
Summary of the invention
Technical problem to be solved by this invention is to above-mentioned deficiency of the prior art; A kind of prefabricated assembled steel spring floating slab track construction technology is provided; It is reasonable in design, construction sequence is simple and time saving and energy saving, efficiency of construction is high, construction quality is easy to guarantee, can solve effectively that the difficulty of construction that exists in the existing floating plate track work progress is big, technical requirements is high, working procedure is complicated and speed of application waits practical problem slowly.
For solving the problems of the technologies described above; The technical scheme that the present invention adopts is: a kind of prefabricated assembled steel spring floating slab track construction technology; It is characterized in that: the floating plate track of constructing comprises that the circuit bearing of trend of the plate railway roadbed substrate of floating, the edge floating plate track of constructing is laid on suprabasil a plurality of prefabricated plate and two rail that are installed on a plurality of said prefabricated plates of floating floated of the plate railway roadbed of floating from front to back; The said plate railway roadbed substrate of floating is a reinforced concrete structure, the said prefabricated floating ballast bed plate of plate for machining in advance of floating; The construction technology of the floating plate track of constructing may further comprise the steps:
When reinforcing bar binding and concrete pouring construction were carried out in the plate railway roadbed substrate of floating, a plurality of said prefabricated plate of floating that will machine in advance in advance was transported to the base storage of laying a railway track in batches;
The said prefabricated plate of floating comprises steel concrete road bed board and two groups of built-in vibration isolators that are laid in the said steel concrete railway roadbed intralamellar part left and right sides respectively; The quantity of included built-in vibration isolator is the outer side-lower that a plurality of and two groups of said built-in vibration isolators are laid in two one steel rails respectively in two groups of said built-in vibration isolators; Said built-in vibration isolator comprises outer sleeve one and the vibration isolation element one that is installed in the outer sleeve one, the corresponding sleeve installing hole one that leaves a plurality of confession outer sleeves one installations on the said steel concrete road bed board;
Step 301, steel concrete road bed board hang and move and Primary Location: adopt hanging device that the current steel concrete road bed board of laying the prefabricated plate of floating is hung and move in the plate railway roadbed substrate of floating; And, carry out Primary Location to hanging the said steel concrete road bed board that moves on to the position according to the measurement unwrapping wire result in the step 1;
Step 302, road bed board accurate adjustment:, the said steel concrete road bed board after the Primary Location in the step 301 is carried out accurate adjustment by the fine adjusting method of conventional fragment-free track slab;
Step 303, vibration isolator are installed: two groups of built-in vibration isolators are installed in the said steel concrete road bed board after accurate adjustment puts in place in step 302; And said steel concrete road bed board is floated on two groups of said built-in vibration isolators, and the vibration isolation element one of two groups of said built-in vibration isolators all is in pressured state;
Step 304, repeatedly repeating step 301 is to step 303, until whole laying construction processes of accomplishing a plurality of said prefabricated plates of floating;
Above-mentioned a kind of prefabricated assembled steel spring floating slab track construction technology is characterized in that: the outer sleeve one of two groups of said built-in vibration isolators is all built with said steel concrete road bed board and is one in the step 2; In factory, in advance a plurality of said prefabricated plates of floating are added man-hour, the processing method of a plurality of said prefabricated plates of floating is all identical; And said steel concrete road bed board is added man-hour, and its process is following:
Step 201, the colligation of railway roadbed plate reinforcing cage: the railway roadbed plate reinforcing cage to said steel concrete road bed board carries out colligation;
Step 202, vibration isolator outer sleeve lay: according to the installation position of design in advance, the outer sleeve one of two groups of said built-in vibration isolators is uniformly distributed with is put in the said railway roadbed plate reinforcing cage that colligation accomplishes;
Step 203, railway roadbed board concrete pouring construction: said steel concrete road bed board is carried out concrete pouring construction, obtain to build steel concrete road bed board into one with the outer sleeve one of two groups of said built-in vibration isolators;
Steel concrete road bed board described in step 301, step 302 and the step 303 is that machine in the step 203 builds the steel concrete road bed board into one with outer sleeves 1 two groups of said built-in vibration isolators; And when two groups of built-in vibration isolators are installed in the said steel concrete road bed board after accurate adjustment puts in place in step 302 in the step 303, only need in each outer sleeve one in said steel concrete road bed board said vibration isolation element one to be installed respectively and get final product.
Above-mentioned a kind of prefabricated assembled steel spring floating slab track construction technology; It is characterized in that: in the step 2 in a plurality of said prefabricated plates of floating before and after two adjacent said prefabricated plates of floating be provided with two side-mounted vibration isolators, two said side-mounted vibration isolator symmetries are laid in the below, the left and right sides of the said prefabricated plate of floating;
Install in two groups of built-in vibration isolators in the said steel concrete road bed board after accurate adjustment puts in place in step 302 in the step 303; The side-mounted vibration isolator that also needs said steel concrete road bed board front and back end portion need be installed all installs; And said steel concrete road bed board is floated on two side-mounted vibration isolators that two groups of said built-in vibration isolators and front and back end portion install respectively, and two side-mounted vibration isolators that the vibration isolation element one of two groups of said built-in vibration isolators and front and back end portion install respectively all are in pressured state.
Above-mentioned a kind of prefabricated assembled steel spring floating slab track construction technology; It is characterized in that: when in the step 4 two said rail being installed; Carry out continuously floating described in the step 2 laying construction of the prefabricated plate of floating described in reinforcing bar binding and the concrete pouring construction and the step 3 of plate railway roadbed substrate carries out with reinforcing bar binding and concrete pouring construction, the laying construction of the prefabricated plate of floating and three technologies of installation of two said rail of the plate railway roadbed substrate of guaranteeing to float separately simultaneously continuously.
Above-mentioned a kind of prefabricated assembled steel spring floating slab track construction technology is characterized in that: when in the step 2 plate railway roadbed substrate of floating being carried out concrete pouring construction, should the plate railway roadbed substrate middle part construction of floating that constructed accomplish one vertically in the middle of the gutter; Two adjacent said prefabricated floating between the plate of front and back in a plurality of said prefabricated plates of floating in the step 2, it is fixing all to adopt shear hinge and/or shear tube to connect.
Above-mentioned a kind of prefabricated assembled steel spring floating slab track construction technology; It is characterized in that: adopt in the step 301 hanging device with the current steel concrete road bed board of laying the prefabricated plate of floating hang move in the plate railway roadbed substrate of floating before; Need in the plate railway roadbed substrate of floating, to lay earlier a plurality of cushion blocks, the thickness of said cushion block is less than the prefabricated design height in road bed board of steel concrete described in the plate and the gap between the substrate of plate railway roadbed of floating of floating.
Above-mentioned a kind of prefabricated assembled steel spring floating slab track construction technology; It is characterized in that: the floating plate track of constructing is in the shield tunnel; When the said steel concrete road bed board after adopting the track slab precision adjustment device to Primary Location in the step 301 in the step 302 carries out accurate adjustment; The left and right sides of bed board is laid the track slab precision adjustment device respectively in said steel concrete road earlier, and the adjuster base that supplies the track slab precision adjustment device to install is fixed on the tunnel wall of said shield tunnel through expansion bolt; Afterwards, utilize the track slab precision adjustment device on horizontal, vertical and longitudinal direction, said steel concrete road bed board to be carried out accurate adjustment; And after treating that accurate adjustment puts in place, more built-in vibration isolator and side-mounted vibration isolator are installed.
Above-mentioned a kind of prefabricated assembled steel spring floating slab track construction technology; It is characterized in that: when in the step 302 built-in vibration isolator and side-mounted vibration isolator being installed; Also need to adorn one or more built-in vibration isolator levelling pads, also need simultaneously to adorn one or more side vibration isolator levelling pads at each side-mounted vibration isolator top pad at the vibration isolation element one top pad of each built-in vibration isolator.
Above-mentioned a kind of prefabricated assembled steel spring floating slab track construction technology; It is characterized in that: two groups of said built-in vibration isolator symmetries are laid in the left and right sides, inside of the said prefabricated plate of floating in the step 2, and included a plurality of said built-in vibration isolator all is laid on the straight line that the longitudinal center's axis with the prefabricated plate of floating parallels in every group of said built-in vibration isolator.
Above-mentioned a kind of prefabricated assembled steel spring floating slab track construction technology; It is characterized in that: to hanging the said steel concrete road bed board when carrying out Primary Location that moves on to the position, adopt conventional construction survey equipment to accomplish the Primary Location process of said steel concrete road bed board in the step 301; Conventional construction survey equipment described in step 301 neutralization procedure 302 is total powerstation; When the said steel concrete road bed board after adopting the track slab precision adjustment device to Primary Location in the step 301 in the step 302 carries out accurate adjustment; The quantity that the track slab precision adjustment device is laid in the left and right sides of said steel concrete road bed board is a plurality of, and the left and right sides correspondence of said steel concrete road bed board is provided with the adjuster that supplies the track slab precision adjustment device to install and installs and use nylon sleeve.
The present invention compared with prior art has the following advantages:
1, novel in design, rationally and use easy and simple to handle.
2, to a fundamental change of traditional underground railway track construction, adopt the mechanical Installation Modes in the prefabricated scene of batch production, according to the pattern organizing construction of " industrialization of construction industry ", i.e. member designs standardization, production plantization, mechanization of building operation and management scientification.
3, track plate prefabrication is a finished parts, is transported to carry out the site assembly construction in lay a railway track base and the hole, and the track plate is accurately in place to carry out with the jacking operation synchronously, effectively raises labour productivity, and shortens the track construction duration, accelerates the engineering construction progress.
4, reduce heavy, the complicated hand labour and the wet trade of on-site concrete, reduced labourer's field operation intensity, improved an on-the-spot line constructor operating environment.
5, the track plate is an approved product; Produce and adopt batch production, standardization, specialized pattern tissue to produce; Effectively reduced the influence of human factor in the site operation, technical factor, environmental factor, effectively improved the construction quality of floating plate track workmanship.
6, can accurately control the position of track slab pavement in the construction, realize track geometry sizes such as gauge, level, direction, tread elevation, with safety, the even running of guaranteeing train.
7, reasonable in design, the easy construction of supporting plant equipment can be satisfied the needs of track construction.
8, practical value is high, and the plate working procedure of floating is optimized, improves, and has realized the prefabricated production of floating plate track batch production, and on-the-spot mechanization is installed, and has reduced the field operation link, has solved the bottleneck that uses the plate duration pressure of floating on a large scale.
In sum; The present invention is reasonable in design, construction sequence is simple and time saving and energy saving, significantly reduces flow charts such as the colligation of on-the-spot railway roadbed slab muscle, template installation, concreting, and the track plate is an approved product; Produce and adopt batch production, standardization, specialized pattern tissue to produce; Efficiency of construction is high, can effectively solve the practical problem that the floating plate track difficulty of construction is big, technical requirements is high, working procedure is complicated and speed of application is slow, has broad prospect for its application.
Through accompanying drawing and embodiment, technical scheme of the present invention is done further detailed description below.
Description of drawings
Fig. 1 is a construction technology process block diagram of the present invention.
Fig. 2 by the present invention the structural representation of construction floating plate track.
Fig. 3 by the present invention the installation position sketch map of the built-in vibration isolator of employing.
Fig. 4 by the present invention the installation position sketch map of the side-mounted vibration isolator of employing.
Fig. 5 need measure the installation position sketch map of control line and position, control point when floating the plate laying construction for the present invention is prefabricated.
Accurate adjustment view when Fig. 6 carries out accurate adjustment for the present invention to the road bed board.
Description of reference numerals:
The 1-plate railway roadbed substrate of floating; The prefabricated plate of floating of 2-; The 3-rail;
The 4-rail fastening; The built-in vibration isolator of 5-; 5-1-outer sleeve one;
5-2-vibration isolation element one; The side-mounted vibration isolator of 6-; The 7-shear hinge;
The 8-adjuster is installed and is used nylon sleeve; The 9-tunnel wall;
The 10-rubber weather strip; Gutter in the middle of the 11-; 12-encrypts disjunction mark;
13-track slab pavement control line; 14-wire center control line; 15-track slab precision adjustment device;
16-adjuster base; The built-in vibration isolator levelling pad of 17-;
18-side vibration isolator levelling pad.
The specific embodiment
A kind of prefabricated assembled steel spring floating slab track construction technology as shown in Figure 1; The floating plate track of constructing comprises that the circuit bearing of trend of the plate railway roadbed substrate 1 of floating, the edge floating plate track of constructing is laid on a plurality of prefabricated plate 2 and two rail 3 that are installed on a plurality of said prefabricated plates 2 of floating floated in the plate railway roadbed substrate 1 of floating from front to back; The said plate railway roadbed substrate 1 of floating is reinforced concrete structure; Said prefabricated the float plate railway roadbed of plate 2 of floating for machining in advance; The structural representation of the floating plate track of constructing sees Fig. 2 for details, and the construction technology of the floating plate track of constructing may further comprise the steps:
In the present embodiment; The floating plate track of constructing is in the shield tunnel; Thereby preparation of construction mainly is through the repetition measurement civil engineering structure; Behind circuit line transfer supertronic, according to the repetition measurement result, the measuring wire center control line 14 and Height control line of plate railway roadbed substrate 1 that go out to float on tunnel wall 9 bottoms of said shield tunnel.
Measurement unwrapping wire in the preparation of construction specifically refers to the measurement of line transfer supertronic, control disjunction mark repetition measurement and disjunction mark intensive measurement.Because of combined causes such as station, tunnel civil engineering error and structure differential settlements; Cause the designed lines center line with physical presence difference; For guaranteeing that track satisfies the requirement of train operation gauge; Need the plan-position and the elevation of circuit are adjusted, and wire center control stake and Height control stake are set by per about 100～200 meters (curve five timber piles are set up in the curve location); The control disjunction mark is carried out repetition measurement, and the disjunction mark of constructing after repetition measurement finishes is encrypted, and measure error satisfies code requirement.Different stake position such as the position of simultaneously, site operation being measured, shrinkage joint, substrate Height control line, tread Height control line, central lines of track identifies.
Simultaneously, also need carry out the physical dimension deviation check, and the physical dimension deviation check mainly is that the plate location tunnel structure dimensional errors of floating is checked.Big with the actual track centerline deviation for wire center control line 14, floating plate track can't feed back to designing unit with survey data by the location of designing requirement construction, and designing unit confirms processing scheme as the case may be.
In the present embodiment, when concrete pouring construction is carried out in the plate railway roadbed substrate 1 of floating, should accomplish a vertically middle gutter 11 in the plate railway roadbed substrate 1 middle part construction of floating of being constructed.
When reinforcing bar binding and concrete pouring construction are carried out in the plate railway roadbed substrate 1 of floating, a plurality of said prefabricated plate 2 of floating that machines in advance is transported to the base storage of laying a railway track in batches.
In conjunction with Fig. 3; The said prefabricated plate 2 of floating comprises steel concrete road bed board and two groups of built-in vibration isolators 5 that are laid in the said steel concrete railway roadbed intralamellar part left and right sides respectively; The quantity of included built-in vibration isolator 5 is the outer side-lower that a plurality of and two groups of said built-in vibration isolators 5 are laid in two one steel rails 3 respectively in two groups of said built-in vibration isolators 5; Said built-in vibration isolator 5 comprises outer sleeve one 5-1 and vibration isolation element one 5-2 that is installed in outer sleeve one 5-1, the corresponding sleeve installing hole one that leaves a plurality of confession outer sleeve one 5-1 installations on the said steel concrete road bed board.The structure of a plurality of said prefabricated plates 2 of floating is all identical.
Step 301, steel concrete road bed board hang and move and Primary Location: adopt hanging device that the current steel concrete road bed board of laying the prefabricated plate 2 of floating is hung and move in the plate railway roadbed substrate 1 of floating; And, carry out Primary Location to hanging the said steel concrete road bed board that moves on to the position according to the measurement unwrapping wire result in the step 1.
In the present embodiment, to hanging the said steel concrete road bed board when carrying out Primary Location that moves on to the position, adopt conventional construction survey equipment to accomplish the Primary Location process of said steel concrete road bed board in the step 301.
In the present embodiment, the conventional construction survey equipment described in the step 301 is total powerstation.During practice of construction, also can adopt other construction survey equipment.
Step 302, road bed board accurate adjustment: combine Fig. 6; Adopt conventional construction survey equipment to cooperate the non-fragment orbit construction with track slab precision adjustment device 15; And, the said steel concrete road bed board after the Primary Location in the step 301 is carried out accurate adjustment by the fine adjusting method of conventional fragment-free track slab.
Step 303, vibration isolator are installed: two groups of built-in vibration isolators 5 are installed in the said steel concrete road bed board after accurate adjustment puts in place in step 302; And said steel concrete road bed board is floated on two groups of said built-in vibration isolators 5, and vibration isolation element one 5-2 of two groups of said built-in vibration isolators 5 all is in pressured state.
Step 304, repeatedly repeating step 301 is to step 303, until whole laying construction processes of accomplishing a plurality of said prefabricated plates 2 of floating.
In the present embodiment, seal with rubber weather strip 10 between the left and right sides of said steel concrete road bed board and the tunnel wall 9.Two adjacent said prefabricated floating between the plate 2 of front and back in a plurality of said prefabricated plates 2 of floating in the step 2, it is fixing all to adopt shear hinge 7 and/or shear tube to connect.
When reality is installed rail 3; Rail 3 usefulness rail fastenings 4 are installed on the prefabricated plate 2 of floating; The moment of torsion of the connecting bolt of rail fastening 4 need meet design requirement; Detect afterwards the gauge of two one steel rails 3, just, how much morphemes such as level, direction, and adjust the geometry morpheme of rail 3, after track geometry adheres to specification with rail fastening 4 and fill-type backing plate; Two said prefabricated shear hinges of floating between the plate 27 that front and back are adjacent are in place, and accomplish the construction of ancillary facilities such as rubber weather strip 10.
In the present embodiment; When in the step 4 two said rail 3 being installed; Carry out continuously floating described in the step 2 laying construction of the prefabricated plate 2 of floating described in reinforcing bar binding and the concrete pouring construction and the step 3 of plate railway roadbed substrate 1 carries out with reinforcing bar binding and concrete pouring construction, the laying construction of the prefabricated plate 2 of floating and three technologies of installation of two said rail 3 of the plate railway roadbed substrate 1 of guaranteeing to float separately simultaneously continuously.
In the present embodiment, outer sleeve one 5-1 of two groups of said built-in vibration isolators 5 all builds with said steel concrete road bed board and is one in the step 2.In advance a plurality of said prefabricated plates 2 of floating are added man-hour, the processing method of a plurality of said prefabricated plates 2 of floating is all identical; And said steel concrete road bed board is added man-hour, and its process is following:
Step 201, the colligation of railway roadbed plate reinforcing cage: the railway roadbed plate reinforcing cage to said steel concrete road bed board carries out colligation.
Step 202, vibration isolator outer sleeve lay: according to the installation position of design in advance, outer sleeve one 5-1 of two groups of said built-in vibration isolators 5 is uniformly distributed with is put in the said railway roadbed plate reinforcing cage that colligation accomplishes.
Step 203, railway roadbed board concrete pouring construction: said steel concrete road bed board is carried out concrete pouring construction, obtain to build steel concrete road bed board into one with outer sleeve one 5-1 of two groups of said built-in vibration isolators 5.
Steel concrete road bed board described in step 301, step 302 and the step 303 is outer sleeve one 5-1 that machine in the step 203 and two groups of said built-in vibration isolators 5 and builds the steel concrete road bed board into one; And when two groups of built-in vibration isolators 5 are installed in the said steel concrete road bed board after accurate adjustment puts in place in step 302 in the step 303, only need in each outer sleeve one 5-1 in said steel concrete road bed board said vibration isolation element one 5-2 to be installed respectively and get final product.
During practice of construction; Two groups of said built-in vibration isolator 5 symmetries are laid in the left and right sides, inside of the said prefabricated plate 2 of floating, and included a plurality of said built-in vibration isolator 5 all is laid on the line that the longitudinal center's axis with the prefabricated plate 2 of floating parallels in every group of said built-in vibration isolator 5.
In the present embodiment, the quantity of included built-in vibration isolator 5 is two in two groups of said built-in vibration isolators 5.In the practice of construction process, also can be according to actual needs, the quantity of included built-in vibration isolator 5 in two groups of said built-in vibration isolators 5 is adjusted accordingly.
In conjunction with Fig. 4; In the present embodiment; In the step 2 in a plurality of said prefabricated plates 2 of floating before and after two adjacent said prefabricated plates 2 of floating be provided with the left and right sides below that 6, two said side-mounted vibration isolator 6 symmetries of two side-mounted vibration isolators are laid in the said prefabricated plate 2 of floating.
Install in two groups of built-in vibration isolators 5 in the said steel concrete road bed board after accurate adjustment puts in place in step 302 in the step 303; The side-mounted vibration isolator 6 that also needs said steel concrete road bed board front and back end portion need be installed all installs; And said steel concrete road bed board is floated on two side-mounted vibration isolators 6 that two groups of said built-in vibration isolators 5 and front and back end portion install respectively, and two side-mounted vibration isolators 6 that vibration isolation element one 5-2 of two groups of said built-in vibration isolators 5 and front and back end portion install respectively all are in pressured state.
In the step 2; When concrete pouring construction is carried out in the plate railway roadbed substrate 1 of floating; And the strict elevation and the planeness of floating plate railway roadbed substrate 1 top leveling layer of controlling well; The installed position of especially built-in vibration isolator 5 and side-mounted vibration isolator 6 should be guaranteed smooth, and the circuit superelevation is provided with on the leveling layer on plate railway roadbed substrate 1 top of floating.Simultaneously; After said plate railway roadbed substrate 1 construction of floating is accomplished; And before the prefabricated plate 2 of floating carried out laying construction; The control disjunction mark of the wire center control line 14 that also needs to go out according to measuring in the step 1, by the design length of the prefabricated plate 2 of floating, adjacent two prefabricated measurings between the plate 2 of floating go out the encryption disjunction mark 12 of wire center control line 14 in front and back; Location reference point when laying as wire center control line 14 should eject track slab pavement control line 13 according to encrypting disjunction mark 12 before wire center control line 14 is laid.
In the present embodiment; Adopt in the step 302 that the said steel concrete road bed board after the Primary Location carries out accurate adjustment in 15 pairs of steps 301 of track slab precision adjustment device; And when adopting 15 pairs of said steel concrete of track slab precision adjustment device road bed board to carry out accurate adjustment; The left and right sides of bed board is laid track slab precision adjustment device 15 respectively in said steel concrete road earlier, and the adjuster base 16 that supplies track slab precision adjustment device 15 to install is fixed on the tunnel wall 9 of said shield tunnel through expansion bolt; Afterwards, utilize track slab precision adjustment device 15 on horizontal, vertical and longitudinal direction, said steel concrete road bed board to be carried out accurate adjustment; And after treating that accurate adjustment puts in place, more built-in vibration isolator 5 is installed with side-mounted vibration isolator 6.
When built-in vibration isolator 5 is installed with side-mounted vibration isolator 6; Also need to adorn one or more built-in vibration isolator levelling pads 17, also need simultaneously to adorn one or more side vibration isolator levelling pads 18 at each side-mounted vibration isolator 6 top pad at the vibration isolation element one 5-2 top pad of each built-in vibration isolator 5.During actual the installation, can be according to concrete needs, the quantity and the spacer thickness of built-in vibration isolator levelling pad 17 and side vibration isolator levelling pad 18 adjusted accordingly.
That is to say; When built-in vibration isolator 5 is installed with side-mounted vibration isolator 6; With the end face of built-in vibration isolator levelling pad 17 closely knit filling vibration isolation element one 5-2 and the space on said sleeve installing hole one top; Use the end face of side vibration isolator levelling pad 18 closely knit filling vibration isolators and the space of track plate bottom simultaneously; Built-in vibration isolator 5 after guaranteeing to install all is in stress with side-mounted vibration isolator 6, makes the complete pressurized of said steel concrete track plate on built-in vibration isolator 5 and side-mounted vibration isolator 6, removes track slab precision adjustment device 15 and adjuster base 16 at last.
Adopt in the step 302 when the said steel concrete road bed board after the Primary Location carries out accurate adjustment in 15 pairs of steps 301 of track slab precision adjustment device; The quantity that track slab precision adjustment device 15 is laid in the left and right sides of said steel concrete road bed board is a plurality of, and the left and right sides correspondence of said steel concrete road bed board is provided with the adjuster that supplies track slab precision adjustment device 15 to install and installs with nylon sleeve 8.In the present embodiment, the quantity that track slab precision adjustment device 15 is laid in the left and right sides of said steel concrete road bed board is two.
When actual elevation position to the prefabricated plate 2 of floating positions, need to reserve elastic deformation amount's (being built-in vibration isolator 5 and the elastic deformation value of side-mounted vibration isolator 6 under said steel concrete track plate self-gravity action) of built-in vibration isolator 5 and side-mounted vibration isolator 6.After treating said built-in vibration isolator 5 and side-mounted vibration isolator 6 installations, and when track slab precision adjustment device 15 removed, need consider that also side-mounted vibration isolator 6 is adjacent two the said prefabricated plate 2 common stressed influences of floating in front and back.
During practice of construction, also can adopt conventional construction survey equipment that said steel concrete road bed board is carried out accurate adjustment in the step 302, and said conventional construction survey equipment is total powerstation.
In the present embodiment; The a plurality of said prefabricated plate 2 of floating that will machine in advance in the step 2 is transported to bed board in batches and lays in the field process; Earlier the said prefabricated plate 2 of floating is transported to the base and storing of laying a railway track by prefabricated factory; And in prefabricated factory, adopt shaper to carry out the prefabricated production of the prefabricated plate 2 of floating by designing requirement; Float during plate 2 prefabricated productions prefabricated, in advance outer sleeve one 5-1 be embedded in the corresponding position of steel concrete road bed board, simultaneously with a plurality of adjusters install with nylon sleeve 8 symmetries be embedded in said steel concrete road bed board about in two sides.
The said prefabricated plate 2 of floating is transported to when laying a railway track the base by prefabricated factory; The general automobile that adopts transports; Hardening of concrete need be carried out in the set storage place of laying a railway track in the base; The prefabricated plate 2 of floating is provided with chock in prefabricated plate 2 bottoms of floating in transportation and storing process, avoid prefabricated 2 three the stressed and generation buckling deformations of plate of floating.
Step 301 adopts hanging device that the current steel concrete road bed board of laying the prefabricated plate 2 of floating is hung and moves to the 1 last time of plate railway roadbed substrate of floating; Specifically be with current lay prefabricated float plate 2 by the base of laying a railway track be transported to lay on-the-spot; Artificial, aid cooperates, and makes prefabricated plate 2 Primary Location of floating.In the present embodiment, the hanging device described in the step 301 is the gantry crane of laying a railway track.During actual the lifting, utilize earlier on truss portal crane handling to the track plate dollie that the base of laying a railway track is provided with, push track plate dollie through railcar again and move to the place ahead, at last through the gantry crane handling of laying a railway track to the scope of operation.
In the present embodiment, when adopting the truss portal crane or the gantry crane of laying a railway track that the prefabricated plate 2 of floating is lifted, lift as suspension centre with the outer sleeve 5-1 in the prefabricated bed board of steel concrete road described in the plate 2 of floating.
During practice of construction; Adopt in the step 301 hanging device with the current steel concrete road bed board of laying the prefabricated plate 2 of floating hang move in the plate railway roadbed substrate 1 of floating before; Need in the plate railway roadbed substrate 1 of floating, to lay earlier a plurality of cushion blocks, the thickness of said cushion block is less than the prefabricated design height in steel concrete road bed board described in the plate 2 and the gap between the substrate 1 of plate railway roadbed of floating of floating.In the present embodiment, said cushion block is a wood block filler.
Said cushion block both can be used as the prefabricated plate 2 floated and had laid the bolster when in place, prefabricated plate 2 discontinuity of floating after also can avoiding laying simultaneously, and during corresponding minimizing accurate adjustment, the elevation adjustment amount of track slab precision adjustment device 15.
Actual when carrying out Primary Location; According to the track slab pavement control line 13 that in the plate railway roadbed substrate 1 of floating, ejects; The utilization gantry crane of laying a railway track carries out the first shop contraposition of the prefabricated plate 2 of floating, and artificial, aid cooperates, and the plug of the gap between track slab precision adjustment device 15 and adjuster base 16 approaches cushion block simultaneously; Guarantee that track slab precision adjustment device 15 lays firmly, make prefabricated plate 2 Primary Location of floating.
The above; It only is preferred embodiment of the present invention; Be not that the present invention is done any restriction, every technical spirit changes any simple modification, change and the equivalent structure that above embodiment did according to the present invention, all still belongs in the protection domain of technical scheme of the present invention.
Claims (10)
1. prefabricated assembled steel spring floating slab track construction technology; It is characterized in that: the floating plate track of constructing comprises that the circuit bearing of trend of the plate railway roadbed substrate (1) of floating, the edge floating plate track of constructing is laid on a plurality of prefabricated plate of floating (2) and two rail (3) that are installed on a plurality of said prefabricated plates of floating (2) in the plate railway roadbed substrate (1) of floating from front to back; The said plate railway roadbed substrate (1) of floating is reinforced concrete structure, the floating ballast bed plate of the said prefabricated plate of floating (2) for machining in advance; The construction technology of the floating plate track of constructing may further comprise the steps:
Step 1, preparation of construction: adopt the measurement line-putting method of conventional floating plate track railway roadbed substrate, at the construction field (site) the wire center control line (14) and the Height control line of the plate railway roadbed substrate (1) of floating are measured unwrapping wire;
Step 2, the plate railway roadbed substrate of floating construction: according to the measurement unwrapping wire result in the step 1; And according to the float job practices of plate railway roadbed substrate of routine; Circuit bearing of trend along the floating plate track of constructing carries out reinforcing bar binding and concrete pouring construction to the plate railway roadbed substrate (1) of floating from front to back;
When reinforcing bar binding and concrete pouring construction were carried out in the plate railway roadbed substrate (1) of floating, a plurality of said prefabricated plate of floating (2) that will machine in advance in advance was transported to the base storage of laying a railway track in batches;
The said prefabricated plate of floating (2) comprises steel concrete road bed board and two groups of built-in vibration isolators (5) that are laid in the said steel concrete railway roadbed intralamellar part left and right sides respectively; The quantity of included built-in vibration isolator (5) is the outer side-lower that a plurality of and two groups of said built-in vibration isolators (5) are laid in two one steel rails (3) respectively in two groups of said built-in vibration isolators (5); Said built-in vibration isolator (5) comprises outer sleeve one (5-1) and is installed in the vibration isolation element one (5-2) in the outer sleeve one (5-1) that correspondence leaves the sleeve installing hole one that a plurality of confession outer sleeves one (5-1) are installed on the said steel concrete road bed board;
Step 3, the prefabricated plate laying construction of floating: a plurality of said prefabricated plate of floating (2) of the base storage of will laying a railway track earlier is transported to bed board and lays on-the-spot; Again along the circuit bearing of trend of the floating plate track of constructing; Carry out laying construction to being transported to the on-the-spot a plurality of said prefabricated plate of floating (2) of bed board laying from front to back; And the laying construction method of a plurality of said prefabricated plates of floating (2) is all identical, and for any prefabricated plate of floating (2), its laying construction process is following:
Step 301, steel concrete road bed board hang and move and Primary Location: adopt hanging device that the current steel concrete road bed board of laying the prefabricated plate of floating (2) is hung and move in the plate railway roadbed substrate (1) of floating; And, carry out Primary Location to hanging the said steel concrete road bed board that moves on to the position according to the measurement unwrapping wire result in the step 1;
Step 302, road bed board accurate adjustment:, the said steel concrete road bed board after the Primary Location in the step 301 is carried out accurate adjustment by the fine adjusting method of conventional fragment-free track slab;
Step 303, vibration isolator are installed: two groups of built-in vibration isolators (5) are installed in the said steel concrete road bed board after accurate adjustment puts in place in step 302; And said steel concrete road bed board is floated on two groups of said built-in vibration isolators (5), and the vibration isolation element one (5-2) of two groups of said built-in vibration isolators (5) all is in pressured state;
Step 304, repeatedly repeating step 301 is to step 303, until whole laying construction processes of accomplishing a plurality of said prefabricated plates of floating (2);
Step 4, rail are installed and the track accurate adjustment: according to the rail mounting method of conventional floating plate track; Circuit bearing of trend along the floating plate track of constructing; In step 3, laid the prefabricated plate of floating (2) of completion from front to back and gone up installation two one steel rails (3), and the floating plate track of installation has been carried out accurate adjustment.
2. according to the described a kind of prefabricated assembled steel spring floating slab track construction technology of claim 1, it is characterized in that: the outer sleeve one (5-1) of two groups of said built-in vibration isolators (5) is all built with said steel concrete road bed board and is one in the step 2; In factory, in advance a plurality of said prefabricated plates of floating (2) are added man-hour, the processing method of a plurality of said prefabricated plates of floating (2) is all identical; And said steel concrete road bed board is added man-hour, and its process is following:
Step 201, the colligation of railway roadbed plate reinforcing cage: the railway roadbed plate reinforcing cage to said steel concrete road bed board carries out colligation;
Step 202, vibration isolator outer sleeve lay: according to the installation position of design in advance, the outer sleeve one (5-1) of two groups of said built-in vibration isolators (5) is uniformly distributed with is put in the said railway roadbed plate reinforcing cage that colligation accomplishes;
Step 203, railway roadbed board concrete pouring construction: said steel concrete road bed board is carried out concrete pouring construction, obtain to build steel concrete road bed board into one with the outer sleeve one (5-1) of two groups of said built-in vibration isolators (5);
Steel concrete road bed board described in step 301, step 302 and the step 303 is that machine in the step 203 builds the steel concrete road bed board into one with outer sleeves one (5-1) two groups of said built-in vibration isolators (5); And when in the said steel concrete road bed board after accurate adjustment puts in place in step 302 in the step 303 two groups of built-in vibration isolators (5) being installed, only needing in each outer sleeve one (5-1) in said steel concrete road bed board said vibration isolation element one (5-2) to be installed respectively and get final product.
3. according to claim 1 or 2 described a kind of prefabricated assembled steel spring floating slab track construction technologies; It is characterized in that: adjacent two the said prefabricated plates of floating (2) in the middle front and back of a plurality of said prefabricated plates of floating (2) are provided with two side-mounted vibration isolators (6) in the step 2, and two said side-mounted vibration isolators (6) symmetry is laid in the below, the left and right sides of the said prefabricated plate of floating (2);
Install in two groups of built-in vibration isolators (5) in the said steel concrete road bed board after accurate adjustment puts in place in step 302 in the step 303; The side-mounted vibration isolator (6) that also needs said steel concrete road bed board front and back end portion need be installed all installs; And said steel concrete road bed board is floated on two side-mounted vibration isolators (6) that two groups of said built-in vibration isolators (5) and front and back end portion install respectively, and two side-mounted vibration isolators (6) that the vibration isolation element one (5-2) of two groups of said built-in vibration isolators (5) and front and back end portion install respectively all are in pressured state.
4. according to claim 1 or 2 described a kind of prefabricated assembled steel spring floating slab track construction technologies; It is characterized in that: in the step 4 to two said rail (3) when installing; Carry out continuously floating described in the step 2 laying construction of the prefabricated plate of floating (2) described in reinforcing bar binding and the concrete pouring construction and the step 3 of plate railway roadbed substrate (1) carries out with reinforcing bar binding and concrete pouring construction, the laying construction of the prefabricated plate of floating (2) and three technologies of installation of two said rail (3) of the plate railway roadbed substrate (1) of guaranteeing to float separately simultaneously continuously.
5. according to claim 1 or 2 described a kind of prefabricated assembled steel spring floating slab track construction technologies; It is characterized in that: when in the step 2 plate railway roadbed substrate (1) of floating being carried out concrete pouring construction, should plate railway roadbed substrate (1) the middle part construction of floating that constructed accomplish one vertically in the middle of gutter (11); Before and after in a plurality of said prefabricated plates of floating (2) between adjacent two said prefabricated plates of floating (2), all adopt shear hinge (7) and/or shear tube to connect fixing in the step 2.
6. according to claim 1 or 2 described a kind of prefabricated assembled steel spring floating slab track construction technologies; It is characterized in that: adopt in the step 301 hanging device with the current steel concrete road bed board of laying the prefabricated plate of floating (2) hang move in the plate railway roadbed substrate (1) of floating before; Need to go up in the plate railway roadbed substrate (1) of floating earlier to lay a plurality of cushion blocks, the thickness of said cushion block is less than the design height in steel concrete road bed board described in the prefabricated plate of floating (2) and the gap between the plate railway roadbed substrate (1) of floating.
7. according to the described a kind of prefabricated assembled steel spring floating slab track construction technology of claim 2; It is characterized in that: the floating plate track of constructing is in the shield tunnel; When adopting track slab precision adjustment device (15) that the said steel concrete road bed board after the Primary Location in the step 301 is carried out accurate adjustment in the step 302; The left and right sides of bed board is laid track slab precision adjustment device (15) respectively in said steel concrete road earlier, and the adjuster base (16) that supplies track slab precision adjustment device (15) to install is fixed on the tunnel wall (9) of said shield tunnel through expansion bolt; Afterwards, utilize track slab precision adjustment device (15) on horizontal, vertical and longitudinal direction, said steel concrete road bed board to be carried out accurate adjustment; And after treating that accurate adjustment puts in place, more built-in vibration isolator (5) and side-mounted vibration isolator (6) are installed.
8. according to the described a kind of prefabricated assembled steel spring floating slab track construction technology of claim 7; It is characterized in that: in the step 302 to built-in vibration isolator (5) and side-mounted vibration isolator (6) when installing; Also need adorn one or more built-in vibration isolator levelling pads (17) by pad, also need simultaneously adorn one or more side vibration isolator levelling pads (18) at each side-mounted vibration isolator (6) top pad on vibration isolation element one (5-2) top of each built-in vibration isolator (5).
9. according to claim 1 or 2 described a kind of prefabricated assembled steel spring floating slab track construction technologies; It is characterized in that: two groups of said built-in vibration isolators (5) symmetry is laid in the left and right sides, inside of the said prefabricated plate of floating (2) in the step 2, and included a plurality of said built-in vibration isolator (5) all is laid on the straight line that the longitudinal center's axis with the prefabricated plate of floating (2) parallels in every group of said built-in vibration isolator (5).
10. according to claim 1 or 2 described a kind of prefabricated assembled steel spring floating slab track construction technologies; It is characterized in that: to hanging the said steel concrete road bed board when carrying out Primary Location that moves on to the position, adopt conventional construction survey equipment to accomplish the Primary Location process of said steel concrete road bed board in the step 301; Conventional construction survey equipment described in step 301 neutralization procedure 302 is total powerstation; When adopting track slab precision adjustment device (15) that the said steel concrete road bed board after the Primary Location in the step 301 is carried out accurate adjustment in the step 302; The quantity that track slab precision adjustment device (15) is laid in the left and right sides of said steel concrete road bed board is a plurality of, and the left and right sides correspondence of said steel concrete road bed board is provided with the adjuster that supplies track slab precision adjustment device (15) to install and installs with nylon sleeve (8).
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| CN102899996A (en) * | 2012-11-13 | 2013-01-30 | 北京九州一轨隔振技术有限公司 | Novel construction method of precast slab assembled floating road bed |
| CN102912693A (en) * | 2012-11-13 | 2013-02-06 | 北京九州一轨隔振技术有限公司 | Floating track bed precast slab and construction method for precast slab assembled floating track bed |
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| CN107313307A (en) * | 2017-08-18 | 2017-11-03 | 中车青岛四方车辆研究所有限公司 | The modular construction method of tramcar anti-corrosion track |
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| CN110725159A (en) * | 2019-09-16 | 2020-01-24 | 北京工业大学 | Quasi-zero stiffness floating slab track bed system based on positive and negative stiffness parallel connection |
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| CN118029206A (en) * | 2024-04-12 | 2024-05-14 | 中国铁路设计集团有限公司 | Prefabricated assembled magnetic suspension vibration reduction ballast bed |
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| CN102899996A (en) * | 2012-11-13 | 2013-01-30 | 北京九州一轨隔振技术有限公司 | Novel construction method of precast slab assembled floating road bed |
| CN102912693A (en) * | 2012-11-13 | 2013-02-06 | 北京九州一轨隔振技术有限公司 | Floating track bed precast slab and construction method for precast slab assembled floating track bed |
| CN102912693B (en) * | 2012-11-13 | 2015-05-27 | 北京九州一轨隔振技术有限公司 | Floating track bed precast slab and construction method for precast slab assembled floating track bed |
| CN102899996B (en) * | 2012-11-13 | 2015-06-03 | 北京九州一轨隔振技术有限公司 | Novel construction method of precast slab assembled floating road bed |
| CN103334350A (en) * | 2013-07-16 | 2013-10-02 | 天津银龙预应力材料股份有限公司 | Prestressed concrete sleeper and fixed-size thread rolling helical rib steel wire for track plate |
| CN103334350B (en) * | 2013-07-16 | 2015-08-12 | 中国铁道科学研究院铁道建筑研究所 | A kind of prestressed reinforced concrete tie, track plates thread rolling scale helix rib steel wire |
| CN107060815A (en) * | 2017-05-22 | 2017-08-18 | 中铁第勘察设计院集团有限公司 | The iterative structure and its construction method of longitudinal concealed beam and shield duct piece in railway roadbed |
| CN107313307A (en) * | 2017-08-18 | 2017-11-03 | 中车青岛四方车辆研究所有限公司 | The modular construction method of tramcar anti-corrosion track |
| CN107354826A (en) * | 2017-09-08 | 2017-11-17 | 成都市新筑路桥机械股份有限公司 | The rapid constructing method of tunnel built-in type rail system |
| CN107354826B (en) * | 2017-09-08 | 2019-01-25 | 成都市新筑路桥机械股份有限公司 | The rapid constructing method of tunnel built-in type rail system |
| CN109960859A (en) * | 2019-03-12 | 2019-07-02 | 中国建筑科学研究院有限公司 | Vibration isolation structure and finite element simulation method for buildings along subway line |
| CN109960859B (en) * | 2019-03-12 | 2023-03-28 | 中国建筑科学研究院有限公司 | Vibration isolation structure and finite element simulation method for buildings along subway line |
| CN110725159A (en) * | 2019-09-16 | 2020-01-24 | 北京工业大学 | Quasi-zero stiffness floating slab track bed system based on positive and negative stiffness parallel connection |
| CN111851155A (en) * | 2020-06-30 | 2020-10-30 | 中国电建市政建设集团有限公司 | Steel spring floating plate construction method based on concentric tunnel of line tunnel |
| CN111851154A (en) * | 2020-06-30 | 2020-10-30 | 中国电建市政建设集团有限公司 | Base pre-construction method based on cast-in-situ combined type damping cushion ballast bed |
| CN115595829A (en) * | 2022-10-24 | 2023-01-13 | 西南交通大学（Cn） | Steel spring floating slab precast slab track construction method |
| CN118029206A (en) * | 2024-04-12 | 2024-05-14 | 中国铁路设计集团有限公司 | Prefabricated assembled magnetic suspension vibration reduction ballast bed |
| CN118029206B (en) * | 2024-04-12 | 2024-07-05 | 中国铁路设计集团有限公司 | Prefabricated assembled magnetic suspension vibration reduction ballast bed |
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