CN106758586B - The method that railway is reinforced on sharp radius curve and easement curve - Google Patents
The method that railway is reinforced on sharp radius curve and easement curve Download PDFInfo
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- CN106758586B CN106758586B CN201611165425.3A CN201611165425A CN106758586B CN 106758586 B CN106758586 B CN 106758586B CN 201611165425 A CN201611165425 A CN 201611165425A CN 106758586 B CN106758586 B CN 106758586B
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- sleeper
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Classifications
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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
- E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
-
- 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
- E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
- E01B29/06—Transporting, laying, removing or renewing sleepers
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
- E01B29/06—Transporting, laying, removing or renewing sleepers
- E01B29/09—Transporting, laying, removing or renewing sleepers under, or from under, installed rails
- E01B29/10—Transporting, laying, removing or renewing sleepers under, or from under, installed rails for inserting or removing sleepers
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
- E01B29/40—Means or arrangements for temporarily supporting laid tracks, or rails or sleepers in the track
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Floor Finish (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Abstract
A kind of method that railway is reinforced on sharp radius curve and easement curve, using special sleeper, U-bolt be used in combination that sleeper is locked in D types just beam top, with short wood, special sleeper and D types, just beam longeron inner wall dieback loosens generation horizontal sliding to prevent U-bolt, to ensure that circuit double track is stablized, simultaneously adjust former circuit concrete crosstie fall within D types just joist steel pillow between, ensure the requirement of circuit double track horizontal spacing, embedment isosceles triangle rail is added using in D beam-ends heads, to D types, just beam is fixed, resist the circuit sliding that 3 in Curve Segment driving lateral torsion generates, sharp radius curve is carried out using the composite structure form and mitigates the track strengthening of section, it can ensure that circuit element is constant and traffic safety.The use condition of wide in range D types just beam, reduces cost, improves construction efficiency, reduce structure technology risk and construction risk.Reference is provided for engineering construction from now on, has accumulated experience, economic benefit and social benefit are notable.
Description
Technical field
The invention is related to a kind of method that railway is reinforced on sharp radius curve and easement curve, belongs to civil engineering and builds
If field.
Background technology
In recent years, as the quickening of urbanization process, urban population quantity increasingly increase, urban transportation amount is passed in series
Increase, it is contemplated that urban development, urban road is more and more wider, since underpass can save occupation of land and cost, and to periphery
Existing construction of structures influences smaller（Such as daylighting）, there is irreplaceable advantage in urban road construction.But work as bridge location
In in rail yard, crossover location circuit is curve and easement curve location, and sweep is smaller, and respectively less than D types beam makes
With condition, and D type beams do not adapt to the variation of easement curve section superelevation of outer rail.And if existing simultaneously position has double crossover,
If lifting beam in length and breadth using I-steel reinforces railway, it cannot be guaranteed that the deformation of double crossover position circuit is in specification permissible value, shadow
Ring railway operation safety.
Invention content
In order to solve the above-mentioned technical problem, the invention provides and reinforces iron on a kind of sharp radius curve and easement curve
The method on road is used in combination U-bolt that sleeper is locked in D types just joist steel pillow top, with short wood special sleeper using special sleeper
Just beam longeron inner wall dieback loosens generation horizontal sliding to prevent U-bolt with D types, to ensure that circuit double track is stablized, adjusts simultaneously
The former concrete crosstie of whole original circuit falls within D types just between beam, ensures the requirement of circuit double track horizontal spacing, adds using in D beam-ends heads
If being embedded to isosceles triangle rail, to D types, just beam is fixed, and resists the circuit sliding that 3 in Curve Segment driving lateral torsion generates, adopts
Sharp radius curve is carried out with the composite structure form and mitigates the track strengthening of section, it is ensured that circuit element is constant and drives a vehicle
Safety.Solve the prior art there is always use existing method do not adapt to easement curve section superelevation of outer rail variation and cannot protect
Demonstrate,prove technical problem of the deformation of double crossover position circuit in specification permissible value.
To achieve the goals above, the invention the technical solution adopted is that：Add on sharp radius curve and easement curve
Gu the method for railway, step are：
1）, early-stage preparations：
1a）, calculate reinforcing scope in, just beam falls into the steel sleeper radical in sharp radius curve and easement curve to D types, using outer
Side girder buttress realizes superrelation on curve problem higher than the set-up mode of inside；
1b）, according to easement curve superelevation of outer rail changing value and in the easement curve, just joist steel rests the head on radical to D types, make special
Sleeper processed, special sleeper top surface is wedge shape, and the n-th Gent sleeper after molding compares internal rail to outer rail corresponding part and corresponds to portion
Position thickness h/n, wherein h change total difference for easement curve superelevation of outer rail in D types just beam reinforcing scope；
2）, special sleeper U-bolt and metal mat are fixed on to D types just above the steel sleeper of beam, locking D types just beam and spy
Sleeper processed, railway double track are fixed on special sleeper, and wherein U-bolt and metal mat quantity and specification adjust according to actual needs
It determines；
3）, block circuit, construct longeron buttress, isosceles triangle arrange I-steel；
4）, do not remove former concrete crosstie, adjusting former concrete crosstie makes it be respectively positioned on D types just in the intermediate seam of joist steel pillow, from
And meet the gauge requirement of circuit；
5）, penetrate and lock the D types of special sleeper just beam, longeron is then set up, using cross spacing sleeper pier special
The longeron inner wall dieback of sleeper loosens to prevent U-bolt occurs horizontal sliding；
6）, using longitudinal spacing sleeper pier being stoppered between former concrete crosstie and D types just joist steel pillow, prevent D types just joist steel
Rest the head on straight skidding；
7）, by D types just beam-ends head be embedded to I-steel, be fixed；
8）, using railway spike by route rail fastening down on special sleeper,
9）, after the completion of reinforcing, line clear, overall trip speed speed limit 45km/h.
The step 2）With step 3）Between also have following steps：It first carries out at the scene pre-assembled, it is ensured that each component ruler
Very little and data meet the linear requirement of circuit.
The advantageous effect of the invention is：
Track strengthening structure and construction method proposed by the present invention, which solve, uses tradition D types just beam reinforcing sharp radius curve
Limitation and the case where can not directly reinforce easement curve section railway, the use condition of wide in range D types just beam is reduced and is made
Valence improves construction efficiency, reduces structure technology risk and construction risk.Reference is provided for engineering construction from now on, product
Experience is tired out, economic benefit and social benefit are notable.
Description of the drawings
Fig. 1：Routinely to be reinforced under D types just beam applicable elements.
Fig. 2：For layout drawing on ruggedized construction curve of the present invention and easement curve.
Fig. 3：Layout drawing is reinforced for ruggedized construction curve of the present invention and easement curve.
Fig. 4：For the faces the II-II structural schematic diagram of Fig. 3.
Fig. 5：For invention ruggedized construction side partial enlarged view.
Fig. 6：For invention ruggedized construction plane partial enlarged view.
Specific implementation mode
The method that railway is reinforced on sharp radius curve and easement curve, step are：
1, early-stage preparations：
1a, it calculates in reinforcing scope, just beam falls into the radical in sharp radius curve and easement curve to D types, using longeron branch
Superrelation on curve problem is realized higher than the set-up mode of inside in 1 outside of pier；
1b, according to easement curve superelevation of outer rail changing value and positioned at D types in easement curve, just joist steel rests the head on radical, makes special
Sleeper 5,5 top surface of special sleeper is wedge shape, and the n-th Gent sleeper 5 after molding compares internal rail to outer rail corresponding part and corresponds to
Position thickness h/nmm, wherein h change total difference for easement curve superelevation of outer rail in D types just beam reinforcing scope；
2, the U-bolt 6 of special sleeper 5 and metal mat 8 are fixed on above the steel sleeper of D types just beam, locking D types just beam and
Special sleeper 5, railway double track are fixed on special sleeper 5, and wherein U-bolt 6 and 8 quantity of metal mat and specification are according to practical need
Adjust determination；
3, circuit is blocked, construction longeron buttress 1, isosceles triangle arranges I-steel 2；
4, former concrete crosstie 4 is not removed, adjusting former concrete crosstie 4 makes it be respectively positioned on D types just among the steel sleeper of beam in seam, from
And meet the gauge requirement of circuit；
5, penetrating D types, just joist steel is rested the head on, and is then set up longeron, is locked special sleeper 5, uses 3, cross spacing sleeper pier
The longeron inner wall dieback of special sleeper 5 loosens to prevent U-bolt 6 occurs horizontal sliding；
6, former concrete crosstie 4 and D types are just stoppered between joist steel is rested the head on using longitudinal spacing sleeper pier 7, prevents D types just joist steel
Rest the head on straight skidding；
7, by D types, just beam-ends head is embedded to I-steel 2, is fixed；
8, using railway spike 9 by route rail fastening down on special sleeper 5,
9, after the completion of reinforcing, line clear, overall trip speed speed limit 45km/h.
There are following steps between the step 2 and step 3：It first carries out at the scene pre-assembled, it is ensured that each part dimension
Meet the linear requirement of circuit with data.
Minor radius described in file refers specifically to radius and is less than 400m.
Application in concrete engineering：
Newly-built packet header western station area downlink viaduct engineering is located at packet header western station area downlink Receiving yaxd and goes downwards between hair field, i.e.,
Road junction at the blue downlink K22+458.5 of packet, jacking framed bridge center mileage are the blue downlink K22+455.5 of packet, which faces Bao Xi
Circuit workshop and circuit work area, south are penetrated through with into western station organ building road, and major project is 1-7m jacking frame structures, and frame core-tube system is complete
Wide 8.4m, pipe jacking method.
Flat to change vertical engineering and intersect with railway in the blue places downlink K22+458.5 of packet, intersecting angle is 85 °.Infall was both promising
Railway level-crossing, cement paving, road junction width about 6.2m, totally four railway lines, southern side most outer course are the blue downlink of packet at road junction
Line, north side most outer course are machine cabling, and centre is 2,3, and crossover location is located on the blue downlink curve of packet and easement curve, outer rail
Superelevation changing value is 45mm ~ 90mm, gapless track, circular curve radius 500m, line slope 5.2 ‰；2,3 line slope
It is 6 ‰, 2 to be located on straight line and 400m circular curves, 3 are located on line linear and 250 circular curves；Machine cabling is straight line and circle
On curve, circular curve radius 200m line slopes 30 ‰；Four are electric railway, 60kg/m rail.Between machine cabling and 3
There is present situation dwarfsignal, wrapping blue downlink road junction east side has present situation high signal.
Step 1 calculates in reinforcing scope, and just joist steel pillow falls into the radical in curve and easement curve, superrelation on curve to D types
It is realized in such a way that jack stringer buttress 1 is higher than inside, superelevation changing value uses and adds special wood on steel sleeper in easement curve
Pillow 5 meets superelevation to be changed in proper order, and longeron buttress 1 and special sleeper 5 are to calculate to determine.
Step 2 processes special sleeper 5, is located in easement curve after the determination of steel sleeper radical, then high-end per Gent sleeper 5
Height change is h/n（mm）, it is thicker h/n than internal rail corresponding position that the 1st Gent sleeper 5 of machine-shaping is allowed to outer rail corresponding position
（mm）, and so on.
3）Special sleeper 5 is fixed on the top of steel sleeper by step 3 with U-bolt 6 and metal mat 8, with the method with reality
Steel sleeper and special sleeper 5 are now locked, U-bolt 6, the number of metal mat 8 and specification need to be determined by calculating according to actual conditions.
4）Step 4 first carries out pre-assembled at the scene, it is ensured that each portion's size and data meet the linear requirements of circuit.
5）Step 5, blocks circuit, and construction longeron buttress 1 and isosceles triangle arrange I-steel 2, longeron buttress 1 and I-steel
2 size has calculating to determine.
6）Step 6 blocks circuit, carries out cloth pillow, and former circuit original concrete crosstie 4 is made to be respectively positioned in the gap of D joist steels pillow,
Meet the line pitch requirements of circuit using the former concrete crosstie 4 of former circuit.
7）Step 7：Steel sleeper is first penetrated after block circuit, longeron is then set up, locks special sleeper 5, the company of connecting
After fitting, then special sleeper 5 and longeron inner wall dieback are loosened to prevent U-bolt 6 with cross spacing sleeper pier 3 and occur laterally to slide
It moves, using longitudinal spacing sleeper pier 7 being stoppered between former concrete crosstie 4 and steel sleeper, steel sleeper straight skidding is prevented, to ensure line
Stablize on road.
8）Step 8：After blocking circuit, waited circuit rail fastening down on special sleeper 5 using railway spike 9.
9）Step 9：After the completion of reinforcing, line clear, overall trip speed speed limit 45km/h.
Advantageous effect of the present invention is：
1）Special sleeper so that just beam is adapted to the superelevation of outer rail variation on easement curve to D types.
2）Special sleeper can be with raising of track rail height so that is met using D type beam limits on sharp radius curve.
3）Since circuit and sleeper on sleeper beam are locked with railway spike, sleeper is locked with U-bolt with crossbeam, and crossbeam joins with longeron
It connects, entire circuit and in length and breadth beam are reinforced integral, it is ensured that circuit is not subjected to displacement laterally, and the transverse direction of circuit is controlled.
4）A resistant slide facility is added in the support stake of longeron each end, and pre-buried three I-steel of isosceles triangle, beam is in place
Afterwards, pre-buried rail and longeron stopper longeron with timber wedge so that circuit is longitudinally controlled.
5）Using longitudinal spacing sleeper pier being stoppered between former concrete crosstie and steel sleeper, prevent steel sleeper straight skidding, original mixed
Solidifying soil pillow rigidity is very big so that gauge is controlled.
Claims (2)
1. the method for reinforcing railway on sharp radius curve and easement curve, step are：
1）, early-stage preparations：
1a）, calculate in reinforcing scope, just joist steel pillow falls into radical in sharp radius curve and easement curve to D types, using longeron branch
Pier（1）Superrelation on curve problem is realized higher than the set-up mode of inside in outside；
1b）, according to easement curve superelevation of outer rail changing value and in the easement curve, just joist steel rests the head on radical to D types, make special wood
Pillow（5）, special sleeper（5）Top surface is wedge-shaped, and the n-th Gent sleeper after molding（5）Internal rail is compared to outer rail corresponding part
Corresponding position thickness h/n（mm）, wherein h is the total difference of easement curve superelevation of outer rail variation in D types just beam reinforcing scope；
2）, by special sleeper（5）Use U-bolt（6）And metal mat（8）Be fixed on the top of D types just beam, locking D types just beam and
Special sleeper（5）, railway double track is fixed on special sleeper（5）On, wherein U-bolt（6）And metal mat（8）Quantity and specification root
It is determined according to actual needs adjustment；
3）, block circuit, construct longeron buttress（1）, isosceles triangle arrangement I-steel（2）；
4）, do not remove former concrete crosstie（4）, adjust former concrete crosstie（4）It is set to be respectively positioned among the steel sleeper of D types just beam in seam,
To meet the gauge requirement of circuit；
5）, penetrate and lock special sleeper（5）D types just beam, then set up longeron, use cross spacing sleeper pier（3）Spy
Sleeper processed（5）Longeron inner wall dieback to prevent U-bolt（6）It loosens and horizontal sliding occurs；
6）, utilize longitudinal spacing sleeper pier（7）Former concrete crosstie（4）And D types just stopper between joist steel is rested the head on, and prevent D types just beam
Steel sleeper straight skidding；
7）, by D types just beam-ends head be embedded to I-steel（2）, it is fixed；
8）, utilize railway spike（9）By circuit rail fastening down in special sleeper（5）On,
9）, after the completion of reinforcing, line clear, overall trip speed speed limit 45km/h.
2. the method for reinforcing railway on sharp radius curve according to claim 1 and easement curve, it is characterised in that：It is described
Step 2）With step 3）Between also have following steps：
It first carries out at the scene pre-assembled, it is ensured that each part dimension and data meet the linear requirement of circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611165425.3A CN106758586B (en) | 2016-12-16 | 2016-12-16 | The method that railway is reinforced on sharp radius curve and easement curve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611165425.3A CN106758586B (en) | 2016-12-16 | 2016-12-16 | The method that railway is reinforced on sharp radius curve and easement curve |
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| CN106758586A CN106758586A (en) | 2017-05-31 |
| CN106758586B true CN106758586B (en) | 2018-08-31 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108708290B (en) * | 2018-06-27 | 2020-04-03 | 中铁十五局集团有限公司 | Box bridge frame hollow structure of small-radius railway curve unit and cast-in-place construction method |
| CN112982044B (en) * | 2021-03-24 | 2023-01-06 | 广西柳州钢铁集团有限公司 | Construction process for quickly forming integral road bed of road junction |
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| CN102979041A (en) * | 2012-12-26 | 2013-03-20 | 中铁七局集团郑州工程有限公司 | Soft overhead reinforcing jacking method for construction of span box bridge of jacking block of underpass turnout group of railway |
| KR101260947B1 (en) * | 2011-12-13 | 2013-05-06 | 동원궤도(주) | Track support apparatus |
| CN203654110U (en) * | 2013-12-25 | 2014-06-18 | 中铁五局（集团）有限公司 | Framework track panel for constructing double-block ballastless track bed |
| CN104264543A (en) * | 2014-09-11 | 2015-01-07 | 北京铁五院工程机械有限公司 | Method for constructing small-radius curve ballastless track |
| CN204224997U (en) * | 2014-10-13 | 2015-03-25 | 济南铁路局淄博工务段 | Little curve circuit bracing means |
| CN105755915A (en) * | 2016-02-29 | 2016-07-13 | 中铁十二局集团第七工程有限公司 | Construction method for CRTS III plate type ballastless track bed plate |
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2016
- 2016-12-16 CN CN201611165425.3A patent/CN106758586B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101260947B1 (en) * | 2011-12-13 | 2013-05-06 | 동원궤도(주) | Track support apparatus |
| CN102979041A (en) * | 2012-12-26 | 2013-03-20 | 中铁七局集团郑州工程有限公司 | Soft overhead reinforcing jacking method for construction of span box bridge of jacking block of underpass turnout group of railway |
| CN203654110U (en) * | 2013-12-25 | 2014-06-18 | 中铁五局（集团）有限公司 | Framework track panel for constructing double-block ballastless track bed |
| CN104264543A (en) * | 2014-09-11 | 2015-01-07 | 北京铁五院工程机械有限公司 | Method for constructing small-radius curve ballastless track |
| CN204224997U (en) * | 2014-10-13 | 2015-03-25 | 济南铁路局淄博工务段 | Little curve circuit bracing means |
| CN105755915A (en) * | 2016-02-29 | 2016-07-13 | 中铁十二局集团第七工程有限公司 | Construction method for CRTS III plate type ballastless track bed plate |
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