CN103452018B - Track gauge correction method for double-block type ballastless track construction - Google Patents
Track gauge correction method for double-block type ballastless track construction Download PDFInfo
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- CN103452018B CN103452018B CN201310365685.5A CN201310365685A CN103452018B CN 103452018 B CN103452018 B CN 103452018B CN 201310365685 A CN201310365685 A CN 201310365685A CN 103452018 B CN103452018 B CN 103452018B
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Abstract
The invention discloses a track gauge correction method for double-block type ballastless track construction. The method comprises the following steps of: (1) manufacturing a track gauge correction device; (2) adjusting the track gauge accuracy of the track gauge correction device by using a tool track of a group of track panels; (3) correcting a track gauge in construction, properly loosening fastener screw spikes before the track panels are raised, inserting the track gauge correction device from the start end of the tool track to press four pairs of track gauge correction wheels against two sides of the track wrist of the tool track, arranging supporting traveling wheels on the track surface of the tool track, longitudinally moving the device along the tool track, arranging a sleeper between front and back track gauge correction wheels to enable the track gauge correction wheels to apply force to the tool track so as to realize track gauge correction, manually screwing the fastener screw spikes, and fixing a track gauge relationship between the tool track and the sleeper to complete the track gauge correction operation of the sleeper; (4) sequentially performing the track gauge correction operation, in the step (3), on all sleepers.
Description
Technical field
The present invention relates to high-speed railway slag-free rail construction technology, be specifically related to the correction of gage device and method in the construction of a kind of double-blocked rail without ballast.
Background technology
CRTS-I type double-blocked rail without ballast is in equipment Imported From German EMH Company radar 2000 technical foundation, in conjunction with China's national situation through innovating the domestic ballastless track system of formation again, compared with the ballastless track of other form, has the advantages such as cost is low, work efficiency is high, good endurance.After Wuhan-Guangzhou passenger-dedicated line high-speed railway (design speed 350km/h) was formally open to the traffic in 2009, again at great Xi, Lanzhou and Xinjiang, Shanghai elder brother, the High-speed Passenger Dedicated Lines such as blue or green flourish, and major long tunnel, station are applied to circuits such as hair lines.At present, one of CRTS-I type double-blocked rail without ballast primary trace form having become China Express Railway.The core technology of CRTS-I type double-blocked rail without ballast system is: utilize tool track to fix prefabricated double-block type sleeper; Three dimensions control measuring technique is utilized to be located by tool track Accuracy Space; Double-block type sleeper is permanently affixed in road bed board by the cast-in-place road bed board concrete of formwork erection, and then changes paving long rail formation gapless track, carries out later stage adjustment, open operation after reaching the requirement of high ferro ride comfort according to criterion of train running to circuit.
At present, the construction technology of double-blocked rail without ballast reaches its maturity in the control of the orbit parameters such as height, direction, all can meet design requirement and trueness error requirement.Have gauge parameter only by sleeper steel bar girder insufficient rigidity, the impact of the factors such as sleeper alignment error, generally beyond the standard of allowable error (± 1mm), have to rely on gauge strut to shore gauge at a certain distance, it is made to reach technical requirements, but this is only superficial phenomenon, after adopting gauge strut, in fact after expanding gauge by force, owing to shoring location gap large (every 3 sleepers install 1 gauge strut), cause sleeper track rail cant (standard is the 1:40 that slopes inwardly) to prolong line direction and irregular change occurs, make the rail gradient after the long rail of laying uneven, cause gauge suddenly big or suddenly small, rail level is distortion repeatedly, have a strong impact on safety and the comfort level of driving, simultaneously to the height of track, other parameter such as direction also has impact in various degree, adjustment fastener must be changed by a large amount of, the ride comfort requirement of high speed traveling could be met.Therefore make fastener turnover rate usually up to more than 30%, engineering cost remains high, and is the adjustment amount deposit wretched insufficiency that the works department being responsible for circuit long-time maintenance after operation is reserved simultaneously, to the security of operation of high ferro and long-time maintenance totally unfavorable.
Find through a large amount of experimental studies, in work progress, gauge has an obvious Changing Pattern, the impact that namely suspension truss rigidity is low, and after raise track (being maked somebody a mere figurehead by the section of track), truss occurs lower rich, and gauge slopes inwardly, and gauge diminishes; After building railway roadbed concrete, under the effect of chutable concrete buoyancy, the useful load acted on truss reduces, and under truss, the rich part that obtains is recovered, and after concrete possesses certain enabling capabilities, after removing section of track temporary supporting system in time, gauge thoroughly recovers.But by the impact of man-made assembly section of track error, still there is irregular phenomenon in gauge.
Therefore, under the prerequisite making full use of gauge Changing Pattern, during the solution man-made assembly section of track, gauge is irregular is the key thoroughly improving double-blocked rail without ballast gauge parameter.
Find by carrying out research to the annexation of tool track and sleeper, after sleeper is connected with tool track, tool track and gauge block, between gauge block and sleeper shoulder block, leave small gap (width is about 0.2mm), each track place has 4 minim gaps (amounting to 0.7 ~ 0.8mm), the track at every sleepers two ends has the minim gap of about 1.5mm altogether, during the man-made assembly section of track, the uniformity of each minim gap cannot be ensured, sometimes tool track outwards extrudes, cause outside minim gap closely connected, the corresponding increase of gauge, sometimes tool track inwardly extrudes, cause inner side minim gap closely connected, the corresponding reduction of gauge, the gauge inhomogeneities caused, with the gauge caused rich under truss regular reduce superpose after, constructor is caused to be difficult to judge, usually error in judgement is caused if do not examined, when gauge is too small, exceed standard for preventing gauge and blindly use strut expansion gauge, cause the change of sleeper rail cant, cause the irregularity of line direction thus, administer to later stage Track regularity and bring a lot of drawback, the method changing gauge block need be adopted to adjust, result increases workload, improve construction cost.
Summary of the invention
In view of double-blocked rail without ballast construction period is manually difficult to thoroughly eliminate sleeper alignment error, affect the conforming problem of gauge, the object of this invention is to provide one and can significantly improve construction precision, completely abolish gauge strut, and there is means for correcting and the method for the double-blocked rail without ballast gauge that work efficiency is high, cost is low.
For reaching above object, the present invention takes following technical scheme to be achieved:
A correction of gage method for double-blocked rail without ballast construction, is characterized in that, comprise the steps:
The first step, manufactures a correction of gage device, comprises two girders, at the both ends near girder, is provided with two auxiliary girders be parallel to each other, by parallel for girder connection, forms similar groined type layout; The middle part of every root girder is provided with expansion bend, is provided with back and front supporting travelling wheel below every root auxiliary girder, is all arranging the correction of gage wheel being symmetrical in auxiliary girder for a pair near the below of end of main beam, forms forward and backward each two to totally eight correction of gage wheels;
Second step, utilizes the gauge precision of the tool track determination correction of gage device of one group of section of track
Suitably loosen the fastener screw spike section of track connecting sleeper and tool track, then the section of track is raised track, correction of gage device is inserted from tool track starting ends, make often pair of gauge correcting wheel compaction tool rail web of the rail both sides, supporting travelling wheel is placed on tool track rail level, measures gauge by gauge track forces, by the length of expansion bend adjustment girder, until make gauge reach standard gauge, locking connects the fastener screw spike of sleeper and tool track; Again measure gauge, and finely tune the length of girder, maintenance gauge is standard gauge, is finally fixed by expansion bend, makes the length of girder constant;
3rd step, correction of gage operation in construction
The section of track suitably loosens the fastener screw spike connecting sleeper and tool track before raising track, inserted by correction of gage device, make four pairs of gauge correcting wheel compaction tool rail web of the rail both sides from tool track starting ends, supports travelling wheel and is placed on tool track rail level; Correction of gage device is vertically moved along tool track, by sleeper between front and back correction of gage wheel, correction of gage is taken turns and realizes correction of gage to tool track force, then manually tighten fastener screw spike, the gauge relation of setting tool rail and sleeper, completes the correction operation of this sleeper gauge;
4th step, carries out the correction of gage operation of the 3rd step successively to all sleepers.
In said method, described correction of gage is taken turns realize correction of gage to tool track force to refer to, when gauge is less than standard gauge, be placed in correcting wheel inside tool track as the outside compression tool rail of outer support wheel force tool track outwards movement realize gauge and expand; When gauge is greater than standard gauge, the correcting wheel be placed in outside tool track forces the mobile gauge that realizes in tool track item to shrink as the interior inside compression tool rail of wheel that draws.
Described expansion bend adopts the extension sleeve of the positive and negative screw thread bolt of band.
The advantage of employing the inventive method is:
1, special correction of gage device is adopted effectively can to correct alignment error between sleeper and tool track, detect sleeper original gauge whether to meet design requirement, simple to operate, standardized work can be realized, ensure construction precision, reduce the later stage and change fastener quantity.
2, improve gauge inspection and correction process that traditional double block type ballastless track sleeper installs, make that the original loaded down with trivial details gauge by sleepers detects, correction operation is simplified, and can effectively prevent from artificially judging the gauge error caused by accident, increase substantially work efficiency.
The inventive method has higher application value in the construction of CRTS-I type double-blocked rail without ballast and similar engineering.
Accompanying drawing explanation
Below in conjunction with the drawings and the specific embodiments, the present invention is described in further detail.
Fig. 1 is the top view of correction of gage device of the present invention.
Fig. 2 is the elevation of correction of gage device of the present invention.
In Fig. 1, Fig. 2: 1. girder; 2. auxiliary girder; 3. extension sleeve; 3-1. extension sleeve adjustment hole; 4. support travelling wheel; 5. outside, support wheel; 5-1. supports wheel shaft outward; 6. in, draw wheel; Wheel shaft is drawn in 6-1.; 10. tool track
Detailed description of the invention
See Fig. 1, Fig. 2, a kind of correction of gage device of double-blocked rail without ballast construction, comprises two girders 1, at the both ends near girder, is provided with two auxiliary girders be parallel to each other 2, by parallel for girder connection, forms similar groined type layout; The middle part of every root girder is provided with the length that expansion bend can regulate girder.Being provided with back and front supporting travelling wheel 4 below every root auxiliary girder is placed on tool track 10, being arranged the correction of gage wheel being symmetrical in auxiliary girder for a pair by wheel shaft near the below of end of main beam, comprise the outer support wheel 5 being placed in outside tool track and drawing wheel 6 and be placed in inside tool track.Expansion bend can be is with the extension sleeve 3 of positive and negative screw thread bolt to form,
The major and minor beam of correction of gage device of the present invention can adopt cross section to be the steel-pipe welding of rectangle.Disconnect in the middle part of girder 1, broken end welds round steel screw rod (left and right be respectively positive and negative screw thread) respectively, the female extension sleeve 3 of mounting strap.Installed rows travelling wheel 4 below auxiliary girder 2.Be symmetrical in the hole of auxiliary girder at drill with ferrule two under girder 1 end steel pipe, penetrate respectively outer support wheel shaft 5-1, in draw wheel shaft 6-1 firm with girder steel-pipe welding, then support outside respectively wheel shaft, in draw wheel shaft installs outer support wheel 5, in draw wheel 6.
The know-why of this device is: utilize major and minor beam 1,2 groined type to arrange, provide enough plane stiffnesses; Utilize extension sleeve 3 to regulate girder length, eliminate mismachining tolerance; The support travelling wheel 4 installed under utilizing auxiliary girder, facilitates device to move on tool track 10; Gauge is utilized to support the squeezing action of wheel 5 pairs of tool tracks outward, outside pushing tow tool track when gauge is less than normal, expansion gauge; Utilize in gauge the squeezing action of drawing wheel 6 pairs of tool tracks, inside pushing tow tool track when gauge is bigger than normal, shrink gauge; Utilize the rolling friction of correcting wheel and tool track, reduce the resistance that device is movable; Utilize the correcting wheel compression tool rail web of the rail, force tool track inside or outside level trace mobile, prevent sleeper rail cant from changing; Space before and after utilizing between two groups of correction of gage wheels, as the operating space of fastening rail fastener screw spike.
Correction of gage method in ballastless track construction of the present invention, comprises the following steps:
The first step, utilizes the tool track of one group of section of track to determine the gauge precision of this device
Suitably loosen the fastener screw spike section of track connecting sleeper and tool track, then the section of track is raised track, this device is inserted from tool track starting ends, all correction of gage are made to take turns (outer support wheel 5, in draw wheel 6) compaction tool rail web of the rail both sides, supporting travelling wheel 4 is placed on tool track 10 rail level, measures gauge, repeatedly adjusted the length of girder 1 by extension sleeve 3 by gauge track forces (Special measuring scale), until make gauge reach standard gauge (1435mm), lock corresponding fastener screw spike; Again detect gauge errorless after, extension sleeve 3 is fixed, makes the length of girder 1 constant.
Second step, correction of gage operation in construction
Before the section of track raises track, fastener screw spike need not be tightened (ensureing that sleeper energy left and right trace is mobile), this device is inserted from tool track 10 starting ends, make all correction of gage take turns (outer support wheel 5, in draw wheel 6) compaction tool rail 10 web of the rail both sides, support travelling wheel 4 and be placed on tool track 10 rail level; Vertically move this device along tool track, by sleeper between the correcting wheel of front and back, when gauge is less than design load (1435mm), gauge supports wheel 5 compression tool rail 10 outward and realizes gauge expansion; When gauge is greater than design load, inside draws wheel 6 compression tool rail 10 to realize gauge and shrink, then manually tighten fastener screw spike, setting tool rail 10 and the gauge relation of sleeper, complete the correction operation of this sleeper gauge.
3rd step, carries out the correction of gage operation of second step successively to all sleepers.When the original gauge severe overweight of sleeper, by Timeliness coverage, directly sleeper can be changed.
Claims (3)
1. a correction of gage method for double-blocked rail without ballast construction, is characterized in that, comprise the steps:
The first step, manufactures a correction of gage device, comprises two girders, at the both ends near girder, is provided with two auxiliary girders be parallel to each other, and by parallel for girder connection, forms groined type layout; The middle part of every root girder is provided with expansion bend, is provided with back and front supporting travelling wheel below every root auxiliary girder, is all arranging the correction of gage wheel being symmetrical in auxiliary girder for a pair near the below of end of main beam, forms forward and backward each two to totally eight correction of gage wheels;
Second step, adopts the gauge precision of the tool track determination correction of gage device of one group of section of track
Suitably loosen the fastener screw spike section of track connecting sleeper and tool track, then the section of track is raised track, correction of gage device is inserted from tool track starting ends, make often pair of gauge correcting wheel compaction tool rail web of the rail both sides, support travelling wheel is placed on tool track rail level, measures gauge by gauge track forces, by the length of expansion bend adjustment girder, until make gauge reach standard gauge, locking connects the fastener screw spike of sleeper and tool track; Again measure gauge, and finely tune the length of girder, maintenance gauge is standard gauge, is finally fixed by expansion bend, makes the length of girder constant;
3rd step, correction of gage operation in construction
Tool track suitably loosens the fastener screw spike connecting sleeper and tool track before raising track, inserted by correction of gage device, make four pairs of gauge correcting wheel compaction tool rail web of the rail both sides from tool track starting ends, supports travelling wheel and is placed on tool track rail level; Correction of gage device is vertically moved along tool track, by sleeper between front and back correction of gage wheel, correction of gage is taken turns and realizes correction of gage to tool track force, then manually tighten fastener screw spike, the gauge relation of setting tool rail and sleeper, completes the correction operation of this sleeper gauge;
4th step, carries out the correction of gage operation of the 3rd step successively to all sleepers.
2. the correction of gage method of double-blocked rail without ballast construction as claimed in claim 1, it is characterized in that, described correction of gage is taken turns realize correction of gage to tool track force to refer to, when gauge is less than standard gauge, the correcting wheel be placed in inside tool track realizes gauge expansion as the outside compression tool rail of outer support wheel; When gauge is greater than standard gauge, the correcting wheel be placed in outside tool track realizes gauge contraction as the interior inside compression tool rail of wheel that draws.
3. the correction of gage method of double-blocked rail without ballast construction as claimed in claim 1, it is characterized in that, described expansion bend adopts the extension sleeve of the positive and negative screw thread bolt of band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310365685.5A CN103452018B (en) | 2013-08-20 | 2013-08-20 | Track gauge correction method for double-block type ballastless track construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310365685.5A CN103452018B (en) | 2013-08-20 | 2013-08-20 | Track gauge correction method for double-block type ballastless track construction |
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| CN103452018A CN103452018A (en) | 2013-12-18 |
| CN103452018B true CN103452018B (en) | 2015-07-15 |
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| CN201310365685.5A Expired - Fee Related CN103452018B (en) | 2013-08-20 | 2013-08-20 | Track gauge correction method for double-block type ballastless track construction |
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| CN104313957B (en) * | 2014-09-26 | 2016-04-20 | 中铁三局集团有限公司 | A kind of novel double-block type track panel coarse adjustment method |
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| CN113279293A (en) * | 2021-05-31 | 2021-08-20 | 上海应用技术大学 | Intelligent detection system and detection method for geometric state of high-speed rail |
| CN113483634B (en) * | 2021-06-25 | 2023-09-19 | 安徽博晟亿电力科技有限公司 | A track calibration device for railway inspection and its implementation method |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3871299A (en) * | 1972-11-02 | 1975-03-18 | Plasser Bahnbaumasch Franz | Method and apparatus for lining and leveling track |
| JPH09302602A (en) * | 1996-05-20 | 1997-11-25 | Sugawara Kogyo Kk | Track gauge adjustment device |
| CN201198552Y (en) * | 2008-03-18 | 2009-02-25 | 中冶宝钢技术服务有限公司 | Device for adjusting horizontality of rail span |
| CN201321591Y (en) * | 2008-12-22 | 2009-10-07 | 中铁一局集团有限公司 | Gauge adjusting and positioning device |
| CN102199906A (en) * | 2011-04-13 | 2011-09-28 | 成都普罗米新科技有限责任公司 | Track center ruler |
| CN202187257U (en) * | 2011-06-30 | 2012-04-11 | 中国建筑第四工程局有限公司 | Rail distance adjusting device for long steel rails of ballastless track of passenger dedicated line |
| CN103205919A (en) * | 2013-04-03 | 2013-07-17 | 中铁第四勘察设计院集团有限公司 | Railway track geometrical morphology detector |
-
2013
- 2013-08-20 CN CN201310365685.5A patent/CN103452018B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3871299A (en) * | 1972-11-02 | 1975-03-18 | Plasser Bahnbaumasch Franz | Method and apparatus for lining and leveling track |
| JPH09302602A (en) * | 1996-05-20 | 1997-11-25 | Sugawara Kogyo Kk | Track gauge adjustment device |
| CN201198552Y (en) * | 2008-03-18 | 2009-02-25 | 中冶宝钢技术服务有限公司 | Device for adjusting horizontality of rail span |
| CN201321591Y (en) * | 2008-12-22 | 2009-10-07 | 中铁一局集团有限公司 | Gauge adjusting and positioning device |
| CN102199906A (en) * | 2011-04-13 | 2011-09-28 | 成都普罗米新科技有限责任公司 | Track center ruler |
| CN202187257U (en) * | 2011-06-30 | 2012-04-11 | 中国建筑第四工程局有限公司 | Rail distance adjusting device for long steel rails of ballastless track of passenger dedicated line |
| CN103205919A (en) * | 2013-04-03 | 2013-07-17 | 中铁第四勘察设计院集团有限公司 | Railway track geometrical morphology detector |
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Inventor after: Miao Yongping Inventor after: Wang Xinmin Inventor after: Chen Saiyong Inventor after: Wang Haitao Inventor after: Zhang Nian Inventor after: Zhang Cuiqin Inventor after: Xu Xueting Inventor before: Miao Yongping Inventor before: Wang Xinmin Inventor before: Chen Saiyong Inventor before: Zhang Nian Inventor before: Xu Xueting |
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