CN106368089A - Construction method for small-radius curve track laying and linear control of tram - Google Patents
Construction method for small-radius curve track laying and linear control of tram Download PDFInfo
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- CN106368089A CN106368089A CN201510432602.9A CN201510432602A CN106368089A CN 106368089 A CN106368089 A CN 106368089A CN 201510432602 A CN201510432602 A CN 201510432602A CN 106368089 A CN106368089 A CN 106368089A
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Abstract
The invention discloses a tram track laying construction technique. The invention discloses a construction method for small-radius curve track laying and linear control of a tram. The construction method comprises the following steps of: performing construction preparation, performing staking out in survey, performing long rail towing, performing guided bending of the long rail, performing temporary fixing of the long rail, performing rail panel supporting, performing fastener assembly, performing track fine adjustment, and the like. According to the construction method, the long rail is formed by standard steel rails in a welding manner; then the long rail is towed to a laying position by utilizing rail tongs in cooperation with a winch, and a fixed pulley and a guide pulley are arranged at target positions of the steel rails; when the long rail is towed, corresponding temporary fixing is performed at the same time; and finally, fine adjustment is performed, so that the arrangement of the long rail in a designed position is completed. According to the construction method disclosed by the invention, the curving of the long rail is formed by one-step molding; through the towing process using the fixed pulley and the guide pulley, the smoothness of the curved parts of the steel rails is guaranteed; and besides, construction tools are commonly used tools for steel rail construction, so that the construction cost is low, the construction efficiency is high, and the destructive effect on the steel rails is small.
Description
Technical field
The present invention relates to streetcar track laying construction field, particularly to the construction method of a kind of laying of tramcar track with small-radius curve and line type control.
Background technology
Eurocities tramcar development at present is in rank first, and its construction degree is substantially at saturation, at present mainly based on operation repair and maintenance.Modern domestic tramcar is started late, mainly represented with Dalian, Shenyang tramcar for early stage, modern tram is mainly characterized by circuit along urban road traveling, at intersection, curve radius of turn is less, it is just sharp radius curve when sweep is less than 350m according to " metro design code ", and the bending radius of typically railroad track is both greater than 400m, track with small-radius curve brings difficulty to the track laying of tramcar.
Domestic and international track with small-radius curve laying technology at present, mainly adopts rail strai-ghtener by rail pre-bending molding, then steel rail laying is put in place.But this construction method major defect:
1. operator use the unstability of rail strai-ghtener, lead to the definite value it cannot be guaranteed that bending；
2. rail strai-ghtener is puted forth effort for 3 points when being curved rail, has obvious deformation and can not recover after the completion of bending at impetus；
3. rail strai-ghtener bends rail every time, is required for carrying out parameter regulation, hydraulic pressure force, continues the operations such as pressurize, process operations have high demands, and less efficient.
In order to overcome disadvantage mentioned above, be highly desirable to reference to minor radius location construction precision is high, crossing lead change off-period short the features such as, develop a kind of urban tram minor radius track laying and line type control construction method, fully ensure that the smoother property of orbital curve, and adapt to the nervous construction period.
Content of the invention
It is an object of the invention to overcoming the track of tramcar in prior art when road junction is laid, mainly adopt rail strai-ghtener by rail pre-bending molding, it cannot be guaranteed that the definite value of curved in tracks, in rail impetus can stay obvious deformation and can not recover, the deficiency of multi-process handling inefficiency, a kind of tramcar track with small-radius curve laying and the construction method of line type control are provided, this construction method efficiency of construction is high, rail curve disposal molding, and curved in tracks position curvilinear circular compliance is splendid.
In order to realize foregoing invention purpose, the invention provides technical scheme below:
The laying of tramcar track with small-radius curve and the construction method of line type control, comprise the following steps:
(1) preparation of construction: before laying construction, carry out cross oral sex admittance to be laid a railway track to change and enclose the measure of keeping away temporarily, long rail welding completes and ensures that joint flaw detection is up-to-standard, described long rail is welded using many standard rail, the gapless line length being welded into is the rail length that whole right-angled intersection bending section needs, welding quality requires with reference to tb/t1632.2-2014 " rail welding part 2: flash " standard, and that is, in the construction bending of long rail and after bending, welding position remains to meet rail use intensity；The standard rail length of current China is 12.5m and two kinds of 25m, for extra-heavy duty type, heavy rail using the standard-length rail of 25m, is welded into 100m gapless line using many standard rail and carries out streetcar track laying；
(2) surveying and locating: remove substrate surface debris, survey every 15-25m and set and labelling track laying wire center control point, determine track laying line midline it is ensured that deviation is less than 2mm；Disjunction mark control point is set inside railway roadbed, and the every 4-7m in described disjunction mark control point arranges one；
(3) long rail traction: rail tongsrail clamp collocation steel wire rope is constructed with the method for elevator machine travel, described rail tongsrail clamp is fixed on long rail termination, after fixation is connected rail tongsrail clamp with the steel wire rope of hoist engine；Arrange fixed pulley on benchmark control point, by rope traction to fixed pulley, after stable connection to be confirmed, at the uniform velocity drawn using hoist engine, long rail is drawn to target location；
(4) long rail guided bend: control the bending line style of long rail: outside spacers install at least two leading blocks in long rail curved section target location, enter line slip route guidance with reference to elevator machine travel to long rail with leading block；After the traction of long rail is put in place, with chain block, transverse curvature traction is carried out to long rail, in conjunction with measurement data, rail towing is moved on to design attitude, deviation controls in the range of 2cm；
(5) long rail is fixed temporarily: long rail is fixed long rail traction and the long rail guided bend of step (4) with step (3) temporarily and carried out simultaneously, often a section of dilatory long rail puts in place and is accordingly fixed immediately temporarily, until all drag long rail string putting in place, using the fastener being cast on railway roadbed, the two ends of long rail are locked；
(6) rail row supporting: long rail is fixed by after preliminary latch temporarily, installs multiple rail brace frames along long rail length direction and long rail is supported and adjusts long rail height, tighten corresponding fixing bolt guarantee to support firm；Installation insulation gauge tie-rod is spaced on the curved section of long rail according to design requirement, in order to adjust and to fix the spacing of long rail；
(7) fastener is assembled: in the sweep section of long rail, outside is provided with rail tramway dedicated fastener；
(8) track accurate adjustment: after the section of track is tentatively in place, according to circuit disjunction mark, adjust section of track height using track forces, square and by rail brace frame, with track detection car, repetition measurement is carried out to track condition and be modified, straight repetition measurement is extremely qualified.
During concrete operations, the disjunction mark control point position of step (2) must be high-visible, no other interference.
Preferably, the long rail traction trend in step (3) must be drawn according to measurement the provided scope of disjunction mark, it is to avoid rail occurs offset excessive bringing unnecessary trouble to subsequent construction；
Must assure that, in hoist engine operating process, the principle at the uniform velocity drawing, dig-inning rail in step (3), be adjusted operating according to rail trend at any time；Hoist engine operator must accept floor manager personnel unified command, avoids personnel's injury that maloperation brings while ensureing that rail towing moves on to.
Preferably, in step (4) during long rail guided bend, installing a leading block every 8-12m, leading block base is holed using electric drill and is used expansion bolt and ground fixation.
Preferably, chain block in a pre-installation, is first implanted Steel-bar Pile on the ground and is drawn as stress point, or directly manually drawn, until dilatory put in place in step (4).
Preferably, be fixed using triangle steelframe when fixing in step (5) temporarily
Preferably, in step (5) when locking long rail two ends, carrying out track lining playback by the way of artificial sled moves when the dilatory rail of mechanical cross is not in place.
As preferred; in step (6), rail brace frame installs one along long rail length direction every 3-4m; need to ensure that rail brace frame base plate is closely connected with rail base plate when rail brace frame is installed, be set with one section of pvc plastic tube outside the support screw of rail brace frame and protected, be easy to the dismounting of bracing frame.
Preferably, being provided with inclined support bar at rail brace frame two ends in step (6), inclined support bar one end triangle reinforced frame is as fixed pivot；The installation of triangle reinforced frame need to meet the construction of up-downgoing railway roadbed one-piece casting, so also allows for the dismounting of inclined support bar later stage.
Preferably, in step (7) fastener spacing arrangement be defined by track centerline, up-downgoing cableties part try one's best keep point-blank, when assembled fastener base plate must vertical with rail it is allowed to range of error be ± 5mm.
Preferably, long rail sweep section fastener arrangement density is 1760 right/km.
During step (8) middle orbit accurate adjustment:
(1) after the section of track is tentatively in place, according to circuit disjunction mark, adjust section of track height using wheel disc track forces, square and by rail brace frame；
(2) during section of track adjustment, control the rail with disjunction mark homonymy with right angle track forces, first the altitude mixture control of right angle track forces is adapted to the rail level discrepancy in elevation, and the aligner at track forces column bottom is directed at the center of disjunction mark, the slider frame of track forces is on the rail of homonymy, simultaneously by adjacent for universal rail gage right angle track forces, frame, on two strands of rail, controls opposite side rail and checks and adjust gauge；
(3) adjustment closes on the rail brace frame of disjunction mark, adjusts center line, rotating support column, so that rail is raised and lowered after first level-off, represent when right angle track forces air level is placed in the middle homonymy rail modulated to designed elevation；When universal rail gage is (if should add superelevation value when measuring in long rail sweep, for balance centrifugal force of train, outside rail is raised on long rail sweep, this required amount of raising be referred to as superelevation value) air level placed in the middle when, represent opposite side rail be also adjusted to desired height.Then the rail clip bolt in rotation rail brace adjustment frame, first pine side tight opposite side again, rail is made to horizontally slip, first adjust and stake homonymy rail, adjust opposite side rail again, until right angle track forces cross sliding clock total indicator reading be " 0 ", wheel disc track forces reading be " 1435mm " (as 3 in Curve Segment need to be widened when by 1435+w) when, then with the 10m string of a musical instrument measurement, accurately the column of adjustment bracing frame and rail clip bolt, make the physical dimension of track reach standard；
(4) because position and the circuit disjunction mark of rail brace frame be not on same cross section, when adding tune rail, rail involves movement, therefore adjust and carry out by convergence method on rail reality of work, needing repeatedly could be perfect, track after adjustment is in place must up to standard on inspection after, the work of subsequent processing can be carried out；
(5) by disjunction mark, track condition is carried out after accurate adjustment, with track detection car, repetition measurement is carried out to track condition and be modified；
(6) carry out last track condition repetition measurement with track detection car after completing above section of track erection and adjustment work, after retest-ok, enter next road working procedure.
Compared with prior art, beneficial effects of the present invention:
1st, this construction method is welded into long rail using standard rail, recycle the rail tongsrail clamp collocation long rail of elevator machine travel to position to be laid, and lay fixed pulley and leading block in the target location of rail, fixed accordingly while long rail draws temporarily, completed the arrangement in design attitude for the long rail；With reference to chain block, long rail is carried out with lateral traction bending during guided bend, long rail bending is fixed after putting in place in time；Then using rail brace frame and insulation gauge tie-rod, coarse adjustment is carried out to the height of long rail and gauge, finally in conjunction with survey tool and adjustment instrument, accurate adjustment is carried out to the section of track, the aim curve reaching track is linear；The long rail of this construction method bends disposal molding, using fixed pulley and leading block distraction procedure it is ensured that the smoother property at deflection of rail position, and construction tool is rail construction common tool, and construction cost is low, efficiency of construction is high, little to the destructiveness of rail；
2nd, this construction method makes curve track one-time laying put in place, in the traction of long rail and bending, using the specific purpose tools such as hoist engine, leading block and chain block combine artificial operate, construction procedure is followed the principle at the uniform velocity drawing, dig-inning rail it is ensured that personal security during rail construction.
Brief description:
Fig. 1 is the construction method construction process figure of the laying of this tramcar track with small-radius curve and line type control.
Fig. 2 is the construction schematic diagram of the long rail traction of this construction method.
Fig. 3 is the construction schematic diagram of the rail guided bend of construction method.
Fig. 4 is the schematic diagram of the rail brace frame long rail of support of this construction method.
Fig. 5 is the top view of Fig. 4.
The long rail of in figure labelling: 1-, 2- fixed pulley, 3- steel wire rope, 4- hoist engine, 5- leading block, 6- rail fixing end, 7- rail brace frame, 71- support screw.
Specific embodiment
With reference to test example and specific embodiment, the present invention is described in further detail.But this scope being interpreted as the above-mentioned theme of the present invention should not be only limitted to below example, all the scope of the present invention be belonged to based on the technology that present invention is realized.
Embodiment
In the present embodiment, it is welded into the long rail of 100m from 25m standard rail taking 100m long rail curve track laying construction as a example.
As shown in figure 1, the tramcar track with small-radius curve laying of the present embodiment and the construction method of line type control, comprise the following steps:
(1) preparation of construction: before laying construction, cp networking measurement has to pass through the assessment operation of management and owner's unit, including the settlement observation data of roadbed；Carry out cross oral sex admittance to be laid a railway track to change and enclose the measure of keeping away temporarily, the welding of 100m long rail completes and ensures that joint flaw detection is up-to-standard, and corresponding plant equipment, material etc. are all complete simultaneously；
(2) surveying and locating: remove substrate surface debris, survey every 20m and set and labelling track laying wire center control point, determine track laying line midline it is ensured that deviation is less than 2mm；Disjunction mark control point is set inside railway roadbed, and the every 5m in described disjunction mark control point arranges one；The position at disjunction mark control point must be high-visible, and no other interference are to carry out track geometry status adjustment；
(3) long rail traction: the construction schematic diagram of long rail traction as shown in Figure 2, rail tongsrail clamp collocation steel wire rope 3 is constructed with the method that hoist engine 4 draws, described rail tongsrail clamp is fixed on long rail 1 termination, after fixation, rail tongsrail clamp is connected with the steel wire rope 3 of hoist engine 4；Arrange fixed pulley 2 on benchmark control point, steel wire rope is led 3 and guides on fixed pulley 2, after stable connection to be confirmed, at the uniform velocity drawn using hoist engine 4, long rail 1 is drawn to target location；Because 100m long rail string weight reaches 6t, therefore bring extreme difficulty to rail traction, increase safe pressure simultaneously, using the rail tongsrail clamp collocation long rail of elevator machine travel, bring convenience for construction, also can guarantee that workmen's safety simultaneously；
(4) long rail guided bend: be curved by design radial for the long rail of guarantee, the bending line style of long rail must be controlled in rail heave, as shown in figure 3, carrying out slide-and-guide with leading block 5, every 10m, in long rail 1, outside spacers install a leading block 5；After rail traction is put in place by leading block 5, with chain block, lateral traction is carried out to rail, in conjunction with measurement data, rail towing is moved on to design attitude, deviation controls in the range of 2cm；
(5) long rail is fixed temporarily: long rail is fixed long rail traction and the long rail guided bend of step (4) with step (3) temporarily and carried out simultaneously, a bit of the putting in place often drawing long rail is accordingly fixed immediately temporarily, until all drag long rail string putting in place, fix temporarily and adopt triangle steelframe, prevent long rail bounce-back to stop；
(6) rail row supporting: as shown in Figure 4 and Figure 5, long rail 1 is fixed by after preliminary latch temporarily, installs a rail brace frame 7 in rail side every 3.5m and long rail 1 is supported, for adjust and retaining rail away from；Tightening corresponding fixing bolt guarantees that support is firm, and adjusting support screw 71 highly can be adjusted to long rail；Sweep section according to the long rail of design requirement every 2.5m install an insulation gauge tie-rod, in order to adjust with retaining rail away from；
(7) fastener is assembled: in the sweep section of long rail, outside is provided with rail tramway dedicated fastener；In the present embodiment, fastener is tramcar special w-tram fastener；
(8) track accurate adjustment: after the section of track is tentatively in place, according to circuit disjunction mark, adjust section of track height using track forces, square and by rail brace frame, with track detection car, repetition measurement is carried out to track condition and be modified, straight repetition measurement is extremely qualified.
During concrete operations, the disjunction mark control point position of step (2) must be high-visible, no other interference.
In the present embodiment, the long rail traction trend in step (3) must be drawn according to measurement the provided scope of disjunction mark, it is to avoid rail and offset excessive bringing unnecessary trouble to subsequent construction；
In the present embodiment, in step (3), must assure that, in hoist engine operating process, the principle at the uniform velocity drawing, dig-inning rail, be adjusted operating according to rail trend at any time；Hoist engine operator must accept floor manager personnel unified command, avoids personnel's injury that maloperation brings while ensureing that rail towing moves on to.
In the present embodiment, in step (4), leading block base is holed using electric drill and is used expansion bolt fixation.
In the present embodiment, in step (4), chain block in a pre-installation, is first implanted Steel-bar Pile on the ground and is drawn as stress point, or directly manually drawn, until dilatory put in place.
In the present embodiment, using the fastener pouring on railway roadbed, long rail two ends are locked after in step (5), long rail is drawn and put in place；In fixing long rail, if carrying out track lining playback by the way of artificial sled moves when the dilatory rail of mechanical cross is not in place.
In the present embodiment, when rail brace frame is installed in step (6), must assure that bracing frame base plate is closely connected with rail base plate, be set with one section of pvc plastic tube outside threaded support bar and protected, be easy to the dismounting of bracing frame.
In the present embodiment, at rail brace frame two ends, inclined support bar is installed in step (6), inclined support bar one end triangle reinforced frame is as fixed pivot；The installation of triangle reinforced frame need to meet the construction of up-downgoing railway roadbed one-piece casting, so also allows for the dismounting of inclined support bar later stage.Inclined support bar is mainly used in adjustable track direction, and being arranged on while meeting up-downgoing railway roadbed one-piece casting construction requirement of triangle reinforced frame also allows for the dismounting of inclined support bar later stage.
In the present embodiment, in step (7) fastener spacing arrangement be defined by track centerline, up-downgoing cableties part try one's best keep point-blank, when assembled fastener base plate must vertical with rail it is allowed to range of error be ± 5mm.
In the present embodiment, long rail sweep section fastener arrangement density is 1760 right/km.
During step (8) middle orbit accurate adjustment:
(1) after the section of track is tentatively in place, according to circuit disjunction mark, adjust section of track height using wheel disc track forces, square and by rail brace frame；
(2) during section of track adjustment, control the rail with disjunction mark homonymy with right angle track forces, first the altitude mixture control of right angle track forces is adapted to the rail level discrepancy in elevation, and the aligner at track forces column bottom is directed at the center of disjunction mark, the slider frame of track forces is on the rail of homonymy, simultaneously by adjacent for universal rail gage right angle track forces, frame, on two strands of rail, controls opposite side rail and checks and adjust gauge；
(3) adjustment closes on the rail brace frame of disjunction mark, adjusts center line, rotating support column, so that rail is raised and lowered after first level-off, represent when right angle track forces air level is placed in the middle homonymy rail modulated to designed elevation；When universal rail gage is (if should add superelevation value when measuring in long rail sweep, for balance centrifugal force of train, outside rail is raised on long rail sweep, this required amount of raising be referred to as superelevation value) air level placed in the middle when, represent opposite side rail be also adjusted to desired height.Then the rail clip bolt in rotation rail brace adjustment frame, first pine side tight opposite side again, rail is made to horizontally slip, first adjust and stake homonymy rail, adjust opposite side rail again, until right angle track forces cross sliding clock total indicator reading be " 0 ", wheel disc track forces reading be " 1435mm " (as 3 in Curve Segment need to be widened when by 1435+w) when, then with the 10m string of a musical instrument measurement, accurately the column of adjustment bracing frame and rail clip bolt, make the physical dimension of track reach standard；
(4) because position and the circuit disjunction mark of rail brace frame be not on same cross section, when adding tune rail, rail involves movement, therefore adjust and carry out by convergence method on rail reality of work, needing repeatedly could be perfect, track after adjustment is in place must up to standard on inspection after, the work of subsequent processing can be carried out；
(5) by disjunction mark, track condition is carried out after accurate adjustment, with track detection car, repetition measurement is carried out to track condition and be modified；
(6) carry out last track condition repetition measurement with track detection car after completing above section of track erection and adjustment work, after retest-ok, enter next road working procedure.
Long rail and the section of track set up after putting in place, carry out bar-mat reinforcement colligation, carry out formwork support arrangement, finally carry out concreting after bar-mat reinforcement colligation molding below the section of track, complete to construct.
All features disclosed in this specification, or disclosed all methods or during step, in addition to mutually exclusive feature and/or step, all can combine by any way.
Any feature disclosed in this specification (including any accessory claim, summary and accompanying drawing), unless specifically stated otherwise, all can be replaced by other alternative features that are equivalent or having similar purpose.I.e., unless specifically stated otherwise, each feature is a series of equivalent or one of similar characteristics example.
Claims (10)
1. the construction method of the laying of tramcar track with small-radius curve and line type control is it is characterised in that comprise the following steps:
(1) preparation of construction: before laying construction, carry out cross oral sex admittance to be laid a railway track and change and enclose the measure of keeping away temporarily, long rail welding completes and ensures that joint flaw detection is up-to-standard, and described long rail is welded using many standard rail；
(2) surveying and locating: remove substrate surface debris, survey every 15-25m and set and labelling track laying wire center control point, determine track laying line midline it is ensured that deviation is less than 2mm；Disjunction mark control point is set inside railway roadbed, and the every 4-7m in described disjunction mark control point arranges one；
(3) long rail traction: rail tongsrail clamp collocation steel wire rope is constructed with the method for elevator machine travel, described rail tongsrail clamp is fixed on long rail termination, after fixation is connected rail tongsrail clamp with the steel wire rope of hoist engine；Arrange fixed pulley on benchmark control point, by rope traction to fixed pulley, after stable connection to be confirmed, at the uniform velocity drawn using hoist engine, long rail is drawn to target location；
(4) long rail guided bend: control the bending line style of long rail: outside spacers install at least two leading blocks in long rail curved section target location, enter line slip route guidance with reference to elevator machine travel to long rail with leading block；After the traction of long rail is put in place, with chain block, transverse curvature traction is carried out to long rail, in conjunction with measurement data, rail towing is moved on to design attitude, deviation controls in the range of 2cm；
(5) long rail is fixed temporarily: long rail is fixed long rail traction and the long rail guided bend of step (4) with step (3) temporarily and carried out simultaneously, often a section of dilatory long rail puts in place and is accordingly fixed immediately temporarily, until all drag long rail string putting in place, using the fastener being cast on railway roadbed, the two ends of long rail are locked；
(6) rail row supporting: long rail is fixed by after preliminary latch temporarily, installs multiple rail brace frames along long rail length direction and long rail is supported and adjusts long rail height, tighten corresponding fixing bolt guarantee to support firm；Installation insulation gauge tie-rod is spaced on the curved section of long rail according to design requirement, in order to adjust and to fix the spacing of long rail；
(7) fastener is assembled: in the sweep section of long rail, outside is provided with rail tramway dedicated fastener；
(8) track accurate adjustment: after the section of track is tentatively in place, according to circuit disjunction mark, adjust section of track height using track forces, square and by rail brace frame, with track detection car, repetition measurement is carried out to track condition and be modified, straight repetition measurement is extremely qualified.
2. the construction method of tramcar track with small-radius curve laying according to claim 1 and line type control is it is characterised in that the long rail traction trend in step (3) must be drawn according to measurement the provided scope of disjunction mark.
3. the construction method of tramcar track with small-radius curve laying according to claim 1 and line type control, it is characterized in that, in step (4) during long rail guided bend, every 8-12m, one leading block is installed, leading block base is holed using electric drill and used expansion bolt and ground fixation.
4. the construction method of the tramcar track with small-radius curve laying according to claim 1 or 3 and line type control, it is characterized in that, in step (4) during long guided bend, chain block is in a pre-installation, the stress point first implanting Steel-bar Pile on the ground as chain block is drawn, or directly manually drawn, until dilatory put in place.
5. the construction method of tramcar track with small-radius curve laying according to claim 1 and line type control is it is characterised in that be fixed using triangle steelframe when fixing in step (5) temporarily.
6. the construction method of tramcar track with small-radius curve laying according to claim 1 and line type control, it is characterized in that, in step (5) when locking long rail two ends, when the dilatory rail of mechanical cross is not in place, by the way of artificial sled moves, carry out track lining playback.
7. the construction method of tramcar track with small-radius curve laying according to claim 1 and line type control; it is characterized in that; in step (6), rail brace frame installs one along long rail length direction every 3-4m; need to ensure that rail brace frame base plate is closely connected with rail base plate when rail brace frame is installed, be set with one section of pvc plastic tube outside the support screw of rail brace frame and protected.
8., it is characterised in that being provided with inclined support bar at rail brace frame two ends, inclined support bar one end triangle reinforced frame is as fixed pivot for the construction method of tramcar track with small-radius curve laying according to claim 7 and line type control.
9. the construction method of tramcar track with small-radius curve laying according to claim 1 and line type control, it is characterized in that, in step (7), fastener spacing arrangement is defined by track centerline, up-downgoing cableties part keeps point-blank, when assembled fastener base plate must vertical with rail it is allowed to range of error be ± 5mm.
10. the construction method of the tramcar track with small-radius curve laying according to claim 1 or 9 and line type control is it is characterised in that long rail curved section fastener arrangement density is 1760 right/km.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107034786A (en) * | 2017-04-10 | 2017-08-11 | 中铁二院工程集团有限责任公司 | A kind of track linear control method for multi-thread LONG-SPAN RAILWAY bridge |
| CN112195692A (en) * | 2020-09-28 | 2021-01-08 | 广州市鼎隆机电安装有限公司 | Urban tram track auxiliary equipment |
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| CN102296495A (en) * | 2011-05-25 | 2011-12-28 | 中铁二十局集团第四工程有限公司 | Long steel rail laying and welding construction process under conditions of large temperature differences and strong sandstorms |
| FR2986246B1 (en) * | 2012-01-31 | 2014-12-12 | Geismar Ancien Ets L | RAILWAY RAILWAY RACK, LIKELY TO BE ATTACHED TO LIFTING MACHINE, FOR RAIL LOADING AND UNLOADING |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107034786A (en) * | 2017-04-10 | 2017-08-11 | 中铁二院工程集团有限责任公司 | A kind of track linear control method for multi-thread LONG-SPAN RAILWAY bridge |
| CN112195692A (en) * | 2020-09-28 | 2021-01-08 | 广州市鼎隆机电安装有限公司 | Urban tram track auxiliary equipment |
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| CN106368089B (en) | 2017-12-08 |
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