CN105926385A - Construction method for turnout loosening and locking in low temperature environment - Google Patents
Construction method for turnout loosening and locking in low temperature environment Download PDFInfo
- Publication number
- CN105926385A CN105926385A CN201610266617.7A CN201610266617A CN105926385A CN 105926385 A CN105926385 A CN 105926385A CN 201610266617 A CN201610266617 A CN 201610266617A CN 105926385 A CN105926385 A CN 105926385A
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- CN
- China
- Prior art keywords
- rail
- track switch
- temperature
- brooder
- turnout
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- E01B29/42—Undetachably joining or fastening track components in or on the track, e.g. by welding, by gluing; Pre-assembling track components by gluing; Sealing joints with filling components
-
- 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
- E01B29/42—Undetachably joining or fastening track components in or on the track, e.g. by welding, by gluing; Pre-assembling track components by gluing; Sealing joints with filling components
- E01B29/44—Methods for effecting joining of rails in the track, e.g. taking account of ambient temperature
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Machines For Laying And Maintaining Railways (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
The invention discloses a construction method for turnout loosening and locking in low temperature environment. The method comprises the following steps: (1) setting up a warm shed around a turnout; (2) loosening turnout fasteners and putting a roller under the turnout; (3) rising temperature of the warm shed; (4) adjusting temperature in the shed; (5) taking off the roller; (6) locking the turnout; (7) completing to weld steel rails on the front and rear of the turnout; (8) and removing the warm shed. Through setting up the warm shed around the turnout and arranging a hot-air blower in the warm shed, the turnout is heated, and a rubber hammer is used to knock the steel rails along all ranges of the steel rails to realize loosening in a temperature rising process, and when the temperature rises to designed stress-free temperature, the turnout is locked. The method realizes loosening and locking of a large-scale turnout in winter low temperature environment.
Description
Technical field:
The present invention relates to track switch low temperature and diffuse field, particularly relate to low temperature environment track switch and diffuse lock
Fixed construction method.
Background technology:
It is to use rail tensor that rail is carried out stretching to diffuse that prior art rail low temperature diffuses,
Particularity based on super large railway turnout rail part, stretching is diffused and cannot be implemented for super large track switch；
If additionally must be the most open-minded according to construction period, and winter construction be extremely difficult to the lock of design
Orbit determination temperature, if fastening-down temperature of rail is on the low side, not only maintenance work is limited by many, Er Qiegao
Wen Shi, rail can be by the biggest temperature, pressure, and gapless line is uneven in addition creeps that easily cause " should
Power is concentrated ", therefore there is the danger of expansion rail track, be the most just easy to after temperature raises make
Become the danger of expansion rail track, during therefore winter low temperature environment and super large track switch become track switch construction
Difficult point.
Summary of the invention:
It is an object of the invention to provide low temperature environment track switch and diffuse the construction method of locking, solve
The problem that during low temperature, track switch cannot realize diffusing locking at present.
In order to solve above-mentioned technical problem, the invention provides low temperature environment track switch and diffuse locking
Construction method, it comprises the following steps:
(1) brooder is set up around track switch；
(2) pine track switch fastener pad cylinder: all unclamped by described track switch fastener, then will
On described roller pad infrabasal plate in-orbit；
(3) brooder heats up: is equidistantly positioned multiple hot-air blower in brooder, opens hot-air blower
Heat up for brooder；
(4) temperature of shed is adjusted；
(5) take cylinder: when rail temperature reaches to design fastening-down temperature of rail, start to take cylinder, the rail that falls,
Adjust rail, first clasp, check that gauge, inspection tongue are the most upright, gauge amendment is reached
After marking and confirming tongue Founder, lock fastener；
(6) locking track switch: treat that the every data target of track switch all reaches standard-required and is engaged in through work
Track switch is locked after department's acceptance(check)；
(7) rail welding before and after track switch is completed；
(8) brooder is removed.
Alternatively, described adjustment temperature of shed comprises the following steps:
A, basis rail temperature everywhere, first close 2-3 platform hot-air blower, treats that rail temperature is stable；
B, turn off 1-2 platform hot-air blower make rail temperature slowly fall back to design fastening-down temperature of rail；
C, open 1-2 platform hot-air blower, make rail temperature be basically stable at design fastening-down temperature of rail；
D, in rail temperature-rise period, with rubber hammer along rail gamut tap rail, it is ensured that
Rail stress diffuses uniformly.
Alternatively, the length of described brooder, width and to be correspondingly arranged the most respectively be 222 meters,
2.8 meters and 2 meters, described brooder includes the long shaped skeleton that 6 meters of 37 joint is long, described brooder bone
Frame uses square steel to make, and the sectional dimension of described square steel is 6 centimetres * 8 centimetres, described brooder
End face and side use hollow bilayer sunlight board to make.
Alternatively, the peak power of described hot-air blower is 30KW, additionally sets in described brooder
The electromotor putting 2 200KW is that described hot-air blower is powered.
Advantages of the present invention: the present invention sets up brooder above around track switch, and at brooder
Inside arranging hot-air blower is track switch heating, and in temperature ramp de, complete along rail with rubber hammer
Scope taps rail and realizes diffusing, and when temperature rises to design fastening-down temperature of rail, locks track switch；
Present invention achieves large-scale track switch under winter low temperature environment diffuses locking.
Accompanying drawing illustrates:
Fig. 1 is the flow chart of steps of the embodiment of the present invention.
Detailed description of the invention:
For making the technical problem to be solved in the present invention, technical scheme and advantage clearer, below
To be described in detail in conjunction with the drawings and the specific embodiments.
As it is shown in figure 1, in an embodiment of the present invention, it is provided that low temperature environment track switch diffuses lock
Fixed construction method, it comprises the following steps:
(1) setting up brooder around track switch, brooder total length is set to 222 meters, and (total length of turnout is
136 meters, first 25 meters of track switch, after track switch 60 meters), brooder width 2.8 meters, brooder height 2
Rice, the specification of brooder is not fixing unique the most here, and the concrete length of brooder is according to road
The concrete length of trouble is suitable for adjusting, and the concrete width of brooder is arranged according to length of sleeper；For just
In making and copying mechanically, brooder makes 6 meters of long shaped skeletons, totally 37 joint, and complete descendant
Work is lifted and is assembled into 222 meters to circuit, and long shaped skeleton uses square steel to make, and square steel cross section is
6 centimetres * 8 centimetres, brooder end face and side all make by hollow bilayer sunlight board, in order to warm
Heat up in canopy and make full use of sunlight, bottom brooder, use shoddy cotton to close；
(2) pine track switch fastener pad cylinder: 222m long transmission line, sleeper number is 370, peace
Arranging 76 people, every 2 people are 1 group, and every people from group is responsible for the fastener degree of tightness of 10 sleepers, pine
After complete, fastener is placed on substrate side.Fastener the most loose complete after, start one cylinder of every 10m pad,
For reducing the disturbance to rail as possible, the free vibration of rail, cylinder when diffusing can be met again simultaneously
UseRound steel, length 12cm, round steel oiling, pad in-orbit on infrabasal plate；
(3) brooder heats up: through test, and brooder heats up and uses electric heater programming rate slower.
Through investigation, brooder heats up and uses hot-air blower, and the power variable of hot-air blower and peak power are
30KW, uses 11 hot-air blowers, about each heated zones 20m.11 hot-air blowers amount to
Peak power is 330KW, uses 2,200KW electromotor to provide electric power for hot-air blower.Hot blast
The temperature of machine and the size of wind-force are adjustable, and hot-air blower firing rate is fast, and temperature of shed is relatively easy to
Controlling, in canopy, maximum temperature can reach about 40 DEG C, and rail temperature reaches as high as about 31 DEG C.If
Meter fastening-down temperature of rail is 24 DEG C；
(4) adjust temperature of shed, make rail temperature be stabilized to design fastening-down temperature of rail.According to rail everywhere
Temperature, first closes 2-3 platform hot-air blower, makes rail temperature stable, then turns off 1-2 platform hot-air blower and make
Rail temperature slowly falls back to design fastening-down temperature of rail, opens 1-2 platform hot-air blower the most again, makes rail Wen Ji
This is stable at design fastening-down temperature of rail.In rail temperature-rise period, with rubber hammer along rail gamut
Tap rail, it is ensured that rail stress diffuses uniformly；
(5) cylinder is taken: when rail temperature reaches to design fastening-down temperature of rail (24 DEG C), start to take rolling
Cylinder, fall rail, adjusts rail, first clasp, checks gauge, checks that tongue is the most upright, will
Gauge amendment is up to standard and after confirming tongue Founder, checks and accepts track switch indices, qualified rear tight locking button
Part；
(6) locking track switch: treat that the every data target of track switch all reaches standard-required and checks and accepts conjunction
Lock track switch after lattice, after first making moment of torsion reach requirement with internal combustion wrench, the most manually use T-shaped
Fastener is first made the buckle press of part fastener reach according to the principle every 3 tight 1 by spanner 2 people 1 group
Track switch is laid figure and is required the buckle press of (in the middle of spring tongue part leave the right or normal track the end be not more than 1mm).
Before track switch completes locking, complete displacement observation stake bury underground.After locking completes, at railroad turnout steel rail
On do displacement observation labelling；
(7) complete rail welding before and after track switch, after track switch has locked, start to weld
Rail before and after trouble.Rail welding uses exothermic welding.Welding is completed by professional, and strictly holds
Row thermit welding process；
(8) removing brooder, after track switch locks, brooder is withdrawn circuit by segmentation.
In a particular embodiment of the present invention, also to enter before setting up brooder step around track switch
Row following steps a, track switch are laid；B, big machine are made firm by ramming, big machine make firm by ramming before first to before track switch 25
After rice and track switch, 50 meters of scopes carry out plane and the measurement of higher degree, each 2.5 meters of data points
Thering is provided to big machine and make data firm by ramming, when straight stock made firm by ramming by big machine, bent stock manually coordinates by press and track forces
Song stock is held level with both hands with straight stock, and with small-sized tamping machine, song stock is consolidated；C, accurate adjustment finishing, greatly
Machine measures track forces plane, elevation, level and gauge after making firm by ramming again, if any defective portion
Position, is continued finishing by artificial or big machine, until track switch indices reaches the numerical value that specification specifies；
After removing brooder step, it is also performed to following steps wind big gun tightens up fastener, complete
Locking eventually, residue fastener wind big gun is tightened up after removing, makes track switch whole fastener button by brooder
Pressure is up to standard, completes finally to lock, and clears up track switch with airduct.
The above is the preferred embodiment of the present invention, it is noted that for the art
Those of ordinary skill for, on the premise of without departing from principle of the present invention, it is also possible to do
Going out some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (4)
1. low temperature environment track switch diffuses the construction method of locking, it is characterised in that it include with
Lower step:
(1) brooder is set up around track switch；
(2) pine track switch fastener pad cylinder: all unclamped by described track switch fastener, then will
On described roller pad infrabasal plate in-orbit；
(3) described brooder heats up: is equidistantly positioned multiple hot-air blower in described brooder, beats
Driving described hot-air blower is that described brooder heats up；
(4) described warm temperature of shed is adjusted；
(5) take cylinder: when rail temperature reaches to design fastening-down temperature of rail, start to take described cylinder,
Fall rail, adjust rail, first clasp, check gauge, check tongue the most upright, by gauge
Revise up to standard and after confirming tongue Founder, lock described fastener；
(6) locking track switch: treat that the every data target of track switch all reaches standard-required by inspection
Track switch is locked after qualified；
(7) rail welding before and after track switch is completed；
(8) brooder is removed.
Low temperature environment track switch the most according to claim 1 diffuses the construction method of locking,
It is characterized in that, described adjustment temperature of shed comprises the following steps:
A, basis rail temperature everywhere, first close 2-3 platform hot-air blower, treats that rail temperature is stable；
B, turn off 1-2 platform hot-air blower make rail temperature slowly fall back to design fastening-down temperature of rail；
C, open 1-2 platform hot-air blower, make rail temperature be basically stable at design fastening-down temperature of rail；
D, in rail temperature-rise period, with rubber hammer along rail gamut tap described rail,
Ensure that described rail stress diffuses uniformly.
Low temperature environment track switch the most according to claim 1 diffuses the construction method of locking,
It is characterized in that, the length of described brooder, width and to be correspondingly arranged the most respectively be 222 meters,
2.8 meters and 2 meters, described brooder includes the long shaped skeleton that 6 meters of 37 joint is long, described brooder bone
Frame uses square steel to make, and the sectional dimension of described square steel is 6 centimetres * 8 centimetres, described brooder
End face and side use hollow bilayer sunlight board to make.
Low temperature environment track switch the most according to claim 1 diffuses the construction method of locking,
It is characterized in that, the peak power of described hot-air blower is 30KW, additionally sets in described brooder
The electromotor putting 2 200KW is that described hot-air blower is powered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610266617.7A CN105926385B (en) | 2016-04-26 | 2016-04-26 | Low temperature environment track switch diffuses the construction method of locking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610266617.7A CN105926385B (en) | 2016-04-26 | 2016-04-26 | Low temperature environment track switch diffuses the construction method of locking |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105926385A true CN105926385A (en) | 2016-09-07 |
| CN105926385B CN105926385B (en) | 2018-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610266617.7A Active CN105926385B (en) | 2016-04-26 | 2016-04-26 | Low temperature environment track switch diffuses the construction method of locking |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101469527A (en) * | 2007-12-28 | 2009-07-01 | 中铁二局股份有限公司 | Long rail locking construction method under low temperature condition |
| RU2399714C1 (en) * | 2009-05-19 | 2010-09-20 | Открытое акционерное общество Научно-внедренческий центр "Путевые машины" | Method of relieving stress in rail frame of jointless track |
| CN102359040A (en) * | 2011-09-14 | 2012-02-22 | 中铁六局集团有限公司 | Construction method of adhesive frozen joints for existing railway line steel rail in alpine region |
| CN103291322A (en) * | 2013-05-08 | 2013-09-11 | 中铁隧道集团有限公司 | Anti-freezing heating method for concrete construction of double-track railway tunnels in winter |
| CN103397582A (en) * | 2013-07-30 | 2013-11-20 | 中铁六局集团有限公司 | Method for relieving and locking stress on seamless tracks |
| CN105040534A (en) * | 2015-08-20 | 2015-11-11 | 中铁六局集团天津铁路建设有限公司 | Ultra-large type turnout stress dispersing method in winter |
-
2016
- 2016-04-26 CN CN201610266617.7A patent/CN105926385B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101469527A (en) * | 2007-12-28 | 2009-07-01 | 中铁二局股份有限公司 | Long rail locking construction method under low temperature condition |
| RU2399714C1 (en) * | 2009-05-19 | 2010-09-20 | Открытое акционерное общество Научно-внедренческий центр "Путевые машины" | Method of relieving stress in rail frame of jointless track |
| CN102359040A (en) * | 2011-09-14 | 2012-02-22 | 中铁六局集团有限公司 | Construction method of adhesive frozen joints for existing railway line steel rail in alpine region |
| CN103291322A (en) * | 2013-05-08 | 2013-09-11 | 中铁隧道集团有限公司 | Anti-freezing heating method for concrete construction of double-track railway tunnels in winter |
| CN103397582A (en) * | 2013-07-30 | 2013-11-20 | 中铁六局集团有限公司 | Method for relieving and locking stress on seamless tracks |
| CN105040534A (en) * | 2015-08-20 | 2015-11-11 | 中铁六局集团天津铁路建设有限公司 | Ultra-large type turnout stress dispersing method in winter |
Non-Patent Citations (2)
| Title |
|---|
| 王亚周、王文飞: ""地铁高架桥冬季现场移动式钢轨闪光焊接施工技术"", 《2013中国城市轨道交通关键技术论坛文集——高水平地建设城市轨道交通》 * |
| 聂文成: ""无缝线路应力放散及调整分析"", 《中小企业管理与科技》 * |
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| CN105926385B (en) | 2018-02-09 |
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