CN108978360B - Construction method for laying multi-crossing and multi-turnout - Google Patents
Construction method for laying multi-crossing and multi-turnout Download PDFInfo
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- CN108978360B CN108978360B CN201810637187.4A CN201810637187A CN108978360B CN 108978360 B CN108978360 B CN 108978360B CN 201810637187 A CN201810637187 A CN 201810637187A CN 108978360 B CN108978360 B CN 108978360B
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- rail
- turnout
- tamping
- laying
- switch
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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
- E01B7/00—Switches; Crossings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Abstract
The invention discloses a construction method for laying a multi-transit multi-intersection turnout, which is characterized in that a turnout position is formed by one-time alignment by using a parallel intersection measuring method on the basis of a GPS coordinate system; in the laying process, the principle of laying from the middle to two ends, from the outside to the inside, from the small rail piece to the large rail piece is followed by using a main line with a symmetrical axis line position; in the course of the whole track, the principle of firstly straightening strands and then bending strands, firstly rhombus and then crossovers and the whole track from the middle to the two ends are followed. The invention has the beneficial effects that: the construction method can adopt the single-branch, crossover, rhombus and connecting curve parts to lay simultaneously, effectively shorten the construction period and improve the working efficiency; the invention is not limited by the field and has wide application range.
Description
Technical Field
The invention relates to the technical field of railway turnout construction, in particular to a construction method for laying a multi-crossing multi-turnout.
Background
The crossing lines and the combined turnouts can form various multi-crossing and multi-crossing turnouts, and the combination of the rhombus and the crossing lines is also called as the multi-crossing and multi-crossing turnouts. No matter the combination of the two points has various patterns, the crossing lines and the central axes of the compound crossing points can be used as central lines to be divided into a plurality of single turnouts. Namely, a group of multi-crossing and multi-crossing turnouts consists of a plurality of single turnouts, diamonds, crossover lines and connecting curves. The traditional multi-transition multi-crossing laying is to divide the multi-transition multi-crossing laying into a plurality of single-opening multi-crossing laying.
The traditional construction method is to divide the central axis into a plurality of single turnouts to be gradually paved, the working efficiency is low, and the simultaneous radiation cannot be carried out.
Disclosure of Invention
The invention aims to provide a construction method for laying multiple-crossing turnouts, which can simultaneously lay single turnouts, crossover lines, rhombuses and connecting curves, shortens the construction period, effectively improves the working efficiency and can finish the laying and the finishing of the turnouts in a short time.
The invention is realized by the following technical scheme: the construction method for laying the multi-crossing turnout comprises the steps of performing one-time alignment molding on a turnout position by using a parallel intersection measurement method on the basis of a GPS coordinate system; in the laying process, the laying principle that a symmetrical central axis is taken as a main line, the middle part is laid to two ends, the small rail part is laid to the large rail part from the outside to the inside, and the small rail part is laid to the large rail part from the inside to the outside; in the course of the whole track, the principle of firstly straightening strands and then bending strands, firstly rhombus and then crossovers and the whole track from the middle to the two ends are followed.
Further, in order to better implement the invention, the method specifically comprises the following steps:
step S1: preparation work before construction;
step S2: measuring and lofting;
step S3: assembling a multi-crossing multi-turnout;
step S4: finishing construction in one pass; the method specifically comprises the following steps: track lifting, track shifting and tamping, and further to complete the construction, in order to better implement the present invention, the step S3 specifically includes the following steps:
step S31: laying switch sleepers;
step S32: placing rail pieces;
step S33: setting a rail gap;
step S34: adjusting the internal geometric dimension;
step S35: the coordination of the work and electricity joint debugging.
Further, in order to better implement the present invention, step S31 specifically includes, before assembly, putting the switch tie in place in a manner of hanging a rope on a center line according to the center line of the switch tie being measured and sprayed with white lime.
Further, in order to better implement the present invention, the step S32 specifically means that after the switch tie is put in place, the switch is assembled according to the process arrangement from the middle to the two ends, from the outside to the inside, and from the small rail member to the large rail member.
Further, in order to better implement the present invention, step S33 specifically includes calculating a rail gap according to a designed rail temperature and a rail temperature during laying; and adjusting the position of the bolt of the letter block of the stopper according to the accumulated value of the rail gap, namely, the rhombus line is arranged firstly and then the crossover line, and the straight inner rail is arranged firstly and then the outer curved rail is arranged secondly.
Further, in order to better implement the present invention, step S34 specifically means that the straight stock gauge is adjusted according to the offset by using the gap of the threaded hole of the switch tie and the replacement gauge block; the track gauge of the switch part, the roundness and the sealing of the switch rail are adjusted by adopting a comb-shaped adjusting gasket.
Further, in order to better implement the present invention, step S35 specifically refers to: according to the site operation condition, the eyelet position of the switch machine connecting rod and the letter block of the limiter are arranged according to the design position, and the tamping of the large machine and the tamping of the switch rail part are simultaneously well done.
Further, in order to better implement the present invention, step S4 specifically includes the following steps:
step S41: checking before ballasting; the method specifically comprises the steps of checking the internal geometric dimension, the laying position of a line central line and whether each accessory is installed in place;
step S42: the sequence of tamping by the ballast loader; specifically, tamping is carried out according to a cylinder which is firstly straight and then bent and is firstly diamond and then crossover; the method specifically comprises the following steps:
step A1: before ballasting, the switch rails and the frog parts are covered by color strip cloth;
step A2: firstly, tamping by adopting an NRD-4 flexible shaft tamping machine, and then tamping by adopting a CD-02 internal combustion turnout tamping machine and a direct tamping machine in cooperation with manpower;
step S43: and (5) lifting, shifting and tamping to finish construction.
Further, in order to better implement the present invention, step S1 specifically includes the following steps:
step S11: ballast bed leveling
Step S12: selecting rail pieces;
step S13: division of labor.
Compared with the prior art, the invention has the following advantages and beneficial effects:
(1) the construction period can be effectively shortened by simultaneously laying the single-branch, crossover, rhombus and connecting curve parts, and the working efficiency is improved;
(2) the invention is not limited by the field and has wide application range.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.
Example 1:
the invention is realized by the following technical scheme that the construction method for laying the multi-crossing turnout comprises the steps of carrying out one-time alignment molding on the turnout position by utilizing a parallel intersection measurement method on the basis of a GPS coordinate system; in the laying process, the laying principle that a symmetrical central axis is taken as a main line, the middle part is laid to two ends, the small rail part is laid to the large rail part from the outside to the inside, and the small rail part is laid to the large rail part from the inside to the outside; in the course of the whole track, the principle of firstly straightening strands and then bending strands, firstly rhombus and then crossovers and the whole track from the middle to the two ends are followed.
Other parts of this embodiment are the same as those of the above embodiment, and thus are not described again.
Example 2:
in the embodiment, the further optimization is carried out on the basis of the embodiment, and the construction method for laying the multi-transit multi-intersection turnout is used for carrying out one-time routing forming on the turnout position by using a parallel intersection measuring method on the basis of a GPS coordinate system; in the laying process, the laying principle that a symmetrical central axis is taken as a main line, the middle part is laid to two ends, the small rail part is laid to the large rail part from the outside to the inside, and the small rail part is laid to the large rail part from the inside to the outside; in the course of finishing the whole track, the principle of finishing the track from the middle to two ends is followed; the method specifically comprises the following steps:
step S1: preparation work before construction; step S1 specifically includes the following steps:
step S11: leveling the ballast bed; in the leveling process, a bulldozer is matched with manual work to level the track bed, and if necessary, a leveling instrument is adopted to measure the field to perform on-site tracking measurement; then, rolling to meet the requirement of compactness by a road roller;
step S12: selecting rail pieces; the switch tie and the rail members are more in number and specifications; it is necessary to classify the rail members before use and to check whether there is a defect or a damage.
Step S13: division of labor.
Step S2: measuring and lofting;
after lofting, using a steel ruler to meet the condition whether the length is consistent with the length of the rail piece one by one, and processing the problematic technology;
the plane positioning of the intersection turnout is realized by parallelly arranging a turnout head, a turnout center and two turnout tails of each single turnout; in order to ensure that the curves of the middle crossover, the rhombus and the connecting curve part are smooth and straight, a central pile is required to be arranged in each 5m of the crossover and the rhombus, and the parallel intersection measurement recheck of the straight strand and the side strand, the straight strand and the crossover, the crossover and the rhombus, the rhombus and the crossover, and the side strand, the straight strand of the single turnout is required.
Step S3: assembling a multi-crossing multi-turnout; the step S3 specifically includes the following steps:
step S31: laying switch sleepers; the step S31 is to put the switch tie in place in a manner of hanging a rope on the center line before assembly by sprinkling the end line of the switch tie with white lime according to the measured center line.
The distance between the switch ties must be strictly arranged according to the laying drawing, and quality testing personnel carry out necessary rechecking work so as to avoid the phenomena that the interval iron cannot be installed and the switch rails are not closely attached due to the fact that the distance between the switch ties is not accordant after the switch equipment is installed.
Step S32: placing rail pieces; the step S32 specifically means that after the switch tie is put in place, the switch is assembled from the middle to the two ends, first outside and then inside, and from the small rail member to the large rail member according to the process arrangement. In the process, detailed procedures of whether the eyelets of the slide plate are vertically consistent with the turnbuckles of the switch tie, whether the insulating base plate is installed in place, whether the top stickers are installed in sequence and whether the crossover insulating positions are symmetrically distributed are noticed for construction.
Step S33: setting a rail gap; step S33 is specifically to calculate the rail gap according to the designed rail temperature and the rail temperature during laying; and adjusting the position of the bolt of the letter block of the stopper according to the accumulated value of the rail gap, namely, the rhombus line is arranged firstly and then the crossover line, and the straight inner rail is arranged firstly and then the outer curved rail is arranged secondly.
Step S34: adjusting the internal geometric dimension; the step S34 specifically includes that the straight stock gauge utilizes a gap of a threaded hole of the switch tie and a rail gauge block to be replaced, and the side stock gauge is adjusted according to the support distance; the track gauge of the switch part, the roundness and the sealing of the switch rail are adjusted by adopting a comb-shaped adjusting gasket, and the aim is achieved by two Jacks generally.
Step S35: the coordination of the work and electricity joint debugging. The step S35 specifically includes: according to the site operation condition, the eyelet position of the switch machine connecting rod and the letter block of the limiter are arranged according to the design position, and the tamping of the large machine and the tamping of the switch rail part are simultaneously well done.
Step S4: finishing construction in one pass; the method specifically comprises the following steps: and (5) lifting, lining and tamping to finish construction. Step S41: checking before ballasting; the method specifically comprises the steps of checking the internal geometric dimension, the laying position of a line central line and whether each accessory is installed in place;
step S42: the sequence of tamping by the ballast loader; specifically, tamping is carried out according to a cylinder which is firstly straight and then bent and is firstly diamond and then crossover; each time, track lifting, track shifting and tamping are carried out according to the measurement data, measurement personnel track and measure on site until all data indexes meet the design requirements; the method specifically comprises the following steps:
step A1: before ballasting, the switch rails and the frog parts are covered by color strip cloth;
step A2: firstly, tamping by adopting an NRD-4 flexible shaft tamping machine, and then tamping by adopting a CD-02 internal combustion turnout tamping machine and a direct tamping machine in cooperation with manpower;
step S43: and (5) lifting, shifting and tamping to finish construction. When tamping, apply force again with joint bolt, fastener bolt, prevent that the sleeper from moving, sleeper interval, circuit direction from changing.
It should be noted that, during the construction process, it is necessary to determine whether the length of the rail member is consistent with that marked by the laying map, and then the lengths of the on-site before and after the turnout, the rhombus and the crossovers are matched on site, so as to prevent the rail member from deviating greatly from the on-site laying site.
During the whole track, the central axis is used as the central line to ensure the straight strand direction, and then the central line extends to the side strand, the diamond and the crossover.
Other parts of this embodiment are the same as those of the above embodiment, and thus are not described again.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.
Claims (8)
1. The construction method for laying the multi-crossing turnout is characterized by comprising the following steps of: on the basis of a GPS coordinate system, a fork position is once defined line and formed by a parallel intersection measuring method; in the laying process, the laying principle that a symmetrical central axis is taken as a main line, the middle part is arranged to two ends, the small rail piece is arranged from the outside to the inside, and the small rail piece is arranged to the large rail piece; in the course of finishing the whole track, the principle of finishing the track from the middle to two ends is followed; the method specifically comprises the following steps:
step S1: preparation work before construction;
step S2: measuring and lofting;
step S3: assembling a multi-crossing multi-turnout; the step S3 specifically includes the following steps:
step S31: laying switch sleepers;
step S32: placing rail pieces;
step S33: setting a rail gap;
step S34: adjusting the internal geometric dimension;
step S35: distribution of power and electricity combined debugging
Step S4: finishing construction in one pass; the method specifically comprises the following steps: and (5) lifting, lining and tamping to finish construction.
2. The multi-transit multi-turnout pavement construction method according to claim 1, characterized in that: the step S31 is to put the switch tie in place in a manner of hanging a rope on the center line before assembly by sprinkling the end line of the switch tie with white lime according to the measured center line.
3. The multi-transit multi-turnout pavement construction method according to claim 2, characterized in that: the step S32 specifically means that after the switch tie is put in place, the switch is assembled from the middle to the two ends, first outside and then inside, and from the small rail member to the large rail member according to the process arrangement.
4. The multi-transit multi-turnout pavement construction method according to claim 3, characterized in that: step S33 is specifically to calculate the rail gap according to the design rail temperature and the rail temperature during laying; and adjusting the position of the bolt of the letter block of the stopper according to the accumulated value of the rail gap, namely, the rhombus line is arranged firstly and then the crossover line, and the straight inner rail is arranged firstly and then the outer curved rail is arranged secondly.
5. The multi-transit multi-turnout pavement construction method according to claim 4, characterized in that: the step S34 specifically includes that the straight stock gauge utilizes a gap of a threaded hole of the switch tie and a rail gauge block to be replaced, and the side stock gauge is adjusted according to the support distance; the track gauge of the switch part, the roundness and the sealing of the switch rail are adjusted by adopting a comb-shaped adjusting gasket.
6. The multi-transit multi-turnout pavement construction method according to claim 5, characterized in that: the step S35 specifically includes: according to the site operation condition, the eyelet position of the switch machine connecting rod and the letter block of the limiter are arranged according to the design position, and the tamping of the large machine and the tamping of the switch rail part are simultaneously well done.
7. The multi-transit multi-turnout pavement construction method according to claim 6, characterized in that: step S4 specifically includes the following steps:
step S41: checking before ballasting; the method specifically comprises the steps of checking the internal geometric dimension, the laying position of a line center line and whether each accessory is installed in place;
step S42: the sequence of tamping by the ballast loader; specifically, tamping is carried out according to a cylinder which is firstly straight and then bent and is firstly diamond and then crossover; the method specifically comprises the following steps:
step A1: before ballasting, the switch rails and the frog parts are covered by color strip cloth;
step A2: firstly, tamping by adopting an NRD-4 flexible shaft tamping machine, and then tamping by adopting a CD-02 internal combustion turnout tamping machine and a direct tamping machine in cooperation with manpower;
step S43: and (5) lifting, shifting and tamping to finish construction.
8. The multi-transit multi-turnout pavement construction method according to any one of claims 1-7, characterized in that: step S1 specifically includes the following steps:
step S11: ballast bed leveling
Step S12: selecting rail pieces;
step S13: division of labor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810637187.4A CN108978360B (en) | 2018-06-20 | 2018-06-20 | Construction method for laying multi-crossing and multi-turnout |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810637187.4A CN108978360B (en) | 2018-06-20 | 2018-06-20 | Construction method for laying multi-crossing and multi-turnout |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108978360A CN108978360A (en) | 2018-12-11 |
| CN108978360B true CN108978360B (en) | 2020-01-07 |
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| CN201810637187.4A Active CN108978360B (en) | 2018-06-20 | 2018-06-20 | Construction method for laying multi-crossing and multi-turnout |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8020493B2 (en) * | 2008-12-29 | 2011-09-20 | Universal City Studios Llc | Track-switching device and method |
| JP5693294B2 (en) * | 2011-02-28 | 2015-04-01 | 三菱重工業株式会社 | Bifurcation device and center-guided track system |
| MX2011004104A (en) * | 2011-04-18 | 2012-10-25 | Arturo Alvaro Ortiz Rivas | Check-rail system for crossing railways. |
| CN203320363U (en) * | 2013-07-04 | 2013-12-04 | 济钢集团有限公司 | Anti-derailment and wearing resistance railway switch |
| CN105803863A (en) * | 2015-12-30 | 2016-07-27 | 北京城建设计发展集团股份有限公司 | Construction method for comb-type turnout joint |
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