CN115305754A - Construction method for simultaneous double-line splicing of ballast tracks of high-speed railway - Google Patents
Construction method for simultaneous double-line splicing of ballast tracks of high-speed railway Download PDFInfo
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- CN115305754A CN115305754A CN202211118853.6A CN202211118853A CN115305754A CN 115305754 A CN115305754 A CN 115305754A CN 202211118853 A CN202211118853 A CN 202211118853A CN 115305754 A CN115305754 A CN 115305754A
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- 238000010276 construction Methods 0.000 title claims abstract description 40
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 15
- 239000010959 steel Substances 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 13
- 238000003466 welding Methods 0.000 claims abstract description 4
- 230000001174 ascending effect Effects 0.000 claims description 20
- 241001669679 Eleotris Species 0.000 claims description 8
- 239000002699 waste material Substances 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims description 2
- 238000004064 recycling Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims 1
- 210000001503 joint Anatomy 0.000 abstract description 4
- 230000007704 transition Effects 0.000 abstract description 3
- 238000007689 inspection Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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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
- E01B33/00—Machines or devices for shifting tracks, with or without lifting, e.g. for aligning track, for shifting excavator track
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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
- E01B2203/00—Devices for working the railway-superstructure
- E01B2203/01—Devices for working the railway-superstructure with track
- E01B2203/017—Devices for working the railway-superstructure with track removed or not present yet
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Abstract
The invention provides a construction method for simultaneously connecting two ballast tracks of a high-speed railway in a double-line manner, which comprises the following steps: 1) Laying the track panel on the pre-laying sections of the newly-built uplink and downlink; 2) The line is sealed at the skylight point, and the steel rail at the position of the shifting and connecting opening on the existing line is cut; 3) Directly shifting the track panel of the shifting grounding section, and butting the shifting connection interface of the existing uplink with the pre-laid section of the newly-built uplink to form a newly-built uplink track; 4) The rotating offset section of the existing uplink line is offset and rotated, and two ends of the rotating offset section are respectively butted with the dial-in closure of the existing downlink line and the pre-paved section of the newly-built downlink line to form a newly-built downlink line track; 5) Welding the steel rails at the butt joint positions on the newly-built up and down lines; 6) And (4) repairing the newly-built uplink and downlink lines, and opening the line after acceptance inspection is qualified. The method has the advantages of less required shifting and connecting tap holes, small construction working surface, small transition engineering amount, capability of completing shifting and connecting only by one skylight point, less influence on the existing line transportation and relatively lower investment cost.
Description
Technical Field
The invention belongs to the technical field of high-speed railway ballast track reconstruction engineering, and particularly relates to a construction method for simultaneous double-line dial-up connection of ballast tracks of a high-speed railway.
Background
With the rapid development of railways in recent years, the speed of trains is faster and faster, the running density is higher and higher, the construction difficulty of line dial-up is higher and higher, the line must be opened on time at a standard point, and the transportation of railways cannot be influenced. In order to reduce the influence on the existing business line to the maximum extent, the dial-up construction can only utilize the skylight point at night for operation. The dial-up connection has the characteristics of long construction time, large influence area, more professions, tight time requirement, high acceptance standard and the like, and is a difficult point and controllability project of high-speed railway reconstruction projects. At present, the high-speed railway ballasted track is poked and connected, the construction process has no mature and perfect standard, and no related experience and specification can be used for reference. Therefore, an economical and efficient ballasted track dial-up construction method is needed to guide the increasing number of ballasted track line dial-up projects of the domestic high-speed railway.
At present, in the field of railway reconstruction engineering, partial patents are published on construction structures and methods for track splicing, such as: patent CN213358180U discloses a high-speed railway ballastless track splicing structure, which locks a temporary steel rail through an assembled rail bearing platform, and performs geometric arrangement on a rail surface to complete temporary splicing, but the structure is only suitable for ballastless tracks and cannot be applied to ballasted tracks; patent CN203360958U discloses a railway business line construction track dials and connects translation device, and the device is built, is removed, demolishs the convenience, easy operation, and is with low costs, is fit for the operation construction in little space, but the device is only applied to the single line and dials and connects, can't satisfy the double-line and dial simultaneously and connect.
Disclosure of Invention
The invention aims to provide a construction method for simultaneously splicing two ballast tracks of a high-speed railway, which can at least solve part of defects in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a construction method for simultaneously connecting two ballast tracks of a high-speed railway in a poking manner comprises the following steps:
1) Laying track panels in pre-laid sections with the newly-built uplink and the newly-built downlink far away from the existing downlink and the existing uplink;
2) Closing the line at the skylight point, and cutting the steel rail at the position of the pull-in connection opening on the existing ascending line and the existing descending line;
3) Directly shifting the track panel in the range of the shifting and connecting sections of the existing uplink and the existing downlink, and butting the shifting and connecting opening of the existing uplink with the pre-laid section of the newly-built uplink to form a newly-built uplink track;
4) The method comprises the following steps that a rotary offset section of an existing uplink line is subjected to offset rotation at the crossing position of the existing uplink line and a designed newly-built downlink line, and two ends of the rotary offset section are respectively butted with a poke-in connector of the existing downlink line and a pre-laid section of the newly-built downlink line to form a newly-built downlink track;
5) Backfilling and finishing ballast on the newly-built uplink line and the newly-built downlink line, and welding new and old steel rails at the butt joint positions on the newly-built uplink line and the newly-built downlink line;
6) And (4) renovating and accepting the newly-built uplink line and the newly-built downlink line, and after the acceptance is qualified, ending the blocking, and opening the newly-built uplink line and the newly-built downlink line.
Further, before the steel rail at the position of the poking and connecting closure is cut in the step 2), the sleeper box of the rail row and the ballast in the sleeper box in the range of the poking and connecting section of the existing uplink and the existing downlink are subjected to air-clearing treatment.
Further, the step 3) of performing segmented shifting construction on the shifting connection section specifically comprises the following steps: directly carrying out shifting by adopting a large unit in a section with the shifting quantity of 0 to 5cm, and simultaneously carrying out uplink and downlink; and (4) carrying out dial-shift on the sections with dial-shift amount of 5cm to 3m by adopting a manual matching machine, and sequentially carrying out the existing uplink and the existing downlink.
Further, the rotating deviation section in the step 4) is within a length range of 150m from the dial-in connection interface to the dial-in connection direction on the existing uplink.
Further, the construction method for simultaneously performing double-line dial-up connection on the ballast track of the high-speed railway further comprises the step 7) of cleaning the waste areas with the existing downline and the existing upline and recycling the steel rails, the sleepers and the fasteners of the waste areas.
Compared with the prior art, the invention has the beneficial effects that:
(1) The construction method for simultaneously splicing the ballast tracks of the high-speed railway by the double lines is suitable for the field of the ballast tracks of the high-speed railway, and compared with the existing construction method for sequentially splicing the ballast tracks of the high-speed railway by the left line and the right line, the method has the advantages of less required splicing openings, small construction operation area, small transitional engineering quantity, capability of completing splicing by only one skylight point, less influence on the transportation of the existing lines and relatively lower investment cost.
(2) According to the construction method for the ballast track double-line simultaneous dial-up connection of the high-speed railway, the rotary offset section of the existing uplink line is subjected to offset rotation at the crossed position of the existing uplink line and the designed newly-built downlink line, and is in butt joint with the dial interface and the pre-paved section of the existing downlink line to form the newly-built downlink line track.
(3) The construction method for the simultaneous double-line shifting of the ballast track of the high-speed railway adopts different shifting methods for different sections, namely, the sections with the shifting quantity of 0 to 5cm are directly shifted by adopting a large unit, and the sections with the shifting quantity of 5 to 3m are shifted by adopting a manual matching machine, so that the construction efficiency is greatly improved, and the requirement of tight skylight time is met.
The present invention will be described in further detail below with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of two-line simultaneous dial-up connection of ballast tracks of a high-speed railway in the embodiment of the invention;
FIG. 2 is a plan view of a dial-up segment with an existing uplink and an existing downlink for direct dial-up in an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a direct dialing of a dialing ground segment for an existing uplink and an existing downlink in an embodiment of the present invention;
FIG. 4 is a plan view of a rotational offset segment of an existing uplink line in an embodiment of the present invention;
FIG. 5 is a cross-sectional view of a rotational offset segment of an existing ascending line in an embodiment of the present invention;
fig. 6 is a flow chart of the construction method for simultaneously splicing the ballast tracks of the high-speed railway in a double-track manner.
Description of reference numerals: 1. newly building an uplink line; 2. newly building a downlink; 3. existing descending lines; 4. existing uplink lines; 5. pre-paving a land section; 6. a waste section; 7. rotating the offset section; 8. dialing a grounding section; 9. a steel rail; 10. a sleeper; 11. a fastener 12 and a railway ballast; 13. and (4) track panels.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an interference connection or an integral connection; the specific meanings of the above terms in the present invention can be understood as specific cases to those of ordinary skill in the art; in the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1 and fig. 6, the embodiment provides a construction method for simultaneously performing double-line splicing on ballast tracks of a high-speed railway, and specifically includes the following steps:
firstly, before dial-up, preparing materials such as sleepers, railway ballast and the like and machines such as a gate-type track lifting and lining machine, a rail sawing machine, a drilling machine, an excavator and the like in place and completing debugging; and laying a track panel 13 on the pre-laying section 5 with a distance between the newly-built uplink 1 and the newly-built downlink 2 and a distance between the newly-built downlink 3 and the newly-built uplink 4. Wherein, the track panel 13 includes the rail 9, the sleeper 10, the fastener 11, etc., and its laying construction process is prior art, and will not be described herein again.
Then, the existing ascending line 4 and the existing descending line 3 are blocked at a skylight point, the fasteners 11 at the positions of the shifting and connecting closure openings of the existing ascending line 4 and the existing descending line 3 are loosened and unloaded, meanwhile, the ballast 12 in the sleeper box of the track panel 13 in the shifting and connecting range is emptied, the ballast 12 in the sleeper box 10 of the track panel 13 in the shifting and connecting range is emptied, and the left and right steel rails 9 at the positions of the shifting and connecting closure openings of the existing ascending line 4 and the existing descending line 3 are cut.
As shown in fig. 2 and fig. 3, the track panel 13 within the range of the pull-in land section 8 of the existing ascending line 4 and the existing descending line 3 is directly pulled and moved, and the pull-in interface of the existing ascending line 4 is butted with the pre-laying land section 5 of the newly-built ascending line 1 to form a newly-built ascending line track. Optimally, different shifting and connecting methods are adopted aiming at different positions of the shifting and connecting sections 8 of the existing uplink 4 and the existing downlink 3, so that the construction efficiency is greatly improved, and the requirement of tight skylight time is met; specifically, a large unit is adopted to directly shift sections with shifting amounts of 0 to 5cm, an existing uplink 4 and an existing downlink 3 are simultaneously performed, manual cooperation machinery is adopted to shift sections with shifting amounts of 5cm to 3m, and the existing uplink 4 and the existing downlink 3 are sequentially performed; the mechanical shifting construction of the track panel 13 is the prior art, and the specific operation process is not described herein again.
As shown in fig. 4 and 5, at the crossing position of the existing ascending line 4 and the newly-built descending line 1, that is, the rotating offset section 7 of the existing ascending line 4, specifically, in this example, the rotating offset section 7 is a length range of about 150m from the dial-in connector to the dial-in direction on the existing ascending line 4, the left and right strands of steel rails 9 of the existing ascending line 4 in this range are cut, and the track panel 13 in this range is offset and rotated by a certain angle, so that the two ends of the rail panel are respectively butted with the dial-in connector of the existing descending line 3 and the pre-laid section 5 of the newly-built descending line 2, and the newly-built descending line track is formed. The rotation offset construction of the track panel 13 is the prior art, and the specific operation process thereof is not described herein again.
This embodiment is dialled through the design and is connect the district 8 and rotatory skew district 7 to dialling the construction mode that the district 8 directly dials to move and 7 skew rotations of pair rotation skew districts combine together, can be so that under limited construction operation face and skylight point condition, realized that the double-line is dialled simultaneously and is connect, not only can reduce the transition engineering volume, can also realize once only opening, and factor of safety is big.
After the shifting and rotating shifting construction is completed, welding new and old steel rails 9 at the positions of butt joints (namely, shifting connection openings and cutting openings) on the newly-built uplink 1 and the newly-built downlink 2, and screwing a fastener 11; and then, renovating the newly-built uplink line 1 and the newly-built downlink line 2, specifically comprising the steps of backfilling ballast 12, adjusting track distance and the like, finishing blockade after the inspection confirms that the line opening condition is met, and opening the newly-built uplink line 1 and the newly-built downlink line 2.
Finally, the abandoned land 6 having the existing ascending line 4 and the existing descending line 3 is cleaned, and the rails 9, the sleepers 10, the fasteners 11, and the like of the abandoned land 6 are recovered.
Compared with the existing high-speed railway ballast track left and right line sequential shifting connection method, the construction method for the high-speed railway ballast track double-line simultaneous shifting connection provided by the embodiment has the advantages that the required shifting connection joint is few, the construction operation surface is small, the transition engineering quantity is small, the shifting connection can be completed only by one skylight point, the influence on the existing line transportation is small, and the investment cost is relatively low.
The above examples are merely illustrative of the present invention and should not be construed as limiting the scope of the invention, which is intended to be covered by the claims and any design similar or equivalent to the scope of the invention.
Claims (5)
1. A construction method for simultaneously splicing two ballast track lines of a high-speed railway is characterized by comprising the following steps:
1) Laying track panels in pre-laid sections which are far away from the existing downlink and the existing uplink on the newly-built uplink and the newly-built downlink;
2) The method comprises the following steps of (1) sealing a line at a skylight point, and cutting steel rails at the positions of pull-up and connection openings of an existing uplink line and an existing downlink line;
3) Directly shifting the track panel within the shifting and connecting sections of the existing ascending line and the existing descending line, and butting the shifting and connecting gap of the existing ascending line with the pre-laid section of the newly-built ascending line to form a newly-built ascending line track;
4) The method comprises the following steps that a rotary offset section of an existing uplink line is subjected to offset rotation at the crossing position of the existing uplink line and a designed newly-built downlink line, and two ends of the rotary offset section are respectively butted with a poke-in connector of the existing downlink line and a pre-laid section of the newly-built downlink line to form a newly-built downlink track;
5) Carrying out ballast backfilling and finishing on the newly-built uplink and the newly-built downlink, and welding new and old steel rails at the positions of upper butt joints of the newly-built uplink and the newly-built downlink;
6) And (4) renovating and accepting the newly-built uplink line and the newly-built downlink line, and after the acceptance is qualified, ending the blocking, and opening the newly-built uplink line and the newly-built downlink line.
2. The construction method for the simultaneous double-line shifting connection of the ballast tracks of the high-speed railway according to claim 1, wherein before the steel rail at the shifting connection gap position is cut in the step 2), the sleeper boxes of the track panel and the ballast in the sleeper boxes are subjected to the emptying treatment within the shifting connection section range of the existing ascending line and the existing descending line.
3. The construction method for the double-line simultaneous dial-up connection of the ballast tracks of the high-speed railway according to claim 1, wherein the step 3) is implemented by performing segmented dial-up construction on the dial-up connection section, and specifically comprises the following steps: directly carrying out shifting by adopting a large unit in a section with the shifting quantity of 0 to 5cm, and simultaneously carrying out uplink and downlink; and (4) carrying out dial-shift on the sections with dial-shift amount of 5cm to 3m by adopting a manual matching machine, and sequentially carrying out the existing uplink and the existing downlink.
4. The construction method for the double-line simultaneous dial-up connection of the ballast tracks of the high-speed railway according to claim 1, wherein the rotary offset section in the step 4) is within a length range of 150m from the dial-up connection tap to the dial-up connection direction on the existing uplink.
5. The construction method for the simultaneous double-line shifting connection of the ballast tracks of the high-speed railway according to claim 1, further comprising the step 7) of cleaning waste areas with existing descending lines and existing ascending lines and recycling steel rails, sleepers and fasteners of the waste areas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211118853.6A CN115305754A (en) | 2022-09-15 | 2022-09-15 | Construction method for simultaneous double-line splicing of ballast tracks of high-speed railway |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211118853.6A CN115305754A (en) | 2022-09-15 | 2022-09-15 | Construction method for simultaneous double-line splicing of ballast tracks of high-speed railway |
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| CN115305754A true CN115305754A (en) | 2022-11-08 |
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| CN202211118853.6A Pending CN115305754A (en) | 2022-09-15 | 2022-09-15 | Construction method for simultaneous double-line splicing of ballast tracks of high-speed railway |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4862807A (en) * | 1983-07-12 | 1989-09-05 | Cimarron Technology Ltd. | Passive railway switching system |
| CN1037751A (en) * | 1988-05-18 | 1989-12-06 | 弗朗茨普拉瑟尔铁路机械工业有限公司 | The machinery that the circuit that shifted laterally is made up of rail and the horizontal pillow of laying a railway track is used |
| CN102286939A (en) * | 2011-08-09 | 2011-12-21 | 中铁二十四局集团有限公司 | Beam moving and connecting construction method of existing viaducts in urban rail transits |
| WO2015155399A1 (en) * | 2014-04-11 | 2015-10-15 | Ferrovial Agroman, S.A. | Method for laying railway tracks |
| WO2017185918A1 (en) * | 2016-04-29 | 2017-11-02 | 中铁第四勘察设计院集团有限公司 | Cpiii planar network measurement method |
| CN111893819A (en) * | 2020-07-20 | 2020-11-06 | 中铁二院工程集团有限责任公司 | High-speed railway ballastless track dial-joint structure |
-
2022
- 2022-09-15 CN CN202211118853.6A patent/CN115305754A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4862807A (en) * | 1983-07-12 | 1989-09-05 | Cimarron Technology Ltd. | Passive railway switching system |
| CN1037751A (en) * | 1988-05-18 | 1989-12-06 | 弗朗茨普拉瑟尔铁路机械工业有限公司 | The machinery that the circuit that shifted laterally is made up of rail and the horizontal pillow of laying a railway track is used |
| CN102286939A (en) * | 2011-08-09 | 2011-12-21 | 中铁二十四局集团有限公司 | Beam moving and connecting construction method of existing viaducts in urban rail transits |
| WO2015155399A1 (en) * | 2014-04-11 | 2015-10-15 | Ferrovial Agroman, S.A. | Method for laying railway tracks |
| WO2017185918A1 (en) * | 2016-04-29 | 2017-11-02 | 中铁第四勘察设计院集团有限公司 | Cpiii planar network measurement method |
| CN111893819A (en) * | 2020-07-20 | 2020-11-06 | 中铁二院工程集团有限责任公司 | High-speed railway ballastless track dial-joint structure |
| WO2022017278A1 (en) * | 2020-07-20 | 2022-01-27 | 中铁二院工程集团有限责任公司 | Ballastless track connection structure of high-speed railway |
Non-Patent Citations (2)
| Title |
|---|
| 李向军: "轨道工程线路拨接施工技术", 《价值工程》, 30 April 2022 (2022-04-30), pages 87 - 89 * |
| 陈尚营: "通宵鏖战七小时 中国高铁为"江淮运河"改道", pages 1 - 4, Retrieved from the Internet <URL:https://baijiahao.baidu.com/s?id=1698153305272653009&wfr=spider&for=pc> * |
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