CN110550051B - Track line structure reserved with long-term splitting condition and construction method thereof - Google Patents
Track line structure reserved with long-term splitting condition and construction method thereof Download PDFInfo
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- CN110550051B CN110550051B CN201910901416.3A CN201910901416A CN110550051B CN 110550051 B CN110550051 B CN 110550051B CN 201910901416 A CN201910901416 A CN 201910901416A CN 110550051 B CN110550051 B CN 110550051B
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- 230000007774 longterm Effects 0.000 title claims abstract description 78
- 238000010276 construction Methods 0.000 title claims description 34
- 238000000034 method Methods 0.000 claims abstract description 5
- 230000007704 transition Effects 0.000 claims description 8
- 230000001174 ascending effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
- B61B1/00—General arrangement of stations, platforms, or sidings; Railway networks; Rail vehicle marshalling systems
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Abstract
The invention provides a track line structure for reserving a long-term splitting condition, which comprises two stations, a first near-term line track and a second near-term line track, wherein the outer sides of the two stations are reserved with spaces for arranging the first long-term reserved line track and the second long-term reserved line track respectively, the first near-term line track and the second near-term line track in front of the station stations are respectively provided with a turnout I and a turnout II, the turnout I and the turnout II are connected through a first single crossover, and the first near-term line track and the second near-term line track behind the station stations are provided with a turnout V and a turnout VI which are connected through a third single crossover. According to the invention, by adjusting the track line structure, the station and the line can be implemented in stages, compared with the traditional method of once building the double-island four-wire station and the post-station section, the investment and risk of recent engineering are greatly reduced, the normal operation of the recently built line is not influenced during disassembly, meanwhile, the function of convenient transfer of the two lines in the same direction and at the same station can be realized, and the engineering flexibility is strong.
Description
Technical Field
The invention belongs to the technical field of track traffic line design, and particularly relates to a track line structure reserved with long-term splitting conditions and a construction method thereof.
Background
With the rapid development of cities, urban planning is increasingly perfect, the important role of rail transit in urban traffic planning development is increasingly remarkable, and the operation organization forms of the rail transit are increasingly diversified. The long-term splitting condition of the track traffic reservation is considered, and is a problem to be considered in the development of the track traffic at present.
The reserved line long-term splitting condition needs to comprehensively consider factors in multiple aspects such as urban planning, line trend, surrounding environment, laying conditions and the like, the line arrangement structure of the reserved long-term splitting condition is commonly used at present to build a double-island four-wire station at one time, a near-term line is arranged on the inner side, the long-term line is arranged on the outer side, and part of engineering of the long-term line and the near-term line are built at one time. The single crossover line is arranged in front of the station and is connected with the long-term line, the cross crossover line and the parking turn-back line are arranged behind the station, and after the long-term line is built, the two lines can be transferred in the same direction and at the same station. In the construction of the long-term line, the station needs to be built once in the near term in consideration of not affecting the normal operation of the near-term line, and the engineering scale is large.
Fig. 1 shows a schematic diagram of a city track traffic reservation splitting engineering condition in the prior art, wherein a solid line is a recently constructed line 1, a broken line is a remotely constructed line 2, when the remotely constructed line is not constructed, a station is used as an intermediate station of the recently constructed line, and after the remotely constructed line is constructed, the station is adjusted to be a terminal station of the recently constructed line and is used as an intermediate station of the remotely constructed line, so that part of engineering of the remotely constructed line and the recently constructed line need to be constructed once, the recently constructed scale is large, a single transition line is arranged in front of the station, meanwhile, an interface of the remotely constructed line is reserved, and a cross transition line is arranged behind the station to meet the parking turn-back requirement of a train. Therefore, how to realize the construction condition of long-term splitting of the reserved line while reducing engineering investment and reducing influence on the surrounding environment is an urgent problem to be solved.
Disclosure of Invention
The invention aims to solve the problems of large engineering quantity, wide influence range on the periphery and large recent investment of the track traffic reservation splitting condition in the prior art.
The invention provides a track line structure for reserving a long-term splitting condition, which comprises two stations, a first near-term line track and a second near-term line track, wherein the first near-term line track and the second near-term line track are arranged between the two stations in parallel, spaces for arranging the first long-term reserved line track and the second long-term reserved line track are reserved outside the two stations respectively, a first turnout and a second turnout are arranged on the first near-term line track and the second near-term line track in front of the station respectively, the first turnout and the second turnout are connected through a first single transition line, a fifth turnout is arranged on the first near-term line track behind the station, a sixth turnout for connecting the second long-term reserved line track is arranged on the second near-term line track behind the station, and the fifth turnout and the sixth turnout are connected through a third single transition line.
Further, a second single crossover is further arranged behind the station of the station, two ends of the second single crossover are connected with the first recent line track and the second recent line track through a third turnout and a fourth turnout respectively, the third turnout is located between the station and a fifth turnout, the fourth turnout is located between the station and a sixth turnout, and the second single crossover and the third single crossover are reversely arranged.
Further, the distance between the third switch and the fifth switch is (2a+L+16) m, a is the distance from the front end of the switch to the switch center, and L is the length of the long-term train.
Further, the first recent line track and the second recent line track are arranged in parallel, and a space between the first recent line track and the second recent line track is 5m.
Further, both stations use widened side stations, with a station width of 10m.
In addition, the invention also provides a construction method of the track line structure with the reserved long-term splitting condition, which comprises the following steps:
Laying a first near-term line track and a second near-term line track between two stations, respectively arranging a turnout I and a turnout II on the first near-term line track and the second near-term line track in front of the station, and arranging a first single crossover to connect the turnout I and the turnout II so as to connect the first near-term line track and the second near-term line track; the first recent line track and the second recent line track behind the platform station are respectively provided with a turnout five and a turnout six, and a third single crossover is arranged to connect the turnout one and the turnout two, so that the connection between the recent construction line and the long-term construction line reserved on the outer side of the platform is realized.
Further, the construction method further comprises the construction of a long-term construction line, and the construction method comprises the following steps: a first near-term line track behind the turnout five is provided with a first rail, a third near-term line track between the platform and the turnout five is provided with a fourth near-term line track between the platform and the turnout six, a second rail is provided between the fourth turnout and the turnout six, the third turnout and the fourth turnout are connected through a second single crossover, and the second single crossover and the third single crossover are reversely arranged; a first long-term reserved line track and a second long-term reserved line track are laid on the outer sides of the two stations, the first long-term reserved line track is located at the rear end side of the station and is connected with a first near-term line track, and the second long-term reserved line track is located at the rear end side of the station and is connected with a second near-term line track through a turnout six; and removing the second recent line track part between the second rail and the sixth rail and the first recent line track part after the first rail.
Further, the first long-term reserved line track and the first near-term line track and the second long-term reserved line track and the second near-term line track are connected by adopting an R-300m curve.
Further, the second long-term reserved line track is separated from the first near-term line track and the second near-term line track by a vertical distance in a 28%upslope mode at the outbound station side.
Compared with the prior art, the invention has the beneficial effects that:
Compared with the traditional method of once building a double-island four-wire station and a station rear section, the track line structure for reserving the long-term splitting condition greatly reduces investment and risk of recent engineering, does not influence normal operation of the recently built line during splitting, can realize the function of convenient transfer of two lines in the same direction and with a station, and has strong engineering flexibility.
The present invention will be described in further detail with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic diagram of a circuit arrangement structure of a city rail transit reservation splitting condition in the prior art;
FIG. 2 is a schematic diagram of the layout of a recently constructed line in the present invention;
fig. 3 is a schematic diagram of a circuit arrangement structure after long-term splitting in the invention.
Reference numerals illustrate: 1. constructing a line in the near future; 2. constructing a line for a long term; 3. a first recent line track; 4. a second recent line track; 5. a first long-term reserved line track; 6. a second long-term reserved line track; 7. a first single crossover; 8. a turnout I; 9. a turnout II; 10. a station; 11. a turnout IV; 12. a turnout III; 13. a second single crossover; 14. fifth, the switch; 15. a turnout six; 16. a third single crossover; 17. a second gear; 18. and a first gear.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second" may include one or more such features, either explicitly or implicitly; in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
As shown in fig. 2, the present embodiment provides a track line structure for reserving a long-term split condition, which includes two stations 10 and a first recent line track 3 and a second recent line track 4 disposed in parallel between the two stations 10, wherein both the stations 10 employ widened side-type platforms (i.e., the stations are wider than a general side-type platform), the width of the stations 10 is preferably 10m, the first recent line track 3 and the second recent line track 4 are arranged in parallel, the distance between the two near-term line tracks is preferably 5m, and the distance between the first recent line track 3 and the second recent line track 4 is reduced, thereby reducing the occupation area of the recent construction line; on the basis, spaces for arranging a first long-term reserved line track 5 and a second long-term reserved line track 6 are reserved outside two platforms 10 respectively, as shown by dotted line parts in fig. 2, meanwhile, a turnout one 8 and a turnout two 9 are respectively arranged on a first near-term line track 3 and a second near-term line track 4 in front of the platform 10, the turnout one 8 and the turnout two 9 are connected through a first single crossover 7, and switching of a track train between the first near-term line track 3 and the second near-term line track 4 is realized through the first single crossover 7; the first near-term line track 3 behind the station 10 is provided with a turnout five 14, the second near-term line track 4 behind the station 10 is provided with a turnout six 15 for connecting the second far-term reserved line track 6, the turnout five 14 and the turnout six 15 are connected through a third single transition line 16, two tracks (namely the first far-term reserved line track 5 and the second far-term reserved line track 6) of the far-term construction line are respectively led out from the far end of the station, and the third single transition line 16 is used as a tie line of the far-term construction line and the near-term construction line, so that resource sharing between the two lines can be realized. According to the embodiment, on the basis of the line structure arrangement of the traditional reserved line conditions, the track line structure is adjusted, so that the station and the line can be implemented in stages, compared with the traditional method of once building the double-island four-wire station and the post-station interval, the investment and risk of a recent project are greatly reduced, normal operation of the recent line is not affected during splitting, meanwhile, the function of convenient transfer of two lines in the same direction and with a station can be realized, and the engineering flexibility is strong.
Further, in this embodiment, a second single crossover 13 is further disposed behind the station 10, two ends of the second single crossover 13 are connected with the first recent line track 3 and the second recent line track 4 through a third switch 12 and a fourth switch 11 respectively, the third switch 12 is located between the station 10 and a fifth switch 14, the fourth switch 11 is located between the station 10 and a sixth switch 15, the second single crossover 13 and the third single crossover 16 are reversely arranged, and the requirement of turning back and the requirement of tie setting of a long-term train are met through two groups of reverse single crossover settings. Specifically, the distance between the third switch 12 and the fifth switch 14 is preferably (2a+l+16) m, where a is the distance from the front end of the switch to the center of the switch, and L is the length of the long-term train.
On the basis, when a long-term construction line is further constructed, as shown in fig. 3, when the near-term construction line is split, under the condition that the safety distance is met, a first rail 3 of the near-term construction line behind a switch five 14 is provided with a first rail 18, and a second rail 17 is arranged between a switch four 11 and a switch six 15; a first long-term reserved line track 5 and a second long-term reserved line track 6 are laid on the outer sides of two platforms 10, the first long-term reserved line track 5 is located on the rear end side of the platform 10 station and is connected with the first near-term line track 3, and the second long-term reserved line track 6 is located on the rear end side of the platform 10 station and is connected with the second near-term line track 4; the second near-term track 4 section between the second rail 17 and the sixth rail 15 is removed, and the first near-term track 3 section after the first rail 18 is removed. After splitting, the station is adjusted to be a terminal station of a recent construction line, the station is an intermediate station of a long-term construction line, a first long-term reserved line track 5 and a second long-term reserved line track 6 of the long-term construction line are respectively led out from the far end of a platform 10, an R-300m curve is respectively connected with a first recent line track 3 and a second recent line track 4 of an original recent construction line, a third single transit line 16 between a turnout five 14 and a turnout six 15 is used as a connecting line of the recent construction line and the long-term construction line, the first long-term reserved line track 5 and the second long-term reserved line track 6 of the long-term construction line are respectively positioned on the outer sides of two platforms 10, the station is changed into a double-island station, and the two lines can be conveniently transferred in the same direction and the same platform. After the second long-term reserved line track 6 of the long-term construction line is out of the station, an ascending slope of 28%o is preferably adopted to rapidly pull the vertical distance between the second long-term reserved line track 6 and the recently constructed line (namely the first recently constructed line track 3 and the second recently constructed line track 4), and after the vertical distance reaches the interchange condition, the second long-term reserved line track 6 extends outwards across the recently constructed line interval. In this embodiment, the line splitting may debug the operation scheme in the period of normal outage of the recently constructed line, and the line splitting position is at the far end of the station, so that the normal operation of the recently constructed line is not affected.
In summary, by adjusting the track line structure, the station and the line can be implemented in stages, compared with the traditional method of once building the double-island four-wire station and the post-station section, the track line structure provided by the invention greatly reduces the investment and risk of the recent engineering, does not influence the normal operation of the recently built line during the splitting, can realize the function of conveniently transferring two lines in the same direction and at the same station, and has strong engineering flexibility.
The foregoing examples are merely illustrative of the present invention and are not intended to limit the scope of the present invention, and all designs that are the same or similar to the present invention are within the scope of the present invention.
Claims (7)
1. The utility model provides a track circuit structure of reservation long-term split condition, includes two platforms and parallel first recent circuit track and the recent circuit track of second of setting between two platforms, its characterized in that: the outer sides of the two stations are respectively reserved with a space for arranging a first long-term reserved line track and a second long-term reserved line track, a first switch and a second switch are respectively arranged on the first near-term line track and the second near-term line track in front of the station, the first switch and the second switch are connected through a first single transition line, a fifth switch is arranged on the first near-term line track behind the station, a sixth switch for connecting the second long-term reserved line track is arranged on the second near-term line track behind the station, and the fifth switch and the sixth switch are connected through a third single transition line;
The station is characterized in that a second single crossover is further arranged behind the station, two ends of the second single crossover are connected with a first recent line track and a second recent line track through a third turnout and a fourth turnout respectively, the third turnout is located between the station and a fifth turnout, the fourth turnout is located between the station and a sixth turnout, and the second single crossover and the third single crossover are reversely arranged; both stations employ widened side stations.
2. A track line structure for reserving a long-term split condition as claimed in claim 1, wherein: the distance between the third turnout and the fifth turnout is (2a+L+16) m, a is the distance from the front end of the turnout to the turnout center, and L is the length of the long-term train.
3. A track line structure for reserving a long-term split condition as claimed in claim 1, wherein: the first recent line track and the second recent line track are arranged in parallel, and the distance between the first recent line track and the second recent line track is 5m.
4. A construction method of a track line structure reserved with a long-term splitting condition, characterized in that the track line structure reserved with the long-term splitting condition as claimed in any one of claims 1 to 3 is adopted, and the process is as follows:
Laying a first near-term line track and a second near-term line track between two stations, respectively arranging a turnout I and a turnout II on the first near-term line track and the second near-term line track in front of the station, and arranging a first single crossover to connect the turnout I and the turnout II so as to connect the first near-term line track and the second near-term line track; the first recent line track and the second recent line track behind the platform station are respectively provided with a turnout five and a turnout six, and a third single crossover is arranged to connect the turnout one and the turnout two, so that the connection between the recent construction line and the long-term construction line reserved on the outer side of the platform is realized.
5. The construction method of a track line structure reserved for long-term splitting conditions as claimed in claim 4, further comprising the steps of constructing a long-term construction line by: a first near-term line track behind the turnout five is provided with a first rail, a third near-term line track between the platform and the turnout five is provided with a fourth near-term line track between the platform and the turnout six, a second rail is provided between the fourth turnout and the turnout six, the third turnout and the fourth turnout are connected through a second single crossover, and the second single crossover and the third single crossover are reversely arranged; a first long-term reserved line track and a second long-term reserved line track are laid on the outer sides of the two stations, the first long-term reserved line track is located at the rear end side of the station and is connected with a first near-term line track, and the second long-term reserved line track is located at the rear end side of the station and is connected with a second near-term line track through a turnout six; and removing the second recent line track part between the second rail and the sixth rail and the first recent line track part after the first rail.
6. The construction method of a track line structure for reserving a long-term splitting condition as claimed in claim 5, wherein the first long-term reserved line track and the first near-term reserved line track and the second long-term reserved line track and the second near-term reserved line track are connected by adopting an R-300m curve.
7. The construction method of a track line structure for reserving a long-term splitting condition as claimed in claim 5, wherein the second long-term reserved line track is separated from the first near-term line track and the second near-term line track by a vertical distance by adopting a 28%o ascending mode at the outbound side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910901416.3A CN110550051B (en) | 2019-09-23 | 2019-09-23 | Track line structure reserved with long-term splitting condition and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910901416.3A CN110550051B (en) | 2019-09-23 | 2019-09-23 | Track line structure reserved with long-term splitting condition and construction method thereof |
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| Publication Number | Publication Date |
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| CN110550051A CN110550051A (en) | 2019-12-10 |
| CN110550051B true CN110550051B (en) | 2024-05-17 |
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| CN201910901416.3A Active CN110550051B (en) | 2019-09-23 | 2019-09-23 | Track line structure reserved with long-term splitting condition and construction method thereof |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111497873B (en) * | 2020-05-29 | 2024-06-04 | 中铁第四勘察设计院集团有限公司 | Main line and branch line rail connecting structure capable of reducing engineering reserved scale and station comprising same |
| CN112482809B (en) * | 2020-11-24 | 2022-05-17 | 中铁四局集团第二工程有限公司 | In-situ rapid reconstruction and upgrade construction method for existing operation railway station |
| CN112793588A (en) * | 2021-01-22 | 2021-05-14 | 广州地铁设计研究院股份有限公司 | Subway line disassembling arrangement structure and construction method |
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| ES2344827B1 (en) * | 2010-03-30 | 2011-06-28 | Idelfonso Pablo Metro De Madrid, S.A. | METHOD AND METROPOLITAN TRANSPORT SYSTEM. |
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| CN104816728A (en) * | 2015-01-28 | 2015-08-05 | 铁道第三勘察设计院集团有限公司 | Underground station structure with stop line in urban rail transit project |
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| CN110550051A (en) | 2019-12-10 |
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