CN112590827A - Low-vacuum pipeline taking-in and taking-off system, running vehicle and transportation system - Google Patents
Low-vacuum pipeline taking-in and taking-off system, running vehicle and transportation system Download PDFInfo
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- CN112590827A CN112590827A CN202011565649.XA CN202011565649A CN112590827A CN 112590827 A CN112590827 A CN 112590827A CN 202011565649 A CN202011565649 A CN 202011565649A CN 112590827 A CN112590827 A CN 112590827A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
- B61B13/00—Other railway systems
- B61B13/10—Tunnel systems
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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
- B61B1/02—General arrangement of stations and platforms including protection devices for the passengers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D19/00—Door arrangements specially adapted for rail vehicles
- B61D19/02—Door arrangements specially adapted for rail vehicles for carriages
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D19/00—Door arrangements specially adapted for rail vehicles
- B61D19/02—Door arrangements specially adapted for rail vehicles for carriages
- B61D19/026—Safety devices for preventing passengers from being injured by movements of doors or variations in air pressure
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- Mechanical Engineering (AREA)
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- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention relates to the field of rail transit, in particular to a taking-in and taking-off system of a low-vacuum pipeline, a running vehicle and a transportation system, wherein the taking-in and taking-off system comprises a vehicle door, a platform door and a sealing device, and the platform door is hermetically connected with the low-vacuum pipeline; the vehicle door is connected with the vehicle in a sealing mode, the vehicle door is arranged on the outer side of the sealing device, the sealing device is connected with the inner side of the vehicle through a sliding mechanism, when the vehicle stops, the sealing device slides towards the direction of the platform door, the sealing device, the low-vacuum pipeline on the inner side of the platform and the vehicle form a closed space, and the platform door and the vehicle door are opened to form a boarding and alighting channel. According to the embodiment of the invention, the sealing device in the vehicle is in sealing butt joint with the platform, so that the connection time is short, and the transportation efficiency is high; the sealing performance is good, and only the regular vacuum pipeline is needed for vacuum pumping without vacuum pumping every time; in addition, the sealing technology is mainly used on vehicles, the technology is simpler, and the later maintenance cost is low.
Description
Technical Field
The invention relates to the field of rail transit, in particular to a taking and landing system, a running vehicle and a transportation system of a low-vacuum pipeline.
Background
In the prior art, any ground traffic tool including automobiles, high-speed rails, magnetic levitation and the like is limited by air resistance and aerodynamic noise, the commercial running speed of the ground traffic tool is not more than 400km/h, and if the ground traffic tool is required to reach higher running speed, the ground traffic tool is preferably placed in a vacuum or low-vacuum pipeline. The low-vacuum pipeline transportation system is a vehicle system which runs in a low-atmospheric-pressure (10-20KPa) or high-vacuum sealed pipeline, and mainly comprises vehicles, pipelines, tracks, stations, turnouts, vacuum monitoring, escape systems and the like. The low vacuum pipeline transportation system is different from a high-speed rail in taking and landing, and passengers need to overcome the defect that vacuum in a pipeline enters a vehicle, in the process, the passengers are firstly prevented from being exposed in vacuum, then air in the atmosphere and the vehicle is reduced as much as possible to enter a vacuum pipeline, and finally the passengers need to be ensured to get on and off the vehicle safely and conveniently without influencing the normal operation of the system.
The method adopted in the prior art is to design the vacuum pipeline in sections, and the vacuum pipeline is divided into a buffer area and an operation area, a sealing door is arranged between the buffer area and the operation area, and the vacuum degree of the operation area is ensured through the sealing door, for example: assuming that a route is provided with three stations, namely an initial station, an intermediate station and a terminal station, as shown in fig. 1, each station is provided with a buffer area consisting of 1 station sealing door and 2 section sealing doors (or end sealing doors), and the length of the buffer area is determined according to the acceleration and deceleration capacity, the braking distance and the departure interval of a vehicle; in an initial state, all end parts and station sealing doors are closed, the interval sealing door is opened, and low pressure or vacuum is kept in the pipeline; when the vehicle enters the buffering area of the starting station, the end sealing door and the sealing door of the starting station are opened, the interval sealing door is closed, and passengers get on the vehicle after the vehicle enters the buffering area of the starting station; after getting on the vehicle, closing the end sealing door and the starting station sealing door, opening the starting station interval sealing door, keeping low pressure or vacuum in the pipeline, and enabling the vehicle to run out; the vehicle drives into the buffer area of the middle station, the sealing doors of the sections at the two ends are closed, the sealing door of the middle station is opened, and passengers take in and go out; closing the sealing door of the intermediate station, opening the sealing door of the interval, keeping low pressure or vacuum in the pipeline, and driving out the vehicle; and finally, the vehicle drives into a terminal station, the sealing door of the closed area is opened, the sealing door at the end part and the sealing door at the terminal station are opened, and passengers get off the vehicle. It has the following disadvantages:
1. the vehicle needs to pass through the buffer area every time when entering or exiting the station, air in the buffer area of the station enters the vacuum pipeline to cause the air pressure to rise, and the air pressure in the pipeline must be kept within the technical requirement range through the work of the vacuum pump; the time for vacuumizing or inflating air in the buffer area is long, so that the transportation efficiency is reduced; and a large amount of electric energy is consumed, which causes energy waste.
2. The sealing technology for the vacuum sealing door on the track is complex, the number of the sealing doors is large, the sealing doors are opened and closed frequently, and the later maintenance cost is very high.
Disclosure of Invention
In view of the technical defects and technical drawbacks in the prior art, embodiments of the present invention provide an elevator system, a running vehicle, and a transportation system for a low vacuum pipe, which overcome or at least partially solve the above problems, reduce the increase of vacuum degree in the pipe due to passengers getting on or off the vehicle, improve transportation efficiency, simplify the arrangement of seals in the pipe, and save maintenance cost.
The embodiment of the invention provides an taking-in and landing system of a low vacuum pipeline, which is arranged in the low vacuum pipeline and comprises a vehicle door, a platform door and a sealing device, wherein the platform door is connected with the low vacuum pipeline in a sealing way; the vehicle door is connected with the vehicle in a sealing mode, the vehicle door is arranged on the outer side of the sealing device, the sealing device is connected with the inner side of the vehicle through a sliding mechanism, when the vehicle stops, the sealing device slides towards the direction of the platform door, the sealing device, the low-vacuum pipeline on the inner side of the platform and the vehicle form a closed space, and the platform door and the vehicle door are opened to form a boarding and alighting channel.
Furthermore, the sliding mechanism is a sliding chute arranged at the upper end and the lower end of the interior of the vehicle, the sealing device is arranged into an annular sealing pipeline, and the upper end and the lower end of the exterior of the annular sealing pipeline are provided with sliding blocks; the sliding block slides back and forth along the direction of the sliding groove, and a sealing element is arranged between the sliding block and the sliding groove.
Furthermore, the platform door is arranged on the outer side of the platform of the low vacuum pipeline, and an annular sealing structure matched with the outer edge of the annular sealing pipeline is arranged on an inner frame of the platform of the low vacuum pipeline.
Further, the vehicle door is arranged on the outer side of the annular sealing pipeline, the vehicle door is connected with the outer side of the annular sealing pipeline in a sealing mode, and the annular sealing pipeline, the vehicle and the vehicle door form a closed space.
Furthermore, the sealing device is provided with two annular sealing pipelines which are respectively arranged on the side of a vehicle door of the vehicle, the annular sealing pipelines are connected through a driving shaft, and a limiting sealing mechanism of the annular sealing pipelines is arranged in the vehicle.
Furthermore, the low vacuum pipeline corresponding to the platform door is provided with a stepped channel, and the height of the outer side of the platform door is greater than the height of the inner side of the platform.
Furthermore, after the vehicle enters the platform and the vehicle door is detected to be aligned with the door opening of the platform, the sealing device moves towards the two sides of the vehicle door, the outer side of the sealing device is hermetically connected with the inner frame of the platform in the low vacuum pipeline, and the inner side of the sealing device is hermetically connected with the vehicle; sequentially opening a platform door and a vehicle door to form a boarding and alighting channel from the vehicle to the platform; after the passengers get on or off the train, the train door and the platform door are closed in sequence, the sealing device is retracted, and the train door is reset.
As another aspect of the present invention, the present embodiment further provides a running vehicle with a low vacuum pipeline, the running vehicle includes a door and a sealing device, the door is disposed outside the sealing device, and the sealing device, the door and the vehicle are hermetically connected; the sealing device is provided with one or two annular sealing pipelines corresponding to the vehicle door, and the annular sealing pipelines are hermetically and slidably connected with the vehicle through a sliding mechanism.
As another aspect of the present invention, the present embodiment further provides a transportation system of a low vacuum pipeline, where the transportation system includes any one of the above-mentioned boarding and alighting systems of a low vacuum pipeline.
The embodiment of the invention at least realizes the following technical effects:
the embodiment of the invention is designed for a taking-in and landing system in the vacuum pipeline transportation process, and the sealing between a vehicle and a platform is realized by arranging a sealing device which can slide and stretch in the vehicle, so that the normal operation of the vacuum pipeline system is not influenced while the safe, convenient and quick taking of passengers is ensured; moreover, the vehicles enter and exit the station only need to be in sealed butt joint with the station platform through the sealing devices in the vehicles, the connection time is short, and the transportation efficiency is high; the sealing performance is good, and only the regular vacuum pipeline is needed for vacuum pumping without vacuum pumping every time; in addition, the sealing technology is mainly used on vehicles, the technology is simpler, and the later maintenance cost is low.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic view of a passenger boarding and alighting system in the prior art;
FIG. 2 is a schematic view of the station arrangement of the low vacuum piping;
fig. 3 is an overall schematic view of an elevator system of a low vacuum pipeline according to an embodiment of the invention;
FIG. 4 is a cross-sectional view of a driving state of the low vacuum duct landing system according to the embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of a docking station of the landing system of the low vacuum pipeline according to the embodiment of the present invention;
fig. 6 is a schematic cross-sectional view illustrating a passenger boarding and alighting state of the boarding and alighting system with a low-vacuum duct according to an embodiment of the present invention.
Description of the drawings: 1. a low vacuum line; 2. a station; 3. a vehicle; 4. a vehicle door; 5. a platform door; 6. a sealing device; 7. a sliding mechanism; 8. an annular closed structure; 9. spacing sealing mechanism.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
The figures and the following description depict alternative embodiments of the invention to teach those skilled in the art how to make and use the invention. Some conventional aspects have been simplified or omitted for the purpose of teaching the present invention. Those skilled in the art will appreciate that variations or substitutions from these embodiments will fall within the scope of the invention. Those skilled in the art will appreciate that the features described below can be combined in various ways to form multiple variations of the invention. Thus, the present invention is not limited to the following alternative embodiments, but is only limited by the claims and their equivalents.
In one embodiment, as shown in fig. 2 to 6, there is provided an embarkation and landing system of a low vacuum duct, the embarkation and landing system is arranged in a low vacuum duct 1, the low vacuum duct 1 comprises a platform 2, the embarkation and landing system comprises a vehicle door 4, a platform door 5 and a sealing device 6, the platform door 5 is connected with the low vacuum duct 1 in a sealing way; the vehicle door 4 is connected with the vehicle 3 in a sealing mode, the vehicle door 4 is arranged on the outer side of the sealing device 6, the sealing device 6 is connected with the inner side of the vehicle 3 through the sliding mechanism 7, when the vehicle 3 stops, the sealing device 6 slides towards the direction of the platform door 5, the sealing device 6, the low vacuum pipeline 1 on the inner side of the platform 2 and the vehicle 3 form a closed space, and the platform door 5 and the vehicle door 4 are opened to form a boarding and alighting channel.
In this embodiment, the boarding and alighting system mainly comprises a platform door, a vehicle sealing system and the like, wherein in a normal state, the platform door and the vacuum pipeline system are in a sealing state to ensure that the vacuum pipeline cannot enter air, the vehicle door and the vehicle are in a sealing state, the sealing device and the vehicle are in sealing installation, a movable matching part between the sealing device and the vehicle is sealed through a sealing piece, and the interior and the vacuum pipeline are always in an isolated state in the driving process of the vehicle.
This embodiment sets up mobilizable sealing device in the inside door of vehicle, when reaching the platform and needing the passenger to get on or off the bus, sealing device drives the door and removes, forms sealed space through the low vacuum pipeline that sealing device and platform correspond, only need in vehicle internally mounted portable sealing device and carry out the inboard sealed butt joint of platform can, easy operation, it is convenient to maintain, with low costs.
In one embodiment, the sliding mechanism 7 is a sliding chute arranged at the upper end and the lower end inside the vehicle 3, the sealing device is arranged as an annular sealing pipeline, and the upper end and the lower end outside the annular sealing pipeline are provided with sliding blocks; the sliding block slides back and forth along the direction of the sliding groove, and a sealing element is arranged between the sliding block and the sliding groove.
In this embodiment, the shape of the annular sealing pipeline can be determined according to the shape of a carriage and/or the shape of a vehicle door, and for convenience of installation and maintenance, the cross section can be set to be rectangular, wherein the sliding mechanism can be in a sliding groove form, and can also be in other structures capable of realizing sealing movement, for example, the sliding expansion and contraction of the annular sealing pipeline is controlled by a driving shaft, the circumference of the annular sealing pipeline is in interference fit with the inside of a vehicle, and the situation of air leakage cannot occur in the sliding process.
In one embodiment, the platform door 5 is arranged outside the platform 2 of the low vacuum pipe 1, and the inner frame of the low vacuum pipe platform 2 is provided with an annular closing structure 8 which is matched with the outer edge of the annular sealing pipe.
In this embodiment, an annular sealing structure matched with the sealing device is arranged inside the low vacuum pipeline corresponding to the platform to ensure gas isolation, wherein the annular sealing structure may be a flexible sealing strip with a sealing function or other sealing structures.
In one embodiment, the vehicle door 4 is disposed outside an annular sealing duct, and the vehicle door 4 is connected to the outside of the annular sealing duct in a sealing manner, and the annular sealing duct forms a closed space with the vehicle 3 and the vehicle door 4.
In this embodiment, the vehicle door may be connected to the sealing device through a hinge structure, or may be controlled to open or close through an electrical device, and the vehicle door is disposed outside the sealing device and moves along with the movement of the sealing device. Has the advantages of convenient installation, good sealing property and the like.
In one embodiment, the sealing device 6 is provided with two annular sealing pipelines which are respectively arranged on the door side of the vehicle 3 and are connected through a driving shaft, and the vehicle 3 is internally provided with a limit sealing mechanism 9 of the annular sealing pipelines.
The station of the vacuum pipeline transportation system is similar to a high-speed rail station and is divided into a plurality of platforms and parking lanes, and in the embodiment, passengers can get on or off the platform at two sides of the pipeline and also can get on or off the platform at one side. The annular sealing pipelines on two sides can be controlled to slide at the same time, and the annular sealing pipeline on one side can be controlled to slide only.
In one embodiment, the low vacuum pipe 1 corresponding to the platform door 5 is provided with a stepped channel, and the height of the outer side of the platform door 5 is greater than the height of the inner side of the platform.
In this embodiment, can set up the passageway of echelonment through the inside top of platform, guarantee sealing device and set up the vacuum pipe closely to cooperate with the lower position, the door has certain space of opening, more can practice thrift the space.
In one embodiment, after the vehicle 3 enters the platform 2 and the detection vehicle door 5 is aligned with the door opening of the platform 2, the sealing device 6 moves towards two sides of the vehicle door 4, the outer side of the sealing device 6 is hermetically connected with the inner frame of the platform 2 in the low vacuum pipeline 1, and the inner side of the sealing device is hermetically connected with the vehicle 3; sequentially opening a platform door 5 and a vehicle door 4 to form a boarding and alighting channel from the vehicle to the platform; after the passengers get on and off the train, the train door 4 and the platform door 5 are closed in sequence, the sealing device is retracted, and the train door is reset.
In this embodiment, two sides or one side of the vacuum pipeline in the station are provided with platforms, each platform corresponds to one or a plurality of similar platform doors for passengers to get on or off, the platform is provided with a sealing door or a similar sealing door device, as shown in the attached drawings of fig. 5-6, when a vehicle stops at the platform, the vehicle door is aligned to the platform door opening, the sealing device is controlled to slide, the annular sealing pipeline is sealed with an external sealing groove of an inner frame of the platform door, and the platform door and the vehicle door are opened in sequence to form a passage from the vehicle to the platform; the passengers get on and off the train, after the passengers get on and off the train, the train door and the platform door are closed in sequence, the sealing device is retracted, and the train can continue to run to the next station as shown in the state of figure 4.
In this embodiment, a trace amount of air may enter the vacuum pipeline during the operation of the lifting system, but the vacuum degree of the vacuum pipeline is hardly affected due to the small amount of air, and the vacuum pipeline system may be vacuumized regularly. The embodiment of the invention can be suitable for multi-section marshalling vehicles by increasing the number of platform doors.
Based on the same inventive concept, the embodiment of the present invention further provides a running vehicle of a low vacuum pipeline and a transportation system of a low vacuum pipeline, and the principle of the problem solved by the implementation is performed on the basis of the taking and landing system of a low vacuum pipeline of the foregoing embodiment, so that the implementation of the running vehicle of a low vacuum pipeline and the transportation system of a low vacuum pipeline can be referred to the embodiment of the taking and landing system of a low vacuum pipeline, and repeated details are omitted.
The embodiment also provides a running vehicle with the low vacuum pipeline, the running vehicle comprises a vehicle door and a sealing device, the vehicle door is arranged on the outer side of the sealing device, and the sealing device, the vehicle door and the vehicle are in sealing connection; the sealing device is provided with one or two annular sealing pipelines corresponding to the vehicle door, and the annular sealing pipelines are hermetically and slidably connected with the vehicle through a sliding mechanism.
In the embodiment, the vehicle is provided with a vehicle sealing device with a telescopic function, and sealing or similar sealing is realized between the vehicle and the vehicle sealing device; the vehicle may be sealed from the outside to shield the vacuum. The isolation of the low vacuum pipeline from the space where passengers get on and off the vehicle can be realized through the movement of the vehicle internal device, the structure is simple, and the operation is convenient.
The embodiment also provides a transportation system of the low vacuum pipeline, which comprises the taking and landing system of the low vacuum pipeline.
The embodiment provides a solution to the problem of taking passengers on and off in the low-vacuum pipeline, and ensures that the passengers can get on and off the vehicle safely and conveniently under the condition of ensuring that the vacuum pipeline is airtight, and reduces the maintenance cost of the vacuum degree in the pipeline, thereby improving the speed of taking passengers off and reducing the operation cost.
It should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the invention and aiding in the understanding of one or more of the various inventive aspects. However, the method of the invention should not be construed to reflect the intent: that the invention as claimed requires more features than are expressly recited in each claim. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (9)
1. The taking-in and taking-off system of the low vacuum pipeline is arranged in the low vacuum pipeline and is characterized by comprising a vehicle door, a platform door and a sealing device, wherein the platform door is connected with the low vacuum pipeline in a sealing way; the vehicle door is connected with the vehicle in a sealing mode, the vehicle door is arranged on the outer side of the sealing device, the sealing device is connected with the inner side of the vehicle through a sliding mechanism, when the vehicle stops, the sealing device slides towards the direction of the platform door, the sealing device, the low-vacuum pipeline on the inner side of the platform and the vehicle form a closed space, and the platform door and the vehicle door are opened to form a boarding and alighting channel.
2. The system for taking in and out the low vacuum duct according to claim 1, wherein the sliding mechanism is a sliding groove provided at upper and lower ends of an interior of the vehicle, the sealing device is provided as an annular sealing duct, and upper and lower ends of an exterior of the annular sealing duct are provided with sliding blocks; the sliding block slides back and forth along the direction of the sliding groove, and a sealing element is arranged between the sliding block and the sliding groove.
3. The system according to claim 2, wherein the platform door is disposed outside the platform of the low vacuum pipe, and the inner frame of the platform of the low vacuum pipe is provided with an annular sealing structure engaged with the outer edge of the annular sealing pipe.
4. The system according to claim 2, wherein the door is disposed outside an annular sealing duct, the door is hermetically connected to the outside of the annular sealing duct, and the annular sealing duct forms a closed space with the vehicle and the door.
5. The system according to claim 1, wherein the sealing means is provided with two annular sealing pipes which are respectively provided on the door side of the vehicle, the annular sealing pipes are connected by a driving shaft, and a limit sealing mechanism of the annular sealing pipes is provided in the vehicle.
6. The system for ascending and descending a low vacuum duct according to claim 1, wherein the low vacuum duct corresponding to the platform door is provided with a stepped passage, and the height of the outer side of the platform door is greater than the height of the inner side of the platform.
7. The system for taking in and off a low vacuum duct according to any one of claims 1 to 6, wherein the sealing means is moved to both sides of the door when the door is detected to be aligned with the doorway of the station after the vehicle enters the station, the outer side of the sealing means is hermetically connected to the inner frame of the station in the low vacuum duct, and the inner side of the sealing means is hermetically connected to the vehicle; sequentially opening a platform door and a vehicle door to form a boarding and alighting channel from the vehicle to the platform; after the passengers get on or off the train, the train door and the platform door are closed in sequence, the sealing device is retracted, and the train door is reset.
8. The running vehicle with the low vacuum pipeline is characterized by comprising a vehicle door and a sealing device, wherein the vehicle door is arranged on the outer side of the sealing device, and the sealing device, the vehicle door and the vehicle are in sealing connection; the sealing device is provided with one or two annular sealing pipelines corresponding to the vehicle door, and the annular sealing pipelines are hermetically and slidably connected with the vehicle through a sliding mechanism.
9. A transport system for a low vacuum pipe, comprising the low vacuum pipe boarding and alighting system according to any one of claims 1 to 7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011565649.XA CN112590827A (en) | 2020-12-25 | 2020-12-25 | Low-vacuum pipeline taking-in and taking-off system, running vehicle and transportation system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011565649.XA CN112590827A (en) | 2020-12-25 | 2020-12-25 | Low-vacuum pipeline taking-in and taking-off system, running vehicle and transportation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114030513A (en) * | 2021-11-17 | 2022-02-11 | 西南交通大学 | Multiphase super high-speed rail station operation method |
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2020
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114030513A (en) * | 2021-11-17 | 2022-02-11 | 西南交通大学 | Multiphase super high-speed rail station operation method |
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