CN113202141A - Seabed vacuum pipeline test line capable of being extended to application line and implementation method thereof - Google Patents
Seabed vacuum pipeline test line capable of being extended to application line and implementation method thereof Download PDFInfo
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- CN113202141A CN113202141A CN202110508933.1A CN202110508933A CN113202141A CN 113202141 A CN113202141 A CN 113202141A CN 202110508933 A CN202110508933 A CN 202110508933A CN 113202141 A CN113202141 A CN 113202141A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/063—Tunnels submerged into, or built in, open water
- E02D29/067—Floating tunnels; Submerged bridge-like tunnels, i.e. tunnels supported by piers or the like above the water-bed
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/02—Restraining of open water
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0053—Production methods using suction or vacuum techniques
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0061—Production methods for working underwater
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Abstract
The invention discloses a submarine vacuum pipeline test line capable of extending as an application line and an implementation method thereof, wherein the submarine vacuum pipeline test line comprises a land section vacuum pipeline, a near-shore submarine embedded section vacuum pipeline, a submarine elevated section vacuum pipeline and a submarine pipe pier for supporting the submarine elevated section vacuum pipeline, which are sequentially communicated; the terminal of the seabed elevated section vacuum pipeline is provided with an inner removing seal head and an extending butt joint; the head end of the land section vacuum pipeline is provided with an air lock cabin; the invention also discloses an implementation method of the experimental line; the section of the submarine vacuum pipeline is far smaller than that of a traditional tunnel, and the construction cost is greatly lower than that of the traditional tunnel; after the test task is completed, the invention further extends the line direction of the cross-sea channel to be constructed, so that the test line is extended to be an application line, the construction cost is saved, the resource utilization rate is improved, and the engineering construction process of the cross-sea channel is accelerated.
Description
Technical Field
The invention belongs to the technical field of traffic research and development and engineering construction of a submarine vacuum pipeline, and particularly relates to a submarine vacuum pipeline test line capable of being extended as an application line and an implementation method thereof.
Background
The existing cross-sea channel engineering mainly comprises three forms of a cross-sea bridge, a submarine tunnel and an immersed tube tunnel, the technology is mature, and the engineering has a plurality of engineering applications, such as a Japanese green letter submarine tunnel, an English method submarine tunnel, a Chinese Hongkong Zhu-Auao bridge east and west section cross-sea bridge and a middle section immersed tube tunnel. The cross-sea bridge and the immersed tube tunnel are only suitable for shallow sea, wherein the immersed tube tunnel also requires smooth seabed terrain and is not suitable for sea areas with large seabed fluctuation. The submarine tunnel is formed by excavating below a certain covering layer under the seabed by a drilling and blasting method or a shield method and can be built in a deep sea area. The common application mode of the cross-sea bridge, the submarine tunnel and the immersed tube tunnel is that the cross-sea bridge, the submarine tunnel and the immersed tube tunnel are used for the passing of traditional railway trains and automobiles; the common characteristics are that the engineering quantity is large, the construction difficulty is high, and the construction cost is high, so that numerous cross-sea channel engineering with urgent requirements is forbidden, and the construction propulsion work is very slow, such as Bohai Bay Dalian-smoke station channel, Taiwan strait channel, Qiongzhou strait channel and the like in China, so that the extension of the cross-sea channel engineering to a wider sea area can only be a distant future dream.
The submarine vacuum pipeline transportation is basically characterized in that a pipeline is erected on a seabed, a certain vacuum is pumped in the pipeline, and a special sealed vehicle runs in the pipeline. Based on the technical principle of eliminating the aerodynamic resistance by utilizing the low-pressure environment and the traffic design concept innovation, the reduction of the aerodynamic resistance of the vehicle in the closed environment does not only depend on the reduction of the blockage ratio any more. Although the cost is increased by building a vacuum environment, the vacuum environment can be maintained for a long time as long as the vacuum environment is sealed well enough after being formed once, the pneumatic energy consumption required to be overcome by running vehicles in the vacuum pipeline can be nearly infinitely small, and after the energy consumption is converted into equivalent comparable elements, the energy consumption of the vacuum pipeline traffic is reduced in an order of magnitude meaning compared with the existing railway and road traffic.
On the other hand, the vacuum pipeline traffic reduces the aerodynamic resistance by reducing the air density, and does not pursue a small blocking ratio at the cost of expanding the structural section, so that the section of the vacuum pipeline can be far smaller than the section of the traditional tunnel, and the construction cost of the vacuum pipeline traffic can be greatly lower than that of the traditional tunnel under the premise of equivalent passing capacity according to the empirical theory that the diameter of the section of the tunnel/pipeline and the construction cost of the project are in an exponential relationship. Accordingly, based on the same principle, the construction cost of the submarine vacuum pipeline traffic can be greatly lower than that of the traditional cross-sea bridge, submarine tunnel and immersed tube tunnel.
Therefore, the submarine vacuum pipeline traffic will be a promising new choice for the cross-sea passage.
At present, a submarine vacuum pipeline is in a research and development stage, no practical application exists, and an engineering test line is urgently constructed. The acceleration of passenger transport vehicles, such as airplanes, is generally required to be not more than 0.2g, and trained testers can bear 0.5g of acceleration, so that the acceleration can be calculated to be 20g within 40 seconds, about 200m/s, equivalent to 720km/h and 4km of driving mileage. As a test line, another half of a mile is needed for deceleration. Therefore, the reasonable length of the manned vacuum pipeline engineering test line is 5-10 km at 600-1000 km/h.
The submarine vacuum pipeline engineering test line with the length of more than 5km has long line mileage, large engineering quantity and high cost, and if the submarine vacuum pipeline engineering test line is only used as a test line for construction and application, idle or abandoned ending can be met after the test task is completed, so that resource waste is caused. If the test line is designed and built as a component of a future application line, and after the test task is completed, the test line is converted into the application line by extension, the engineering cost can be saved, and the engineering progress is accelerated.
The shortest distance between the great link-smoke platform channel in Bohai Bay of China is about 110km, the shortest distance between the channel of Taiwan strait is about 128km, and the shortest distance between the channel of Johnson strait is about 20km, which both exceed the reasonable length of the test line. However, if the submarine vacuum pipeline engineering test line can be constructed in the line running direction of the channel, and after the test task is completed, the submarine vacuum pipeline engineering test line is extended to be an application line, the resource utilization efficiency can be improved to the maximum extent, and the early construction of the channel can be promoted.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a submarine vacuum pipeline test line capable of being extended as an application line and an implementation method thereof, so that the practical application of the novel cross-sea channel engineering is accelerated, and the resource waste is avoided.
In order to achieve the purpose, the invention adopts the technical scheme that:
a submarine vacuum pipeline test line capable of being extended as an application line comprises a land section vacuum pipeline, a near-shore submarine embedded section vacuum pipeline, a submarine elevated section vacuum pipeline and a submarine pipe pier for supporting the submarine elevated section vacuum pipeline, wherein the land section vacuum pipeline, the near-shore submarine embedded section vacuum pipeline and the submarine elevated section vacuum pipeline are sequentially communicated;
the terminal of the seabed elevated section vacuum pipeline is provided with an inner removing seal head and an extending butt joint;
and an air lock cabin is arranged at the head end of the land section vacuum pipeline.
The invention also has the following technical characteristics:
preferably, the head end of the air lock cabin is provided with an end door, the bottom of the air lock cabin is provided with a track, and the extension end of the air lock cabin is provided with a first isolation door.
Preferably, the track is a high-temperature superconducting magnetic suspension track, a low-temperature superconducting magnetic suspension track, a normally conductive magnetic suspension track or a traditional wheel-rail railway track;
furthermore, the track in the air lock cabin extends to the outer side of the air lock cabin towards the head end of the air lock cabin without interruption, and extends to the inside of the land section vacuum pipeline towards the extending end without interruption.
Preferably, said first isolation door is in airtight engagement with the track when closed.
Preferably, a second isolation door is arranged at the joint of the near-shore seabed embedded section vacuum pipeline and the seabed elevated section vacuum pipeline;
furthermore, a first drainage valve is arranged at the lower part of the second isolation door.
Preferably, the second isolation door is an openable and closable isolation door or a removable isolation door.
And a second drain valve is arranged at the lower part of the inner removing end socket.
The submarine pipe pier comprises a bottom pile foundation, and a bearing platform fixedly installed with the submarine elevated section vacuum pipeline is arranged at the top end of the pile foundation.
The invention also provides an implementation method of the submarine vacuum pipeline test line capable of being extended to be an application line, which comprises the following steps:
the method comprises the following steps: carrying out test line site selection, wherein line positions are selected in sea areas with cross-sea channel construction requirements;
step two: constructing a land section vacuum pipeline and a near-shore seabed embedded section vacuum pipeline, and synchronously constructing a seabed pipe pier;
step three: extending a vacuum pipeline of a near-shore seabed embedded section into seabed water, erecting a seabed elevated section vacuum pipeline on a seabed pipe pier by adopting a water injection method until the pipeline extends to a set length of a test line, and installing an internal removal seal head and an extension butt joint;
step four: after the whole construction of the vacuum pipeline is finished, draining water in the vacuum pipeline of the seabed elevated section through a first drain valve and a second drain valve;
step five: after the drainage is finished, the drainage device is dismantled, the second isolation door is opened or dismantled, and the interior of the vacuum pipeline of the seabed elevated section is cleaned;
step six: installing a track, vehicle operation monitoring equipment and vacuum equipment;
step seven: closing the first isolation door, and vacuumizing the whole section of the submarine vacuum pipeline test section;
step eight: carrying out an unmanned vehicle running test, and then carrying out a manned vehicle running test;
step nine: after a plurality of tests in a certain period, after each index reaches the design standard, extending the test line pipeline until reaching the planned station position on the land or island at the other end;
step ten: draining and cleaning the extension section pipeline, and additionally installing an air lock cabin and a vacuum pump;
step eleven: removing the inner removing end socket, and installing a track and vehicle operation monitoring equipment on the extension line;
step twelve: carrying out a full-line vehicle running test;
step thirteen: formally opening operation, and operating vacuum pipeline passenger vehicles and freight vehicles;
fourteen steps: and a second parallel submarine vacuum pipeline is additionally built according to the requirement, so that the bidirectional running of the vehicle is realized, and the transport capacity is improved.
Preferably, in the fourth step, the first drainage valve is connected with a first drainage pipeline and a first drainage pump, seawater in the pipeline at the raised section of the seabed is drained from the opening of the end door of the air lock cabin, or an operation water tank truck which runs along a track in the pipeline is adopted, the seawater is firstly injected into the operation water tank truck, and then the operation water tank truck transports the seawater out through the air lock cabin;
the second drainage valve is connected with a second drainage pipeline, the water outlet of the second drainage pipeline is fixed on an operation ship anchored on the sea surface at the corresponding position and is connected with a second drainage pump, and seawater in the pipeline at the raised section of the seabed is drained.
Compared with the prior art, the invention has the following technical effects:
the seabed vacuum pipeline reduces the aerodynamic resistance of a vehicle in a closed environment, does not depend on the reduction of the blockage ratio any more, further improves the running speed, has a section far smaller than that of a traditional tunnel, and has a construction cost greatly lower than that of the traditional tunnel;
after the test task is completed, the submarine vacuum pipeline test line further extends in the line direction of the cross-sea channel to be built, so that the test line extends to be an application line, the test line cannot be left unused and abandoned after the test task is completed, the construction cost is saved, the novel cross-sea channel engineering is accelerated to be put into practical application, the resource utilization rate is improved, and the cross-sea channel engineering construction process is accelerated.
Drawings
FIG. 1 is a schematic view of the overall structure of a subsea vacuum line test line of the present invention extendable as an application line;
FIG. 2 is a schematic representation of the construction of a subsea vacuum pipeline test line of the present invention extendable as an application line, illustrating that a continental segment, a near shore subsea embedment segment, and a subsea pipe pier have been completed;
FIG. 3 is a schematic view of the construction process of the subsea vacuum pipeline test line extendable as an application line of the present invention, in which the land section, the near-shore subsea embedded section, the subsea pipe pier have been constructed, and the subsea elevated section is in the process of installation construction;
FIG. 4 is a cross-sectional view of the pipe of the present invention showing the pipe pier, the inner removal head and its second drain valve;
FIG. 5 is a schematic illustration of the drainage process in an elevated section of a subsea vacuum line test line pipe of the present invention extendable as an application line;
FIG. 6 is a schematic illustration of a subsea vacuum line test line of the present invention extendable as an application line;
the meaning of each reference number in the figures is: 1-a land section vacuum pipeline, 2-a near-shore submarine embedded section vacuum pipeline, 3-a submarine elevated section vacuum pipeline, 4-a submarine pipe pier, 5-an internal removal seal head, 6-an extension butt joint, 7-an air lock cabin, 8-an end door, 9-a track, 10-a first isolation door, 11-a second isolation door, 12-a first drain valve, 13-a second drain valve, 14-a second drain pipeline, 15-a water outlet, 16-a second drain pump, 17-a flange, 18-a vehicle, 19-a working ship, 20-a first drain pipeline, 21-a first drain pump; 401-pile foundation, 402-pile cap.
Detailed Description
The present invention will be explained in further detail with reference to examples.
As shown in fig. 1 to 6, the present embodiment provides a submarine vacuum pipeline test line which can be extended as an application line, comprising a land section vacuum pipeline 1, a near-shore submarine embedment section vacuum pipeline 2 and a submarine elevated section vacuum pipeline 3 which are sequentially connected, and a submarine pipe pier 4 for supporting the submarine elevated section vacuum pipeline 3;
the near-shore seabed embedded section vacuum pipeline 2 is a pipeline between a coastline and a water inlet point of a vacuum pipeline embedded underground and entering the sea from the seabed, and belongs to the sea area range;
the terminal of the seabed elevated section vacuum pipeline 3 is provided with an inner removing seal head 5 and an extension butt joint 6, the seabed elevated section vacuum pipeline 3 refers to a vacuum pipeline which is positioned on the seabed and erected on a seabed pipe pier 4, and the extension butt joint 6 can be a flange or other structures which are convenient to connect and have the telescopic adjusting function.
The head end of the land section vacuum pipeline 1 is provided with an air lock cabin 7, the land section vacuum pipeline 1 is located underground, and the air lock cabin 7 is used for test vehicles to enter the vacuum pipeline.
The head end of the air lock cabin 7 is provided with an end door 8, the bottom of the air lock cabin is provided with a track 9, the extension end of the air lock cabin is provided with a first isolation door 10, the end door 8 isolates the air lock cabin 7 from the external atmospheric environment, and when the air lock cabin is closed, the air lock cabin and the track 9 are meshed in an air-tight mode.
The track 9 is a high-temperature superconducting magnetic suspension track, a low-temperature superconducting magnetic suspension track, a normally conductive magnetic suspension track or a traditional wheel-rail railway track;
the track 9 in the air lock cabin 7 extends to the outside of the air lock cabin 7 towards the head end of the air lock cabin 7 without interruption, and extends to the inside of the land section vacuum pipeline 1 towards the extending end without interruption, so that vehicles can pass through stably.
The first isolation door 10 is hermetically engaged with the rail 9 when closed, and isolates the damper chamber 7 from the vacuum environment in the vacuum pipe.
A second isolation door 11 is arranged at the joint of the near-shore seabed embedded section vacuum pipeline 2 and the seabed elevated section vacuum pipeline 3, so that seawater in the seabed elevated section vacuum pipeline 3 is prevented from entering the near-shore seabed embedded section vacuum pipeline 2 and the land section vacuum pipeline 1 in the construction process.
The lower part of the second isolation door 11 is provided with a first drainage valve 12, and residual seawater in the vacuum pipeline 3 of the seabed elevated section of the test line is drained after the construction of the vacuum pipeline 3 of the seabed elevated section is finished.
The second isolation gate 11 is an openable and closable isolation gate or a removable isolation gate.
The lower part of the inner removing end socket 5 is provided with a second drain valve 13, and residual seawater in the vacuum pipeline 3 of the seabed elevated section of the test line is discharged after the construction of the vacuum pipeline 3 of the seabed elevated section is finished.
The submarine pipe pier 4 comprises a bottom pile foundation 401, a bearing platform 402 fixedly installed with the submarine elevated section vacuum pipeline 3 is arranged at the top end of the pile foundation 401, and the submarine elevated section vacuum pipeline 3 is supported and positioned.
The embodiment provides an implementation method of a submarine vacuum pipeline test line capable of being extended to be an application line, which comprises the following steps:
the method comprises the following steps: carrying out test line site selection, wherein line positions are selected in sea areas with cross-sea channel construction requirements;
step two: constructing a land section vacuum pipeline 1 and a near-shore seabed embedded section vacuum pipeline 2, and synchronously constructing a seabed pipe pier 4;
the land section vacuum pipeline 1 and the near-shore seabed embedded section vacuum pipeline 2 are constructed by adopting an excavation method or a pipe jacking method, no water enters the pipelines in the construction process, and constructors can enter the pipelines;
the land-segment vacuum pipeline 1 comprises an air lock cabin 7, a second isolation door 11 is arranged in the last section of pipeline of the near-shore seabed embedded segment vacuum pipeline 2, and can be an openable and closable isolation door similar to the first isolation door 10 or a temporary isolation door which is similar to the inner removing seal head 5 and can be detached and removed from the interior of the pipeline;
step three: extending a near-shore seabed embedded section vacuum pipeline 2 into seabed water, erecting a seabed elevated section vacuum pipeline 3 on a seabed pipe pier 4 by adopting a water injection method until the pipeline extends to a set length of a test line, and installing an internal removal seal head 5 and an extension butt joint head 6;
as shown in fig. 3, the water injection construction is that pipe sections with openings at two ends are sunk to the installation position from a working ship, butt joint and fastening are carried out through flanges 17, and seawater enters the pipeline in the erection and installation process;
step four: after the whole construction of the vacuum pipeline is finished, the first water drain valve 12 and the second water drain valve 13 are used for draining water in the vacuum pipeline 3 of the seabed elevated section, as shown in fig. 4 and 5;
the first drainage valve 12 is connected with a first drainage pipeline 20 and a first drainage pump 21, seawater in the submarine elevated section pipeline 3 is discharged from an opening of an end door 8 of the air lock cabin 7, or seawater is firstly injected into an operation water tank truck by adopting an operation water tank truck which runs along an inner track of the pipeline, and then the seawater is transported out by the operation water tank truck through the air lock cabin 7;
the second drainage valve 13 is connected with a second drainage pipeline 14, a water outlet 15 of the second drainage pipeline 14 is fixed on a working ship 19 anchored at the corresponding position on the sea surface, and is connected with a second drainage pump 16 to drain the seawater in the submarine elevated pipeline 3;
step five: after the drainage is finished, closing the second drain valve 13 to remove the drainage device, opening or removing the second isolating door 11, and cleaning the inside of the vacuum pipeline 3 of the seabed elevated section;
step six: installing a track, vehicle operation monitoring equipment and vacuum equipment;
step seven: closing the first isolation door 10, and vacuumizing the whole section of the submarine vacuum pipeline test section;
step eight: carrying out an operation test of the unmanned vehicle 18, and then carrying out an operation test of the manned vehicle;
step nine: after a plurality of tests in a certain period, after each index reaches the design standard, extending the test line pipeline until reaching the planned station position on the land or island at the other end;
step ten: draining and cleaning the extension section pipeline, and additionally installing an air lock cabin and a vacuum pump;
step eleven: removing the inner removing end socket 5, and installing a track and vehicle operation monitoring equipment on the extension line;
step twelve: carrying out a full-line vehicle running test;
step thirteen: formally opening operation, and operating vacuum pipeline passenger vehicles and freight vehicles;
fourteen steps: and a second parallel submarine vacuum pipeline is additionally built according to the requirement, so that the bidirectional running of the vehicle is realized, and the transport capacity is improved.
Claims (10)
1. A submarine vacuum pipeline test line capable of being extended to be an application line is characterized by comprising a land section vacuum pipeline (1), a near-shore submarine embedment section vacuum pipeline (2), a submarine elevated section vacuum pipeline (3) and a submarine pipe pier (4) for supporting the submarine elevated section vacuum pipeline (3), wherein the land section vacuum pipeline, the near-shore submarine embedment section vacuum pipeline and the submarine elevated section vacuum pipeline are sequentially communicated;
the terminal of the seabed elevated section vacuum pipeline (3) is provided with an internal removal seal head (5) and an extension butt joint head (6);
the head end of the land segment vacuum pipeline (1) is provided with an air lock cabin (7).
2. A subsea vacuum line test line extendable as an application line according to claim 1, characterized in that said airlock tank (7) is provided with an end door (8) at the head end, a track (9) at the bottom and a first isolation door (10) at the extension end.
3. The subsea vacuum pipeline test line extendable as an application line according to claim 2, characterized in that the track (9) is a high temperature superconducting magnetic levitation track, a low temperature superconducting magnetic levitation track, a normally conductive magnetic levitation track or a conventional wheeltrack railway track;
the track (9) in the air lock cabin (7) extends to the outer side of the air lock cabin (7) towards the head end of the air lock cabin (7) without interruption, and extends to the inner part of the land section vacuum pipeline (1) towards the extension end without interruption.
4. A subsea vacuum line test line extendable as an application line according to claim 2, characterized in that said first isolation door (10) is sealingly engaged with the track (9) when closed.
5. The subsea vacuum line test line extendable as an application line according to claim 1, characterized in that a second isolation door (11) is provided at the junction of the offshore subsea embedment section vacuum pipe (2) and the subsea elevated section vacuum pipe (3);
and a first drainage valve (12) is arranged at the lower part of the second isolating door (11).
6. A subsea vacuum line test line extendable as an application line according to claim 5, characterized in that said second isolation door (11) is an openable and closable isolation door or a removable isolation door.
7. A subsea vacuum line test line extendable as an application line according to claim 1, characterized in that a second drain valve (13) is provided below the inner removal head (5).
8. A subsea vacuum pipeline test line extendable as an application line according to claim 1, characterized in that the subsea pipe pier (4) comprises a bottom pile foundation (401), and that the top end of the pile foundation (401) is provided with a cap (402) fixedly mounted to the subsea elevated section vacuum pipeline (3).
9. A method of carrying out a subsea vacuum line test line extendable as an application line according to claims 1-8, comprising the steps of:
the method comprises the following steps: carrying out test line site selection, wherein line positions are selected in sea areas with cross-sea channel construction requirements;
step two: constructing a land section vacuum pipeline (1), a near-shore submarine embedding section vacuum pipeline (2) and synchronously constructing submarine pipe piers (4);
step three: extending a vacuum pipeline (2) of a near-shore seabed embedded section into seabed water, erecting a seabed elevated section vacuum pipeline (3) on a seabed pipe pier (4) by adopting a water injection method until the pipeline extends to a set length of a test line, and installing an inner removing seal head (5) and an extending butt joint (6);
step four: after the whole construction of the vacuum pipeline is finished, draining water in the seabed elevated section vacuum pipeline (3) through a first drain valve (12) and a second drain valve (13);
step five: after the drainage is finished, the drainage device is dismantled, the second isolation door (11) is opened or dismantled, and the interior of the seabed elevated section vacuum pipeline (3) is cleaned;
step six: installing a track, vehicle operation monitoring equipment and vacuum equipment;
step seven: closing the first isolation door (10), and vacuumizing the whole section of the submarine vacuum pipeline test section;
step eight: carrying out an unmanned vehicle running test, and then carrying out a manned vehicle running test;
step nine: after a plurality of tests in a certain period, after each index reaches the design standard, extending the test line pipeline until reaching the planned station position on the land or island at the other end;
step ten: draining and cleaning the extension section pipeline, and additionally installing an air lock cabin and a vacuum pump;
step eleven: removing the inner removing end socket (5), and installing a track and vehicle operation monitoring equipment on the extension line;
step twelve: carrying out a full-line vehicle running test;
step thirteen: formally opening operation, and operating vacuum pipeline passenger vehicles and freight vehicles;
fourteen steps: and a second parallel submarine vacuum pipeline is additionally built according to the requirement, so that the bidirectional running of the vehicle is realized, and the transport capacity is improved.
10. The method for implementing the subsea vacuum pipeline test line extendable as an application line according to claim 9, wherein in the fourth step, the first drainage valve (12) is connected to the first drainage valve (12) and the first drainage pump (21) to drain the seawater in the subsea overhead pipeline (3) from the opening of the end door (8) of the air lock compartment (7), or a service water tanker is used to run along the track in the pipeline, the seawater is first injected into the service water tanker, and then the service water tanker transports the seawater through the air lock compartment (7);
the second drainage valve (13) is connected with a second drainage pipeline (14), a water outlet (15) of the second drainage pipeline (14) is fixed on a working ship anchored at the corresponding position on the sea surface and is connected with a second drainage pump (16) to drain the seawater in the submarine elevated pipeline (3).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114657985A (en) * | 2022-04-07 | 2022-06-24 | 西京学院 | Seabed pile construction device and method based on seabed vacuum pipeline |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114657985A (en) * | 2022-04-07 | 2022-06-24 | 西京学院 | Seabed pile construction device and method based on seabed vacuum pipeline |
| CN114657985B (en) * | 2022-04-07 | 2023-08-29 | 西京学院 | Submarine pile construction device and method based on submarine vacuum pipeline |
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