A subway section flood escape passage

Abstract

This invention discloses a flood escape passage in a subway section, relating to the field of escape passage technology. It includes a platform located within a subway tunnel and two evacuation platforms situated on the sidewall of the subway tunnel within the subway line section. Each platform includes a platform room and a platform corridor, with one evacuation platform connected to the platform corridor. A connecting passage is provided at one end of the platform corridor. Each evacuation platform is equipped with a movable sunken walkway. By connecting the evacuation platforms to the platform corridor, this invention allows passengers to directly access the platform for evacuation. Furthermore, the connecting passage connects the two evacuation platforms, enabling passengers on both platforms to converge on the platform for evacuation. The movable sunken walkway covers the passageway leading to the track bed, facilitating passenger transfer via the evacuation platforms and improving the safety and efficiency of passenger evacuation during floods.

Description

Technical Field

[0001] This invention relates to the field of escape route technology, specifically to an escape route for flooding in subway sections. Background Technology

[0002] Subways are a common mode of transportation and a type of urban rail transit system. Lines located in the city center are mostly located in underground tunnels. For safety reasons, passenger evacuation methods are an extremely important part of the design in the event of a safety problem in a subway tunnel. They are a safety guarantee to ensure the safe escape of passengers. Floods are one of the disasters that affect passenger safety.

[0003] Currently, there is no specific design for passenger evacuation in flood conditions. Generally, when floods occur in subway sections, passengers are evacuated along the track bed or evacuation platform, similar to fire evacuation methods. However, the track bed is quickly submerged by floodwaters, and the murky water makes it difficult for passengers to identify the path, making them prone to tripping. The evacuation platform has sunken walkways leading to the track bed, which lowers the height of part of the evacuation platform by using stairs, making it easy for it to be submerged by floodwaters in the event of a flood, thus hindering passenger evacuation. Therefore, an evacuation method specifically designed for flood conditions is needed. Summary of the Invention

[0004] The purpose of this invention is to provide a flood escape passage in a subway section, which solves the problem that existing subway passages do not have passenger evacuation methods for flood conditions.

[0005] To solve the above-mentioned technical problems, the present invention specifically provides the following technical solution:

[0006] A flood escape passage in a subway section includes a platform located inside the subway tunnel and two evacuation platforms located on the side wall of the subway tunnel within the subway line section. Each platform includes a platform room and a platform corridor, and one of the evacuation platforms is connected to the platform corridor. One end of the platform corridor is provided with a connecting passage located at the end of the platform room and connecting to the other evacuation platform. Each evacuation platform is provided with a movable sunken passage, which is used to provide a passage for passengers to pass through to the track bed during fire evacuation and to cover the passage leading to the track bed in the event of a flood.

[0007] As a preferred embodiment of the present invention, the movable sunken passage includes an interruption gap set on the evacuation platform, and the interruption gap divides the evacuation platform into two sections. A sunken walkway extending downward is provided at the interruption gap. A cover plate is provided on the side wall of the subway tunnel by means of hinges, and the length of the cover plate is greater than the length of the interruption gap. In the event of a flood, the cover plate flips over to overlap the two sections of the evacuation platform.

[0008] As a preferred embodiment of the present invention, a support frame is provided at the bottom of the cover plate, and a plurality of support columns are rotatably connected to the support frame, and the support columns rotate due to gravity when the cover plate is flipped.

[0009] In a preferred embodiment of the present invention, the evacuation platform and the platform corridor are connected by a gentle slope.

[0010] As a preferred embodiment of the present invention, the gentle slope is an unobstructed gentle slope with a slope of 1:8.

[0011] As a preferred embodiment of the present invention, a fire-fighting door is provided at the connection between the evacuation platform and the platform corridor.

[0012] As a preferred embodiment of the present invention, a fire door is provided in the connecting channel.

[0013] As a preferred embodiment of the present invention, a platform slab is provided on one side of the platform, and the platform slab is connected to two evacuation platforms. A stairwell is provided at the platform slab, and the stairwell is connected to a connecting passage and to the ground.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] This invention connects the evacuation platform to the platform corridor, allowing passengers to directly access the platform for evacuation. Furthermore, a connecting passage connects the evacuation platforms on both sides, enabling passengers on both platforms to converge on the platform for evacuation. An movable sunken passage covers the access to the track bed, facilitating passenger transfer via the evacuation platform and improving the safety and efficiency of passenger evacuation during floods. Attached Figure Description

[0016] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0017] Figure 1 This invention provides a schematic diagram of the structural layout of a flood escape passage in a subway section.

[0018] Figure 2 A schematic diagram of a station structure layout with wiring is provided for an embodiment of the present invention;

[0019] Figure 3 A schematic diagram of the structure of an movable sunken channel is provided for an embodiment of the present invention.

[0020] The labels in the diagram represent the following:

[0021] 1. Evacuation platform; 2. Platform room; 3. Platform corridor; 4. Connecting passageway; 5. Movable sunken passageway; 6. Stairwell;

[0022] 501. Sunken walkway; 502. Cover plate; 503. Support frame; 504. Support column; 505. Hinge. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] like Figures 1 to 3 As shown, the present invention provides a flood escape passage in a subway section, including a platform set in the subway tunnel and two evacuation platforms 1 set on the side wall of the subway tunnel and located in the subway line section. The platform includes a platform room 2 and a platform corridor 3, and one of the evacuation platforms 1 is connected to the platform corridor 3. A connecting passage 4 is provided at one end of the platform corridor 3, and the connecting passage 4 is located at the end of the platform room 2 and connects to the other evacuation platform 1. Each evacuation platform 1 is provided with a movable sunken passage 5, which is used to provide a passage for passengers to pass through to the track bed during fire evacuation and to cover the passage leading to the track bed in the event of flood.

[0025] This application addresses the issue of how to safely evacuate passengers in the event of a flood in a subway tunnel. In the solution proposed in this application, by connecting the evacuation platform 1 with the platform corridor 3, passengers in the subway line section can directly reach the platform for gathering and safe evacuation after getting off the train via the evacuation platform 1. Compared with the existing method of entering the track bed via the lower rail stairs at the adjacent platform and then entering the platform via the stairs, this application improves the safety and efficiency of the evacuation process.

[0026] To save space, platform corridors 3 are usually set on only one side of the platform. Therefore, by setting up connecting passages 4, passengers on evacuation platform 1 on one side of the subway line section can directly reach platform corridor 3, while passengers on evacuation platform 1 on the other side can reach platform corridor 3 through connecting passages 4. This ensures that all passengers evacuated through evacuation platform 1 can reach platform corridor 3 for evacuation, thus improving evacuation efficiency.

[0027] Furthermore, if platform corridors 3 are provided on both sides of the platform, the two platform corridors 3 are connected to the two evacuation platforms 1 respectively, so that passengers evacuating from the two evacuation platforms 1 can quickly reach the platform corridors 3 for safe evacuation.

[0028] To ensure the safety of fire evacuation, a movable sunken passage 5 is installed on the evacuation platform 1, allowing passengers to evacuate through the passage to the track bed. However, in the event of a flood, the track bed may become flooded and difficult to see, making it easy for passengers to trip and fall while evacuating from the track bed. In this case, the movable sunken passage 5 is covered to close the passage, allowing passengers to directly enter the platform corridor 3 through the evacuation platform 1 for safe evacuation, thus improving evacuation efficiency and ensuring the safe evacuation of passengers.

[0029] In this embodiment, the two evacuation platforms 1 refer only to the number within a single subway line section. This part is used as an example only, while all subway areas are designed and constructed according to this example.

[0030] The movable sunken passage 5 includes an interruption gap set on the evacuation platform 1, which divides the evacuation platform 1 into two sections. A sunken walkway 501 extending downward is set at the interruption gap. A cover plate 502 is rotatably set on the side wall of the subway tunnel via a hinge 505. The length of the cover plate 502 is greater than the length of the interruption gap, and it flips over to overlap the two sections of the evacuation platform 1 in the event of a flood.

[0031] A sunken walkway 501 is provided at the interruption gap so that passengers on the evacuation platform 1 can reach the track bed for evacuation in the event of a fire. In this embodiment, the sunken walkway 501 is a staircase, and there are two of them, so that passengers on the evacuation platform 1 on both sides of the interruption gap can reach the track bed for evacuation through the sunken walkway.

[0032] In the event of a flood, passengers or staff can flip over the cover plate 502 so that both ends of the cover plate 502 are respectively attached to the evacuation platforms 1 at both ends. At this time, the evacuation platforms 1 provide support for the cover plate 502, and passengers on the evacuation platforms 1 can directly reach the platform corridor 3 through the cover plate 502, so that passengers do not have to walk across the track bed to reach the evacuation platform 1, thus avoiding the problem of passengers being tripped and injured by water accumulation on the track bed.

[0033] When not in use, the cover plate 502 can be flipped up and leaned against the wall of the subway tunnel. It can also be further secured by corresponding latches, such as by setting hooks on the side wall of the subway tunnel to hook the cover plate 502.

[0034] Furthermore, the cover plate 502 can also be rotatably connected to the inner wall of the subway tunnel in other ways, such as by hinges.

[0035] A support frame 503 is provided at the bottom of the cover plate 502. Multiple support columns 504 are rotatably connected to the support frame 503, and the support columns 504 rotate due to gravity when the cover plate 502 is flipped.

[0036] When the cover plate 502 flips over to overlap with the evacuation platform 1, the support column 504 flips over to contact the ground under the action of gravity. The cover plate 502 is supported by multiple support columns 504, which improves the safety of the cover plate 502 when passengers pass through. When the cover plate 502 is retracted, the support column 504 automatically rotates to contact the support frame 503 under the action of gravity, and then automatically retracts, avoiding interference with the area of ​​the sunken walkway 501, so that passengers can pass through the sunken walkway 501 normally.

[0037] Evacuation platform 1 is connected to platform corridor 3 by a gentle slope.

[0038] The gentle slope is an unobstructed gentle slope with a gradient of 1:8.

[0039] There is a height difference between evacuation platform 1 and platform corridor 3, so a gentle slope is provided to ensure the safe passage of passengers.

[0040] In this embodiment, the slope of the gentle slope is 1:8, but it can also be other slopes, which can be adjusted according to the actual engineering design.

[0041] A manned air defense door is installed at the connection between evacuation platform 1 and platform corridor 3.

[0042] When a section air-raid shelter is installed at one end of the platform, the evacuation route of the subway line section is blocked by the section air-raid shelter during flood conditions. At the same time, the evacuation passage through the track bed is also blocked. Therefore, an air-raid shelter is installed at the connection between evacuation platform 1 and platform corridor 3 to connect evacuation platform 1 and platform corridor 3, so as to ensure that passengers have a safe evacuation route.

[0043] Furthermore, the relevant wiring should be laid above the air-raid shelter doors to avoid evacuation routes.

[0044] Fire doors are installed in connecting passage 4 to block wind pressure and smoke.

[0045] A platform slab is provided on one side of the platform, and the platform slab is connected to two evacuation platforms 1. A stairwell 6 is provided at the platform slab, and the stairwell 6 is connected to the connecting passage 4 and the ground.

[0046] Some platforms are equipped with various wiring such as single crossover tracks, turnaround tracks, and parking tracks due to train operation needs. These wirings block the evacuation path of platform corridor 3 and increase the evacuation distance. Taking the single crossover track as an example, the platform is divided into two parts. If there is a platform room 2 at the end of the platform, the area will become an island. Therefore, a stairwell 6 is set up at one end of the platform to connect with the passageway 4, so that staff and passengers can evacuate to the ground. The evacuation platform 1 is connected to the platform slab, so that the evacuation platform 1 is connected to the platform corridor 3.

[0047] Furthermore, to facilitate staff access, the location of stairwell 6 in the station hall is generally a piston passage, arranged in the direction of the subway tunnel's ventilation duct to reduce the obstruction of the ventilation duct.

[0048] Furthermore, if a side-platform station is blocked from the main line by the subway section evacuation platform 1, this method can also be used to increase the safety of passenger evacuation in flood conditions.

[0049] In actual engineering, it is recommended that, under the premise of meeting the clearance requirements, the evacuation platforms 1 on both sides of the station track should be extended as far as possible and brought as close to the track as possible, and the blocking distance should be controlled within the length of the train. In the event of flooding, the nearest empty train can be dispatched and parked here, with the side doors at both ends of the train connecting to the evacuation platform 1 respectively. The long passenger compartment inside the train can be used as a temporary evacuation connection channel to cross the track area for emergency evacuation of passengers in the section.

[0050] In this embodiment, the general construction method is as follows:

[0051] The civil engineering works such as platforms and tunnels are the foundation for the implementation of escape routes and are carried out in priority. Stations generally adopt the open-cut method, and the main structure, platform slabs and secondary structures such as evacuation stairwells are constructed in sequence. Finally, air-raid shelter doors are installed. Tunnels are generally constructed using the shield tunneling method.

[0052] After the civil engineering of the platform and the tunnel section is completed, the decoration of the corresponding escape passages will be carried out simultaneously on the platform and the tunnel section. On the platform, non-slip floor tiles will be laid on the escape passages and stairwells to maintain the flatness of the entire escape route. During the implementation process, special attention should be paid to ensure that there are no obstacles protruding from the ground that may affect escape safety.

[0053] The evacuation platform 1 and the sunken walkway 501 in the section adopt a steel structure system. First, the load-bearing steel beam structure support part of the evacuation platform 1 and the sunken walkway 501 is constructed. The transverse steel beams are fixed to the tunnel structure segments with a beam spacing of 1.2 meters, which is consistent with the width of the segments.

[0054] After the load-bearing structure of the steel beams is completed, evacuation flat treads are laid on top. The treads are connected to the steel supports by hooks. There must be no less than two hooks on each steel beam. The treads are made of non-grid flat panels to prevent walking obstacles caused by special heels.

[0055] Finally, the handrails and the foldable cover plate 502 at the sunken walkway 501 are implemented. The cover plate 502 can be prefabricated and assembled on site. The cover plate 502, support frame 503, and support column 504 can be prefabricated and fixed together. The number of support columns 504 is determined according to the load-bearing structural steel beams at the bottom of the site, and their positions correspond to the steel beams. Each support column 504 consists of two supporting rigid columns, matching the height of the sunken walkway 501 and the overall stress balance. After the cover plate 502 is folded down, the support column 504 bears the weight. The force is released onto the steel beam, providing reverse support. The cover plate 502 is fixed to the shield tunnel segment by hinges 505. It has the function of flipping up and down and can prevent wind pressure from falling and affecting driving safety. The number of hinges 505 is determined according to the actual situation. Generally, one set is set on each side of the evacuation platform 1 and the support column 504. Finally, the cover plate 502 panel after flipping up is temporarily fixed to the side segment by conventional measures such as chains. It does not affect the normal maintenance and passage function. In case of flood, the chain is manually released to lower the cover plate 502.

[0056] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. A flood escape passage in a subway section, characterized in that, The system includes a platform located inside a subway tunnel and two evacuation platforms (1) located on the side wall of the subway tunnel and within the subway line section. Each platform includes a platform room (2) and a platform corridor (3). One of the evacuation platforms (1) is connected to the platform corridor (3). One end of the platform corridor (3) is provided with a connecting passage (4). The connecting passage (4) is located at the end of the platform room (2) and connects to the other evacuation platform (1). Each evacuation platform (1) is provided with a movable sunken passage (5). The movable sunken passage (5) is used to provide a passage for passengers to pass through to the track bed during fire evacuation and to cover the passage leading to the track bed in the event of flood. The movable sunken passage (5) includes an interruption gap set on the evacuation platform (1), and the interruption gap divides the evacuation platform (1) into two sections. A sunken walkway (501) extending downward is set at the interruption gap. A cover plate (502) is rotatably set on the side wall of the subway tunnel by a hinge (505), and the length of the cover plate (502) is greater than the length of the interruption gap. In the event of a flood, it flips over to overlap the two sections of the evacuation platform (1). The bottom of the cover plate (502) is provided with a support frame (503), and multiple support columns (504) are rotatably connected to the support frame (503). The support columns (504) rotate due to gravity when the cover plate (502) is flipped.

2. The flood escape passage in a subway section according to claim 1, characterized in that, The evacuation platform (1) is connected to the platform corridor (3) by a gentle slope.

3. A flood escape passage in a subway section according to claim 2, characterized in that, The slope is an accessible slope with a gradient of 1:

8.

4. A flood escape passage in a subway section according to claim 1, characterized in that, A manned air defense door is provided at the connection between the evacuation platform (1) and the platform corridor (3).

5. A flood escape passage in a subway section according to claim 1, characterized in that, A fire door is installed inside the connecting channel (4).

6. A flood escape passage in a subway section according to claim 1, characterized in that, A platform slab is provided on one side of the platform, and the platform slab is connected to two evacuation platforms (1). A stairwell (6) is provided at the platform slab, and the stairwell (6) is connected to the connecting passage (4) and to the ground.

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