Permanent and temporary combined underground rail intersection inlet and outlet line U-shaped groove end anti-flooding structure

Abstract

The utility model discloses a permanent and temporary combination type underground rail intersection inlet and outlet line U-shaped groove end portion anti-flooding structure which comprises an anti-flooding retaining wall transversely arranged at the end portion of a U-shaped groove structure, the anti-flooding retaining wall is of a reinforced concrete cast-in-place structure and is provided with a traveling groove, two stand columns face to face are arranged on the two sides of the traveling groove, inserting grooves are formed in the stand columns, and the inserting grooves are communicated with the U-shaped groove structure. A flood-proof baffle is inserted between the two stand columns. The reinforced concrete structure and the baffle are combined, the reinforced concrete structure and the U-shaped groove structure are constructed at the same time, when the flood danger occurs, the baffle is inserted into the driving groove, the end of the U-shaped groove can be quickly closed, permanent and temporary combined flood prevention measures are formed, flood invasion is resisted, operation is convenient, and time and labor are saved; at ordinary times, the ends of the U-shaped grooves are opened, and train passing is not affected. The anti-flooding device is simple and reliable in structure, high in safety and good in sealing performance, has a good anti-flooding effect, and can ensure the operation safety of the metro.

Description

Technical Field

[0001] This utility model belongs to the field of underground railway transportation technology, and specifically relates to a flood prevention structure at the end of a U-shaped trough for permanent and temporary underground rail transit access lines. Background Technology

[0002] Urban rail transit is an important mode of urban public transportation, playing an indispensable role in modern urban development due to its efficiency, speed, large capacity, and environmental friendliness. With the development of urban rail transit construction in China, its operational safety is receiving increasing attention.

[0003] In recent years, affected by global warming, extreme weather events have occurred frequently, and the intensity of local rainstorms has increased. These extreme weather conditions have had a great adverse impact on the operation of urban rail transit. Accidents such as rainwater backflow caused by extreme weather in some areas have posed a great threat to the normal operation of urban rail transit.

[0004] The parking lot access line is the passageway through which subway trains enter or exit the main line from the parking lot. It includes the underground section and the underground-to-above-ground transition section, which typically uses a U-shaped channel structure. Due to its structural characteristics, the U-shaped channel is of paramount importance in flood control. During heavy rain and continuous rainfall, insufficient municipal drainage capacity leads to water accumulation outside the station. Furthermore, because the height of the U-shaped channel's ends is limited, rainwater can easily backflow as the water level rises. Once a subway station is flooded, it not only severely disrupts the normal lives of citizens and faces heavy public pressure, causing serious negative social impacts, but in more serious cases, it can also endanger the lives of many people, resulting in significant casualties. Utility Model Content

[0005] This utility model provides a flood prevention structure for the end of a U-shaped trough in an underground rail transit access line that combines permanent and temporary features, in order to solve the technical problems existing in the prior art. This structure can enhance the flood prevention capability of the end of the U-shaped trough in the parking lot of urban rail transit, effectively prevent flooding, and reduce the risk of flood backflow in the U-shaped trough section.

[0006] The technical solution adopted by this utility model to solve the technical problems existing in the prior art is: a flood prevention structure at the end of a U-shaped channel for underground rail transit access lines that is both permanent and temporary, including a flood prevention retaining wall horizontally installed at the end of the U-shaped channel structure. The flood prevention retaining wall is made of reinforced concrete cast-in-place structure and is provided with a train trough. Two columns facing each other are provided on both sides of the train trough. Slots are provided on the columns, and a flood prevention baffle is inserted between the two columns.

[0007] The flood protection baffle is made of aluminum alloy plate.

[0008] The advantages and positive effects of this utility model are as follows: It adopts a combination of a steel-concrete structure and a baffle plate, with the steel-concrete structure and the U-shaped channel structure constructed simultaneously. In the event of a flood, the baffle plate can be inserted into the train track to quickly seal the end of the U-shaped channel, forming a permanent and temporary flood prevention measure to resist flood intrusion. The operation is convenient, time-saving, and labor-saving. Normally, the end of the U-shaped channel remains open, not affecting train passage. This utility model has a simple and reliable structure, strong safety, good sealing performance, and excellent flood prevention effect, ensuring the safe operation of the subway. Attached Figure Description

[0009] Figure 1 This is a plan view of the present invention;

[0010] Figure 2 This is a frontal view of the present invention.

[0011] In the diagram: 1. Floodproof retaining wall; 2. Floodproof baffle; 3. Column; 4. U-shaped trough structure; 5. Center line of parking lot access line. Detailed Implementation

[0012] To further understand the invention content, features, and effects of this utility model, the following embodiments are provided, and detailed descriptions are given below in conjunction with the accompanying drawings:

[0013] Please see Figure 1 and Figure 2 A flood prevention structure for the end of a U-shaped trough of a permanent and temporary underground rail transit access line includes a flood prevention retaining wall 1 horizontally installed at the end of the U-shaped trough structure 4. The flood prevention retaining wall 1 is a reinforced concrete cast-in-place structure and is equipped with a train trough. The centerline of the train trough coincides with the centerline 5 of the parking lot access line. Two facing columns 3 are provided on both sides of the train trough. Slots are provided on the columns 3, and flood prevention baffles 2 are inserted between the two columns 3.

[0014] In this embodiment, the flood-proof baffle 2 is made of aluminum alloy plate, which has high strength, good waterproof performance, wear resistance, corrosion resistance, and is lightweight and easy to install.

[0015] The flood prevention structure at the end of the U-shaped channel of the above-mentioned inlet and outlet line consists of two parts: a permanent reinforced concrete flood prevention wall and a temporary aluminum alloy flood prevention baffle. When a flood occurs, the temporary aluminum alloy flood prevention baffle is inserted into the slot of the column to form a permanent and temporary flood prevention measure to resist flood attack.

[0016] Construction steps and key technical points of the above-mentioned flood prevention structure at the end of the U-shaped channel of the inlet / outlet line:

[0017] Step 1: During the design phase, determine the width and shape of the permanent reinforced concrete flood barrier according to the subway vehicle clearance requirements to ensure the normal operation of subway trains; based on the subway flood prevention report or geological survey data, calculate and determine the height and thickness of the permanent reinforced concrete flood barrier to ensure flood control capacity.

[0018] Step 2: After the reinforced concrete U-shaped channel structure is completed, construct the permanent reinforced concrete flood control retaining wall and the columns with slots.

[0019] Step 3: Customize irregular-shaped aluminum alloy flood barriers, with a height level with the permanent reinforced concrete flood barrier wall; determine the thickness of the barriers through calculation based on the subway flood prevention report or geological survey data to ensure flood control capacity.

[0020] Step 4: In the event of a flood, insert the aluminum alloy flood barrier into the slot of the column to form a permanent and temporary flood protection system to resist flooding.

[0021] Although the preferred embodiments of the present invention have been described above in conjunction with the accompanying drawings, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims, and all of these are within the scope of protection of the present invention.

Claims

1. A permanent and temporary combined underground rail transit access line U-shaped slot end anti-flooding structure, characterized in that, The utility model discloses a flood prevention retaining wall which is arranged at the end of a U-shaped groove structure and is made of reinforced concrete and is provided with a driving groove, two vertical columns arranged on the two sides of the driving groove and facing each other, and a slot arranged on the vertical column, and a flood prevention baffle is arranged in the slot.

2. The permanent-movable combined underground rail transit access line U-shaped slot end anti-flooding structure according to claim 1, characterized in that, The flood prevention baffle is made of an aluminum alloy plate.

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