Subway entrance and exit line flood gate system

Abstract

The invention discloses a metro entrance and exit line flood gate system which comprises a water retaining wall, a first gate buttress, a second gate buttress, a third gate buttress, a rail crossing threshold and a flood gate. The two rows of retention walls are arranged on the outer side of the bidirectional rail in the extending direction of the rail, and the retention walls are 1.2 m higher than the ground in the field; the first door buttress, the third door buttress and the second door buttress are arranged on the inner walls of the two rows of water retaining walls respectively and arranged between the two-way rails. A single flood-proof door and a rail-crossing threshold are arranged between the first door buttress and the second door buttress, and a single flood-proof door and a rail-crossing threshold are arranged between the third door buttress and the second door buttress. According to the subway entrance and exit line flood gate system, a parking lot roadbed section and a U-shaped groove section are effectively separated, a closed flood control system is formed, and the flood control capacity at the height of at least 1.7 m is achieved; the flood-proof door faces the uphill section and is placed close to the side wall, passing of a train is not affected, and the flood-proof door can be closed along water flow towards the downhill section conveniently in a labor-saving mode during flood prevention.

Description

technical field [0001] The invention relates to the technical field of emergency flood control, in particular to an anti-flood door system for subway entry and exit lines. Background technique [0002] Under normal circumstances, when a city encounters extreme rainfall and severe water accumulation on the road surface, there are generally two situations that will cause the subway to be flooded. It enters the interior of the subway station from the entrance and exit of the station or the mouth of the air shaft; the other is that the ground water directly enters the tunnel of the subway section in the transition section when the subway section is from underground to the ground. [0003] The entrance and exit lines of the subway from the buried tunnel-U-shaped groove to the subgrade section of the parking lot are a process of gradual elevation of the longitudinal section. In the transition area of ​​the U-shaped trough section, there are generally water retaining walls with a ...

AI Technical Summary

Problems solved by technology

[0003] The entrance and exit lines of the subway from the buried tunnel-U-shaped groove to the subgrade section of the parking lot are a process of gradual elevation of the longitudinal section. In the transition area of ​​the U-shaped trough section, there are generally water retaining walls with a height of more than 0.5 meters on both sides of the U-shaped trough section, but the section facing the subgrade relies on the rail surface being higher than the field level to prevent flooding and waterlogging, and there is no water retaining plate or floodproof door

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