Temporary anti-flooding protective airtight door for ventilation of ventilation area and construction method thereof

Abstract

The invention relates to the technical field of subway civil air defense and flooding prevention, and discloses a temporary anti-flooding protective airtight door for ventilation of a ventilation area and a construction method thereof. The ventilation area comprises an air duct leading to the external environment and a subway operation area, wherein the temporary anti-flooding protective airtight door comprises a door frame and a door leaf; and the face, facing the air duct, of the door frame is an impact face resisting shock waves or water pressure; the bottom end of the door leaf is hinged to the bottom side of the door frame, the door leaf is located on one side of the impact face of the door frame, an electric hoist is arranged on the face, back on to the impact face, of the door frame, a traction rope is arranged on the electric hoist, the traction rope is connected with the door leaf, and the electric hoist drives the door leaf to rotate through the traction rope and close the door frame. The temporary anti-flooding protective airtight door can be used for air defense in wartime and flood prevention at ordinary times, the door leaf can be quickly closed in emergency, and the safety of personnel and equipment in a station is guaranteed.

Description

technical field [0001] The invention relates to the technical field of subway civil air defense and anti-flooding, in particular to a temporary anti-flooding protection airtight door for ventilation in a ventilation area and a construction method thereof. Background technique [0002] The anti-flooding protective airtight doors in the subway section are generally set at the end of the station or at the rectangular cut-and-cut section, and the door leaves are generally rectangular door leaves, but it is very rare to install civil air defense doors in circular tunnels and horseshoe-shaped tunnels. At present, there are more and more cases where extension lines are set up on existing lines, and construction conditions for line extensions need to be reserved at the end of existing lines. Among them, if the permanent anti-flooding protective airtight door is installed at the connection well of the new and old lines, the permanent civil air defense facilities will not be able to b...

AI Technical Summary

Problems solved by technology

Among them, if the permanent anti-flooding protective airtight door is installed at the connection well of the new and old lines, the permanent civil air defense facilities will not be able to be installed and used normally during the construction of the extension line. The well is connected to the air duct, and the air duct leads to the outside environment. As a result, the civil air defense unit on the existing line is in an undefended state, and due to the long construction period of the subway, the flooding of the tunnel during heavy rain will seriously affect the safety of the adjacent underground operation area

In addition, when the extension line is under construction, if the existing line does not stop, the construction area and the operation area may overlap and intersect, which will affect the safety of the old line operation

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