An escape system for an underwater suspension tunnel

Abstract

The invention discloses an escape system for an underwater suspension tunnel, which comprises an automatic alarm system, an escape time extension system and an escape path. Automatic alarm system includes video monitoring device, water level monitoring device, temperature measurement and control device, toxic gas detection device and centralized control center; escape time extension system includes buoyant weight ratio adjustment system, contact channel sealing door and emergency sealing door at tunnel entrance; escape route includes tunnel The inner escape route and the escape route at the top of the tunnel; the escape route in the tunnel includes the tunnel road surface escape passage leading to the shore structure, the tunnel upper escape passage, and the communication passage of the double-pipe tunnel; the tunnel road surface escape passage is set in the middle layer of the tunnel; the tunnel upper layer escape passage Enter through multiple manholes opened on the upper partition; the escape path at the top of the tunnel includes several backup emergency escape exits and rescue submarines on the top of the tunnel. The escape system of the present invention can slow down the speed of water gushing in the suspension tunnel and buy enough time for personnel to escape.

Description

technical field [0001] The invention relates to an underwater suspension tunnel, in particular to an escape system for the underwater suspension tunnel. Background technique [0002] The submerged floating tunnel, the English name is "Submerged Floating Tunnel", referred to as "SFT". In Italy, it is also called "Archimedes bridge", or "PDA" bridge for short. Generally, it consists of a tubular body floating at a certain depth in the water (the space of the tubular body is large enough to meet the requirements of road and railway traffic), a support system (anchor cables anchored on the seabed foundation, piers or floating boxes on the water) and It is composed of structures on both sides of the river. It is a new type of structure that means of transportation across the two banks separated by deep water. It is suitable for all means of transportation that need to pass through the water. It can pass trains, cars, small motor vehicles and pedestrians, and can also be made to...

AI Technical Summary

Problems solved by technology

The buoy-type floating tunnel is suspended on the buoy on the water surface through anchor cables or anchor chains. The gravity of the tunnel is greater than the buoyancy, and the vertical direction is greatly affected by the fluctuation of the tide level; On the anchorage foundation below the bed, the gravity of the tunnel is less than the buoyancy, and the tunnel will displace or shake under the action of hydrodynamic forces; the pier-column type is actually a tunnel bridge supported on underwater pier columns, and the construction is difficult and expensive

Since the tunnel floats in the water, the installation and construction of the tunnel is affected by wind, waves, currents and ship waves. The underwater positioning of the three types of tunnels and the underwater or underwater docking construction are very difficult, and the comfort and safety of the underwater operation period Risks are unpredictable

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