Escape system of underwater suspension tunnel

Abstract

The invention discloses an escape system of an underwater suspension tunnel. The escape system comprises an automatic alarm system, an escape time prolonging system and escape paths. The automatic alarm system comprises a video monitoring device, a water level monitoring device, a temperature measurement and control device, a toxic gas detection device and a centralized control center, wherein theescape time prolonging system comprises a buoyancy-weight ratio adjusting system, a communication channel sealing door and a tunnel portal emergency sealing door; the escape paths comprise the escapepath in the tunnel and the escape path at the top of the tunnel; the escape path in the tunnel comprises a tunnel pavement escape channel, a tunnel upper-layer escape channel and a communication channel of a double-pipe tunnel, wherein the tunnel pavement escape channel and the tunnel upper-layer escape channel lead to a shore connection structure; the tunnel pavement escape channel is arranged in the middle layer of the tunnel; the tunnel upper-layer escape channel enters through a plurality of manholes formed in an upper partition plate; and the escape path at the top of the tunnel comprises a plurality of standby emergency escape exits and rescue underwater boats, wherein the standby emergency escape exits and the rescue underwater boats are arranged at the top of the tunnel. Accordingto the escape system, the water burst speed in the suspension tunnel can be decreased, and enough time is won for escape of personnel.

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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