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- W603329260 abstract "The English Channel Tunnel will link the European Continent with the United Kingdom. Responsibility for planning the English Channel Tunnel is shared by both the British and French Governments and the contractors involved. The problems to be solved will be complex, the most essential one being providing clean air. Engine fumes could be reduced by transporting all road vehicles on special electrically hauled railway flat cars. Ventilation of steam railway tunnels is very complicated. Natural ventilation may give an upward draft in winter and a downward draft in summer. Either may be completely upset by normal changes in wind speeds and directions. If road vehicles use their own engines in the tunnel, carbon dioxide, carbon monoxide, lead, nitrogen oxides, asbestics debris from brake shoes, and rubber debris from tires will need consideration in the confined conditions of the tunnel. Much research has been conducted, and its results will be very helpful when planning the English Channel Tunnel. The following hazards must be taken into consideration when building a tunnel: dust and fire risks coming from porous noise-absorbing materials used for lining; noise which builds up in confined spaces by echoing; odors of nitrogen oxides produced by electrical sparking; fire risks from any fixed or mobile sources; humidity, which, when excessive, will shorten the useful life of electrical components; and temperature variations, which should be avoided as much as possible for the sake of passengers and maintenance staff. The salt from the sea air will greatly increase corrosion of essential components. The possibility of using steam engines should be completely excluded because of noxious emissions and the danger of not seeing an approaching engine in the dense fog generated." @default.
- W603329260 created "2016-06-24" @default.
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- W603329260 date "1972-01-01" @default.
- W603329260 modified "2023-09-27" @default.
- W603329260 title "CLEAN AIR TUNNELS" @default.
- W603329260 hasPublicationYear "1972" @default.
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