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The Study on Optimum Ventilation System during Long Tunnel Construction  

Oh, Byung-Hwa (삼성건설)
Lim, Han-Uk (강원대학교)
Publication Information
Explosives and Blasting / v.24, no.2, 2006 , pp. 9-22 More about this Journal
Abstract
In general, tunnel construction except for special cases such as very short tunnels must require an artificial ventilation system. Especially, it is efficient for long tunnels to use the combination of a proper ventilation system according to the progress of the excavation. Neung-Dong Tunnel of which length is 4,580m has been originally designed as using ventilation system of blower and exhaust mixture types. Since it has been expected to result in some problems, its design Is analyzed to find the way to improve ventilation system by estimating the amount of required fresh air, considering various ventilation mixture types, ventilation's fluidity analysis and contaminant's distribution by numerical analysis. Economical efficiency for each type is also reviewed to determine the best ventilation system.
Keywords
ventilation system; long tunnel;
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  • Reference
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