tunnel disadvantage and fugitive dust abatement and construction

摘要

The present invention relates to a summary chayeok smoke and heat subterranean tunnels follow behind fugitive dust iron powder wind from prevention accident or the platform for comfortable etc. the Han Kyung environmental improvements for improving you write their patented invention both wrapped up to a kind of broken basalt tunnel vision and bury by irrigation sprinkler individually it is during upgrading with pipeline disadvantage because the completely automatic doors of ppuryeoju and installation tunnel are because it is prevention accident event children and the elderly to prevent cigarette or the person that when logging in lights suicidal act that a disadvantage, which prevents fugitive dust and progress on the platform in tunnel that safety glass is completed matching column and door by providing existing humidity invention to electric vehicle,