Abstract:

The author introduces the basic ventilation methods for mountaincrossing tunnels in this paper. Otherwise, he presents the newly developed ventilation methods for long tunnels with several working faces created by inclined shafts in detail, i.e., jet flow gallery ventilation for tunnels with one inclined shaft and two parallel tubes and air duct ventilation with false ceiling. Finally, he introduces the application conditions and attention points of these two ventilation methods and puts forward some suggestions on development of ventilation during tunnel construction.

Key words: mountaincrossing tunnel, jet flow gallery ventilation for tunnels with one inclined shaft and two parallel tubes, air duct ventilation with false ceiling