%0 Journal Article %T PROBLEMS OF MECHANIZED TUNNELING IN GASSY GROUND CONDITIONS A CASE STUDY: NOUSOUD WATER TRANSMISSION TUNNEL %A Tali, Naser %A Lashkaripour, Gholam Reza %A Ghafoori, Mohammad %A Hafezi Moghaddas, Naser %J International Journal of Geography and Geology %@ 2306-9872 %D 2014