Mikaeil, R.; Shaffiee Haghshenas, S.; Shirvand, Y.; Valizadeh Hasanluy, M.; Roshanaei, V. Risk Assessment of Geological Hazards in a Tunneling Project Using Harmony Search Algorithm (Case Study: Ardabil-Mianeh Railway Tunnel). Civ Eng J 2016, 2, 546-554.