136008 ⎘
Tunnels or galleries, with or without linings; Methods or apparatus for making thereof ; Layout of tunnels or galleries; Making by using boring or cutting machines for making a slit along the perimeter of the tunnel profile, the remaining core being removed subsequently, e.g. by blasting
Tunnel Extraction Machine (TEM)
#2Wire saw excavation apparatus capable of changing cutting line in accordance with cutting section and tunnel excavation method using same
#3Projectile augmented boring system
#4Method for wire saw excavation
#5Method for wire saw excavation
#6Excavation system using a water jet, and excavation method using the same
#7METHOD FOR CONSTRUCTING AN UNDERGROUND TUNNEL OR HOLE TO CREATE AN IMPERVIOUS PLUG FOR THE STORAGE OF HAZARDOUS, PARTICULARLY RADIOACTIVE, WASTE