136018 ⎘
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 with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines by means of one single rotary head or of concentric rotary heads having a central part for making a pilot tunnel and a follow-up part for enlarging the pilot tunnel
ROCK-PIERCING FLEXIBLE ROCK DRILLING ROBOT AND ROCK BREAKING METHOD
#2Tunnel boring machine
#3Unmanned intelligent mining machine
#4Full-cut heading machine
#5Device for advancing drillings in the ground