136028 ⎘
Tunnels or galleries, with or without linings; Methods or apparatus for making thereof ; Layout of tunnels or galleries; Devices for removing or hauling away excavated material or spoil; Working or loading platforms using hydraulic or pneumatic conveying means
Plasma Drilling System
#2Tunnel boring system
#3SQUEEZING DEVICE FOR UNDERGROUND PROJECT
#4Tunnel boring device and system for the hydraulic removal of cuttings, and system for producing a stable fluid pressure for a boring fluid in the region of a cutting disk of the tunnel boring device
#5Automated device for drilling a hole in the vault and walls of a tunnel and for installing an anchoring element into said hole
#6Method and device for transporting overburden away during tunnelling
#7Bore head for microbore operation
#8Method and means for processing oil sands while excavating
#9Method and means for recovering hydrocarbons from oil sands by underground mining
#10Method and means for processing oil sands while excavating
#11Method of constructing underground gallery by using pneumatic transfer system and stratum disposal method
#12Device, system and method for reinforcing a tunnel