135978 ⎘
Tunnels or galleries, with or without linings; Methods or apparatus for making thereof ; Layout of tunnels or galleries Driving tunnels or galleries through loose materials; Apparatus therefor not otherwise provided for
Mechanical tunneling apparatus and process for tunnel in quicksand stratum
#2NOVEL TUNNEL FORMING SHANKS AND METHODS OF USING
#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
#5Artificial ground freezing method and artificial ground freezing system
#6Method and apparatus for forming tunnels and tunnels formed thereby
#7Bit replacing device for excavating machine
#8MODIFICATIONS TO A TBM STRUCTURE TO PROVIDE ROOF SUPPORT INSTALLATION
#9Underground mining apparatus
#10TUNNEL SUPPORTED ON BEARING BLOCKS
#11Elongated coil assembly for electromagnetic borehole surveying