Method and apparatus for combining resin bonding and...

Method and apparatus for constructing reinforced concrete...

Method and apparatus for cutting formations, especially...

Method and apparatus for developing shafts using small...

Method and apparatus for drilling a tunnel

Method and apparatus for feeding a tunnel roof support...

Method and apparatus for feeding a tunnel roof support...

Method and apparatus for feeding cement material into a...

Method and apparatus for inserting ground anchors

Method and apparatus for lining tunnel walls or ceilings...

Method and apparatus for pneumatically discharging...

Method and apparatus for production of underground pipelines

Method and apparatus for rock mining

Method and apparatus for sinking shafts

Method and apparatus for supporting a mine roof

Method and apparatus for supporting a mine roof

Method and apparatus for supporting the roof of an...

Method and apparatus for supporting the roof of an...

Method and apparatus for the advancing of a sliding form

Method and apparatus for thrusting a shield for use in...