Patent ID: 6106200
Filing Date: 2000-08-22
Classification: E02D,E21B,E21D

Abstract:
A method for drilling and placing of roof bolts into holes in soil or rock material, said method comprising:forming a drill hole by a drill bit mounted on a drill rod assembly and forming a lining by a jacket tube,removing, after completion of the drilling procedure, the drill bit from the jacket tube together with the drill rod assembly, and with the advance movement during drilling, at least one thin-walled jacket tube coupled at the end facing away from the work face with the drill bit, divided in a radial direction, is introduced into the drill hole in the axial direction by the drill bit only by tensile action and that after the removal of the drill rod assembly and the drill bit, at least one of a roof bolt is introduced into the jacket tube and a filling is realized with a solidifying material.