Process and device for simultaneously drilling and lining a hole

Details Process and device for simultaneously drilling and lining a hole Process and device for simultaneously drilling and lining a hole

1999-05-12

2000-08-22

Taylor, Dennis L.

Hydraulic and earth engineering

Earth treatment or control

Rock or earth bolt or anchor

175 23, 175257, 405244, 4052591, E21D 2000, E21B 1064

Patent

active

061062006

ABSTRACT:
In a process for drilling, in particular rotary percussion or percussion drilling, and lining holes in the ground or rocks, a hole is percussion and/or rotation drilled by a cutter mounted on boring rods and a lining is formed by a jacket tube. During drilling, at least one jacket tube coupled to the cutter is drawn in the axial direction by the cutter into the bore hole and once drilling is finished, the cutter is at least partially removed from the jacket tube together with the boring rods. In a device for drilling, in particular percussion or rotary percussion drilling, and lining holes in the ground or rocks, a cutter mounted on boring rods drills a bore hole by percussion and/or rotary drilling. The cutter is divided in the radial direction. At least one jacket tube which surrounds the boring rods is located at the end of the cutter away from the drilling surface, around the outer circumference of the cutter, and is form-fittingly joined to the cutter by at least one coupling element so as to be drawn in the longitudinal direction of the bore hole.

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