FIELD: mining.
SUBSTANCE: device consists of drill screw, of enveloping pipe surrounding drill screw, of drive for driving at least drill screw into rotation around drilling axis, of unloading facility for removal of developed l from drill screw equipped with soil removing duct for developed lb and of mast along which drill screw with unloading facility travels. There is also a facility for change of length (l) of soil removing duct. There is disclosed the method of bore drilling in lb by means of the device for soil drilling, whereat the drill screw is rotated with the rotating drive around drilling axis; also the drill screw together with the unloading facility is advanced into soil in the direction of drilling axis; notably, length (l) of soil removing duct is adapted in the direction of drilling axis.
EFFECT: facilitating more safe, clean and reliable removal of developed soil.
11 cl, 4 dwg
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