Drill head and method for producing a vertical borehole in the ground

Abstract

The invention relates to a drill head and to a method for producing a substantially vertical borehole in the ground, in particular for producing a shaft, having a body (11) which is able to be connected to a rotary drive of a drilling device, having drilling tools (12) which for loosening the ground at a face (100) of the borehole are disposed on the body (11), having a discharge device which for discharging the loosened ground on the face (100) is able to be connected to a suction unit for suctioning a conveying medium (90) by way of a conveying line (31), wherein the discharge device has an opening region (22) which is disposed on the body (11) and has at least one opening (23) in the region of the drilling tools (12) at the face. It is provided here that the at least one opening (23) of the opening region (22) is connected to a suction box (20) which as a component part of the discharge device has, at an end opposite the opening (23), a connector opening (29) for connecting to the conveying line (31), that at least one element which exerts an acceleration on the loosened ground in the region of the suction box (20) is provided, by way of which acceleration the ground loosened by the drilling tools (12) is able to be moved into the opening region (22) and/or through the opening (23) into the suction box (25), wherein the loosened ground (110) is acquired by the conveying medium (90) in the opening (23) and/or in the suction box (25) and is able to be discharged by way of the conveying line (31) by the suction unit.

Dependencies are inferred from the claim text.