Abstract: The invention relates to a device (10) for producing a cavity in a soil from a starting point to a target point along a drilling line for introducing timbering for holding the cavity open having a tunneling head (11), at the outer end of which at least one cutting element (12) for Stripping the soil is provided, wherein the tunneling head (11) has a receiving Chamber (15) which has an opening (16), to which a face conveyor line (17) is connected, and in which at least a first nozzle (21) for discharging a liquid for transporting the stripped soil away from the receiving Chamber is provided, which first nozzle (21) is provided in such a way that the discharge opening thereof is oriented substantially in the direction of the face conveyor line, wherein the advancing drive takes place via an advancing device. It is provided here that at least one second nozzle (23) is provided which is arranged in such a way that the discharge opening thereof is directed substantially onto the soil to be stripped.

Abstract: A tunnel boring device for laying a pipeline in the ground using a boring tool, having; a feed line for supplying a boring fluid to the boring tool; a section, arranged at the rear of the boring tool, for receiving the ground cuttings, wherein the region of the boring tool and the section are filled with boring fluid, with a pressure that corresponds to the pressure in the ground; at least a jet pump for removing the boring fluid mixed with the cuttings; at least one conveying line for removing the boring fluid mixed with cuttings, this line being connected to the delivery side of the pump connected to the section via a suction line. The jet pump is connected to a drive line via which a driving fluid is supplied to the jet pump; the pump is arranged outside then section; and the suction line contains a shutoff valve.

Abstract: A drill string element of a drill string, the drill string element configured to keep the pressure in the annular space between the drill string and the drill hole within calculated limits or to keep the pressures prevailing in the annular space or drill string as small as possible. Settled drill cuttings are brought back into the flow or settlement of the drill cuttings is prevented.

Abstract: The invention relates to a system for laying underground cables or underground lines in the ground near the surface, in a borehole (102) along a laying route (101) between a start point (100) and a target point (110), comprising a boring device (10) comprising an advancing head (12) for creating the borehole (102), a drilling rod (11) and/or a casing (14), wherein the diameter of the advancing head (12) is greater than the diameter of the casing (14) or of the drilling rod (11), so that an annular space (121) is formed between the borehole wall (102) and the casing (14) or the drilling rod (11) and the annular space (121) is provided with lubrication and wherein the advancing head (12) relates to a displacement drilling head (15, 16, 41) or a drilling head system (18) comprising a drilling tool (19) and a drilling tool drive (22) for loosening the ground.

Abstract: The invention relates to a device (10) for producing a cavity in a soil from a starting point to a target point along a drilling line for introducing timbering for holding the cavity open having a tunneling head (11), at the outer end of which at least one cutting element (12) for Stripping the soil is provided, wherein the tunneling head (11) has a receiving Chamber (15) which has an opening (16), to which a face conveyor line (17) is connected, and in which at least a first nozzle (21) for discharging a liquid for transporting the stripped soil away from the receiving Chamber is provided, which first nozzle (21) is provided in such a way that the discharge opening thereof is oriented substantially in the direction of the face conveyor line, wherein the advancing drive takes place via an advancing device. It is provided here that at least one second nozzle (23) is provided which is arranged in such a way that the discharge opening thereof is directed substantially onto the soil to be stripped.

Abstract: A drill head for expanding a pilot bore in order to create a borehole having a borehole wall as a result of loosening rock surrounding the pilot bore in the region of a working face, which extends in a substantially right-angled manner to the pilot bore, including a basic body including a connection element for a pilot bore string including at least two tool holders, in that at least one tool holder is at a greater spacing radially from the basic body than the at least one other tool holder such that there is at least one outer and one inner drilling tool which are movable into engagement with the working face, and the at least one inner drilling tool and the at least one outer drilling tool are each arranged offset at an angle in relation to the working face.

Abstract: The invention relates to a tunnel boring device for creating a bore from a starting point to a target point in the ground, along a predefined boring line by advancing the tunnel boring device in order to create a tunnel or for laying a pipeline in the ground using a boring tool to break up the ground; having at least one feed line for supplying a boring fluid to the boring tool; having at least one section, arranged at the rear of the boring tool, for receiving the ground which has been broken up and is present in the form of cuttings, wherein the region of the boring tool and the at least one section are essentially filled with boring fluid, and the boring fluid is provided in the region of the boring tool and within the at least one section with a pressure that essentially corresponds to the pressure in the ground at the heading face; having at least one pump for removing, from the section, the boring fluid mixed with the cuttings; having at least one conveying line for removing, from the bore, the boring f

Abstract: The invention relates to an apparatus for removing drill cuttings loosened by a drilling tool (113) during the operation of producing a drill hole (101, 102) for laying a pipeline, having at least one pump (12) for pumping out drilling fluid mixed with the drill cuttings, and having at least one receiving body (11) with at least one receiving chamber (17), which is connected to a drill-cuttings region (117) behind the drilling tool (113) via openings (14). It is therefore an object of the invention to create an apparatus for removing drill cuttings which makes it possible for the drill cuttings to be transported away reliably using a pressure-delivery method. The solution of the invention provides, on the receiving body (11), a receiving element (13), which is intended for receiving the drill cuttings mechanically and on which are arranged at least some of the openings (14) via which the drill cuttings pass into the receiving chamber (17).

Abstract: The invention relates to a system for laying underground cables or underground lines in the ground near the surface, in a borehole (102) along a laying route (101) between a start point (100) and a target point (110), comprising a boring device (10) comprising an advancing head (12) for creating the borehole (102), a drilling rod (11) and/or a casing (14), wherein the diameter of the advancing head (12) is greater than the diameter of the casing (14) or of the drilling rod (11), so that an annular space (121) is formed between the borehole wall (102) and the casing (14) or the drilling rod (11) and the annular space (121) is provided with lubrication and wherein the advancing head (12) relates to a displacement drilling head (15, 16, 41) or a drilling head system (18) comprising a drilling tool (19) and a drilling tool drive (22) for loosening the ground.

Abstract: Drill string element for installing in a drill string, in particular for horizontal or slant directional drilling (HDD or SDD), for the creation of a drill hole (100) along a drill path, in particular for laying a pipeline, comprising a tubular main body (11) having bilateral connecting elements (13, 15) for connecting the drill string element (10) to the drill string, wherein the drill string element (10) has an interior (22) through which a flushing medium for the flushing of the drill hole (100) and the evacuation of drill cuttings loosened by a drill head connected to the drill string is transportable, comprising at least one opening (23), connected to the interior (22), in a wall (16) of the main body (11), through which at least a part of the flushing medium flowing through the interior makes its way into an annular space (102) between drill hole wall (103) and main body (11), characterized in that on the outer wall (16), over the opening (23), is arranged at least one body (17), in which is disposed, a

Abstract: A drill head for expanding a pilot bore in order to create a borehole having a borehole wall as a result of loosening rock surrounding the pilot bore in the region of a working face, which extends in a substantially right-angled manner to the pilot bore, and having a basic body on which a connection element for a pilot bore string is provided, wherein at least one tool holder for at least one drilling tool is provided on the basic body, characterized in that at least two tool holders are provided, in that at least one tool holder is at a greater spacing radially from the basic body than the at least one other tool holder such that there is present at least one outer and one inner drilling tool which are movable into engagement with the working face, and in that the at least one inner drilling tool and the at least one outer drilling tool are each arranged offset at an angle in relation to the working face.

Abstract: The invention relates to an apparatus for removing drill cuttings loosened by a drilling tool (113) during the operation of producing a drill hole (101, 102) for laying a pipeline, having at least one pump (12) for pumping out drilling fluid mixed with the drill cuttings, and having at least one receiving body (11) with at least one receiving chamber (17), which is connected to a drill-cuttings region (117) behind the drilling tool (113) via openings (14). It is therefore an object of the invention to create an apparatus for removing drill cuttings which makes it possible for the drill cuttings to be transported away reliably using a pressure-delivery method. The solution of the invention provides, on the receiving body (11), a receiving element (13), which is intended for receiving the drill cuttings mechanically and on which are arranged at least some of the openings (14) via which the drill cuttings pass into the receiving chamber (17).