Abstract: A drill head and a method having a body connected to a rotary drive of a drilling device, for loosening the ground at a face of the borehole, having a discharge device for discharging the loosened ground to a suction unit for suctioning a conveying medium, wherein the discharge device has at least one opening in the region of the drilling tools The at least one opening is connected to a suction box which has, at an end opposite the opening a connector opening for connecting to a conveying line, that acceleration exerted on the loosened ground in the region of the suction box moves loosened ground through the opening into the suction box wherein the loosened ground acquired by the conveying medium in the opening and/or in the suction box and is discharged.

Abstract: A coupling element connectable to a string of one or more pipes, for example, a drill string of one or more pipes or drill pipes is provided. The coupling element is configured to excite, responsive to a data signal fed to the coupling element, an electromagnetic wave in the string. The coupling element comprises a feed portion at a first end of the coupling element, the feed portion to receive the data signal, a first electrically conductive portion extending from the feed portion towards a second end of the coupling element, the second end to be connected to the string for forming an electrically conductive connection between the first electrically conductive portion and the string, and a second electrically conductive portion extending from the feed portion towards the second end of the coupling element. The first and second electrically conductive portions are arranged so as to define a waveguide. The waveguide expands in a direction from the first end towards the second end.

Abstract: The invention relates to a device for the automated installation of at least one tunnel lining segment of a tunnel lining ring, said device being couplable to a tunnelling machine, • having a manipulator with at least one tool for receiving, holding and placing the at least one tunnel lining segment, and with at least one actuator for moving the at least one tool, the at least one tool being movable • by means of the at least one actuator in the radial, tangential and/or axial direction in relation to the machine axis of the tunnelling machine in the space of the tunnel section created by the tunnelling machine, • having at least one tool position sensor, which is provided on the manipulator and/or tool, for sensing the respective actual position and actual location of the tool in the space of the tunnel section, having at least one tunnel lining segment sensor, which is provided on the manipulator and/or tool, with which an actual position and/or actual location of at least one section of at least one alread

Abstract: The invention relates to a tunnel lining composed of at least two concrete elements (10) each having at least one protective element (20) connected to the concrete element, wherein the protective element (20) has a protective portion which has a first side which faces the concrete element (10) and on which there is provided at least one connecting element (17) for producing a retaining connection between the protective portion and the concrete element (10), wherein the protective portion consists of at least one plastic, wherein the protective element (20) has at least one protective element seal (30) which is connected to the protective portion (20), wherein the connection to the protective portion (20) is gas-tight and liquid-tight, wherein a joint (40) is present between the at least two concrete elements (10) arranged to form the tunnel lining (300), wherein the joint (40) is sealed in a gas-tight and liquid-tight manner with respect to the tunnel interior (100) by at least one protective element seal (30

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: 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 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 protective element for connecting to a concrete element of a tunnel extension, which has a protective section having a first side facing the concrete element (10), on which first side at least one connecting element (17) is provided for establishing a retaining connection of the protective section to the concrete element (10), wherein the protective section is made from at least one plastic material, characterized in that the protective section (20) has at least one drainage element (40) through which a fluid can pass from the first side of the protective section (20) to the opposite side of the protective section (20) facing away from the concrete element (10).

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: Methods and devices for a boring and laying device for the trenchless laying of a pipeline, including a boring head, wherein the boring head includes a connection for a pilot bore linkage, wherein a pilot bore is produced from a starting point to a destination point along a predetermined boring line, a pump for suctioning and conveying away the drillings, a conveying portion behind the boring head in which at least one suction element for receiving and conveying away drillings, and a connecting portion including a connection for the pipeline. The pilot borehole is expanded, and simultaneously the pipeline is laid by pulling the pilot bore linkage out of the borehole on one side and/or by pushing the pipeline into the borehole, wherein drillings are hydraulically received behind the boring head of the boring and laying device and conveyed away out of the borehole with a pump.

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 protective element (20) for connecting to a concrete element (10) of a tunnel lining, to the concrete element (10) and to the method for producing the concrete element (10). It is an object of the invention to provide a protective element (20) for a tunnel lining, or the associated concrete element, which ensures that the protective casing of the tunnel lining is better safeguarded against corrosive gases or liquids. The solution of the invention provides that the protective element (20) is produced from an injection-moldable plastics material, that a protective portion (21, 22, 23) is connected in a single piece to a seal (30), wherein the connection is gas-tight and liquid-tight, that the protective portion (21, 22, 23) is connected in a single piece to a connecting element (24, 25, 26, 27, 28), and that the single-piece connection is produced by injection molding of the plastics material.

Abstract: The invention relates to a protective element (20) for connecting to a concrete element (10) of a tunnel lining, to the concrete element (10) and to the method for producing the concrete element (10). It is an object of the invention to provide a protective element (20) for a tunnel lining, or the associated concrete element, which ensures that the protective casing of the tunnel lining is better safeguarded against corrosive gases or liquids. The solution of the invention provides that the protective element (20) is produced from an injection-moldable plastics material, that a protective portion (21, 22, 23) is connected in a single piece to a seal (30), wherein the connection is gas-tight and liquid-tight, that the protective portion (21, 22, 23) is connected in a single piece to a connecting element (24, 25, 26, 27, 28), and that the single-piece connection is produced by injection molding of the plastics material.

Abstract: The invention relates to a protective element (20) for connecting to a concrete element (10) of a tunnel lining, to the concrete element (10) and to the method for producing the concrete element (10). It is an object of the invention to provide a protective element (20) for a tunnel lining, or the associated concrete element, which ensures that the protective casing of the tunnel lining is better safeguarded against corrosive gases or liquids. The solution of the invention provides that the protective element (20) is produced from an injection-moldable plastics material, that a protective portion (21, 22, 23) is connected in a single piece to a seal (30), wherein the connection is gas-tight and liquid-tight, that the protective portion (21, 22, 23) is connected in a single piece to a connecting element (24, 25, 26, 27, 28), and that the single-piece connection is produced by injection molding of the plastics material.

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 method and a device for creating an underwater foundation of a building, wherein a base element is provided as a module carrier (11) at the erection site and a pile (6) forms the foundation to be created or is a component of the foundation, wherein the pile (6) is implemented as a hollow body. The aim of the invention is to allow the creation of a foundation in geologically difficult conditions, while simultaneously reducing noise emissions in sensitive areas.

Abstract: A compact monitoring device for monitoring the state of rotation of a disk cutter of a shield tunnel boring machine is integrated into a clamping element for fastening the disk cutter. A sensor module of the monitoring device is arranged in close proximity to the disk cutter but without touching so that a state of rotation of the disk cutter generated by transmitters mounted in the disk cutter is reliably ensured even under the rough environmental conditions prevailing in shield tunnel boring.

Abstract: A compact monitoring device for monitoring the state of rotation of a disk cutter of a shield tunnel boring machine is integrated into a clamping element for fastening the disk cutter. A sensor module of the monitoring device is arranged in close proximity to the disk cutter but without touching so that a state of rotation of the disk cutter generated by transmitters mounted in the disk cutter is reliably ensured even under the rough environmental conditions prevailing in shield tunnel boring.

Abstract: The invention relates to a method for introducing a vertical shaft underground and to a shaft driving machine set up particularly for performing the method, wherein a cutting wheel is rotated solely about a horizontal axis until a penetration trough having a predetermined penetration depth is formed, and the cutting wheel is then also rotated about a central vertical axis until a shaft foot is dug out to the penetration depth. A relatively high sinking rate is thereby achieved for the shaft.

Abstract: In the case of a method for laying pipelines in the ground, a drill-hole is produced along a laying line, from a starting pit to a target pit, by a drilling head at the start of a pipeline, the drilling head being connected to a laying vehicle on the ground surface via a narrow vertical connecting device. The soil dislodged by the drilling head is removed from the drill-hole and conveyed to the surface. The force required for the drilling and laying operation is applied by the laying vehicle and/or by a feed device in the starting pit.