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 (1) in the ground (2), a drill-hole (4) is produced along a laying line (6), from a starting pit (5) to a target pit (7), by a drilling head (3) at the start of a pipeline (1), the drilling head (3) being connected to a laying vehicle (9) on the ground surface (10) via a narrow vertical connecting device (8). The soil dislodged by the drilling head (3) is removed from the drill-hole (4) and conveyed to the surface. The force required for the drilling and laying operation is applied by the laying vehicle (9) and/or by a feed device (12) in the starting pit (5).

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: A method for trenchless pipe laying, a pipeline is constructed form a starting point to a goal point undercrossing an obstacle wherein the constructing of a bore hole and laying the prefabricated pipeline, which is constructed in one piece on the surface, are done in one work step, wherein at the front end of the pipeline a steerable drilling device is arranged, wherein a pipe thrusting device is arranged at the starting point applying forces from the outside to the pipeline via traction preferably friction by pushing the pipeline from a starting point to a goal point, wherein at the same time the necessary contact forces for drilling are transferred, wherein the cuttings produced during the drilling by the drilling device are removed and transported hydraulically out of the bore hole via a transport line inside the pipeline, and wherein the annular space between pipeline and bore hole wall created during drilling is continuously filled with a drilling suspension.

Abstract: With a method for trenchless pipe laying a pipeline (8) is constructed form a starting point (1) to a goal point (3) undercrossing an obstacle (9) wherein the constructing of a bore hole (12) and laying the prefabricated pipeline (8), which is constructed in one piece on surface, are done in one work step, wherein at the front end of the pipeline (8) a steerable drilling device (6) is arranged, wherein a pipe thrusting device (5) is arranged at the starting point (1) applying forces from the outside to the pipeline (8) via traction preferably fiction by pushing the pipeline (8) from a starting point (1) to a goal point (3), wherein at the same time the necessary contact forces for drilling are transferred, wherein the cuttings produced during the drilling by the drilling device (6) are removed and transported hydraulically out of the bore hole (12) via a transport line inside the pipeline (8), and wherein the annular space between pipeline (8) and bore hole wall (11) created during drilling is continuously fi

Abstract: An arrangement for detecting the state of rotation of cutting rollers (2) of a shield tunneling machine has at least one cutting roller (2) comprising a generator unit (12) that generates electrical energy when the respective cutting roller (2) is rotating, a signal-generating unit (16) connected to the generator unit (12), and an antenna unit (17) connected to the signal-generating unit (16). The signal generating unit (16) serves to generate transmission signals characteristic of the state of rotation of the respective cutting roller (2). An antenna (20) of the antenna unit (17) is disposed over at least one outer circumferential portion of the respective cutting roller (2) and is equipped for the wireless transmission of the transmission signals. The arrangement further comprises a receiving unit equipped to receive the transmission signals and interpret them regarding the state of rotation of the respective cutting roller (2).

Abstract: Present in a tail shield (1) for a shield tunneling apparatus are a number of grouting lines (3) that are open to a tail shield end (4) and that can be supplied with filling material for grouting a ring gap (7) with the filling material, such as mortar, for example. In addition, additive material lines (8) that can be supplied with additive material are present, which empty into the grouting lines (3) in an end segment (12) of said grouting lines (3). As a result, an additive material, such as a solidification accelerator, for example, can be added immediately before the mixture is discharged into the ring gap (7), so that the risk of a blockage in the grouting lines (3), which are not accessible in the region of the tail shield end (4), is relatively low.

Abstract: Present in a tail shield (1) for a shield tunneling apparatus are a number of grouting lines (3) that are open to a tail shield end (4) and that can be supplied with filling material for grouting a ring gap (7) with the filling material, such as mortar, for example. In addition, additive material lines (8) that can be supplied with additive material are present, which empty into the grouting lines (3) in an end segment (12) of said grouting lines (3). As a result, an additive material, such as a solidification accelerator, for example, can be added immediately before the mixture is discharged into the ring gap (7), so that the risk of a blockage in the grouting lines (3), which are not accessible in the region of the tail shield end (4), is relatively low.