The invention relates to a drive device for a diaphragm wall cutter, with a hydraulic motor, a gear unit, to which at least one cutting wheel of the diaphragm wall cutter can be connected on the output side, and a drive shaft which connects the hydraulic motor to the gear unit, wherein the drive shaft is mounted by way of at least one drive shaft bearing which is arranged between the hydraulic motor and the gear unit, wherein the drive shaft bearing has a lubricant feed line which is connected to a leakage discharge line of the hydraulic motor and/or to the hydraulic circuit in order to operate the hydraulic motor, and is configured to lubricate the drive shaft bearing with hydraulic oil.

The invention provides a boring machine (10) for making a trench (T) in soil (S), the machine comprising a frame (12) that extends along a longitudinal direction (A), said frame (12) carrying a boring device (20) provided with four rotary boring members driven by four motors about axes of rotation that are stationary relative to one another.

A bucket raising/lowering and opening/closing device (11) of a deep foundation excavator (1) includes a raising/lowering cylinder (12), a first raising/lowering sheave (14) and a first opening/closing sheave (15) that move in an expansion/contraction direction of the raising/lowering cylinder (12), a second raising/lowering sheave (17), a second opening/closing sheave (20), an opening/closing cylinder (18) that moves the second opening/closing sheave (20) to be closer to and to be separated from the first opening/closing sheave (15), a raising/lowering rope (24) that is wound around the first raising/lowering sheave (14) and the second raising/lowering sheave (17), and an opening/closing rope (25) that is wound around the first opening/closing sheave (15) and the second opening/closing sheave (20). In addition, provided are a slack adjustment cylinder (26) that expands and contracts to adjust the slack of the opening/closing rope (25), and a slack adjustment sheave (28) that moves in a direction of being closer to and being separated from the second opening/closing sheave (20) in response to an expansion/contraction movement of the slack adjustment cylinder (26).

The invention relates to an anchoring kit for a drilling machine provided with a frame, the anchoring kit including at least a first anchoring module having: a first part including an anchoring device for immobilizing the first part in the soil; a second part including a device for fixing to the frame; and a displacement device for moving the second part relative to the first part along a first direction.

The disclosure concerns an excavation machine for making a trench into ground including a frame extending along a longitudinal direction, an excavation device disposed under the lower end part of the frame, the excavation machine further including at least a first guide device comprising at least a first guide flap protruding from a first lateral side of the frame outwardly of the frame, and wherein, considered in a plane perpendicular to the longitudinal direction, the first guide flap is inclined relative to the first lateral side.

The invention relates to a slurry wall cutter for producing vertical ground trenches, which can be connected to a carrier apparatus, comprising a frame, a motor unit and a drive unit which is releasably connectable with the frame, wherein the drive unit comprises a carrier structure, at least one gear mechanism arranged on the carrier structure as well as a cutting tool for crushing ground material, which connected to the gear mechanism and drivable by the motor unit, wherein the motor unit is releasably connectable to the drive unit and wherein the frame and the drive unit respectively comprise guide means which are configured in such a way that the drive unit can be pushed laterally into and out of the frame.

The disclosure relates to an work implement, in particular a cable excavator, comprising a mechanical diaphragm wall gripper with two gripper buckets, which is suspended on the work implement by means of a hoisting cable and a closing cable, a hoisting cable winch on which the hoisting cable can be wound up and unwound for adjusting the diaphragm wall gripper, in particular substantially vertically, a closing cable winch on which the closing cable for actuating the gripper buckets is mounted so that it can be wound up and unwound, a measuring device with at least one sensor for detecting a current position, speed and/or acceleration, a control unit connected to the measuring device, via which the hoisting and closing cable winches can be actuated, and an input means connected to the control unit for controlling the diaphragm wall gripper.

The invention relates to a construction method and an arrangement for carrying out a construction project involving the production of several foundation elements on a construction site by means of at least one construction apparatus, wherein based on information on starting conditions, in particular on the ground composition, and the at least one construction apparatus as well as specifications for the construction project with the foundation elements to be produced a method sequence with determination of manufacturing parameters for each foundation element to be produced is defined in a computer unit, on the basis of the defined method sequence with the defined manufacturing parameters the production of at least one foundation element is started, during the method sequence actual data are recorded when producing the foundation elements and supplied to the computer unit, the computer unit compares the recorded actual data with target data for the defined method sequence and in the case of a relevant deviation of the actual data from the target data a changed method sequence with changed manufacturing parameters and/or new target data for the foundation elements still to be produced is ascertained by the computer unit and forwarded to the at least one construction apparatus.

The invention relates to a measuring arrangement for measuring a position, in particular a verticality, of a vertically adjustable and lowerable working apparatus with respect to an upper fixed point, with at least one measuring cable which is on the one hand connected to the vertically adjustable working apparatus and on the other hand extends towards the fixed point, at least one measuring means which is connected to the corresponding measuring cable and designed to measure an angle of inclination of the measuring cable relative to a vertical measurement axis and is arranged in a connection region between the measuring cable and the working apparatus, and at least one connecting means which is arranged between the measuring means and the working apparatus and designed to keep the measuring means torsion proof about the vertical measurement axis and at the same time capable of being angled with respect to the vertical measurement axis on the working apparatus. According to the invention provision is made in that the connecting means has a connecting tube which is arranged coaxially to the vertical measurement axis, and in that the connecting tube is designed so as to be torsion proof about the vertical measurement axis and deflectable with respect to the vertical measurement axis.

The invention provides a boring machine (10) for making a trench (T) in soil (S), the machine comprising a frame (12) that extends along a longitudinal direction (A), said frame (12) carrying a boring device (20) provided with four rotary boring members driven by four motors about axes of rotation that are stationary relative to one another.