Bauer Spezialtiefbau Gmbh

Christoph Schroeppel

Ulli Wiedenmann

Marcus Daubner

Stefan Schindler

Ralf Meyer

Diego Bellato

Andreas Ackermann

The invention relates to a method for ground-working at a bottom of a body of water and a cleaning device for cleaning an underwater ground-working apparatus. The cleaning device has an enclosing body which extends substantially from a bottom of a body of water to above the water surface and enclosing an inner space, along which the ground-working apparatus can be moved, and a separating device, through which in the enclosing body an upper portion of the inner space can be separated off to form a cleaning area, in which the ground-working apparatus can be received and soil and contamination cleaned from it.

Cleaning device for cleaning an underwater ground-working apparatus and method

The invention relates to a trench wall cutter for producing a trench in the ground having a cutter frame and at least one cutting wheel which is supported in a rotatable manner about an axis of rotation on the cutter frame and has at its outer circumference a plurality of ground working tools for removing ground material. The ground working tools are arranged along an annular path around the axis of rotation. Provision is made for the annular path to run asymmetrically to the axis of rotation of the cutting wheel, wherein the annular path has at least one first circumferential section with a larger distance from the axis of rotation and at least one second circumferential section with a smaller distance from the axis of rotation. The invention furthermore relates to a method for producing a trench in the ground.

Trench wall cutter and method for producing a trench in the ground

The invention relates to a shuttering element for a trench wall and to a method for producing the trench wall. To form the trench wall in the ground a first trench is produced initially, which is filled with a hardenable mass for forming a first trench wall segment. After the production of the first trench and before a hardening of an infilled mass into the first trench wall segment a shuttering element is arranged on at least one front face of the first trench. The shuttering element has a board-shaped base body comprising a first shuttering surface and a second shuttering surface, between which a receiving bead is arranged which is recessed with respect to the two shuttering surfaces. In the receiving bead a sealing tape is arranged which extends along the base body. The receiving bead is covered by a cover element, wherein a receiving space is enclosed in which the sealing tape is arranged.

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Harburg, Germany

Christoph Schroeppel