Herrenknecht Ag

Jens Brandt

Christian Himmelsbach

Gerhard Wehrmeyer

Frédéric Robert Cousseau

Albert Feisst

Markus Münchbach

A device for detecting a content of critical gas in a mining chamber of a tunnel boring machine includes a separation module by which a fluid fed in via an extraction line connection is cleaned of solid and liquid components. A gas line arrangement arranged downstream of the separation module in the flow direction of the fluid carries the fluid, including substantially only gaseous components, through a pressure reducer and through a flow control valve of a metering module by which the gas to be analyzed can be delivered in a controlled manner assisted by a double diaphragm pump and a pressure stabilizer to a gas analysis unit even at high pressures in the cavity.

Tunnel boring machine having a device for detecting a content of critical gas

A cutting roller bearing part, formed as a component of a cutting roller holder for a cutting wheel of a tunnel boring machine, includes a load measuring unit disposed in a receiving space assembly including though lines which is hermetically sealed against an external atmosphere by external closures and a sealing element to provide accuracy and long-term stability for load measurements.

Cutting roller bearing part, cutting roller holder with cutting roller bearing part, cutting wheel with cutting roller holder and tunnel boring machine with cutting wheel

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Bad Krozingen, Germany

Jens Brandt