List of products by author: S. Freimann

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  EPB Conditioning of Mixed Transitional Ground: Investigating Preliminary Aspects

  Abstract: Challenging conditions are often encountered while excavating mixed transitional ground with Earth Pressure Balance Machines. Soil conditioning plays a key role in understanding and potentially overcoming several of the common issues. This paper summarizes the main aspects of this scenario, and investigates some particularities of the soil that might be vital to the excavation and operation of...

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  Soil Conditioning with Artificial Soil and Foam in EPB-Tunneling

  Abstract: In mechanised tunnelling with EPB-shields operating in closed mode, the excavated soil is used as support medium in order to assure a sufficient stabilisation of the tunnel face. Coarse grained or high permeable soils doesn’t exhibit adequate conditions to be used as a support medium in an EPB shield, which require the increase of cohesion and plastic behaviour of the excavated soil. In this...

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