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List of products by author: S. Kube
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Electrical Resistance Measurements of Materials Relevant in Tunnelling to Detect
Abstract: In slurry shield tunnelling, knowledge of the existing support mechanism at the tunnel face is of great importance. So far, no precise statements can be made about the storage of bentonite particles in the soil structure of soft soil. Geoelectrics offers the possibility to create structural models of soils in real time by determining the electrical resistance of the soil. The electrical...
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Practical Application of a Cement-free Shotcrete for Tunnel Refurbishment
Abstract: Existing road and railway tunnels in Central Europe increasingly show signs of aging and deterioration, which is particularly evident in the tunnels’ inner lining. Due to dramatic tunnel fires, and novel research findings, German authorities have reviewed and revised several guidelines for the design of tunnel structures in recent years. In the national research project KOINOR, a cement-free...
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Recommendations for Efficient Face Support in Slurry Shield Tunnelling
Abstract: In slurry shield tunnelling, a reliable face support is presumed if a support pressure is transferred and the slurry excess pressure provides efficient support pressure on the soil skeleton. To ensure face stability, the support pressure transfer needs to be provided within the theoretical sliding wedge after Horn (1961) at the tunnel face. Therefore, the penetration depth of the bentonite...
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