List of products by author: T. Berner

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  EPB tunnelling in hard rock conditions and transition zones

  Abstract: Various TBM projects around the world are digging in predominantly hard rock conditions – facing difficulties when weathered rock or even soft ground zones penetrate the tunnel profile. To tunnel through these „weak zones”, like in Oslo centre, is a risk to the environment and causes high costs for treating the soil or additional measures if not handled properly. So far, only one TBM project...

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