List of products by author: A. Syomik

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  Investigation into the Stabilizing Effect of Pipe Umbrellas

  Abstract: One of the main hazard scenarios in tunnelling is ground instability in the excavation area, i.e. a collapse of the tunnel face and/or of the tunnel crown and walls over the unsupported span immediately after or during the excavation round. Pipe umbrellas are often applied to mitigate these risks of instability and thus to increase safety during construction. However, the increase in face...

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