List of products by author: D. Simic

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  EPB operation to avoid settlement problems

  Abstract: An important aspect of the operation of closed-faced Tunnel Boring Machines, either EPB or slurry, is the control of face pressure in order to minimize the effect on the surrounding ground due to movements. This article discusses the available models in current literature, either i) based on analytical models and centrifuge tests, which correlate the surface settlement with the tunnel face...

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  EPB operation to avoid settlement problems

  Abstract: Urban tunnelling projects inevitably involve risks associated with construction-induced ground movements and their ef- fects on overlying buildings and facilities. Projects impose stringent limits on allowable ground movements (sometimes measured as vo- lume loss), and evaluate performance through careful monitoring at selected sections and structures along the tunnel alignment. In addi- tion,...

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  Tunnel excavation through a building piled foundation

  Abstract: The main problem addressed in this paper is a methodology to assess the effects of tunnel excavation passing directly underneath piled buildings, truncating several of the foundation piles, evaluating the effects on the structures as well as the corresponding risk level. In any case, it must be taken on account that any disruption in the normal life of the installations will not be permitted...

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