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  Preparations for EPB TBM Tunnelling Through Challenging Ground Conditions

  Thiess is a top tier Australian integrated tunnelling,construction and mining services provider, with more than 75 years of experience. Their tunnelling crew faced numerous challenges while driving the TBM through unchartered geological territory, such as high permeability, high water pressure and sandy gravels. This paper focuses on the different methods, devised by the project team in order to prepare in advance for all operational possibilities as well as to alleviate the risks associated with encountering geological conditions, not suited for the operation of a standard EPB TBM.

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