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During the design work for the permit application for the approximately 27.3 km long new Semmering Base Tunnel between Gloggnitz and Mürzzuschlag, it has become apparent that due to its extent, the section through the Graßberg‐Schlagl fault system will be more problematic than had been assumed during the route selection process. The article discusses the technical possibilities for the construction...
This paper deals with the time dependent behaviour and the excavation of deep tunnels in weak rocks. Recent contributions to the formulation of a constitutive model for representing such a behaviour, advanced laboratory testing for parameters identification, and design analysis methods for use in engineering practice are discussed. The Stress Hardening ELasto VIscous Plastic constitutive model (SHELVIP),...
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