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List of products by author: H. Ittner
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Expansion of the Stockholm metro Case study of the passage of a fracture zone
Abstract: This paper describes the passage of the Birkavägen fracture zone during the excavation of an access tunnel for the expansion of the Stockholm metro to Nacka. The projects main challenges included requirements to limit ground water inflow and passing the fracture zone area, with a combination of low rock cover and densely fractured rock mass. The tunnel was excavated using drill and blast...
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Investigation of blast fractures from mechanized charging with emulsion during tunnelling
Abstract: A quality factor that can decrease the need for rock reinforcement and maintenance in underground facilities is limitation of blast damage in the tunnel contour. This is usually required for underground constructions with a long operation time, such as public tunnels for transport or underground repositories for nuclear waste. A project was initiated by the Swedish Nuclear Fuel and Waste...
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