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List of products by author: B. Nilsen
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Challenges on the design of Mining Caverns
Abstract: Design and construction of caverns for the mining industry have great challenges to address, some of which may be quite different to those found at caverns for civil or hydropower projects. This article aims to describe main features of underground openings in mining and main challenges found on their design, construction and operation. Main challenges include the variable stress field in...
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Operation and Maintenance Costs of Subsea Road Tunnels in Norway
Abstract: In Norway, there are currently more than 30 subsea road tunnels in operation. The Vardø Tunnel was the first one, finalized in 1983. In general, road tunnels require rock support for its stabilization along with other materials, equipment, consumptions and activities that affect the cost during their Operation and Maintenance (O&M). These resources aim to fulfil requirements related to...
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Testing of sprayed waterproofing membranes for single shell sprayed concrete tunnel linings in hard rock
Abstract: Tunnel linings based on sprayed concrete and sprayed waterproofing membranes are being considered for rail and road tunnels in hard rock in Norway. One completed tunnel and several specially constructed test sections with this tunnel lining type have been sampled and investigated in order to determine the in-situ humidity condition of the tunnel lining. The measured humidity contents in the...
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