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List of products by author: A. Aarset
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Characterization and safe disposal of acid generating alum shales in the Follo Line project, Oslo, Norway
Abstract: The Norwegian National Rail Administration is building a new railroad tunnel between Oslo and Ski. It is expected to generate between 9 500 and 18 700 tons of alum shales, CambroOrdovician black mudrocks, characterized by their high potential for generating acid rock drainage (ARD). This project illustrates an integrated management approach, from the characterization of the rock to the safe...
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Detailed engineering geological investigations and numerical modelling for a planned road tunnel in Bhutan Himalaya
Abstract: The Himalayas is generally characterized by steep slopes, lofty hills, and complex geological and tectonic settings. Hence, detailed engineering geological investigations are warranted for planning new underground projects in the Himalayas. This paper describes a feasibility study performed for a planned road tunnel in Bhutan. The study included engineering geological mapping, rock mass...
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Results of in situ pressure measurements during pre-excavation grouting in rock tunnels
Abstract: Grouting of the rock mass around tunnels is performed to reduce water inflow. Pressure and flow-rate of the grout is recorded on the rig during grouting, but there is little documentation of the pressure of groundwater and grout in situ in the drill hole and neighbouring holes before, during and after the grouting. Instrumentation was developed to record pressure at the back of the packers...
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