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Channeling in Fractured Zones and its Potential Impact on the Transport of Radionuclides

Published online by Cambridge University Press:  26 February 2011

Luis Moreno  and
Ivars Neretnieks
Luis Moreno
Affiliation:
Department of Chemical Engineering, Royal Institute of Technology, Stockholm, Sweden
Ivars Neretnieks
Affiliation:
Department of Chemical Engineering, Royal Institute of Technology, Stockholm, Sweden
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Extract

Recent observations in several tunnels and drifts in crystalline rocks in Sweden indicate that there are quite frequent fracture zones in the rock. In a 4500 m long tunnel in Kymmen which has been mapped, more than 60 fracture zones were identified. The water inflow in these zones was assessed and the locations and character of the inflow “points” were charted. It is evident that the water emerges in isolated spots often with quite limited dimensions. The frequency of wet spots is on the order of one or a few per several tens of square meters. Often the spots are seen to be connected to small holes. Similar observations have been made in the caverns and drifts of the Swedish low and intermediate waste repository- SFR.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 127: Symposium BERLIN – Scientific Basis for Nuclear Waste Management XII , 1988 , 779
Copyright
Copyright © Materials Research Society 1989

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References

LITERATURE

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