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Characterization of fracture zones in bedrock using 2D resistivity
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 9th EAGE/EEGS Meeting, Sep 2003, cp-52-00108
- ISBN: 978-94-6282-116-3
Abstract
2D resistivity profiling is used to foresee water leakage and construction problems in bedrock tunneling. Optical televiewer inspection and resistivity logging in boreholes indicate good correlation between open fracture frequency and moderate formation resistivity lows from resistivity profiling. More pronounced resistivity lows indicate clay filled and possible unstable fractured bedrock.