P115 Combined Analysis of Electrical Resistivity and Geotechnical SPT Blow Counts for the Safety Assessment of Fill Dam S. Oh* (Kangwon National University) B.S. Suh (Kangwon National University) & H. Lee (Gyeongin National University of Education) SUMMARY Electrical resistivity survey and the geotechnical SPT blow counts (N value) method were simultaneously analyzed to investigate the stability of a center-core type earth-fill dam against the seepage phenomenon. The analysis shows that the zones with low resistivity value generally have low N value. However some zones with a high resistivity pattern are not accompanied by an increase of its N value and


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