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| | Abstract | | A Reverse Vertical Seismic Profiling (RVSP) using blasting vibration has been carried out to obtain three-dimensional geological image such as faults and fracture zones in granite around the Mizunami Underground Research Laboratory during the shaft excavation works. In this study, results of RVSP are compared with existing information such as borehole investigation data and geological model to estimate spatial distribution of faults and fracture zones, and the applicability of this method to estimate geological structure in the granite is discussed. |
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