B-15 SEISMIC IMAGING OF GROUND CONDITIONS FROM BURIED CONDUITS AND BOREHOLES Abstract 1 R. J. WHITELEY Coffey Geosciences Pty. Ltd PO Box 125 North Ryde NSW 1670 Australia Society has a major investment in underground assets beneath its major cities principally sewers and pipelines. There is widespread concern that this urban infrastructure has not been adequately maintained to meet needs. Managers of these assets rely on condition assessments that are based on internal inspection and restricted geotechnical information. These assessments are inadequate because they fail to effectively sample test and account for external ground conditions. Unexpected catastrophic ground collapse above


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