Evaluation of Cone Penetrometer Testing (CPT) for Use with Transportation Projects Phase 1
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2008-07-01
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Abstract:The ODOT Office of Geotechnical Engineering (OGE) currently uses conventional drilling methods (e.g., hollow stem auger, solid stem auger) to perform subsurface investigations in unconsolidated materials. These techniques have been used for decades and have the advantage of a long track record of experience and success within the state. These methods are, however, time-consuming and expensive to perform, do not provide continuous data, and are not well suited to some types of geologic and environmental conditions. Over the last 20 years, cone penetration testing (CPT) has been gaining acceptance in the U.S. and is now widely used as an alternative or complementary procedure to perform subsurface investigations. ODOT has funded this Phase I project to investigate how this new technology might be utilized to improve the quality and efficiency of ODOT’s subsurface investigation program. This report presents the findings of this investigation and recommendations concerning Phase II implementation.
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