Abstract: CPT (Cone Penetration Testing) is a well-established site investigation technique, widely recognized for its ability to provide reliable and high-resolution data for subsurface characterization. However, its integration with emerging technologies, such as MWD (Measurement While Drilling), opens new possibilities for enhancing real-time data acquisition and improving decision-making in geotechnical and drilling applications.
This paper explores the possibility of correlating CPT and sonic MWD parameters by analysing data sets for locations where CPT and sonic MWD were applied side-by-side. Such correlations could supplement the CPT data obtained during soil investigation with data acquired during the drilling of deep foundation elements in the construction phase. This approach would enable extending CPT profiles to greater depths in cases where rocks or other harder layers prevent the use of CPT. It would also fundamentally shift the standard practice where soil investigations are confined to the pre-construction phase, leaving construction records rarely used for updating the soil model.
Initially, this paper describes an analysis between sonic MWD and both UCS and soil type.