Practical aspects of the Cone Penetration Tests CPTU as used in the Polish Exclusive Economic Zone of the Baltic Sea

Abstract

The cone penetration test is one of the most widely used methods in land and marine geotechnical site investigations. CPTU allows for a determination of in-situ geotechnical properties of soils, and recognizing soil stratigraphy. This article provides an overview of the CPTU testing equipment that is used for seabed investigation in the Polish Exclusive Economic Zone. It is largely based on experience gained while performing and supervising the tests. The authors describe the proper procedure of testing, and provide detailed information on preparation of the equipment (calibration, placing CPTU unit on seabed).