ISO 22476-1:2012 PDF Download

ISO 22476-1:2012 is a standard that focuses on the geotechnical investigation and testing of electrical cone and piezocone penetration tests. It provides guidelines and requirements for the equipment used, as well as the execution and reporting of these tests. The standard is aligned with EN 1997-1 and EN 1997-2, which are European standards for geotechnical design.

The standard defines two categories of cone penetration tests: the electrical cone penetration test (CPT) and the piezocone test (CPTU). The CPT involves measuring cone resistance and sleeve friction, while the CPTU includes additional measurements of pore pressure. The CPTU is performed in a similar manner to the CPT but with the measurement of pore pressure at one or more locations on the penetrometer surface.

ISO 22476-1:2012 covers various aspects of the cone and piezocone penetration tests, including the type of test, application class, penetration length or depth, elevation of the ground surface or underwater ground surface, location of the test relative to a fixed reference point, and pore pressure dissipation tests.

This standard is important for ensuring consistency and accuracy in geotechnical investigations and testing, providing a standardized approach to the electrical cone and piezocone penetration tests. It helps to improve the reliability and comparability of test results, aiding in the assessment and design of geotechnical structures.