DIN EN ISO 22476-1

Abstract

This part of ISO 22476 deals with equipment requirements, the execution of and reporting on electrical cone and piezocone penetration tests. <br>NOTE 1 This part of ISO 22476 fulfills the requirements for electrical cone and piezocone penetration tests as part of geotechnical investigation and testing according to EN 1997-1 [3] and EN 1997-2 [4]. <br>Within the electrical cone and piezocone penetration test, two subcategories of the cone penetration test are considered: <br>-&#160;electrical cone penetration test (CPT), which includes measurement of cone resistance and sleeve friction; <br>-&#160;piezocone test (CPTU), which is a cone penetration test with the additional measurement of pore pressure. <br>The CPTU is performed like a CPT with the measurement of the pore pressure at one or several locations on the penetrometer surface. <br>NOTE 2 CPT or CPTU can also be used without measurement of sleeve friction, but this is not covered in this part of ISO 22476. <br>This part of ISO 22476 specifies the following features: <br>a) type of cone penetration test, according to Table 1; <br>b) application class, according to Table 2; <br>c) penetration length or penetration depth; <br>d) elevation of the ground surface or the underwater ground surface at the location of the cone penetration test with reference to a datum; <br>e) location of the cone penetration test relative to a reproducible fixed location reference point; <br>f) pore pressure dissipation tests. NOTE 3 This part of ISO 22476 covers onshore and nearshore CPT. For extra requirements for offshore CPT, see NORSOK G-001 [8].