NF EN ISO 22476-1

NF EN ISO 22476-1

January 2023
Standard Current

Geotechnical investigation and testing - Field testing - Part 1 : electrical cone and piezocone penetration test

This document establishes equipment, procedural and reporting requirements and recommendations on cone and piezocone penetration tests. NOTE       This document fulfils the requirements for cone and piezocone penetration tests as part of geotechnical investigation and testing according to the EN 1997 series. This document specifies the following features: a)    type of cone penetration test; b)    cone penetrometer class according to Table 2; c)    test categories according to Table 3; d)    penetration length or penetration depth; e)    elevation of the ground surface or the underwater ground surface at the location of the cone penetration test with reference to a datum; f)     location of the cone penetration test relative to a reproducible fixed location reference point; g)    pore pressure dissipation tests. This document covers onshore and nearshore cone penetration test (CPT). For requirements for offshore CPT, see ISO 19901-8.

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Main informations

Collections

National standards and national normative documents

Publication date

January 2023

Number of pages

84 p.

Reference

NF EN ISO 22476-1

ICS Codes

93.020   Earthworks. Excavations. Foundation construction. Underground works

Classification index

P94-521-1

Print number

1

International kinship

European kinship

EN ISO 22476-1:2023
Sumary
Geotechnical investigation and testing - Field testing - Part 1 : electrical cone and piezocone penetration test

This document establishes equipment, procedural and reporting requirements and recommendations on cone and piezocone penetration tests.

NOTE       This document fulfils the requirements for cone and piezocone penetration tests as part of geotechnical investigation and testing according to the EN 1997 series.

This document specifies the following features:

a)    type of cone penetration test;

b)    cone penetrometer class according to Table 2;

c)    test categories according to Table 3;

d)    penetration length or penetration depth;

e)    elevation of the ground surface or the underwater ground surface at the location of the cone penetration test with reference to a datum;

f)     location of the cone penetration test relative to a reproducible fixed location reference point;

g)    pore pressure dissipation tests.

This document covers onshore and nearshore cone penetration test (CPT). For requirements for offshore CPT, see ISO 19901-8.

Replaced standards (1)
NF EN ISO 22476-1
February 2013
Standard Cancelled
Geotechnical investigation and testing - Field testing - Part 1 : electrical cone and piezocone penetration tests

<p>ISO 22476-1:2012 deals with equipment requirements, the execution of and reporting on electrical cone and piezocone penetration tests as part of geotechnical investigation and testing according to EN 1997‑1 and EN 1997‑2.</p> <p>Within the electrical cone and piezocone penetration test, two subcategories of the cone penetration test are considered:</p> <ul> <li>electrical cone penetration test (CPT), which includes measurement of cone resistance and sleeve friction;</li> <li>piezocone test (CPTU), which is a cone penetration test with the additional measurement of pore pressure.</li> </ul> <p>The CPTU is performed like a CPT with the measurement of the pore pressure at one or several locations on the penetrometer surface.</p> <p>ISO 22476-1:2012 specifies the following features:</p> <ol> <li>type of cone penetration test;</li> <li>application class;</li> <li>penetration length or penetration depth;</li> <li>elevation of the ground surface or the underwater ground surface at the location of the cone penetration test with reference to a datum;</li> <li>location of the cone penetration test relative to a reproducible fixed location reference point;</li> <li>pore pressure dissipation tests.</li> </ol>

Table of contents
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  • 1 Domaine d'application
  • 2 Références normatives
  • 3 Termes, définitions et symboles
  • 4 Appareillage
  • 5 Modes opératoires d'essai
  • 6 Résultats d'essai
  • 7 Rapport
  • Annexe A (informative) Adéquation des méthodes d'essai
  • Annexe B (normative) Maintenance, vérifications et étalonnage
  • Annexe C (informative) Exemple de rapport d'étalonnage
  • Annexe D (normative) Calcul de la profondeur de pénétration
  • Annexe E (informative) Correction du frottement latéral sur le manchon pour tenir compte de la pression interstitielle de l'eau
  • Annexe F (informative) Préparation du piézocône
  • Annexe G (informative) Techniques de réduction du frottement
  • Bibliographie
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