EN ISO 22476-1:2012

Geotechnical investigation and testing - Field testing - Part 1: Electrical cone and piezocone penetration test (ISO 22476-1:2012)

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.
Within the electrical cone and piezocone penetration test, two subcategories of the cone penetration test are considered:
electrical cone penetration test (CPT), which includes measurement of cone resistance and sleeve friction;
piezocone test (CPTU), which is a cone penetration test with the additional measurement of pore pressure.
The CPTU is performed like a CPT with the measurement of the pore pressure at one or several locations on the penetrometer surface.
ISO 22476-1:2012 specifies the following features:
type of cone penetration test;
application class;
penetration length or penetration depth;
elevation of the ground surface or the underwater ground surface at the location of the cone penetration test with reference to a datum;
location of the cone penetration test relative to a reproducible fixed location reference point;
pore pressure dissipation tests.

Geotechnische Erkundung und Untersuchung - Felduntersuchungen - Teil 1: Drucksondierungen mit elektrischen Messwertaufnehmern und Messeinrichtungen für den Porenwasserdruck (ISO 22476-1:2012)

Dieser Teil von ISO 22476 behandelt die Geräteanforderungen, die Durchführung und die Ergebnisdarstellung von elektrischen Drucksondierungen und Drucksondierungen mit der Piezospitze.
ANMERKUNG 1   Dieser Teil von ISO 22476 erfüllt die Anforderungen für elektrische Drucksondierungen und Drucksondierungen mit der Piezospitze als Teil von geotechnischen Untersuchungen und Versuchen nach EN 1997 1 [3] und EN 1997 2 [4].
Es werden zwei Unterkategorien von Drucksondierungen betrachtet:
-   Die elektrische Drucksondierung (CPT), die die Messung des Spitzenwiderstandes und der Mantel¬reibung umfasst;
-   die Drucksondierung mit der Piezospitze (CPTU), die eine Drucksondierung mit zusätzlicher Messung des Porenwasserdruckes ist.
Die CPTU-Sondierung wird wie eine CPT-Sondierung ausgeführt, mit dem Unterschied, dass der Porenwasserdruck an einer oder mehreren Stellen an der Oberfläche der Sondierspitze gemessen wird.
ANMERKUNG 2   Sowohl die CPT-Sondierung als auch die CPTU-Sondierung können ohne Bestimmung der Mantelreibung ausgeführt werden; dies wird jedoch nicht in diesem Teil von ISO 22476 behandelt.
Dieser Teil von ISO 22476 legt die folgenden Aspekte fest:
a)   die Art der Drucksondierung, nach Tabelle 1;
b)   die Anwendungsklasse, nach Tabelle 2;
c)   die erreichbare Sondierlänge oder Sondiertiefe;
d)   die Höhe der Geländeoberfläche oder die Gewässergrundoberfläche am Ort der Drucksondierung mit Verweis auf eine Bezugshöhe;
e)   die Lage der Drucksondierung mit Bezug zu einem reproduzierbaren örtlich festgelegten Lage-bezugspunkt;
f)   Porenwasserdruck-Dissipationsversuche.
ANMERKUNG 3   Dieser Teil von ISO 22476 behandelt CPT-Sondierungen am Land und im Nearshore-Bereich. Für zusätzliche Anforderungen an CPT-Sondierungen in Offshore-Bereichen siehe NORSOK G 001 [8].

Reconnaissance et essais géotechniques - Essais en place - Partie 1: Essai de pénétration au cône électrique et au piézocône (ISO 22476-1:2012)

L'ISO 22476-1:2012 traite des exigences relatives à l'appareillage, à l'exécution et au compte rendu des essais de pénétration au cône électrique et au piézocône dans le cadre de la reconnaissance, et des essais géotechniques selon l'EN 1997-1 et l'EN 1997-2.
À la dénomination «essai de pénétration au cône électrique et au piézocône» correspondent deux essais distincts:
       l'essai de pénétration au cône électrique (CPT), qui comporte à la fois le mesurage de la résistance au cône et celui du frottement latéral sur le manchon;
       l'essai de pénétration au piézocône (CPTU), qui est un essai de pénétration au cône complété par le mesurage de la pression interstitielle.
L'essai CPTU est réalisé comme un essai CPT avec mesurage de la pression interstitielle en un ou plusieurs emplacements à la surface de la pointe pénétrométrique.
L'ISO 22476-1:2012 spécifie les points suivants:
        le type de l'essai de pénétration au cône, conformément au Tableau 1;
       la classe d'application, conformément au Tableau 2;
       la longueur ou la profondeur de pénétration;
       la cote altimétrique de la surface du sol ou la cote de la surface de la nappe à l'emplacement de l'essai de pénétration au cône par rapport à un repère précisé;
       l'emplacement de l'essai de pénétration au cône par rapport à un point de référence fixe toujours accessible;
        les essais de dissipation de la pression interstitielle.

Geotehnično preiskovanje in preskušanje - Preskušanje na terenu - 1. del: Metoda električnega stožca in piezoconski penetracijski preskus (ISO 22476-1:2012)

Ta del standarda ISO 22476 obravnava zahteve glede opreme, izvajanja metode električnega stožca in piezoconskih penetracijskih preskusov ter poročanja v zvezi z njimi. V okviru metode električnega stožca in piezoconskega penetracijskega preskusa sta obravnavani dve podkategoriji penetracijskih preskusov s stožci: – penetracijski preskus z električnim stožcem (CPT), ki vključuje merjenje odpornosti stožca in trenja obloge; – piezoconski preskus (CPTU), ki je penetracijski preskus s stožcem z dodatnim merjenjem pornega tlaka. CPTU se izvaja kot CPT z merjenjem pornega tlaka na enem ali več mestih na površini penetrometra. Ta del standarda ISO 22476 določa naslednje lastnosti: a) vrsto penetracijskega preskusa s stožcem v skladu s preglednico 1; b) razred uporabe v skladu s preglednico 2; c) dolžino ali globino penetracije; d) nadmorsko višino talne površine ali podvodne talne površine na mestu penetracijskega preskusa s stožcem z referenčno ravnino; e) mesto penetracijskega preskusa s stožcem glede na ponovljivo nepremično referenčno točko mesta; f) preskuse odvajanja pornega tlaka.

General Information

• Status: Withdrawn
• Publication Date: 14-Sep-2012
• Withdrawal Date: 10-Jan-2023
• ICS: 93.020 - Earthworks. Excavations. Foundation construction. Underground works
• Technical Committee: CEN/TC 341 - Geotechnical Investigation and Testing
• Drafting Committee: CEN/TC 341 - Geotechnical Investigation and Testing
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Completion Date: 11-Jan-2023
• Ref Project: SIST EN ISO 22476-1:2013 - Geotechnical investigation and testing - Field testing - Part 1: Electrical cone and piezocone penetration test (ISO 22476-1:2012)

Relations

• Replaced By: EN ISO 22476-1:2023 - Geotechnical investigation and testing - Field testing - Part 1: Electrical cone and piezocone penetration test (ISO 22476-1:2022)
• Effective Date: 16-Jan-2023
• Corrected By: EN ISO 22476-1:2012/AC:2013 - Geotechnical investigation and testing - Field testing - Part 1: Electrical cone and piezocone penetration test - Technical Corrigendum 1 (ISO 22476-1:2012/Cor 1:2013)
• Effective Date: 12-Dec-2012

Standards Content (Sample)

SLOVENSKI STANDARD
01-marec-2013
*HRWHKQLþQRSUHLVNRYDQMHLQSUHVNXãDQMH3UHVNXãDQMHQDWHUHQXGHO0HWRGD
HOHNWULþQHJDVWRåFDLQSLH]RFRQVNLSHQHWUDFLMVNLSUHVNXV,62
Geotechnical investigation and testing - Field testing - Part 1: Electrical cone and
piezocone penetration test (ISO 22476-1:2012)
Geotechnische Erkundung und Untersuchung - Felduntersuchungen - Teil 1:
Drucksondierungen mit elektrischen Messwertaufnehmern und Messeinrichtungen für
den Porenwasserdruck (ISO 22476-1:2012)
Reconnaissance et essais géotechniques - Essais en place - Partie 1: Essai de
pénétration au cône électrique et au piézocône (ISO 22476-1:2012)
Ta slovenski standard je istoveten z: EN ISO 22476-1:2012
ICS:
93.020 Zemeljska dela. Izkopavanja. Earthworks. Excavations.
Gradnja temeljev. Dela pod Foundation construction.
zemljo Underground works
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 22476-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2012
ICS 93.020
English Version
Geotechnical investigation and testing - Field testing - Part 1:
Electrical cone and piezocone penetration test (ISO 22476-
1:2012)
Reconnaissance et essais géotechniques - Essais en place Geotechnische Erkundung und Untersuchung -
- Partie 1: Essai de pénétration au cône électrique et au Felduntersuchungen - Teil 1: Drucksondierungen mit
piézocône (ISO 22476-1:2012) elektrischen Messwertaufnehmern und Messeinrichtungen
für den Porenwasserdruck (ISO 22476-1:2012)
This European Standard was approved by CEN on 14 September 2012.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same
status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2012 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 22476-1:2012: E
worldwide for CEN national Members.

Contents Page
Foreword .3
Foreword
This document (EN ISO 22476-1:2012) has been prepared by Technical Committee CEN/TC 341
“Geotechnical Investigation and Testing", the secretariat of which is held by ELOT, in collaboration with
Technical Committee ISO/TC 182 "Geotechnics".
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by March 2013, and conflicting national standards shall be withdrawn at
the latest by March 2013.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

INTERNATIONAL ISO
STANDARD 22476-1
First edition
2012-09-15
Geotechnical investigation and testing —
Field testing —
Part 1:
Electrical cone and piezocone
penetration test
Reconnaissance et essais géotechniques — Essais en place —
Partie 1: Essais de pénétration au cône électrique et au piézocône

Reference number
ISO 22476-1:2012(E)
©
ISO 2012
ISO 22476-1:2012(E)
©  ISO 2012
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or
ISO's member body in the country of the requester.
ISO copyright office
Case postale 56  CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Published in Switzerland
ii © ISO 2012 – All rights reserved

ISO 22476-1:2012(E)
Contents Page
Foreword . v
Introduction . vi
1  Scope . 1
2  Normative references . 2
3  Terms, definitions and symbols . 2
3.1  Terms and definitions . 2
3.2  Symbols . 9
4  Equipment . 10
4.1  Cone penetrometer . 10
4.2  Tolerances . 10
4.3  Surface roughness . 11
4.4  Cone . 11
4.5  Friction sleeve . 12
4.6  Filter element . 13
4.7  Gaps and soil seals . 15
4.8  Push rods . 15
4.9  Measuring system . 15
4.10  Thrust machine . 16
5  Test procedures . 16
5.1  Selection of cone penetrometer . 16
5.2  Selection of equipment and procedures . 17
5.3  Position and level of thrust machine . 19
5.4  Preparation of the test . 19
5.5  Pushing of the cone penetrometer . 19
5.6  Use of friction reducer . 20
5.7  Frequency of logging parameters . 20
5.8  Registration of penetration length . 20
5.9  Dissipation test . 21
5.10  Test completion . 21
5.11  Equipment checks and calibrations . 21
5.12  Safety requirements . 22
6  Test results . 22
6.1  Measured parameters . 22
6.2  Correction of parameters. 22
6.3  Calculated parameters . 24
7  Reporting . 24
7.1  General . 24
7.2  Reporting of test results . 24
7.3  Presentation of test results . 26
7.4  Presentation of test results and calculated parameters . 26
Annex A (normative) Maintenance, checks and calibration . 28
Annex B (normative) Calculation of penetration depth . 32
Annex C (informative) Correction of sleeve friction for water pressure . 33
Annex D (informative) Preparation of the piezocone . 34
Annex E (informative) Uncertainties in cone penetrometer testing. 35
ISO 22476-1:2012(E)
Bibliography .36

Figures
Figure 1 — Cross section of an example of a cone penetrometer . 3
Figure 2 — Locations of pore pressure filters . 6
Figure 3 — Penetration length and penetration depth (schematic only) . 8
Figure 4 — Tolerance requirements for use of 1000 mm cone penetrometer . 12
Figure 5 — Geometry and tolerances of friction sleeve . 13
Figure 6 — Correction of cone resistance and sleeve friction due to the unequal end area effect . 23
Figure A.1 — Pressure chamber for determination of the net area ratio, a . 30

Tables
Table 1 — Types of cone penetration test . 17
Table 2 — Application classes . 18
Table A.1 — Control scheme for maintenance routines . 29

iv © ISO 2012 – All rights reserved

ISO 22476-1:2012(E)
Foreword
ISO
...