EN ISO 22476-3:2005/A1:2011
(Amendment)Geotechnical investigation and testing - Field testing - Part 3: Standard penetration test - Amendment 1 (ISO 22476-3:2005/Amd 1:2011)
Geotechnical investigation and testing - Field testing - Part 3: Standard penetration test - Amendment 1 (ISO 22476-3:2005/Amd 1:2011)
2011-04-12 EMA: VA info and procedure updated following confirmation from ISO/TC.
2011-02-23 EMA: // final draft received in ISO/CS (see notification from 2011-02-22 in dataservice).
Geotechnische Erkundung und Untersuchung - Felduntersuchungen - Teil 3: Standard Penetration Test - Änderung 1 (ISO 22476-3:2005/Amd 1:2011)
Reconnaissance et essais géotechniques - Essais en place - Partie 3: Essai de pénétration au carottier - Amendement 1 (ISO 22476-3:2005/Amd 1:2011)
Geotehnično preiskovanje in preskušanje - Preskušanje na terenu - 3. del: Standardni penetracijski preskus - Dopolnilo 1 (ISO 22476-3:2005/Amd1:2011)
Ta dokument določa zahteve za posredno preiskovanje prsti s standardnim penetracijskim poskusom kot delom storitev geotehničnega preiskovanja v skladu s standardoma prEN 1997-1 in prEN 1997-2 za dopolnitev neposrednega preiskovanja (npr. vzorčenja v skladu s prEN ISO 22475-1). Standardni penetracijski preskus je namenjen za določevanje odpornosti prsti na dnu vrtine na dinamično penetracijo z dvodelnim votlim vzorčevalnikom in zbiranje porušenih vzorcev za namene identifikacije (SPT). Za gramozne prsti in mehke kamnine se lahko uporabi tudi polni konus (SPT(C)). Standardni penetracijski preskus se večinoma uporablja za oceno trdnostnih in deformacijskih parametrov nekohezivnih prsti, vendar omogoča pridobivanje nekaterih pomembnih podatkov tudi v drugih tipih prsti. Osnova testa je zabitje vzorčevalnika v tla s spuščanjem kladiva z maso 63,5 kg na nakovalo ali glavo z višine 760 mm. Število udarcev (N), potrebnih za penetracijo vzorčevalnika do globine 300 mm (brez penetracije zaradi gravitacije in namestitvenega udarca) je penetracijski odpor.
General Information
- Status
- Published
- Publication Date
- 14-Nov-2011
- Withdrawal Date
- 30-May-2012
- Technical Committee
- CEN/TC 341 - Geotechnical Investigation and Testing
- Drafting Committee
- CEN/TC 341 - Geotechnical Investigation and Testing
- Current Stage
- 6060 - Definitive text made available (DAV) - Publishing
- Start Date
- 15-Nov-2011
- Due Date
- 20-Jun-2012
- Completion Date
- 15-Nov-2011
Relations
- Effective Date
- 28-Jan-2026
- Effective Date
- 13-Sep-2010
Overview
EN ISO 22476-3:2005/A1:2011 is an important international standard published by CEN that provides updated amendments to the standard penetration test (SPT) procedures used in geotechnical site investigations. This amendment complements the original ISO 22476-3:2005 and enhances the guidelines for equipment specifications, execution, and reporting of the SPT to align with current best practices in geotechnical investigation.
The update was released in November 2011 and applies to testing conducted across Europe and internationally, ensuring harmonized procedures for soil resistance measurement and foundation design. It supports direct investigations and complies with standards such as EN 1997-1 and EN 1997-2 concerning geotechnical design.
Key Topics
Standard Penetration Test Equipment Requirements
Specifies rod stiffness standards based on depth (AW rods for <20 m depth and BW rods for deeper tests). Emphasizes the necessity of rod straightness checks through rotation, rolling, or using a hollow tube to maintain test accuracy.Test Execution Procedures
Details procedures for the seating drive and test drive including increment sizes (150 mm or 75 mm) and blow counts. Introduces clarifications on driving increments and the number of blows required to penetrate soil layers effectively.Reporting and Interpretation
Requires reportage of raw results such as seating drive penetration (N₀) and test drive blows (N) without automatic corrections. Encourages consideration of potential adjustments in later interpretation stages while maintaining standardized data recording.Use of Stabilizers
Recommends vertical alignment of rod strings using stabilizers in deeper boreholes or larger diameters, with the type and quantity of stabilizers to be documented in reports, enhancing test reliability.Calibration and Maintenance
Stresses regular annual calibration checks of driving equipment and mandatory checks following equipment repairs or modifications to uphold data quality.Normative References
Updates references to ISO 22475-1:2006 for sampling methods and groundwater measurement, reinforcing consistency across geotechnical investigation documents.
Applications
EN ISO 22476-3:2005/A1:2011 is critical for professionals conducting geotechnical investigations involving soil profiling and foundation design. Practical applications include:
Foundation Engineering
Facilitates accurate soil resistance measurement critical in safe foundation sizing and selection, reducing risks in construction projects.Site Characterization
Enables consistent field testing methods for determining subsurface conditions, soil layering, and bearing capacity, supporting thorough risk assessments.Underground Works and Earthworks
Provides reliable data for tunneling, excavation, and earthwork projects by standardizing field penetration testing approaches.Quality Control in Testing
Enhances the reliability of field data by specifying equipment conditions, alignment, and calibration requirements, improving confidence in geotechnical reports.Design Compliance
Ensures compliance with European and international geotechnical design requirements, streamlining regulatory approvals and harmonizing engineering standards internationally.
Related Standards
To achieve comprehensive geotechnical site investigation and testing, EN ISO 22476-3:2005/A1:2011 should be used alongside:
ISO 22475-1:2006 – Geotechnical investigation and testing - Sampling methods and groundwater measurements - Part 1: Technical principles for execution. This standard complements SPT by defining sampling techniques and groundwater assessment.
EN 1997-1 and EN 1997-2 – European standards detailing geotechnical design principles and ground investigation requirements, with which this amendment fully complies.
ISO 22476 Series (other parts) – Covers various field testing techniques such as cone penetration testing (CPT), allowing integrated site characterization strategies.
By adhering to EN ISO 22476-3:2005/A1:2011, engineers and geotechnical professionals ensure standardized, reliable, and internationally recognized testing results, crucial for safe and effective foundation and underground construction projects.
Keywords: Standard Penetration Test, EN ISO 22476-3 Amendment, geotechnical investigation, field testing, soil testing standards, SPT procedure, foundation design standards, geotechnical equipment specifications, rod stiffness, test execution, test reporting, stabilizers in soil testing, borehole alignment, ISO 22475-1, calibration requirements, European geotechnical standards.
Frequently Asked Questions
EN ISO 22476-3:2005/A1:2011 is a amendment published by the European Committee for Standardization (CEN). Its full title is "Geotechnical investigation and testing - Field testing - Part 3: Standard penetration test - Amendment 1 (ISO 22476-3:2005/Amd 1:2011)". This standard covers: 2011-04-12 EMA: VA info and procedure updated following confirmation from ISO/TC. 2011-02-23 EMA: // final draft received in ISO/CS (see notification from 2011-02-22 in dataservice).
2011-04-12 EMA: VA info and procedure updated following confirmation from ISO/TC. 2011-02-23 EMA: // final draft received in ISO/CS (see notification from 2011-02-22 in dataservice).
EN ISO 22476-3:2005/A1:2011 is classified under the following ICS (International Classification for Standards) categories: 93.020 - Earthworks. Excavations. Foundation construction. Underground works. The ICS classification helps identify the subject area and facilitates finding related standards.
EN ISO 22476-3:2005/A1:2011 has the following relationships with other standards: It is inter standard links to EN 16907-7:2021, EN ISO 22476-3:2005. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN ISO 22476-3:2005/A1:2011 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
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Geotechnical investigation and testing - Field testing - Part 3: Standard penetration test -
Amendment 1 (ISO 22476-3:2005/Amd 1:2011)
Geotechnische Erkundung und Untersuchung - Felduntersuchungen - Teil 3: Standard
Penetration Test - Änderung 1 (ISO 22476-3:2005/Amd 1:2011)
Reconnaissance et essais géotechniques - Essais en place - Partie 3: Essai de
pénétration au carottier - Amendement 1 (ISO 22476-3:2005/Amd 1:2011)
Ta slovenski standard je istoveten z: EN ISO 22476-3:2005/A1:2011
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 22476-3:2005/A1
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2011
ICS 93.020
English Version
Geotechnical investigation and testing - Field testing - Part 3:
Standard penetration test - Amendment 1 (ISO 22476-
3:2005/Amd 1:2011)
Reconnaissance et essais géotechniques - Essais en place Geotechnische Erkundung und Untersuchung -
- Partie 3: Essai de pénétration au carottier - Amendement Felduntersuchungen - Teil 3: Standard Penetration Test -
1 (ISO 22476-3:2005/Amd 1:2011) Änderung 1 (ISO 22476-3:2005/Amd 1:2011)
This amendment A1 modifies the European Standard EN ISO 22476-3:2005; it was approved by CEN on 14 November 2011.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of this
amendment into the relevant 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 amendment 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2011 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 22476-3:2005/A1:2011: E
worldwide for CEN national Members.
Contents Page
Foreword .3
Foreword
This document (EN ISO 22476-3:2005/A1:2011) 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 May 2012, and conflicting national standards shall be withdrawn at the
latest by May 2012.
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 organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
INTERNATIONAL ISO
STANDARD 22476-3
First edition
2005-01-15
AMENDMENT 1
2011-11-15
Geotechnical investigation and testing —
Field testing —
Part 3:
Standard penetration test
AMENDMENT 1
Reconnaissance et essais géotechniques — Essais en place —
Partie 3: Essai de pénétration au carottier
AMENDEMENT 1
Reference number
ISO 22476-3:2005/Amd.1:2011(E)
©
ISO 2011
ISO 22476-3:2005/Amd.1:2011(E)
© ISO 2011
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ii © ISO 2011 – All rights reserved
ISO 22476-3:2005/Amd.1:2011(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-govern
...
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