EN ISO 22476-5:2023

Geotechnical investigation and testing - Field testing - Part 5: Prebored pressuremeter test (ISO 22476-5:2023)

This document is applicable to pressuremeter tests using cylindrical flexible probes placed in pre-existent boreholes using testing procedures other than the Menard procedure.
Pressuremeter tests following the Menard procedure are provided in ISO 22476-4.
NOTE          A high-pressure flexible pressuremeter probe which contains transducers for the measurement of radial displacements is also known as flexible dilatometer probe or high-pressure dilatometer probe.
This document applies to tests performed in any kind of grounds, starting from soils, treated or untreated fills, hard soils and soft rocks, up to hard and very hard rocks, either on land or offshore.
The parameters derived from this test can include stiffness, strength, initial in-situ stress state and consolidation properties.

Geotechnische Erkundung und Untersuchung - Felduntersuchungen - Teil 5: Pressiometerversuch in Vorbohrungen (ISO 22476‑5:2023)

Dieses Dokument gilt für Pressiometerversuche mit zylindrischen, flexiblen Sonden, die in bereits vorhandene Bohrlöcher eingesetzt werden und andere Versuchsverfahren als das Menard-Verfahren anwenden.
Pressiometerversuche nach dem Ménard-Verfahren sind in ISO 22476 4 beschrieben.
ANMERKUNG   Eine flexible Hochdruck-Pressiometer-Sonde, die Aufnehmer für die Messung von radialen Aufweitungen enthält, wird auch als flexible Dilatometer-Sonde oder Hochdruck-Dilatometer-Sonde bezeichnet.
Dieses Dokument gilt für Versuche, die in jeder Art von Baugrund durchgeführt werden, angefangen bei Böden, behandelten oder unbehandelten Aufschüttungen, festen Böden und weichem Gestein bis hin zu festem und sehr festem Gestein, entweder an Land oder vor der Küste.
Die aus diesem Versuch abgeleiteten Parameter können die Steifigkeit, die Festigkeit, den anfänglichen Spannungszustand in situ und die Festigungseigenschaften umfassen.

Reconnaissance et essais géotechniques - Essais en place - Partie 5: Essai au pressiomètre en préforage (ISO 22476-5:2023)

Ce document s’applique aux essais au pressiomètre utilisant des sondes flexibles cylindriques placées dans des trous de forage pré-existants, réalisés selon des procédures autres que la procédure Ménard.
Les essais au pressiomètre selon la procédure Ménard sont disponibles dans l’ISO 22476-4.
NOTE            Une sonde pressiométrique flexible haute pression qui comporte des capteurs destinés à la mesure des déplacements radiaux est également appelée dilatomètre flexible ou dilatomètre haute pression.
Ce document s’applique aux essais réalisés dans tout type de terrain, depuis des sols, des remblais traités ou non traités, des sols durs et des roches tendres, jusqu’à des roches dures et très dures, à terre ou en mer.
Les paramètres déduits de cet essai peuvent inclure le module, la résistance, l’état de contrainte in situ initial et des propriétés de consolidation.

Geotehnično preiskovanje in preskušanje - Preskušanje na terenu - 5. del: Preskus v vrtini s presiometrom (ISO 22476-5:2023)

Ta dokument se uporablja za preskuse s presiometrom, pri katerih se v obstoječe vrtine namestijo cilindrične prožne preskuševalne glave in pri katerih se uporabljajo postopki, drugačni od Ménardovega postopka.
Preskusi s presiometrom po Ménardovem postopku so podani v standardu ISO 22476-4.
OPOMBA:          prožna visokotlačna preskuševalna glava presiometra, ki vključuje pretvornik za merjenje radialnih odmikov, je znana tudi kot prožna dilatometrska preskuševalna glava ali visokotlačna dilatometrska preskuševalna glava.
Ta dokument se uporablja za preskuse, ki se izvajajo na vseh vrstah tal, kar vključuje vse od zemljin, obdelanih ali neobdelanih polnil, trdih zemljin in mehkih skal do trdih in zelo trdih skal, in sicer na kopnem ali morju.
Parametri, pridobljeni s tem preskusom, lahko vključujejo togost, trdnost, prvotno stanje obremenjenosti in-situ ter lastnosti, povezane s konsolidacijo.

General Information

• Status: Published
• Publication Date: 11-Apr-2023
• ICS: 93.020 - Earthworks. Excavations. Foundation construction. Underground works
• Technical Committee: CEN/TC 341 - Geotechnical Investigation and Testing
• Drafting Committee: CEN/TC 341/WG 5 - Borehole expansion tests
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 12-Apr-2023
• Completion Date: 12-Apr-2023
• Ref Project: SIST EN ISO 22476-5:2023 - Geotechnical investigation and testing - Field testing - Part 5: Prebored pressuremeter test (ISO 22476-5:2023)

Relations

• Replaces: EN ISO 22476-5:2012 - Geotechnical investigation and testing - Field testing - Part 5: Flexible dilatometer test (ISO 22476-5:2012)
• Effective Date: 18-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-september-2023
Nadomešča:
SIST EN ISO 22476-5:2013
Geotehnično preiskovanje in preskušanje - Preskušanje na terenu - 5. del: Preskus
v vrtini s presiometrom (ISO 22476-5:2023)
Geotechnical investigation and testing - Field testing - Part 5: Prebored pressuremeter
test (ISO 22476-5:2023)
Geotechnische Erkundung und Untersuchung - Felduntersuchungen - Teil 5:
Vorgebohrter Pressiometerversuch (ISO 22476-5:2023)
Reconnaissance et essais géotechniques - Essais en place - Partie 5: Essai au
pressiomètre en préforage (ISO 22476-5:2023)
Ta slovenski standard je istoveten z: EN ISO 22476-5:2023
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.

EN ISO 22476-5
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2023
EUROPÄISCHE NORM
ICS 93.020 Supersedes EN ISO 22476-5:2012
English Version
Geotechnical investigation and testing - Field testing - Part
5: Prebored pressuremeter test (ISO 22476-5:2023)
Reconnaissance et essais géotechniques - Essais en Geotechnische Erkundung und Untersuchung -
place - Partie 5: Essai au pressiomètre en préforage Felduntersuchungen - Teil 5: Vorgebohrter
(ISO 22476-5:2023) Pressiometerversuch (ISO 22476-5:2023)
This European Standard was approved by CEN on 16 March 2023.

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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 22476-5:2023 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 22476-5:2023) has been prepared by Technical Committee ISO/TC 182
"Geotechnics" in collaboration with Technical Committee CEN/TC 341 “Geotechnical Investigation and
Testing” the secretariat of which is held by BSI.
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 October 2023, and conflicting national standards shall
be withdrawn at the latest by October 2023.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 22476-5:2012.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
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, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 22476-5:2023 has been approved by CEN as EN ISO 22476-5:2023 without any
modification.
INTERNATIONAL ISO
STANDARD 22476-5
Second edition
2023-03
Geotechnical investigation and
testing — Field testing —
Part 5:
Prebored pressuremeter test
Reconnaissance et essais géotechniques — Essais en place —
Partie 5: Essai au pressiomètre en préforage
Reference number
ISO 22476-5:2023(E)
ISO 22476-5:2023(E)
© ISO 2023
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
ISO 22476-5:2023(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and symbols . 1
3.1 Terms and definitions . 1
3.2 Symbols and abbreviations . 5
4 Equipment . 6
4.1 General . 6
4.2 Pressuremeter probe . 10
4.3 Connecting lines . 10
4.4 Control unit (CU) . 10
4.5 Measurement and control accuracy . 11
4.5.1 Time . 11
4.5.2 Pressure and expansion . . 11
4.5.3 Display of readings . 11
4.5.4 Expansion calibration cylinder . 11
5 Test procedures .11
5.1 Assembly of parts. 11
5.2 Calibration of the testing device and corrections of readings .12
5.3 Pressuremeter test pocket and probe placing .12
5.4 Test execution . .12
5.4.1 Test loading programmes .12
5.4.2 Reference loading programmes . 13
5.4.3 Readings and recordings before and during the test .13
5.5 End of test . 14
5.6 Backfilling of borehole . 14
5.7 Safety requirements . 14
6 Test results . .14
6.1 General . 14
6.2 Corrected pressure, radial displacement and volume . 15
6.3 Apparent pressuremeter moduli . 15
6.4 Results . . 16
6.4.1 Determination of moduli . 16
6.4.2 Reference loading programme A . 16
6.4.3 Reference loading programme B. 17
6.4.4 Reference loading programme C . 18
7 Reporting .19
7.1 General . 19
7.2 Contents . 19
7.3 Presentation of test results . 21
Annex A (normative) Calibration and corrections .22
Annex B (informative) Performing the test .30
Annex C (normative) Accuracy and uncertainties .36
Bibliography .37
iii
SIST E
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