EN ISO 17892-5:2017

Geotechnical investigation and testing - Laboratory testing of soil - Part 5: Incremental loading oedometer test (ISO 17892-5:2017)

ISO 17892-5:2017 specifies methods for the determination of the compressibility characteristics of soils by incremental loading in an oedometer.
ISO 17892-5:2017 is applicable to the laboratory determination of the compression and deformation characteristics of soil within the scope of geotechnical investigations.
The oedometer test is carried out on a cylindrical test specimen that is confined laterally by a rigid ring. The specimen is subjected to discrete increments of vertical axial loading or unloading and is allowed to drain axially from the top and bottom surfaces. Tests may be carried out on undisturbed, remoulded, recompacted or reconstituted specimens.
The stress paths and drainage conditions in foundations are generally three dimensional and differences can occur in the calculated values of both the magnitude and the rate of settlement.
The small size of the specimen generally does not adequately represent the fabric features present in natural soils.
Analysis of consolidation tests is generally based on the assumption that the soil is saturated. In case of unsaturated soils, some of the derived parameters may not be appropriate
NOTE          This document fulfils the requirements of the determination of the compressibility characteristics of soils in the oedometer for geotechnical investigation and testing in accordance with EN 1997?1 and EN 1997?2.

Geotechnische Erkundung und Untersuchung - Laborversuche an Bodenproben - Teil 5: Oedometerversuch mit stufenweiser Belastung (ISO 17892-5:2017)

Reconnaissance et essais géotechniques - Essais de laboratoire sur les sols - Partie 5: Essai de chargement par palier à l'oedomètre (ISO 17892-5:2017)

La présente Norme internationale spécifie des méthodes de détermination des caractéristiques de compressibilité des sols par essai à l'œdomètre sur sol saturé.
La présente Norme internationale est applicable à la détermination en laboratoire des caractéristiques de compression et de déformation du sol dans le domaine d'application de la reconnaissance géotechnique.
L'essai à l'œdomètre est réalisé sur une éprouvette d'essai cylindrique confinée latéralement par un anneau rigide. L'éprouvette est soumise à un chargement ou déchargement vertical et axial par paliers, tout en étant drainée axialement par le haut et par le bas. Les essais peuvent être réalisés sur des éprouvettes de sol non remanié ou remanié.
Les chemins de contraintes et les conditions de drainage sous des fondations sont généralement tridimensionnels, et des différences peuvent apparaître au niveau des valeurs calculées pour le tassement ou pour sa vitesse.
La petite dimension de l'éprouvette ne permet généralement pas de représenter correctement les hétérogénéités présentes dans les sols naturels.
L'analyse d'un essai de consolidation repose généralement sur l'hypothèse que le sol est saturé. Dans le cas de sols non saturés, certains paramètres déduits de l'essai peuvent ne pas être corrects.
NOTE       Le présent document satisfait aux exigences de détermination des caractéristiques de compressibilité des sols par essai à l'œdomètre pour la reconnaissance et les essais géotechniques conformément à l'EN 1997‑1 et à l'EN 1997‑2.

Geotehnično preiskovanje in preskušanje - Laboratorijsko preskušanje zemljin - 5. del: Edometrski preskus s postopnim obremenjevanjem (ISO 17892-5:2017)

Ta dokument je namenjen določanju lastnosti stiskanja, nabrekanja in konsolidacije zemljin. Cilindrični preskusni vzorec je bočno zaprt, podvržen diskretnim intervalom z navpičnim osnim obremenjevanjem ali razbremenjevanjem, pri čemer je dovoljena drenaža vzdolž osi z zgornje in s spodnje površine.
Glavni parametri, ki so pridobljeni z edometrskim preskusom, se nanašajo na stisljivost in stopnjo primarne konsolidacije zemljin. Včasih je mogoče pridobiti tudi ocene predkonsolidacijskega tlaka, stopnje sekundarnega stiskanja in značilnosti nabrekanja.

General Information

• Status: Published
• Publication Date: 21-Mar-2017
• Withdrawal Date: 29-Sep-2017
• ICS: 13.080.20 - Physical properties of soils
• 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: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 22-Mar-2017
• Due Date: 13-Sep-2017
• Completion Date: 22-Mar-2017
• Ref Project: SIST EN ISO 17892-5:2017 - Geotechnical investigation and testing - Laboratory testing of soil - Part 5: Incremental loading oedometer test (ISO 17892-5:2017)

Relations

• Replaces: CEN ISO/TS 17892-5:2004 - Geotechnical investigation and testing - Laboratory testing of soil - Part 5: Incremental loading oedometer test (ISO/TS 17892-5:2004)
• Effective Date: 08-Jun-2022
• Replaces: CEN ISO/TS 17892-5:2004/AC:2005 - Geotechnical investigation and testing - Laboratory testing of soil - Part 5: Incremental loading oedometer test (ISO/TS 17892-5:2004)
• Effective Date: 29-Mar-2017

Standards Content (Sample)

SLOVENSKI STANDARD
01-september-2017
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SIST-TS CEN ISO/TS 17892-5:2004
SIST-TS CEN ISO/TS 17892-5:2004/AC:2010
*HRWHKQLþQRSUHLVNRYDQMHLQSUHVNXãDQMH/DERUDWRULMVNRSUHVNXãDQMH]HPOMLQ
GHO(GRPHWUVNLSUHVNXVVSRVWRSQLPREUHPHQMHYDQMHP,62
Geotechnical investigation and testing - Laboratory testing of soil - Part 5: Incremental
loading oedometer test (ISO 17892-5:2017)
Geotechnische Erkundung und Untersuchung - Laborversuche an Bodenproben - Teil 5:
Oedometerversuch mit stufenweiser Belastung (ISO 17892-5:2017)
Reconnaissance et essais géotechniques - Essais de laboratoire sur les sols - Partie 5:
Essai de chargement par palier à l'oedomètre sur sol saturé (ISO 17892-5:2017)
Ta slovenski standard je istoveten z: EN ISO 17892-5:2017
ICS:
13.080.20 Fizikalne lastnosti tal Physical properties of soils
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 17892-5
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2017
EUROPÄISCHE NORM
ICS 93.020; 13.080.20 Supersedes CEN ISO/TS 17892-5:2004
English Version
Geotechnical investigation and testing - Laboratory testing
of soil - Part 5: Incremental loading oedometer test (ISO
17892-5:2017)
Reconnaissance et essais géotechniques - Essais de Geotechnische Erkundung und Untersuchung -
laboratoire sur les sols - Partie 5: Essai de chargement Laborversuche an Bodenproben - Teil 5:
par palier à l'oedométre (ISO 17892-5:2017) Oedometerversuch mit stufenweiser Belastung (ISO
17892-5:2017)
This European Standard was approved by CEN on 3 February 2017.

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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 17892-5:2017 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
European foreword
This document (EN ISO 17892-5:2017) has been prepared by Technical Committee CEN/TC 341
“Geotechnical Investigation and Testing”, the secretariat of which is held by BSI, 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 September 2017, and conflicting national standards
shall be withdrawn at the latest by September 2017.
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.
This document supersedes CEN ISO/TS 17892-5:2004.
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, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 17892-5:2017 has been approved by CEN as EN ISO 17892-5:2017 without any
modification.
INTERNATIONAL ISO
STANDARD 17892-5
First edition
2017-02
Geotechnical investigation and
testing — Laboratory testing of soil —
Part 5:
Incremental loading oedometer test
Reconnaissance et essais géotechniques — Essais de laboratoire sur
les sols —
Partie 5: Essai de chargement par palier à l’oedométre
Reference number
ISO 17892-5:2017(E)
©
ISO 2017
ISO 17892-5:2017(E)
© ISO 2017, Published in Switzerland
All rights reserved. Unless otherwise specified, 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.
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ii © ISO 2017 – All rights reserved

ISO 17892-5:2017(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols . 2
5 Equipment . 3
6 Test procedure . 6
6.1 General . 6
6.2 Specimen preparation . 6
6.2.1 Selection of preparation method . 6
6.2.2 Trimming from extruded or block sample . 6
6.2.3 Extrusion from tube of diameter larger than the oedometer ring . 7
6.2.4 Recompacted specimens . 7
6.3 Measurement . 7
6.4 Preparation of apparatus . 7
6.4.1 Assembly of cell . 7
6.4.2 Assembly in load frame . 8
6.5 Loading . 8
6.5.1 Loading sequence . . 8
6.5.2 Application of loads . 9
6.6 Dismantling . 9
7 Test results .10
7.1 General .10
7.2 Initial values .10
7.2.1 General.10
7.2.2 Initial water content .10
7.2.3 Initial bulk and dry density .10
7.3 Compressibility characteristics .10
7.3.1 General.10
7.3.2 Specimen height .10
7.3.3 Vertical strain .11
7.3.4 Void ratio .11
7.3.5 Compression-stress diagram.12
8 Test report .12
8.1 Mandatory reporting .12
8.2 Optional reporting .13
Annex A (normative) Calibration, maintenance and checks .14
Annex B (informative) Additional calculations .17
Bibliography .26
ISO 17892-5:2017(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 es
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