EN ISO 17892-8:2018
(Main)Geotechnical investigation and testing - Laboratory testing of soil - Part 8: Unconsolidated undrained triaxial test (ISO 17892-8:2018)
Geotechnical investigation and testing - Laboratory testing of soil - Part 8: Unconsolidated undrained triaxial test (ISO 17892-8:2018)
ISO 17892-8:2018 specifies a method for unconsolidated undrained triaxial compression tests.
ISO 17892-8:2018 is applicable to the laboratory determination of undrained triaxial shear strength under compression loading within the scope of geotechnical investigations.
The cylindrical specimen, which can comprise undisturbed, re-compacted, remoulded or reconstituted soil, is subjected to an isotropic stress under undrained conditions and thereafter is sheared under undrained conditions. The test allows the determination of shear strength and stress-strain relationships in terms of total stresses.
Non-standard procedures such as tests with the measurement of pore pressure or tests with filter drains are not covered in this document.
NOTE This document fulfils the requirements of unconsolidated undrained triaxial compression tests for geotechnical investigation and testing in accordance with EN 1997‑1 and EN 1997‑2.
Geotechnische Erkundung und Untersuchung - Laborversuche an Bodenproben - Teil 8: Unkonsolidierter undränierter Triaxialversuch (ISO 17892-8:2018)
Dieses Dokument legt ein Verfahren für den unkonsolidierten undränierten Triaxialversuch fest.
Dieses Dokument gilt für die Bestimmung der undränierten triaxialen Scherfestigkeit unter Verformung innerhalb des Anwendungsbereichs geotechnischer Untersuchungen im Labor.
Der zylindrische Probekörper, der ungestörten, verfestigten, gestörten oder wiederaufbereiteten Boden enthalten kann, wird einer isotropen Spannung unter undränierten Bedingungen ausgesetzt und wird anschließend unter undränierten Bedingungen abgeschert. Die Prüfung ermöglicht die Bestimmung der Scherfestigkeit und der Spannungs-Dehnungs-Beziehungen in Bezug auf die Total¬spannung.
Nicht genormte Verfahren wie Prüfungen mit Messungen von Porenwasserdruck oder Prüfungen mit Filterdrainagen werden von diesem Dokument nicht abgedeckt.
ANMERKUNG Dieses Dokument erfüllt die Anforderungen an unkonsolidierte Triaxialversuche für geotechnische Erkundung und Untersuchung nach EN 1997 1 und EN 1997 2.
Reconnaissance et essais géotechniques - Essais de laboratoire sur les sols - Partie 8: Essai triaxial non consolidé non drainé (ISO 17892-8:2018)
La présente Norme internationale spécifie une méthode pour les essais à l'appareil triaxial de révolution en compression sur sols non drainés non consolidés.
Cette Norme internationale s'applique à la détermination en laboratoire de la résistance triaxiale au cisaillement de sols non drainés en conditions de chargement par compression dans le cadre d'investigations géotechniques.
L'éprouvette cylindrique, pouvant être constituée de sol non remanié, recompacté, remanié ou reconstitué, est soumise à une contrainte isotrope sans drainage et est ensuite cisaillée sans drainage. L'essai permet de déterminer la résistance au cisaillement et les relations contrainte-déformation en termes de contraintes totales.
Les procédures non standard, notamment les essais avec une mesure de la pression interstitielle ou les essais avec filtres drainants, ne sont pas couvertes par le présent document.
NOTE Ce document satisfait aux exigences relatives aux essais en compression à l'appareil triaxial sur sols non consolidés et non drainés à des fins d'investigation et d'essais géotechniques conformément aux normes EN 1997‑1 et EN 1997‑2.
Geotehnično preiskovanje in preskušanje - Laboratorijsko preskušanje zemljin - 8. del: Nekonsolidirani nedrenirani triosni preskus (ISO 17892-8:2018)
Ta dokument določa metodo za nekonsolidirane, nedrenirane preskuse s triosnim stiskanjem.
Ta dokument se uporablja za laboratorijsko določevanje nedrenirane triosne strižne trdnosti pod tlačno obremenitvijo, ki spada na področje uporabe geotehničnega preiskovanja.
Valjast primerek, ki je lahko sestavljen iz neporušene, ponovno zgoščene, pregnetene ali obdelane
zemljine, je izpostavljen izotropni napetosti pod nedreniranimi pogoji in se nato striže pod nedreniranimi pogoji. Preskus omogoča določevanje strižne trdnosti in razmerij napetost–deformacija v smislu skupnih napetosti.
Nestandardni postopki, kot so preskusi z merjenjem pornega tlaka ali preskusi z odtoki filtra, v tem dokumentu niso zajeti.
OPOMBA: Ta dokument izpolnjuje zahteve za nekonsolidirane, nedrenirane preskuse s triosnim stiskanjem za geotehnično preiskovanje in preskušanje v skladu s standardoma EN 1997-1 in EN 1997-2.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-junij-2018
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SIST-TS CEN ISO/TS 17892-8:2004
SIST-TS CEN ISO/TS 17892-8:2004/AC:2010
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Geotechnical investigation and testing - Laboratory testing of soil - Part 8:
Unconsolidated undrained triaxial test (ISO 17892-8:2018)
Geotechnische Erkundung und Untersuchung - Laborversuche an Bodenproben - Teil 8:
Unkonsolidierter undränierter Triaxialversuch (ISO 17892-8:2018)
Reconnaissance et essais géotechniques - Essais de laboratoire sur les sols - Partie 8:
Essai triaxial non consolidé non drainé (ISO 17892-8:2018)
Ta slovenski standard je istoveten z: EN ISO 17892-8:2018
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 17892-8
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2018
EUROPÄISCHE NORM
ICS 13.080.20; 93.020 Supersedes CEN ISO/TS 17892-8:2004
English Version
Geotechnical investigation and testing - Laboratory testing
of soil - Part 8: Unconsolidated undrained triaxial test (ISO
17892-8:2018)
Reconnaissance et essais géotechniques - Essais de Geotechnische Erkundung und Untersuchung -
laboratoire sur les sols - Partie 8: Essai triaxial non Laborversuche an Bodenproben - Teil 8:
consolidé non drainé (ISO 17892-8:2018) Unkonsolidierter undränierter Triaxialversuch (ISO
17892-8:2018)
This European Standard was approved by CEN on 18 January 2018.
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: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 17892-8:2018 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 17892-8:2018) 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 September 2018, and conflicting national standards
shall be withdrawn at the latest by September 2018.
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 CEN ISO/TS 17892-8:2004.
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 17892-8:2018 has been approved by CEN as EN ISO 17892-8:2018 without any
modification.
INTERNATIONAL ISO
STANDARD 17892-8
First edition
2018-02
Geotechnical investigation and
testing — Laboratory testing of soil —
Part 8:
Unconsolidated undrained triaxial test
Reconnaissance et essais géotechniques — Essais de laboratoire sur
les sols —
Partie 8: Essai triaxial non consolidé non drainé
Reference number
ISO 17892-8:2018(E)
©
ISO 2018
ISO 17892-8:2018(E)
© ISO 2018
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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ii © ISO 2018 – All rights reserved
ISO 17892-8:2018(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols . 2
5 Apparatus . 3
6 Test procedure . 6
6.1 General requirements and equipment preparation . 6
6.2 Preparation of specimens . 6
6.3 Application of cell pressure and initial readings . 7
6.4 Shearing . 8
6.5 Dismounting . 8
7 Test results . 9
7.1 Bulk density, dry density and water content . 9
7.2 Stage prior to shearing . 9
7.3 Shearing . 9
7.3.1 Corrected cross-sectional area . 9
7.3.2 Deviator stress . 9
7.3.3 Vertical strain .10
7.3.4 Undrained shear strength .10
7.4 Correction for elastic membrane .10
8 Test report .10
8.1 Mandatory reporting .10
8.2 Optional reporting .11
Annex A (normative) Calibration, maintenance and checks .12
Bibliography .14
ISO 17892-8:2018(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
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ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following
URL: www .iso .org/ iso/ foreword .html.
This document was prepared by the European Committee for Standardization (CEN) Technical
Committee CEN/TC 341, Geotechnical investigation and testing, in collaboration with ISO Technical
Committee TC 182, Geotechnics, in accordance with the Agreement on technical cooperation between
ISO and CEN (Vienna Agreement).
This first edition of ISO 17892-8 cancels and replaces ISO/TS 17892-8:2004 and ISO/TS 17892-
8:2004/Cor.1:2006.
A list of all the parts in the ISO 17892 series can be found on the ISO website.
iv © ISO 2018 – All rights reserved
ISO 17892-8:2018(E)
Introduction
This document covers areas in the international field of geotechnical engineering never previously
standardized. It is intended that this document presents br
...
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