EN ISO 22476-11:2017
(Main)Geotechnical investigation and testing - Field testing - Part 11: Flat dilatometer test (ISO 22476-11:2017)
Geotechnical investigation and testing - Field testing - Part 11: Flat dilatometer test (ISO 22476-11:2017)
ISO 22476-11:2017 establishes guidelines for the equipment requirements, execution of and reporting on flat dilatometer tests.
NOTE This document fulfils the requirements for flat dilatometer tests as part of the geotechnical investigation and testing according to EN 1997‑1 and EN 1997‑2.
The basic flat dilatometer test consists of inserting vertically into the soil a blade-shaped steel probe with a thin expandable circular steel membrane mounted flush on one face and determining two pressures at selected depth intervals: the contact pressure exerted by the soil against the membrane when the membrane is flush with the blade and, subsequently, the pressure exerted when the central displacement of the membrane reaches 1,10 mm.
Results of flat dilatometer tests are used mostly to obtain information on soil stratigraphy, in situ state of stress, deformation properties and shear strength. It is also used to detect slip surfaces in clays. The flat dilatometer test is most applicable to clays, silts and sands, where particles are small compared to the size of the membrane.
Geotechnische Erkundung und Untersuchung - Felduntersuchungen - Teil 11: Flachdilatometerversuch (ISO 22476-11:2017)
Dieses Dokument legt die Geräteanforderungen sowie die Durchführung von Flachdilatometerversuchen und die Erstellung entsprechender Berichte fest.
ANMERKUNG Dieses Dokument erfüllt die Anforderungen für Flachdilatometerversuche im Rahmen der geotechnischen Erkundung und Untersuchung nach EN 1997 1 und EN 1997 2.
Der grundlegende Flachdilatometerversuch besteht darin, eine klingenförmige Stahlsonde mit einer dünnen dehnbaren kreisförmigen Stahlmembran, die auf einer Außenseite glatt anliegend angebracht ist, vertikal in den Boden einzubringen; dabei werden in ausgewählten Tiefen zwei Druckwerte bestimmt: der Kontaktdruck des Bodens gegen die glatt an der Klinge anliegende Membran und anschließend der aufgebrachte Druck, wenn die Verformung im Mittelpunkt der Membran 1,10 mm erreicht.
Der Hauptverwendungszweck der Ergebnisse von Flachdilatometerversuchen besteht in der Ermittlung von Angaben zum Schichtenaufbau des Bodens, zum In-situ-Spannungszustand, zu Verformungseigenschaften und zur Scherfestigkeit. Sie werden auch zur Erkennung von Rutschflächen in Tonen verwendet. Der Flachdilatometerversuch ist am besten geeignet für Tone, Schluffe und Sande, wenn die Körnung im Vergleich zu den Maßen der Membran klein ist.
Reconnaissance et essais géotechniques - Essais en place - Partie 11: Essai au dilatomètre plat (ISO 22476-11:2017)
Ce document établit les directives pour les exigences applicables à l'équipement, la réalisation et le compte-rendu des essais au dilatomètre plat.
NOTE Ce document satisfait aux exigences relatives aux essais au dilatomètre plat dans le cadre des reconnaissances et essais géotechniques conformément aux normes EN 1997-1 et EN 1997-2.
L'essai de référence au dilatomètre plat consiste à insérer verticalement dans le sol une sonde en acier en forme de lame dont l'une des faces est équipée d'une fine membrane circulaire en acier extensible montée de façon affleurante et à déterminer, à des intervalles de profondeur prédéfinis, deux pressions : la pression de contact exercée par le sol sur la membrane lorsque la membrane est affleurante par rapport à la lame et la pression exercée lorsque le déplacement au centre de la membrane atteint 1,10 mm.
Les résultats des essais au dilatomètre plat sont principalement utilisés pour obtenir des informations relatives à la stratigraphie du sol, à l'état de contrainte in situ, aux propriétés de déformation ainsi qu'à la résistance au cisaillement. L'essai au dilatomètre plat convient plus particulièrement pour les argiles, les limons et les sables, lorsque les particules sont petites par rapport à la taille de la membrane.
Geotehnično preiskovanje in preskušanje - Preskušanje na terenu - 11. del: Ploskovni dilatometrski preskus (ISO 22476-11:2017)
Ta dokument podaja smernice v zvezi z zahtevami glede opreme, izvajanja ploskovnega dilatometrskega preskusa ter poročanja v zvezi z njim.
OPOMBA: Ta dokument izpolnjuje zahteve za ploskovne dilatometrske preskuse v okviru geotehničnega preiskovanja in preskušanja v skladu s standardoma EN 1997-1 in EN 1997-2.
Osnovni ploskovni dilatometrski preskus je sestavljen iz vstavitve jeklene preskuševalne glave v obliki rezila s tanko razširljivo krožno jekleno membrano, ki je na eni strani poravnana z glavo, navpično v tla in določitve dveh tlakov pri izbranih intervalih globine: kontaktni tlak, s katerim tla pritiskajo na membrano,
ko je membrana poravnana z glavo, in tlak, ki nastane, ko je membrana odmaknjena od sredine za 1,10 mm.
Rezultati ploskovnega dilatometrskega preskusa večinoma uporabljajo za pridobivanje informacij o stratigrafiji tal, obremenitvi na mestu preskusa, deformacijskih lastnostih in strižni trdnosti. Uporablja se tudi za odkrivanje drsnih površin v glini. Ploskovni dilatometrski preskus je najbolj primeren za glino, mulj in pesek, kjer so delci majhni v primerjavi z velikostjo membrane.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-oktober-2017
1DGRPHãþD
SIST-TS CEN ISO/TS 22476-11:2008
*HRWHKQLþQRSUHLVNRYDQMHLQSUHVNXãDQMH3UHVNXãDQMHQDWHUHQXGHO
3ORVNRYQLGLODWRPHWUVNLSUHVNXV ,62
Geotechnical investigation and testing - Field testing - Part 11: Flat dilatometer test (ISO
22476-11:2017)
Geotechnische Erkundung und Untersuchung - Felduntersuchungen - Teil 11:
Flachdilatometerversuch (ISO 22476-11:2017)
Reconnaissance et essais géotechniques - Essais en place - Partie 11: Essai au
dilatomètre plat (ISO 22476-11:2017)
Ta slovenski standard je istoveten z: EN ISO 22476-11:2017
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 22476-11
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2017
EUROPÄISCHE NORM
ICS 93.020 Supersedes CEN ISO/TS 22476-11:2005
English Version
Geotechnical investigation and testing - Field testing - Part
11: Flat dilatometer test (ISO 22476-11:2017)
Reconnaissance et essais géotechniques - Essais en Geotechnische Erkundung und Untersuchung -
place - Partie 11: Essai au dilatomètre plat (ISO 22476- Felduntersuchungen - Teil 11:
11:2017) Flachdilatometerversuch (ISO 22476-11:2017)
This European Standard was approved by CEN on 20 March 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 22476-11:2017 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 22476-11:2017) 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 AFNOR.
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 November 2017 and conflicting national standards
shall be withdrawn at the latest by November 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 22476-11:2005.
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 22476-11:2017 has been approved by CEN as EN ISO 22476-11:2017 without any
modification.
INTERNATIONAL ISO
STANDARD 22476-11
First edition
2017-04
Geotechnical investigation and
testing — Field testing —
Part 11:
Flat dilatometer test
Reconnaissance et essais géotechniques — Essais en place —
Partie 11: Essai au dilatomètre plat
Reference number
ISO 22476-11:2017(E)
©
ISO 2017
ISO 22476-11:2017(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
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ii © ISO 2017 – All rights reserved
ISO 22476-11:2017(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 . 4
4 Equipment . 4
4.1 Dilatometer equipment . 4
4.2 Insertion apparatus . 6
5 Test procedure . 7
5.1 Maintenance and checks . 7
5.2 Membrane calibration procedure . 8
5.3 Flat dilatometer test . 8
5.3.1 Operations before testing . 8
5.3.2 Basic test procedure . 8
5.3.3 C-pressure readings . 9
5.3.4 Operations after testing . 9
5.4 DMT dissipation test (DMTA) . 9
5.5 DMT short dissipation test (DMTA-s) . 9
5.6 Safety requirements .10
6 Test results .10
7 Report .11
7.1 General .11
7.2 Reporting of test results .11
7.2.1 General information .11
7.2.2 Location of sounding .12
7.2.3 Test equipment .12
7.2.4 Test procedure .13
7.2.5 Test results .13
7.3 Presentation of results .13
Annex A (informative) Example interpretation formulae .15
Bibliography .17
ISO 22476-11:2017(E)
Foreword
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ISO 22476-11 was prepared by the European Committee for Standardization (CEN) Technical Committee
CEN/TC 341, Geotechnical investigating and testing, in collaboration with ISO Technical Committee
TC 182, Geotechniques, in accordance with the agreement on technical cooperation between ISO and
CEN (Vienna Agreement).
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