EN ISO 18674-8:2023
(Main)Geotechnical investigation and testing - Geotechnical monitoring by field instrumentation - Part 8: Measurement of loads: Load cells (ISO 18674-8:2023)
Geotechnical investigation and testing - Geotechnical monitoring by field instrumentation - Part 8: Measurement of loads: Load cells (ISO 18674-8:2023)
This document specifies the measurement of forces by means of load cells carried out for geotechnical monitoring. General rules of performance monitoring of the ground, of structures interacting with the ground, of geotechnical fills and of geotechnical works are presented in ISO 18674-1.
This document is applicable to:
— performance monitoring of geotechnical structures such as anchors, tiebacks, piles, struts, props and steel linings;
— checking geotechnical designs and adjustment of construction in connection with the observational method;
— evaluating stability during or after construction.
This document is not applicable to devices where the load is purposely applied to geotechnical structures in the wake of geotechnical field tests such as calibrated hydraulic jacks for pull-out tests of anchors or load tests of piles.
NOTE 1 This document fulfils the requirements for the performance monitoring of the ground, of structures interacting with the ground and of geotechnical works by the means of load cells as part of the geotechnical investigation and testing in accordance with References [2] and [3].
NOTE 2 ISO 18674-7 is intended to define the measurement of forces by means of strain or displacement gauges.
Geotechnische Erkundung und Untersuchung - Geotechnische Messungen - Teil 8: Messung von Kräften: Kraftmessdosen (ISO 18674-8:2023)
Dieses Dokument legt Merkmale für Kraftmessungen mittels Kraftmessdosen, die zur geotechnischen Messung durchgeführt werden, fest. Allgemeine Regeln für die messtechnische Überwachung von Baugrund, von Bauwerken, die mit dem Baugrund in Wechselwirkung stehen, von geotechnischen Auffüllungen und von geotechnischen Arbeiten sind in ISO 18674 1 festgelegt.
Dieses Dokument ist anzuwenden für:
messtechnische Überwachung von geotechnischen Bauwerken wie Anker, Zuganker, Pfähle, Steifen, Stützen und Stahlauskleidungen;
Überprüfung geotechnischer Entwürfe und Konstruktionsanpassung in Verbindung mit der Beobachtungsmethode;
Bewertung der Stabilität während oder nach dem Bau.
Dieses Dokument ist nicht anwendbar für Vorrichtungen, bei denen die Last im Verlauf geotechnischer Feldprüfungen absichtlich auf geotechnische Bauwerke aufgebracht wird, beispielsweise kalibrierte Hydraulikzylinder für Auszugsprüfungen von Ankern oder Belastungsprüfungen von Pfählen.
ANMERKUNG 1 Dieses Dokument erfüllt die Anforderungen an die messtechnische Überwachung von Baugrund, von Bauwerken, die mit dem Baugrund in Wechselwirkung stehen, und von geotechnischen Arbeiten mittels Kraftmessdosen als Teil geotechnischer Erkundung und Untersuchung nach Literaturhinweisen [2] und [3].
ANMERKUNG 2 ISO 18674 7 ist zur Festlegung der Kraftmessung mittels Dehnungsmessstreifen oder Verschiebungsmessgeräten vorgesehen.
WICHTIG — Die elektronische Datei dieses Dokuments enthält Farben, die für das richtige Verständnis des Dokuments als zweckmäßig erachtet werden. Die Benutzer sollten daher in Erwägung ziehen, dieses Dokument mit einem Farbdrucker auszudrucken.
Reconnaissance et essais géotechniques - Surveillance géotechnique par instrumentation in situ - Partie 8: Mesure de charges : cellules de charge (ISO 18674-8:2023)
Le présent document spécifie la mesure des forces au moyen de cellules de charge en vue de réaliser une surveillance géotechnique. Les règles générales de surveillance des performances du terrain, des structures en interaction avec le terrain, des remblais et des travaux géotechniques sont présentées dans l’ISO 18674-1.
Le présent document s’applique:
— à la surveillance des performances des structures géotechniques telles que les ancrages, les boulons d’ancrage, les tirants d’ancrage, les pieux, les butons, les étais et les soutènements en acier;
— au contrôle des calculs géotechniques et à l’ajustement d’une construction en lien avec la procédure observationnelle;
— à l’évaluation de la stabilité durant ou après la construction.
Ce document n'est pas applicable aux dispositifs où la charge est appliquée à dessein aux structures géotechniques à la suite d’essais géotechniques sur le terrain, tels que les vérins hydrauliques étalonnés pour les essais d’arrachement des ancrages ou les essais de charge des pieux.
NOTE 1 Le présent document satisfait aux exigences relatives à la surveillance des performances du terrain, des structures en interaction avec le terrain et des ouvrages géotechniques au moyen de cellules de charge mises en œuvre dans le cadre des études et essais géotechniques conformément aux Références [2] et [3].
NOTE 2 L'ISO 18674-7 a pour objet de définir la mesure des forces au moyen de jauges de déformation ou de déplacement.
Geotehnično preiskovanje in preskušanje - Geotehnične meritve - 8. del: Merjenje sil: obremenilne celice (ISO 18674-8:2023)
Ta standard je 8. del skupine standardov ISO 18674, kot je opisano v standardu ISO 18674-1: 1. del.
Podana so splošna pravila za metode in pravila za merjenje običajnih sil oziroma obremenitev sidrnih sistemov, vezi, opornikov in drugih elementov (npr. pilotov) v geotehničnem inženiringu ali splošneje v inženirstvu temeljev.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2024
Geotehnično preiskovanje in preskušanje - Geotehnične meritve - 8. del: Merjenje
sil: obremenilne celice (ISO 18674-8:2023)
Geotechnical investigation and testing - Geotechnical monitoring by field instrumentation
- Part 8: Measurement of loads: Load cells (ISO 18674-8:2023)
Geotechnische Erkundung und Untersuchung - Geotechnische Messungen - Teil 8:
Messung von Kräften: Kraftmessdosen (ISO 18674-8:2023)
Reconnaissance et essais géotechniques - Surveillance géotechnique par
instrumentation in situ - Partie 8: Mesure de charges : cellules de charge (ISO 18674-
8:2023)
Ta slovenski standard je istoveten z: EN ISO 18674-8:2023
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 18674-8
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2023
EUROPÄISCHE NORM
ICS 93.020
English Version
Geotechnical investigation and testing - Geotechnical
monitoring by field instrumentation - Part 8: Measurement
of loads: Load cells (ISO 18674-8:2023)
Reconnaissance et essais géotechniques - Surveillance Geotechnische Erkundung und Untersuchung -
géotechnique par instrumentation in situ - Partie 8: Geotechnische Messungen - Teil 8: Messung von
Mesure de charges : cellules de charge (ISO 18674- Kräften: Kraftmessdosen (ISO 18674-8:2023)
8:2023)
This European Standard was approved by CEN on 19 August 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 18674-8:2023 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 18674-8:2023) 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 March 2024, and conflicting national standards shall
be withdrawn at the latest by March 2024.
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.
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 18674-8:2023 has been approved by CEN as EN ISO 18674-8:2023 without any
modification.
INTERNATIONAL ISO
STANDARD 18674-8
First edition
2023-09
Geotechnical investigation and
testing — Geotechnical monitoring by
field instrumentation —
Part 8:
Measurement of loads: Load cells
Reconnaissance et essais géotechniques — Surveillance géotechnique
par instrumentation in situ —
Partie 8: Mesure de charges: Cellules de charge
Reference number
ISO 18674-8:2023(E)
ISO 18674-8:2023(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
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Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
ISO 18674-8:2023(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms.3
5 Instruments. 3
5.1 General . 3
5.2 Electric load cells . 4
5.3 Hydraulic load cells . 5
5.4 Instruments for specific applications . 6
5.4.1 Anchor load cells. 6
5.4.2 Load cell for cast-in-place concrete piles . 7
5.5 Measurement accuracy . 9
6 Installation and measuring procedure . 9
6.1 Installation . 9
6.1.1 General . 9
6.1.2 Anchor load cells. 10
6.1.3 Load cells at the base of cast-in-place concrete piles . 10
6.1.4 Load cells for struts across excavations . 11
6.2 Carrying out the measurement . . . 11
6.2.1 Instrumentation check and calibration . 11
6.2.2 Measurement .12
7 Data processing and evaluation .12
8 Reporting .13
8.1 Installation report . 13
8.2 Monitoring report . 13
Annex A (informative) Geotechnical applications .14
Annex B (informative) Measuring examples .15
Bibliography .33
iii
ISO 18674-8:2023(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
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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 document 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).
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of (a) patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed
patent rights in respect thereof. As of the date of publication of this document, ISO had not received
notice of (a) patent(s) which may be required to implement this document. However, implementers are
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www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 182, Geotechnics, in collaboration with
the European Committee for Standardization (CEN) Technical Committee CEN/TC 341, Geotechnical
Investigation and Testing, in accordance with the Agreement on technical cooperation between ISO and
CEN (Vienna Agreement).
A list of all parts in the ISO 18674 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national
...
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