prEN ISO 22477-5

Geotechnical investigation and testing - Testing of geotechnical structures - Part 5: Testing of anchorages (ISO/DIS 22477-5:2009)

This Standard establishes specifications for the execution of tension load tests where an anchor grouted in the ground, as defined in EN 1997-1, is loaded by step (method 3) or in incremental cycles (methods 1 and 2) from a datum load to a maximum test load. The displacement of the anchor head is measured over a period of time at each step (method 3) or at maximum load in each incremental cycle (method 1). The loss of load is measured over a period of time, at maximum load after lock off, in each incremental cycle (method 2).
This standard provides specifications for three types of tension tests: investigation tests, suitability tests and acceptance tests.

Geotechnische Erkundung und Untersuchung - Prüfung von geotechnischen Bauwerken und Bauwerksteilen - Teil 5: Ankerprüfungen (ISO/DIS 22477-5:2009)

(1) Diese Norm stellt Spezifikationen für die Ausführung von Zugversuchen zur Verfügung, bei denen ein
Verpressanker, wie in EN 1997-1 definiert, schrittweise (Prüfverfahren 3) oder in schrittweise gesteigerten
Zyklen (Prüfverfahren 1 und 2) von einer Vorbelastung bis zu einer maximalen Prüflast gespannt wird. Die
Ankerkopfverschiebung wird über eine bestimmte Zeitdauer bei jeder Laststufe unter konstanter Last
(Prüfverfahren 3), oder bei maximaler Last in jedem Spannzyklus (Prüfverfahren 1) aufgezeichnet. Der
Kraftabfall am Ankerkopf wird während der Beobachtungszeit sowohl bei der Festlegekraft als auch bei der
Festlegekraft eines jeden Spannzyklus gemessen (Methode 2).
(2) Diese Norm nennt Einzelheiten für drei Arten von Prüfungen: Untersuchungsprüfung, Eignungsprüfung
und Abnahmeprüfung. Die Prüfungen sind in EN 1997-1 definiert als:
Prüfungen zur Ermittlung des Herausziehwiderstands (Untersuchungsprüfungen),
ANMERKUNG 1 Mit diesem Versuch können auch weitere Kenngrößen wie z. B. die kritische Kriechkraft festgestellt
werden.
Belastungsprüfungen zur Bestätigung der Eignung einer gegebenen Ankerkonstruktion für gegebene
Baubedingungen (Eignungsprüfungen),
ANMERKUNG 2 In der Regel wird dieser Versuch mit gleich großen Prüfkräften wie bei der Abnahmeprüfung an
Bauwerksankern durchgeführt. Werden höhere Prüfkräfte verwendet, ist der Versuch wie eine Untersuchungsprüfung zu
betrachten und die Versuchsanker können nicht als Bauwerksanker verwendet werden.
Belastungsprüfungen an jedem Anker mit denen überprüft wird, ob jeder Anker mindestens die
Bemessungskraft tragen kann (Abnahmeprüfungen).
(3) Innerhalb eines Projektes darf nur ein Prüfverfahren verwendet werden. Das Prüfverfahren muss in der
Projektbeschreibung verbindlich festgelegt werden.

Reconnaissance et essais géotechniques - Essais des structures géotechniques - Partie 5 : Essai du tirant d'ancrage (ISO/DIS 22477-5:2009)

Geotehnično preiskovanje in preskušanje - Preskušanje geotehničnih konstrukcij - 5. del: Preskušanje sider (ISO/DIS 22477-5:2009)

General Information

• Status: Not Published
• ICS: 93.020 - Earthworks. Excavations. Foundation construction. Underground works
• Technical Committee: CEN/TC 341 - Geotechnical Investigation and Testing
• Drafting Committee: CEN/TC 341/WG 4 - Testing of geotechnical structures
• Current Stage: 4098 - Decision to abandon - Enquiry
• Due Date: 11-May-2012
• Completion Date: 11-May-2012
• Ref Project: oSIST prEN ISO 22477-5:2010 - Geotechnical investigation and testing - Testing of geotechnical structures - Part 5: Testing of anchorages (ISO/DIS 22477-5:2009)

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN ISO 22477-5:2010
01-april-2010
*HRWHKQLþQRSUHLVNRYDQMHLQSUHVNXãDQMH3UHVNXãDQMHJHRWHKQLþQLKNRQVWUXNFLM
GHO3UHVNXãDQMHVLGHU,62',6
Geotechnical investigation and testing - Testing of geotechnical structures - Part 5:
Testing of anchorages (ISO/DIS 22477-5:2009)
Geotechnische Erkundung und Untersuchung - Prüfung von geotechnischen Bauwerken
und Bauwerksteilen - Teil 5: Ankerprüfungen (ISO/DIS 22477-5:2009)
Reconnaissance et essais géotechniques - Essais des structures géotechniques - Partie
5 : Essai du tirant d'ancrage (ISO/DIS 22477-5:2009)
Ta slovenski standard je istoveten z: prEN ISO 22477-5
ICS:
93.020 Zemeljska dela. Izkopavanja. Earthworks. Excavations.
Gradnja temeljev. Dela pod Foundation construction.
zemljo Underground works
oSIST prEN ISO 22477-5:2010 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 22477-5:2010

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oSIST prEN ISO 22477-5:2010


EUROPEAN STANDARD
DRAFT
prEN ISO 22477-5
NORME EUROPÉENNE

EUROPÄISCHE NORM

December 2009
ICS 93.020
English Version
Geotechnical investigation and testing - Testing of geotechnical
structures - Part 5: Testing of anchorages (ISO/DIS 22477-
5:2009)
Reconnaissance et essais géotechniques - Essais des Geotechnische Erkundung und Untersuchung - Prüfung
structures géotechniques - Partie 5 : Essai du tirant
von geotechnischen Bauwerken und Bauwerksteilen - Teil
d'ancrage (ISO/DIS 22477-5:2009) 5: Ankerprüfungen (ISO/DIS 22477-5:2009)
This draft European Standard is submitted to CEN members for parallel enquiry. It has been drawn up by the Technical Committee
CEN/TC 341.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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 Management Centre has the
same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.


EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2009 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN ISO 22477-5:2009: E
worldwide for CEN national Members.

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oSIST prEN ISO 22477-5:2010
prEN ISO 22477-5:2009 (E)
Contents Page
Foreword .3

2

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oSIST prEN ISO 22477-5:2010
prEN ISO 22477-5:2009 (E)
Foreword
This document (prEN ISO 22477-5:2009) has been prepared by Technical Committee CEN/TC 341
“Geotechnical Investigation and Testing”, the secretariat of which is held by ELOT, in collaboration with
Technical Committee ISO/TC 182 "Geotechnics".
This document is currently submitted to the parallel Enquiry.

3

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oSIST prEN ISO 22477-5:2010

DRAFT INTERNATIONAL STANDARD ISO/DIS 22477-5
ISO/TC 182/SC 1 Secretariat: DIN
Voting begins on Voting terminates on

2009-12-17 2010-05-17
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION  •  МЕЖДУНАРОДНАЯ ОРГАНИЗАЦИЯ ПО СТАНДАРТИЗАЦИИ  •  ORGANISATION INTERNATIONALE DE NORMALISATION

Geotechnical investigation and testing — Testing of geotechnical
structures —
Part 5:
Testing of anchorages
Reconnaissance et essais géotechniques — Essais de structures géotechniques —
Partie 5: Essai du tirant d'ancrage
ICS 93.020


ISO/CEN PARALLEL PROCESSING
This draft has been developed within the European Committee for Standardization (CEN), and
processed under the CEN-lead mode of collaboration as defined in the Vienna Agreement.
This draft is hereby submitted to the ISO member bodies and to the CEN member bodies for a parallel
five-month enquiry.
Should this draft be accepted, a final draft, established on the basis of comments received, will be
submitted to a parallel two-month approval vote in ISO and formal vote in CEN.

In accordance with the provisions of Council Resolution 15/1993 this document is circulated
in the English language only.
Conformément aux dispositions de la Résolution du Conseil 15/1993, ce document est
distribué en version anglaise seulement.

To expedite distribution, this document is circulated as received from the committee
secretariat. ISO Central Secretariat work of editing and text composition will be undertaken at
publication stage.
Pour accélérer la distribution, le présent document est distribué tel qu'il est parvenu du
secrétariat du comité. Le travail de rédaction et de composition de texte sera effectué au
Secrétariat central de l'ISO au stade de publication.


THIS DOCUMENT IS A DRAFT CIRCULATED FOR COMMENT AND APPROVAL. IT IS THEREFORE SUBJECT TO CHANGE AND MAY NOT BE REFERRED TO
AS AN INTERNATIONAL STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS BEING ACCEPTABLE FOR INDUSTRIAL, TECHNOLOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL TO BECOME STANDARDS TO WHICH
REFERENCE MAY BE MADE IN NATIONAL REGULATIONS.
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT, WITH THEIR COMMENTS, NOTIFICATION OF ANY RELEVANT PATENT RIGHTS OF WHICH THEY
ARE AWARE AND TO PROVIDE SUPPORTING DOCUMENTATION.
©  International Organization for Standardization, 2009

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oSIST prEN ISO 22477-5:2010
ISO/DIS 22477-5
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ii © ISO 2009 – All rights reserved

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oSIST prEN ISO 22477-5:2010
ISO/DIS 22477-5
Contents Page
Foreword . vii
Introduction . viii
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and symbols . 2
3.1 Terms and definitions . 2
3.2 Symbols . 2
4 Equipment . 4
4.1 Test loading set-up . 4
4.2 Reaction system . 5
4.3 Loading device . 5
4.4 Load measurement . 6
4.5 Displacement measurement . 6
4.6 Time and temperature measurement . 6
5 Test procedures . 7
5.1 General . 7
5.2 Method 1: Cyclic tension test with displacement measurement at peak load . 7
5.3 Method 2: Cyclic tension test with loss of load measurement at peak load . 7
5.4 Method 3: Step-loaded maintained tension test . 7
6 Test report . 7
6.1 Investigation and suitability tests . 7
6.2 Acceptance test . 8
Annex A (normative) Test Procedure: Method 1 . 10
A.1 Investigation test procedure . 10
A.1.1 Test anchors . 10
A.1.2 Time period between installation and testing . 10
A.1.3 Test execution . 11
A.1.4 Test results . 14
A.2 Suitability test procedure . 14
A.2.1 General . 14
A.2.2 Test anchor . 14
A.2.3 Time period between installation and testing . 14
A.2.4 Test execution . 14
A.2.5 Test results . 17
A.3 Acceptance test procedure . 17
A.3.1 General . 17
A.3.2 Time period between installation and testing . 17
A.3.3 Test execution . 17
A.3.4 Test results . 19
Annex B (informative) Examples of test reports: Method 1 . 20
B.1 Investigation test . 21
B.2 Suitability test . 22
B.3 Acceptance test . 23
Annex C (normative) Test procedure: Method 2 . 24
C.1 Investigation test procedure . 24
C.1.1 General . 24
C.1.2 Test anchors . 24
© ISO 2009 – All rights reserved iii

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C.1.3 Time period between installation and testing .25
C.1.4 Test execution .25
C.1.5 Test results .27
C.2 Suitability test procedure .27
C.2.1 General .27
C.2.2 Test anchor .27
C.2.3 Time period between installation and loading .28
C.2.4 Test execution .28
C.2.5 Test results .30
C.3 Acceptance test procedure .30
C.3.1 General .30
C.3.2 Time between installation and testing .31
C.3.3 Test execution .31
C.3.4 Test results .33
Annex D (informative) Examples of test reports: Method 2 .34
D.1 Investigation test .35
D.2 Suitability test .36
D.3 Acceptance test .37
Annex E (normative) Test procedure: Method 3 .38
E.1 Investigation test procedure .38
E.1.1 General .38
E.1.2 Test anchors .38
E.1.3 Time period between installation and testing .39
E.1.4 Test execution .39
E.1.5 Test results .41
E.2 Suitability test procedure .41
E.2.1 General .41
E.2.2 Test anchor .41
E.2.3 Time period between installation and testing .42
E.2.4 Test execution .42
E.2.5 Test results .44
E.3 Acceptance test procedure .44
E.3.1 General .44
E.3.2 Time period between installation and testing .45
E.3.3 Test execution .45
E.3.4 Test results .47
Annex F (informative) Examples of test reports: Method 3 .49
F.1 Investigation test .50
F.2 Suitability test .51
F.3 Acceptance test .52
Annex G (informative) Guidance on allowable α (Method 1) and test interpretation .53
1
G.1 Determination of α .53
1
G.2 Suitability test .54
G.3 Acceptance test .54
Annex H (informative) Guidance on allowable k and on test interpretation: Method 2 .56
i
H.1 Permissible cumulative loss of load k .56
l
H.1.1 Investigation test .56
H.1.2 Suitability test .56
H.1.3 Acceptance test .56
H.2 Determination of the anchor critical resistance R .56
c
H.3 Determination of the anchor pull out resistance R .57
a
Annex I (informative) Guidance on allowable α and test interpretation: Method 3 .59
3
I.1 Determination of α .59
3
I.1.1 Allowable value of α for suitability tests .59
3
I.1.2 Allowable value of α for acceptance tests .60
3
I.2 Determination of the critical creep load P .60
c
iv © ISO 2009 – All rights reserved

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oSIST prEN ISO 22477-5:2010
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I.3 Determination of anchor pull out resistance R . 61
a
Annex J (informative) Evaluation of the apparent tendon free length . 63
J.1 General . 63
J.2 Determination of friction resistance . 63
J.3 Tolerances . 64

Figures
Figure 1 — Sketch of a ground anchor (details of anchor head and head protection omitted) . 4
Figure 2 — Test loading set-up (example for an investigation test) . 5
Figure A.1 — Loading procedure – Investigation test method 1 . 12
Figure A.2 — Plot of increase of displacements vs. number of cycles . 13
Figure A.3 — Loading procedure – Suitability test method 1 . 15
Figure A.4 — Loading procedure – Acceptance test method 1 . 18
Figure B.1 — Cyclic tension test (Method 1) – Example of investigation test report . 21
Figure B.2 — Cyclic tension test (Method 1) – Example of suitability test report . 22
Figure B.3 — Cyclic tension test (Method 1) – Example of acceptance test report . 23
Figure C.1 — Loading procedure – Investigation test method 2 . 26
Figure C.2 — Loading procedure – Suitability test method 2 (permanent anchorage) . 29
Figure C.3 — Loading procedure – Acceptance test method 2 (permanent anchorages) . 32
Figure D.1 — Cyclic tension test (Method 2) – Example of investigation test report . 35
Figure D.2 — Cyclic tension test (Method 2) – Example of suitability test report . 36
Figure D.3 — Cyclic tension test (Method 2) – Example of acceptance test report . 37
Figure E.1 — Loading procedure – Investigation test method 3 . 40
Figure E.2 — Loading procedure – Suitability test method 3 . 43
Figure E.3 — Loading procedure – Acceptance test method 3 . 46
Figure F.1 — Maintained tension test (Method 3) – Example of investigation test report . 50
Figure F.2 — Maintained tension test (Method 3) – Example of suitability test report . 51
Figure F.3 — Maintained tension test (Method 3) – Example of acceptance test report . 52
Figure G.1 — Time displacement plot for calculation the creep ratio α . 53
1
Figure H.1 — Determination of the anchor critical resistance – Investigation test . 57
Figure H.2 — Determination of the anchor pull out resistance – Investigation test . 58
Figure I.1 — Determination of the slope of the stabilization curve at constant load . 59
© ISO 2009 – All rights reserved v

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oSIST prEN ISO 22477-5:2010
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Figure I.2 — Determination of the anchor critical resistance – Investigation test. 61
Figure I.3 — Determination of the anchor pull out resistance – Investigation test – Method 3 . 62
Figure J.1 — Estimate of elastic stiffness where there is significant friction . 64

Tables
Table A.1 — Loading procedure – Investigation test method 1 . 12
Table A.2 — Loading procedure – Suitability test method 1 . 16
Table A.3— Loading procedure – Acceptance test method 1 . 18
Table C.1 — Loading procedure – Investigation test method 2 . 26
Table C.2 — Loading procedure – Suitability test method 2 . 29
Table C.
...