oSIST prEN ISO 22477-2:2022
(Main)Geotechnical investigation and testing - Testing of geotechnical structures - Part 2: Testing of piles: static tension load testing (ISO/DIS 22477-2:2022)
Geotechnical investigation and testing - Testing of geotechnical structures - Part 2: Testing of piles: static tension load testing (ISO/DIS 22477-2:2022)
This document establishes the specifications for the execution of static pile load tests in which a single pile is subjected to an axial static load in tension in order to define its load-displacement behaviour.
This document is applicable to vertical piles as well as raking piles.
All types of piles are covered by this document. The tests considered in this document are limited to maintained load tests. Cyclic load tests are not covered by this document.
NOTE This document is intended to be used in conjunction with EN 1997-1. EN 1997-1 provides numerical values of partial factors for limit states and of correlation factors to derive characteristic values from static pile load tests to be taken into account in design.
This document provides specifications for the execution of static axial pile load tests:
a) checking that a pile will behave as designed;
b) measuring the resistance of a pile.
Geotechnische Erkundung und Untersuchung - Prüfung von geotechnischen Bauwerken und Bauwerksteilen - Teil 2: Statisch axiale Pfahlprobelastung auf Zug (ISO/DIS 22477-2:2022)
Reconnaissance et essais géotechniques - Essais des structures géotechniques - Partie 2: Titre manque (ISO/DIS 22477-2:2022)
Geotehnično preiskovanje in preskušanje - Preskušanje geotehničnih konstrukcij – 2. del: Preskušanje pilotov: statični natezni preskus (ISO/DIS 22477-2:2022)
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-junij-2022
Geotehnično preiskovanje in preskušanje - Preskušanje geotehničnih konstrukcij -
2. del: Preskušanje pilotov: preskus s statično natezno obtežbo (ISO/DIS 22477-
2:2022)
Geotechnical investigation and testing - Testing of geotechnical structures - Part 2:
Testing of piles: static tension load testing (ISO/DIS 22477-2:2022)
Geotechnische Erkundung und Untersuchung - Prüfung von geotechnischen Bauwerken
und Bauwerksteilen - Teil 2: Statisch axiale Pfahlprobelastung auf Zug (ISO/DIS 22477-
2:2022)
Reconnaissance et essais géotechniques - Essais des structures géotechniques - Partie
2: Titre manque (ISO/DIS 22477-2:2022)
Ta slovenski standard je istoveten z: prEN ISO 22477-2
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.
DRAFT INTERNATIONAL STANDARD
ISO/DIS 22477-2
ISO/TC 182 Secretariat: BSI
Voting begins on: Voting terminates on:
2022-04-12 2022-07-05
Geotechnical investigation and testing — Testing of
geotechnical structures —
Part 2:
Testing of piles: Static tension load testing
ICS: 93.020
This document is circulated as received from the committee secretariat.
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ISO/DIS 22477-2:2022(E)
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PROVIDE SUPPORTING DOCUMENTATION. © ISO 2022
ISO/DIS 22477-2:2022(E)
© ISO 2022
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ii
ISO/DIS 22477-2:2022(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and symbols . 1
3.1 Terms, definitions . 2
3.2 Symbols . 2
4 Equipment . 3
4.1 General . 3
4.2 Reaction device . 3
4.3 Force Input . 4
4.3.1 General . 4
4.3.2 Specifications of force input . 5
4.4 Measurement of pile head displacements . 5
4.5 Measurement of pile load . 6
4.6 Pile instrumentation . 6
5 Test procedure .7
5.1 Test preparation . 7
5.1.1 Protections . 7
5.1.2 Construction of a test pile . 7
5.1.3 Test date . 7
5.2 Loading procedure . 8
5.2.1 General . 8
5.2.2 Load step sequence and duration of load steps for one cycle procedure . 8
5.2.3 Load step sequence and duration of load steps for multiple cycle procedure. 9
5.2.4 Maximum test load F . 10
p
5.2.5 Measuring intervals . 10
6 Test report .11
6.1 General . 11
6.2 General information. 11
6.3 Data report . 12
6.4 Interpretative report .13
Annex A (informative) Critical creep load in tension .19
iii
ISO/DIS 22477-2:2022(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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electrotechnical standardization.
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described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
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URL: www.iso.org/iso/foreword.html.
This document was prepared by the European Committee for Standardization (CEN) in collaboration
with Technical Committee ISO/TC 182, Geotechnics in accordance with the Agreement on technical
cooperation between ISO and CEN (Vienna Agreement).
A list of all parts in the ISO 22477 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/members .html.
iv
DRAFT INTERNATIONAL STANDARD ISO/DIS 22477-2:2022(E)
Geotechnical investigation and testing — Testing of
geotechnical structures —
Part 2:
Testing of piles: Static tension load testing
1 Scope
This document establishes the specifications for the execution of static pile load tests in which a single
pile is subjected to an axial static load in tension in order to define its load-displacement behaviour.
This document is applicable to vertical piles as well as raking piles.
All types of piles are covered by this document. The tests considered in this document are limited to
maintained load tests. Pile cyclic load tests are not covered by this document.
NOTE ISO 22477-2 is intended to be used in conjunction with EN 1997-1. Numerical values of partial factors
for limit states and of correlation factors to derive characteristic values from static pile load tests to be taken
into account in design are provided in EN 1997-1.
This document provides specifications for the execution of static axial pile load test:
a) checking that a pile will behave as designed,
b) measuring the resistance of a pile.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 7500-1, Metallic materials — Calibration and verification of static uniaxial testing machines — Part 1:
Tension/compression testing machines — Calibration and verification of the force-measuring system
EN 1990, Eurocode 0: Basis of structural design
EN 1997-1, Eurocode 7: Geotechnical design — Part 1: General rules
EN 1997-2, Eurocode 7: Geotechnical design — Part 2: Ground investigation and testing
3 Terms, definitions and symbols
For the purposes of this document, the terms and definitions given in EN 1990, EN 1997-1, EN 1997-2
and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
ISO/DIS 22477-2:2022(E)
3.1 Terms, definitions
3.1.1
pile load
F
t
tension load applied to the head of the pile during the test
3.1.2
load increment
ΔF
increment of load added or removed during the test
3.1.3
pile diameter/Equivalent pile diameter
D
diameter of the pile
4A
Note 1 to entry: For non-circular pile with cross section A , the equivalent pile diameter equals .
π
3.1.4
working pile
pile for the foundation of a structure
3.1.5
test pile
pile to which loads are applied to determine the r
...
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