EN 1536:2010/FprA1
(Amendment)Execution of special geotechnical work - Bored piles
Execution of special geotechnical work - Bored piles
.1 This European Standard establishes general principles for the execution of bored piles (see 3.2). NOTE 1 This standard covers piles or barrettes which are formed in the ground by excavation and are structural members used to transfer actions and/or limit deformations. NOTE 2 This standard covers piles with circular cross-section (see Figures 1 and A.1a)) and barrettes (see 3.3) with rectangular, T or L or any other similar cross-section (see Figure 2) concreted in a single operation. NOTE 3 In the standard the term pile is used for circular cross-section structure and the term barrette for other shapes. Both are bored piles. 1.2 This European Standard applies to bored piles (see Figure 3) with: - uniform cross-section (straight shaft); - telescopically changing shaft dimensions; - excavated base enlargements; or - excavated shaft enlargements. NOTE The shape of a pile base and of an enlargement depends on the tool used for the excavation. 1.3 This European Standard applies (see Note) to: - bored piles with a depth to width ratio 5; - piles (see Figures 1 and 3) with a shaft diameter 0,3 m D 3,0 m; - barrettes (see Figure 2) with the least dimension Wi 0,4 m, a ratio LBiB / Wi between its largest and its least dimensions 6 and a cross-sectional area A 15 m²; - piles with circular precast elements used as structural member (see Figure 7) with a least dimension DP 0,3 m; - barrettes with rectangular precast elements used as structural member with a least dimension WP 0,3 m. NOTE The standard covers a large range of diameters. For small diameter bored piles less than 450 mm, the general specification can be adapted to cater for the lack of space (e.g. minimum bars number and spacing). 1.4 This European Standard applies to piles with the following rake (see Figure 4):
Ausführung von Arbeiten im Spezialtiefbau - Bohrpfähle
Exécution des travaux géotechniques spéciaux - Pieux forés
Izvedba posebnih geotehničnih del - Uvrtani piloti
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2014
,]YHGEDSRVHEQLKJHRWHKQLþQLKGHO8YUWDQLSLORWL
Execution of special geotechnical work - Bored piles
Ausführung von Arbeiten im Spezialtiefbau - Bohrpfähle
Exécution des travaux géotechniques spéciaux - Pieux forés
Ta slovenski standard je istoveten z: EN 1536:2010/FprA1
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.
EUROPEAN STANDARD
FINAL DRAFT
EN 1536:2010
NORME EUROPÉENNE
EUROPÄISCHE NORM
FprA1
October 2014
ICS 93.020
English Version
Execution of special geotechnical work - Bored piles
Exécution des travaux géotechniques spéciaux - Pieux Ausführung von Arbeiten im Spezialtiefbau - Bohrpfähle
forés
This draft amendment is submitted to CEN members for unique acceptance procedure. It has been drawn up by the Technical Committee
CEN/TC 288.
This draft amendment A1, if approved, will modify the European Standard EN 1536:2010. If this draft becomes an amendment, CEN
members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of this amendment
into the relevant national standard without any alteration.
This draft amendment 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-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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey 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
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2014 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 1536:2010/FprA1:2014 E
worldwide for CEN national Members.
Contents
Page
Foreword .3
1 Modifications to Clause 1, Scope .4
2 Modifications to Clause 2, Normative references .6
3 Modification to Clause 3, Terms and definitions .7
4 Modification to 6.1, Constituents .7
5 Modification to 6.3, Concrete .8
6 Modification to 6.5, Reinforcement .9
7 Modifications to 7.5, Reinforcement .9
8 Modification to 8.1, Construction tolerances . 10
9 Modifications to 8.4, Concreting and trimming . 10
10 Modification to 9.1, Construction controls . 11
11 Modification to 9.2, Bored pile testing . 11
12 Modification to Clause 10, Records . 11
13 Modification to Annex A . 11
14 Modification to Annex B . 13
15 Modification to Annex D . 13
Foreword
This document (EN 1536:2010/FprA1:2014) has been prepared by Technical Committee CEN/TC 288
“Execution of special geotechnical works”, the secretariat of which is held by AFNOR.
This document is currently submitted to the Unique Acceptance Procedure.
The general scope of TC 288 is the standardization of the execution procedures for geotechnical works
(including testing and control methods) and of the required material properties.
The Task Group CEN/TC 288/TG Amendments had been charged to amend EN 1536:2010, Execution of
special geotechnical work — Bored piles, and EN 1538:2010, Execution of special geotechnical work —
Diaphragm walls, in order to accord both standards with EN 206:2013, Concrete — Specification,
performance, production and conformity. For this purpose, the technical provisions on fresh concrete,
previously contained in 6.1, Constituents, and 6.3, Concrete, have been moved to the normative Annex D of
EN 206:2013.
The design, planning and execution of bored piles call for experience and knowledge in this specialized field.
The execution phase requires skilled and qualified personnel and the present standard cannot replace the
expertise of specialist contractor.
For design, this document is complemented by EN 1997-1, Eurocode 7: Geotechnical design ― Part 1:
General rules, and EN 1997-2, Eurocode 7 ― Geotechnical design ― Part 2: Ground investigation and
testing. Clause 7, Considerations, related to design of this European Standard expands on design only where
necessary (e.g. the detailing of reinforcement), but provides full coverage of the construction and supervision
requirements.
Concerning the acceptance of concrete on site, the concrete placement process, the curing and the quality
control measures to be taken during the execution of bored piles, this European Standard provides the
respective requirements which complement the general rules contained in EN 13670, Execution of concrete
structures.
1 Modifications to Clause 1, Scope
Replace Figure 1 with the following (better quality figure provided):
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Replace Figure 2 with the following (better quality figure provided):
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Replace Figure 3 with the following (better quality figure provided):
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Replace Figure 4 with the following (better quality figure provided):
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Replace Figure 5 with the following (better quality figure provided):
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Replace Figure 6 with the following (better quality figures provided):
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Replace Figure 7 with the following (better quality figures provided):
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2 Modifications to Clause 2, Normative references
Replace
"EN 206-1:2000, Concrete ― Part 1: Specification, performance, production and conformity" with
"EN 206:2013, Concrete Specification, performance, production and conformity".
Delete
"EN 197-1:2000, Cement ― Part 1: Composition, specifications and conformity criteria for common cements";
"EN 934-2, Admixtures for concrete, mortar and grout — Part 2: Concrete admixtures ― Definitions,
requirements, conformity, marking and labelling" and
"EN 10248 (all parts), Hot rolled sheet piling of non alloy steels
EN 10249 (all parts), Cold formed sheet piling of non alloy steels
EN 12620, Aggregates for concrete".
3 Modification to Clause 3, Terms and definitions
In 3.4, replace "concrete or grout" with "concrete, mortar or grout" and "Figure A.4" with "Figure A.5" to read:
"3.4
continuous flight auger pile
CFA-pile
fr pieu à la tarière continue creuse (CFA)
de Schneckenbohrpfahl
pile formed by means of a hollow stemmed continuous flight auger through the stem of which concrete, mortar
or grout is pumped as the auger is extracted
NOTE See Figure A.5.".
4 Modifications to 6.1, Constituents
Replace 6.1.4 with the following:
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6.1.4 Cement
6.1.4.1 Cements for bored piles are listed in EN 206:2013, Annex D.
6.1.4.2 The use of CEM II or CEM III cement or the partial replacement of CEM I ce
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