EN 1536-2010 en Execution of special geotechnical work - Bored piles (Incorporates Amendment A1 2015)《专门的岩土工程的实施 管桩》.pdf

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1、BSI Standards PublicationBS EN 1536:2010Execution of specialgeotechnical works BoredpilesBS EN 1536:2010+A1:2015BS EN 1536:2010+A1:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 1536:2010+A1:2015. It supersedes BS EN 1536:2010 which is withdrawn.The start

2、and finish of text introduced or altered by amendment is indicated in the text by tags. Tags indicating changes to CEN text carry the number of the CEN amendment. For example, text altered by CEN amendment A1 is indicated by .The UK participation in its preparation was entrusted to Technical Committ

3、ee B/526, Geotechnics.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2015.

4、Published by BSI Standards Limited 2015ISBN 978 0 580 87596 0ICS 93.020Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 September 2010.Amendments/corrigenda is

5、sued since publicationDate Text affected31 July 2015 Implementation of CEN amendment A1:2015EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1536:2010+A1 June 2015 ICS 93.020 Supersedes EN 1536:2010English Version Execution of special geotechnical work - Bored piles Excution des travaux gotechni

6、ques spciaux - Pieux fors Ausfhrung von Arbeiten im Spezialtiefbau - Bohrpfhle This European Standard was approved by CEN on 2 July 2010 and includes Amendment 1 approved by CEN on 17 April 2015. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions

7、 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 t

8、hree 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

9、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

10、, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved wor

11、ldwide for CEN national Members. Ref. No. EN 1536:2010+A1:2015 EEN 1536:2010+A1:2015 (E) 2 Contents Page Foreword 4 1 Scope 5 2 Normative references . 10 3 Terms and definitions 11 4 Information needed for the execution of the work 16 4.1 General . 16 4.2 Special features 17 5 Geotechnical investiga

12、tion 18 5.1 General . 18 5.2 Specific requirements 18 6 Materials and products 19 6.1 Constituents 19 6.1.1 General . 19 6.1.2 Bentonite . 19 6.1.3 Polymers 20 6.1.4 Cement . 20 6.1.5 Aggregates 20 6.1.6 Water 20 6.1.7 Additions . 20 6.1.8 Admixtures 20 6.2 Support fluids 20 6.2.1 Bentonite suspensi

13、ons 20 6.2.2 Polymer solutions . 22 6.3 Concrete 22 6.3.1 General . 22 6.3.2 Aggregates 23 6.3.3 Cement contents . 23 6.3.4 Water/cement ratio 23 6.3.5 Admixtures 23 6.3.6 Fresh concrete 23 6.3.7 Sampling and testing on site . 24 6.4 Grout 24 6.5 Reinforcement . 25 6.6 Additional inserted products .

14、 25 7 Considerations related to design 25 7.1 General . 25 7.2 Piles forming a wall 26 7.3 Excavation . 27 7.4 Precast concrete elements 27 7.5 Reinforcement . 27 7.5.1 General . 27 7.5.2 Longitudinal reinforcement . 28 7.5.3 Transverse reinforcement 28 7.6 Steel tubes and profile elements . 29 7.7

15、Minimum and nominal cover . 29 8 Execution . 30 8.1 Construction tolerances 30 BS EN 1536:2010+A1:2015EN 1536:2010+A1:2015 (E)EN 1536:2010+A1:2015 (E) 2 Contents Page Foreword 4 1 Scope 5 2 Normative references . 10 3 Terms and definitions 11 4 Information needed for the execution of the work 16 4.1

16、 General . 16 4.2 Special features 17 5 Geotechnical investigation 18 5.1 General . 18 5.2 Specific requirements 18 6 Materials and products 19 6.1 Constituents 19 6.1.1 General . 19 6.1.2 Bentonite . 19 6.1.3 Polymers 20 6.1.4 Cement . 20 6.1.5 Aggregates 20 6.1.6 Water 20 6.1.7 Additions . 20 6.1.

17、8 Admixtures 20 6.2 Support fluids 20 6.2.1 Bentonite suspensions 20 6.2.2 Polymer solutions . 22 6.3 Concrete 22 6.3.1 General . 22 6.3.2 Aggregates 23 6.3.3 Cement contents . 23 6.3.4 Water/cement ratio 23 6.3.5 Admixtures 23 6.3.6 Fresh concrete 23 6.3.7 Sampling and testing on site . 24 6.4 Grou

18、t 24 6.5 Reinforcement . 25 6.6 Additional inserted products . 25 7 Considerations related to design 25 7.1 General . 25 7.2 Piles forming a wall 26 7.3 Excavation . 27 7.4 Precast concrete elements 27 7.5 Reinforcement . 27 7.5.1 General . 27 7.5.2 Longitudinal reinforcement . 28 7.5.3 Transverse r

19、einforcement 28 7.6 Steel tubes and profile elements . 29 7.7 Minimum and nominal cover . 29 8 Execution . 30 8.1 Construction tolerances 30 EN 1536:2010+A1:2015 (E) 3 8.1.1 Geometrical tolerances . 30 8.1.2 Installation tolerances for reinforcement cage 31 8.1.3 Tolerances for trimming . 32 8.2 Exc

20、avation 32 8.2.1 General . 32 8.2.2 Methods and tools . 34 8.2.3 Excavations supported by casings . 34 8.2.4 Excavations supported by fluids . 36 8.2.5 Boring with continuous flight augers 36 8.2.6 Unsupported excavation. 37 8.2.7 Enlargements . 38 8.3 Reinforcement . 38 8.3.1 General . 38 8.3.2 Joi

21、nts 38 8.3.3 Bending of reinforcement . 38 8.3.4 Assembly of cages 39 8.3.5 Spacers . 39 8.3.6 Installation 40 8.4 Concreting and trimming 40 8.4.1 General . 40 8.4.2 Concreting in dry conditions . 41 8.4.3 Concreting in submerged conditions 42 8.4.4 Extraction of casings 43 8.4.5 Permanent casings

22、or linings 44 8.4.6 Concreting of continuous flight auger piles . 44 8.4.7 Prepacked piles . 45 8.4.8 Loss of immersion of tremie pipe or casing . 45 8.4.9 Precast concrete elements and steel tubes or profiles . 46 8.4.10 External grouting of bored piles 46 8.4.11 Trimming 47 8.5 Pile walls 47 9 Sup

23、ervision, testing and monitoring . 48 9.1 Construction controls . 48 9.2 Bored pile testing 49 9.2.1 General . 49 9.2.2 Pile load tests 49 9.2.3 Integrity tests . 50 10 Records 50 11 Special Requirements . 53 Annex A (informative) Glossary 55 Annex B (informative) Examples for details and frequencie

24、s for monitoring and testing 64 Annex C (informative) Sample records . 69 Annex D (informative) Obligation of the provisions 76 Bibliography 82 BS EN 1536:2010+A1:2015EN 1536:2010+A1:2015 (E)EN 1536:2010+A1:2015 (E) 4 Foreword This document (EN 1536:2010+A1:2015) has been prepared by Technical Commi

25、ttee CEN/TC 288 “Execution of special geotechnical works”, 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 December 2015, and conflicting national standa

26、rds shall be withdrawn at the latest by December 2015. 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 !EN 15

27、36:2010“. This document includes Amendment 1 approved by CEN on 2015-04-17. The start and finish of text introduced or altered by amendment is indicated in the text by tags !“. The general scope of TC 288 is the standardisation of the execution procedures for geotechnical works (including testing an

28、d control methods) and of the required material properties. WG15 has been charged to revise EN 1536:1999, with the subject area of bored piles, including barrettes, but not “micro piles“ of diameter less than 0,3 m. The design, planning and execution of bored piles call for experience and knowledge

29、in this specialised field. The execution phase requires skilled and qualified personnel and the present standard cannot replace the expertise of specialist contractor. The document has been prepared to complement EN 1997-1, Eurocode 7: Geotechnical design Part 1: General rules and EN 1997-2, Eurocod

30、e 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. !The amen

31、dment became necessary to accord the Standard EN 1536:2010 with EN 206:2013, Concrete Specification, performance, production and conformity. EN 206:2013 has been revised to contain also the specific requirements for concrete for applications for special geotechnical works, making redundant respectiv

32、e provisions in EN 1536 (e.g. 6.1, 6.3 and 8.8). Full according with EN 13670, Execution of concrete structures is however still pending. EN 1536:2010+A1:2015 therefore still contains specific requirements for bored piles as a concrete structure, such as the detailing of the reinforcement, the concr

33、ete placement and the supervision of concreting process which are complementing the provisions of EN 13670. In addition, some editorial corrections were made in this amended Standard.“ According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries

34、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,

35、Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 1536:2010+A1:2015EN 1536:2010+A1:2015 (E)EN 1536:2010+A1:2015 (E) 4 Foreword This document (EN 1536:2010+A1:2015) has been prepared by Technical Committee CEN/TC 288 “Execution of special geotechn

36、ical works”, 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 December 2015, and conflicting national standards shall be withdrawn at the latest by Decemb

37、er 2015. 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 !EN 1536:2010“. This document includes Amendment 1 a

38、pproved by CEN on 2015-04-17. The start and finish of text introduced or altered by amendment is indicated in the text by tags !“. The general scope of TC 288 is the standardisation of the execution procedures for geotechnical works (including testing and control methods) and of the required materia

39、l properties. WG15 has been charged to revise EN 1536:1999, with the subject area of bored piles, including barrettes, but not “micro piles“ of diameter less than 0,3 m. The design, planning and execution of bored piles call for experience and knowledge in this specialised field. The execution phase

40、 requires skilled and qualified personnel and the present standard cannot replace the expertise of specialist contractor. The document has been prepared to complement EN 1997-1, Eurocode 7: Geotechnical design Part 1: General rules and EN 1997-2, Eurocode 7 Geotechnical design Part 2: Ground investi

41、gation 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. !The amendment became necessary to accord the Standard

42、EN 1536:2010 with EN 206:2013, Concrete Specification, performance, production and conformity. EN 206:2013 has been revised to contain also the specific requirements for concrete for applications for special geotechnical works, making redundant respective provisions in EN 1536 (e.g. 6.1, 6.3 and 8.8

43、). Full according with EN 13670, Execution of concrete structures is however still pending. EN 1536:2010+A1:2015 therefore still contains specific requirements for bored piles as a concrete structure, such as the detailing of the reinforcement, the concrete placement and the supervision of concretin

44、g process which are complementing the provisions of EN 13670. In addition, some editorial corrections were made in this amended Standard.“ According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard:

45、 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,

46、Sweden, Switzerland, Turkey and the United Kingdom. EN 1536:2010+A1:2015 (E) 5 1 Scope 1.1 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

47、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 standar

48、d the term pile is used for circular cross-section structure and the term barrette for other shapes. Both are bored piles. ! “ ! “ Key Key D Shaft diameter L Barrette length W Barrette thickness A Cross-sectional area of the shaft Figure 1 Bored pile with circular cross-section Figure 2 Bored pile w

49、ith non circular cross-section (barrettes) 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. BS EN 1536:2010+A1:2015EN 1536:2010+A1:2015 (E)EN 1536:2010+A1:2015 (E) 6 ! “ ! “ Key Key D Shaft diameter n Rake DBBase enlargement diameter DEShaft enlargement diameter Figure 3 Examples