EN ISO 22477-10-2016 en Geotechnical investigation and testing - Testing of geotechnical structures - Part 10 Testing of piles rapid load testing《岩土工程勘察和岩土结构测试-第10部分 测试 测试桩快速荷载试验(I.pdf

1、BS EN ISO 22477-10:2016Geotechnical investigationand testing Testing ofgeotechnical structuresPart 10: Testing of piles: rapid load testing(ISO 22477-10:2016)BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS EN ISO 22477-10:2016 BRITISH STANDARDNational forewordThis

2、 British Standard is the UK implementation of EN ISO 22477-10:2016.The UK participation in its preparation was entrusted to Technical Committee B/526/3, Site investigation and ground testing.A list of organizations represented on this committee can be obtained on request to its secretary.This public

3、ation does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 84811 7 ICS 93.020 Compliance with a British Standard cannot confer immunity f

4、rom legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 October 2016.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 22477-10 October 2016 ICS

5、 93.020 English Version Geotechnical investigation and testing - Testing of geotechnical structures - Part 10: Testing of piles: rapid load testing (ISO 22477-10:2016) Reconnaissance et essais gotechniques - Essais de structures gotechniques - Partie 10: Essai des pieux: essai de charge rapide (ISO

6、22477-10:2016) Geotechnische Erkundung und Untersuchung - Prfung von geotechnischen Bauwerken und Bauwerksteilen - Teil 10: Pfahlprfungen: Schnellprfung mit axialer Druckbelastung (ISO 22477-10:2016) This European Standard was approved by CEN on 7 August 2016. CEN members are bound to comply with th

7、e 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 Managemen

8、t 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

9、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, N

10、etherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All

11、rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 22477-10:2016 EBS EN ISO 22477-10:2016EN ISO 22477-10:2016 (E) 3 European foreword This document (EN ISO 22477-10:2016) has been prepared by Technical Committee CEN/TC 341 “Geotechnical I

12、nvestigation and Testing”, the secretariat of which is held by BSI, in collaboration with Technical Committee ISO/TC 182 “Geotechnics“. 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 April 2017,

13、and conflicting national standards shall be withdrawn at the latest by April 2017. 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. Acc

14、ording 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, Former Yugoslav Republic of Macedonia, France, German

15、y, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 22477-10:2016 has been approved by CEN as EN ISO 22477-

16、10:2016 without any modification. BS EN ISO 22477-10:2016ISO 22477-10:2016(E)Foreword ivIntroduction v1 Scope . 12 Normative references 13 Terms, definitions and symbols 23.1 Terms and definitions . 23.2 Symbols . 34 Testing equipment 44.1 General . 44.2 Loading 44.3 Measurements . 55 Test procedure

17、 75.1 Preparation for testing . 75.2 Safety and integrity requirements . 85.2.1 People and equipment in the surrounding area . 85.2.2 Test pile 85.3 Preparation of the pile 85.4 General preparation for testing 95.5 Working pile integrity after testing . 96 Test results 97 Test reporting .10Annex A (

18、informative) Analysis of rapid load test results .12Bibliography .23 ISO 2016 All rights reserved iiiContents PageBS EN ISO 22477-10:2016ISO 22477-10:2016(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). Th

19、e work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-gov

20、ernmental, in liaison with ISO, also take part in the work. 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 i

21、n the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents 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).Attention is drawn to the p

22、ossibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO lis

23、t of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well

24、as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.ISO 22477-10 was prepared by the European Committee for Standardization (CEN) in collaboration with ISO Technical Committ

25、ee 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, published under the general title Geotechnical investigation and testing Testing of geotechnical structures, can be found on the ISO w

26、ebsite.iv ISO 2016 All rights reservedBS EN ISO 22477-10:2016ISO 22477-10:2016(E)IntroductionThis part of ISO 22477 outlines how a rapid load pile test is defined and specifies the equipment and testing procedures required. Informative, non-prescriptive guidance is included on the analysis of rapid

27、load pile test results required to determine mobilised or ultimate compressive resistance of a pile. ISO 2016 All rights reserved vBS EN ISO 22477-10:2016BS EN ISO 22477-10:2016Geotechnical investigation and testing Testing of geotechnical structures Part 10: Testing of piles: rapid load testing1 Sc

28、opeThis part of ISO 22477 establishes the specifications for the execution of rapid load pile tests in which a single pile is subject to an axial load in compression to measure its load-displacement behaviour under rapid loading and to allow an assessment of its measured compressive resistance (Rc,m

29、) and corresponding load-displacement behaviour.This part of ISO 22477 is applicable to piles loaded axially in compression.All pile types mentioned in EN 1536, EN 12699 and EN 14199 are covered by this part of ISO 22477.The tests in this part of ISO 22477 are limited to rapid load pile tests only.N

30、OTE 1 This part of ISO 22477 can be used in conjunction with EN 19971. Numerical values of partial factors for limit states from pile load tests to be taken into account in design are provided in EN 19971. For design to EN 19971, the results from rapid load pile testing will be considered equivalent

31、 to the measured compressive resistance, Rc,m, after being subject to appropriate analysis.NOTE 2 Guidance on analysis of the rapid load testing results to determine measured compressive resistance and corresponding load-displacement behaviour is given in Annex A.This part of ISO 22477 provides spec

32、ifications for the following:a) investigation tests, whereby a sacrificial test pile is loaded up to ultimate limit state;b) control tests, whereby the pile is loaded up to a specified load in excess of the serviceability limit state.NOTE 3 Generally, an investigation test focuses on general knowled

33、ge of a pile type; a control test focuses on one specific application of a pile.2 Normative referencesThe 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. F

34、or undated references, the latest edition of the referenced document (including any amendments) applies.There are no normative references in this document.INTERNATIONAL STANDARD ISO 22477-10:2016(E) ISO 2016 All rights reserved 1BS EN ISO 22477-10:2016ISO 22477-10:2016(E)3 Terms, definitions and sym

35、bols3.1 Terms and definitionsFor the purposes of this document, the terms and definitions given in EN 1997-1 and the following apply.ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at http:/www.electropedia.org/ ISO Onl

36、ine browsing platform: available at http:/www.iso.org/obp3.1.1trial pilepile installed before the commencement of the main piling works or a specific part of the works for the purpose of investigating the suitability of the chosen type of pile and for confirming its design, dimensions and bearing re

37、sistanceNote 1 to entry: The trial pile might be sacrificed to achieve ultimate limit state.3.1.2working pilepile that will form part of the foundation of the structure3.1.3test pilepile to which loads are applied to determine the resistance deformation characteristics of the pile and the surroundin

38、g groundNote 1 to entry: A test pile can be a trial pile (3.1.1), or a working pile (3.1.2).3.1.4pile loadaxial compressive load (or force) applied to the head of the pile during the test3.1.5rapid loadforce applied to the pile in a continuously increasing and then decreasing manner of a suitable du

39、ration (typically less than 1 s) relative to the natural period of the pile which causes the pile to compress over the full length and translate approximately as a unit during the full loading period3.1.6maximum compressive loadmaximum axial compressive load (or force) applied to the pile during the

40、 test, generally defined prior to the test3.1.7rapid load testpile loading test where a pile is subjected to chosen axial rapid load (3.1.5) at the pile head for the analysis of its capacity3.1.8ultimate measured compressive resistance of a pilecorresponding state in which the pile foundation displa

41、ces significantly with negligible increase of resistanceNote 1 to entry: Where it is difficult to define an ultimate limit state from a load settlement plot showing a continuous slight increase, a settlement of the pile top equal to 10 % of the pile base diameter should be adopted as the “failure” c

42、riterion.2 ISO 2016 All rights reservedBS EN ISO 22477-10:2016ISO 22477-10:2016(E)Note 2 to entry: The maximum compressive resistance measured during a rapid load test (3.1.7) is not necessarily equal to the ultimate measured compressive resistance of a pile. The measured resistance obtained from ra

43、pid load testing must be analysed to remove the effects of inertia and soil dependent behaviour before it can be considered equivalent to the ultimate measured compressive resistance as outlined in Annex A.3.1.9design compressive static resistance of a pileultimate compressive static resistance of a

44、 pile that shall be determined prior to load testing to allow specification of appropriate magnitude rapid load test (3.1.7) cycles3.1.10equivalent diameterdiameter of an equivalent circle of which the area equals the area of the relevant pile sectionNote 1 to entry: The equivalent diameter for a ci

45、rcular pile is the outer diameter of the pile, for a square pile the diameter which gives the same area as the square pile (as long as the longest side is smaller than 1,5 times the shortest side) is the equivalent diameter.3.1.11minimum reference separation distancedistance which separates a statio

46、nary reference point from a point that will be significantly displaced by the testing methodNote 1 to entry: Only stationary points can be used for reference of displacement (3.1.12) measurement devices. Displacement measuring systems can be placed on the soil outside the reference distance without

47、isolating (displacement compensating) measures.3.1.12displacementaxial displacement of the pile head measured during testing3.2 Symbolsa pile accelerationcpvelocity of the stress wave in the test pilecsvelocity of the shear wave in the groundD diameter or equivalent diameter of the test pileFcpile l

48、oad in compressionFc,maxmaximum compressive loadg acceleration due to gravityL total length of the test pileRc,mmeasured ultimate resistance of the ground in the test, or measured geotechnical resistance of the pilerrefminimum reference separation distancet timetfduration of the rapid load applicati

49、ontgduration of the falling of the mass for a falling mass equipmentw pile displacement ISO 2016 All rights reserved 3BS EN ISO 22477-10:2016ISO 22477-10:2016(E)4 Testing equipment4.1 GeneralThe equipment should generate a rapid load at the pile head where the duration of the load fulfils Formula (1):10 1000maximum test loadLinearity 5 kHzlinearity up to 50 g ISO 2016 All rights reserved 5BS EN ISO 22477-10:2016ISO 22477-10:2016(E)Table 4 Rapid load test transducer and signal processing displacement requirementsParameter RequirementRan