1、BRITISH STANDARD BS EN ISO22476-3:2005Geotechnical investigation and testing Field testing Part 3: Standard penetration testICS 93.020nullnull nullnullnullnullnullnullnull nullnullnullnullnullnullnull nullnullnull nullnullnullnullnullnullnullnullnullnull nullnullnullnullnullnull nullnull nullnullnul
2、lnullnullnullnullnullnull nullnull nullnullnullnullnullnullnullnullnull nullnullnull+A1:2011IncorporatingcorrigendumFebruary 2007 National forewordThis British Standard is the UK implementation of EN ISO 22476-3:2005+A1:2011. It is identical to ISO 22476-3:2005, incorporating amendment 1:2011. It su
3、persedes BS EN ISO 22476-3:2005, which is withdrawn.The start and finish of text introduced or altered by amendment is indicated in the text by tags. Tags indicating changes to ISO text carry the number of the ISO amendment. For example, text altered by ISO amendment 1 is indicated by !“.The UK part
4、icipation in its preparation was entrusted by Technical Committee B/526, Geotechnics, to Subcommittee B/526/3, Site investigation and ground testing.A list of organizations represented on this Subcommittee can be obtained on request to its secretary.The test in this standard is included in BS 1377-9
5、:1990 (subclause 3.3) which is now withdrawn. Its use is covered in BS 5930:1999, clause 25.2, where there is reference to BS 1377-9:1990, clause 3.3. BS EN ISO 22476-3:2005+A1:2011 should now be used instead.It should be noted that the new test method requires a calibration of the equipment for ene
6、rgy ratio (ratio of the actual energy to the theoretical energy of the hammer).This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.B
7、S EN ISO 22476-3:2005+A1:2011This British Standard waspublished under the authorityof the Standards Policy andStrategy Committeeon 30 January 2006 The British StandardsInstitution 2012Amendments/corrigenda issued since publicationAmd. No. Date Comments 16931Corrigendum No. 128 February 2007 Revision
8、 of National foreword31 January 2012 Implementation of ISO amendment 1:2011 with CEN endorsement A1:2011ISBN 978 0 580 74914 8EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 22476-3:2005+A1ICS 93.020English versionGeotechnical investigation and testing - Field testing - Part 3:Standard penetra
9、tion test (ISO 22476-3:2005)Reconnaissance et essais gotechniques - Essais en place- Partie 3 : Essais de pntration au carottier (ISO 22476-3:2005)Geotechnische Erkundung und Untersuchung -Felduntersuchungen - Teil 3: Standard penetration test(ISO 22476-3:2005)This European Standard was approved by
10、CEN on 4 November 2004.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards
11、 may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Ce
12、ntral Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Pol
13、and, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2005 CEN All rights of exploitation in any form and by any means re
14、servedworldwide for CEN national Members.Ref. No. EN ISO 22476-3:2005: ENovember 2011Foreword This document (EN ISO 22476-3:2005) has been prepared by Technical Committee CEN/TC341 “Geotechnicalinvestigation and testing”, the secretariat ofwhich is held by DIN, in collaboration with Technical Commit
15、teeISO/TC 182 “Geotechnics”. This European Standard shall be given the status of a national standard, either by publication of an identical text orby endorsement, at the latest by July2005, and conflicting national standards shall be withdrawn at the latest byJuly 2005. EN ISO 22476 Geotechnical inv
16、estigation and testing -Field testing has the following parts: Part 1: Electrical cone and piezocone penetration tests Part 2: Dynamic probing Part 3: Standard penetration test Part 4:Menard pressuremeter test Part 5: Flexible dilatometer test Part 6: Self-boring pressuremeter test Part 7: Borehole
17、jack test Part 8: Full displacement pressuremeter test Part 9: Field vane test Part 10: Weight sounding test Part 11: Flat dilatometer test Part 12: Lefranc permeability test Part 13: Water pressure tests in rockAccording to the CEN/CENELEC Internal Regulations, the national standards organizations
18、of the followingcountries are bound to implement this European Standard : Austria, Belgium, Cyprus, Czech Republic, Denmark,Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,Latvia, Lithuania, Luxembourg, Malta,Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spai
19、n, Sweden, Switzerland and United Kingdom. BS EN ISO 22476-3:2005+A1:2011 EN ISO 22476-3:2005+A1:2011 (E)Foreword to amen A1 This document (EN ISO 22476-3:2005/A1:2011) has been prepared by Technical Committee CEN/TC 341 “Geotechnical Investigation and Testing“, the secretariat of which is held by E
20、LOT, 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 May 2012, and conflicting national standards shall be withdrawn at the late
21、st by May 2012. 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. According to the CEN/CENELEC Internal Regulations, the national standa
22、rds organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Po
23、land, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. mentdBS EN ISO 22476-3:2005+A1:2011 EN ISO 22476-3:2005+A1:2011 (E)This page deliberately set blankBS EN ISO 22476-3:2005+A1:2011 EN ISO 22476-3:2005+A1:2011 (E)Reference numberISO 22476-3:2005(E)INTERNAT
24、IONAL STANDARD ISO22476-3First edition2005-01-15Geotechnical investigation and testing Field testing Part 3: Standard penetration testReconnaissance et essais gotechniques Essais en place Partie 3: Essai de pntration au carottierBS EN ISO 22476-3:2005+A1:2011 EN ISO 22476-3:2005+A1:2011 (E)ii BS EN
25、ISO 22476-3:2005+A1:2011 EN ISO 22476-3:2005+A1:2011 (E)Contents page 1 Scope 12Normative references 13Terms and definitions . 14Equipment 25Test Procedure.46Test results.57Reporting 5Annex A (informative) Correction factors 8A.1Energydelivered to the drive rods.8A.2Energylosses due to the length of
26、 rods . 8A.3Other correction factors 8A.4Effect of overburden pressure in sands 9A.5Use of the correction factors9Annex B (informative) Recommended method to measure the actual energy 11B.1 Principle1 1B.2 Equipment 1 1B.3 Measurements1 1B.4 Calculation1 2Bibliography1 4iiiForeword i vBS EN ISO 2247
27、6-3:2005+A1:2011 EN ISO 22476-3:2005+A1:2011 (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 through ISO technical committees. Each m
28、ember bodyinterested in a subject for which a technical committee has beenestablished has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International El
29、ectrotechnical Commission (IEC) on allmatters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.The main task of technical committees is to prepare International Standards. Draft International Standardsadopte
30、d by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
31、 rights. ISO shall not be held responsible for identifying any or all such pa tent rights. ISO 22476-3 was prepared by the European Committee for Standardization (CEN) in collaboration withTechnical Committee ISO/TC182, Geotechnics , Subcommittee SC 1, Geotechnical investigation and testing, in acco
32、rdance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).ISO 22476 consists of the following parts, under the general title Geotechnical investigation and testing Field testing: Part 1: Electrical cone and piezocone penetration tests Part 2: Dynamic probing Part 3: S
33、tandard penetration test Part4: Menard pressuremeter test Part 5: Flexible dilatometer test Part 6: Self-boring pressuremeter testPart 7: Borehole jack testPart 8: Full displacement pressuremeter test Part 9: Field vane test Part 10: Weight sounding test Part 11: Flat dilatometer testPart 12: Lefran
34、c permeability test Part 13: Water pressure test in rock Part 14: Pumping testsiv BS EN ISO 22476-3:2005+A1:2011 EN ISO 22476-3:2005+A1:2011 (E)11 Scope Thestandardpenetration test aimsto determine the resistanceofsoils at the base of a borehole to the dynamicpenetration of a split barrelsampler and
35、 the recoveringofdisturbed samples for identification purposes(SPT).Ingravellysoils and in softrocksa solid cone isalsobe used (SPT(C).Thestandardpenetrationtestisused mainlytoassess the strength anddeformation parametersofcohesionless soils,butsomevaluabledatamayalsobeobtainedinothersoiltypes.Theba
36、sis of the test consists in driving a sampler by droppinga hammerof63,5 kg mass on to an anvilordrivehead from a height of 760mm. Thenumber of blows ( N ) necessary to achieve a penetration of the sampler of300 mm(afteritspenetration undergravityandbelow a seating drive)isthe penetration resistance.
37、 2 Normative referencesThefollowing referenced documents are indispensable forthe application ofthisdocument. Fordated references,onlythe edition citedapplies. For undated references,the latestedition of the referenced document (includingany amendments)applies.3 Terms and definitions For thepurposes
38、 ofthisdocument,thefollowingtermsanddefinitionsapply.3.1 anvil or driveheadthatportion of the drive-weight assemblythat the hammer strikes and through which the hammerenergypassesintothedrive rods3.2 hammerportionofthe drive-weight assembly consisting of the63,5 kgimpact weight whichissuccessively l
39、ifted and dropped to provide the energythat accomplishesthe penetration and sampling 3.3 height of fall freefallof thehammerafterbeingreleased3.4 drive-weight assemblydevice consistingofthehammer,the hammerfall guide, the anviland the dropsystem3.5 driverodsrodsthatconnectthedrive-weightassemblytoth
40、esampler 3.6 actual energyE measenergy delivered by thedrive-weight assembly intothe driverod, immediately belowthe anvil, asmeasuredBS EN ISO 22476-3:2005+A1:2011 EN ISO 22476-3:2005+A1:2011 (E)This part of ISO 22476 deals with the equipment requirements for, execution of and reporting on the penet
41、ration test to complement direct investigations (e.g. ISO 22475-1). NOTE This part of ISO 22476 fulfils the requirements for standard penetration testing as part of geotechnical and testing in accordance with EN 1997-1 and EN 1997-2.!“ISO 22475-1:2006, Geotechnical investigation and testing Sampling
42、 methods and groundwater Part 1: Technical principles for execution!“standardinvestigationmeasurements2 3.7 theoretical energyE theorenergyascalculatedforthe drive weight assembly: E theor =m g h where m isthe massofthe hammer;g isthe accelerationdue togravity;h isthe falling height ofthe hammer. 3.
43、8 energyratioE rratiooftheactualenergyE meas and thetheoretical energy E theor ofthe hammerexpressed inpercentage 3.9 N -valuenumberofblows requiredto drive the samplerfora testdrive of300mmfollowing theseating drive 4 Equipment 4.1 Drilling equipmentThedrillingequipmentshall becapableof providingac
44、leanholetoensurethatthe penetrationtestisperformedonessentiallyundisturbedsoil.Theareathat is exposed inthe base ofthe borehole prior to testing caninfluence the resultsand consequentlythe borehole diameter shall always be reported. A significant effect on the result canbegin to occurwhen the diamet
45、eris150mmormore. 4.2 Sampler Thesteel split barrelsampler shallhave the dimensions indicated in Figure1 and shallbe providedwitha non-returnvalve withsufficientclearancetopermitthefreeflowofwater or mudduringdriving.Theinner diameter of the sampler canbeupto 3 mm larger than that of the shoe to allo
46、wfor a liner.In gravellysand,asolid60 coneinsteadofthestandardshoecanbeused.Inthis casethetestshallbenotedas SPT(C).BS EN ISO 22476-3:2005+A1:2011 EN ISO 22476-3:2005+A1:2011 (E)3Key1 Drive shoe 2 Split barrel 3 Coupling 4 Non return valve (ball diameter: recommended 25 mm; ball seating: recommended
47、 22 mm)5 Ball retaining pins6 Four vent holes (min diameter 12 mm) x Length of the drive shoe Figure 1 Longitudinal cross section of an SPT sampler without a provision for a liner (dimensions inmm) 4.3 Drive rods The drive rods shall have a stiffness that prevents buckling during driving.Rods with a
48、 mass of more than 10,0 kg/m shall not be used.Only straight rods shall be used and periodic checks shall be made on site, including connections betweenconsecutive rods. When measured over the whole length of each rod the relative deflection shall not be greaterthan 1 in 1 200.BS EN ISO 22476-3:2005
49、+A1:2011 EN ISO 22476-3:2005+A1:2011 (E)that of an AW rod for tests less than 20 m depth, and of a BW rod for greater depth. For definitions of AW and BW rods, see ISO 22475-1:2006, Table C.1. The rod stiffness should be at least!“The straightness shall be checked by applying one of the following procedures. Holding the rod vertically and rotating it. If the rod appears to wobble, the straightness is not acceptable. Rolling the rod on a plane surface. If the rod appears to wobble, the straightness is not acceptable.
