1、BRITISH STANDARD BS EN ISO22476-2:2005Incorporating corrigendum Geotechnical investigation and testing Field testing Part 2: Dynamic probingICS 93.020nullnull nullnullnullnullnullnullnull nullnullnullnullnullnullnull nullnullnull nullnullnullnullnullnullnullnullnullnull nullnullnullnullnullnull null
2、null nullnullnullnullnullnullnullnullnull nullnull nullnullnullnullnullnullnullnullnull nullnullnull+A1:2011February 2007National forewordThis British Standard is the UK implementation of EN ISO 22476-2:2005+A1:2011. It is identical with ISO 22476-2:2005 incorporating amendment 1:2011. It supersedes
3、 BS EN ISO 22476-2:2005, which is withdrawn. The 2005 publication of BS EN 22476-2 resulted in the partial supersession of BS 5930:1999 and BS 1377-9:1990, which have since been amended to withdraw conflicting information.The start and finish of text introduced or altered by amendment is indicated i
4、n 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 participation in its preparation was entrusted by Technical Committee B/526, Geotechnics, to Subcommittee B/526/3, Site investigation
5、and ground testing.A list of organizations represented on B/526/3 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.Compliance with a British Standard cannot confer im
6、munity from legal obligations.BS EN ISO 22476-2:2005+A1:2011This British Standard waspublished under the authorityof the Standards Policy andStrategy Committeeon 30 January 2006 The British StandardsInstitution 2012ISBN 978 0 580 74913 1Amendments/corrigenda issued since publicationAmd. No. Date Com
7、ments 16932Corrigendum No. 128 February 2007 Revision of National foreword31 January 2012 Implementation of ISO amendment 1:2011 with CEN endorsement A1:2011EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 22476-2:2005+A1ICS 93.020English versionGeotechnical investigation and testing - Field te
8、sting - Part 2:Dynamic probing (ISO 22476-2:2005)Reconnaissance et essais gotechniques - Essais en place- Partie 2: Essai de pntration dynamique (ISO 22476-2:2005)Geotechnische Erkundung und Untersuchung -Felduntersuchungen - Teil 2: Rammsondierungen (ISO22476-2:2005)This European Standard was appro
9、ved by 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 nationalst
10、andards 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
11、 the Central 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, Norw
12、ay, Poland, 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 m
13、eans reservedworldwide for CEN national Members.Ref. No. EN ISO 22476-2:2005: ENovember 2011Foreword This document (EN ISO 22476-2:2005) has been prepared by Technical Committee CEN/TC341 “Geotechnicalinvestigation and testing”, the secretariat ofwhich is held by DIN, in collaboration with Technical
14、 CommitteeISO/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 Geotechni
15、cal investigation 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:Mnard pressuremeter test Part 5: Flexible dilatometer test Part 6: Self-boring pressuremeter test Part 7: Bor
16、ehole 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: Mechanical cone penetration test Part 13: Plate loadingtestAccording to the CEN/CENELEC Internal Regulations, the national standards organization
17、s 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, Sp
18、ain, Sweden, Switzerland and United Kingdom. Foreword to amendment A1 This document (EN ISO 22476-2:2005/A1:2011) has been prepared by Technical Committee CEN/TC 341 “Geotechnical Investigation and Testing“, the secretariat of which is held by ELOT, in collaboration with Technical Committee ISO/TC 1
19、82 “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 latest by May 2012. Attention is drawn to the possibility t
20、hat 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 standards organizations of the following countries are bound
21、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, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Swe
22、den, Switzerland and the United Kingdom. BS EN ISO 22476-2:2005+A1:2011 EN ISO 22476-2:2005+A1:2011 (E)Reference numberISO 22476-2:2005(E)INTERNATIONAL STANDARD ISO22476-2First edition2005-01-15Geotechnical investigation and testing Field testing Part 2: Dynamic probingReconnaissance et essais gotec
23、hniques Essais en place Partie 2: Essai de pntration dynamique BS EN ISO 22476-2:2005+A1:2011 EN ISO 22476-2:2005+A1:2011 (E)ii BS EN ISO 22476-2:2005+A1:2011 EN ISO 22476-2:2005+A1:2011 (E)Contents page 1Scope 12Normative references 13Terms and definitions . 14Equipment 35Test procedure.66Test resu
24、lts.87Reporting. .8Annex A (informative) Summary log for dynamic probing.1 1Annex B (informative) Record of measured values and test results for dynamic probing 12Annex C (informative) Recommended method to measure the actual energy 13Annex D (informative) Geotechnical and equipment influences on th
25、e dynamic probing results16Annex E (informative) Interpretation of test results by using the dynamic point resistance.26Bibliography3 0iiiForeword i vBS EN ISO 22476-2:2005+A1:2011 EN ISO 22476-2:2005+A1:2011 (E)Foreword ISO (the International Organization for Standardization) is a worldwide federat
26、ion of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member bodyinterested in a subject for which a technical committee has beenestablished has the right to be represented on that committee.
27、 International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on allmatters of electrotechnical standardization. International Standards are drafted in accordance wit
28、h the rules given in the ISO/IEC Directives, Part 2.The main task of technical committees is to prepare International Standards. Draft International Standardsadopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval
29、 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 rights. ISO shall not be held responsible for identifying any or all such pa tent rights. ISO 22476-2 was prepared by the European Comm
30、ittee for Standardization (CEN) in collaboration withTechnical Committee ISO/TC182, Geotechnics , Subcommittee SC 1, Geotechnical investigation and testing, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).ISO 22476 consists of the following parts, und
31、er the general title Geotechnical investigation and testing Field testing: Part 1: Electrical cone and piezocone penetration tests Part 2: Dynamic probing Part 3: Standard penetration test Part4: Menard pressuremeter test Part 5: Flexible dilatometer test Part 6: Self-boring pressuremeter testPart 7
32、: Borehole jack testPart 8: Full displacement pressuremeter test Part 9: Field vane test Part 10: Weight sounding test Part 11: Flat dilatometer testPart 12: Lefranc permeability test Part 13: Water pressure test in rock Part 14: Pumping testsiv BS EN ISO 22476-2:2005+A1:2011 EN ISO 22476-2:2005+A1:
33、2011 (E)11 Scope This document covers the determination of the resistance of soils and soft rocksinsituto the dynamic penetrationof a cone. A hammerofa given mass and given height of fall is used to drive the cone. Thepenetration resistanceis defined as the number of blows required to drivethe cone
34、over a defineddistance. A continuous recordisprovided with respect to depth but no samplesare recovered. Four proceduresareincluded,coveringawiderange ofspecificworkper blow: dynamicprobing light(DPL):testrepresentingthelowerendofthemassrangeofdynamicequipment; dynamicprobing medium (DPM):testrepres
35、entingthe mediummassrangeofdynamicequipment; dynamicprobing heavy(DPH):testrepresentingthemediumtoveryheavymassrangeofdynamicequipment; dynamicprobing super heavy(DPSH): testrepresenting the upper end of the mass range of dynamicequipment. Thetestresults of this document are speciallysuitedfor the q
36、ualitative determination of a soil profile together withdirectinvestigations (e.g.sampling according to ISO22475-1 ) or as a relative comparison of other in situ tests.They mayalsobeused forthe determinationofthe strengthand deformationpropertiesofsoils,generally of thecohesionless type but also pos
37、sibly in fine-grained soils,through appropriate correlations.The results canalsobe used to determine thedepth to verydense ground layerse.g. to determine the lengthofend bearingpiles,and todetect very loose, voided,back-filledorinfilled ground.2 Normative referencesThefollowing referenced documents
38、are indispensable forthe application ofthisdocument. Fordated references,onlythe edition citedapplies. For undated references,the latestedition of the referenced document (includingany amendments)applies.EN 10204, Metallic products Types of inspection documents3 Terms and definitions For thepurposeo
39、fthisdocument,thefollowingtermsanddefinitionsapply.3.1 dynamic penetrometerconeanddriverods 3.2 dynamic probing equipment penetrometerand allequipment necessaryto drive the penetrometer! “This part of ISO 22476 deals with the equipment requirements for, execution of and reporting on dynamic probing.
40、 NOTE This part of ISO 22476 fulfils the requirements for dynamic probing as part of geotechnical according to EN 1997-1 and EN 1997-2. investigation and testing!“ISO 22475-1, Geotechnical investigation and testing Sampling methods and groundwater Part 1: Technical principles for execution measureme
41、nts!“BS EN ISO 22476-2:2005+A1:2011 EN ISO 22476-2:2005+A1:2011 (E)2 3.3 anvil or drivehead portion ofthe drive-weightassembly that the hammerstrikes and through which thehammerenergy passesinto the driverods3.4 cushion; damper placed upon the anvil tominimise damage to the equipment 3.5 hammerporti
42、on ofthe drive-weight assembly whichis successively lifted and dropped to provide the energy thataccomplishesthepenetrationofthecone3.6 height of fall freefallof thehammerafterbeingreleased3.7 drive-weight assemblydevice consistingofthehammer,the hammerfall guide, the anviland the dropsystem3.8 driv
43、erodsrodsthatconnectthedrive-weightassemblytothecone3.9 conepointed probe ofstandard dimensionsused to measure theresistance topenetration (see Figure 1)3.10 actual energy; drivingenergyE measenergy delivered by thedrive-weight assembly intothe driverod immediately belowthe anvil,asmeasured3.11 theo
44、retical energyE theorenergyascalculatedforthe drive weight assembly, E theor =m g hwhere m isthe massofthe hammer;g isthe accelerationdue togravity;h isthe falling height ofthe hammer. 3.12 energyratioE rratiooftheactualenergyE measandthe theoreticalenergyE theor ofthe hammerexpressedin percentage 3
45、.13 N xy- valuenumber of blows required to drive thepenetrometer over a defined distance x (expressedincentimetres) by thepenetrometeryBS EN ISO 22476-2:2005+A1:2011 EN ISO 22476-2:2005+A1:2011 (E)33.14 specific work per blowE nvalue calculated byE n = m g h/A = E theor/Awhere m is the mass of the h
46、ammer;g is the acceleration due to gravity;h is the falling height of the hammer; A is the nominal base area (calculated using the base diameterD ); E theor is the theoretical energy. 4 Equipment 4.1 Driving device Dimensions and masses of the components of the driving device are given in Table 1. T
47、he following requirementsshall be fulfilled:a) hammershall be convenientlyguided to ensure minimal resistance during the fall; b) automatic release mechanism shall ensure a constant free fall, with a negligible s peed of the hammer when released and no induced parasitic movements in the drive rods;
48、c) steel drive head or anvil should be rigidly connected to the top of the drive rods. A loose connection can bechosen; d) guide to provide verticalityand lateral support for that part of the string of rods protruding above the ground should be part of the driving device. If a pneumatic system for l
49、ifting a hammer is used, it shall be supplied with inspection documents as stipulated byEN 10204 because the driving energyis not always ensured. 4.2 AnvilThe anvil shall be made of high strength steel. A damper or cushion maybe fitted between the hammer and anvil.4.3 Cone The cone of steel shall have an apex angle of 90 and an upper cylindrical extension mantle and transition to theextension rods as shown in Figure 1 and with the dimensions and tolerances given in Table 1. The cone maybeeither retained (fixed) fo
