BS EN ISO 17892-2-2014 Geotechnical investigation and testing Laboratory testing of soil Determination of bulk density《岩土工程勘察和测试 土壤的实验室试验 容积密度的测定》.pdf

1、BSI Standards PublicationBS EN ISO 17892-2:2014Geotechnical investigation andtesting Laboratory testing ofsoilPart 2: Determination of bulk densityBS EN ISO 17892-2:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 17892-2:2014. It partially supersedes BS

2、 1377-2:1990, specifically clause 7.The UK participation in its preparation was entrusted to TechnicalCommittee B/526/3, Site investigation and ground testing.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include

3、 all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2014.Published by BSI Standards Limited 2014ISBN 978 0 580 81883 7ICS 13.080.20; 93.020Compliance with a British Standard cannot confer immunity fromlegal obligations.This

4、British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 December 2014.Amendments/Corrigenda issued since publicationDateT e x t a f f e c t e dEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 17892-2 December 2014 ICS 13.080.20; 93.020 Supersede

5、s CEN ISO/TS 17892-2:2004English Version Geotechnical investigation and testing - Laboratory testing of soil - Part 2: Determination of bulk density (ISO 17892-2:2014) Reconnaissance et essais gotechniques - Essais de laboratoire sur les sols - Partie 2: Dtermination de la masse volumique (ISO 17892

6、-2:2014) Geotechnische Erkundung und Untersuchung - Prfen von Bodenproben im Labor - Teil 2: Bestimmung der Dichte von feinkrnigem Boden (ISO 17892-2:2014) This European Standard was approved by CEN on 18 October 2014. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which s

7、tipulate 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 Management Centre or to any CEN member. This Europe

8、an 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 as the official versions. CEN members are

9、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, Roma

10、nia, Slovakia, Slovenia, 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 2014 CEN All rights of exploitation in any form and by

11、 any means reserved worldwide for CEN national Members. Ref. No. EN ISO 17892-2:2014 EBS EN ISO 17892-2:2014EN ISO 17892-2:2014 (E) 3 Foreword This document (EN ISO 17892-2:2014) has been prepared by Technical Committee ISO/TC 182 “Geotechnics“ in collaboration Technical Committee CEN/TC 341 “Geotec

12、hnical Investigation and Testing” the secretariat of which is held by BSI. 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 June 2015, and conflicting national standards shall be withdrawn at the l

13、atest by June 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 CEN ISO/TS 17892-2:2004. According to the

14、 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, Germany, Greece, Hu

15、ngary, 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 17892-2:2014 has been approved by CEN as EN ISO 17892-2:2014 without

16、 any modification. BS EN ISO 17892-2:2014ISO 17892-2:2014(E)Contents PageForeword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 24 Equipment . 24.1 Linear measurement method . 24.2 Immersion in fluid method. 24.3 Fluid displacement method . 25 Test procedure 35.1 Linea

17、r measurement method . 35.1.1 General 35.1.2 Specimen from block sample 35.1.3 Specimen from sample tube. 35.1.4 Cylindrical specimen of smaller diameter than the sample tube 45.1.5 Measurements 45.2 Immersion in fluid method. 45.2.1 Equipment preparation . 45.2.2 Specimen preparation and measuremen

18、ts . 55.3 Fluid displacement method . 65.3.1 Equipment preparation . 65.3.2 Specimen preparation and measurements . 76 Test results 86.1 Volume 86.1.1 Linear Method 86.1.2 Immersion in fluid method . 96.1.3 Fluid displacement method 96.2 Bulk density . 96.3 Dry density 107 Test report 10Annex A (nor

19、mative) Calibration, maintenance and checks 11Annex B (informative) Explanations 13Bibliography .14 ISO 2014 All rights reserved iiiBS EN ISO 17892-2:2014ISO 17892-2:2014(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO me

20、mber bodies). The 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, governme

21、ntal and non-governmental, 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

22、 are described in 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. www.iso.org/directivesAttention is draw

23、n 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 patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on t

24、he ISO list of patent declarations received. www.iso.org/patentsAny 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 w

25、ell as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT), see the following URL: Foreword - Supplementary informationISO 17892-2 was prepared by the European Committee for Standardization (CEN) Technical Committee CEN/TC 341, Geotechnical investigation a

26、nd testing, in collaboration with Technical Committee ISO/TC 182, Geotechnics, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).This first edition of ISO 17892-2 cancels and replaces ISO/TS 17892-2:2004, which has been technically revised. It also inco

27、rporates the Technical Corrigendum ISO/TS 17892-2:2004/Cor 1:2006.ISO 17892 consists of the following parts, under the general title “Geotechnical investigation and testing Laboratory testing of soil”: Part 1: Determination of water content Part 2: Determination of bulk density Part 3: Determination

28、 of particle density Part 4: Determination of particle size distribution Part 5: Incremental loading oedometer test Part 6: Fall cone test Part 7: Unconfined compression test on fine-grained soils Part 8: Unconsolidated undrained triaxial test Part 9: Consolidated triaxial compression tests on water

29、-saturated soils Part 10: Direct shear tests Part 11: Determination of permeability by constant and falling head Part 12: Determination of Atterberg limitsiv ISO 2014 All rights reservedBS EN ISO 17892-2:2014ISO 17892-2:2014(E)IntroductionThis document covers areas in the international field of geot

30、echnical engineering never previously standardised internationally. It is intended that this document presents broad good practice throughout the world and significant differences with national documents is not anticipated. It is based on international practice (see Reference 1). ISO 2014 All rights

31、 reserved vBS EN ISO 17892-2:2014BS EN ISO 17892-2:2014Geotechnical investigation and testing Laboratory testing of soil Part 2: Determination of bulk density1 ScopeThis International Standard specifies three methods for the determination of the bulk density of soils, comprising:a) linear measuremen

32、t method;b) immersion in fluid method;c) fluid displacement method.This International Standard is applicable to the laboratory determination of the bulk density of soil within the scope of geotechnical investigations.The linear measurement method is suitable for the determination of the bulk density

33、 of a specimen of soil of regular shape, including specimens prepared for other tests. The specimens used are either rectangular prisms or cylinders with circular cross sections.The immersion in fluid method covers the determination of the bulk density of a specimen of natural or compacted soil by m

34、easuring its mass in air and its apparent mass when suspended in fluid. The method may be used when lumps of material of suitable size can be obtained.The fluid displacement method covers the determination of the bulk density of a specimen of soil by measuring its mass in air and the mass of fluid d

35、isplaced by immersion. The method may be used when lumps of material of suitable size can be obtained.If the immersion in fluid method or fluid displacement method is used, and if the fluid is likely to penetrate into the specimen (eg water) the specimen should be coated before testing to prevent fl

36、uid penetration.The bulk density of a soil is useful in the determination of the in situ overburden stress as a function of depth.If required, the dry density of a specimen may be calculated from the bulk density and the water content, if known.NOTE This International Standard fulfils the requiremen

37、ts of the determination of the bulk density of soils for geotechnical investigation and testing in accordance with EN 19971 and EN 19972.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For date

38、d references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 17892-1, Geotechnical investigation and testing Laboratory testing of soil Part 1: Determination of water contentISO 14688-1, Geotechnical invest

39、igation and testing Identification and classification of soil Part 1: Identification and descriptionINTERNATIONAL STANDARD ISO 17892-2:2014(E) ISO 2014 All rights reserved 1BS EN ISO 17892-2:2014ISO 17892-2:2014(E)3 Terms and definitionsFor the purposes of this document, the following terms and defi

40、nitions apply.3.1bulk densitymass of soil per unit volume of the material, including any water or gas it contains3.2dry densitydmass of oven-dried soil per unit volume of the material4 Equipment4.1 Linear measurement methodThe following items are necessary for the linear measurement method:4.1.1 Cut

41、ting and trimming tools (e.g. a sharp knife, wire saw, spatula, cutting ring, soil lathe).4.1.2 Steel straight edge, with a maximum deviation from straight of 0,1 % of its length.4.1.3 Try-square or a jig (e.g. a mitre box) or split mould, to ensure that flatness shall be accurate to within 0,5 % of

42、 each dimension and that right-angles are within 0,5 of true.4.1.4 Callipers, either analogue or digital, readable to 0,1 mm or 0,1 % of the measured length, whichever value is the greater.4.1.5 Balance, accurate to 0,01 g or 0,1 % of the weighed mass, whichever value is the greater.4.2 Immersion in

43、 fluid methodThe following items are necessary for the immersion measurement method:4.2.1 Container of a suitable size.4.2.2 Balance, accurate to 0,01 g or 0,1 % of the weighed mass, whichever is the greater.4.2.3 Thermometer or temperature measuring device, accurate to 1C.4.2.4 Cradle and supportin

44、g frame, similar in principle to that shown in Figure 1 which, with the frame attached to the scoop or platform of the balance, can support the cradle below the balance.4.2.5 Materials: modelling clay or putty and a suitable coating, to prevent fluid penetration (if used, e.g. paraffin wax).4.2.6 Eq

45、uipment for melting wax (if used), preferably electrically heated and thermostatically controlled.4.3 Fluid displacement methodThe following items are necessary for the fluid displacement method:2 ISO 2014 All rights reservedBS EN ISO 17892-2:2014ISO 17892-2:2014(E)4.3.1 Rigid container with a sipho

46、n tube. The container shall be large enough to accommodate the specimen.4.3.2 Container, to collect the fluid siphoning over from the specimen container.4.3.3 Balance, accurate to 0,01 g or 0,1 % of the weighed mass, whichever value is the greater.4.3.4 Thermometer or temperature measuring device, a

47、ccurate to 1C.4.3.5 Materials: modelling clay or putty and a suitable coating, to prevent fluid penetration (if used, e.g. paraffin wax).4.3.6 Equipment for melting wax (if used), preferably electrically heated and thermostatically controlled.Alternatively, the equipment described in 4.2 can be used

48、. In such case, a correction for the uplift for the cradle shall be included in the calculations.5 Test procedureTest specimens should be at least 50 cm3in volume, and preferably significantly larger.NOTE If smaller specimens are tested they may be less representative of the material as a whole and

49、the result may not be as accurate as suggested by the reported value.5.1 Linear measurement method5.1.1 GeneralThe principle of the method is to weigh a specimen of known volume. Three procedures are specified for preparing the specimen. Other methods are also accepted if they provide representative specimens of regular shape.5.1.2 Specimen from block sample5.1.2.1 At least 10 mm from the outside face of the block sample shall be cut away and an approximately rectangular prism of soil slightly larger than the final dimensions