1、Translation by DIN-Sprachendienst.English price group 37No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 91.010.30;
2、93.020!$k“1725788www.din.deDDIN EN 1997-2Eurocode 7: Geotechnical design Part 2: Ground investigation and testing(includes Corrigendum AC:2010)English translation of DIN EN 1997-2:2010-10Eurocode 7: Entwurf, Berechnung und Bemessung in der Geotechnik Teil 2: Erkundung und Untersuchung des Baugrunds(
3、enthlt Berichtigung AC:2010)Englische bersetzung von DIN EN 1997-2:2010-10Eurocode 7: Calcul gotechnique Partie 2: Reconnaissance des terrains et essais(Corrigendum AC:2010 inclus)Traduction anglaise de DIN EN 1997-2:2010-10Supersedes DIN EN 1997-2:2007-10, DIN V ENV 1997-2:1999-09, withdrawn 2007-1
4、0,DIN V ENV 1997-3:1999-10 and withdrawn 2007-10;partially supersedes DIN 4020:2003-09Supersedes: see belowwww.beuth.deDocument comprises 198 pagesIn case of doubt, the German-language original shall be considered authoritative.October 201012.10 2 A comma is used as the decimal marker. National fore
5、word This standard has been prepared by Technical Committee CEN/TC 250 “Structural Eurocodes”, Subcommittee SC 7 “Eurocode 7 Geotechnical design” (Secretariat: NEN, Netherlands). The responsible German body involved in its preparation was the Normenausschuss Bauwesen (Building and Civil Engineering
6、Standards Committee), Working Committee NA 005-05-06 AA Untersuchungen von Boden und Fels. This European Standard is part of a series of standards dealing with structural design (Eurocodes) which are intended to be used as a “package”. In Guidance Paper L on the application and use of Eurocodes, iss
7、ued by the EU Commission, reference is made to transitional periods for the introduction of the Eurocodes in the Member states. The transitional periods are given in the Foreword of this standard. A national Annex will be prepared in the course of the transitional periods. The scope of DIN EN 1997-2
8、 has been largely aligned with that of DIN 4020. Therefore, DIN 4020 will be revised in parallel with the preparation of the national Annex. This document includes European Corrigendum EN 1997-2:2007/AC:2010. The start and finish of text introduced or altered by amendment is indicated in the text by
9、 tags . Amendments This standard differs from DIN V ENV 1997-2:1999-09, DIN V ENV 1997-3:1999-10 and DIN 4020:2003-09 as follows: a) DIN V ENV 1997-2:1999-09 and DIN V ENV 1997-3:1999-10 have been combined and restructured; b) parts of DIN 4020:2003-09, especially Annex B, have been included. c) a n
10、ew Annex A has been included; d) Clause 6 “Ground investigation report” has been included; e) the standard has been editorially revised. Based on European Corrigendum EN 1997-2:2007/AC:2010, the following corrections have been made to the German version of DIN EN 1997-2:2007-10: f) text, figures and
11、 tables have been corrected; g) in Subclause 1.8, English abbreviations have been added; h) in Subclauses 2.4.1.3 and 4.3.4.1, some corrections to the German translation have been made. Previous editions DIN 4020: 1953-07, 1990-10, 2003-09 DIN V ENV 1997-2: 1999-09 DIN V ENV 1997-3: 1999-10 DIN EN 1
12、997-2: 2007-10 DIN EN 1997-2:2010-10 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1997-2 March 2007 + AC June 2010 ICS 91.060.01; 91.120.20 English version Eurocode 7: Geotechnical design Part 2: Ground investigation and testing Eurocode 7: Calcul gotechnique Partie 2: Reconnaissance des ter
13、rains et essais Eurocode 7: Entwurf, Berechnung und Bemessung in der Geotechnik Teil 2: Erkundung und Untersuchung des Baugrunds EN 1997-2:2007 was approved by CEN on 2006-06-12 and Corrigendum AC on 2010-06-02. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulat
14、e 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 Management Centre or to any CEN member. The European Standards exist i
15、n 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 Management Centre has the same status as the official versions. CEN members are the national standards bodies of
16、 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, Sweden, Switzerland, and United Kingdom
17、. EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1997-2:2007 + AC:2010
18、EContents Page Foreword 7 Section 1 General 10 1.1 Scope 10 1.1.1 Scope of Eurocode 7 . 10 1.1.2 Scope of EN 1997-2 10 1.2 Normative references 11 1.3 Assumptions . 12 1.4 Distinction between Principles and Application Rules 12 1.5 Definitions 13 1.5.1 Terms common to all Eurocodes 13 1.5.2 Terms co
19、mmon to Eurocode 7 13 1.5.3 Specific definitions used in EN 1997-2 13 1.6 Test results and derived values. 14 1.7 The link between EN 1997-1 and EN 1997-2 15 Section 2 Planning of ground investigations 20 2.1 Objectives . 20 2.1.1 General 20 2.1.2 Ground 21 2.1.3 Construction materials 22 2.1.4 Grou
20、ndwater . 22 2.2 Sequence of ground investigations . 22 2.3 Preliminary investigations 23 2.4 Design investigations 24 2.4.1 Field investigations . 24 2.4.2 Laboratory tests. 27 2.5 Controlling and monitoring 31 Section 3 Soil and rock sampling and groundwater measurements 33 3.1 General 33 3.2 Samp
21、ling by drilling . 33 3.3 Sampling by excavation 33 3.4 Soil sampling 33 3.4.1 Categories of sampling methods and laboratory quality classes of samples 33 3.4.2 Soil identification 34 3.4.3 Planning of soil sampling 34 3.4.4 Handling, transport and storing of samples 35 3.5 Rock sampling 35 3.5.1 Ca
22、tegories of sampling methods. 35 3.5.2 Rock identification 36 3.5.3 Planning of rock sampling 36 3.5.4 Handling, transport and storing of samples 37 3.6 Groundwater measurements in soils and rocks 37 3.6.1 General 37 3.6.2 Planning and execution of the measurements. 37 3.6.3 Evaluation of results of
23、 groundwater measurements 38 1.8 Symbols and units16 EN 1997-2:2007 + AC:2010 (E) 2 DIN EN 1997-2:2010-10 Section 4 Field tests in soil and rock. 40 4.1 General 40 4.2 General requirements 40 4.2.1 Planning a specific test programme 40 4.2.2 Execution 41 4.2.3 Evaluation . 41 4.3.1 Objectives . 42 4
24、.3.2 Specific requirements 42 4.3.3 Evaluation of test results. 43 4.3.4 Use of test results and derived values . 43 4.4 Pressuremeter tests (PMT) 45 4.4.1 Objectives . 45 4.4.2 Specific requirements 45 4.4.3 Evaluation of test results. 46 4.4.4 Use of test results and derived values . 47 4.5 Flexib
25、le dilatometer test (FDT) 48 4.5.1 Objectives . 48 4.5.2 Specific requirements 48 4.5.3 Evaluation of test results. 48 4.5.4 Use of test results and derived values . 49 4.6 Standard penetration test (SPT) 49 4.6.1 Objectives . 49 4.6.2 Specific requirements 49 4.6.3 Evaluation of test results. 49 4.
26、6.4 Use of test results and derived values . 50 4.7 Dynamic probing tests (DP) . 51 4.7.1 Objectives . 51 4.7.2 Specific requirements 52 4.7.3 Evaluation of test results. 52 4.7.4 Use of test results and derived values . 52 4.8 Weight sounding test (WST) 53 4.8.1 Objectives . 53 4.8.2 Specific requi
27、rements 53 4.8.3 Evaluation of test results. 54 4.8.4 Use of test results and derived values . 54 4.9 Field vane test (FVT) 55 4.9.1 Objectives . 55 4.9.2 Specific requirements 55 4.9.3 Evaluation of test results. 55 4.9.4 Use of test results and derived values . 56 4.10 Flat dilatometer test (DMT)
28、56 4.10.1 Objectives . 56 4.10.2 Specific requirements 56 4.10.3 Evaluation of test results. 56 4.10.4 Use of test results and derived values . 57 4.11 Plate loading test (PLT) 57 4.11.1 Objectives . 57 4.11.2 Specific requirements 58 4.11.3 Evaluation of test results. 58 4.11.4 Use of test results
29、and derived values . 58 EN 1997-2:2007 + AC:2010 (E) 34.3 Cone penetration and piezocone penetration tests (CPT, CPTM, CPTU)42 DIN EN 1997-2:2010-10 Section 5 Laboratory tests on soil and rock. 60 5.1 General 60 5.2 General requirements for laboratory tests 60 5.2.1.General requirements 60 5.2.2 Pro
30、cedures, equipment and presentation. 60 5.2.3 Evaluation of test results. 60 5.3 Preparation of soil specimens for testing 61 5.3.1 Objective . 61 5.3.2 Requirements 61 5.4 Preparation of rock specimens for testing 62 5.4.1 Objective . 62 5.4.2 Requirements 62 5.5 Tests for classification, identific
31、ation and description of soil 63 5.5.1 General 63 5.5.2 Requirements for all classification tests . 63 5.5.3 Water content determination. 63 5.5.4 Bulk density determination. 64 5.5.5 Particle density determination. 64 5.5.6 Particle size analysis . 64 5.5.7 Consistency limits determination 65 5.5.8
32、 Determination of the density index of granular soil . 66 5.5.9 Soil dispersibility determination . 67 5.5.10 Frost susceptibility 68 5.6 Chemical testing of soil and groundwater 68 5.6.1 Requirements for all chemical tests 68 5.6.2 Organic content determination 70 5.6.3 Carbonate content determinat
33、ion 71 5.6.4 Sulfate content determination . 71 5.6.5 pH value determination (acidity and alkalinity) . 72 5.6.6 Chloride content determination. 72 5.7 Strength index testing of soil 73 5.7.1 Objective . 73 5.7.2 Requirements 73 5.73 Use of test results . 73 5.8 Strength testing of soil 73 5.8.1 Obj
34、ective and scope 73 5.8.2 General requirements 74 5.8.3 Evaluation and use of test results 75 5.8.4 Unconfined compression test 75 5.8.5 Unconsolidated, undrained triaxial compression test . 76 5.8.6 Consolidated triaxial compression test . 76 5.8.7 Consolidated direct shear box tests. 77 5.9 Compre
35、ssibility and deformation testing of soil. 78 5.9.1 General 78 5.9.2 Oedometer compressibility testing . 78 5.9.3 Triaxial deformability testing . 8 5.10 Compaction testing of soil 81 5.10.1 Scope. 81 5.10.2 Compaction tests. 81 5.10.3 California Bearing ratio (CBR) test 81 EN 1997-2:2007 + AC:2010
36、(E) 4 DIN EN 1997-2:2010-10 05.11 Permeability testing of soil. 82 5.11.1 Objective . 82 5.11.2 Requirements 82 5.11.3 Evaluation and use of test results 83 5.12 Tests for classification of rocks 84 5.12.1 General 84 5.12.2 Requirements for all classification tests . 84 5.12.3 Rock identification an
37、d description 84 5.12.4 Water content determination. 85 5.12.5 Density and porosity determination 86 5.13 Swelling testing of rock material 86 5.13.1 General 86 5.13.2 General requirements 87 5.13.3 Evaluation of test results. 87 5.13.4 Swelling pressure index under zero volume change. 8 5.13.5 Swel
38、ling strain index for radially-confined specimens with axial surcharge . 88 5.13.6 Swelling strain developed in unconfined rock specimen 89 5.14 Strength testing of rock material 89 5.14.1 General 89 5.14.2 Requirements for all strength tests 89 5.14.3 Evaluation of test results. 90 5.14.4 Uniaxial
39、compression and deformability test . 90 5.14.5 Point load test 91 5.14.6 Direct shear test. 92 5.14.7 Brazil test 93 5.14.8 Triaxial compression test 94 Section 6 Ground investigation report . 95 6.1 General requirements 95 6.2 Presentation of geotechnical information . 95 6.3 Evaluation of geotechn
40、ical information . 96 6.4 Establishment of derived values . 97 Annex A (informative) List of test results of geotechnical test standards 98 Annex B (informative) Planning of geotechnical investigations . 101 Annex C (informative) Example of groundwater pressure derivations based on a model and long
41、term measurements 109 Annex D (informative) Cone and piezocone penetration tests 111 Annex E (informative) Pressure meter test 121 Annex F (informative) Standard penetration test . 125 Annex G (informative) Dynamic probing test 129 Annex H (informative) Weight sounding test 132Annex I (informative)
42、Field vane test. 133 Annex J (informative) Flat dilatometer test Example of correlations between EOED and DMT results 138 Annex K (informative) Plate loading test 139 Annex L (informative) Detailed information on preparation of soil specimens for testing 143 Annex M (informative) Detailed informatio
43、n on tests for classification, identification and description of soil 150 Annex N (informative) Detailed information on chemical testing of soil. 157 EN 1997-2:2007 + AC:2010 (E) 5 DIN EN 1997-2:2010-10 8Annex O (informative) Detailed information on strength index testing of soil . 162 Annex P (info
44、rmative) Detailed information on strength testing of soil 163 Annex Q (informative) Detailed information on compressibility testing of soil 165 Annex R (informative) Detailed information on compaction testing of soil 166 Annex S (informative) Detailed information on permeability testing of soil 168
45、Annex T (informative) Preparation of specimen for testing on rockmaterial. 170 Annex U (informative) Classification testing of rock material . 171 Annex V (informative) Swelling testing of rock material 173 Annex W (informative) Strength testing of rock material . 175 Annex X (informative) Bibliogra
46、phy. 180 EN 1997-2:2007 + AC:2010 (E) 6 DIN EN 1997-2:2010-10 EN 1997-2:2007 + AC:2010 (E) 7 Foreword This document (EN 1997-2: 2007) has been prepared by Technical Committee CEN/TC 250 “Structural Eurocodes“, the secretariat of which is held by BSI. This European Standard shall be given the status
47、of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2007, and conflicting national standards shall be withdrawn at the latest by March 2010. This document supersedes ENV 1997-2:1999 and ENV 1997-3:1999. CEN/TC 250 is responsible for all Structu
48、ral Eurocodes. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, I
49、reland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Portugal, Poland, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Background of the Eurocode programme In 1975, the Commission of the European Community decided on an action programme in the field of construction, based on article 95 of the Treaty. The objective of the programme was the elimination of technical obstacles to trade and the harmonization of technical specifications. Within this action programme, the Commission took the in
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