1、March 2012 Translation by DIN-Sprachendienst.English price group 16No 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
2、93.020!$zC?“1873228www.din.deDDIN EN ISO 22476-2Geotechnical investigation and testing Field testing Part 2: Dynamic probing (ISO 22476-2:2005 + Amd 1:2011) English translation of DIN EN ISO 22476-2:2012-03Geotechnische Erkundung und Untersuchung Felduntersuchungen Teil 2: Rammsondierungen (ISO 2247
3、6-2:2005 + Amd 1:2011) Englische bersetzung von DIN EN ISO 22476-2:2012-03Reconnaissance et essais gotechniques Essais en place Partie 2: Essais de pntration dynamique (ISO 22476-2:2005 + Amd 1:2011)(Amendement A1:2011 inclus)Traduction anglaise de DIN EN ISO 22476-2:2012-03SupersedesDIN EN ISO 2247
4、6-2:2005-04www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.36(enthlt nderung A1:2011)(includes Amendment A1:2011)03.12 DIN EN ISO 22476-2:2012-03 2 A comma is used as the decimal marker. National foreword This standard has been pre
5、pared by Technical Committee CEN/TC 341 “Geotechnical investigation and testing” (Secretariat: ELOT, Greece), Working Group WG 3 “Dynamic probing and Standard Penetration Test” (Secretariat: DIN, Germany), in collaboration with Technical Committee ISO/TC 182 “Geotechnics”. The responsible German bod
6、y involved in its preparation was the Normenausschuss Bauwesen (Building and Civil Engineering Standards Committee), Working Committee NA 005-05-09 AA Baugrund, Feldversuche. This document includes Amendment A1:2011, approved by CEN on 2011-11-14. The start and finish of text introduced or altered b
7、y amendment is indicated in the text by tags !“. Amendments This standard differs from DIN EN ISO 22476-2:2005-04 as follows: a) Clause 1 has been revised; b) Clause 2 has been revised; c) Clause 4 has been revised; d) Clause 5 has been revised; e) Clause 6 has been revised; f) Clause 7 has been rev
8、ised; g) Annex B has been revised; h) Annex D has been revised; i) the Bibliography has been updated. Previous editions DIN 4094: 1960-12, 1990-12 DIN 4094-1: 1964-05, 1974-11 DIN 4094-2: 1965-06, 1980-05 DIN 4094-3: 2002-01 DIN 4094-3 Suppl 1: 1990-12 DIN EN ISO 22476-2: 2005-04 EUROPEAN STANDARD N
9、ORME EUROPENNE EUROPISCHE NORM EN ISO 22476-2 January 2005 + A1 November 2011 ICS 93.020 English version Geotechnical investigation and testing Field testing Part 2: Dynamic probing (ISO 22476-2:2005 + Amd 1:2011) Reconnaissance et essais gotechniques Essais en place Partie 2: Essais de pntration dy
10、namique (ISO 22476-2:2005 + Amd 1:2011) Geotechnische Erkundung und Untersuchung Felduntersuchungen Teil 2: Rammsondierungen (ISO 22476-2:2005 + Amd 1:2011) EN ISO 22476-2:2005 was approved by CEN on 2004-11-04 and Amendment A1:2011 on 2011-11-14. CEN members are bound to comply with the CEN/CENELEC
11、 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 Management Centre or to any CEN me
12、mber. The European Standards exist 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 Management Centre has the same status as the official versions. CEN members
13、are the national standards bodies of 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
14、den, Switzerland, and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members.
15、 Ref. No. EN ISO 22476-2:2005 + A1:2011 EContents 1 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 Equipment 6 5 Test procedure.9 6 Test results.12 7 Reporting 12 Annex A (informative) Summary log for dynamic probing.15 Annex B (informative) Record of measured values and test results
16、for dynamic probing 16 Annex C (informative) Recommended method to measure the actual energy 17 Annex D (informative) Geotechnical and equipment influences on the dynamic probing results 20 Annex E (informative) Interpretation of test results by using the dynamic point resistance .30 Bibliography 3
17、DIN EN ISO 22476-2:2012-03 EN ISO 22476-2:2005 + A1:2011 (E) 2 Page . 3 Foreword to EN ISO 22476-2:2005 . Foreword to EN ISO 22476-2:2005/A1:2011 . 3 4Foreword to EN ISO 22476-2:2005 This document (EN ISO 22476-2:2005) has been prepared by Technical Committee CEN/TC 341 “Geotechnical investigation a
18、nd testing”, the secretariat of which is held by DIN, 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 July 2005, and conflicting
19、 national standards shall be withdrawn at the latest by July 2005. EN ISO 22476, Geotechnical 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
20、 test Part 5: Flexible dilatometer test Part 6: Self-boring pressuremeter test Part 7: Borehole 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 loading
21、 test According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain,
22、 Sweden, Switzerland and United Kingdom. Foreword to EN ISO 22476-2:2005/A1:2011 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 Committ
23、ee 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 latest by May 2012. Attention is drawn to the po
24、ssibility 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 standards organizations of the following countries
25、 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, Poland, Portugal, Romania, Slovakia, Slovenia,
26、 Spain,Sweden, Switzerland and the United Kingdom. DIN EN ISO 22476-2:2012-03 EN ISO 22476-2:2005 + A1:2011 (E) 3 countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, 1 Scope This document covers the determination of the resistance of soils and soft rock
27、s in situ to the dynamic penetration of a cone. A hammer of a given mass and given height of fall is used to drive the cone. The penetration resistance is defined as the number of blows required to drive the cone over a defined distance. A continuous record is provided with respect to depth but no s
28、amples are recovered. Four procedures are included, covering a wide range of specific work per blow: dynamic probing light (DPL): test representing the lower end of the mass range of dynamic equipment; dynamic probing medium (DPM): test representing the medium mass range of dynamic equipment; dynami
29、c probing heavy (DPH): test representing the medium to very heavy mass range of dynamic equipment; dynamic probing super heavy (DPSH): test representing the upper end of the mass range of dynamic equipment. The test results of this document are specially suited for the qualitative determination of a
30、 soil profile together with 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies
31、. EN 10204, Metallic products Types of inspection documents 3 Terms and definitions For the purpose of this document, the following terms and definitions apply. 3.1 dynamic penetrometer cone and drive rods 3.2 dynamic probing equipment penetrometer and all equipment necessary to drive the penetromet
32、er !This part of ISO 22476 deals with the equipment requirements for, execution of and reporting on dynamic probing. NOTE This part of ISO 22476 fulfils the requirements for dynamic probing as part of geotechnical investigation and testing according to EN 1997-1 and EN 1997-2.“ direct investigations
33、 (e.g. sampling according to !ISO 22475-1“) or as a relative comparison of other in situ tests. They may also be used for the determination of the strength and deformation properties of soils, generally of the cohesionless type but also possibly in fine-grained soils, through appropriate correlation
34、s. The results can also be used to determine the depth to very dense ground layers e.g. to determine the length of end bearing piles, and to detect very loose, voided, back-filled or infilled ground. !ISO 22475-1, Geotechnical investigation and testing Sampling methods and groundwater measurements P
35、art 1: Technical principles for execution“ DIN EN ISO 22476-2:2012-03 EN ISO 22476-2:2005 + A1:2011 (E) 4 3.3 anvil or drive head portion of the drive-weight assembly that the hammer strikes and through which the hammer energy passes into the drive rods 3.4 cushion; damper placed upon the anvil to m
36、inimise damage to the equipment 3.5 hammer portion of the drive-weight assembly which is successively lifted and dropped to provide the energy that accomplishes the penetration of the cone 3.6 height of fall free fall of the hammer after being released 3.7 drive-weight assembly device consisting of
37、the hammer, the hammer fall guide, the anvil and the drop system 3.8 drive rods rods that connect the drive-weight assembly to the cone 3.9 cone pointed probe of standard dimensions used to measure the resistance to penetration (see Figure 1) 3.10 actual energy; driving energy Emeas energy delivered
38、 by the drive-weight assembly into the drive rod immediately below the anvil, as measured 3.11 theoretical energy Etheorenergy as calculated for the drive weight assembly, Etheor= m g h where m is the mass of the hammer; g is the acceleration due to gravity; h is the falling height of the hammer. 3.
39、12 energy ratio Er ratio of the actual energy Emeas and the theoretical energy Etheorof the hammer expressed in percentage 3.13 Nxy-value number of blows required to drive the penetrometer over a defined distance x (expressed in centimetres) by the penetrometer y DIN EN ISO 22476-2:2012-03 EN ISO 22
40、476-2:2005 + A1:2011 (E) 5 3.14 specific work per blow Envalue calculated by En= m g h/A = Etheor/A where m is the mass of the hammer; 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 diameter D); Etheor is the theoret
41、ical energy. 4 Equipment 4.1 Driving device Dimensions and masses of the components of the driving device are given in Table 1. The following requirements shall be fulfilled: a) hammer shall be conveniently guided to ensure minimal resistance during the fall; b) automatic release mechanism shall ens
42、ure a constant free fall, with a negligible speed of the hammer when released and no induced parasitic movements in the drive rods; c) steel drive head or anvil should be rigidly connected to the top of the drive rods. A loose connection can be chosen; d) guide to provide verticality and lateral sup
43、port for that part of the string of rods protruding above the ground should be part of the driving device. If a pneumatic system for lifting a hammer is used, it shall be supplied with inspection documents as stipulated by EN 10204 because the driving energy is not always ensured. 4.2 Anvil The anvi
44、l shall be made of high strength steel. A damper or cushion may be 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 the extension rods as shown in Figure 1 and with the dimensions and tolerances
45、 given in Table 1. The cone may be either retained (fixed) for recovery or disposable (lost). When using a disposable cone the end of the drive rod shall fit tightly into the cone. Alternative specifications for the cones are given in Figure 1. !The optional injection hole should be placed a suffici
46、ent distance above the tip of the cone so that the mud flushing does not influence the soil material at the tip.“ DIN EN ISO 22476-2:2012-03 EN ISO 22476-2:2005 + A1:2011 (E) 6 Key 1 Extension rod 3 Thread mounting 4 Cone tip 5 Cone 6 Mantle 7 Point mounting L Mantle length D Base diameter drRod dia
47、meter a) Cone Type 1 shown as retained (fixed) b) Cone Type 2 shown as disposable (lost) Figure 1 Alternative forms of cones for dynamic probing (for L, D and drsee Table 1) 4.4 Drive rods The rod material shall be of a high-strength steel with the appropriate characteristics for the work to be perf
48、ormed without excessive deformations and wear. The rods shall be flush jointed, shall be straight and may have spanner Hollow rods should be used. 4.5 Torque measuring device The torque necessary to turn the driving rods is measured by means of a torque wrench or similar measuring device. The apparatus shall be able to measure a torque of at least 200 Nm and be graduated to read at least in 5 Nm increments. A sensor for recording the torque may be used. The spanner flat in the
