1、December 2016 English price group 15No 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 93.020!%“2595792www.din.deDIN E
2、N ISO 22476-15Geotechnical investigation and testing Field testing Part 15: Measuring while drilling (ISO 2247615:2016);English version EN ISO 2247615:2016,English translation of DIN EN ISO 22476-15:2016-12Geotechnische Erkundung und Untersuchung Felduntersuchungen Teil 15: Aufzeichnung der Bohrpara
3、meter (ISO 2247615:2016);Englische Fassung EN ISO 2247615:2016,Englische bersetzung von DIN EN ISO 22476-15:2016-12Reconnaissance et essais Essais de sol Partie 15: Enregistrement des paramtre de forages (ISO 2247615:2016);Version anglaise EN ISO 2247615:2016,Traduction anglaise de DIN EN ISO 22476-
4、15:2016-12www.beuth.deDocument comprises 29 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.11.16 DIN EN ISO 22476-15:2016-12 2 A comma is used as the decimal marker. National foreword This document (EN ISO 22476-15:2016) has b
5、een prepared by Technical Committee CEN/TC 341 “Geotechnical investigation and testing (Secretariat: BSI, United Kingdom) in collaboration with Technical Committee ISO/TC 182 “Geotechnics. The responsible German body involved in its preparation was DIN-Normenausschuss Bauwesen (DIN Standards Committ
6、ee Building and Civil Engineering), Working Committee NA 005-05-11 AA Bohr- und Entnahmeverfahren, Grundwassermessungen (SpA zu CEN/TC 341/WG 1 und ISO/TC 182/WG 4). The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 14688-1 DIN EN ISO 146
7、88-1 ISO 14689-1 DIN EN ISO 14689-1 ISO 22475-1 DIN EN ISO 22475-1 National Annex NA (informative) Bibliography DIN EN ISO 14688-1, Geotechnical investigation and testing Identification and classification of soil Part 1: Identification and description DIN EN ISO 14689-1, Geotechnical investigation a
8、nd testing Identification and classification of rock Part 1: Identification and description DIN EN ISO 22475-1, Geotechnical investigation and testing Sampling methods and groundwater measurements Part 1: Technical principles for execution EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 224
9、76-15 August 2016 ICS 93.020 English Version Geotechnical investigation and testing - Field testing -Part 15: Measuring while drilling (ISO 22476-15:2016) Reconnaissance et essais - Essais de sol -Partie 15: Enregistrement des paramtre de forages(ISO 22476-15:2016) Geotechnische Erkundung und Unters
10、uchung - Felduntersuchungen - Teil 15: Aufzeichnung der Bohrparameter (ISO 22476-15:2016) This European Standard was approved by CEN on 7 August 2016. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status
11、 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 European Standard exists in three official versions (English, French, Germ
12、an). 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 the national standards bodies of Austria, Belgium, Bulgaria, Croatia
13、, 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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and Unit
14、ed Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN
15、ISO 22476-15:2016 EForeword .4Introduction 51 Scope . 62 Normative references 63 Terms and definitions . 64 Symbols 75 Equipment . 85.1 General . 85.2 Drilling equipment. 95.3 Measuring system . 95.3.1 General 95.3.2 Sensors for hydraulic pressures 105.3.3 Measuring system for penetration length .10
16、5.3.4 Measuring system for flushing medium flow .105.3.5 Measuring system for rotational speed .105.3.6 Measuring of hammering energy .115.3.7 Reflected vibrations .115.3.8 Time .115.4 Selection of measured parameters .115.5 Factors influencing MWD results .125.5.1 Tool influence 125.5.2 Drilling ri
17、g influence 125.5.3 Operator influence 126 Test procedures 126.1 General 126.2 Position and level of drill rig 136.3 Preparation of the measurement .136.4 Drilling procedure .136.5 Frequency of logging parameters 146.6 Registration of penetration length 146.7 Test completion .146.8 Equipment checks
18、and calibrations . 157 Test results .157.1 General 157.2 Calculated parameters . 157.2.1 General. 157.2.2 Penetration rate .157.2.3 Down-thrust pressure 157.2.4 Net down-thrust pressure 167.2.5 Flushing medium pressure 167.2.6 Drill head rotational torque 168 Reporting .178.1 General 178.2 Reporting
19、 of test results . 17Annex A (informative) Application of drilling parameters 19Annex B (informative) Graphical presentation of drilling parameters .25Bibliography .27Contents PageEN ISO 22476-15:2016 (E) DIN EN ISO 22476-15:2016-12 2European foreword .3European foreword This document (EN ISO 22476-
20、15:2016) has been prepared by CEN/TC 341 “Geotechnical Investigation and Testing”, the secretariat of which is held by BSI, 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 identic
21、al text or by endorsement, at the latest by February 2017, and conflicting national standards shall be withdrawn at the latest by February 2017. 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
22、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 to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
23、Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, 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
24、of ISO 22476-15:2016 has been approved by CEN as EN ISO 22476-15:2016 without any modification. EN ISO 22476-15:2016 (E) DIN EN ISO 22476-15:2016-12 3 ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work
25、 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, governmental and non-governmen
26、tal, 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 are described in the
27、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 (see www.iso.org/directives).Attention is drawn to the possibi
28、lity 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 the ISO list of p
29、atent declarations received (see www.iso.org/patents).Any 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 well as inf
30、ormation about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.ISO 22476-15 was prepared by the European Committee for Standardization (CEN) in collaboration with ISO/TC 182, Geotechnics, in
31、 accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).A list of all parts in the ISO 22476 series, published under the general title Geotechnical investigation and testing Field testing, can be found on the ISO website.4EN ISO 22476-15:2016 (E) DIN EN ISO 224
32、76-15:2016-12 IntroductionThe measuring-while-drilling (MWD) method deals with the recording of the machine parameters during the drilling process. This can be done manually or with the use of computerized systems which monitor a series of sensors installed on rotary and/or percussive drilling equip
33、ment. These sensors continuously and automatically collect data on all aspects of drilling, in real time, without interfering with the drilling progress. The data are displayed in real time and are also recorded for further analysis. Examples for interpretation of the results are presented in Annex
34、A.The borehole can be used for other applications such as installation of monitoring equipment, geophysical logging or realization of expansion tests. The interpretation of the MWD results can be done in relation with the information provided by sampling.It should be noted that measured and calculat
35、ed drilling parameters are relative and dependant of the test conditions, procedures and equipment.5EN ISO 22476-15:2016 (E) DIN EN ISO 22476-15:2016-12 1 ScopeThis part of ISO 22476 specifies the technical principles for measuring equipment requirements, the execution and reporting on the parameter
36、s of the investigation drilling process for geotechnical purposes.It is applicable to top-driven, destructive drilling methods performed by a fully hydraulically powered drill rig and driving device. It is commonly used with destructive drilling techniques but can also be used with core drilling.The
37、 recording of the drilling parameters during soil grouting, drilling of nails, anchors or piles are beyond the scope of this part of ISO 22476.2 Normative referencesThe following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this do
38、cument. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 14688-1, Geotechnical investigation and testing Identification and classification of soil Part 1: Identification and descriptionI
39、SO 14689-1, Geotechnical investigation and testing Identification and classification of rock Part 1: Identification and descriptionISO 22475-1, Geotechnical investigation and testing Sampling methods and ground water measurements Part 1: Technical principles for execution3 Terms and definitionsFor t
40、he purposes of this document, the terms and definitions given in ISO 22475-1 and the following apply.ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at http:/www.electropedia.org/ ISO Online browsing platform: available
41、 at http:/www.iso.org/obp3.1drilling parametersparameters measured and recorded on the drill rig during drilling (mainly hydraulic pressures, depth, penetration rate, rotation speed, fluid pressure and flow, etc.)3.2compound parametersparameters derived from the combination of a number of the drilli
42、ng parameters6EN ISO 22476-15:2016 (E) DIN EN ISO 22476-15:2016-12 3.3reflected vibrationacceleration due to elastic rebound of rods compressed by hammer impact3.4penetration lengthlength measured along the axis of the borehole between ground level and the drilling tool3.5penetration raterate of pen
43、etration of drilling tool into the ground3.6down thrust pressurethrust pressure applied to drilling tool3.7holdback pressurepressure limiting penetration rate due to safety requirements3.8flushing medium pressurepressure at the level of the drilling tool3.9torquedrill head rotational torque3.10rotat
44、ion speeddrill head rotational speed3.11flushing medium circulation raterate of output of drilling tool down the hole4 SymbolsSymbol Name Unita measured penetration length m efficiency coefficient of down-thrust work efficiency coefficient of torque work efficiency coefficient of hammering work CRme
45、asured drill head torque kNmCR maxmaximum measured drill head torque kNmdoexternal diameter of drill bit mmE calculated drilling energy JEScalculated specific energy JERmeasured reflected vibrations Jf hammer frequency HzFmaxmaximum down thrust force kNHmaxmaximum hold back force kNIAcalculated alte
46、ration index N quantity of rods p measured hydraulic pressure in feed motor or cylinder MPa7EN ISO 22476-15:2016 (E) DIN EN ISO 22476-15:2016-12 Symbol Name UnitpCRmeasured hydraulic pressure in torque motor MPapCROunloaded torque motor pressure MPapCR maxmaximum measured hydraulic pressure in torqu
47、e motor MPapHmeasured hold back pressure MPapIcalculated flushing medium pressure at output of the drilling tool MPapEcalculated net down-thrust (or feed thrust) applied on drilling tool MPapFmeasured flushing medium pressure at output of the pump MPapMmeasured hammering pressure MPapmaxmaximum meas
48、ured down-thrust pressure MPapOraw down-thrust (or feed thrust) applied on drilling tool MPapHCcalculated holdback pressure MPapH maxmaximum measured holdback pressure MPaPRpenetration resistance s/0,2 mQImeasured borehole drilling fluid inflow l/minQOmeasured borehole drilling fluid outflow l/minRS
49、Rcalculated soil-rock resistance MPa m1s1Sdcalculated Somerton index sOmeasured area removed by drill bit (= drilling tool surface) m2t measured time svApenetration rate m/hvRmeasured drill head rotational speed r/minWHweight of rotary head kNWRweight of drill rod kNZ measured depth mrwmeasured ground water table depth m5 Equipment5.1 GeneralDrilling parameter
