1、September 2012Translation by DIN-Sprachendienst.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).I
2、CS 13.080.40; 93.020!$Vf“1915167www.din.deDDIN EN ISO 22282-2Geotechnical investigation and testing Geohydraulic testing Part 2: Water permeability tests in a borehole using open systems(ISO 22282-2:2012);English version EN ISO 22282-2:2012,English translation of DIN EN ISO 22282-2:2012-09Geotechnis
3、che Erkundung und Untersuchung Geohydraulische Versuche Teil 2: Wasserdurchlssigkeitsversuche in einem Bohrloch unter Anwendung offenerSysteme (ISO 22282-2:2012);Englische Fassung EN ISO 22282-2:2012,Englische bersetzung von DIN EN ISO 22282-2:2012-09Reconnaissance et essais gotechniques Essais gohy
4、drauliques Partie 2: Essais de permabilit leau dans un forage en tube ouvert(ISO 22282-2:2012);Version anglaise EN ISO 22282-2:2012,Traduction anglaise de DIN EN ISO 22282-2:2012-09www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 32 page
5、s08.12 DIN EN ISO 22282-2:2012-09 2 A comma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee CEN/TC 341 “Geotechnical investigation and testing” (Secretariat: ELOT, Greece) in collaboration with Technical Committee ISO/TC 182 “Geotechnics”, Subc
6、ommittee SC 1 “Geotechnical investigation and testing”. The responsible German body involved in its preparation was the Normenausschuss Bauwesen (Building and Civil Engineering Standards Committee), Working Committee NA 005-05-11 AA Bohr- und Entnahme-verfahren, Grundwassermessungen (SpA zu CEN/TC 3
7、41/WG 1). EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM June 2012 ICS 93.020 English Version Geotechnical investigation and testing - Geohydraulic testing - Part 2: Water permeability tests in a borehole using open systems (ISO 22282-2:2012) Reconnaissance et essais gotechniques - Essais gohydra
8、uliques - Partie 2: Essais de permabilit leau dans un forage en tube ouvert (ISO 22282-2:2012) Geotechnische Erkundung und Untersuchung - Geohydraulische Versuche - Teil 2: Wasserdurchlssigkeitsversuche in einem Bohrloch unter Anwendung offener Systeme (ISO 22282-2:2012) This European Standard was a
9、pproved by CEN on 31 May 2012. CEN members are bound to comply with the CEN/CENELEC 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
10、 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, German). A version in any other language made by translation under the responsibility of a CEN member into its own language
11、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, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
12、Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN na
13、tional Members. Ref. No. EN ISO 22282-2:2012: EEUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG EN ISO 22282-2 1Contents Page Foreword . 3 1 Scope . 4 2 Normative references 4 3 Terms, definitions and symbols . 4 3.1 Terms and definitions 4 3.2 Sym
14、bols 4 4 Test principle 5 5 Equipment . 5 6 Test procedure . 6 6.1 Preparation of a test section . 6 6.2 Conducting the test . 12 7 Test results . 13 7.1 Constant flow rate test method 13 7.2 Variable head test method 13 7.3 Constant head test method . 14 8 Reports 14 8.1 Field report 14 8.2 Test re
15、port . 15 Annex A (informative) Example of record of measured values and test results . 16 Annex B (informative) Interpretation of test results . 17 Bibliography 30 2DIN EN ISO 22282-2:2012-09 EN ISO 22282-2:2012 (E) Foreword This document (EN ISO 22282-2:2012) has been prepared by Technical Committ
16、ee CEN/TC 341 “Geotechnical Investigation and Testing”, the secretariat of which is held by ELOT, 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,
17、 at the latest by December 2012, and conflicting national standards shall be withdrawn at the latest by December 2012. 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 identifyin
18、g any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany,
19、Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. 3DIN EN ISO 22282-2:2012-09 EN ISO 22282-2:2012 (E) 1 Scope7KLVSDUWRI,62VSHFLHVUHTXLUHPHQWVIR
20、UWKHGHWHUPLQDW LRQRIWKHORFDOSHUPHDELOLWLQVRLOVDQGURFNVEHORZDQGDERYHJURXQGZDWHUOHYHOLQDQRSHQKROHEZDWHUSHUPHDELOLWWHVWVDVSDUWRIWKHJHRWHFKQLFDOinvestigation services according to EN 1997-1 and EN 1997-2.2 Normative referencesThe following referenced documents are indispensable for the application of th
21、is document. For dated UHIHUHQFHVRQOWKHHGLWLRQFLWHGDSSOLHV)RUXQGDWHGUHIHUHQFHVWKHODWHVWHGLWLRQRIWKHUHIHUHQFHGGRFXPHQW LQFOXGLQJDQDPHQGPHQWV DSSOLHV,62*HRWHFKQLFDO LQYHVWLJDWLRQ DQG WHVWLQJ ,GHQWLFDWLRQ DQG FODV VLFDWLRQ RI VRLO 3DUW ,GHQWLFDWLRQDQGGHVFULSWLRQ,62*HRWHFKQLFDOLQYHVWLJDWLRQDQGWHVWLQJ,GH
22、QWLFDWLRQDQGFODV VLFDWLRQRIURFN3DUW,GHQWLFDWLRQDQGGHVFULSWLRQ,62Geotechnical investigation and testing Geohydraulic testing Part 1: General rules,62Geotechnical investigation and testing Sampling methods and groundwater measurements Part 1: Technical principles for execution 7HUPVGHQLWLRQVDQGVPEROV
23、7HUPVDQGGHQLWLRQV)RUWKHSXUSRVHVRIWKLVGRFXPHQWWKHWHUPVDQGGHQLWLRQVJLYHQLQ,62DQG,62DSSO3.2 Symbols)RUWKHSXUSRVHVRIWKLVGRFXPHQWWKHVPEROVJLYHQLQ7DEOHDSSO4DIN EN ISO 22282-2:2012-09 EN ISO 22282-2:2012 (E) Table 1 SymbolsSymbol Designation UnitAcarea of the inner cross-section of the casing m2Ararea of t
24、he water surface in the reservoir m2D ERUHKROHGLDPHWHUGLDPHWHURIWKHWHVWVHFWLRQ mF shape factor mh KGUDXOLFKHDGRIWKHWHVW mh1h2h3DSSOLHGKGUDXOLFKHDGV mhodistance of the water level from the ground level mh FKDQJHLQKGUDXOLFKHDG mk SHUPHDELOLWFRHIFLHQW m/skfsHOGVDWXUDWHGSHUPHDELOLWFRHIFLHQW m/sL length
25、(height) of the test section mQ RZUDWH m3/sr radius S VWRUDJHFRHIFLHQW T WUDQVPLVVLYLW tiWLPHQHHGHGWRUHDFKWKHHTXLOLEULXP st time stotime at start of test sVYROXPHRZUDWH4 Test principleThe test is based on the assumption that the test section is isolated and located above or below the groundwater sur
26、face.7KHUHVXOWVFDQYDUGHSHQGLQJRQWKHWHVWWSHFKRVHQ ZDWHUZLWKGUDZDORULQMHFWLRQ DFFRUGLQJWRWKHSXUSRVHof the test. Three test methods are available:D &RQVWDQWRZUDWHWHVWPHWKRG VXLWDEOHIRUk-value greater than 10m/s)7KLVWHVWFRQVLVWVRISURGXFLQJDFKDQJHLQKGUDXOLFKHDGLQDVHFWLRQRIDERUHKROHELQMHFWLQJRUZLWKGUDZLQJ
27、DFRQVWDQWRZUDWH7KHFKDQJHLQKGUDXOLFKHDGLVPHDVXUHGDJDLQVWWLPHb) Variable head test method (suitable for k-value between 10m/s and 10m/s)7KLVWHVWFRQVLVWVRISURGXFLQJDQLQVWDQWFKDQJHLQKGUDXOLFKHDGLQDVHFWLRQRIDERUHKROH7KHFKDQJHLQKGUDXOLFKHDGLVPHDVXUHGDJDLQVWWLPHc) Constant head test method (suitable for k-
28、value between 10m/s and 10m/s)7KLVWHVWFRQVLVWVRIPDLQWDLQLQJDFRQVWDQWKGUDXOLFKHDGLQDVHFWLRQRIDERUHKROH7KHRZUDWHLVPHDVXUHGagainst time.5 Equipment,QDGGLWLRQWRDFDVLQJRUDSLHRPHWHUWKHIROORZLQJHTXLSPHQWLVQHFHVVDUD ZDWHUVXSSORUSODLQURGIRUWKHIDOOLQJKHDGWHVW5DIN EN ISO 22282-2:2012-09 EN ISO 22282-2:2012 (E)
29、 E SXPSRUEDLOVVWHPIRUWKHULVLQJKHDGWHVWF GHYLFHWRGHWHUPLQHWKHRZUDWHZLWKDQDFFXUDFRIRIWKHPHDVXULQJUDQJHIRUFRQVWDQWKHDGDQGFRQVWDQWRZG GHYLFHWRPDLQWDLQWKHRZUDWHIRUFRQVWDQWRZH SHUIRUDWHGWXEHDQGRUOWHUPDWHULDO IRUOWHUFULWHULDVHH,62 I GHYLFHWRPHDVXUHWKHZDWHUOHYHOLQWKHFDVLQJRUSLHRPHWHUZLWKDQDFFXUDFRIPJ DWLPHP
30、HDVXULQJDQGRUUHFRUGLQJGHYLFHUHDGLQJLQV$OOWKHHTXLSPHQWDQGPHDVXULQJGHYLFHVVKDOOEHFDOLEUDWHGDFFRUGLQJWRWKHLUXVHHLWKHUSHULRGLFDOORUEHIRUHWKHDUHXVHG6 Test procedure6.1 Preparation of a test section6.1.1 General7KHWHVWVHFWLRQVKDOOEHSUHSDUHGLQDFFRUGDQFHZLWK,62$QQH$6.1.2 Preparation of a test section in non
31、-stable soil and rock below the groundwater surfaceULOOLQJVKDOOEHHHFXWHGZLWKWKHXVHRIDFDVLQJ$IWHUGULOOLQJWKHWHVWVHFWLRQDQGFOHDQLQJWKHERUHKROHWKHtest section shall be prepared according to one of these three alternatives (see Figure 1):D $SHUIRUDWHGWXEHWKDWLVFORVHGEDSHUIRUDWHGRUFORVHGG LVFDWWKHERWWRPV
32、KDOOEHLQVWDOOHGWKURXJKWKHFDVLQJWXEHLQWKHWHVWVHFWLRQ)LJXUHD $IWHUWKDWWKHFDVLQJWXEHVKDOOEHZLWKGUDZQEWKHOHQJWKL VKRUWODERYHWKHXSSHUHQGRIWKHSHUIRUDWHGVHFWLRQ127( ,IWKHERWWRPRIWKHERUHKROHVFDQQRWEHFOHDQHGDIXOOGLVFFDQEHXVHGDWWKHERWWRPRIWKHWXEH,QWKLVFDVHDVSHFLFVKDSHIDFWRULVXVHG VHH,62 E %HIRUHZLWKGUDZLQJWKH
33、FDVLQJWXEHDQDSSURSULDWHOWHUPDWHULDOVKDOOEHOOHGLQWRWKHWHVWVHFWLRQ$IWHUWKDWWKHFDVLQJWXEHVKDOOEHZLWKGUDZQXSWRWKHXSSHUHGJHRIWKHOWHU)LJXUHE c) Open end test: the test is performed at the bottom of the casing through the open section of diameter D Figure 1 c).6DIN EN ISO 22282-2:2012-09 EN ISO 22282-2:201
34、2 (E) a) With perforated tube E :LWKOWHUPDWHULDOKey1 ground2 top surface3 water table4 test section5 perforated or closed disc6 casing7 perforated tube OWHUSDFNL length of the test sectionD diameter of the test section7DIN EN ISO 22282-2:2012-09 EN ISO 22282-2:2012 (E) c) Open end testKey1 ground2 top surface3 water table4 casingD diameter of the test sectionFigure 1 Test section in non-stable soil and rock6.1.3 Preparation of a test section in stable soil and rock$IWHUGULOOLQJWKHWHVWVHFWLRQDQGFOHDQLQJWKH
