1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 22282-5:2012Geotechnical investigation and testing Geohydraulic testingPart 5: Infiltrometer testsThis British Standard is the UK implementation of EN ISO 22282-5:2012.
2、Together with parts 1, 2, 3, 4, and 6, it partially supersedes BS 5930:1999+A2:2010, which is currently being revised in order toremove conflicting material. In the meantime, where conflict arisesbetween these documents, the provisions of BS EN ISO 22282-5:2012take precedence. The test given in this
3、 standard is included in BS 5930:1999+A2:2010 (Clause 25.4), and conflicting parts are now withdrawn.The UK participation in its preparation was entrusted by Technical Committee B/526, Geotechnics, to Subcommitee B/526/3,Site investigation and ground testing.A list of organizations represented on th
4、is subcommittee can beobtained on request to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application. The British Standards Institution 2012.Published by BSI Standards Limited 2012.ISBN 978 0 580 76154 6I
5、CS 91.010.30; 93.020Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 October 2012.Amendments/corrigenda issued since publicationDate Text affectedBS EN ISO 2228
6、2-5:2012 BRITISH STANDARDNational forewordEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 22282-5 June 2012 ICS 93.020 English Version Geotechnical investigation and testing - Geohydraulic testing - Part 5: Infiltrometer tests (ISO 22282-5:2012) Reconnaissance et essais gotechniques - Essai
7、s gohydrauliques - Partie 5: Essais dinfiltromtres (ISO 22282-5:2012) Geotechnische Erkundung und Untersuchung - Geohydraulische Versuche - Teil 5: Infiltrometerversuche (ISO 22282-5:2012) This European Standard was approved by CEN on 31 May 2012. CEN members are bound to comply with the CEN/CENELEC
8、 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 CEN-CENELEC Management Centre or t
9、o 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 and notified to the CEN-CENELEC Management Centre has the same status as the offici
10、al 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, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slova
11、kia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved wo
12、rldwide for CEN national Members. Ref. No. EN ISO 22282-5:2012: EBS EN ISO 22282-5:2012 EN ISO 22282-5:2012 (E) 3 Foreword This document (EN ISO 22282-5:2012) has been prepared by Technical Committee CEN/TC 341“Geotechnical Investigation and Testing“, the secretariat of which is held by ELOT, in col
13、laboration withTechnical Committee ISO/TC 182 “Geotechnics“. This European Standard shall be given the status of a national standard, either by publication of an identicaltext or by endorsement, at the latest by December 2012, and conflicting national standards shall be withdrawnat the latest by Dec
14、ember 2012. Attention is drawn to the possibility that some of the elements of this document may be the subject of patentrights. 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 o
15、rganisations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, CzechRepublic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Po
16、rtugal, Romania, Slovakia, Slovenia, Spain,Sweden, Switzerland, Turkey and the United Kingdom. BS EN ISO 22282-5:2012ISO 22282-5:2012(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing I
17、nternational 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-governmental, in liaison
18、 with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.The main task of techni
19、cal committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.Attention is drawn t
20、o 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.ISO 22282-5 was prepared by the European Committee for Standardization (CEN) Technical Committee CEN/TC 341, Geotechnical
21、investigation and testing, in collaboration with Technical Committee ISO/TC 182, Geotechnics, Subcommittee SC 1, Geotechnical investigation and testing, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).ISO 22282 consists of the following parts, under t
22、he general title Geotechnical investigation and testing Geohydraulic testing: Part 1: General rules Part 2: Water permeability tests in a borehole using open systems Part 3: Water pressure tests in rock Part 4: Pumping tests Part 5: Infiltrometer tests Part 6: Water permeability tests in a borehole
23、using closed systems ISO 2012 All rights reserved iiiBS EN ISO 22282-5:2012BS EN ISO 22282-5:2012 BS EN ISO 22282-5:2012Geotechnical investigation and testing Geohydraulic testing Part 5: Infiltrometer tests1 ScopeThis part of ISO 22282 establishes requirements for ground investigations by means of
24、infiltrometer tests as part of geotechnical investigation services in accordance with EN 1997-1 and EN 1997-2.It applies to the in situ determination of the water permeability of an existing geological formation or of treated or compacted materials. The infiltrometer test is used to determine the in
25、filtration capacity of the ground at the surface or shallow depth. It is a simple test for determining the permeability coefficient. The method can be applied using either steady-state or transient conditions, in saturated or unsaturated soils.The principle of the test is based on the measurement of
26、 a surface vertical flow rate of water which infiltrates the soil under the influence of a positive hydraulic head.Surface infiltration devices include single and double-ring infiltrometer designs of the open or closed type.The measurement devices and measurement procedures are adapted to different
27、ranges of permeability. Open systems are adapted to permeability ranges from 105to 108m/s and closed systems for permeability lower than 108.Depending on the environmental conditions and the water permeability of the soil, a duration of a few minutes to a few days is needed to run the test.This part
28、 of ISO 22282 defines the terminology and the measured parameters. It specifies the required characteristics of the equipment, defines the procedures of the tests relating to the different measurement techniques and specifies the tests results.It is applicable to: civil engineering projects; hydroge
29、ology studies; and waste storage.2 Normative referencesThe 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) app
30、lies.ISO 22282-1, Geotechnical investigation and testing Geohydraulic testing Part 1: General rulesISO 22475-1, Geotechnical investigation and testing Sampling methods and groundwater measurements Part 1: Technical principles for executionINTERNATIONAL STANDARD ISO 22282-5:2012(E) ISO 2012 All right
31、s reserved 1BS EN ISO 22282-5:2012ISO 22282-5:2012(E)3 Terms, definitions and symbols3.1 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 22282-1 apply.3.2 SymbolsFor the purposes of this document, the symbols given in Table 1 apply.Table 1 SymbolsSymbol
32、 Designation UnitD1diameter of the inner infiltrometer ring mD2diameter of the outer infiltrometer ring mh hydraulic head mh(t) hydraulic head at time t mk permeability coefficient ms1t time sZwthickness of saturated zone mZppenetration depth of the cell mv flow rate velocity ms1V volume Tdynamic vi
33、scosity at temperature T mPas volumetric water content w (gravimetric) water content ddensity of dry soil kgm3sdensity of solid particles kgm3fsuction at the infiltration front m4 Equipment4.1 GeneralThe test equipment comprises:a) a test cell for infiltrating the water into the soil;b) a device for
34、 measuring pressure, water level and/or infiltrated volumes as a function of time. In some cases (e.g. with constant head procedure) equipment and piping connecting the pressure and volume controller to the test cell is also needed;c) equipment for installation of the rings (pushing, anchoring, bond
35、ing and/or sealing);d) water supply and pump (optional);e) a time measuring and/or recording device, reading in seconds;f) additional equipment, e.g. heat insulation device, equipment for sampling and preparing the test area.All the equipment and measuring devices shall be periodically calibrated ac
36、cording ISO 22282-1.2 ISO 2012 All rights reservedBS EN ISO 22282-5:2012ISO 22282-5:2012(E)3 Terms, definitions and symbols3.1 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 22282-1 apply.3.2 SymbolsFor the purposes of this document, the symbols given
37、in Table 1 apply.Table 1 SymbolsSymbol Designation UnitD1diameter of the inner infiltrometer ring mD2diameter of the outer infiltrometer ring mh hydraulic head mh(t) hydraulic head at time t mk permeability coefficient ms1t time sZwthickness of saturated zone mZppenetration depth of the cell mv flow
38、 rate velocity ms1V volume Tdynamic viscosity at temperature T mPas volumetric water content w (gravimetric) water content ddensity of dry soil kgm3sdensity of solid particles kgm3fsuction at the infiltration front m4 Equipment4.1 GeneralThe test equipment comprises:a) a test cell for infiltrating t
39、he water into the soil;b) a device for measuring pressure, water level and/or infiltrated volumes as a function of time. In some cases (e.g. with constant head procedure) equipment and piping connecting the pressure and volume controller to the test cell is also needed;c) equipment for installation
40、of the rings (pushing, anchoring, bonding and/or sealing);d) water supply and pump (optional);e) a time measuring and/or recording device, reading in seconds;f) additional equipment, e.g. heat insulation device, equipment for sampling and preparing the test area.All the equipment and measuring devic
41、es shall be periodically calibrated according ISO 22282-1.2 ISO 2012 All rights reservedBS EN ISO 22282-5:2012ISO 22282-5:2012(E)4.2 Test cell4.2.1 GeneralThe test can be performed with an open system or a closed system.4.2.2 Open systemThe test cell comprises a single cylindrical ring or two coaxia
42、l cylindrical rings (see Figure 1).In the case of the double ring, the outer diameter D2shall be at least twice the diameter of the inner ring D1,with D1 200 mm.In the case of the single ring, its diameter D1shall be at least 200 mm.The test device shall be designed to be pushed into the ground to a
43、 penetration depth Zpof at least 50 mm.The rings shall be rigid and dimensionally stable. Their lower part shall be sharpened to facilitate penetration.4.2.3 Closed systemThe test cell comprises a single cylindrical ring sealed by a tight rigid lid (see Figures 2 and 3). The diameter of the ring D1s
44、hall not be less than 200 mm.The lid shall be equipped with drain valves and test fluid supply valves. A rigid, filtering, porous device resting on the ground and in contact with the lid (see Figure 2) should be included to confine the test area (to avoid swelling and soil alteration).The test devic
45、e shall be designed to be pushed into the ground to a penetration depth Zpof at least 50 mm.To prevent the displacement of the test cell due to the forces generated by the applied pressure, a dead weight system or anchoring device shall be used. The possible displacement of the test cell shall be mo
46、nitored with a resolution of at least 0,01 mm. ISO 2012 All rights reserved 3BS EN ISO 22282-5:2012ISO 22282-5:2012(E)Key1 inner ring2 outer ring3 sharpened edge4 water volume5 sealing materialZppenetration depthSee also Annex A.Figure 1 Cross-section of an open double ring ExampleKey1 drain valves2
47、 water supply valves3 confining device (optional)4 confining force5 displacement gauge6 infiltrometer cellF forceZppenetration depthSee also Annex A.Figure 2 Cross-section of a closed single ring (example) Constant-head type4 ISO 2012 All rights reservedBS EN ISO 22282-5:2012ISO 22282-5:2012(E)Key1
48、inner ring2 outer ring3 sharpened edge4 water volume5 sealing materialZppenetration depthSee also Annex A.Figure 1 Cross-section of an open double ring ExampleKey1 drain valves2 water supply valves3 confining device (optional)4 confining force5 displacement gauge6 infiltrometer cellF forceZppenetrat
49、ion depthSee also Annex A.Figure 2 Cross-section of a closed single ring (example) Constant-head type4 ISO 2012 All rights reservedBS EN ISO 22282-5:2012ISO 22282-5:2012(E)Key1 drain valves2 water supply valves3 confining device (optional)4 confining force5 displacement gauge6 infiltrometer cell7 measuring tubeF forceZppenetration depthSee also Annex A.Figure 3 Cross-section of a closed single ring (example) Variable-head type4.3 Measuring system for hydro
