1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 22282-1:2012Geotechnical investigation andtesting Geohydraulic testingPart 1: General rules (ISO 22282-1:2012)BS EN ISO 22282-1:2012 BRITISH STANDARDNational forewordTh
2、is British Standard is the UK implementation of EN ISO 22282-1:2012. Together with parts 2, 3, 4, 5, and 6 of BS EN ISO 22282, it partially supersedes BS 5930:1999+A2:2010,which is currently being revised in order to remove conflictingmaterial. In the meantime, where conflict arises between thesedoc
3、uments, the provisions of BS EN ISO 22282-1:2012 take precedence. The test given in this standard is included in BS 5930:1999+A2:2010(Clause 25.4), and conflicting parts are now withdrawn.The UK participation in its preparation was entrusted by TechnicalCommittee B/526, Geotechnics, to Subcommittee
4、B/526/3, Siteinvestigation and ground testing.A list of organizations represented on this 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 Sta
5、ndards Institution 2012.Published by BSI Standards Limited 2012.ISBN 978 0 580 76150 8ICS 91.010.30; 93.020Compliance with a British Standard cannot confer immunityfrom legal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 Octob
6、er 2012.Amendments/corrigenda issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 22282-1 June 2012 ICS 93.020 English Version Geotechnical investigation and testing - Geohydraulic testing - Part 1: General rules (ISO 22282-1:2012) Reconnaissance et ess
7、ais gotechniques - Essais gohydrauliques - Partie 1: Rgles gnrales (ISO 22282-1:2012) Geotechnische Erkundung und Untersuchung - Geohydraulische Versuche - Teil 1: Allgemeine Regeln (ISO 22282-1:2012) This European Standard was approved by CEN on 31 May 2012. CEN members are bound to comply with the
8、 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 standards may be obtained on application to the CEN-CENELEC Management
9、 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 and notified to the CEN-CENELEC Management Centre has the same status a
10、s 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, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Ro
11、mania, Slovakia, 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
12、 reserved worldwide for CEN national Members. Ref. No. EN ISO 22282-1:2012: EBS EN ISO 22282-1:2012EN ISO 22282-1:2012 (E) 3 Foreword This document (EN ISO 22282-1:2012) has been prepared by Technical Committee CEN/TC 341“Geotechnical Investigation and Testing“, the secretariat of which is held by E
13、LOT, in collaboration 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 la
14、test by December 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
15、standards organisations 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,
16、 Poland, Portugal, Romania, Slovakia, Slovenia, Spain,Sweden, Switzerland, Turkey and the United Kingdom. BS EN ISO 22282-1:2012ISO 22282-1:2012(E) ISO 2012 All rights reserved iiiContents PageForeword ivIntroduction v1 Scope 12 Normative references . 13 Terms, definitions and symbols 23.1 Terms and
17、 definitions . 23.2 Symbols . 44 Equipment . 44.1 General . 44.2 Test section support system 54.3 Measuring tube 54.4 Isolation of the test section 54.5 Measuring and recording devices 54.6 Additional equipment . 64.7 Calibration . 65 Planning of geohydraulic investigation and testing 65.1 General .
18、 65.2 Selection of testing locations 75.3 Selection of test procedure 76 Preparation of the test section and installation of equipment 146.1 Requirements for drilling and the test sections .146.2 Installation of filter 156.3 Checking installation 156.4 Safety requirements .156.5 Decommissioning .156
19、.6 Factors influencing the test results .16Annex A (informative) Examples of possible test section isolation and support methods .18Annex B (informative) Examples of shape factors 24Bibliography .26BS EN ISO 22282-1:2012ISO 22282-1:2012(E)ForewordISO (the International Organization for Standardizati
20、on) is a worldwide federation of national standards bodies (ISO member bodies). The work 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 re
21、presented on that committee. International organizations, governmental and non-governmental, 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.International Standards a
22、re drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.The main task of technical 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 Internation
23、al Standard requires approval by at least 75 % of the member bodies casting a vote.Attention is drawn to 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 22282-1 was pre
24、pared by the European Committee for Standardization (CEN) Technical Committee CEN/TC 341, Geotechnical 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 technica
25、l cooperation between ISO and CEN (Vienna Agreement).ISO 22282 consists of the following parts, under the 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
26、 rock Part 4: Pumping tests Part 5: Infiltrometer tests Part 6: Water permeability tests in a borehole using closed systemsiv ISO 2012 All rights reservedBS EN ISO 22282-1:2012ISO 22282-1:2012(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national st
27、andards bodies (ISO member bodies). The work 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 o
28、rganizations, governmental and non-governmental, 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.International Standards are drafted in accordance with the rules give
29、n in the ISO/IEC Directives, Part 2.The main task of technical 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
30、 % of the member bodies casting a vote.Attention is drawn to 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 22282-1 was prepared by the European Committee for Standard
31、ization (CEN) Technical Committee CEN/TC 341, Geotechnical 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 Ag
32、reement).ISO 22282 consists of the following parts, under the 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: Infiltro
33、meter tests Part 6: Water permeability tests in a borehole using closed systemsiv ISO 2012 All rights reservedBS EN ISO 22282-1:2012ISO 22282-1:2012(E)IntroductionThe EU water directive requires the member states to increase activities that protect groundwater and fresh surface water both quantitati
34、vely and qualitatively11. At the same time, society requires more water and thus more construction projects below groundwater level in even deeper waters. In addition, the sea level may rise as a result of climate change. This contradiction requires engineers working on construction projects below g
35、roundwater level to make more reliable predictions on the effects of such structures on the groundwater conditions. This can partly be achieved by better assessment of the permeability of the ground by in situ tests as required in EN 1997-1:2004, 3.3.9.1. EN 1997-2:2007 contains the following stipul
36、ations, requirements and recommendations:“2.1.4 Groundwater (1) Groundwater investigations shall provide all relevant information on groundwater needed for geotechnical design and construction.(2) Groundwater investigations should provide, when appropriate, information on: the depth, thickness, exte
37、nt and permeability of water-bearing strata in the ground, and joint systems in rock; the elevation of the groundwater surface or piezometric surface of aquifers and their variation over time and actual groundwater levels including possible extreme levels and their periods of recurrence; the pore wa
38、ter pressure distribution; the chemical composition and temperature of groundwater.(3) The information obtained should be sufficient to assess the following aspects, where relevant: the scope for and nature of groundwater lowering work; possible harmful effects of the groundwater on excavations or o
39、n slopes (e.g. risk of hydraulic failure, excessive seepage pressure or erosion); any measures necessary to protect the structure (e.g. water proofing, drainage and measures against aggressive water); effects of groundwater lowering, desiccation, impounding, etc. on the surroundings; the capacity of
40、 the ground to absorb water injected during construction work; whether it is possible to use local groundwater, given its chemical constitution, for construction purposes.” ISO 2012 All rights reserved vBS EN ISO 22282-1:2012BS EN ISO 22282-1:2012 BS EN ISO 22282-1:2012Geotechnical investigation and
41、 testing Geohydraulic testing Part 1: General rules1 ScopeThis part of ISO 22282 establishes the general rules and principles for geohydraulic testing in soil and rock as part of the geotechnical investigation services in accordance with EN 1997-1 and EN 1997-2. It defines concepts and specifies req
42、uirements relating to permeability measurement in soil and rock.The different purposes of geohydraulic testing are to obtain information on the permeability of soil or rock in natural or treated states, transmissivity and storage coefficient, and hydrodynamic parameters of aquifers.Geohydraulic test
43、ing is used for many purposes, such as:a) absorption capacity and effectiveness of grouting in rock mass;b) assessment of seepage and drainage;c) assessment of groundwater lowering work;d) effects of cut-offs for dams;e) effects of tunnels and shaft sinking;f) checking fill or cover tightness;g) ass
44、essment of the flow of fluids and suspensions in the ground;h) planning for remedial measures.NOTE 1 Geohydraulic testing for water supply is covered by ISO 14686.NOTE 2 For most types of ground, field permeability tests yield more reliable data than those carried out in the laboratory, because a la
45、rger volume of material is tested, and because the ground is tested in situ, thereby including effects resulting from the structure of the ground mass but avoiding the disturbance associated with sampling.This part of ISO 22282 deals with the execution of tests with groundwater and does not explicit
46、ly consider other fluids and suspensions. The flow of other fluids and suspensions can be considered by applying the different viscosities and relations between transmissivity, permeability coefficient and intrinsic permeability.2 Normative referencesThe following referenced documents are indispensa
47、ble 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.ISO 14688-1, Geotechnical investigation and testing Identification and classification of soil Part
48、1: Identification and descriptionISO 14689-1, Geotechnical investigation and testing Identification and classification of rock Part 1: Identification and descriptionISO 22282-2, Geotechnical investigation and testing Geohydraulic testing Part 2: Water permeability tests in a borehole using open syst
49、emsINTERNATIONAL STANDARD ISO 22282-1:2012(E) ISO 2012 All rights reserved 1BS EN ISO 22282-1:2012ISO 22282-1:2012(E)ISO 22282-3, Geotechnical investigation and testing Geohydraulic testing Part 3: Water pressure tests in rockISO 22282-4, Geotechnical investigation and testing Geohydraulic testing Part 4: Pumping testsISO 22282-5, Geotechnical investigation and testing Geohydraulic testing Part 5: Infiltrometer testsISO 22282-6, Geotechnical investigation and testing Geohydraulic testing
