EN ISO 22282-4:2021

Geotechnical investigation and testing - Geohydraulic testing - Part 4: Pumping tests (ISO 22282-4:2021)

This document establishes requirements for pumping tests as part of geotechnical investigation service in accordance with EN 1997-1 and EN 1997-2.
This document applies to pumping tests performed on aquifers whose permeability is such that pumping from a well can create a lowering of the piezometric head within hours or days depending on the ground conditions and the purpose. It covers pumping tests carried out in soils and rock.
The tests concerned by this document are those intended for evaluating the hydrodynamic parameters of an aquifer and well parameters, such as:
—     permeability of the aquifer,
—     radius of influence of pumping,
—     pumping rate of a well,
—     response of drawdown in an aquifer during pumping,
—     skin effect,
—     well storage,
—     response of recovery in an aquifer after pumping.

Geotechnische Erkundung und Untersuchung - Geohydraulische Versuche - Teil 4: Pumpversuche (ISO 22282-4:2021)

Dieses Dokument stellt Anforderungen an Pumpversuche als Teil der geotechnischen Erkundung nach EN 1997 1 und EN 1997 2 auf.
Dieses Dokument gilt für Pumpversuche in Grundwasserleitern, deren Durchlässigkeit so ist, dass das Abpumpen aus einem Brunnen — in Abhängigkeit von den Bedingungen des Baugrunds und dem Zweck — zu einer Absenkung der piezometrischen Höhe innerhalb von Stunden oder Tagen führen kann. Das Dokument behandelt Pumpversuche in Locker  und Felsgestein.
Bei den durch dieses Dokument abgedeckten Versuchen handelt es sich um diejenigen, die zur Auswertung der hydrodynamischen Parameter eines Grundwasserleiters und von Brunnenparametern vorgesehen sind, z. B.:
—   allgemeiner Durchlässigkeitsbeiwert des Grundwasserleiters;
—   Einflussradius des Pumpens;
—   Förderrate für einen Brunnen;
—   Auswirkung in Bezug auf die Absenkung in einem Grundwasserleiter während des Pumpens;
—   Skin Faktor;
—   Brunnenspeicherkoeffizient;
—   Auswirkung in Bezug auf die Wiederherstellung in einem Grundwasserleiter nach dem Pumpen.

Reconnaissance et essais géotechniques - Essais géohydrauliques - Partie 4: Essais de pompage (ISO 22282-4:2021)

Ce document traite des exigences relatives aux essais de pompage réalisés dans le cadre d’une mission de reconnaissance géotechnique conformément à l’EN 1997-1 et l’EN 1997-2.
Ce document s’applique aux essais de pompage réalisés sur des formations aquifères dont la perméabilité est telle que le pompage à partir d’un puits peut créer un rabattement du niveau piézométrique en quelques heures ou jours selon les conditions de terrain et l’objectif. Il traite des essais de pompage réalisés dans les sols et les roches.
Les essais concernés par ce document sont ceux destinés à évaluer les paramètres hydrodynamiques d’une formation aquifère et les paramètres du puits, tels que
—    la perméabilité de la formation aquifère,
—    le rayon d’influence du pompage,
—    le débit de pompage d’un puits,
—    la réponse en termes de rabattement dans une formation aquifère pendant le pompage,
—    l’effet pariétal,
—    l’emmagasinement du puits,
—    la réponse en termes de remontée dans une formation aquifère après pompage.

Geotehnično preiskovanje in preskušanje - Hidrogeološke preiskave - 4. del: Črpalni preskus (ISO 22282-4:2021)

General Information

• Status: Published
• Publication Date: 06-Apr-2021
• Withdrawal Date: 30-Oct-2021
• ICS: 93.020 - Earthworks. Excavations. Foundation construction. Underground works
• Technical Committee: CEN/TC 341 - Geotechnical Investigation and Testing
• Drafting Committee: CEN/TC 341 - Geotechnical Investigation and Testing
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 07-Apr-2021
• Completion Date: 07-Apr-2021
• Ref Project: SIST EN ISO 22282-4:2021 - Geotechnical investigation and testing - Geohydraulic testing - Part 4: Pumping tests (ISO 22282-4:2021)

Relations

• Replaces: EN ISO 22282-4:2012 - Geotechnical investigation and testing - Geohydraulic testing - Part 4: Pumping tests (ISO 22282-4:2012)
• Effective Date: 14-Apr-2021

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2021
Nadomešča:
SIST EN ISO 22282-4:2012
Geotehnično preiskovanje in preskušanje - Hidrogeološke preiskave - 4. del:
Črpalni preskus (ISO 22282-4:2021)
Geotechnical investigation and testing - Geohydraulic testing - Part 4: Pumping tests
(ISO 22282-4:2021)
Geotechnische Erkundung und Untersuchung - Geohydraulische Versuche - Teil 4:
Pumpversuche (ISO 22282-4:2021)
Reconnaissance et essais géotechniques - Essais géohydrauliques - Partie 4: Essais de
pompage (ISO 22282-4:2021)
Ta slovenski standard je istoveten z: EN ISO 22282-4:2021
ICS:
93.020 Zemeljska dela. Izkopavanja. Earthworks. Excavations.
Gradnja temeljev. Dela pod Foundation construction.
zemljo Underground works
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 22282-4
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2021
EUROPÄISCHE NORM
ICS 93.020 Supersedes EN ISO 22282-4:2012
English Version
Geotechnical investigation and testing - Geohydraulic
testing - Part 4: Pumping tests (ISO 22282-4:2021)
Reconnaissance et essais géotechniques - Essais Geotechnische Erkundung und Untersuchung -
géohydrauliques - Partie 4: Essais de pompage (ISO Geohydraulische Versuche - Teil 4: Pumpversuche (ISO
22282-4:2021) 22282-4:2021)
This European Standard was approved by CEN on 10 December 2020.

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 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 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, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 22282-4:2021 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 22282-4:2021) has been prepared by Technical Committee ISO/TC 182
"Geotechnics" in collaboration with Technical Committee CEN/TC 341 “Geotechnical Investigation and
Testing” the secretariat of which is held by BSI.
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 October 2021, and conflicting national standards shall
be withdrawn at the latest by October 2021.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 22282-4:2012.
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, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 22282-4:2021 has been approved by CEN as EN ISO 22282-4:2021 without any
modification.
INTERNATIONAL ISO
STANDARD 22282-4
Second edition
2021-03
Geotechnical investigation and
testing — Geohydraulic testing —
Part 4:
Pumping tests
Reconnaissance et essais géotechniques — Essais géohydrauliques —
Partie 4: Essais de pompage
Reference number
ISO 22282-4:2021(E)
©
ISO 2021
ISO 22282-4:2021(E)
© ISO 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2021 – All rights reserved

ISO 22282-4:2021(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and symbols . 2
3.1 Terms and definitions . 2
3.2 Symbols . 2
4 Equipment . 2
5 Test procedure . 3
5.1 Test preparation . 3
5.1.1 General. 3
5.1.2 Determining the discharge rate for the pumping test . 3
5.2 Arranging the disposal of discharge water . 3
5.3 Executing and equipping the well . 4
5.3.1 Design of the test well . 4
5.3.2 Installation procedure . . . 6
5.3.3 Preparation of the well . 6
5.4 Executing and equipping the piezometers . . 6
5.4.1 Installation procedure . . . 6
5.4.2 Preparation of piezometers . 6
5.5 Execution of the test . 7
5.5.1 General. 7
5.5.2 Pre-pumping monitoring . 7
5.5.3 Preliminary pumping phase. 7
5.5.4 Pumping test . . . 7
5.5.5 Post-pumping monitoring . 8
5.6 Uncertainty of measurement . 8
5.7 Interruptions in pumping . 9
5.8 Decommissioning . 9
6 Test results . 9
7 Reports. 9
7.1 Field report . 9
7.1.1 General. 9
7.1.2 Installation record .10
7.1.3 Record of measured values and test results .10
7.2 Test report .11
Annex A (informative) Record of measured values and test results of the pumping test —
Example .12
Annex B (informative) Determining the pumping test discharge .15
Annex C (informative) Interpretation of the pumping test results .19
Bibliography .27
ISO 22282-4:2021(E)
Foreword
ISO (the International Organization for Standardization) 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 represented 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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval crit
...