EN ISO 22282-1:2012
(Main)Geotechnical investigation and testing - Geohydraulic testing - Part 1: General rules (ISO 22282-1:2012)
Geotechnical investigation and testing - Geohydraulic testing - Part 1: General rules (ISO 22282-1:2012)
ISO 22282-1:2012 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. ISO 22282-1:2012 defines concepts and specifies requirements 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 testing is used for many purposes, such as:
absorption capacity and effectiveness of grouting in rock mass;
assessment of seepage and drainage;
assessment of groundwater lowering work;
effects of cut-offs for dams;
effects of tunnels and shaft sinking;
checking fill or cover tightness;
assessment of the flow of fluids and suspensions in the ground;
planning for remedial measures.
ISO 22282-1:2012 deals with the execution of tests with groundwater and does not explicitly 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.
Geotechnische Erkundung und Untersuchung - Geohydraulische Versuche - Teil 1: Allgemeine Regeln (ISO 22282-1:2012)
Dieser Teil von ISO 22282 behandelt die allgemeinen Regeln und Grundsätze für geohydraulische Versuche in Locker- und Festgesteinen als Teil der geotechnischen Erkundung nach EN 1997 1 und EN 1997 2. Er definiert Begriffe und legt Anforderungen an die Ermittlung der Durchlässigkeit von Locker- und Festgesteinen fest.
Die verschiedenen Zwecke von geohydraulischen Versuchen bestehen darin, Informationen zur Durchlässigkeit von Locker- und Festgesteinen im natürlichen oder behandelten Zustand, zur Transmissivität und zum Speicherkoeffizienten sowie zu den hydrodynamischen Parametern von Grundwasserleitern zu gewinnen.
Geohydraulische Versuche werden zu vielen Zwecken eingesetzt, beispielsweise den folgenden:
a) Absorptionsvermögen und Wirksamkeit der Verpressung im Untergrund;
b) Beurteilung der Versickerung und der Entwässerung;
c) Beurteilung der Grundwasserabsenkung;
d) Auswirkungen der Dichtungen für Talsperren;
e) Auswirkungen von Tunnel und Schachtabsenkungen;
f) Überprüfung der Dichtigkeit von Verfüllungen oder Abdeckungen;
g) Beurteilung des Durchflusses von Fluiden und Suspensionen im Baugrund;
h) Planung von Instandsetzungsmaßnahmen.
ANMERKUNG 1 Geohydraulische Versuche für die Wasserversorgung werden durch ISO 14686 abgedeckt.
ANMERKUNG 2 Für die meisten Arten des Baugrunds ergeben Feldversuche zur Durchlässigkeit zuverlässigere Daten als im Laboratorium durchgeführte Versuche, da ein größeres Materialvolumen untersucht wird und da der Baugrund vor Ort geprüft wird, so dass die Auswirkungen der Konstruktion auf die Masse des Baugrunds mit einbezogen werden, die mit der Probenahme verbundenen Störungen jedoch vermieden werden.
Dieser Teil von ISO 22282 behandelt die Durchführung von Versuchen mit Grundwasser; andere Fluide und Suspensionen werden nicht explizit betrachtet. Der Durchfluss anderer Fluide und Suspensionen kann durch Ansetzen der verschiedenen Viskositäten und Zusammenhänge zwischen Transmissivität, Durchlässigkeitsbeiwert und intrinsischer Durchlässigkeit berücksichtigt werden.
Reconnaissance et essais géotechniques - Essais géohydrauliques - Partie 1: Règles générales (ISO 22282-1:2012)
Geotehnično preiskovanje in preskušanje - Hidrogeološke preiskave - 1. del: Splošna pravila (ISO 22282-1:2012)
Ta del standarda ISO 22282 vzpostavlja splošna pravila in načela za geohidravlično preizkušanje v prsti in kamninah kot del storitev na področju geotehničnega raziskovanja v skladu s standardoma EN 1997-1 in EN 1997-2. Opredeljuje koncepte in določa zahteve v zvezi z merjenjem propustnosti v prsti in kamninah. Različni nameni geohidravličnega preizkušanja so: pridobitev informacij glede propustnosti prsti ali kamnin v naravnih ali obdelanih stanjih, koeficient transmisivnosti in skladiščenja ter hidrodinamični parametri vodonosnikov. Geohidravlično preizkušanje se uporablja za več namenov: a) zmožnost absorpcije in učinkovitost injeciranja v kamninsko maso; b) ocena pronicanja in drenaže; c) ocena nižanja podtalnice; d) učinki prekinitev za jezove; e) učinki predorov in potapljanja rovov; f) preverjanje tesnjenja polnila ali zaščite; g) ocena toka tekočin in suspenzij v tleh; h) načrtovanje za sanacijske ukrepe.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2012
*HRWHKQLþQRSUHLVNRYDQMHLQSUHVNXãDQMH+LGURJHRORãNHSUHLVNDYHGHO
6SORãQDSUDYLOD ,62
Geotechnical investigation and testing - Geohydraulic testing - Part 1: General rules (ISO
22282-1:2012)
Geotechnische Erkundung und Untersuchung - Geohydraulische Versuche - Teil 1:
Allgemeine Regeln (ISO 22282-1:2012)
Reconnaissance et essais géotechniques - Essais géohydrauliques - Partie 1: Règles
générales (ISO 22282-1:2012)
Ta slovenski standard je istoveten z: EN ISO 22282-1:2012
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.
EUROPEAN STANDARD
EN ISO 22282-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2012
ICS 93.020
English Version
Geotechnical investigation and testing - Geohydraulic testing -
Part 1: General rules (ISO 22282-1:2012)
Reconnaissance et essais géotechniques - Essais Geotechnische Erkundung und Untersuchung -
géohydrauliques - Partie 1: Règles générales (ISO 22282- Geohydraulische Versuche - Teil 1: Allgemeine Regeln
1:2012) (ISO 22282-1:2012)
This European Standard was approved 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
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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2012 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 22282-1:2012: E
worldwide for CEN national Members.
Contents Page
Foreword .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 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, 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 identifying 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, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland, Turkey and the United Kingdom.
INTERNATIONAL ISO
STANDARD 22282-1
First edition
2012-06-01
Geotechnical investigation and testing —
Geohydraulic testing —
Part 1:
General rules
Reconnaissance et essais géotechniques — Essais géohydrauliques —
Partie 1: Règles générales
Reference number
ISO 22282-1:2012(E)
©
ISO 2012
ISO 22282-1:2012(E)
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO’s
member body in the country of the requester.
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Published in Switzerland
ii © ISO 2012 – All rights reserved
ISO 22282-1:2012(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 . 4
4 Equipment . 4
4.1 General . 4
4.2 Test section support system . 5
4.3 Measuring tube . 5
4.4 Isolation of the test section . 5
4.5 Measuring and recording devices . 5
4.6 Additional equipment . 6
4.7 Calibration . 6
5 Planning of geohydraulic investigation and testing . 6
5.1 General . 6
5.2 Selection of testing locations . 7
5.3 Selection of test procedure . 7
6 Preparation of the test section and installation of equipment .14
6.1 Requirements for drilling and the test sections .14
6.2 Installation of filter .15
6.3 Checking installation .15
6.4 Safety requirements .15
6.5 Decommissioning .15
6.6 Factors influencing the test results .16
Annex A (informative) Examples of possible test section isolation and support methods .18
Annex B (informative) Examples of shape factors .24
Bibliography .26
ISO 22282-1:2012(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.
International Standards are 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
International 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 prepared 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 technical 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 rock
— Part 4: Pumping tests
— Part 5: Infiltrometer tests
— Part 6: Water permeability tests in a borehole using closed systems
iv © ISO 2012 – All rights reserved
ISO 22282-1:2012(E)
Introduction
The EU water directive requires the member states to increase activities that protect groundwater and fresh
[11]
surface water both quantitatively and qualitatively . 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
groundwater 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 stipulations, 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, extent 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 water 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 on 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 the ground to absorb water injected during construction work;
— whether it is possible to use local groundwater, given its chemical constitution, for construction purposes.”
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