SIST EN ISO 22282-5:2012

SLOVENSKI STANDARD
SIST EN ISO 22282-5:2012
01-december-2012
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Geotechnical investigation and testing - Geohydraulic testing - Part 5: Infiltrometer tests
(ISO 22282-5:2012)
Geotechnische Erkundung und Untersuchung - Geohydraulische Versuche - Teil 5:
Infiltrometerversuche (ISO 22282-5:2012)
Reconnaissance et essais géotechniques - Essais géohydrauliques - Partie 5: Essais
d'infiltromètres (ISO 22282-5:2012)
Ta slovenski standard je istoveten z: EN ISO 22282-5:2012
ICS:
93.020 Zemeljska dela. Izkopavanja. Earthworks. Excavations.
Gradnja temeljev. Dela pod Foundation construction.
zemljo Underground works
SIST EN ISO 22282-5:2012 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 22282-5:2012

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SIST EN ISO 22282-5:2012


EUROPEAN STANDARD
EN ISO 22282-5

NORME EUROPÉENNE

EUROPÄISCHE NORM
June 2012
ICS 93.020
English Version
Geotechnical investigation and testing - Geohydraulic testing -
Part 5: Infiltrometer tests (ISO 22282-5:2012)
Reconnaissance et essais géotechniques - Essais Geotechnische Erkundung und Untersuchung -
géohydrauliques - Partie 5: Essais d'infiltromètres (ISO Geohydraulische Versuche - Teil 5: Infiltrometerversuche
22282-5:2012) (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 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 22282-5:2012: E
worldwide for CEN national Members.

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SIST EN ISO 22282-5:2012
EN ISO 22282-5:2012 (E)
Contents Page
Foreword .3

2

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SIST EN ISO 22282-5:2012
EN ISO 22282-5:2012 (E)
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 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.

3

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SIST EN ISO 22282-5:2012

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SIST EN ISO 22282-5:2012
INTERNATIONAL ISO
STANDARD 22282-5
First edition
2012-06-01
Geotechnical investigation and testing —
Geohydraulic testing —
Part 5:
Infiltrometer tests
Reconnaissance et essais géotechniques — Essais géohydrauliques —
Partie 5: Essais d’infiltromètres
Reference number
ISO 22282-5:2012(E)
©
ISO 2012

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SIST EN ISO 22282-5:2012
ISO 22282-5:2012(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2012
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.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2012 – All rights reserved

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SIST EN ISO 22282-5:2012
ISO 22282-5:2012(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 22282-5 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
© ISO 2012 – All rights reserved iii

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SIST EN ISO 22282-5:2012

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SIST EN ISO 22282-5:2012
INTERNATIONAL STANDARD ISO 22282-5:2012(E)
Geotechnical investigation and testing — Geohydraulic testing —
Part 5:
Infiltrometer tests
1 Scope
This part of ISO 22282 establishes requirements for ground investigations by means of 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 infiltration 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 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 ranges of permeability.
−5 −8
Open systems are adapted to permeability ranges from 10 to 10 m/s and closed systems for permeability
−8
lower than 10 .
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 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;
— hydrogeology studies; and
— waste storage.
2 Normative references
The 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) applies.
ISO 22282-1, Geotechnical investigation and testing — Geohydraulic testing — Part 1: General rules
ISO 22475-1, Geotechnical investigation and testing — Sampling methods and groundwater measurements —
Part 1: Technical principles for execution
© ISO 2012 – All rights reserved 1

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SIST EN ISO 22282-5:2012
ISO 22282-5:2012(E)
3 Terms, definitions and symbols
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 22282-1 apply.
3.2 Symbols
For the purposes of this document, the symbols given in Table 1 apply.
Table 1 — Symbols
Symbol Designation Unit
D diameter of the inner infiltrometer ring m
1
D diameter of the outer infiltrometer ring m
2
h hydraulic head m
h(t) hydraulic head at time t m
−1
k permeability coefficient m⋅s
t time s
Z thickness of saturated zone m
w
Z penetration depth of the cell m
p
−1
v
flow rate velocity m⋅s
V
volume —
η dynamic viscosity at temperature T mPa⋅s
T
θ
volumetric water content —
w
(gravimetric) water content —
−3
ρ density of dry soil kg⋅m
d
−3
ρ density of solid particles kg⋅m
s
ψ suction at the infiltration front m
f
4 Equipment
4.1 General
The test equipment comprises:
a) a test cell for infiltrating the 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 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 devices shall be periodically calibrated according ISO 22282-1.
2 © ISO 2012 – All rights reserved

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SIST EN ISO 22282-5:2012
ISO 22282-5:2012(E)
4.2 Test cell
4.2.1 General
The test can be performed with an open system or a closed system.
4.2.2 Open system
The test cell comprises a single cylindrical ring or two coaxial cylindrical rings (see Figure 1).
In the case of the double ring, the outer diameter D shall be at least twice the diameter of the inner ring D
2 1,
with D ≥ 200 mm.
1
In the case of the single ring, its diameter D shall be at least 200 mm.
1
The test device shall be designed to be pushed into the ground to a penetration depth Z of at least 50 mm.
p
The rings shall be rigid and dimensionally stable. Their lower part shall be sharpened to facilitate penetration.
4.2.3 Closed system
The test cell comprises a single cylindrical ring sealed by a tight rigid lid (see Figures 2 and 3). The diameter of
the ring D shall not be less than 200 mm.
1
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 device shall be designed to be pushed into the ground to a penetration depth Z of at least 50 mm.
p
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 monitored with a
resolution of at least 0,01 mm.
© ISO 2012 – All rights reserved 3

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SIST EN ISO 22282-5:2012
ISO 22282-5:2012(E)
Key
1 inner ring
2 outer ring
3 sharpened edge
4 water volume
5 sealing material
Z penetration depth
p
See also Annex A.
Figure 1 — Cross-section of an open double ring — Example
Key
1 drain valves
2 water supply valves
3 confining device (optional)
4 confining force
5 displacement gauge
6 infiltrometer cell
F force
Z penetration depth
p
See also Annex A.
Figure 2 — Cross-section of a closed single ring (example) — Constant-head type
4 © ISO 2012 – All rights reserved

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SIST EN ISO 22282-5:2012
ISO 22282-5:2012(E)
Key
1 drain valves
2 water supply valves
3 confining device (optional)
4 confining force
5 displacement gauge
6 infiltrometer cell
7 measuring tube
F force
Z penetration depth
p
See also Annex A.
Figure 3 — Cross-section of a closed single ring (example) — Variable-head type
4.3 Measuring system for hydrostatic pressure or infiltrated volume
4.3.1 Open system
The system for measuring the changes with time of the hydraulic head and therefore the infiltrated water volume
depends on the permeability of the soil and shall have a resolution better than 1 % of the measured change.
When the double ring is used, the hydraulic head shall be the same in both rings.
4.3.2 Closed system
For the constant head procedure, a pressure-volume controller shall be used to impose and to maintain
constant the hydrostatic pressure in the measurement ring. The infiltrated volume variations shall be measured
with the pressure-volume controller with a resolution of at least 0,1 ml. For the variable head procedure, a
pressure gauge or transducer shall be used for the measurement within the measuring tube of the hydraulic
head variations with an uncertainty of 1 mm or better.
4.4 Temperature measuring device
If viscosity corrections are required, a temperature measuring device shall be used to record water temperature
with a resolution of at least 0,5 °C.
© ISO 2012 – All rights reserved 5

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SIST EN ISO 22282-5:2012
ISO 22282-5:2012(E)
4.5 Material requirements
Only clean water, free of suspended solids, shall be used.
If sealing material is required for installation of the ring, its composition shall be determined according to
site conditions.
5 Test procedure
5.1 Preparation of the test surface
The test area shall be sufficiently larger than the infiltrometer to allow any leakage to be observed. This surface
shall be horizontal, smooth, clean and undisturbed.
5.2 Installation of the ring or rings
The rings shall be installed such that no undesired lateral leakage occurs and the area of infiltration is clearly defined.
One of the following methods should be used:
— placing the ring in an excavated slot, which is then backfilled with sealant (see Figure 1);
— pushing the ring at least 5 cm into the ground by hammering or applying downward pressure (see Figure 2).
5.3 Conducting the test
5.3.1 General
During the test, observations shall be made to detect any lateral leakage. If lateral leakages occur, the test shall
be terminated, the sealing shall be improved and a new test shall be performed.
The duration of the test depends on the permeability and the water content and degree of saturation of the soil,
as well as on the applied hydraulic head.
5.3.2 Constant head procedure
The following successive operations shall be carried out:
a) installation:
— of the
...