Execution of special geotechnical work - Grouting

This document is applicable to the execution, testing and monitoring of geotechnical grouting work.
Grouting for geotechnical purposes (geotechnical grouting) is a process in which the remote placement of a pumpable material in the ground is indirectly controlled by adjusting its rheological characteristics and by the manipulation of the placement parameters (pressure, volume and the flow rate).
The following principles and methods of geotechnical grouting are covered by this document:
-   displacement grouting (compaction and compensation grouting);
-   grouting without displacement of the host material (permeation, fissure/contact grouting, bulk filling).
Figure 1 illustrates the various injection methods associated with these two principles.
NOTE   The term consolidation grouting is sometimes used to emphasize an improvement in the strength or deformation characteristics of a soil or rock mass, with the aim that it does not undergo any unacceptable deformation. The term compensation grouting is used when the objective of grouting is to concurrently compensate for ground loss.
The principal objectives of geotechnical grouting are:
-   the modification of the hydraulic/hydrogeological characteristics of the ground;
-   the modification of the mechanical properties of the ground;
-   the filling of natural cavities, mine workings, voids adjacent to structures;
-   inducing displacement to compensate for ground loss or to stabilize and lift footings, slabs and pavements.
Specialized grouting activities, generally associated with structural and/or emergency works, are not covered by this document.
The execution, testing and monitoring of jet grouting work is not covered by this document and is covered by EN 12716.

Ausführung von Arbeiten im Spezialtiefbau - Injektionen

Dieses Dokument ist anzuwenden für die Ausführung, Prüfung und Überwachung von geotechnischen Injektionsarbeiten.
Die Injektion mit geotechnischer Zielsetzung (geotechnische Injektion) ist ein Vorgang, bei dem die Ein-bringung eines pumpbaren Materials in den Baugrund indirekt kontrolliert wird, indem die rheologischen Kennwerte des Materials entsprechend angepasst und die Einbringparameter (Druck, Volumen und Durch-flussrate) gesteuert werden.
Dieses Dokument behandelt die folgenden Grundsätze und Verfahren für geotechnische Injektionen:
-   Injektion mit Baugrundverdrängung (Verdichtungs- und Kompensationsinjektion);
-   Injektion ohne Baugrundverdrängung (Poreninjektion, Kluft /Kontaktinjektion, Hohlraumverfüllung).
Bild 1 veranschaulicht die verschiedenen Injektionsverfahren, die mit diesen beiden Prinzipien verbunden sind.
ANMERKUNG   Der Begriff Verfestigungsinjektion wird manchmal verwendet, um eine Verbesserung der Festigkeit oder Verformungseigenschaften eines Locker- oder Festgesteins zu betonen, die darauf abzielt, unzulässige Verformung zu vermeiden. Der Begriff Kompensationsinjektion wird verwendet, wenn während der Injektion ein Baugrundverlust zu kompensieren ist.
Die Hauptziele der geotechnischen Injektion sind:
-   die Änderung der hydraulischen/hydrogeologischen Eigenschaften des Baugrunds;
-   die Änderung der mechanischen Eigenschaften des Baugrunds;
-   das Verfüllen von natürlichen Hohlräumen, Grubenbauten, Hohlräumen im Untergrund im Übergang zu angrenzenden Bauwerken;
-   induzierende Verdrängung zum Ausgleich von fehlendem Baugrund oder zum Stabilisieren und Anheben von Fundamenten, Platten und Oberflächenbefestigungen.
Spezielle Injektionsarbeiten, die im Allgemeinen mit Bau- und/oder Arbeiten nach Katastrophenfällen verbunden sind, werden in diesem Dokument nicht behandelt.
Dieses Dokument ist nicht anzuwenden für die Ausführung, Prüfung und Überwachung mittels Düsenstrahl¬verfahren. Dies wird in EN 12716 behandelt.

Exécution des travaux géotechniques spéciaux - Injection

Le présent document s’applique à l’exécution, aux essais et au contrôle des travaux d’injection géotechnique.
L’injection à des fins géotechniques (injection géotechnique) est un procédé qui consiste à introduire à distance dans le terrain un matériau pouvant être pompé, cette introduction étant contrôlée indirectement en ajustant les caractéristiques rhéologiques du matériau pompé et en intervenant sur les paramètres de mise en place (pression, volume et débit).
Le présent document s’applique aux principes et méthodes d’injection géotechnique suivants :
-   injection avec déplacement (injection solide et de compensation) ;
-   injection sans déplacement des terrains (imprégnation, injection de fissure/roche, comblement en masse).
La Figure 1 illustre les différentes méthodes d’injection selon ces deux principes.
NOTE   L’expression « injection de consolidation » est parfois employée pour mettre en avant une amélioration des caractéristiques de résistance ou de déformation d’un sol ou d’une masse rocheuse dans le but que ce sol ou cette masse ne subissent pas de déformations inacceptables. L’expression « injection de compensation » est utilisée lorsque l’objectif de l’injection est de compenser simultanément la perte de sol.
Les principaux objectifs de l’injection géotechnique sont :
-   la modification des propriétés hydrauliques/hydrogéologiques des terrains ;
-   la modification des propriétés mécaniques des terrains ;
-   le comblement des cavités naturelles, des exploitations minières, des vides au contact des structures ;
-   la création de mouvements pour compenser des tassements, stabiliser et redresser des semelles, radiers ou dallages.
Le présent document ne s’applique pas aux activités d’injection spécialisées, qui sont en général associées aux travaux effectués sur les structures, ou en urgence.
Le présent document ne couvre pas l’exécution, les essais et le contrôle des travaux de jet-grouting qui sont traités dans l’EN 12716.

Izvedba posebnih geotehničnih del - Injektiranje

General Information

Status
Published
Publication Date
17-Nov-2020
Withdrawal Date
30-May-2021
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
18-Nov-2020
Due Date
25-Apr-2021
Completion Date
18-Nov-2020

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Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 12715:2021
01-januar-2021
Nadomešča:
SIST EN 12715:2002
Izvedba posebnih geotehničnih del - Injektiranje
Execution of special geotechnical work - Grouting
Ausführung von Arbeiten im Spezialtiefbau - Injektionen
Exécution des travaux géotechniques spéciaux - Injection
Ta slovenski standard je istoveten z: EN 12715:2020
ICS:
93.020 Zemeljska dela. Izkopavanja. Earthworks. Excavations.
Gradnja temeljev. Dela pod Foundation construction.
zemljo Underground works
SIST EN 12715:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 12715:2021

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SIST EN 12715:2021


EN 12715
EUROPEAN STANDARD

NORME EUROPÉENNE

November 2020
EUROPÄISCHE NORM
ICS 93.020 Supersedes EN 12715:2000
English Version

Execution of special geotechnical work - Grouting
Exécution des travaux géotechniques spéciaux - Ausführung von Arbeiten im Spezialtiefbau -
Injection Injektionen
This European Standard was approved by CEN on 14 September 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
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12715:2020 E
worldwide for CEN national Members.

---------------------- Page: 3 ----------------------
SIST EN 12715:2021
EN 12715:2020 (E)
Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 7
3 Terms and definitions . 8
4 Information needed for the execution of work . 10
4.1 General. 10
4.2 Specific information . 11
5 Ground investigation . 12
5.1 General. 12
5.2 Specific requirements . 12
5.3 Field grouting trials and field tests . 13
6 Materials and products . 13
6.1 General. 13
6.2 Grout materials . 13
6.2.1
...

SLOVENSKI STANDARD
oSIST prEN 12715:2019
01-julij-2019
Izvedba posebnih geotehničnih del - Injektiranje
Execution of special geotechnical work - Grouting - Grouting
Ausführung von Arbeiten im Spezialtiefbau - Injektionen - Injektionen
Execution des travaux geotechniques speciaux - Injection - Injection
Ta slovenski standard je istoveten z: prEN 12715
ICS:
93.020 Zemeljska dela. Izkopavanja. Earthworks. Excavations.
Gradnja temeljev. Dela pod Foundation construction.
zemljo Underground works
oSIST prEN 12715:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN 12715:2019

---------------------- Page: 2 ----------------------
oSIST prEN 12715:2019


DRAFT
EUROPEAN STANDARD
prEN 12715
NORME EUROPÉENNE

EUROPÄISCHE NORM

May 2019
ICS 93.020 Will supersede EN 12715:2000
English Version

Execution of special geotechnical work - Grouting -
Grouting
Execution des travaux geotechniques speciaux - Ausführung von Arbeiten im Spezialtiefbau -
Injection - Injection Injektionen - Injektionen
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 288.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.


EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 12715:2019 E
worldwide for CEN national Members.

---------------------- Page: 3 ----------------------
oSIST prEN 12715:2019
prEN 12715:2019 (E)
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 5
4 Information needed for the execution of work . 8
4.1 General. 8
4.2 Specific information . 8
5 Geotechnical investigation . 9
5.1 General. 9
5.2 Specific requirements . 9
5.3 Field grouting tiles and field tests . 10
6 Materials and products .
...

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